Sharp Display Technology Corporation

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IPC Class
G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements 175
H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material 163
H05B 33/10 - Apparatus or processes specially adapted to the manufacture of electroluminescent light sources 102
H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots 99
G02F 1/1362 - Active matrix addressed cells 94
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1.

DISPLAY DEVICE

      
Application Number 18851196
Status Pending
Filing Date 2022-07-21
First Publication Date 2025-07-31
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Kobayashi, Masamitsu
  • Miura, Takafumi

Abstract

A main calculation unit generates emphasized Y luminance data by performing luminance emphasis processing on only Y luminance data included in YUV data representing an image of one frame. Further, the main calculation unit generates blurred Y luminance data by performing luminance blur processing on only the Y luminance data. In this way, it is possible to perform processing for improving the display quality of a moving picture in a shorter time period.

IPC Classes  ?

  • G09G 3/3208 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]

2.

SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE MANUFACTURING METHOD

      
Application Number 18856685
Status Pending
Filing Date 2022-06-17
First Publication Date 2025-07-31
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Kanzaki, Yohsuke
  • Saitoh, Takao
  • Fujiwara, Masaki
  • Miwa, Masahiko
  • Yamanaka, Masaki
  • Sun, Yi
  • Kamatani, Kouhei

Abstract

A method for manufacturing a semiconductor device including an oxide semiconductor layer, a gate insulating film, and a gate electrode layered in this order on a substrate, includes: forming the oxide semiconductor layer on the substrate; forming the gate insulating film on the oxide semiconductor layer; forming the gate electrode on the gate insulating film; and implanting an impurity corresponding to an oxygen-defect-inducing factor from above the gate insulating film. In the implanting, the impurity is implanted so that a peak of concentration of the impurity is located in the gate insulating film and the impurity corresponding to the oxygen-defect-inducing factor is implanted from above the gate insulating film after the gate electrode is formed on the gate insulating film and a photoresist is formed covering the gate electrode.

IPC Classes  ?

3.

DISPLAY DEVICE AND METHOD FOR DRIVING SAME

      
Application Number JP2024001941
Publication Number 2025/158553
Status In Force
Filing Date 2024-01-24
Publication Date 2025-07-31
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Yamamoto, Kaoru

Abstract

The present invention achieves partial driving without causing display failure in a display device provided with a pixel circuit having a configuration in which an N-type transistor and a P-type transistor are mixed. A first scanning signal line connected to the control terminal of an initialization transistor within a pixel circuit 15 and a second scanning signal line connected to the control terminal of a threshold value compensation transistor within the pixel circuit 15 are driven by mutually different shift registers. A scanning-signal-line-driving circuit drives the first scanning signal line and the second scanning signal line so that the initialization transistor and the threshold value compensation transistor are kept in an OFF state in a pixel circuit included in a row set in a data maintenance row.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
  • G09G 3/3266 - Details of drivers for scan electrodes
  • G09G 3/3275 - Details of drivers for data electrodes

4.

LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT

      
Application Number JP2024002481
Publication Number 2025/158657
Status In Force
Filing Date 2024-01-26
Publication Date 2025-07-31
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Ueda, Yunting
  • Qu, Yang
  • Kitagawa, Makoto

Abstract

A light-emitting element (2) comprises an anode (21), a hole injection layer (22), a light-emitting layer (24), an electron transport layer (25), and a cathode (26) in the stated order. The electron transport layer contains first metal atoms. The hole injection layer contains the first metal atoms and a chelating agent.

IPC Classes  ?

5.

DISPLAY DEVICE AND CONTROL METHOD FOR DISPLAY DEVICE

      
Application Number JP2024002454
Publication Number 2025/158650
Status In Force
Filing Date 2024-01-26
Publication Date 2025-07-31
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Suyama, Tatsuhiko
  • Orita, Yoshitaka
  • Takahashi, Kazuki
  • Shinada, Kei

Abstract

A display device (100) comprises: a display unit (10) having a plurality of sub-pixels (Pi) each including a light-emitting element; and a control unit (20) for controlling the display unit, the control unit shifting the display position of an image frame in the display unit with the passage of time. The control unit sets the display position according to gradation data of the image frame and stress data corresponding to a sub-pixel group in a predetermined region of the display unit.

IPC Classes  ?

  • G09G 3/3208 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

6.

PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD OF DRIVING PIXEL CIRCUIT

      
Application Number JP2024002211
Publication Number 2025/158615
Status In Force
Filing Date 2024-01-25
Publication Date 2025-07-31
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Tanaka, Kohhei

Abstract

Provided is a pixel circuit for an organic EL display device, wherein a drive transistor is configured so that: a drain terminal is connected to a high voltage-side power source line via a power source supply transistor; a source terminal is connected to an anode of an organic EL element via a light emission control transistor; and a gate terminal is connected to a reference voltage line via a first voltage setting transistor. A retention capacitor is configured so that a first terminal is connected to the gate terminal, and a second terminal is connected to the source terminal. A coupling capacitor is configured so that a first terminal is connected to the source terminal, and a second terminal is connected to the reference voltage line via a second voltage setting transistor and is also connected to a data signal line via a write control transistor. The organic EL terminal is configured so that an anode is connected to an initialization voltage line via a transistor, and a cathode connected to a low voltage-side power source line.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

7.

DISPLAY DEVICE AND METHOD FOR MANUFACTURING DISPLAY DEVICE

      
Application Number JP2024001595
Publication Number 2025/158482
Status In Force
Filing Date 2024-01-22
Publication Date 2025-07-31
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Sakuma, Jun
  • Asaoka, Yasushi

Abstract

A display device (1) comprises: an island-shaped lower pixel electrode (3) configured from a central portion (3c) and a peripheral portion (3pc); an island-shaped upper pixel electrode (9) overlapping the central portion (3c) of the lower pixel electrode (3) in plan view and not overlapping the peripheral portion (3pc) of the lower pixel electrode (3) in plan view; a functional layer (8G) including a green light-emitting layer (6G) provided, between the lower pixel electrode (3) and the upper pixel electrode (9), in a size larger than the upper pixel electrode (9) in plan view; an insulating layer (10) having an opening (10k); and a common electrode (11) electrically connected a plurality of upper pixel electrodes (9) via a plurality of openings (10k). The average film thickness of a first portion (8G1) of the functional layer (8G) is different from the average film thickness of a second portion (8G2) of the functional layer (8G).

IPC Classes  ?

  • H10K 50/822 - Cathodes characterised by their shape
  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 50/824 - Cathodes combined with auxiliary electrodes
  • H10K 59/122 - Pixel-defining structures or layers, e.g. banks
  • H10K 102/10 - Transparent electrodes, e.g. using graphene

8.

LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT

      
Application Number 18699502
Status Pending
Filing Date 2021-12-09
First Publication Date 2025-07-24
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Yamamoto, Satoru
  • Ueda, Masaya
  • Doe, Takahiro

Abstract

A light-emitting layer includes a quantum dot and a first ligand to be coordinated to the quantum dot, an electron transport layer is in contact with the light-emitting layer and includes a second ligand, and the first ligand and the second ligand have the same functional group, are each a halide ion, or are each a chalcogenide ion, the light-emitting layer includes a first metal element having an ionization tendency equal to or higher than an ionization tendency of lead, the first contact layer includes a second metal element having an ionization tendency equal to or higher than the ionization tendency of lead, the first metal element is selected from a group including alkali metals and alkaline earth metals, and the second metal element is selected from the group including alkali metals and alkaline earth metals.

IPC Classes  ?

  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • B82Y 20/00 - Nanooptics, e.g. quantum optics or photonic crystals
  • C09K 11/02 - Use of particular materials as binders, particle coatings or suspension media therefor
  • H10K 85/30 - Coordination compounds

9.

DISPLAY DEVICE

      
Application Number 18697927
Status Pending
Filing Date 2021-12-07
First Publication Date 2025-07-24
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Sakuma, Jun
  • Asaoka, Yasushi

Abstract

A display device includes: a red light-emitting layer configured to emit red light, a green light-emitting layer configured to emit green light, a first blue light-emitting layer configured to emit first blue light, and a second blue light-emitting layer configured to emit second blue light, the red light-emitting layer, the green light-emitting layer, the first blue light-emitting layer, and the second blue light-emitting layer being individually provided in a cross-sectional view of the display device; and a yellow-wavelength conversion layer provided over at least the second blue light-emitting layer, and configured to convert the second blue light into yellow light.

IPC Classes  ?

  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
  • H10K 59/122 - Pixel-defining structures or layers, e.g. banks
  • H10K 59/38 - Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]

10.

METHOD FOR MANUFACTURING ACTIVE MATRIX SUBSTRATE, METHOD FOR MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE, ACTIVE MATRIX SUBSTRATE, AND LIQUID CRYSTAL DISPLAY DEVICE

      
Application Number 19027540
Status Pending
Filing Date 2025-01-17
First Publication Date 2025-07-24
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Takahata, Hitoshi
  • Daitoh, Tohru
  • Kikuchi, Tetsuo
  • Nishimiya, Setsuji
  • Suzuki, Masahiko

Abstract

A method for manufacturing an active matrix substrate includes (A) forming a plurality of TFTs on a substrate, (B) forming an interlayer insulating layer covering the plurality of TFTs, (C) forming a plurality of touch wiring lines on the interlayer insulating layer, (D) forming a first dielectric layer covering the plurality of touch wiring lines, (E) forming a common electrode on the first dielectric layer, (F) forming a second dielectric layer covering the common electrode, and (G) forming a plurality of pixel electrodes on the second dielectric layer. The interlayer insulating layer includes an organic insulating layer, and the forming an interlayer insulating layer (B) includes (B1) forming the organic insulating layer including a plurality of openings and a plurality of bump portions protruding upward by using a multi-tone photomask.

IPC Classes  ?

  • H10D 86/60 - Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs wherein the TFTs are in active matrices
  • H10D 86/01 - Manufacture or treatment
  • H10D 86/40 - Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs

11.

METHOD FOR MANUFACTURING FUNCTIONAL LAYER, METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT, AND METHOD FOR MANUFACTURING DISPLAY DEVICE

      
Application Number JP2024001217
Publication Number 2025/154218
Status In Force
Filing Date 2024-01-18
Publication Date 2025-07-24
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Utsumi, Hisayuki
  • Nakano, Takayuki

Abstract

111) on the inkjet head (51) side of the nozzle row (2L) of the inkjet head (52) is equal to an interval between the nozzles (1N, 2N) in each of the nozzle rows (1L, 2L). The inkjet heads perform simultaneous scanning to manufacture a hole injection layer 23 containing nanoparticles.

IPC Classes  ?

  • H10K 71/13 - Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing
  • B41J 2/155 - Arrangement thereof for line printing
  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
  • H05B 33/10 - Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H10K 50/15 - Hole transporting layers
  • H10K 50/16 - Electron transporting layers
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 59/122 - Pixel-defining structures or layers, e.g. banks

12.

INTEGRATED CIRCUIT ELEMENT, DISPLAY DEVICE, AND ELECTRONIC APPARATUS

      
Application Number JP2024001233
Publication Number 2025/154224
Status In Force
Filing Date 2024-01-18
Publication Date 2025-07-24
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Takahashi, Kazuki
  • Suyama, Tatsuhiko
  • Tanaka, Noriyuki
  • Nakamura, Kazuo

Abstract

An integrated circuit element (10) according to the present disclosure comprises: a first port (P1) and a second port (P2), each of which extracts a first voltage (V1) generated by a constant-voltage source (CVS); a first current-limiting circuit (L1) for limiting the current from the first port (P1) so as to be equal to or less than a first threshold value; and a second current-limiting circuit (L2) for limiting the current from the second port (P2) so as to be equal to or less than a second threshold value.

IPC Classes  ?

  • G09F 9/00 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

13.

DISPLAY DEVICE

      
Application Number 18700479
Status Pending
Filing Date 2022-01-24
First Publication Date 2025-07-17
Owner Sharp Display Technology Corporation (Japan)
Inventor Miyata, Hidekazu

Abstract

A first capacitor has: a first electrode connected to a gate terminal of a drive transistor and to a write control transistor; and a second electrode connected to a constant potential wire, such that a data signal is sequentially written to the first capacitor. A second capacitor having: a first electrode connected to a gate terminal of the drive transistor, and to the first electrode of the first capacitor; and a second electrode connected to a control line. The control line is supplied with a pulse signal.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

14.

ARRAY SUBSTRATE

      
Application Number 19001749
Status Pending
Filing Date 2024-12-26
First Publication Date 2025-07-17
Owner Sharp Display Technology Corporation (Japan)
Inventor Honjo, Masatomo

Abstract

An array substrate includes gate lines extending in a first direction and being portions of a gate metal film, source lines extending in a second direction and being portions of a source metal film, and first and second TFTs arranged alternately in the first direction. The first TFTs include first semiconductor portions that are portions of a first semiconductor film, first gate electrodes that are portions of the gate metal film, and first source electrodes and first drain electrodes that are portions of the source metal film. The second TFTs include second semiconductor portions that are portions of a second semiconductor film above the first semiconductor film via an insulating film, second gate electrodes that are portions of the gate metal film, and second source electrodes and second drain electrodes that are portions of the source metal film. The first and second semiconductor portions are alternately arranged.

IPC Classes  ?

  • H10D 86/40 - Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs

15.

DISPLAY SUBSTRATE AND DISPLAY DEVICE

      
Application Number 19007714
Status Pending
Filing Date 2025-01-02
First Publication Date 2025-07-17
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Hosoyachi, Kohei
  • Murakami, Yuhichiroh
  • Furuta, Shige
  • Yamaguchi, Takahiro

Abstract

A display substrate includes: a first wiring line located in a display region where an image is displayed; a second wiring line located in a non-display region where the image is not displayed; a first circuit unit located in the non-display region and including a first output section connected to the first wiring line and a first input section connected to the second wiring line; and a second circuit unit located in the non-display region and connected to the second wiring line but not connected to the first wiring line, wherein the second circuit unit is located adjacent to the first circuit unit along the second wiring line in the non-display region.

IPC Classes  ?

  • H10D 86/40 - Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
  • G02F 1/1362 - Active matrix addressed cells
  • G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
  • H10D 86/60 - Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs wherein the TFTs are in active matrices

16.

LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, AND QUANTUM DOT DISPERSION

      
Application Number JP2024000235
Publication Number 2025/150108
Status In Force
Filing Date 2024-01-10
Publication Date 2025-07-17
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Yaguchi, Yuma

Abstract

A red light-emitting element (5R) comprises: a lower electrode (22); an upper electrode (25); and a red light-emitting layer (24 REM) provided between the lower electrode (22) and the upper electrode (25) and including a silicon oxide containing at least one among a hydroxy group and an alkoxy group and a plurality of quantum dots (QD), wherein ((amount of hydroxy group + amount of alkoxy group)/(amount of Si element)) × 100 [%] in the red light-emitting layer (24 REM) is 1 [%] to 200 [%].

IPC Classes  ?

  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H05B 33/10 - Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
  • H05B 33/20 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
  • H05B 33/22 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
  • H10K 50/15 - Hole transporting layers
  • H10K 50/16 - Electron transporting layers
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating
  • H10K 85/40 - Organosilicon compounds, e.g. TIPS pentacene

17.

LIGHT-EMITTING ELEMENT, LIGHT-EMITTING APPARATUS, AND DISPLAY APPARATUS

      
Application Number JP2024000467
Publication Number 2025/150155
Status In Force
Filing Date 2024-01-11
Publication Date 2025-07-17
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Sakuma, Jun
  • Asaoka, Yasushi

Abstract

EL_PEAKPL_PEAKEL_PEAKPL_PEAKEL_PEAKPL_PEAKPL_PEAK + 10 nm.

IPC Classes  ?

  • H10K 59/122 - Pixel-defining structures or layers, e.g. banks
  • H10K 50/125 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light

18.

DISPLAY DEVICE

      
Application Number 18702242
Status Pending
Filing Date 2021-12-17
First Publication Date 2025-07-17
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Miyamoto, Tadayoshi
  • Nakamura, Yoshinobu

Abstract

In a thin film transistor layer, a first semiconductor film made of an oxide semiconductor, a first gate insulating film made of an inorganic insulating film, a first metal film, a first interlayer insulating film made of an inorganic insulating film, a second metal film, a protective insulating film made of an inorganic insulating film, and a flattening film made of an organic resin material are sequentially layered. The protective insulating film includes a thin film portion provided at a portion where a plurality of first wiring lines formed of the first metal film and a plurality of second wiring lines formed of the second metal film intersect with each other so as to be thinner than a portion of the protective insulating film around the intersecting portion.

IPC Classes  ?

  • H10K 59/131 - Interconnections, e.g. wiring lines or terminals
  • H10D 86/40 - Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
  • H10D 86/60 - Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs wherein the TFTs are in active matrices
  • H10K 59/80 - Constructional details

19.

LIGHT-EMITTING ELEMENT AND MANUFACTURING METHOD THEREFOR, DISPLAY DEVICE, AND NICKEL OXIDE NANO-PARTICLE DISPERSION

      
Application Number 18852757
Status Pending
Filing Date 2022-05-30
First Publication Date 2025-07-10
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Utsumi, Hisayuki
  • Kanehiro, Masayuki

Abstract

A light-emitting element includes an anode electrode, a cathode electrode, an EML provided therebetween, and an HIL provided between the anode electrode and the EML, the HIL including a NiO-NP and a PVP.

IPC Classes  ?

  • H10K 85/10 - Organic polymers or oligomers
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 50/15 - Hole transporting layers
  • H10K 50/17 - Carrier injection layers
  • H10K 59/12 - Active-matrix OLED [AMOLED] displays
  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
  • H10K 71/15 - Deposition of organic active material using liquid deposition, e.g. spin coating characterised by the solvent used
  • H10K 102/00 - Constructional details relating to the organic devices covered by this subclass

20.

DISPLAY DEVICE

      
Application Number 18850776
Status Pending
Filing Date 2022-05-13
First Publication Date 2025-07-10
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Saitoh, Takao
  • Kanzaki, Yohsuke
  • Yamanaka, Masaki
  • Miwa, Masahiko
  • Sun, Yi
  • Fujiwara, Masaki
  • Kamatani, Kouhei

Abstract

A display device includes: a resin substrate; and a TFT layer provided on the resin substrate, and including a plurality of TFTs arranged for each of subpixels forming a display region. Each of the TFTs has a semiconductor layer formed of a polysilicon film. The plurality of TFTs are electrically connected to one another through a conductor region of the semiconductor layer. The TFT layer includes a light-shielding film provided to the semiconductor layer toward the resin substrate. The light-shielding film has a peripheral end disposed outside a peripheral end of the semiconductor layer.

IPC Classes  ?

  • H10K 59/121 - Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
  • H10D 86/40 - Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
  • H10D 86/60 - Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs wherein the TFTs are in active matrices
  • H10K 59/126 - Shielding, e.g. light-blocking means over the TFTs

21.

VAPOR DEPOSITION DEVICE AND METHOD FOR PRODUCING DISPLAY DEVICE

      
Application Number 18853133
Status Pending
Filing Date 2022-05-27
First Publication Date 2025-07-10
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Kobayashi, Yuhki
  • Inoue, Tsuyoshi

Abstract

A vapor deposition device includes a crucible configured to accommodate a vapor deposition material and a heat source configured to heat the vapor deposition material. An inclined portion is provided at a short-side sidewall portion, which is specific portion inside the crucible where heat from the heat source is not transferred as much compared to other portions inside the crucible, the inclined portion being configured to roll particles of the vapor deposition material M down and in a direction away from the specific portion.

IPC Classes  ?

22.

DISPLAY DEVICE AND METHOD OF MANUFACTURING DISPLAY DEVICE

      
Application Number 19001760
Status Pending
Filing Date 2024-12-26
First Publication Date 2025-07-10
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Ohguri, Kenichi
  • Yamaguchi, Katsuhiro
  • Yamada, Takayuki
  • Taniguchi, Yuhji
  • Ogita, Hiroshi
  • Tomita, Yasukazu
  • Shiota, Motoji
  • Kawamura, Hiroki
  • Nakashima, Kazuki

Abstract

A display device includes a display unit having flexibility and including a first film, a first display panel, a second film, a second display panel, and a heat dissipation part. The first film and the second film are bonded together around the first display panel and the second display panel.

IPC Classes  ?

  • H10K 59/80 - Constructional details
  • H10K 59/18 - Tiled displays
  • H10K 102/00 - Constructional details relating to the organic devices covered by this subclass

23.

DISPLAY DEVICE, LIGHT EMITTING DEVICE, AND LIGHTING DEVICE

      
Application Number 18850699
Status Pending
Filing Date 2022-05-13
First Publication Date 2025-07-03
Owner Sharp Display Technology Corporation (Japan)
Inventor Sakakibara, Yusuke

Abstract

A display device includes a display region including a first region including at least a part of a central portion of the display region and a second region including at least a part of end portions of the display region, a first light-emitting element provided in the first region, and a second light-emitting element provided in the second region, in which each of the first light-emitting element and the second light-emitting element includes a first electrode and a second electrode, and a nanoparticle layer positioned between the first electrode and the second electrode, the nanoparticle layer containing nanoparticles, and a concentration of halogen atoms contained in a first layer which is the nanoparticle layer of the first light-emitting element is higher than a concentration of halogen atoms contained in a second layer which is the nanoparticle layer of the second light-emitting element.

IPC Classes  ?

  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels

24.

LIGHT-EMITTING DEVICE, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING LIGHT-EMITTING DEVICE

      
Application Number JP2023047273
Publication Number 2025/141863
Status In Force
Filing Date 2023-12-28
Publication Date 2025-07-03
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Adachi, Kota
  • Sakuma, Jun
  • Asaoka, Yasushi

Abstract

The present invention comprises: a first bank (1) in which an opening (8) is formed; a first electrode (2) that overlaps the opening (8) in plan view; a first functional layer (3) that is formed above the first bank (1) and the first electrode (2) and has a flat upper surface; a first light-emitting layer (4) that is formed above the first functional layer (3); a second bank (5) that is formed above the first light-emitting layer (4) and overlaps the first bank (1) in plan view; and a second electrode (7) that is formed above the second bank (5).

IPC Classes  ?

  • H05B 33/22 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
  • H05B 33/10 - Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
  • H05B 33/12 - Light sources with substantially two-dimensional radiating surfaces
  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H05B 33/20 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
  • H10K 50/11 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 50/824 - Cathodes combined with auxiliary electrodes
  • H10K 59/122 - Pixel-defining structures or layers, e.g. banks
  • H10K 71/00 - Manufacture or treatment specially adapted for the organic devices covered by this subclass

25.

ARRAY SUBSTRATE AND DISPLAY DEVICE

      
Application Number 18953364
Status Pending
Filing Date 2024-11-20
First Publication Date 2025-07-03
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Takeuchi, Yohei
  • Kawasaki, Tatsuya
  • Hara, Kengo
  • Sugino, Masafumi
  • Imai, Hajime

Abstract

An array substrate includes a gate line, a source line crossing the gate line, a switching component disposed on a crossing portion of the gate line and the source line, a semiconductor film included in the switching component, a first insulating film disposed between a layer including the gate line and a layer including the semiconductor film, and a second insulating film disposed between a layer including the semiconductor film and a layer including the source line. The source line overlaps the gate line via the first insulating film and the second insulating film.

IPC Classes  ?

  • G02F 1/1362 - Active matrix addressed cells
  • G02F 1/1368 - Active matrix addressed cells in which the switching element is a three-electrode device
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body

26.

REFLECTIVE LIQUID CRYSTAL DISPLAY DEVICE

      
Application Number 18962098
Status Pending
Filing Date 2024-11-27
First Publication Date 2025-07-03
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Saigusa, Ryosuke
  • Usukura, Naru
  • Miyazaki, Akiko
  • Sakai, Akira
  • Kawahira, Yuichi
  • Minoura, Kiyoshi

Abstract

Provided is a reflective liquid crystal display device that can exhibit increased light use efficiency. The reflective liquid crystal display device includes a reflective liquid crystal panel and an optical element disposed on or above an observer side of the reflective liquid crystal panel and including a polarizer and a Pancharatnam-Berry phase diffraction grating. For example, the optical element may include, in order from its reflective liquid crystal panel side toward its observer side, the polarizer, a λ/4 plate, and the Pancharatnam-Berry phase diffraction grating. The Pancharatnam-Berry phase diffraction grating may include a phase difference layer that introduces a phase difference Δnd satisfying the following Formula 1 or Formula 2 to wavelengths λ of 450 nm, 550 nm, and 650 nm. Provided is a reflective liquid crystal display device that can exhibit increased light use efficiency. The reflective liquid crystal display device includes a reflective liquid crystal panel and an optical element disposed on or above an observer side of the reflective liquid crystal panel and including a polarizer and a Pancharatnam-Berry phase diffraction grating. For example, the optical element may include, in order from its reflective liquid crystal panel side toward its observer side, the polarizer, a λ/4 plate, and the Pancharatnam-Berry phase diffraction grating. The Pancharatnam-Berry phase diffraction grating may include a phase difference layer that introduces a phase difference Δnd satisfying the following Formula 1 or Formula 2 to wavelengths λ of 450 nm, 550 nm, and 650 nm. sin 4 ( Δ ⁢ nd ⁢ π λ ) > 1 4 ⁢ π ( Formula ⁢ 1 ) sin 2 ( Δ ⁢ nd ⁢ π λ ) ⁢ cos 2 ⁢ ( Δ ⁢ nd ⁢ π λ ) > 1 4 ⁢ π ( Formula ⁢ 2 )

IPC Classes  ?

  • G02F 1/13363 - Birefringent elements, e.g. for optical compensation
  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors

27.

LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, AND QUANTUM DOT DISPERSION

      
Application Number JP2023047365
Publication Number 2025/141892
Status In Force
Filing Date 2023-12-29
Publication Date 2025-07-03
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Yaguchi, Yuma

Abstract

A red light-emitting element (5R) comprises a lower electrode (22), an upper electrode (25), and a red light-emitting layer (24REM) that is provided between the lower electrode (22) and the upper electrode (25), wherein the red light-emitting layer (24REM) includes quantum dots (QD), a matrix (MR), and a matrix stabilizer (8) that includes a molecular structure bonded to an element for which there is a first shielding group (7a) including a first cyclic compound and a second shielding group (7b) including a second cyclic compound.

IPC Classes  ?

  • H05B 33/20 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 59/10 - OLED displays
  • H10K 85/60 - Organic compounds having low molecular weight

28.

LIQUID CRYSTAL PANEL

      
Application Number 18956358
Status Pending
Filing Date 2024-11-22
First Publication Date 2025-06-26
Owner Sharp Display Technology Corporation (Japan)
Inventor Shimada, Shinji

Abstract

Provided is a liquid crystal panel with spacers tending not to peel off and with a high pixel aperture ratio. The liquid crystal panel includes a color filter substrate including a color filter layer and multiple spacers protruding toward a liquid crystal layer. The color filter layer includes at least a first-color filter and a second-color filter adjacent to the first-color filter in the row direction. The first-color filter includes a first continuous pattern portion disposed continuously to overlap a first subpixel group arranged in the column direction, and a first protrusion pattern portion protruding in the row direction from the first continuous pattern portion. The second-color filter includes a second continuous pattern portion disposed continuously to overlap a second subpixel group arranged in the column direction. The spacers each include a color filter stack including the first protrusion pattern portion and a part of the second continuous pattern portion.

IPC Classes  ?

  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
  • G02F 1/1339 - GasketsSpacersSealing of cells

29.

DISPLAY DEVICE

      
Application Number 18960130
Status Pending
Filing Date 2024-11-26
First Publication Date 2025-06-26
Owner Sharp Display Technology Corporation (Japan)
Inventor Morinaga, Junichi

Abstract

A display device includes a first liquid crystal panel and a second liquid crystal panel provided to oppose the first liquid crystal panel. The first liquid crystal panel includes a plurality of pixel electrodes disposed in a matrix shape along a first direction and a second direction intersecting with the first direction in a plan view, and a black matrix extended in the first direction and the second direction and provided with a plurality of openings that overlap the plurality of pixel electrodes. The second liquid crystal panel sequentially includes a first substrate, a spacer overlapping a display region in the plan view, an alignment film having been subjected to alignment treatment in a third direction different from the first and second directions in the plan view, a liquid crystal layer, and a second substrate. The spacer overlaps the black matrix in the plan view.

IPC Classes  ?

  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
  • G02F 1/1333 - Constructional arrangements
  • G02F 1/1337 - Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
  • G02F 1/1339 - GasketsSpacersSealing of cells
  • G02F 1/1343 - Electrodes
  • G02F 1/1347 - Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells

30.

DISPLAY DEVICE AND METHOD FOR MANUFACTURING SAME

      
Application Number JP2023045842
Publication Number 2025/134299
Status In Force
Filing Date 2023-12-21
Publication Date 2025-06-26
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Yamanaka Masaki
  • Okabe Tohru
  • Sakurai Takehisa
  • Okazaki Shoji
  • Saida Shinsuke
  • Kumagai Daichi

Abstract

A display device (50a) comprises: a lower wiring layer (LW); an interlayer insulating film (IL) that covers the lower wiring layer (LW); an upper wiring layer (UW); a planarization film (TH) that covers the upper wiring layer (UW); frame wiring (18h) that is in the same layer as the upper wiring layer (UW) and that is formed from the same material as the upper wiring layer (UW); and a frame-shaped slit (S) that is formed in the planarization film (TH) of a frame region (F). In the region where the slit (S) is formed, there is provided a connection wiring (16a) that is formed in the same layer as the lower wiring layer (LW) and that is formed from the same material as the lower wiring layer (LW). The frame wiring (18h) that is provided closer to a display region (D) side than the slit (S) is connected to the connection wiring (16a) via a contact hole (H17a) that is formed in the interlayer insulating film (IL).

IPC Classes  ?

  • H10K 59/131 - Interconnections, e.g. wiring lines or terminals
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 50/844 - Encapsulations
  • H10K 59/124 - Insulating layers formed between TFT elements and OLED elements
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating
  • H10K 71/60 - Forming conductive regions or layers, e.g. electrodes

31.

DISPLAY DEVICE

      
Application Number 18846808
Status Pending
Filing Date 2022-05-09
First Publication Date 2025-06-19
Owner Sharp Display Technology Corporation (Japan)
Inventor Ishida, Izumi

Abstract

A display device includes: an oxide semiconductor film; an interlayer insulating film in contact with the oxide semiconductor film; and a pixel circuit board including an effective circuit region group configured to contribute to a display, wherein the pixel circuit board has a first effective circuit region located on an outermost periphery of the effective circuit region group and including the oxide semiconductor film, the first effective circuit region has a contact hole extending through the interlayer insulating film, and a through hole extending through the interlayer insulating film is provided adjacent to the first effective circuit region outside the effective circuit region group.

IPC Classes  ?

  • H10D 86/40 - Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
  • H10D 86/60 - Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs wherein the TFTs are in active matrices

32.

DISPLAY DEVICE AND METHOD FOR MANUFACTURING SAME

      
Application Number 18852433
Status Pending
Filing Date 2022-05-18
First Publication Date 2025-06-19
Owner Sharp Display Technology Corporation (Japan)
Inventor Yamada, Takayuki

Abstract

An organic EL display device includes a polarizing plate stacked on a display panel. The display panel has a picture-frame region provided around the display region. A folding portion provided in the picture-frame region is folded about a folding axis extending in a first direction. The picture-frame region is provided with a touch panel line extending to cross the folding portion in a second direction perpendicular to the first direction. The polarizing plate is attached through a first adhesive layer to the display region. The folding portion is provided not with the polarizing plate but with the first adhesive layer to cover the touch panel line.

IPC Classes  ?

  • H10K 59/80 - Constructional details
  • H10K 59/40 - OLEDs integrated with touch screens
  • H10K 77/10 - Substrates, e.g. flexible substrates
  • H10K 102/00 - Constructional details relating to the organic devices covered by this subclass

33.

TACTILE SENSATION PRESENTING ELEMENT AND TACTILE SENSATION PRESENTING DEVICE

      
Application Number 18952037
Status Pending
Filing Date 2024-11-19
First Publication Date 2025-06-19
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Yoshida, Tomonori
  • Yanagawa, Takayuki
  • Sugita, Yasuhiro
  • Ueno, Masafumi
  • Yamamoto, Takuma

Abstract

A tactile sensation presenting element includes: a vibrator layer; and a first electrode layer and a second electrode layer located so as to oppose each other with the vibrator layer interposed therebetween. At least one of the first electrode layer and the second electrode layer includes a plurality of electrodes that are electrically independent of one another. The vibrator layer includes a plurality of unit regions, in each of which occurrence of vibration can be independently controlled. The tactile sensation presenting element further includes a plurality of protrusions located opposite to the vibrator layer relative to the first electrode layer.

IPC Classes  ?

  • B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
  • G08B 6/00 - Tactile signalling systems, e.g. personal calling systems

34.

ARRAY SUBSTRATE, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING ARRAY SUBSTRATE

      
Application Number 18956369
Status Pending
Filing Date 2024-11-22
First Publication Date 2025-06-19
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Hachiya, Atsushi
  • Saitoh, Yuhichi
  • Furukawa, Hiroaki

Abstract

There is provided an array substrate including a first electrode constituted by a first conductive film, a first insulating film disposed on a lower layer side of the first conductive film, a first conductivity-induced portion formed by making a portion of a semiconductor film disposed on a lower layer side of the first insulating film conductive, the portion not overlapping the first electrode, a second conductivity-induced portion formed by making a portion of the semiconductor film other than the first conductivity-induced portion conductive, the portion not overlapping the first electrode, a first semiconductor portion constituted by a portion of the semiconductor film overlapping the first electrode, and an intervening portion constituted by a portion of the first conductive film other than the first electrode or a part of the first insulating film, the intervening portion being disposed between the first conductivity-induced portion and the second conductivity-induced portion.

IPC Classes  ?

  • H10D 86/01 - Manufacture or treatment
  • H10D 86/40 - Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
  • H10D 86/60 - Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs wherein the TFTs are in active matrices

35.

DISPLAY DEVICE

      
Application Number JP2023045064
Publication Number 2025/126463
Status In Force
Filing Date 2023-12-15
Publication Date 2025-06-19
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Okamoto, Takuya

Abstract

A display device (101) comprises a slit (6) that is positioned between a first terminal (4) and a second terminal (5) in a plan view and that includes a first portion (10) which penetrates a display panel (1).

IPC Classes  ?

  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
  • G09F 9/00 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

36.

LIGHT-EMITTING ELEMENT

      
Application Number 18686276
Status Pending
Filing Date 2021-10-15
First Publication Date 2025-06-19
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Ueta, Yoshihiro
  • Naka, Takayuki

Abstract

A monolayer film is provided between a hole injection layer and the hole transport layer.

IPC Classes  ?

  • H10K 50/17 - Carrier injection layers
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 50/15 - Hole transporting layers
  • H10K 102/00 - Constructional details relating to the organic devices covered by this subclass

37.

LAYERED ARTICLE INCLUDING SYNTHETIC POLYMER FILM HAVING ANTIMICROBIAL AND/OR ANTIVIRAL PROPERTIES, AND METHOD FOR PRODUCING THE SAME

      
Application Number 18956348
Status Pending
Filing Date 2024-11-22
First Publication Date 2025-06-19
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Li, Hao
  • Taguchi, Tokio
  • Nakamatsu, Kenichiro

Abstract

A method for producing a layered article including a synthetic polymer film having antimicrobial and/or antiviral properties includes: preparing a layered article including a substrate and a synthetic polymer film formed on the substrate, wherein the synthetic polymer film has, on a surface thereof, a plurality of protrusions having area equivalent circle diameters in a range of more than 20 nm to less than 500 nm when the surface is viewed in a direction normal to the synthetic polymer film; and irradiating the plurality of protrusions in the layered article with light emitted from a xenon lamp such that the amount of irradiation with light in a wavelength range of 300 nm or more to 400 nm or less is 6 MJ/m2 or more.

IPC Classes  ?

  • B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
  • B32B 37/24 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
  • B32B 38/00 - Ancillary operations in connection with laminating processes

38.

LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, AND METHOD FOR PRODUCING LIGHT-EMITTING ELEMENT

      
Application Number JP2023044601
Publication Number 2025/126358
Status In Force
Filing Date 2023-12-13
Publication Date 2025-06-19
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Doe, Takahiro

Abstract

A light-emitting element (10) according to the present disclosure comprises: an anode (E1) and a cathode (E2); and a light-emitting layer (EL) that is located between the anode (E1) and the cathode (E2). The light-emitting layer (EL) includes: first quantum dots (Q1) and second quantum dots (Q2); and a matrix material (MX) that is located between the first quantum dots (Q1) and the second quantum dots (Q2). The matrix material (MX) is a p-type conductive metal oxide.

IPC Classes  ?

  • H05B 33/20 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 59/10 - OLED displays
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating

39.

METHOD OF PRODUCING PHOTOELECTRIC CONVERSION ELEMENT

      
Application Number 18932850
Status Pending
Filing Date 2024-10-31
First Publication Date 2025-06-12
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Waka, Nobuhiro
  • Ichinose, Hirokazu
  • Nishiuchi, Makoto
  • Taguchi, Tokio

Abstract

A method of producing a photoelectric conversion component includes forming a porous semiconductor layer on a first substrate, disposing dye solution including a dye with printing on the first substrate or a second substrate, s and bonding the first substrate and the second substrate.

IPC Classes  ?

  • H01G 9/00 - Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devicesProcesses of their manufacture
  • H01G 9/20 - Light-sensitive devices

40.

LIGHT EMITTING ELEMENT, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING LIGHT EMITTING ELEMENT

      
Application Number JP2023043575
Publication Number 2025/120759
Status In Force
Filing Date 2023-12-06
Publication Date 2025-06-12
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Yamamoto, Satoru
  • Ueta, Yoshihiro

Abstract

A light emitting element (2) is provided with a light emitting layer (23) disposed between a first electrode (21) and a second electrode (25). The light emitting layer includes a quantum dot structure (40) which includes quantum dots (30) and an adduct (31) positioned around the quantum dots. In a cross-section of the light emitting layer, the concentration of halogen atoms in a region which includes a second straight line is 1 atm% or more, the second straight line being parallel to a first straight line and having a distance equal to or more than a half of an average particle diameter of the quantum dots from the first straight line, the first straight line passing through a plurality of quantum dots in the light emitting layer. Alternatively, the light emitting layer includes a first light emitting layer (23A) and a second light emitting layer (23B) which include a plurality of quantum dot structures, and in a cross-section of the light emitting layer, the concentration of halogen atoms in a region which includes a fifth straight line is 1 atm% or more, the fifth straight line equally dividing the space between a third straight line and a fourth straight line, the third straight line passing through a plurality of quantum dots in the first light emitting layer, and the fourth straight line being parallel to the third straight line and passing through a plurality of quantum dots in the second light emitting layer. Alternatively, the concentration of halogen atoms in the light emitting layer is 2 atm% or more.

IPC Classes  ?

  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H10K 59/10 - OLED displays
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating

41.

ACTIVE MATRIX SUBSTRATE, IN-CELL TOUCH PANEL, AND DISPLAY DEVICE

      
Application Number 18922634
Status Pending
Filing Date 2024-10-22
First Publication Date 2025-06-12
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Yoshino, Hikaru
  • Kamitani, Shingo
  • Morinaga, Junichi

Abstract

An active matrix substrate includes a plurality of source lines and a plurality of touch detection lines. Each of the plurality of touch detection lines includes a first portion and a second portion. The first portion extends along any one of the source lines in such a position as to overlap the source line. The second portion is placed in such a position as not to overlap the plurality of source lines. The second portions of adjacent touch detection lines are alternately arrayed side by side in a direction extending along the source line.

IPC Classes  ?

  • G02F 1/1333 - Constructional arrangements
  • G02F 1/1343 - Electrodes
  • G02F 1/1362 - Active matrix addressed cells
  • G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
  • G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body

42.

LIQUID CRYSTAL DISPLAY DEVICE

      
Application Number 18931313
Status Pending
Filing Date 2024-10-30
First Publication Date 2025-06-12
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Sasaki, Takahiro
  • Hakoi, Hiroyuki
  • Kanashima, Atsuko
  • Satoh, Takashi

Abstract

A pixel electrode of a liquid crystal display device includes at least one unit pixel electrode on which a liquid crystal domain is formed, and each pixel includes a unit pixel corresponding to the unit pixel electrode. The unit pixel includes a reflective region and a transmissive region smaller than the reflective region. An outer edge of the unit pixel electrode includes a first and a second electrode sides. The liquid crystal layer is a negative type, and a distance from the second electrode side to the transmissive region is smaller than a distance from the first electrode side to the transmissive region, or the liquid crystal layer is a positive type, and a distance from the first electrode side to the transmissive region is smaller than a distance from the second electrode side to the transmissive region.

IPC Classes  ?

  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
  • G02F 1/1343 - Electrodes

43.

LIGHTING DEVICE AND DISPLAY DEVICE

      
Application Number 18947712
Status Pending
Filing Date 2024-11-14
First Publication Date 2025-06-12
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Takahashi, Nobuyuki
  • Nakajima, Nobuhisa
  • Tanabe, Takayoshi

Abstract

A lighting device comprises a light source; and a reflector disposed so as to surround the light source around an axis extending in a first direction, and configured to reflect outgoing light of the light source toward the first direction, wherein the light source includes a first light source element, and a second light source element, and the first and second light source elements are arranged in the first direction in a stated order.

IPC Classes  ?

44.

LIGHT EMITTING ELEMENT, DISPLAY DEVICE, AND NANOPARTICLE DISPERSION LIQUID

      
Application Number 18836879
Status Pending
Filing Date 2023-03-30
First Publication Date 2025-06-05
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Naka, Takayuki
  • Maruhashi, Kazuki
  • Fukunari, Yuki

Abstract

A light-emitting element includes an anode and a cathode, a light-emitting layer positioned between the anode and the cathode, and a charge function layer positioned between the anode and the light-emitting layer and including a nanoparticle including a metal atom, in which the charge function layer includes an organic molecule including a first functional group capable of bonding to the nanoparticle, a second functional group having a hole transport property, and a hydrocarbon group having 1 to 4 carbon atoms.

IPC Classes  ?

  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 50/15 - Hole transporting layers
  • H10K 50/17 - Carrier injection layers
  • H10K 85/30 - Coordination compounds

45.

LIGHT-EMITTING DEVICE AND MANUFACTURING METHOD THEREFOR

      
Application Number 18861994
Status Pending
Filing Date 2022-06-30
First Publication Date 2025-06-05
Owner Sharp Display Technology Corporation (Japan)
Inventor Utsumi, Hisayuki

Abstract

A light-emitting device includes a substrate, at least one light-emitting element provided on the substrate, a cover member that covers the at least one light-emitting element, and an adhesive layer that is provided between the substrate and the cover member, surrounds the light-emitting element, and bonds a peripheral portion of the cover member to the substrate. The adhesive layer contains a curable adhesive, a spacer, and an oxygen adsorbent.

IPC Classes  ?

  • H10K 50/842 - Containers
  • C09J 11/06 - Non-macromolecular additives organic
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots

46.

DISPLAY DEVICE

      
Application Number 18930924
Status Pending
Filing Date 2024-10-29
First Publication Date 2025-06-05
Owner Sharp Display Technology Corporation (Japan)
Inventor Fukaya, Tetsuo

Abstract

Provided is a display device that can exhibit, with a simple structure and a simple control mechanism, improved display quality as both a non-luminous type display device and a self-luminous type display device. The display device includes a display unit, and a light control unit disposed adjacent to a light emitting surface side of the display unit, the light control unit exhibiting a higher visible light transmittance as an intensity of visible light incident from the display unit increases.

IPC Classes  ?

  • G02F 1/133 - Constructional arrangementsOperation of liquid crystal cellsCircuit arrangements
  • G02F 1/00 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics
  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
  • G02F 1/13357 - Illuminating devices
  • G02F 1/1365 - Active matrix addressed cells in which the switching element is a two-electrode device
  • G02F 1/1368 - Active matrix addressed cells in which the switching element is a three-electrode device
  • H10K 59/50 - OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements

47.

DISPLAY DEVICE

      
Application Number 18935465
Status Pending
Filing Date 2024-11-02
First Publication Date 2025-06-05
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Ina, Keiichi
  • Satoh, Takashi

Abstract

A display device includes a switching component, a first electrode connected to the switching component, a first line connected to the switching component and included in a lower layer than the first electrode, a second electrode included in an upper layer than the first line and including a reflection layer that reflects light and has an uneven surface, a third electrode included in a layer lower than the first electrode and upper than the first line and disposed to overlap at least the first electrode and the first line and having a common potential, a first insulating film disposed between the first electrode and the third electrode, and a second insulating film included in a layer upper than the first line and lower than the third electrode and having a thickness greater than a thickness of the first insulating film.

IPC Classes  ?

  • G02F 1/1362 - Active matrix addressed cells
  • G02F 1/1368 - Active matrix addressed cells in which the switching element is a three-electrode device
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body

48.

TOUCH PANEL DISPLAY DEVICE

      
Application Number 18938490
Status Pending
Filing Date 2024-11-06
First Publication Date 2025-06-05
Owner Sharp Display Technology Corporation (Japan)
Inventor Hata, Masayuki

Abstract

A touch panel display device includes: a first substrate having a switching element and a pixel electrode; a second substrate having a conductive layer; a display layer sandwiched between the first substrate and the second substrate; and a switch wire switchable between: a first state in which the conductive layer functions as a sensor electrode that detects variations in capacitance because of a touch input; and a second state in which the conductive layer functions as a counter electrode that generates a display drive voltage between the conductive layer and a pixel electrode.

IPC Classes  ?

  • G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

49.

LIGHT-EMITTING ELEMENT, PRODUCTION METHOD THEREFOR, AND DISPLAY DEVICE

      
Application Number JP2023043083
Publication Number 2025/115209
Status In Force
Filing Date 2023-12-01
Publication Date 2025-06-05
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Tsukamoto, Yuto
  • Umeda, Tokiyoshi
  • Jo, Tomoaki

Abstract

This invention achieves control of a wavelength of light emitted from a light-emitting element with a simple configuration between electrode layers in the light-emitting element. This light-emitting element (1) is configured such that a first electrode layer (11), a light-emitting function layer (10), and a second electrode layer (14) are laid on one another in this order. The light-emitting function layer (10) contains a refractive index change material and expresses a specific refractive index determined according to an optical path length of light emitted from the light-emitting function layer (10) in the light-emitting element (1) and the wavelength of light emitted from the light-emitting element (1).

IPC Classes  ?

  • H10K 50/852 - Arrangements for extracting light from the devices comprising a resonant cavity structure, e.g. Bragg reflector pair
  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H05B 33/22 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 50/16 - Electron transporting layers
  • H10K 50/805 - Electrodes
  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
  • H10K 59/38 - Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating
  • H10K 71/20 - Changing the shape of the active layer in the devices, e.g. patterning
  • H10K 102/10 - Transparent electrodes, e.g. using graphene
  • H10K 102/20 - Metallic electrodes, e.g. using a stack of layers

50.

LIGHT-EMITTING ELEMENT AND DISPLAY DEVICE

      
Application Number JP2023041976
Publication Number 2025/109712
Status In Force
Filing Date 2023-11-22
Publication Date 2025-05-30
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Sakakibara, Yusuke

Abstract

A light-emitting element (2) comprises a light-emitting layer (23) positioned between an anode (21) and a cathode (25). The light-emitting layer contains quantum dots (30) and an adduct (40) containing a metal oxide. In a cross-section parallel to the film thickness direction (DT) of the light-emitting layer, the ratio of the cross-sectional area of one quantum dot to the minimum value of the area of a square that contains therein the entirety of the cross-section of that quantum dot is referred to as the first ratio of that quantum dot. In said cross-section, the ratio of the cross-sectional area of one quantum dot to the minimum value of the area of an equilateral triangle that contains therein the entirety of the cross-section of that quantum dot is referred to as the second ratio of that quantum dot. Of quantum dots in said cross-section, the total of the proportion of first quantum dots (31) for which the first ratio is not less than 0.83 and the proportion of second quantum dots for which the second ratio is not less than 0.73 is not less than 50%.

IPC Classes  ?

  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 59/10 - OLED displays

51.

IN-CELL TOUCH PANEL AND CONTROL METHOD THEREOF

      
Application Number 18914479
Status Pending
Filing Date 2024-10-14
First Publication Date 2025-05-22
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Banchi, Takahiro
  • Iwamoto, Akihisa

Abstract

An in-cell touch panel includes a first scanning line driving circuit that supplies a display driving signal to a first scanning line group among multiple scanning lines; a second scanning line driving circuit that supplies a display driving signal to a second scanning line group among the scanning lines; a touch detection circuit that detects a touch by a pointer by acquiring a detection signal from at least a subset among multiple touch detection electrodes; and a control circuit. The control circuit performs a first scanning operation to supply the display driving signal to the first scanning line group, a touch detection operation after the first scanning operation to detect the touch with the touch detection circuit, a second scanning operation to supply the display driving signal to the second scanning line group, and the touch detection operation after the second scanning operation.

IPC Classes  ?

  • G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
  • G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals

52.

LIGHTING DEVICE

      
Application Number 18915545
Status Pending
Filing Date 2024-10-15
First Publication Date 2025-05-22
Owner Sharp Display Technology Corporation (Japan)
Inventor Kito, Hiroyuki

Abstract

A lighting device includes a first light emitting element, a second light emitting element, and a driving circuit driving the first light emitting element and the second light emitting element. The driving circuit includes a current supply supplying currents to the first light emitting element and the second light emitting element, a first current controller controlling a magnitude of a first current supplied from the current supply to the first light emitting element, and a second current controller controlling a magnitude of a second current supplied from the current supply to the second light emitting element.

IPC Classes  ?

  • H05B 45/20 - Controlling the colour of the light
  • H05B 45/345 - Current stabilisationMaintaining constant current

53.

DISPLAY DEVICE

      
Application Number JP2023040733
Publication Number 2025/104776
Status In Force
Filing Date 2023-11-13
Publication Date 2025-05-22
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Kitoh Kenichi

Abstract

A bend section (B) is provided with a resin filling film (8) so as to fill a first slit (Sa) formed in an inorganic insulating film of a TFT layer. A plurality of routing wires (18j) are provided on the resin filling film (8). A protective resin film (19d) is provided so as to cover the routing wires (18j). First, second, and third inorganic interlayer films (51a, 53a, 55a) of a touch panel layer are provided with a second slit (Sb) such that the surface of the protective resin film (19d) is exposed at the bend section (B). In the second slit (Sb), an end surface of the first inorganic interlayer film (51a) protrudes beyond an end surface of the second inorganic interlayer film (53a).

IPC Classes  ?

  • H10K 59/40 - OLEDs integrated with touch screens
  • H10K 50/12 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants
  • H10K 50/844 - Encapsulations
  • H10K 59/131 - Interconnections, e.g. wiring lines or terminals
  • H10K 59/82 - Interconnections, e.g. terminals
  • H10K 77/10 - Substrates, e.g. flexible substrates

54.

LIGHT-EMITTING ELEMENT, METHOD AND APPARATUS FOR PRODUCING LIGHT-EMITTING ELEMENT, AND DISPLAY DEVICE

      
Application Number 18728483
Status Pending
Filing Date 2022-03-23
First Publication Date 2025-05-15
Owner SHARP DISPLAY TECHNOLOGY CORPORAION (Japan)
Inventor Maruhashi, Kazuki

Abstract

A light-emitting element is provided with the following: a first electrode and a second electrode; and a quantum dot layer disposed between the first electrode and the second electrode, and including first quantum dots. The quantum dot layer includes a space absent from the first quantum dots penetrating the quantum dot layer in a thickness direction of the quantum dot layer. The space contains second quantum dots having a smaller particle diameter than the first quantum dots.

IPC Classes  ?

  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 71/15 - Deposition of organic active material using liquid deposition, e.g. spin coating characterised by the solvent used
  • H10K 101/30 - Highest occupied molecular orbital [HOMO], lowest unoccupied molecular orbital [LUMO] or Fermi energy values

55.

DISPLAY DEVICE

      
Application Number 18911422
Status Pending
Filing Date 2024-10-10
First Publication Date 2025-05-15
Owner Sharp Display Technology Corporation (Japan)
Inventor Tsubotani, Masashi

Abstract

A display device includes a display panel including a liquid crystal panel and a backlight disposed behind the liquid crystal panel, and a controller configured to control luminance of the backlight. The controller is configured to increase or decrease the luminance of the backlight at a time of switching a refresh rate when an image is displayed on the display panel in accordance with an image signal in such a manner that a change in luminance of the display panel before and after the switching with respect to an image signal having the same gray scale falls within a predetermined range.

IPC Classes  ?

  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals

56.

LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD FOR THE SAME

      
Application Number 18933067
Status Pending
Filing Date 2024-10-31
First Publication Date 2025-05-15
Owner Sharp Display Technology Corporation (Japan)
Inventor Saitoh, Kohji

Abstract

A common electrode driver includes an operational amplifier, a resistor, one end of which is connected to an inverting input terminal of the operational amplifier and the other end of which is connected to an output terminal of the operational amplifier, and an adjustment circuit that is configured to be able to adjust an internal combined resistance value in accordance with an applied polarity inversion driving method. The combined resistance value obtained when a one-column inversion driving method is applied is caused to be smaller than the combined resistance value obtained when a two-column inversion driving method is applied.

IPC Classes  ?

  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals

57.

LIGHT-EMITTING ELEMENT, METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING DISPLAY DEVICE

      
Application Number JP2023039842
Publication Number 2025/099795
Status In Force
Filing Date 2023-11-06
Publication Date 2025-05-15
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Qu, Yang
  • Kitagawa, Makoto

Abstract

A red light-emitting element (5R) includes: a first electrode (22); a second electrode (25), which is a higher layer than the first electrode (22); a red light-emitting layer (24REM) provided between the first electrode (22) and the second electrode (25); an electron transport layer (24ET) which contains metal oxide particles and which is provided between the red light-emitting layer (24REM) and the second electrode (25); and a modified protective layer (24MP) provided between the red light-emitting layer (24REM) and the electron transport layer (24ET) so as to be in contact with each of the red light-emitting layer (24REM) and the electron transport layer (24ET), wherein the modified protective layer (24MP) contains a cationic polymerization curing resin including one or more bonds from among amino, ester, and ether bonds.

IPC Classes  ?

  • H10K 50/10 - OLEDs or polymer light-emitting diodes [PLED]
  • H10K 50/15 - Hole transporting layers
  • H10K 50/16 - Electron transporting layers
  • H10K 59/10 - OLED displays
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating
  • H10K 85/10 - Organic polymers or oligomers

58.

LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT

      
Application Number 18833624
Status Pending
Filing Date 2022-03-29
First Publication Date 2025-05-15
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Ueda, Masaya
  • Yamamoto, Satoru
  • Yamamoto, Masaki
  • Ryohwa, Tatsuya
  • Izumi, Makoto

Abstract

A light-emitting element includes a first electrode, a second electrode, and a light-emitting layer located between the first electrode and the second electrode, in which the light-emitting layer includes a first nanoparticle group including a first nanoparticle and spreading in a layer shape, a first quantum dots located between the first electrode and the first nanoparticle group and a second quantum dots located between the second electrode and the first nanoparticle group.

IPC Classes  ?

  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 101/00 - Properties of the organic materials covered by group

59.

ARRAY SUBSTRATE AND DISPLAY PANEL

      
Application Number 18920057
Status Pending
Filing Date 2024-10-18
First Publication Date 2025-05-15
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Shinohara, Takushi
  • Saitoh, Yuhichi

Abstract

An array substrate includes a first TFT that includes a first insulation film, a first semiconductor film in a layer upper than the first insulation film, a second insulation film in a layer upper than the first semiconductor film, a first gate electrode in a layer upper than the second insulation film and overlapping the first semiconductor film, a third insulation film in a layer upper than the first gate electrode, a first source electrode and a first drain electrode that are portions of a metal film in a layer upper than the third insulation film and connected to the first semiconductor film via first contact holes in the third insulation film, and an auxiliary film made of non-metal material and in a layer upper or lower than the first semiconductor film to overlap at least lower surfaces of the first source electrode and the first drain electrode.

IPC Classes  ?

  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
  • G02F 1/1368 - Active matrix addressed cells in which the switching element is a three-electrode device

60.

FOLDABLE DISPLAY

      
Application Number JP2023040369
Publication Number 2025/099899
Status In Force
Filing Date 2023-11-09
Publication Date 2025-05-15
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Miyazaki, Shinichi

Abstract

A foldable display (1) according to the present invention includes a flexible display portion (30), a flexible functional layer (13), and a flexible support layer (12). The flexible functional layer (13) includes a flexible cover (9) and a touch panel (39a). The flexible support layer (12) includes a first support plate (31), a second support plate (32), a first adhesive layer (33) and a second adhesive layer (34). The storage elastic modulus of the second adhesive layer (34) is 3.5 × 10 4Pa or more and 4.5 × 10 4 Pa or less. The storage elastic modulus of the first adhesive layer (33) is greater than the storage elastic modulus of the second adhesive layer (34).

IPC Classes  ?

  • G09F 9/00 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

61.

ANTI-FOG SHEET STRUCTURE AND HELMET

      
Application Number 18911418
Status Pending
Filing Date 2024-10-10
First Publication Date 2025-05-08
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Nakamatsu, Kenichiro
  • Sugine, Mitsuaki
  • Hashii, Hideya
  • Taguchi, Tokio

Abstract

An anti-fog sheet structure includes: a substrate made of polycarbonate, a first synthetic polymer film formed on a first main surface side of the substrate, and a second synthetic polymer film formed on a second main surface side, wherein the first synthetic polymer film has, on its surface, a plurality of first bumps having an equivalent circular area diameter Dp1 in the range of more than 50 nm and less than 500 nm, the second synthetic polymer film has, on its surface, a plurality of second bumps having an equivalent circular area diameter Dp2 in the range of more than 20 nm and less than 500 nm, and the first synthetic polymer film is formed from a cured product of a photocurable resin containing 30 mass % or more of ethoxylated pentaerythritol tetraacrylate.

IPC Classes  ?

  • C09D 5/16 - Anti-fouling paintsUnderwater paints
  • A42B 3/04 - Parts, details or accessories of helmets
  • C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
  • C09D 133/14 - Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
  • C09D 135/02 - Homopolymers or copolymers of esters

62.

DISPLAY DEVICE PRODUCTION METHOD AND DISPLAY DEVICE

      
Application Number 18837680
Status Pending
Filing Date 2022-04-20
First Publication Date 2025-05-08
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Asaoka, Yasushi
  • Kida, Sentaro
  • Adachi, Takahiro

Abstract

A display device includes a first light-emitting layer formed continuously over a plurality of first pixels, and a second light-emitting layer formed continuously over a plurality of second pixels and not overlapping the first light-emitting layer in a plan view. The second light-emitting layer includes a solution drop material, and the first light-emitting layer is formed overlapping a part of an outer peripheral portion of each pixel in a plan view.

IPC Classes  ?

  • H10K 59/12 - Active-matrix OLED [AMOLED] displays
  • H10K 59/122 - Pixel-defining structures or layers, e.g. banks
  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating

63.

DISPLAY DEVICE

      
Application Number 18838165
Status Pending
Filing Date 2022-04-19
First Publication Date 2025-05-08
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Shinada, Kei
  • Takahashi, Kazuki
  • Nakamura, Kazuo
  • Tanaka, Noriyuki

Abstract

A display device includes a plurality of subpixels that include pixel circuits respectively including light-emitting elements, a display region that includes the plurality of subpixels, a frame region that is provided outside the display region, first power supply voltage wiring lines for supplying a high potential side power supply to the pixel circuits, second power supply voltage wiring lines for supplying a low potential side power supply to the pixel circuits, one or more adjustment circuits each of which includes a switching element and an adjustment element and is connected to the first power supply voltage wiring lines and the second power supply voltage wiring lines, and a control circuit that controls a current value of the adjustment element in accordance with image data.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

64.

DISPLAY DEVICE

      
Application Number 18913037
Status Pending
Filing Date 2024-10-11
First Publication Date 2025-05-08
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Hara, Kengo
  • Daitoh, Tohru
  • Hara, Yoshihito
  • Nishimura, Jun
  • Takeuchi, Yohei

Abstract

A display device includes: a display panel including a HIGH power supply line and a LOW power supply line; and a scan signal line drive circuit including a unit circuit, wherein the unit circuit includes: a SET terminal; a RESET terminal; an output terminal; a first thin film transistor; a second thin film transistor including a second semiconductor layer, a second gate electrode, a second source electrode, and a second drain electrode, the second gate electrode being electrically connected to the SET terminal, one of the second source electrode and the second drain electrode being electrically connected to an internal node; and a third thin film transistor, the second gate electrode is an upper gate electrode, another one of the second source electrode and the second drain electrode is electrically connected to the HIGH power supply line, and the second thin film transistor further includes a lower gate electrode.

IPC Classes  ?

  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
  • G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

65.

OPTICAL SYSTEM, DISPLAY DEVICE, AND HEAD-MOUNTED DEVICE

      
Application Number 18890907
Status Pending
Filing Date 2024-09-20
First Publication Date 2025-05-01
Owner Sharp Display Technology Corporation (Japan)
Inventor Usukura, Naru

Abstract

An optical system includes a half mirror; a first at least one optical element including a first film-shaped optical element to be attached to a first plane; a second at least one optical element including a second film-shaped optical element to be attached to a second plane, disposed at a position symmetric to a position at which the first at least one optical element is disposed with respect to the half mirror, and having a shape symmetric to a shape of the first at least one optical element with respect to the half mirror; and a convex lens.

IPC Classes  ?

66.

DISPLAY DEVICE

      
Application Number 18897147
Status Pending
Filing Date 2024-09-26
First Publication Date 2025-05-01
Owner Sharp Display Technology Corporation (Japan)
Inventor Horibata, Kohei

Abstract

A display device includes a backlight, a display panel that displays an image by transmitting light from the backlight, and a control unit. In a case where a frame frequency of an image that is displayed on the display panel is a first frequency, the control unit causes the backlight to emit light in a first amount of emitted light, and in a case where the frame frequency is a second frequency that is lower than the first frequency, the control unit causes the backlight to emit light in a second amount of emitted light that is larger than the first amount of emitted light.

IPC Classes  ?

  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source

67.

LIQUID CRYSTAL DISPLAY DEVICE

      
Application Number 18899016
Status Pending
Filing Date 2024-09-27
First Publication Date 2025-05-01
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Terashita, Shinichi
  • Watanabe, Kouichi

Abstract

Provided is a liquid crystal display device with sufficiently reduced or prevented alignment defect generation and useful as an in-cell touch panel capable of providing display in the reflective mode. The liquid crystal display device includes first and second substrates and a liquid crystal layer. The first substrate includes a reflective layer reflecting light, first and second electrodes capable of generating a transverse electric field in the liquid crystal layer, and a first horizontal alignment film. At least one of the first electrode or the second electrode includes strip portions and a slit between adjacent two strip portions among the strip portions. The second substrate includes a second horizontal alignment film in contact with the liquid crystal layer. The liquid crystal layer includes liquid crystal molecules having a positive anisotropy of dielectric constant and is in a twist alignment during no voltage application.

IPC Classes  ?

  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
  • G02F 1/1333 - Constructional arrangements
  • G02F 1/1343 - Electrodes

68.

PHOTOELECTRIC CONVERSION PANEL, X-RAY IMAGE CAPTURING PANEL, AND CONTROL METHOD OF PHOTOELECTRIC CONVERSION PANEL

      
Application Number 18909310
Status Pending
Filing Date 2024-10-08
First Publication Date 2025-05-01
Owner Sharp Display Technology Corporation (Japan)
Inventor Matsubara, Kunio

Abstract

A photoelectric conversion panel accumulates charge in a capacitive element during a period in which a photodiode is irradiated by light, by conducting electricity to a first transistor in a state in which a second transistor is interrupted and also in which a third transistor is interrupted, reads the charge accumulated in the capacitive element during a read period, by conducting electricity to the second transistor in a state in which the first transistor is interrupted, and continuously resets the photodiode during a period other than the period in which the photodiode is irradiated by light, by conducting electricity to the third transistor in a state in which the first transistor is interrupted.

IPC Classes  ?

  • G01T 1/20 - Measuring radiation intensity with scintillation detectors

69.

DISPLAY DEVICE

      
Application Number 18911845
Status Pending
Filing Date 2024-10-10
First Publication Date 2025-05-01
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Noma, Mikihiro
  • Hata, Masayuki
  • Kira, Takatoshi

Abstract

A display device includes a first substrate having a first surface defined as a display surface and a second surface that is an opposite surface of the first surface, a second substrate disposed opposite the second surface of the first substrate, and a conductive film disposed on the second surface of the first substrate. The display surface is divided into a display area displaying an image and a non-display area displaying no image. The conductive film is disposed to overlap at least the display area and includes synthetic resin material having light transmissive properties.

IPC Classes  ?

70.

LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT

      
Application Number JP2023038135
Publication Number 2025/088660
Status In Force
Filing Date 2023-10-23
Publication Date 2025-05-01
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Sakakibara, Yusuke

Abstract

A light-emitting element (2) comprises an emissive layer (23) located between an anode (21) and a cathode (25). The emissive layer contains a plurality of quantum dots (30) and an inorganic matrix (31) which fills the space in between the plurality of quantum dots and which contains a metal oxide. The inorganic matrix includes a second part (42) and a first part (41) containing the metal oxide. The ratio of oxygen atoms to metal atoms in the second part is lower than the ratio of oxygen atoms to metal atoms in the first part, and is equal to or higher than the ratio of oxygen atoms to metal atoms in metal oxides that are stoichiometric.

IPC Classes  ?

  • H05B 33/20 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
  • H05B 33/10 - Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 59/10 - OLED displays
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating

71.

VAPOR DEPOSITION DEVICE AND PRODUCTION METHOD FOR DISPLAY DEVICE

      
Application Number JP2023038171
Publication Number 2025/088667
Status In Force
Filing Date 2023-10-23
Publication Date 2025-05-01
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Inuzuka, Masahiro
  • Esumi, Shinichi
  • Suzuki, Hideyuki

Abstract

A vapor deposition device (1) is provided with a touch plate (4) and a touch plate control unit. The touch plate presses a vapor deposition target (X) against a vapor deposition mask (3) from the side opposite to a vapor deposition source (2). The touch plate control unit controls the position of the touch plate in a first direction (D1) from the vapor deposition target to the vapor deposition mask. The touch plate includes a first touch plate (41) that overlaps a first region (X1) of the vapor deposition target, and a second touch plate (42) that overlaps a second region (X2) of the vapor deposition target. The touch plate control unit individually controls the positions of the first touch plate and the second touch plate.

IPC Classes  ?

72.

METHOD FOR PRODUCING NANOPARTICLE DISPERSION LIQUID, METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT, AND NANOPARTICLE DISPERSION LIQUID

      
Application Number 18835848
Status Pending
Filing Date 2022-04-06
First Publication Date 2025-05-01
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Naka, Takayuki
  • Maruhashi, Kazuki
  • Fukunari, Yuki

Abstract

A light-emitting element includes an anode and a cathode, a light-emitting layer positioned between the anode and the cathode, first and second nanoparticles positioned between the anode and the light-emitting layer and including a metal atom, and an organic molecule that has a first functional group capable of bonding to the first nanoparticle and a second functional group having a hole transport property and that is positioned between the first nanoparticle and the second nanoparticle.

IPC Classes  ?

  • H10K 50/155 - Hole transporting layers comprising dopants
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating
  • H10K 85/30 - Coordination compounds

73.

TOUCH PANEL SYSTEM AND ELECTRONIC DEVICE

      
Application Number 18890905
Status Pending
Filing Date 2024-09-20
First Publication Date 2025-05-01
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Kida, Kazutoshi
  • Sugita, Yasuhiro
  • Maruyama, Takenori
  • Yamamoto, Takuma
  • Yamagishi, Shinji

Abstract

A touch panel system includes a touch panel and a controller. The touch panel includes an active matrix substrate, a color filter substrate, and a liquid crystal layer located between the active matrix substrate and the color filter substrate. The active matrix substrate includes a drive electrode and a detection electrode. The drive electrode and the detection electrode are disposed on a surface of the active matrix substrate which faces the liquid crystal layer. The color filter substrate includes a conductor. The conductor is disposed on a surface of the color filter substrate which faces the liquid crystal layer. The controller is configured to supply a drive signal to the drive electrode and obtain a signal value from the detection electrode and to detect a pressing force applied to the touch panel by an indicator, based on the signal value obtained from the detection electrode.

IPC Classes  ?

  • G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
  • G02F 1/1333 - Constructional arrangements
  • G02F 1/1343 - Electrodes
  • G02F 1/1362 - Active matrix addressed cells
  • G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

74.

WIRING BOARD AND DISPLAY DEVICE

      
Application Number 18902922
Status Pending
Filing Date 2024-10-01
First Publication Date 2025-05-01
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Yamada, Yuki
  • Sawada, Hironobu
  • Akiyama, Hiroto

Abstract

A wiring board includes first lines and second lines extending along a first direction, a first electrode connected to the second lines, a third line extending along a second direction crossing the first direction, and a signal supply connected to the first lines and not connected to the second lines and the third line. At least two first lines that are arranged at an interval in the second direction and overlap at least two second lines, respectively, via an insulating film, and are defined as second line overlapping first lines. The signal supply is configured to supply a first signal to one of the second line overlapping first lines and supply a second signal having an opposite polarity from a polarity of the first signal to another one of the second line overlapping first lines. The third line is connected to the at least two second lines.

IPC Classes  ?

  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
  • G02F 1/1362 - Active matrix addressed cells
  • G02F 1/1368 - Active matrix addressed cells in which the switching element is a three-electrode device

75.

TACTILE SENSATION PRESENTING DEVICE

      
Application Number 18910229
Status Pending
Filing Date 2024-10-09
First Publication Date 2025-05-01
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Ueno, Masafumi
  • Yoshida, Tomonori
  • Yamamoto, Takuma
  • Sugita, Yasuhiro

Abstract

A tactile sensation presenting device includes: a tactile sensation presenting section having a plurality of electrodes to present a tactile sensation by electrical stimulation at a specific portion of a user; and a control section capable of controlling the tactile sensation presenting section to provide electrical stimulation using at least one of the plurality of electrodes as an anode and at least another one of the plurality of electrodes as a cathode. The control section measures a flowability of an electric current through the specific portion of the user and adjusts an execution mode of the electrical stimulation based on a result of the measurement.

IPC Classes  ?

  • G08B 6/00 - Tactile signalling systems, e.g. personal calling systems
  • A61N 1/04 - Electrodes

76.

LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT

      
Application Number JP2023038136
Publication Number 2025/088661
Status In Force
Filing Date 2023-10-23
Publication Date 2025-05-01
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Sakakibara, Yusuke
  • Ueta, Yoshihiro

Abstract

This light-emitting element (2) comprises a light-emitting layer (23) positioned between an anode (21) and a cathode (25). The light-emitting layer includes a plurality of quantum dots (30) and an inorganic matrix (31) that fills the spaces between the plurality of quantum dots and has a metal oxide. The inorganic matrix includes a first part (41) and a second part (42) each having a metal oxide. The ratio of oxygen atoms to metal atoms in the second part is higher than the ratio of oxygen atoms to metal atoms in the first part, and is equal to or less than the ratio of oxygen atoms to metal atoms in the metal oxides that are stoichiometric.

IPC Classes  ?

  • H05B 33/20 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
  • H05B 33/10 - Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 59/10 - OLED displays
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating
  • H10K 71/16 - Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering

77.

DISPLAY DEVICE AND METHOD FOR MANUFACTURING DISPLAY DEVICE

      
Application Number JP2023038292
Publication Number 2025/088684
Status In Force
Filing Date 2023-10-24
Publication Date 2025-05-01
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Hiruoka, Masaki

Abstract

A display device (100) according to the present disclosure comprises: a film substrate (FS); a light-emitting element layer (ED) that is located in a layer above the film substrate (FS) and that includes a plurality of light-emitting elements; an inorganic sealing film (K1) that covers the light-emitting element layer (ED); a plurality of pairs of banks (B1, B2) that are located, in plan view, between the outer periphery of the inorganic sealing film (K1) and the outer periphery of the film substrate (FS) and that face each other so as to be spaced apart; and a filler (FM) that is located, in plan view, between at least one of the pairs of banks (B1, B2) of the plurality of pairs of banks (B1, B2) and that contracts or expands through curing.

IPC Classes  ?

  • H10K 77/10 - Substrates, e.g. flexible substrates
  • H10K 50/84 - PassivationContainersEncapsulations
  • H10K 50/844 - Encapsulations
  • H10K 59/10 - OLED displays
  • H10K 71/00 - Manufacture or treatment specially adapted for the organic devices covered by this subclass
  • H10K 71/80 - Manufacture or treatment specially adapted for the organic devices covered by this subclass using temporary substrates

78.

LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT

      
Application Number JP2023038665
Publication Number 2025/088750
Status In Force
Filing Date 2023-10-26
Publication Date 2025-05-01
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Adachi, Takahiro
  • Sakuma, Jun
  • Asaoka, Yasushi

Abstract

A light-emitting element (10) according to an example of the present disclosure comprises: a first electrode (11); a second electrode (12) including a non-translucent conductive material with a light-transmissive thickness; and a functional layer (13) positioned between the first electrode (11) and the second electrode (12). The second electrode (12) includes a first portion (P1) and a second portion (P2) having a larger thickness than that of the first portion (P1). The functional layer (13) includes a thin film portion (Q1) positioned between the first electrode (11) and the first portion (P1), and a thick film portion (Q2) positioned between the first electrode (11) and the second portion (P2) and having a larger thickness than that of the thin film portion (Q1).

IPC Classes  ?

  • H10K 50/852 - Arrangements for extracting light from the devices comprising a resonant cavity structure, e.g. Bragg reflector pair
  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
  • H05B 33/10 - Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H05B 33/24 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers of metallic reflective layers
  • H05B 33/26 - Light sources with substantially two-dimensional radiating surfaces characterised by the composition or arrangement of the conductive material used as an electrode
  • H05B 33/28 - Light sources with substantially two-dimensional radiating surfaces characterised by the composition or arrangement of the conductive material used as an electrode of translucent electrodes
  • H10K 50/11 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 50/828 - Transparent cathodes, e.g. comprising thin metal layers
  • H10K 59/10 - OLED displays
  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
  • H10K 71/16 - Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering
  • H10K 102/10 - Transparent electrodes, e.g. using graphene

79.

LIGHT EMITTING ELEMENT

      
Application Number 18685612
Status Pending
Filing Date 2021-10-15
First Publication Date 2025-04-24
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Ueta, Yoshihiro
  • Naka, Takayuki

Abstract

A light-emitting layer includes quantum dots, a hole injection layer provided between an anode and the light-emitting layer with one face in contact with the anode includes nanoparticles, and an average particle diameter of the nanoparticles included in the hole injection layer is less than an average particle diameter of the quantum dots included in the light-emitting layer.

IPC Classes  ?

  • H10K 50/155 - Hole transporting layers comprising dopants
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 50/17 - Carrier injection layers
  • H10K 102/00 - Constructional details relating to the organic devices covered by this subclass

80.

ARRAY SUBSTRATE, DISPLAY PANEL, AND METHOD FOR MANUFACTURING ARRAY SUBSTRATE

      
Application Number 18902923
Status Pending
Filing Date 2024-10-01
First Publication Date 2025-04-24
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Kaneko, Toshihiro
  • Nakamura, Yoshinobu
  • Miyamoto, Tadayoshi

Abstract

An array substrate includes: a semiconductor film disposed on an upper-layer side of an insulating substrate; a gate insulating film disposed in a layer above the semiconductor film; a gate electrode disposed in a layer above the gate insulating film; an interlayer insulating film disposed in a layer above the gate electrode; a thin film transistor including a source electrode and a drain electrode disposed on the upper-layer side of the gate electrode via the interlayer insulating film; and a gate wiring line continuously formed with the gate electrode of the thin film transistor, wherein the gate electrode and the gate wiring line include an aluminum film, and a protective metal film made of a metal material having a melting point higher than a melting point of aluminum, and covering an entire surface of the aluminum film.

IPC Classes  ?

  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
  • G02F 1/1362 - Active matrix addressed cells
  • G02F 1/1368 - Active matrix addressed cells in which the switching element is a three-electrode device

81.

LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT

      
Application Number JP2023037315
Publication Number 2025/083742
Status In Force
Filing Date 2023-10-16
Publication Date 2025-04-24
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Yabuuchi, Yuta

Abstract

Each of a plurality of quantum dots (7) includes: a core (9); and a shell (10) that contains the core (9), has a first size (S1) in a first direction (D1), and has a second size (S2) larger than the first size (S1) in a second direction (D2) perpendicular to the first direction (D1). The band gap of a matrix member (8) is greater than or equal to the band gap of the shell (10).

IPC Classes  ?

  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H05B 33/10 - Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
  • H05B 33/20 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 59/10 - OLED displays
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating
  • H10K 71/40 - Thermal treatment, e.g. annealing in the presence of a solvent vapour

82.

DISPLAY DEVICE AND METHOD FOR MANUFACTURING DISPLAY DEVICE

      
Application Number JP2023037842
Publication Number 2025/083839
Status In Force
Filing Date 2023-10-19
Publication Date 2025-04-24
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Kida, Sentaro
  • Adachi, Takahiro
  • Asaoka, Yasushi

Abstract

A display device (1) according to the present disclosure comprises: a first electrode (E1) formed in a display region (DA); a first functional layer (F1) positioned above the first electrode (E1), the first functional layer (F1) spanning from the display region (DA) to a non-display region (NA); a first color light-emitting layer (C1) that is formed on the first functional layer (F1) and is positioned in the display region (DA); and a first dummy light-emitting layer (D1) that is formed on the first functional layer (F1) from the same material as the first color light-emitting layer (C1) and is positioned in the non-display region (NA).

IPC Classes  ?

  • H10K 59/88 - Dummy elements, i.e. elements having non-functional features
  • H05B 33/12 - Light sources with substantially two-dimensional radiating surfaces
  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 50/15 - Hole transporting layers
  • H10K 59/121 - Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
  • H10K 59/122 - Pixel-defining structures or layers, e.g. banks
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating

83.

LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, AND METHOD FOR PRODUCING LIGHT-EMITTING ELEMENT

      
Application Number JP2023037843
Publication Number 2025/083840
Status In Force
Filing Date 2023-10-19
Publication Date 2025-04-24
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Ueta, Yoshihiro
  • Sakuma, Jun

Abstract

A light-emitting element (10) according to the present disclosure comprises: a first electrode (E1); a first functional layer (F1) positioned as a layer above the first electrode (E1); a light-emitting layer (EM) positioned as a layer above the first functional layer (F1) and including a plurality of quantum dots (QD); and a second electrode (E2) positioned as a layer above the light-emitting layer (EM). A curved portion group (VG), which includes curved portions (V1, V2, V3) having a shape protruding downward, is formed in the second electrode (E2).

IPC Classes  ?

  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H05B 33/22 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
  • H05B 33/26 - Light sources with substantially two-dimensional radiating surfaces characterised by the composition or arrangement of the conductive material used as an electrode
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 50/15 - Hole transporting layers
  • H10K 50/16 - Electron transporting layers
  • H10K 50/82 - Cathodes

84.

WINDING-TYPE DISPLAY DEVICE AND METHOD FOR DETECTING LIGHT EMISSION INFORMATION OF WINDING-TYPE DISPLAY DEVICE

      
Application Number 18691654
Status Pending
Filing Date 2021-11-22
First Publication Date 2025-04-24
Owner Sharp Display Technology Corporation (Japan)
Inventor Yang, Yixin

Abstract

A winding-type display device includes a flexible display having a third surface, a protection film configured to be attached to the third surface, a winding roller for winding the display with the protection film outside, a first guide member for winding the protection film peeled from the display, and an image reading sensor disposed between the first guide member and the winding roller for detecting light emission information from the display.

IPC Classes  ?

  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
  • G09F 9/33 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
  • H10K 59/13 - Active-matrix OLED [AMOLED] displays comprising photosensors that control luminance
  • H10K 102/00 - Constructional details relating to the organic devices covered by this subclass

85.

OPTICAL ELEMENT AND DISPLAY DEVICE

      
Application Number 18897132
Status Pending
Filing Date 2024-09-26
First Publication Date 2025-04-24
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Xu, Jianeng
  • Kawahira, Yuichi
  • Hasegawa, Masahiro
  • Saigusa, Ryosuke
  • Sakai, Akira

Abstract

The optical element includes: a first polarizer; a first retardation layer; a second retardation layer; and a second polarizer. First anisotropic molecules near the first polarizer are greater in tilt angle than first anisotropic molecules near an interface with the second retardation layer, with the tilt angles of the first anisotropic molecules continuously changing in a thickness direction. Second anisotropic molecules near the second polarizer are greater in tilt angle than second anisotropic molecules near an interface with the first retardation layer, with the tilt angles of the second anisotropic molecules continuously changing in a thickness direction. Transmission axes of the first and second polarizers are parallel. Slow axes of the first and second retardation layers are parallel. The transmission axis of the first polarizer is parallel to or orthogonal to the slow axes of the first and second retardation layers.

IPC Classes  ?

  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors

86.

LIGHT-EMITTING DEVICE, DISPLAY DEVICE, AND METHOD FOR PRODUCING LIGHT-EMITTING DEVICE

      
Application Number JP2023037844
Publication Number 2025/083841
Status In Force
Filing Date 2023-10-19
Publication Date 2025-04-24
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Ueta, Yoshihiro

Abstract

A light-emitting device (40) according to the present disclosure comprises: a first electrode (E1); a first functional layer (F1) that is located in a layer above the first electrode (E1); a quantum dot layer (EM) that is located in a layer above the first functional layer (F1) and that includes quantum dots (QD) and a medium material (MX); and a second electrode (E2) that is located in a layer above the quantum dot layer (EM). The quantum dot layer (EM) includes: a first section (P1) that overlaps the first electrode (E1) in plan view; and a second section (P2) that does not overlap the first electrode (E1) in plan view and that has a quantum dot occupancy rate which is smaller than that of the first section (P1).

IPC Classes  ?

  • H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
  • H05B 33/10 - Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
  • H05B 33/22 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 50/15 - Hole transporting layers
  • H10K 71/12 - Deposition of organic active material using liquid deposition, e.g. spin coating

87.

DRIVE CIRCUIT, DISPLAY DEVICE, AND IN-CELL TOUCH PANEL DEVICE

      
Application Number 18888359
Status Pending
Filing Date 2024-09-18
First Publication Date 2025-04-17
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Kawamorita, Seiya
  • Horiuchi, Satoshi
  • Iwase, Yasuaki
  • Matsubara, Shinji

Abstract

A drive circuit comprising a plurality of stages comprises a latch circuit configured to retain an output signal inputted from a preceding stage in a suspension period in which the drive circuit is suspended and configured to supply the output signal to a succeeding stage when the suspension period ends, the latch circuit includes a signal retaining node; a first transistor including a first electrode supplied a first control signal when the suspension period ends and a first control electrode; a second output node connected to the first control electrode; and a second transistor including a second control electrode supplied a second control signal supplied after the suspension period starts, but before the first control signal is supplied to the first electrode, the second transistor electrically connects the signal retaining node and the second output node by the second control signal supplied to the second control electrode.

IPC Classes  ?

  • G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
  • G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
  • G11C 19/28 - Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements

88.

DRIVE CIRCUIT, DISPLAY DEVICE, IN-CELL TOUCH PANEL DEVICE, AND CONTROL DEVICE FOR DRIVE CIRCUIT

      
Application Number 18892844
Status Pending
Filing Date 2024-09-23
First Publication Date 2025-04-17
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Iwase, Yasuaki
  • Gyouten, Seijirou
  • Horiuchi, Satoshi
  • Matsubara, Shinji

Abstract

A drive circuit includes a plurality of stages and configured to supply a drive signal to a scanning signal line group in response to input of a plurality of clock signals. The drive circuit includes a plurality of unit circuits respectively constituting the plurality of stages, the plurality of unit circuits being configured to output the drive signal, a latch circuit provided in parallel with the plurality of unit circuits, and a connection circuit connected to an output node of the latch circuit.

IPC Classes  ?

  • G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
  • G02F 1/1333 - Constructional arrangements
  • G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals

89.

TRANSISTOR AND MANUFACTURING METHOD FOR TRANSISTOR

      
Application Number 18900603
Status Pending
Filing Date 2024-09-27
First Publication Date 2025-04-17
Owner Sharp Display Technnology Corporation (Japan)
Inventor
  • Miyamoto, Tadayoshi
  • Nakamura, Yoshinobu
  • Kaneko, Toshihiro
  • Tanaka, Sohtaroh

Abstract

A gate insulating film includes a first thick portion and a second thick portion having the same film thickness, and a third thick portion, a fourth thick portion, and a fifth thick portion all having a film thickness larger than a thickness of the first thick portion, the first thick portion and the second thick portion overlap both the first electrode and a semiconductor portion and are disposed at positions spaced apart from each other in a first direction, the third thick portion is interposed between the first thick portion and the second thick portion, and the fourth thick portion and the fifth thick portion are disposed to overlap both the semiconductor portion and both end portions of a first electrode.

IPC Classes  ?

  • H01L 29/786 - Thin-film transistors
  • G02F 1/1368 - Active matrix addressed cells in which the switching element is a three-electrode device
  • H01L 29/66 - Types of semiconductor device

90.

DISPLAY DEVICE

      
Application Number 18686488
Status Pending
Filing Date 2021-10-25
First Publication Date 2025-04-17
Owner Sharp Display Technology Corporation (Japan)
Inventor Kaneko, Toshihiro

Abstract

Each lead wiring line includes a first wiring line provided on a display region side and formed of the same material and in the same layer as a second metal layer, a second wiring line provided on a bending portion side and formed of the same material and in the same layer as the second metal layer, and a third wiring line provided between the first wiring line and the second wiring line, formed of the same material and in the same layer as the first metal layer and electrically connected to each of the first wiring line and the second wiring line via a first contact hole and a second contact hole formed in an inorganic insulating film.

IPC Classes  ?

91.

Display apparatus

      
Application Number 18891272
Grant Number 12367840
Status In Force
Filing Date 2024-09-20
First Publication Date 2025-04-17
Grant Date 2025-07-22
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Nagato, Atsunori
  • Sasaki, Takashi

Abstract

A display apparatus includes a display panel that includes a liquid-crystal panel and a backlight arranged behind the liquid-crystal panel, and a controller that controls a luminance of the backlight and a transmittance ratio of the liquid-crystal panel. The controller is configured to: when a refresh rate at which an image is displayed on the display panel is switched, vary the luminance of the backlight such that a variation of a luminance of the display panel between before and after switching of the refresh rate falls within a predetermined range; vary the transmittance ratio of the liquid-crystal panel such that the variation of the luminance of the display panel falls within the predetermined range within a time duration that lasts until the luminance of the backlight reaches a target value; and restore the original transmittance ratio of the liquid-crystal panel after elapse of the time duration.

IPC Classes  ?

  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source

92.

IMAGE PICKUP APPARATUS EQUIPPED WITH DISPLAY FUNCTION

      
Application Number 18916937
Status Pending
Filing Date 2024-10-16
First Publication Date 2025-04-17
Owner Sharp Display Technology Corporation (Japan)
Inventor Shimoshikiryoh, Fumikazu

Abstract

An image pickup apparatus equipped with a display function includes a liquid crystal panel, an infrared camera including a condenser lens and an imaging element, and a backlight disposed on a back face of the liquid crystal panel. The liquid crystal panel includes a display region including a first region and a second region located to surround the first region in a plan view, at least the imaging element of the infrared camera is disposed on a light path of light transmitted through the first region and the condenser lens, and the liquid crystal panel does not include a black matrix at least in the first region but includes color filters in the first and second regions.

IPC Classes  ?

  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
  • G02F 1/13357 - Illuminating devices
  • G02F 1/1343 - Electrodes
  • G02F 1/1362 - Active matrix addressed cells
  • G02F 1/1368 - Active matrix addressed cells in which the switching element is a three-electrode device
  • H04N 23/20 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from infrared radiation only
  • H04N 23/54 - Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
  • H04N 23/57 - Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

93.

TOUCH SENSOR AND DISPLAY DEVICE

      
Application Number 18833942
Status Pending
Filing Date 2022-03-30
First Publication Date 2025-04-10
Owner Sharp Display Technology Corporation (Japan)
Inventor Miyazaki, Shinichi

Abstract

A touch sensor includes: a first conductor including a net-like wiring line; and a second conductor adjacent to the first conductor and including a net-like wiring line. At least a part of a boundary portion between the first conductor and the second conductor extends in a first direction, and the net-like wiring line of the first conductor includes a plurality of disconnection points formed such that a disconnection edge intersects the first direction in a plan view.

IPC Classes  ?

  • G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

94.

DISPLAY DEVICE

      
Application Number JP2023035919
Publication Number 2025/074470
Status In Force
Filing Date 2023-10-02
Publication Date 2025-04-10
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Sano Masahito
  • Ito Kazuatsu
  • Aman Mehadi

Abstract

At a portion, in each sub-pixel, where a first conductor region (12aa) of a first TFT (9d) that uses polysilicon and a third conductor region (17aa) of a second TFT (9b) that uses an oxide semiconductor are electrically connected, the first conductor region (12aa) and the third conductor region (17aa) are electrically connected via a contact hole (C) formed in inorganic insulating films (13, 15) and a conductive layer (16a) provided so as to cover the contact hole (C). The peripheral length, in a plan view, of the contact hole (C) of the sub-pixels disposed along the periphery of the display region (50) is shorter than the peripheral length, in a plan view, of the contact hole (C) of the sub-pixels disposed inside the display region (50).

IPC Classes  ?

  • G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
  • H10K 77/10 - Substrates, e.g. flexible substrates
  • H10K 50/844 - Encapsulations
  • H10K 59/121 - Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
  • H10K 59/123 - Connection of the pixel electrodes to the thin film transistors [TFT]
  • H10K 59/124 - Insulating layers formed between TFT elements and OLED elements

95.

PIXEL CIRCUIT, DISPLAY DEVICE, AND METHOD FOR DRIVING SAME

      
Application Number JP2023036222
Publication Number 2025/074543
Status In Force
Filing Date 2023-10-04
Publication Date 2025-04-10
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Tanaka, Kohhei

Abstract

The present application discloses a display device that is a current-driven display device in which pause driving is performed and can display a high-definition image. In a pixel circuit 15 of an organic EL display device, a drive transistor T2 has a gate terminal connected to a source terminal thereof via a holding capacitor Cst, and connected to a data signal line Dj via a pause control transistor T1b and a write control transistor T1a in order, and has a drain terminal connected to an anode electrode of an organic EL element OL via a light emission control transistor T3, and the anode electrode is connected to an initialization voltage line Vini via an initialization transistor T4. The write control transistor T1a and the initialization transistor T4 are controlled by a scanning signal SC(i), and the pause control transistor T1b is controlled by a light emission control signal EM(i). In a non-refresh frame period, writing of data voltage to the holding capacitor Cst is suppressed by the pause control transistor T1b in an off state.

IPC Classes  ?

  • G09G 3/3233 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

96.

DISPLAY DEVICE

      
Application Number JP2023036357
Publication Number 2025/074562
Status In Force
Filing Date 2023-10-05
Publication Date 2025-04-10
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Sakuma, Jun
  • Asaoka, Yasushi

Abstract

A first light-emitting element (D1) provided in a display device (1) according to the present disclosure has a first light-emitting layer (L1) that includes a first electrode (E1) and a first light-emitting material (Q1), a first lower side metal layer (12) that is semi-light-transmitting, a first intermediate layer (14), a first upper side metal layer (16) that is semi-light-transmitting, and a first light extraction surface (S1) in this order. Formed between the first lower side metal layer (12) and the first upper side metal layer (16) is a resonance structure which has the emission peak wavelength of the first light-emitting material (Q1) and which enhances light propagating in the front direction that is orthogonal to the first light extraction surface.

IPC Classes  ?

  • H10K 50/852 - Arrangements for extracting light from the devices comprising a resonant cavity structure, e.g. Bragg reflector pair
  • G02B 5/20 - Filters
  • H10K 50/115 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising active inorganic nanostructures, e.g. luminescent quantum dots
  • H10K 50/816 - Multilayers, e.g. transparent multilayers
  • H10K 50/826 - Multilayers, e.g. opaque multilayers
  • H10K 59/35 - Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
  • H10K 59/38 - Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]

97.

CONTROL DEVICE, DISPLAY DEVICE, AND CONTROL METHOD

      
Application Number JP2023036574
Publication Number 2025/074624
Status In Force
Filing Date 2023-10-06
Publication Date 2025-04-10
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor
  • Kazemi, Reza
  • Ueno, Masafumi
  • Shiobara, Naoki
  • Moriya, Masaaki
  • Kawai, Masafumi
  • Furukawa, Hiroyuki

Abstract

A display panel according to the present invention has sub-pixels which each include: a first light-emitting element that emits first light having a first color; and a second light-emitting element that emits second light having a color of the same type as a second color. A control device according to the present invention controls the first light-emitting elements and the second light-emitting elements in accordance with the gradation ratio corresponding to the sub-pixels in input image data. The second color is the same type of color as the first color. The luminance characteristics of a first dominant wavelength, which is the dominant wavelength of the first light, are different from the luminance characteristics of a second dominant wavelength, which is the dominant wavelength of the second light. As a result of the control device controlling the first light-emitting elements and the second light-emitting elements, the combined dominant wavelength change amount, which is the amount of change in the dominant wavelength of the combined light of the first light and the second light in a prescribed gradation ratio change range, becomes smaller than at least one of the first dominant wavelength change amount when the first light is emitted only by the first light-emitting elements and the second dominant wavelength change amount when the second light is emitted only by the second light-emitting elements.

IPC Classes  ?

  • G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
  • G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix

98.

Color filter substrate, display device, and method of producing color filter substrate

      
Application Number 18792883
Grant Number 12360416
Status In Force
Filing Date 2024-08-02
First Publication Date 2025-04-10
Grant Date 2025-07-15
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Nakazawa, Makoto
  • Yoshida, Keisuke

Abstract

A color filter substrate includes first and second color filters exhibiting different colors and a light blocking portion. The light blocking portion includes a first transmissive film, a first reflective film on an upper layer side of the first transmissive film, a second transmissive film on an upper layer side of the first reflective film, and a second reflective film on an upper layer side of the second transmissive film and being thicker than the first reflective film. The first transmissive film includes a first bottom surface and a first side surface being inclined at a first angle with respect to the first bottom surface. The second reflective film includes a second bottom surface extending parallel to the first bottom surface and a second side surface being inclined at a second angle with respect to the second bottom surface. The first angle and the second angle are acute angles.

IPC Classes  ?

  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
  • G02B 27/01 - Head-up displays

99.

TRANSISTOR AND MANUFACTURING METHOD FOR TRANSISTOR

      
Application Number 18883192
Status Pending
Filing Date 2024-09-12
First Publication Date 2025-04-10
Owner Sharp Display Technology Corporation (Japan)
Inventor
  • Miyamoto, Tadayoshi
  • Nakamura, Yoshinobu
  • Kaneko, Toshihiro
  • Tanaka, Sohtaroh

Abstract

A transistor includes a semiconductor portion extending in a first direction, a first electrode extending in a second direction intersecting the first direction and is disposed overlapping a portion of the semiconductor portion, a first insulating film that is interposed between the first electrode and the semiconductor portion, a second electrode that is connected to the semiconductor portion, and a third electrode that is connected to the semiconductor portion, in which the first insulating film includes a first thick portion and a second thick portion having a film thickness greater than that of the first thick portion, at least two of the first thick portions are disposed at intervals in the second direction at positions overlapping both the first electrode and the semiconductor portion, and the second thick portion is disposed to be interposed between the two first thick portions in the second direction at a position overlapping both the first electrode and the semiconductor portion.

IPC Classes  ?

  • G02F 1/1368 - Active matrix addressed cells in which the switching element is a three-electrode device
  • G02F 1/1333 - Constructional arrangements
  • H01L 27/12 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
  • H01L 29/786 - Thin-film transistors

100.

TOUCH PANEL AND DISPLAY DEVICE

      
Application Number JP2023036096
Publication Number 2025/074511
Status In Force
Filing Date 2023-10-03
Publication Date 2025-04-10
Owner SHARP DISPLAY TECHNOLOGY CORPORATION (Japan)
Inventor Nagata, Kosuke

Abstract

A touch panel (1) comprises: a first metal layer (17); an insulating layer (18) formed so as to cover the first metal layer (17); a second metal layer (19) formed on the insulating layer (18); a first direction sensor (2) extending in an X direction and including a first mesh pattern (4) formed in the first metal layer (17); a second mesh pattern (5) and a third mesh pattern (6) formed across the first direction sensor (2); and a bridge pattern (7) formed in the second metal layer (19) for electrically connecting the second mesh pattern (5) and the third mesh pattern (6). The touch panel includes a plurality of mesh pattern pieces (16) formed in the second metal layer (19) so as to be separated from the bridge pattern (5). Each of the plurality of mesh pattern pieces (16) overlaps the first metal layer (17) in a plan view, and shields a reflected light reflected by the first metal layer (17). In a plan view seen from the second metal layer (19) side, a pattern having regularity is formed by each of the plurality of mesh pattern pieces (16) and a portion of the first metal layer (17) exposed via the insulating layer (18) between the plurality of mesh pattern pieces (16).

IPC Classes  ?

  • G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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