Various examples are provided related to active direct driving of pixels. In one example, an active direct driving matrix device includes VOLET pixels arranged to form an emissive display; bus lines including at least one VDD line routed along edges of the VOLET pixels and VDATA lines routed under the VOLET pixels, each VOLET pixel connected to a corresponding VDATA line of the VDATA lines. In another example, a method of fabricating an active direct driving matrix device includes forming a first layer of VDATA lines over a substrate; depositing a first insulating layer over the first layer of VDATA lines; forming a second layer of VDATA lines over the first insulating layer; depositing a second insulating layer over the second layer of VDATA lines; and forming VOLET pixels over the second insulating layer, each VOLET pixel electrically connected to a corresponding VDATA line.
G09G 3/3258 - 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 voltage across the light-emitting element
2.
ACTIVE DIRECT DRIVING OF PIXELS IN DISPLAY, SIGNALING AND DIGITAL SIGNAGE DEVICES
Various examples are provided related to active direct driving of pixels. In one example, an active direct driving matrix device includes VOLET pixels arranged to form an emissive display; bus lines including at least one VDD line routed along edges of the VOLET pixels and VDATA lines routed under the VOLET pixels, each VOLET pixel connected to a corresponding VDATA line of the VDATA lines. In another example, a method of fabricating an active direct driving matrix device includes forming a first layer of VDATA lines over a substrate; depositing a first insulating layer over the first layer of VDATA lines; forming a second layer of VDATA lines over the first insulating layer; depositing a second insulating layer over the second layer of VDATA lines; and forming VOLET pixels over the second insulating layer, each VOLET pixel electrically connected to a corresponding VDATA line.
G09G 3/3291 - Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
Various examples are provided related to hybrid active-passive matrix devices. In one example, an active matrix device includes an array of geometrically shaped VOLET pixels arranged to form an emissive display, where each pixel is visibly discernable to a user; and bus lines routed along edges of the geometrically shaped VOLET pixels. The bus lines include a Vdata line, a Vscan line, and a VDD line. The active matrix device can include a first region formed by the array of geometrically shaped VOLET pixels and a second region including a display panel including pixels that are visibly undiscernible to the user. The active matrix device can include a third region including one or more passive VOLET pixels, which can be larger than the geometrically shaped VOLET pixels.
G09F 9/302 - 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 characterised by the form or geometrical disposition of the individual elements
H05B 45/44 - Details of LED load circuits with an active control inside an LED matrix
F21S 41/153 - Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
G09G 3/3225 - 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
G09G 3/3266 - Details of drivers for scan electrodes
G09G 3/3275 - Details of drivers for data electrodes
4.
HYBRID ACTIVE-PASSIVE MATRIX DEVICES FOR DISPLAYS, LIGHTING AND SIGNALING
Various examples are provided related to hybrid active-passive matrix devices. In one example, an active matrix device includes an array of geometrically shaped VOLET pixels arranged to form an emissive display, where each pixel is visibly discernable to a user; and bus lines routed along edges of the geometrically shaped VOLET pixels. The bus lines include a Vdata line, a Vscan line, and a VDD line. The active matrix device can include a first region formed by the array of geometrically shaped VOLET pixels and a second region including a display panel including pixels that are visibly undiscernible to the user. The active matrix device can include a third region including one or more passive VOLET pixels, which can be larger than the geometrically shaped VOLET pixels.
The method for producing a vertical organic light-emitting transistor device includes: a step (A) in which a substrate having a main surface, on which the vertical organic light-emitting transistor device is to be formed, is prepared; a step (B) in which an organic material containing a polymer having a hydrocarbon group is applied onto the main surface of the substrate; a step (C) in which a dispersion liquid containing a dispersant and a carbon material is applied onto an organic material layer formed in the step (B); a step (D) in which a coating film formed in the step (C) is dried; and a step (E) in which after the step (D) is performed, a cleaning fluid is applied to remove the dispersant.
UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC. (USA)
MATTRIX TECHNOLOGIES, INC. (USA)
Inventor
Rinzler, Andrew Gabriel
Das, Rajib Kumar
Liu, Bo
Lemaitre, Max G.
Abstract
Various examples are provided related to electrical planarization of carbon nanotube thin films or networks. In one example, a method includes depositing one or more thin protective organic and/or inorganic layer across a nanotube film; disrupting electrical conductance of portions of the nanotube film by exposure of out-of-plane nanotubes to a planarization process that disrupts the electrical conductance through the one or more thin protective organic and/or inorganic layer; and removing the one or more thin protective organic and/or inorganic layer from the nanotube film.
A device configuration designed to mitigate display defects resulting from voltage drops in current supply lines offers a display with better display quality. The display includes: a plurality of VOLETs arranged in arrays along a first direction and a second direction; a data line supplying a voltage for controlling gate electrodes of the plurality of VOLETs; TFTs each connected between a gate electrode of each of the VOLET and the data line and controlling voltage supply to the gate electrodes of the VOLETs; a gate line connected to gate electrodes of the TFTs and transmitting a signal that controls the TFTs; a plurality of current supply lines extending along the first direction and supplying a current to each of a group of VOLETs aligned along the first direction; and an auxiliary line extending along the second direction and connecting at least two of the plurality of current supply lines.
Provided is a manufacturing method of a display including a vertical organic light-emitting transistor in which a wider light-emitting area is secured while manufacturing time and manufacturing cost are suppressed. In the manufacturing method of the display including the vertical organic light-emitting transistor, a gate electrode layer of the vertical organic light-emitting transistor and one of current-carrying electrode layers of a thin-film transistor connected to the gate electrode layer of the vertical organic light-emitting transistor are formed integrally in the same layer.
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
H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
A liquid crystal display device includes: a substrate; a plurality of vertical organic light-emitting transistors; a data line that supplies a voltage to a gate electrode of the vertical organic light-emitting transistor; a thin-film transistor that is connected between the gate electrode of each of the vertical organic light-emitting transistors and the data line and controls supply of the voltage to the gate electrode of the vertical organic light-emitting transistor; a gate line that is connected to the gate electrode of the thin-film transistor and transmits a signal for switching the thin-film transistor; and a plurality of current supply lines that are wired in a first direction outside a formation region of the vertical organic light-emitting transistor, the current supply lines being in contact with a source electrode of the vertical organic light-emitting transistor to supply a current to the vertical organic light-emitting transistor.
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
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
H01L 21/336 - Field-effect transistors with an insulated gate
H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
H05B 33/12 - Light sources with substantially two-dimensional radiating surfaces
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
A device configuration designed to mitigate display defects resulting from voltage drops in current supply lines offers a display with better display quality. The display includes: a plurality of VOLETs arranged in arrays along a first direction and a second direction; a data line supplying a voltage for controlling gate electrodes of the plurality of VOLETs; TFTs each connected between a gate electrode of each of the VOLET and the data line and controlling voltage supply to the gate electrodes of the VOLETs; a gate line connected to gate electrodes of the TFTs and transmitting a signal that controls the TFTs; a plurality of current supply lines extending along the first direction and supplying a current to each of a group of VOLETs aligned along the first direction; and an auxiliary line extending along the second direction and connecting at least two of the plurality of current supply lines.
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
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
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 3/3233 - 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
H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
H05B 33/08 - Circuit arrangements for operating electroluminescent light sources
H05B 33/12 - Light sources with substantially two-dimensional radiating surfaces
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
11.
METHOD OF DRIVING A LIGHT EMITTING DISPLAY AND DISPLAY
Provided is a method of driving a light emitting a display in which variations in image quality and brightness are suppressed despite long-term use, without adding a complicated circuit configuration. The driving a light emitting method includes a step (A) of applying a voltage based on image data to be displayed to a gate electrode of a vertical organic light emitting transistor and a step (B) of, after the step (A), applying a voltage, having a polarity opposite to that of the voltage applied to the gate electrode of the vertical organic light emitting transistor in the step (A), to the gate electrode of the vertical organic light emitting transistor based on a value of a voltage being applied to a source electrode of the vertical organic light emitting transistor.
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
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
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
H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
12.
METHOD OF COMPENSATING BRIGHTNESS OF DISPLAY AND DISPLAY
Provided is a method of compensating brightness of a display using a vertical organic light emitting transistor that suppresses variations in brightness over a long period of time and a display. This method is a method of compensating brightness of a display including a plurality of vertical organic light emitting transistors and a memory that stores characteristic information of the vertical organic light emitting transistor. This method includes a step (A) of applying a voltage for brightness inspection to a gate electrode of the vertical organic light emitting transistor to be corrected, a step (B) of measuring a current flowing through a current supply line through which the current is supplied to a source electrode of the vertical organic light emitting transistor by the application of the voltage for brightness inspection to the gate electrode of the vertical organic light emitting transistor to be corrected, and a step (C) of determining a corrected value of the voltage to be applied to the gate electrode of the vertical organic light emitting transistor based on a value of the current measured in the step (B) and the characteristic information of the vertical organic light emitting transistor stored in the memory.
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 3/3275 - Details of drivers for data electrodes
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
H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
patents
