In a first direction, a first radiator in an antenna is located in a first area, and a second radiator in the antenna is located in a second area. In a second direction, multiple radiators have a same maximum length. Each radiator has a first radiation portion, a second radiation portion, and a third radiation portion connected in sequence. The first radiation portion is located on one side of the second radiation portion towards the second area. The third radiation portion is located on one side of the second radiation portion. In the first direction, a length of the first radiation portion and a length of the third radiation portion are the same. The first radiator has a first radiation center, and the second radiator has a second radiation center. In the second radiator, the second radiation center is located on an axis of the second radiation portion.
A liquid crystal phase shifter and a liquid crystal antenna are provided. The liquid crystal phase shifter includes a first substrate and a second substrate oppositely disposed; a liquid crystal layer disposed between the first substrate and the second substrate; a radio frequency connector; and a driving chip. A side of the second substrate adjacent to the first substrate includes a first conductive layer connected to a constant potential; a side of the first substrate adjacent to the second substrate includes a second conductive layer including a transmission electrode; the first substrate includes a first area bonded with a circuit board; and the radio frequency connector and the driving chip are both disposed in the first area and transmit signals through the circuit board.
H01Q 15/00 - Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
H01Q 3/44 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
3.
LIQUID CRYSTAL ANTENNA, SPLICING LIQUID CRYSTAL ANTENNA AND METHOD OF FORMING LIQUID CYSTAL ANTENNA
Liquid crystal antenna, splicing liquid crystal antenna, and method of forming liquid crystal antenna are provided. The liquid crystal antenna includes support structures, liquid crystals, a first substrate and a second substrate. The first substrate and the second substrate are arranged oppositely, the support structures are arranged between the first substrate and the second substrate, the first substrate includes first metal layers arranged on a side of the first substrate facing the second substrate, the second substrate includes a second metal layer arranged on a side of the second substrate facing the first substrate. The second metal layer includes functional part and spacers, the functional parts and the first metal layers are stacked along a first direction perpendicular to the second substrate, and the functional parts at least partially overlap the first metal layers. The support structures are arranged between the spacers and the first metal layers.
Antenna and communication device are provided. The antenna includes a first substrate, a second substrate that are oppositely arranged and a dielectric function layer arranged between the first substrate and the second substrate; a ground layer, arranged on a side of the dielectric functional layer away from the first substrate; a radiation layer, arranged on a side of the dielectric functional layer away from the second substrate, and including a plurality of radiation units, a radiation unit of the plurality of radiation units including a radiation patch and a phase shifter surrounding the radiation patch, and the radiation patch being insulated from the phase shifter; and a wiring layer, arranged on a side of the dielectric functional layer away from the second substrate, including a plurality of first signal lines, and different phase shifters being electrically connected to different first signal lines.
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
A phase shifter and a wireless communication device are provided. The phase shifter includes a first substrate, a radio frequency transmission line arranged on a side of the first substrate, and a bias line connected to the radio frequency transmission line. The bias line includes a first wire and a second wire. A sheet resistance of the second wire is greater than a sheet resistance of the radio frequency transmission line. The first wire and the radio frequency transmission line are connected and form an integrated structure. A line width of the first wire is less than a line width of the radio frequency transmission line. The second wire and the first wire form a lapping region in an extension direction of the first wire. In the lapping region, the second wire is arranged on a side of the first wire away from the first substrate.
An antenna and a fabrication method of the antenna are provided. The antenna includes a plurality of sub-antennas arranged in an array. A sub-antenna of the plurality of sub-antennas includes a first substrate and a second substrate that are disposed opposite to each other, a dielectric function layer disposed between the first substrate and the second substrate, a ground metal layer disposed on a side of the first substrate facing towards the dielectric function layer, and a metal connector. The first substrate of each sub-antenna is coplanar with each other, and the second substrate of each sub-antenna is coplanar with each other. A spliced region is formed between adjacent two sub-antennas of the plurality of sub-antennas, and in the spliced region, two first substrates of the adjacent two sub-antennas are connected by the metal connector.
A light-emitting panel and a display device are provided. The light-emitting panel includes a base substrate, and a plurality of driving transistors and a plurality of light-emitting elements. One driving transistor is electrically connected to at least one light-emitting element. The plurality of light-emitting elements are arranged in an array to form one or more light-emitting element rows along a first direction and to form one or more light-emitting element columns along a second direction. In a direction parallel to a plane of the base substrate, the first direction intersects the second direction. In the direction parallel to the plane of the base substrate, a quantity of driving transistors adjacent to one light-emitting element is A, where A<2 and A is an integer.
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
Provided are a display device and a manufacturing method thereof. The display device includes a display assembly, an antenna, and a feed circuit board. At least part of the antenna is disposed on the side of the light emission surface of the display assembly. The antenna includes a radiator and a first feed structure connected to the radiator. The feed circuit board is disposed on the side of the display assembly facing away from the light emission surface. The feed circuit board includes a power division network and a second feed structure connected to the power division network. The first feed structure at least partially overlaps the second feed structure along the thickness direction of the display assembly.
H01Q 21/08 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a rectilinear path
A liquid crystal antenna is provided. The liquid crystal antenna includes a first substrate, a second substrate, a liquid crystal layer, a plurality of transmission electrodes including a first transmission electrode and a second transmission electrode, a plurality of signal lines including a first signal line and a second signal line, a plurality of signal terminals including a first signal terminal and a second signal terminal, and a ground electrode. A transmission electrode is electrically connected to a signal terminal through at least one signal line. The first transmission electrode is connected to the first signal terminal through the first signal line, and the second transmission electrode is connected to the second signal terminal through the second signal line. A resistance of the first signal line is A, and a resistance of the second signal line is B, where A/B is less than 10.
H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart
G02F 1/13 - 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 for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
Provided are a light-emitting panel and a display device. The light-emitting panel includes a base substrate, a first reflective layer and multiple light-emitting elements, and at least one second reflective portion. The first reflective layer and the multiple light-emitting elements are located on the base substrate. The first reflective layer includes a first reflective portion and multiple hollow portions. The multiple light-emitting elements are located in the multiple hollow portions. A gap exists between each of the multiple light-emitting elements in each of the multiple hollow portions and the first reflective portion. The at least one second reflective portion is located between the base substrate and the first reflective layer. In a direction perpendicular to a plane where the base substrate is located, the at least one second reflective portion covers the gap.
H01L 25/16 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices the devices being of types provided for in two or more different subclasses of , , , , or , e.g. forming hybrid circuits
H01L 33/62 - Arrangements for conducting electric current to or from the semiconductor body, e.g. leadframe, wire-bond or solder balls
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
11.
Phase shifter, fabrication method thereof, and antenna
A phase shifter, a fabrication method thereof, and an antenna are provided. The phase shifter includes a first substrate, a second substrate, a ground electrode disposed on a side of the first substrate facing towards the second substrate, a transmission electrode disposed on a side of the second substrate facing towards the first substrate, and liquid crystals filled between the first substrate and the second substrate. In a direction perpendicular to a plane of the second substrate, the transmission electrode overlaps with the ground electrode. The ground electrode is provided with a detection hollow part, and in the direction perpendicular to the plane of the second substrate, at least a part of the detection hollow part does not overlap with the transmission electrode.
H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
12.
Liquid crystal antenna and preparation method thereof
Provided are a liquid crystal antenna and a preparation method of the liquid crystal antenna. The liquid crystal antenna includes a liquid crystal cell and the liquid crystal cell includes a first substrate, a second substrate, a microstrip line, a ground metal layer, a liquid crystal layer, and frame glue. The liquid crystal antenna further includes a third substrate, a fourth substrate, and a radiation electrode. The third substrate extends beyond an edge of the first substrate. The fourth substrate extends beyond edges of the second substrate on at least two sides. A connection structure is disposed between the third substrate and the fourth substrate, and the connection structure is disposed on an outer side of the frame glue. The liquid crystal antenna and the preparation method of the liquid crystal antenna are provided to reduce preparation difficulty and improve reliability.
Provided are a liquid crystal antenna, a manufacturing method thereof and a communication device having the liquid crystal antenna. The liquid crystal antenna includes a first metal electrode, a second metal electrode, a third metal electrode, at least two oppositely arranged substrates, and a liquid crystal layer located between the two oppositely arranged substrates. The two oppositely arranged substrates each include a light transmission area. The first metal electrode, the second metal electrode and the third metal electrode within the light transmission area each are a hollowed-out structure, and the light transmission area can be used to test a cell thickness of the liquid crystal cell. Since the cell thickness can be measured, other process parameters can be matched and adjusted, so that a mass production yield of the liquid crystal antennas is improved.
G02F 1/13 - 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 for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
Embodiments of the present invention provides a phase shifter, a manufacturing method therefor, and an antenna, relating to the technical field of liquid crystal antennas, and capable of facilitating cell gap testing and optical determination for phase shifters and improving the yield. The phase shifter comprises: a first substrate and a second substrate; a ground electrode disposed on a side of the first substrate facing the second substrate; a transmission electrode disposed on a side of the second substrate facing the first substrate, the transmission electrode overlapping with the ground electrode in a direction perpendicular to a plane in which the second substrate is located; and liquid crystals filled between the first substrate and the second substrate. The ground electrode has a recessed detection portion, and in the direction perpendicular to the plane in which the second substrate is located, at least a part of the recessed detection portion does not overlap with the transmission electrode.
G02F 1/13 - 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 for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
Liquid crystal phase shifting device including protrusions formed therein, a manufacturing method thereof, and a phase shifter matrix formed by the phase shifting devices
Provided is a liquid crystal phase shifting device including: a first substrate and a second substrate that are opposite to each other, wherein first protrusions is provided on a surface of the first substrate facing towards the second substrate, second protrusions is provided on a surface of the second substrate facing towards the first substrate, and the first protrusions and the second protrusions are alternately arranged; a microstrip line provided on the surface of the first substrate facing towards the second substrate, the microstrip line covering at least part of the first protrusions; first support pads provided between the first substrate and the second substrate; a ground electrode provided on the surface of the second substrate facing towards the first substrate, the ground electrode overlapping at least part of the second protrusions; and liquid crystal molecules provided between the microstrip line and the ground electrode.
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
A phased-array antenna and a method for controlling the same are provided. The phased-array antenna includes first and second substrates between which a cavity is formed. Phase-shifting units in the cavity each includes: a power feeder located on a surface of the first substrate facing away from the second substrate and connected to a radio-frequency signal terminal, a radiator located on the surface and insulated from the power feeder, a ground electrode located on a surface of the first substrate facing towards the second substrate. The ground electrode connects to the ground signal terminal and overlaps with the power feeder and the radiator and includes a first and a second openings. A transmission electrode located on a surface of the second substrate facing the first substrate and connects to the control signal line.
H01Q 21/06 - Arrays of individually energised antenna units similarly polarised and spaced apart
H01Q 13/20 - Non-resonant leaky-waveguide or transmission-line antennas Equivalent structures causing radiation along the transmission path of a guided wave
H01Q 5/357 - Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
H01Q 5/335 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
H01Q 3/34 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means
17.
Phased-array antenna and control method of the same
The present disclosure provides a phased-array antenna and a control method thereof. The phased-array antenna includes two parallel substrates attached by sealant into a cavity filled with liquid crystals, a plurality of phase-shifting units is provided in the cavity defined. Each unit comprises: a power feeder electrically connected to a radio frequency signal terminal, a radiator electrically connected to the power feeder, a ground electrode electrically connected to a ground signal terminal but electrically insulated from the power feeder and the radiator respectively, and a driving electrode electrically connected to a control signal wire. The orthographic projections of the driving electrode, the power feeder, and the ground electrode overlap on one substrate.
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
H01Q 5/321 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
H01Q 5/335 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
H01Q 13/18 - Resonant slot antennas the slot being backed by, or formed in boundary wall of, a resonant cavity
Provided is a liquid crystal phase shifter, including a first substrate and a second substrate opposite to the first substrate; a liquid crystal layer between the first and second substrates; phase-shifting units each including a microstrip line, a phased electrode and two feed terminals, the microstrip line is located between the first substrate and the liquid crystal layer, the phased electrode is located between the second substrate and the liquid crystal layer, the two feed terminals are located at a side of the first or second substrate facing away from the other, and in a direction perpendicular to the first substrate, two ends of the microstrip line respectively overlap the two feed terminals, the phased electrode includes at least two sub-electrodes spaced apart from each other, and the microstrip line includes effective line segments respectively corresponding to each sub-electrode, and the sub-electrodes covers a corresponding effective line segment.
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
The present disclosure provides a liquid crystal phase shifting device, a manufacturing method for the liquid crystal phase shifting device, a liquid crystal phase shifter, and an antenna, aiming to achieve the better curved surface applications of the liquid crystal phase shifting device and thus increases the applications. The liquid crystal phase shifting device includes: a first flexible substrate and a second flexible substrate that are opposite to each other; a microstrip line arranged on a side of the first flexible substrate facing towards the second flexible substrate; an electrode layer arranged on a side of the second flexible substrate facing towards the first flexible substrate; and solid-state liquid crystal arranged between the microstrip line and the electrode layer. The liquid crystal phase shifting device is used for performing phase shifting on a microwave signal.
G02F 1/137 - 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 for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
20.
Liquid crystal phase shifter including a liquid crystal layer located between first and second flexible substrates, where a third flexible substrate provides a feed portion
Provided are a liquid crystal phase shifter and an antenna. The liquid crystal phase shifter includes a first substrate, a second substrate, a liquid crystal layer, and at least one phase shift unit. The first substrate includes a first flexible substrate and a first liquid crystal alignment layer located on a side of the first flexible substrate close to the second substrate. The second substrate includes a second flexible substrate and a second liquid crystal alignment layer located on a side of the second flexible substrate close to the first substrate. The phase shift unit includes a microstrip line and a phased electrode. The microstrip line is located between the first flexible substrate and the first liquid crystal alignment layer, and the phased electrode is located between the second flexible substrate and the second liquid crystal alignment layer.
G02F 1/13 - 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 for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
G02F 1/133 - Constructional arrangementsOperation of liquid crystal cellsCircuit arrangements
H01Q 3/30 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase
21.
Liquid crystal phase shifting unit, manufacturing method therefor, liquid crystal phase shifter, and antenna
Provided are a liquid crystal phase shifting unit, a method for manufacturing the same, a liquid crystal phase shifter, and an antenna, which relate to the technical field of phase shifting. A liquid crystal filling region (6) is supported steadily by a support structure (4), which increases the transmission stability of a microwave signal. A space between a first substrate (1) and a second substrate (2) of the liquid crystal phase shifting unit includes the liquid crystal filling region (6). A microstrip line (3) is provided on a surface of the first substrate (1) facing towards the second substrate (2). An orthographic projection of the microstrip line (3) on the first substrate (1) is located in the liquid crystal filling region (6). The support structure (4) is provided between the first substrate (1) and the second substrate (3) and in the liquid crystal filling region (6). The orthographic projection of the support structure (4) on the first substrate (1) does not overlap the microstrip line (3), which is used for shifting a phase of a microwave signal.
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
Embodiments of the present disclosure provide a liquid crystal phase shifter and an antenna, which relate to the field of electromagnetic waves and can adjust carrier frequencies applicable to the liquid crystal phase shifter, improving compatibility of the liquid crystal phase shifter. The liquid crystal phase shifter includes at least one phase-shifting unit. The phase-shifting unit includes a microstrip line and a phase-controlled electrode, the microstrip line includes a plurality of sub-microstrip lines, each sub-microstrip line includes two ends and a transmission portion connected between the two ends, and any two adjacent sub-microstrip lines share one end. The phase-shifting unit further includes feed terminals located on a side of the first substrate facing away from the second substrate or on a side of the second substrate facing away from the first substrate, and each of the feed terminals overlaps the corresponding end respectively.
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
Liquid crystal display panel and liquid crystal display device are provided. A liquid crystal display panel includes a first substrate, a second substrate, and a liquid crystal layer there-between. The first substrate includes a first base substrate, and gate lines and data lines, on the first base substrate and defining a plurality of sub-pixels. The second substrate includes a second base substrate. At least one heating sensor is disposed between the first and second base substrates. A non-display area includes a first non-display area, disposed around a display area, and a second non-display area, disposed around the first non-display area. Each heating sensor includes at least one sub-sensor and two sensor terminals, including a first and second sensor terminal, respectively connected to two ends of the at least one sub-sensor. At least one of the at least one sub-sensor is disposed in the first non-display area.
A liquid-crystal display panel and a liquid-crystal display device are provided. The display panel includes a display region and a non-display region surrounding the display region. The display panel also includes a first base including a first substrate, and a plurality of gate lines, a plurality of data lines, and a plurality of sub-pixels disposed in the display region. Moreover, the display panel includes a second base including a second substrate, and a liquid-crystal layer disposed between the first base and the second base. In addition, the display panel includes a heating power terminal disposed in the non-display region and including a first heating power terminal for outputting a high voltage and a second heating power terminal for outputting a low voltage. Further, the display panel includes at least one heating electrode disposed between the first substrate and the second substrate and used to heat the liquid-crystal layer.
Embodiments of the preset application relate to the technical field of electromagnetic waves and provide a liquid-crystal phase shifter and an antenna. A carrier frequency applicable to the liquid-crystal phase shifter can be adjusted, thereby improving the compatibility of the liquid-crystal phase shifter. The liquid crystal phase shifter comprises: at least one phase shift unit. The phase shift unit comprises a microstrip line, a phase controlled electrode, and two feed terminals; the microstrip line is located between a first substrate and a liquid crystal layer, the phase controlled electrode is located between a second substrate and the liquid crystal layer, and two ends of the microstrip line are respectively overlapped with the two feed terminals; the phase controlled electrode comprises at least two sub-electrodes provided at an interval, the microstrip line comprises effective lines corresponding to each sub-electrode, and each sub-electrode covers a corresponding effective line.
A liquid crystal phase shifting unit and a manufacturing method therefor, a liquid crystal phase shifter, and an antenna. The present invention relates to the technical field of phase shifting and can increase the length of microstrip lines without increasing the volume of a liquid crystal phase shifting unit. The liquid crystal phase shifting unit comprises: a first substrate (1) and a second substrate (2); wherein a plurality of first protrusions (7) is provided on a surface of the first substrate (1), a plurality of second protrusions (8) is provided on a surface of the second substrate (2), and the first protrusions (7) and the second protrusions (8) are disposed alternatingly; microstrip lines (3) disposed on the surface of the first substrate (1) facing toward the second substrate (2), the microstrip lines (3) covering at least a part of the first protrusions (7); a first support pad (4) disposed between the first substrate (1) and the second substrate (2); a grounding electrode (5) disposed on the surface of the second substrate (2) facing toward the first substrate (1), the grounding electrode (5) covering at least a part of the second protrusions (8); and liquid crystal molecules (6) filled between the microstrip lines (3) and the ground electrode (5). The liquid crystal phase shifting unit is used to perform phase shifting on microwave signals.
G02F 1/13 - 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 for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
Embodiments of the present application relate to the technical field of electromagnetic waves, and provide a liquid crystal phase shifter and an antenna. The carrier frequency applicable for the phase shifter can be adjusted so as to improve the compatibility of the phase shifter. The liquid crystal phase shifter comprises: at least one phase shift unit. The phase shift unit comprises a microstrip and a phase control electrode, the microstrip comprising multiple sub microstrips; each sub microstrip comprising two end portions and a transmission unit connected between the two end portions; any two adjacent sub microstrips sharing one end portion, and further comprises a feed end located at one side of a first substrate distant from a second substrate or at one side of the second substrate distant from the first substrate; each feed end overlapping with a corresponding end portion, respectively.
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
28.
LIQUID CRYSTAL PHASE SHIFTING UNIT, MANUFACTURING METHOD THEREFOR, LIQUID CRYSTAL PHASE SHIFTER, AND ANTENNA
A liquid crystal phase shifting unit, a manufacturing method therefor, a liquid crystal phase shifter, and an antenna, related to the technical field of phase shifting. Steady support is implemented for a liquid crystal filling area (6) via a support structure (4), thus increasing the stability of transmission for a microwave signal. An area between a first substrate (1) and a second substrate (2) of the liquid crystal phase shifting unit comprises the liquid crystal filling area (6). A microstrip line (3) is provided on the surface of the first substrate (1) facing the second substrate (2). The orthogonal projection of the microstrip line (3) on the first substrate (1) is located within the liquid crystal filling area (6). The support structure (4) is provided between the first substrate (1) and the second substrate (3), and is arranged in the liquid crystal filling area (6). The orthogonal projection of the support structure (4) on the first substrate (1) does not overlap with the microstrip line (3). The present invention is used for performing phase shifting on a microwave signal.
G02F 1/13 - 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 for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
H01Q 3/36 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means with variable phase-shifters
A liquid crystal phase shifter and an antenna, which are capable of adjusting the phase of electromagnetic waves. The liquid crystal phase shifter may be deformed, thereby being applicable to a wider range of scenarios. The liquid crystal phase shifter comprises a first substrate (1), a second substrate (2) and a liquid crystal layer (3); the first substrate (1) comprises a first flexible substrate (11) and a first liquid crystal alignment layer (12) that is located on a side of the first flexible substrate (11) close to the second substrate (2); the second substrate (2) comprises a second flexible substrate (21) and a second liquid crystal alignment layer (22) located on a side of the second flexible substrate (21) close to the first substrate (1); at least one phase shift unit (4), the phase shift unit (4) comprising a microstrip (41) and a phase controlled electrode (42), wherein the microstrip (41) is located between the first flexible substrate (11) and the first liquid crystal alignment layer (12), and the phase controlled electrode (42) is located between the second flexible substrate (21) and the second liquid crystal alignment layer (22).
G02F 1/13 - 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 for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
A liquid crystal phase shifting unit and a manufacturing method therefor, a liquid crystal phase shifter and an antenna, which can enable the liquid crystal phase shifting unit to be better used for a curved surface, increasing the usage range. The liquid crystal phase shifting unit comprises: a first flexible substrate (1) and a second flexible substrate (2) which are provided opposite to each other; a microstrip line (3) provided on one side of the first flexible substrate (1) facing the second flexible substrate (2); an electrode layer (4) provided on one side of the second flexible substrate (2) facing the first flexible substrate (1); and a solid state liquid crystal (5) provided between the microstrip line (3) and the electrode layer (4). The liquid crystal phase shifting unit is used to perform phase shifting on microwave signals.
G02F 1/13 - 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 for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
A display panel, a display device and a driving method of the display panel are provided. The display panel includes: a plurality of touch electrodes; a plurality of control units; switching units. Each switching unit and one of the control units are arranged to be associated with each other. Each switching unit is associated with one of the touch electrodes. Each control unit has a first and a second triggering signal input terminal, different gate driving signals are input to the first and the second triggering signal input terminal respectively. Each control unit is configured to output a control signal to an associated switching unit according to the gate driving signals input to the first and the second triggering signal input terminal. The associated switching unit is configured to output a touch signal to the associated one of the touch electrodes according to the control signal.
A liquid crystal display and a method for testing the liquid crystal display are disclosed. The liquid crystal display includes a TFT substrate including M scan lines and N data lines, a drive power line, and a switch unit adapted to connect the drive power line to the M scan lines under control of a control signal during a detection of a source of Mura of the liquid crystal display. The testing method includes: applying the control signal to the switch unit; applying a data signal to the N data lines; determining the source of the Mura of the liquid crystal display according to a current brightness of the liquid crystal display; and stopping applying the control signal to the switch unit.
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G02F 1/1365 - Active matrix addressed cells in which the switching element is a two-electrode device
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
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