Liquid Crystal Display Elements (lcd) Patents (Class 345/87)
  • Patent number: 11908428
    Abstract: A display apparatus includes a plurality of pixels arranged in rows and columns, each pixel column extends in a first direction and each pixel row extends in a second direction crossing the first direction, a first data line extending in the first direction and configured to transfer a data voltage to pixels included in at least two pixel columns, and for each pixel row, a first gate line extending in the second direction and disposed at a first side of the pixel row, and a second gate line extending in the second direction and disposed at a second side of the pixel row, the first and second sides of the pixel row are opposite to each other. In a pair of adjacent pixel columns, pixels, which are connected to the first gate line of their respective pixel row, are arranged in a zigzag arrangement in the first direction.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: February 20, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung-Won Kim, Dongwon Park, Jaesung Bae, Nam-Gon Choi
  • Patent number: 11908374
    Abstract: A demultiplexer is provided. The demultiplexer includes a plurality of demultiplexer units. Each of the demultiplexer units includes two first type thin film transistors sharing a source electrode, and two second type thin film transistors are disposed between two of the demultiplexer units adjacent to each other. Space utilization of the demultiplexer is improved. A display panel and a display device having the demultiplexer are also provided.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: February 20, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Wenqiang Yu
  • Patent number: 11908425
    Abstract: An information handling system presents visual images at a display through a scalar that adjusts the visual images with a gamma lookup table selected from plural gamma lookup tables based upon a refresh rate of the display. As a graphics processor commands variable refresh rates, a blanking period is used to adjust the refresh rates and a gamma lookup table selection is applied during the blanking period to encourage uniform luminance. Each gamma lookup table is stored in a separate SRAM and input to a multiplexor that uses the refresh rate to select which gamma adjusted visual image is presented at the display.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: February 20, 2024
    Assignee: Dell Products L.P.
    Inventors: Hyunseok Ko, Bongjun Lee
  • Patent number: 11908402
    Abstract: The display device includes: a display panel, having a plurality of pixel assemblies each including a power supply end; a timing control circuit, having a first signal output end configured to output a selection instruction signal, and a second signal output end configured to output a clock signal; and a power circuit, including a voltage generation assembly configured to generate a plurality of step voltages, a voltage selection assembly configured to select at least one step voltage from the plurality of step voltages in response to the selection instruction signal, and a voltage conversion assembly configured to determine a power supply voltage on the basis of the step voltage in response to the clock signal and to output the power supply voltage to the power supply end.
    Type: Grant
    Filed: June 13, 2023
    Date of Patent: February 20, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Jianlei Li, Zhicheng Tao, Baohong Kang
  • Patent number: 11901354
    Abstract: The disclosure provides an array substrate, a manufacturing method thereof and a display device. The array substrate includes a plurality of conductive lines and an electrostatic protection circuit on a base substrate. At least some of the conductive lines are connected through the electrostatic protection circuit. Two conductive lines connected with the electrostatic protection circuit are respectively a first conductive line and a second conductive line. The electrostatic protection circuit includes a first transistor, a second transistor, and a first capacitor. A first electrode of the first transistor, a first electrode of the second transistor and a gate electrode of the second transistor are connected to the second conductive line, and a second electrode of the first transistor, a second electrode of the second transistor and a gate electrode of the first transistor are connected to the first conductive line.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: February 13, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chunping Long, Hui Li
  • Patent number: 11902457
    Abstract: An electronic device includes a housing structure including a plurality of antennas; a hinge; a first housing connected to the hinge and including a first surface and a second surface opposite to the first surface; and a second housing connected to the hinge and including a third surface and a fourth surface opposite to the third surface, a sensor module; and a processor operatively connected to the sensor module. The processor detects an unfolding operation or a folding operation between the first housing and the second housing using the sensor module, generate folding information on the unfolding operation or the folding operation based on a folding angle formed between the first housing and the second housing, when the unfolding operation or the folding operation is detected, and control an output of at least one antenna based on the folding information.
    Type: Grant
    Filed: September 1, 2022
    Date of Patent: February 13, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jaeyoung Jin, Yelim Kim, Hyeondeok Kim, Wonsub Lee, Joonwon Cho, Woong Han
  • Patent number: 11893943
    Abstract: A shift register unit includes an input circuit, a first control circuit, a second control circuit, and an output circuit. The input circuit is configured to provide a signal of a first clock signal line or a first power line to a first control node. The first control circuit is configured to provide a signal of the first power line or a second power line to a first output terminal. The second control circuit is configured to provide a signal of the first power line or the second power line to a second output terminal. The output circuit is configured to output an effective level signal of the first power line or the second power line to a third output terminal.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: February 6, 2024
    Assignees: Chongqing BOE Display Technology Co.,Ltd., BOE Technology Group Co., Ltd.
    Inventors: Teng Chen, Faming Jiang, Ri Chen, Xinxing Jia, Weixin Meng, Jonguk Kwak
  • Patent number: 11893950
    Abstract: It is an object to provide a display device which can favorably display a image without delayed or distorted signals. The display device includes a first gate driver and a second gate driver. The first gate driver and the second gate driver each include a plurality of flip flop circuits and a plurality of transfer signal generation circuits. Both the flip flop circuit and the transfer signal generation circuit are circuits which output a signal inputted to a first input terminal with a half clock cycle delay. In addition, an output terminal of the transfer signal generation circuit is directly connected to a first input terminal of the flip flop circuit in the next stage. Therefore, delay and distortion of the signal which is inputted from the transfer signal generation circuit to the flip flop circuit can be reduced.
    Type: Grant
    Filed: January 23, 2023
    Date of Patent: February 6, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Atsushi Umezaki
  • Patent number: 11893952
    Abstract: A display panel and a driving method thereof, and a display device are provided. The display panel includes a first display region, a second display region, and a control device. The first display region is on a side of the second display region, and the second display region includes N display sub-regions; and the control device is connected to the first display region and the second display region, respectively, and configured to control display of the first display region and display of the second display region in i time intervals within one frame period, and sequentially control the display of the first display region and display of an i-th display sub-region in the second display region in an i-th time interval, wherein 1?i?N, and N is a positive integer greater than or equal to 3.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: February 6, 2024
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liye Duan, Zongmin Liu, Long Wang, Mengjun Hou, Yao Lu
  • Patent number: 11887514
    Abstract: A display device is provided. The display device includes a display panel and a plurality of driving chips. A detection circuit of each of the driving chips includes a plurality of sub-detection circuits. Each of the sub-detection circuits is correspondingly coupled to one data line through a control switch corresponding to each of the sub-detection circuits. The display panel further has a plurality of detection pads. A plurality of detection signals received by the detection pads are transmitted to the data lines through the sub-detection circuits. A portion of the data lines correspondingly coupled to each of the driving chips is grouped into a data line group. Resistance of the sub-detection circuits correspondingly coupled to the portion of the data lines in the data line group is caused to continuously gradually vary.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: January 30, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Jian Tao
  • Patent number: 11887520
    Abstract: The present invention provides a chipset for FRC, wherein the chipset includes a first FRC chip and a second FRC chip. The first FRC chip is configured to receive a first part of input image data, and perform a motion compensation on the first part of the input image data to generate a first part of an output image data, wherein a frame rate of the output image data is greater than or equal to a frame rate of the input image data. The second FRC chip is configured to receive a second part of the input image data, and perform the motion compensation on the second part of the input image data to generate a second part of the output image data; wherein the first part and the second part of the output image data are combined into the complete output image data for displaying on a display panel.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: January 30, 2024
    Assignee: Realtek Semiconductor Corp.
    Inventors: Tien-Hung Lin, Chia-Wei Yu
  • Patent number: 11887532
    Abstract: Disclosed are a gate driving circuit including a first gate output buffer circuit and a control circuit, and a display device including the same. The control circuit may include a first transistor connected between a first driving voltage node and a QB node, two second transistors connected in series between the QB node and a second low level voltage node, a third transistor connected between a connection node of the two second transistors and the first driving voltage node, a fourth transistor connected between the gate node of the first transistor and the first driving voltage node, and two fifth transistors connected in series between the gate node of the first transistor and the second low level voltage node. A connection node of the two fifth transistors may be electrically connected to the source node or the drain node of the third transistor.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: January 30, 2024
    Assignee: LG Display Co., Ltd.
    Inventor: YongHo Kim
  • Patent number: 11881187
    Abstract: A polymer dispersion type liquid crystal device includes a pair of transparent substrates; a pair of transparent electrodes provided between the pair of transparent substrates; a liquid crystal layer formed by filling a polymer dispersion type liquid crystal between the pair of transparent electrodes; and a driving circuit that applies a voltage between the pair of transparent electrodes to set the liquid crystal layer to a non-scattering state or a scattering state. The driving circuit applies a direct current voltage that periodically inverts a polarity between the pair of transparent electrodes.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: January 23, 2024
    Assignee: NITTO DENKO CORPORATION
    Inventors: Shigeyasu Mori, Yoshihiro Onishi
  • Patent number: 11881130
    Abstract: A head-up display system includes a first projection module, a second projection module, and a first reflective optical element. The first projection module projects a first image. The second projection module projects a second image. The first reflective optical element reflects at least a part of the first image and at least a part of the second image. The first projection module includes a first display panel that displays the first image and projects the first image toward the first reflective optical element. The second projection module includes a second display panel that displays the second image, and an optical system that directs the second image toward the first reflective optical element.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: January 23, 2024
    Assignee: KYOCERA Corporation
    Inventors: Kaoru Kusafuka, Mitsuhiro Murata, Sunao Hashimoto
  • Patent number: 11875755
    Abstract: A method of driving a light emitting diode (LED) backlight unit, which includes a plurality of LED elements that are connected to a plurality of gate lines and a plurality of source lines, includes generating a plurality of gate signals applied to the plurality of gate lines. While the plurality of gate signals are generated, a non-overlap interval between activation intervals of two adjacent gate signals is generated. All of the plurality of gate signals are deactivated during the non-overlap interval. A plurality of source signals applied to the plurality of source lines are generated. While the plurality of source signals are generated, a high-impedance (Hi-Z) interval included in the non-overlap interval is generated. At least some of the plurality of source signals have a high-impedance state during the high-impedance interval.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: January 16, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyunji Yoon, Yangwook Kim, Kyungchun Kim, Sukyun Woo, Pansoo Kim, Byungil Kim, Hyeongtae Kim, Jisu Yoon
  • Patent number: 11875596
    Abstract: Disclosed are a display panel and a display apparatus. The display panel includes an opposing substrate, an array substrate and a liquid crystal layer. The array substrate includes: a first base substrate; a color film layer, includes a black matrix and a plurality of color resistors, the black matrix includes a plurality of pixel openings and a plurality of first light transmitting holes, and color resistors is arranged one pixel opening correspondingly; and photosensitive sensors, arranged between the color film layer and the first base substrate, orthographic projections of the plurality of photosensitive sensors on the first base substrate are in an orthographic projection of the black matrix on the first base substrate, and the orthographic projection of each of the plurality of photosensitive sensors on the first base substrate covers an orthographic projection of at least one the plurality of first light transmitting holes on the first base substrate.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: January 16, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Lubin Shi, Hongrun Wang, Fuqiang Li, Wenqu Liu
  • Patent number: 11875720
    Abstract: A display device includes a display panel and the display panel includes a pixel. The pixel includes a light emitting unit including at least one light emitting element, a driving transistor providing a driving current corresponding to a data signal to the light emitting unit, and a first transistor electrically connected between both ends of the light emitting unit. A driver provides the data signal to the pixel and provides a duty control signal to the first transistor. The driver varies a voltage level of the data signal in a first grayscale section in which a grayscale corresponding to the data signal is greater than or equal to a reference grayscale, and varies a duty ratio of the duty control signal in a second grayscale section in which the grayscale is less than the reference grayscale.
    Type: Grant
    Filed: January 4, 2023
    Date of Patent: January 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gwang Teak Lee, Tae Gon Im
  • Patent number: 11868014
    Abstract: Provided is an array substrate, a manufacturing method for an array substrate, and a display panel. The array substrate includes a first substrate base, common electrode lines, a color filter layer, and a planarization layer; the color filter layer includes first color filters and a second color filters, forming color filter channels therebetween on the common electrode lines, so as to avoid overlapping between the first color filters and the second color filters. The width of the common electrode lines is relatively small, ensuring a high aperture rate of the array substrate. Additionally, the array substrate further includes a planarization layer filled in the color filter channels, this minimizes the color filter channels to ensure flatness between the first color filters and the second color filters, so that etching residues in the color filter channels can be avoided when forming the pixel electrode layer.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: January 9, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Shishuai Huang, Bing Han, Baohong Kang
  • Patent number: 11868002
    Abstract: A backlight module and a display device having same are provided in the present disclosure. The backlight module includes a plurality of backplanes that are combined, where a plurality of light-emitting units are disposed. Each of the light-emitting units includes a first light-emitting unit located in the combining areas of the adjacent backplanes, and a second light-emitting unit located in the other areas of the backplanes. In at least one backplane, a first resistance between the first light-emitting unit and the corresponding power source high-potential signal input terminal is smaller than a second resistance between the second light-emitting unit and the corresponding power source high-potential signal input terminal.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: January 9, 2024
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Xingyi Liu
  • Patent number: 11863855
    Abstract: In an embodiment, a terminal device includes a display unit having a display screen, and a light sensing unit located below the display unit and configured to sense incident light transmitted through the display screen. The display unit includes a transparent electrode, an opaque electrode, and an organic layer sandwiched between the two electrodes. The organic layer spontaneously emits light when a voltage difference is applied between the two electrodes. The second electrode has a semi-transparent area disposed corresponding to the light sensing unit and a remaining area which is an area of the second electrode except for the semi-transparent area. Also, an image capturing method is provided.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: January 2, 2024
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Chang Liu
  • Patent number: 11862442
    Abstract: A plasma process monitoring device capable of monitoring plasma light distributed in a certain area in a chamber includes a selection area light transmitter and a monitor. The selection area light transmitter is disposed to face a viewport formed in a chamber and includes a plurality of selective light blockers for selectively blocking plasma light emitted through the viewport. The monitor receives plasma light transmitted through at least one of a plurality of selective light blockers to acquire information on the plasma light, and monitors the uniformity of plasma generated in the chamber based on the information on the plasma light.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: January 2, 2024
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventor: Il Gu Yun
  • Patent number: 11862059
    Abstract: A display device includes a first gamma line providing a first gamma voltage; a second gamma line providing a second gamma voltage; a local tab point line; a first switch configured to connect the first gamma line to the local tab point line based on a tab division enable signal; and a second switch configured to connect the second gamma line to the local tab point line based on the tab division enable signal.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: January 2, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Taeksu Kwon, Dongwook Suh
  • Patent number: 11852941
    Abstract: A cholesteric liquid crystal display device includes a solar cell, a first substrate, a shielding layer, a first electrode layer, a cholesteric liquid crystal layer, a second electrode layer and a second substrate stacked sequentially from bottom to top. The solar cell includes a metal wiring pattern layer. The shielding layer corresponds to the upper side of the metal wiring pattern layer, and is used to reduce the reflection of light from the metal circuit pattern layer. In this way, the cholesteric liquid crystal display device replaces the traditional black absorbing layer with the black material of the solar cell, which can not only absorb light, but also display the image with self-sustaining power. The cholesteric liquid crystal display device shields the arrangement of the metal wiring pattern layer through the shielding layer, which can ensure the image quality of the display panel.
    Type: Grant
    Filed: January 18, 2023
    Date of Patent: December 26, 2023
    Assignee: IRIS OPTRONICS CO., LTD.
    Inventors: Wu-Chang Yang, Hung Tien Chen, Chi-Chang Liao
  • Patent number: 11848551
    Abstract: The present application discloses an over-current protection circuit, a driving method for the over-current protection circuit and a display device. The over-current protection circuit includes a detection circuit, a first protection branch and a comparison circuit; where the detection circuit detects the current of a preset detection point in real time and obtains a detection voltage based on the current passing through the detection point; the first protection branch includes a delayer which delays the detection voltage obtained by the detection circuit for a preset time and then outputs a first reference voltage; and the comparison circuit compares the detection voltage with the first reference voltage.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: December 19, 2023
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventors: Wei Chen, Chongwei Tang, Yubo Gu
  • Patent number: 11846860
    Abstract: A display device including: a substrate; a first thin film transistor of polysilicon semiconductor, a second thin film transistor of oxide semiconductor; a first light shading film opposing to the polysilicon semiconductor, and a second light shading film opposing to the oxide semiconductor; a first insulating film, a second insulating film which is constituted from plural insulating films, and a third insulating film superposed in this order; a first through hole penetrating the second insulating film and not penetrating the first insulating film and the third insulating film; a second through hole penetrating the first insulating film and the third insulating film; the first light shading film connects with a first conductive component, a part of the first conductive component exists on the third insulating film, through the second through hole.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: December 19, 2023
    Assignee: Japan Display Inc.
    Inventors: Akihiro Hanada, Toshihide Jinnai, Isao Suzumura, Hajime Watakabe, Ryo Onodera
  • Patent number: 11837167
    Abstract: A display device can include a display panel having sub pixels configured to emit light of different colors, a data driver configured to output a data voltage to the sub pixels via data lines, and a timing controller configured to output power control signals for controlling a driving current which drives the data driver. The data driver can include source driving integrated circuits, each including power control circuits configured to generate the driving current in accordance with each of the power control signals, and amplifiers configured to be applied with the driving current to output the data voltage to each of the data lines.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: December 5, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: MinKi Kim, JinSung Kim, JinCheol Hong
  • Patent number: 11837193
    Abstract: Disclosed systems and methods for off-axis color correction in dynamic image capture of video wall displays involve measuring color performance of specific LED tiles or video walls and providing a database to store the characteristics of these off-axis measurements for use in color correction. The database is accessible by a color correction engine associated directly or indirectly with the video rendering engine so that when combined with real-time information on camera view angle and field of view relative to the display, a color correction function can be incorporated into the rendering of the display portion within the field of view of the camera so as to reduce or eliminate off-axis color variations/distortions in the captured image.
    Type: Grant
    Filed: April 20, 2023
    Date of Patent: December 5, 2023
    Assignee: H2VR HOLDCO, INC.
    Inventors: Jeremy Hochman, Christopher S. Byrne
  • Patent number: 11837186
    Abstract: When, in a liquid crystal projector, optical responsiveness of a liquid crystal panel corresponding to G is better than optical responsiveness of a liquid crystal panel corresponding to R, a display control circuit performs a tr correction and a tf correction of overdrive processing for R, and performs only the tr correction of the overdrive process for G, and does not perform the tf correction for G. The display control circuit performs a black floating process for R, G, and B.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: December 5, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Daigo Hokazono, Toru Aoki, Kazuhisa Mizusako
  • Patent number: 11830411
    Abstract: A display driving circuit which is improved to actively control current consumption depending on a change in a pattern displayed on a screen. The display driving circuit includes a current controller configured to provide a current control signal corresponding to a data change amount between first display data of a current frame and second display data of a previous frame; and an output buffer configured to sequentially output source signals corresponding to the second display data and the first display data.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: November 28, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventor: Jin Woo Kim
  • Patent number: 11823631
    Abstract: A display device includes a display panel having a curved side or a polygonal side, the display panel including a plurality of pixels in a display region, a gate driver including a plurality of normal stages connected to each other for outputting gate signals to the pixels via a plurality of gate lines, and a plurality of dummy stages between some of the normal stages, and a data driver providing data signals to the pixels via a plurality of data lines.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: November 21, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung-Bae Bae, So-Young Lee, Won-Se Lee
  • Patent number: 11815774
    Abstract: According to one embodiment, an electronic device includes a liquid crystal panel and a camera. The liquid crystal panel includes a display area and an incident light control area. The display area includes a pixel electrode. The camera overlaps the incident light control area. The incident light control area includes an annular line, and a control electrode formed inside the annular line to be connected to the annular line. A time to apply a voltage to the control electrode is shorter than a time to apply a voltage to the pixel electrode.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: November 14, 2023
    Assignee: Japan Display Inc.
    Inventors: Kazuhiro Nishiyama, Akio Takimoto, Toshiki Kaneko, Takuo Kaitoh, Hiroyuki Kimura
  • Patent number: 11810527
    Abstract: The disclosure includes multiple data drivers provided for each predetermined number of data lines. Each data driver receives an image signal; generates, based on the image signal, a positive gradation data signal and a negative gradation data signal; outputs one of the positive and negative gradation data signals to one of a first and second data line groups of a display panel; and outputs the other of the positive and negative gradation data signals to the other of the first and second data line groups. The data driver shifts a phase of the negative gradation data signal in a direction delayed with respect to the positive gradation data signal, and controls a slew rate of an output amplifier for outputting the positive gradation data signal to be lower than that of an output amplifier for outputting the negative gradation data signal.
    Type: Grant
    Filed: July 4, 2022
    Date of Patent: November 7, 2023
    Assignee: LAPIS Technology Co., Ltd.
    Inventor: Hiroshi Tsuchi
  • Patent number: 11804197
    Abstract: A display may include illumination optics, a ferroelectric liquid crystal on silicon (fLCOS) panel, and a waveguide. The display may include a temperature sensor that gathers temperature sensor data. Control circuitry may select a non-square wave drive voltage waveform based on the gathered temperature sensor data and/or based on frame history information for the fLCOS display panel. The control circuitry may control the fLCOS panel to produce image light by driving the fLCOS panel using the selected non-square wave drive voltage waveform. The non-square wave drive voltage waveform may be an overdrive waveform or an underdrive waveform. This may serve to optimize the reflectance of the fLCOS display panel and thus the optical performance of the display module regardless of operating temperature and frame history.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: October 31, 2023
    Assignee: Apple Inc.
    Inventors: Aaron L. Holsteen, Xiaokai Li, Yuan Chen, Zhibing Ge
  • Patent number: 11800610
    Abstract: Methods and apparatus for driving an emitter array are described. A method includes determining a thermal environment profile for a plurality of emitters of the emitter array, computing a current pulse profile for at least one of the plurality of emitters based on the thermal environment profile, and applying a current pulse with the computed current pulse profile to the at least one of plurality of emitters.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: October 24, 2023
    Assignee: Lumileds LLC
    Inventor: Pieter Johannes Quintus van Voorst Vader
  • Patent number: 11796876
    Abstract: An array substrate has sub-pixel regions arranged in an array, and the sub-pixel regions include white sub-pixel regions and primary color sub-pixel regions. The array substrate includes a first substrate and a plurality of sub-pixels disposed on the first substrate. The sub-pixels includes white sub-pixels and primary color sub-pixels. In a column direction, a side of each white sub-pixel is adjacent to at least one primary color sub-pixel. Each sub-pixel has light-shielding patterns. In the column direction, in a plurality of light-shielding patterns of a primary color sub-pixel adjacent to the white sub-pixel, a part of the light-shielding patterns are disposed in a white sub pixel region where the white sub-pixel is located, and another part of the light-shielding patterns are disposed in a primary color sub-pixel region corresponding to the primary color sub-pixel.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: October 24, 2023
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xueqiang Qian, Dongchuan Chen, Yanfeng Li, Yu Xing, Kaixuan Wang, Bingyang Liu
  • Patent number: 11790821
    Abstract: A driving control circuit, a driving control method, and a display device are disclosed. The driving control circuit includes an input terminal, a power-down time acquisition circuit, an output terminal, and a switch circuit. The input terminal is configured to receive an input voltage; the power-down time acquisition circuit is configured to detect a power-down time period required for the input voltage to decrease to a lowest voltage, the power-down time period is used to generate a switch control signal; the output terminal is configured to output a voltage; and the switch circuit is configured to receive the input voltage and determine, according to the switch control signal, whether to be turned on to transmit the input voltage to the output terminal for output.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: October 17, 2023
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Lixin Zhu, Chunyang Nie
  • Patent number: 11790857
    Abstract: A display device includes a display panel including data lines and pixels electrically connected to the data lines. The data driver supplies data signals to the data lines. The data driver includes: a first output buffer electrically connected to a first data line of the data lines, the first output buffer outputting a first data signal to the first data line; and a first comparator electrically connected to an output terminal of the first output buffer, the first comparator comparing a first slew rate of the first data signal with a first reference slew rate.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: October 17, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soo Yeon Kim, Tae Gon Im, Jong Jae Lee, Dae Gwang Jang
  • Patent number: 11783768
    Abstract: A power supply may include a power converter configured to supply a driving voltage to a display panel. The power converter may also include a sub-power unit configured to supply a sub-driving voltage to the display panel when the power converter operates abnormally.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: October 10, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventor: Eun Ryeol Baek
  • Patent number: 11776477
    Abstract: A pixel circuit of a display panel is provided, including a first, second, third, fourth, fifth switch, a first capacitor and a diode. The first switch is connected with a positive supplied power voltage. The second switch is connected with the first switch and a data line. The third switch is connected with the first and second switch, generating an emission current as a driving transistor. First end of the first capacitor is connected with the first, second and third switch. Second end of the first capacitor is connected with the third, fourth and fifth switch. The fifth switch is connected with a first initial voltage. Anode of the diode is connected with the third and fourth switch while its cathode is connected with a negative emission source voltage. By configuration of the disclosed pixel circuit, a power rail emission current is independent, without being involved with initial voltages.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: October 3, 2023
    Assignee: Novatek Microelectronics Corp.
    Inventor: Sheng-Wen Hsiao
  • Patent number: 11769459
    Abstract: A display device includes a control circuit. By setting an intermediate point between a start point and an end point of a lighting period as a start point of the lighting cycle, and setting an intermediate point between a start point and an end point of a lighting period of the next lighting period as an end point of the lighting cycle, the control circuit controls a backlight such that an absolute value of a difference value between a first ratio of a sum of a length of a first lighting period in the first lighting cycle and a length of the next second lighting period in the first lighting cycle to a length of the first lighting cycle and the target duty ratio is 0.1 or less.
    Type: Grant
    Filed: December 9, 2022
    Date of Patent: September 26, 2023
    Assignee: Sharp Display Technology Corporation
    Inventors: Koki Oka, Kohichi Ohhara
  • Patent number: 11768549
    Abstract: Embodiments of a vehicle interior system are disclosed. In one or more embodiments, the system includes a base with a curved surface, and a display or touch panel disposed on the curved surface. The display includes a cold-bent glass substrate with a thickness of 1.5 mm or less and a first radius of curvature of 20 mm or greater, and a display module and/or touch panel attached to the glass substrate having a second radius of curvature that is within 10% of the first radius of curvature. Methods for forming such systems are also disclosed.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: September 26, 2023
    Assignee: Corning Incorporated
    Inventors: Jordon Thomas Boggs, Michael Timothy Brennan, Atul Kumar, Arpita Mitra, William Michael Seiderman, Yawei Sun, Wendell Porter Weeks
  • Patent number: 11763724
    Abstract: A shift register unit, a method for driving a shift register unit, a gate drive circuit, and a display device are disclosed. A shift register unit includes an input circuit, an output circuit, and a first control circuit. The input circuit controls a level of a first node in response to an input signal. The output circuit outputs at least one clock signal of at least one clock signal terminal to at least one signal output terminal under the control of the level of the first node, and outputs a level of a second node to at least one of the at least one signal output terminal in the case where the first node is at a non-operating potential. The first control circuit controls the level of the second node in response to the level of the first node.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: September 19, 2023
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Sixiang Wu
  • Patent number: 11764228
    Abstract: A display device is provided. A display device includes a substrate; a gate electrode disposed on the substrate; a semiconductor pattern disposed to overlap the gate electrode; a source electrode disposed on the semiconductor pattern; a drain electrode disposed on the semiconductor pattern and facing the source electrode; and a pixel electrode connected to the drain electrode, wherein the drain electrode comprises a bar-shaped portion disposed on the semiconductor pattern and extending in one direction, a compensation portion connected to one distal end portion of the bar-shaped portion, a connecting portion connected to the other distal end portion of the bar-shaped portion, and an pad portion connected to the connecting portion and overlapping the pixel electrode, wherein the bar-shaped portion has a first width and at least portions of the compensation portion and the connecting portion have a second width that is greater than the first width.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: September 19, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yong Hee Lee
  • Patent number: 11754845
    Abstract: Aspects of the present disclosure relate to modular expansion systems for use in head-worn computing systems. In an head-worn computer, an electrical connector is adapted to electrically connect with a modular expansion module, wherein the modular expansion module adds a capability to the head-worn computer and is removeably mounted to the head-worn computer, and a mount is adapted to physically secure the modular expansion module to the head-worn computer.
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: September 12, 2023
    Assignee: Mentor Acquisition One, LLC
    Inventors: Ralph F. Osterhout, Robert Michael Lohse
  • Patent number: 11756501
    Abstract: An output circuit includes a first switch that outputs a positive voltage signal received via a first node when in an ON state, a second switch that outputs a negative voltage signal received via a second node when in an ON state, third and fourth switches that set the first and second nodes to a reference power supply voltage when in an ON state, a first voltage follower circuit that supplies a voltage obtained by shifting a voltage of the positive voltage signal supplied to the first node to a negative side by a predetermined voltage difference to a gate of the first switch, and a second voltage follower circuit that supplies a voltage obtained by shifting a voltage of the negative voltage signal supplied to the second node to a positive side by a predetermined voltage difference to a gate of the second switch.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: September 12, 2023
    Assignee: LAPIS Technology Co., Ltd.
    Inventor: Hiroshi Tsuchi
  • Patent number: 11749161
    Abstract: There is provided a gate driving circuit comprising N first shift registers arranged alternately with N second shift registers. An input signal terminal of an n-th stage of first shift register is coupled to an output signal terminal of an (n?i)-th stage of first shift register, and a reset signal terminal of the n-th stage of first shift register is coupled to an output signal terminal of an (n+j)-th stage of first shift register. Input signal terminal and reset signal terminal of n-th stage of second shift register are coupled to output signal terminals of (n?i)-th and (n+j)-th stages of second shift registers respectively. K=6, i=3, and j=4. Reset signal terminals of (N?j+1)-th to N-th stages of first shift registers and reset signal terminals of (N?j+1)-th to N-th stages of second shift registers are configured to receive a total reset signal.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: September 5, 2023
    Assignees: Beijing Boe Display Technology Co., Ltd., Boe Technology Group Co., Ltd.
    Inventors: Yingmeng Miao, Changcheng Liu, Zhihua Sun, Yanping Liao, Seungmin Lee, Xibin Shao, Cong Wang, Feng Qu
  • Patent number: 11747707
    Abstract: The present disclosure discloses a display panel and a smart device. The display panel includes a first display area and a second display area adjacent to each other. Further, the display panel further includes a display substrate, a lens on the display substrate, and a transparent cover plate covering the lens and the display substrate. The display substrate includes a first display portion in the first display area and a second transparent portion in the second display area. The lens is configured to emit a part of the light from the first display portion from the second display area.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: September 5, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Mingche Hsieh
  • Patent number: 11747692
    Abstract: According to one embodiment, a display device includes a display area where a plurality of pixels are arrayed, a first drive circuit arranged adjacent to the display area in a first direction, the first drive circuit configured to supply a drive signal to a gate electrode included in each of switching elements, and a memory power line extending in a second direction intersecting the first direction in the display area and configured to supply a potential to a memories. An outer edge of the display area is defined by outermost edges of the pixels located on an outermost side in the display area. A first distance from the first drive circuit to the outer edge is shorter than a second distance from the first drive circuit to the memory power line.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: September 5, 2023
    Assignee: Japan Display Inc.
    Inventor: Takehiro Shima
  • Patent number: 11741905
    Abstract: A display panel includes a source driving circuit, a multiplexer circuit, and multiple sub-pixels arranged in an array. The multiplexer circuit is configured to, under the control of a first multiplexing signal to an Nth multiplexing signal, control the source driving circuit to be connected with sub-pixels of one or more columns; and in a jth frame, a multiplexing signal turn-on sequence for sub-pixels of an odd row is from a Jth multiplexing signal to sequentially increasing to the Nth multiplexing signal and from the first multiplexing signal to sequentially increasing to a (J?1)th multiplexing signal, and a multiplexing signal turn-on sequence for sub-pixels of an even row is completely opposite to the multiplexing signal turn-on sequence for the sub-pixels of the odd row.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: August 29, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Hui Wen, Qing Gong, Xu Lu, Zhaolun Liu
  • Patent number: 11741915
    Abstract: The disclosure includes bus wiring constituted by wiring lines; a gradation voltage generation circuit that generates M gradation voltages representing brightness levels with M gradations, and applies the M gradation voltages to an intermediate portion on M wiring lines belonging to the bus wiring; a plurality of decoders, each of which receives M gradation voltages via the M wiring lines and selects one of the M gradation voltages according to the pixel data pieces to output the selected gradation voltage; a plurality of output amplifiers that individually amplifies the voltages output from the plurality of decoders and generates the amplified voltages as the plurality of pixel drive voltages; and first and second inter-gradation short circuits that short-circuit one ends of each of the M wiring lines and the other ends of each of the M wiring lines according to a load signal for capturing the pixel data pieces.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: August 29, 2023
    Assignee: LAPIS Semiconductor Co., Ltd.
    Inventors: Kenichi Shiibayashi, Keigo Otani