Liquid Crystal Display Elements (lcd) Patents (Class 345/87)
  • Patent number: 11024248
    Abstract: The present application provides a driving device, a driving method and a display device of a display panel. Whether the received M-th drive data of the current row drive data needs to be compensated for or not is determined. When the compensation is needed, the M-th data of the current row drive data needing to be compensated for is compensated through the corresponding compensation drive data looked up according to the M-th drive data of the previous row drive data and the M-th drive data of the current row drive data.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: June 1, 2021
    Assignees: HKC Corporation Limited, Chongqing HKC Optoelectronics Co., Ltd.
    Inventor: Yunchuan Hu
  • Patent number: 11017717
    Abstract: An organic light emitting display panel includes a plurality of pixels arranged in a row direction; a first repair line disposed in the row direction; a plurality of auxiliary bridges, each arranged between the first repair line and each of the plurality of pixels; a plurality of first bridge patterns respectively connected to the plurality of pixels and each first bridge pattern partially overlapping each adjacent auxiliary bridge; and a plurality of second bridge patterns branched from the first repair line and each second bridge pattern partially overlapping each adjacent auxiliary bridge.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: May 25, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seongku Lee, Binn Kim
  • Patent number: 11016319
    Abstract: A display device includes a display panel that displays an image, a back cover disposed on a back face side of the display panel, and a mounting member for fixing the display device to a wall surface. The mounting member is provided in a region extending from a front end of the display panel on a display surface side to a back end of the back cover on the back face side so as to fall within a region of the display device when seen from a side of the display device.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: May 25, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hirotoshi Iemura, Osamu Abe
  • Patent number: 11011094
    Abstract: A display devices with better visual effects and low power consumption in inversion manners is provided. The display device includes a display panel and a driving circuit. The display panel includes scan lines, pixels, first common electrodes and second common electrodes. The second common electrodes and the first common electrodes are alternately arranged. The driving circuit provides a first common voltage to the first common electrodes and provides a second common voltage to the second common electrodes in a first time interval of a first frame time interval and a second time interval of a second frame time interval. In addition, the driving circuit provides the second common voltage to the first common electrodes, and provides the first common voltage to the second common electrodes in the first time interval of the second frame time interval and the second time interval of the first frame time interval.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: May 18, 2021
    Assignee: GIANTPLUS TECHNOLOGY CO., LTD
    Inventor: Wei-Yu Chen
  • Patent number: 11011970
    Abstract: A gate drive circuit, which drives a gate of a first transistor, includes a first switch on a high potential side and a second switch on a low potential side connected in series at a second connection node between a high potential end and a low potential end of a series connection structure, constituted of a first voltage source and a second voltage source connected in series at a first connection node; and a third switch and an inductor connected in series between the first connection node and the second connection node. The gate of the first transistor can be electrically connected to the second connection node.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: May 18, 2021
    Assignee: Rohm Co., Ltd.
    Inventors: Yuta Okawauchi, Yusuke Nakakohara, Ken Nakahara
  • Patent number: 11011127
    Abstract: A display apparatus includes a substrate having a display area for displaying an image and a non-display area surrounding the display area; a first clock line portion in the non-display area, the first clock line portion having a plurality of gate shift clock lines; a second clock line portion in the non-display area between the first clock line portion and the display area, the second clock line portion having a gate start signal line; and a gate driving built-in circuit in the non-display area between the first clock line portion and the second clock line portion, and connected with the plurality of gate shift clock lines and the gate start signal line.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: May 18, 2021
    Assignee: LG Display Co., Ltd.
    Inventor: Taehwi Kim
  • Patent number: 10996810
    Abstract: A window for an aircraft fuselage includes a transparent display for transmitting information to the passenger. The transparent display has a controllable data transmission circuit for varying the light transmission through pixels in the thin film transparent display. Natural light through the window acts as a backlight for the thin film transparent display.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: May 4, 2021
    Assignee: Gulfstream Aerospace Corporation
    Inventors: Stephen Spencer, Sean Thornton, John Bullock
  • Patent number: 10997893
    Abstract: A portable information handling system integrated organic light emitting diode (OLED) display presents a compensation image having pixels illuminated at predetermined color and luminance settings. The compensation image is captured by a external camera as a calibration image and analyzed to compare pixel color and luminance provided by the OLED display with expected color and luminance to determine pixel compensation values that correct the OLED display for presentation of a uniform visual image that reproduces an intended visual image when the compensation values are applied at presentation of visual images by the OLED display.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: May 4, 2021
    Assignee: Dell Products L.P.
    Inventors: Jong Seo Lee, Deeder M. Aurongzeb, Asim M. Siddiqui
  • Patent number: 10990795
    Abstract: The disclosure provides a fingerprint sensing device, including a glass cover plate, a display panel, a fingerprint sensing module, a liquid crystal layer module, and a control circuit. The display panel is disposed below the glass cover plate, and provides illumination light to a finger. The fingerprint sensing module is disposed below the glass cover plate, and senses light reflected by the finger. The liquid crystal layer module is disposed on the fingerprint sensing module. The control circuit is coupled to the liquid crystal layer module, and drives the liquid crystal layer module to focus the illumination light to the finger or focus the light reflected by the finger to the fingerprint sensing module.
    Type: Grant
    Filed: February 15, 2020
    Date of Patent: April 27, 2021
    Assignees: Egis Technology Inc., Igistec Co., Ltd.
    Inventors: Hsueh-Fang Yeh, Ming-Yuan Cheng, Chung-Yi Wang, Yu-Hsuan Lin
  • Patent number: 10991286
    Abstract: A projector includes a liquid crystal panel including a predetermined pixel, a light path shifting element changing a light path of light emitted via the predetermined pixel so that a first region in a display surface in a first unit period and a second region in the display surface in a second unit period partially overlap, and a control unit displaying an image corresponding to a first pixel information on the predetermined pixel in one subfield period within the first unit period, displaying an image corresponding to a second pixel information on the predetermined pixel in another subfield period within the first unit period, displaying an image corresponding to the second pixel information on the predetermined pixel in one subfield period within the second unit period, and displaying an image corresponding to a third pixel information on the predetermined pixel in another subfield period of the second unit period.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: April 27, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Hiroyuki Hosaka
  • Patent number: 10991790
    Abstract: A display device includes: a substrate having a first surface, a second surface opposite to the first surface, and an inner side surface defining through holes; a first wiring and a second wiring disposed on the first surface; and a first conductor and a second conductor disposed in one of the through holes. The first conductor is connected to the first wiring, the second conductor is connected to the second wiring, and the first and second conductors are insulated from each other.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: April 27, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youngsu Kim, Dawoon Kim, Cheuljin Park, Sukwon Jung
  • Patent number: 10991301
    Abstract: An organic light-emitting display device includes a substrate including an active area in which a plurality of pixels are defined, and a non-active area surrounding the active area and having a pad area in which a plurality of pads are disposed on one side of the active area; a plurality of power supply lines disposed in the active area; a plurality of test transistors disposed in the non-active area on another side of the active area; and a plurality of power supply transistors connected to the plurality of power supply lines. Each of the power supply transistors is disposed next to the respective test transistors. A uniform supply voltage can thus be applied across a plurality of pixels without any additional process such that uniformity of luminance can be improved.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: April 27, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: JongHyuck Lee, SangBin Lee, JinHoo Kang
  • Patent number: 10989973
    Abstract: A 3D printed display panel includes two opposing substrates and a black matrix formed on one of the substrates. The light proof areas of the black matrix include multiple first portions, multiple second portions and multiple third portions arranged to form a grid structure. The first portions and the third portions are alternately arranged in a direction of the scanning lines, the second portions and the third portions are alternately arranged in a direction of the data lines. Meshes of the grid structure are aperture zones of the black matrix. The aperture zones are in one-to-one correspondence with the pixel units. A vertical projections of the scanning lines and the data lines on the second substrate are located in the lightproof areas; where a minimum width of one first portion is X, a minimum width of one second portion is Y, and |X?Y|?2 ?m.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: April 27, 2021
    Assignee: SHANGHAI AVIC OPTO ELECTRONICS CO., LTD.
    Inventors: Kerui Xi, Chen Wang, Feng Qin, Xiaohe Li, Jine Liu, Tingting Cui
  • Patent number: 10984741
    Abstract: A display apparatus includes a display panel, a gate driving circuit, and a data driving circuit. The display panel includes N gate lines, M data lines, and a plurality of pixels connected to the N gate lines and the M data lines. The gate driving circuit sequentially drives K-th, (K+2)-th, (K+4)-th, (K+12)-th, (K+14)-th, (K+16)-th, (K+24)-th, . . . , (N?11)-th, (N?9)-th, and (N?7)-th gate lines during a first subframe period, (K+6)-th, (K+8)-th, (K+10)-th, (K+18)-th, (K+20)-th, (K+22)-th, (K+30)-th, . . . , (N?5)-th, (N?3)-th, and (N?1)-th gate lines during a second subframe period, (K+1)-th, (K+3)-th, (K+5)-th, (K+13)-th, (K+15)-th, (K+17)-th, (K+25)-th, . . . , (N?10)-th, (N?8)-th, and (N?6)-th gate lines during a third subframe period, and (K+7)-th, (K+9)-th, (K+11)-th, (K+19)-th, (K+21)-th, (K+23)-th, (K+31)-th, . . . , (N?4)-th, (N?2)-th, and N-th gate lines during a fourth subframe period. The data driving circuit drives the M data lines by outputting data signals to the M data lines.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: April 20, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Juki Park, Tae-Jong Jun, Jinseob Byun
  • Patent number: 10984750
    Abstract: The invention provides a voltage output system and LCD device. The voltage output system is disposed with a variable resistor, one end of the variable resistor is connected to the input voltage transmitted by the level-shifting unit through a contact and a wire, and the other end of the variable resistor is electrically connected to the LCD panel to output an output voltage through a contact and a wire. After the voltage output system is disposed on the assembled circuit board of the LCD device, when the LCD device is tested, the output voltage of the voltage output system can be preset by adjusting the resistance of the variable resistor so that the required different voltages can be provided to the LCD panel conveniently and quickly, which simplifies the test of the LCD device and reduces the product cost.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: April 20, 2021
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Shuai Chen
  • Patent number: 10984700
    Abstract: A shift register unit includes: an input circuit, a reset circuit, and an output circuit; a first pull-down control circuit, configured to transmit the first power signal to the first and second pull-down control nodes, and the pull-down node according to the pull-up node, a second pull-down control circuit, configured to transmit a second power signal to the first pull-down control node according to the second power signal, transmit the second power signal to the second pull-down control node according to the first pull-down control node, and transmit the second power signal to the pull-down node according to the second pull-down control node, and a pull-down circuit, configured to transmit the first power signal to the pull-up node and the signal output end according to the pull-down node. The present disclosure may ensure the normal output of the signal and improve the ability of reducing noise.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: April 20, 2021
    Assignees: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd.
    Inventors: Fei Wang, Xiaofang Gu, Tingting Zhao, Xiaoye Ma, Rui Ma
  • Patent number: 10984693
    Abstract: A display device and a shutdown control method thereof are provided. In the display device, a display panel has multiple pixels. A power supply circuit generates a power supply voltage, a gate high voltage and a common voltage according to an input power. A gate driver generates gate scan signals, and a source driver provides source driving signals to drive the display panel. A shutdown detection circuit detects a variation state of voltages values of the power supply voltage, the input voltage and the gate high voltage, and starts a shutdown process when the variation state is a decreasing state. In the shutdown process, the source driver makes the source driving signals to be equal to a reference ground voltage, the gate driver generates the gate scan signals with a high voltage pulse, and the power supply circuit makes the common voltage to be equal to the reference ground voltage.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: April 20, 2021
    Assignee: Au Optronics Corporation
    Inventors: Chun-Kuei Wen, Hung-Min Shih
  • Patent number: 10978496
    Abstract: A pixel array substrate and a driving method of a pixel array substrate are provided. The pixel array substrate includes a substrate, at least one pixel structure located on the substrate and a liquid crystal layer. The at least one pixel structure includes a micro light emitting diode (?LED), a supporting wall, a first bottom electrode located between the supporting wall and the ?LED, and a first top electrode disposed on the supporting wall and separated from the first bottom electrode. The ?LED includes a first electrode, a first semiconductor layer electrically connected to the first electrode, a second semiconductor layer, a light-emitting layer located between the first semiconductor layer and the second semiconductor layer, and a second electrode electrically connected to the second semiconductor layer. The liquid crystal layer is disposed on the first bottom electrode and located between the supporting wall and the ?LED.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: April 13, 2021
    Assignee: Au Optronics Corporation
    Inventors: Fang-Cheng Yu, Chen-Chang Chen, Tzu-Yi Tsao, Pin-Miao Liu, Cheng-Yeh Tsai
  • Patent number: 10976625
    Abstract: The display panel includes a first substrate, a second substrate, pixel structures, a liquid crystal layer and a transparent conductive layer. The liquid crystal layer is disposed between the pixel structures and the second substrate. The transparent conductive layer is disposed between the second substrate and the liquid crystal layer. When a liquid crystal molecule of the liquid crystal layer is a positive liquid crystal molecule, an absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 2.3 volts(V). When the liquid crystal molecule of the liquid crystal layer is a negative liquid crystal molecule, the absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 5V.
    Type: Grant
    Filed: February 2, 2020
    Date of Patent: April 13, 2021
    Assignees: HannStar Display (Nanjing) Corporation, HannStar Display Corporation
    Inventors: Wei-Chih Hsu, Chen-Hao Su, Yu-Chen Liu
  • Patent number: 10971095
    Abstract: A liquid crystal display includes source lines and gate lines, pixel electrodes, switching elements, a source driver, a gate driver, and a failure inspection circuit. The source lines and the gate lines are disposed in a lattice form. The pixel electrode is disposed in a pixel region defined by the source line and the gate line. The switching element is disposed corresponding to the pixel electrode. The source driver drives the source lines. The gate driver drives the gate lines. The failure inspection circuit is connected to the source lines or the gate lines, and performs inspection of the source lines or the gate lines. The failure inspection circuit includes monitor input signal lines, monitor output signal lines, a determination circuit that detects voltage levels of output signals from the monitor output signal lines, and an expected value comparison circuit that compares outputs from the determination circuit with expected values.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: April 6, 2021
    Assignees: PANASONIC CORPORATION, PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., PANASONIC SEMICONDUCTOR SOLUTIONS CO., LTD.
    Inventors: Jun Suzuki, Akihiro Yoshizawa, Hideki Nozaki, Satoshi Endou, Kenji Fukuta, Hiroaki Goto
  • Patent number: 10971091
    Abstract: An array substrate, a display panel and a driving method thereof, and a display device are provided. The array substrate includes a plurality of pixel units arranged in an array, each of the plurality of pixel units includes at least four sub-pixel units corresponding to different colors. When the array substrate displays a frame of image, in each row of pixel units, polarities of pixel voltages received by two sub-pixel units corresponding to the same color in adjacent two pixel units are different; a polarity of each pixel voltage represents the magnitude of each pixel voltage relative to a common voltage.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: April 6, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenchao Han, Wei Sun, Wei Wang, Yifan Song
  • Patent number: 10971066
    Abstract: A display device includes: a processor; and a display panel which receives an image signal, an image control signal and an image processing signal from the processor and displays an image corresponding to the image signal corrected based on the image processing signal, where the display panel time-divisionally receives the image signal and the image processing signal through a same channel as each other.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: April 6, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jin Ho Kwon
  • Patent number: 10969640
    Abstract: A liquid crystal display device and a driving method thereof are provided. The drive circuit of the liquid crystal display device outputs a drive voltage applied between the first electrode and the second electrode of a pixel. When a transmittance of the sub-pixel is changed from a first transmittance to a second transmittance higher than the first transmittance in a first frame period, the drive voltage is higher than a first target drive voltage corresponding to the second transmittance in a front half period of the first frame period, the drive voltage is equal to the first target drive voltage in a rear half period of the first frame period, and the drive voltage is equal to the first target drive voltage in other frame periods after the first frame period.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: April 6, 2021
    Assignee: HKC CORPORATION LIMITED
    Inventor: Huailiang He
  • Patent number: 10969641
    Abstract: A liquid crystal display device having an outer shape of a display region formed other than a rectangle. A driver for supplying a video signal is disposed outside the display region. A selector with selector TFT is disposed between the display region and the driver. A video signal line is disposed between the driver and the selector, and a drain line is disposed between the selector and the display region. A scanning circuit for supplying a scanning signal to the scanning line is disposed outside the display region. The selector is disposed between the scanning line and the display region, and covered with ITO as the common electrode. The common bus wiring is disposed outside the selector.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: April 6, 2021
    Assignee: Japan Display Inc.
    Inventors: Takayuki Suzuki, Hiroyuki Abe
  • Patent number: 10971068
    Abstract: Disclosed is a circuit and technique to determine the temperature of an AMOLED display in order to calibrate programming data signals. The temperature of selected pixels of a plurality of pixels in an AMOLED display is measured via one of several disclosed methods. A thermal sensor for the selected pixels may be used. A measurement of output voltage data may be used to estimate temperature. A finite element analysis model may be used based on consumed power of the selected pixel. The temperature data for the selected pixel is then interpolated to the neighboring non-selected pixels to estimate the temperature of those pixels.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: April 6, 2021
    Assignee: Ignis Innovation Inc.
    Inventors: Javid Jaffari, Gholamreza Chaji, Tong Liu
  • Patent number: 10964278
    Abstract: A display apparatus comprises: pixels arranged in a matrix, gate lines, source lines, and a control unit. The gate lines are connected to pixels arranged in a row direction and select, in order, pixels in each row at a given frame period. The source lines supply a voltage according to a given gray scale to the pixels in the selected row. The control unit controls, based on gray scale data indicating gray scales included in one frame of video, a timing to cause the pixels in each row to display, in order, gray scales for one row in the video. The control unit corrects, with a target pixel as a reference, gray scale data indicating a gray scale to be displayed by the target pixel, based on an integrated value indicating an integration of voltage applied to a source line connected to the target pixel in one future frame.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: March 30, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Haruhito Yabuki
  • Patent number: 10962823
    Abstract: A display module and a display device. The display module includes: a display panel including a first substrate, a second substrate, and a liquid crystal layer between the first and second substrate; and a backlight panel on a side of the first or second substrate away from the liquid crystal layer. The display panel further includes a color filter layer on a side of the liquid crystal layer away from the backlight panel. The color filter layer includes at least two portions having different transparency. The backlight panel is configured to emit a plurality of directional light beams to the color filter layer. The display panel is configured to change a propagation direction of each of the directional light beams by means of the liquid crystal layer, to adjust an irradiation position of the directional light beam on the color filter layer.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: March 30, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhongxiao Li, Xue Dong, Xiaochuan Chen, Wenqing Zhao
  • Patent number: 10957269
    Abstract: Disclosed is a display device for decreasing a load of a clock line. The display device comprises: a display panel including a plurality of data lines and a plurality of gate lines, and a plurality of pixels in a display area, a gate driver disposed in a non-display area of the display panel and supplying gate signals to the plurality of gate lines, and a gate control line for supplying a gate control signal to the gate driver. The gate control line includes a first gate control line and a second gate control line overlapping the first gate control line with an insulation layer therebetween, the second gate control line being connected to the first gate control line through a first contact hole passing through the insulation layer.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: March 23, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Jongchan Park, JinHwan Kim, Hyunchul Um
  • Patent number: 10957274
    Abstract: A liquid crystal display apparatus includes a plurality of pixels that form a plurality of pixel pairs, each of the pixel pairs being adjacent two pixels in one column, in which, in each of the pixel pairs, a first switch transistor that switches whether or not to output a voltage of a video signal written into one of the pixels to a corresponding data line and a second switch transistor that switches whether or not to output a voltage of a video signal written into the other one of the pixels to a corresponding data line are composed in such a way that they are controlled to be turned on or off by a common switch selection signal for reading.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: March 23, 2021
    Assignee: JVCKENWOOD CORPORATION
    Inventor: Takayuki Iwasa
  • Patent number: 10948985
    Abstract: Perceived clarity of an image presented by a display can be improved using an image stabilization technique to stabilize the image relative to a user's retina. During an illumination period, stabilization actuators are controlled to move a display panel or adjust optical components in the path of light associated with the image to shift the location of the image on the user's retina in response to head or eye movement detected by the system. In some embodiments, a display is configured to illuminate an image, and at least one stabilization actuator is configured to stabilize the image in a retina space associated with a user. Changes in the retina space can be detected by one or more sensors configured to detect a head position of the user and/or an orientation of the user's retina. The image is stabilized in retina space using the stabilization actuators.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: March 16, 2021
    Assignee: NVIDIA Corporation
    Inventors: Thomas Hastings Greer, Josef Bo Spjut, David Patrick Luebke
  • Patent number: 10949037
    Abstract: The present invention provides a method for manufacturing a flexible display device comprising a touch sensor, capable of controlling process dispersion and inhibiting cracks during the transfer of the touch sensor.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: March 16, 2021
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Dohyoung Kwon, Euk Kun Yoon
  • Patent number: 10943543
    Abstract: An array substrate includes a display area, a non-display area other than the display area, a plurality of signal lines located in the display area, and a plurality of signal line leads located in the non-display area and connected to respective ones of the plurality of signal lines. Each of the signal line leads includes a lead body and a first block connected to the lead body, and the first block has an area greater than or equal to an area of a square with a side length that is 5 times a width of the signal line.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: March 9, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Hongfei Cheng
  • Patent number: 10937370
    Abstract: Data driving circuits, display panels and display devices are discussed. In accordance with embodiments of the present disclosure, when the display device is driven in a low-speed drive mode, by periodically resetting a voltage of an anode electrode of a light-emitting element EL in a holding interval, it is possible to enable a waveform of luminescence representing in the holding interval to be identical or similar to a waveform of luminescence representing in the refresh interval and it is therefore possible to prevent flickers from occurring. In addition, one or more reset voltages can be independently set according to driving conditions in the low-speed drive mode, and one or more changed reset voltages can be supplied according to the driving conditions. Therefore, it is possible to further overcome a flicker phenomenon by supplying an optimal reset voltage in various driving conditions in the low-speed drive mode.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: March 2, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventor: SungYoung Son
  • Patent number: 10937779
    Abstract: To prevent an electrostatic damage on a display device formed with a driving circuit. Protective circuits are provided not only at input terminal parts, but also at intermediate parts of a circuit or at the ends of wiring lines. Otherwise, the protective circuits are provided at the ends of the wiring lines and at the places immediately before and after the input terminals, respectively, and then the circuit is interposed therebetween. Further, the protective circuits are provided around a circuit with a large current consumption.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: March 2, 2021
    Assignee: 138 East LCD Advancement Limited
    Inventor: Yutaka Kobashi
  • Patent number: 10930234
    Abstract: A liquid crystal display (LCD) panel includes two substrates and one or more pixel arrays disposed therebetween. The one or more pixel arrays define a pixel matrix having a plurality of pixels. For each of the pixels, the one or more pixel arrays form a mirrored pixel circuit structure including a first pixel electrode and a second pixel electrode opposite to each other. The first pixel electrode and the second pixel electrode in each of the pixels are independently controlled. A quantity of gray levels displayed by each of the pixels of the LCD panel is M, the first pixel electrode and the second pixel electrode in each of the pixels are provided with a voltage switchable between N analog levels, M and N are integers, and N=2×?{square root over (M)}.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: February 23, 2021
    Assignee: A.U. VISTA, INC.
    Inventors: Willem den Boer, Seok-Lyul Lee
  • Patent number: 10923037
    Abstract: The embodiments of the present disclosure disclose a gate driving circuit. The gate driving circuit includes at least one stage of shift register unit to be compensated, wherein a driving terminal of each stage of shift register unit to be compensated is connected to a gate line of a corresponding row of pixels to be compensated, and at least one stage of parasitics compensation circuit, wherein each stage of parasitics compensation circuit is connected in series between a power supply line and a driving terminal of a corresponding shift register unit to be compensated. Each stage of parasitics compensation circuit is configured to compensate a driving terminal of a corresponding shift register unit to be compensated for parasitic capacitance and/or parasitic resistance, so that respective stages of shift register units to be compensated have the same driving load.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: February 16, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jianchao Zhu, Libin Liu
  • Patent number: 10923052
    Abstract: A liquid crystal display device includes a liquid crystal panel including a plurality of liquid crystal pixels, wherein the liquid crystal panel is configured to display a same picture in two adjacent frames; a driving module disposed on the non-display area, wherein the driving module is used to respectively provide each liquid crystal pixel with a same polarity pixel voltage of different levels in the two adjacent frames so as to deflect liquid crystal molecules of each liquid crystal pixel, and in each frame of the two adjacent frames, the level of the pixel voltage of each liquid crystal pixel is different from the level of the pixel voltage of the adjacent liquid crystal pixels in front, back, left or right.
    Type: Grant
    Filed: December 16, 2017
    Date of Patent: February 16, 2021
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yu-Jen Chen
  • Patent number: 10923028
    Abstract: A display panel including a substrate, pixel structures, multiple first and second signal lines, signal transfer lines and a sealant pattern is provided. The substrate has a package region, a display region surrounding the package region and a transfer region positioned between the package region and the display region. The pixel structures, the first and second signal lines are disposed in the display region and each pixel structure is electrically connected to one corresponding first and second signal line. The signal transfer lines are disposed in the package region and electrically connected to the first signal lines. The coefficient of thermal expansion of the signal transfer lines is smaller than the first signal lines. The sealant pattern disposed in the package region is overlapped with the signal transfer lines. A display panel including a signal transfer line whose coefficient of thermal expansion is between 4.8(10?6/K) and 14.2(10?6/K) is also provided.
    Type: Grant
    Filed: November 10, 2019
    Date of Patent: February 16, 2021
    Assignee: Au Optronics Corporation
    Inventors: Yu-Shian Lin, Po-Sheng Liao, Ying-Ying Chen
  • Patent number: 10922516
    Abstract: A display device has a display area with a first area in which a fingerprint is recognized and a second area in which a fingerprint is not recognized, and a non-display area. A fingerprint sensing unit is disposed to overlap with the first area. A first pixel set is disposed to overlap with the first area, and a second pixel set is disposed to overlap with the second area, each set including a plurality of pixels. A first voltage signal is provided to the first pixel set as a variable frequency signal, and includes a first period during which the first voltage signal is a first frequency signal, a second period during which the first voltage signal is a second frequency signal having a lower frequency than the first frequency signal, and a third period during which the first voltage signal is the first frequency signal.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: February 16, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeon Kyoo Kim, Jun Yong Song, Jae Keun Lim
  • Patent number: 10916200
    Abstract: A display device is provided. The display device includes a display driver circuit, and a display panel including a display area including a plurality of pixels, a non-display area, an empty area enclosed by the plurality of pixels, a first scan driving circuit disposed in a first partial area of the non-display area formed outside of a first side of the display area, at least one first scan line extended towards the empty area from the first scan driving circuit, a second scan driving circuit and disposed in a second partial area of the non-display area formed outside a second side adjacent to the first side of the display area, and at least one second scan line extended towards the empty area from the second scan driving circuit to be connected to at least one second pixel of the plurality of pixels.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: February 9, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyunchang Shin, Yongkoo Her, Joongyu Lee, Songhee Jung, Jaeseung Choi
  • Patent number: 10916219
    Abstract: A display panel, a driving method and a manufacturing method thereof, and a display device are provided. The display panel includes pixel units arranged in an array. Each pixel unit includes a display pixel part, and at least a part of the pixel units are configured to be composite pixel units; each of the composite pixel units further includes an optical detection part; the optical detection part is configured to execute optical signal acquisition operation; and the display pixel part is configured to execute display operation.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: February 9, 2021
    Assignee: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD. & BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Sha Liu
  • Patent number: 10915189
    Abstract: A display device with a built-in touch screen according to the present disclosure includes a display panel, a data driver, a gate driver, a touch sensing unit, a common voltage supplier, and a switch circuit, and further includes a common voltage adjuster to supply different common voltages to touch electrodes of the display panel, thereby resolving a local stain or screen vibration problem occurring on the display panel. Further, a method for driving a display device with a built-in touch screen according to one embodiment includes: switching the display panel from a touch mode to a display mode, generating different common voltages, and supplying two or more of the different common voltages to a plurality of touch electrodes (TE) or groups of touch electrodes (TE), thereby resolving an image quality defect.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: February 9, 2021
    Assignee: LG Display Co., Ltd.
    Inventor: SeonGeun Gim
  • Patent number: 10909895
    Abstract: The present invention provides a correction system (1) in which a control circuit (40) of a display panel (2) generates unevenness correction data to be used for correcting display unevenness. The correction system includes a signal source (11), an imaging device (12), and a control device (13). The signal source outputs a signal for displaying a prescribed reference image on the display panel. The imaging device captures the reference image displayed on the display panel on the basis of the signal from the signal source and generates a captured image. The control device generates unevenness correction data for the display panel on the basis of the captured image. The control device generates unevenness correction data (51, 52) having a plurality of mutually different formats (F1, F2) for the display panel (S15A, S15B), and records the same in a storage unit (21) of the display panel (S16).
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: February 2, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Masaaki Hyodo
  • Patent number: 10898823
    Abstract: Described is a board that is operable as a children's book or puzzle with parts that move, slide or turn on one lateral plane to physically change an illustration or part of the item and, as they slide or turn, activate a noise related to the illustration. The board includes a generally planar top illustrative layer. A bottom base layer is attached with the top illustrative layer. The bottom base layer includes a sensor (e.g., light or touch sensor) and sound generation components for generating a sound based upon actuation of the sensor. A moving component is movably connected with the bottom base layer. Finally, the sensor is connected with the bottom base layer and positioned such that moving the moving component from a first position to a second position exposes the sensor to cause the sound generation components to generate a sound.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: January 26, 2021
    Inventor: William Derraugh
  • Patent number: 10902818
    Abstract: A display device and a method of driving the same are provided. The display device includes a control signal generator that generates a control signal, a first demultiplexer that time-divides a data voltage from a first channel of a data driver and distributes the data voltage from the first channel to two or more data lines, in response to the control signal, a signal delay part that delays the control signal, and a second demultiplexer that time-divides a data voltage from a second channel of the data driver and distributes the data voltage from the second channel to other two or more data lines, in response to the control signal delayed by the signal delay part.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: January 26, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dongju Kim, Soondong Cho, Hoon Jang, Jongwoo Kim, Juno Hur
  • Patent number: 10902816
    Abstract: A driving integrated circuit (IC) and a fan-out compensation method thereof are provided. The driving IC includes a plurality of driving channel circuits, a plurality of output buffer circuits and a compensation control circuit. The input terminals of the output buffer circuits are coupled to the output terminals of the driving channel circuits in a one-to-one manner. The output terminals of the output buffer circuits are coupled a plurality of data lines of a display panel in a one-to-one manner. The compensation control circuit is coupled to the output buffer circuits for adjusting the slew rate of the output terminals of the output buffer circuits to compensate difference in delay times between the data lines of the display panel.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: January 26, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventor: Yu-Shao Liu
  • Patent number: 10904466
    Abstract: A digital correlated double sampling (CDS) circuit includes a first latch circuit, a first converting circuit, a second converting circuit, a second latch circuit, and a calculating circuit. The first latch circuit latches an input phase shift code based on a first control signal to store first and second phase shift codes. The first converting circuit converts the first and second phase shift codes into first and second Gray codes. The second converting circuit converts the first Gray code and the second Gray code into a first binary code and a second binary code. The second latch circuit latches an output of the second converting circuit based on a second control signal to store the first binary code. The calculating circuit operates on the first binary code and the second binary code to generate a third binary code, and outputs the third binary code.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: January 26, 2021
    Inventor: Hyeok-Jong Lee
  • Patent number: 10901138
    Abstract: A light source device supplies a laser light to a display panel. The light source device includes: a light-emitting element configured to emit a laser light; and a light guide plate with a stepped bottom portion, the light guide plate disposed to receive the laser light from the light-emitting element at a side portion. The bottom portion of the light guide plate includes a plurality of reflecting surfaces arranged side by side in a first direction in which the laser light travels.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: January 26, 2021
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Yasuhiro Daiku
  • Patent number: 10901257
    Abstract: Disclosed are a display panel and a display device. In some embodiments of the disclosure, opening support structures are arranged between a first substrate and a second substrate in at least a sub-area corresponding to the largest one of respective first spacings, that is, the opening support structures are arranged in at least the sub-area in which connection segments of touch signal lines are the most sparsely arranged.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: January 26, 2021
    Inventors: Donghua Li, Xiaoli Wei, Xiufeng Zhou, Boping Shen
  • Patent number: 10893606
    Abstract: A display device includes: a display panel including: a substrate foldable about a folding axis of the display device, and a pad portion provided in plurality including a first pad portion and a second pad portion respectively disposed at opposing sides of the folding axis; and a flexible printed circuit film commonly attached to the first pad portion and the second pad portion of the display panel. The flexible printed circuit film commonly attached to the first and second pad portions of the display panel defines a cut-out portion of the flexible printed circuit film which is located on an extension line of the folding axis of the display device.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: January 12, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Heechul Jeon