Liquid Crystal Display Elements (lcd) Patents (Class 345/87)
  • Patent number: 11501709
    Abstract: The embodiment of the present disclosure provides a display panel and a display device. The display panel includes: a first sub-pixel configured to display a first color, a second sub-pixel configured to display a second color, and a third sub-pixel configured to display a third color; when a picture displayed by the display panel is switched from a black picture to a picture having a maximum gray scale of the first color, the second color and the third color, respectively, a ratio of a brightness of a first frame of picture to a maximum value among brightness of stabilized several frames of pictures is a first initial frame brightness proportion, a second initial frame brightness proportion and a third initial frame brightness proportion, respectively; the first, second and third initial frame brightness proportions have a Max-Min less than or equal to a threshold.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: November 15, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Chengji Deng, Dongyu Gao, Huihui Li, Han Nie, Jia Chen, Xin Li, Gen Zhao
  • Patent number: 11500146
    Abstract: A backlight unit is described. The unit includes a light emitting array having a plurality of light sources configured to emit light, and a printed circuit board on which the light sources are arranged; a light guide film configured to guide light emitted from the light sources in one direction; a color conversion layer configured to convert light that has passed through the light guide film into light of a specific color; and an optical member disposed on the color conversion layer. The light sources include first light sources arranged on a first row of the printed circuit board, and second light sources arranged on a second row of the printed circuit board. The first light sources are spaced apart from each other by a predetermined distance, and the second light sources are spaced apart from each other by the predetermined distance.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: November 15, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Wee Joon Jeong, Sang Woon Jung
  • Patent number: 11489035
    Abstract: A display device includes: a substrate; an insulating layer on the substrate and including a first opening; a first panel pad on the substrate and the insulating layer; and an anisotropic conductive film on the first panel pad, and the first panel pad includes a center area located at a center of the first opening, and a first edge area and a second edge area arranged along a lateral side of the insulating layer and located on respective sides of the center area with respect to a first direction, and the anisotropic conductive film overlaps at least one of the center area, the first edge area, and the second edge area of the first panel pad.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: November 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Ho Moon, Chun Gi You
  • Patent number: 11488520
    Abstract: A pixel includes a first light source including at least one first light emitting element between a first split electrode and a second power supply; a second light source unit including at least one second light emitting element between a second split electrode and the second power supply; a driving-current generator including a first transistor between a first power supply and the first and second light source units and generating a driving current corresponding to a first data signal; a first switching unit including a first switching element between the driving-current generator and the first light source; and a second switching unit including a second switching element between the driving-current generator and the second light source unit and controlling an electrical connection between the first and second light source units in response to a second data signal.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: November 1, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yo Han Lee, Su Mi Moon, Hyun Min Cho
  • Patent number: 11488514
    Abstract: The present application discloses a display apparatus and a drive method thereof. The display apparatus includes a display panel, and a panel chive circuit configured to drive the display panel; and a timing controller respectively transmits a signal to source drivers and a gate driver via the bus.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: November 1, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Wenqin Zhao
  • Patent number: 11488542
    Abstract: An organic light emitting display device includes: a display panel including a plurality of pixel rows each including first pixel groups alternating with second pixel groups; a gate driver configured to provide a first group gate signal to the first pixel groups, and to provide a second group gate signal to the second pixel groups; a data driver configured to output data voltages to a plurality of output line groups; and a connection controller configured to connect the output line groups to a first data line group in response to a first connection control signal, and to connect the output line groups to a second data line group in response to a second connection control signal.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: November 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Changnoh Yoon, Jin-Wook Yang
  • Patent number: 11488524
    Abstract: An organic light emitting diode (“OLED”) display device, which operates in a variable frame mode, includes a display panel including a plurality of pixels, a power management circuit which supplies a power supply voltage to the plurality of pixels, and a controller which determines a panel load, a first representative gray level and a second representative gray level by analyzing input image data, determines an initial level of the power supply voltage based on the panel load and the first representative gray level, and determines a step level of the power supply voltage based on the panel load and the second representative gray level. The power management circuit generates the power supply voltage having the initial level during an active period, and gradually increases a voltage level of the power supply voltage from the initial level based on the step level during a variable blank period.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: November 1, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kihyun Pyun, Geonhwi Park, Jungeon An
  • Patent number: 11482149
    Abstract: The present disclosure relates to a display driving device, a display apparatus, a display driving method and a signal controlling device. The signal controlling device includes a scanning signal controlling device configured to output a scanning signal that initiates a scanning of a pixel array, and an image data segmenting device configured to receive the scanning signal and a data signal representing a frame of image from a data source, and to segment the data signal in response to the scanning signal to output a first set of image data signals and a second set of image data signals. The first set of image data signals comprises data information of a first set of column pixels in the frame of image and the second set of image data signals comprises data information of a second set of column pixels in the frame of image.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: October 25, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventor: Zhu Wang
  • Patent number: 11480802
    Abstract: An electronic eyewear device includes a frame having a first electronic subsystem that includes a near-eye graphical display, a temple portion having a second electronic subsystem, and a hinge assembly rotatably coupling the frame to the temple portion. According to an example, the hinge assembly includes a hinge core defining a hinge axis, a cover that spans a gap between the frame and the temple portion on at least one side of the hinge axis, and a flexible ribbon circuit electrically coupling the first electronic subsystem to the second electronic subsystem. In at least some examples, the flexible ribbon circuit spirals around the hinge core between the cover and the hinge core.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: October 25, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Teresa Elizabeth Tombelli
  • Patent number: 11475846
    Abstract: A display apparatus can include an Nth scan driving stage among a plurality of scan driving stages, which outputs an Nth scan signal to an Nth pixel and an N+1th pixel among the plurality of pixels, in accordance with a scan start signal and a plurality of gate clock signals. Further, an Nth reset driving stage among the plurality of reset driving stages outputs an Nth reset signal to the Nth pixel in accordance with a reset start signal and the plurality of gate clock signals. The Nth scan driving stage and the Nth reset driving stage can be symmetrical with respect to a plurality of gate clock signals lines to which a plurality of gate clock signals is applied, and an anode electrode of the light emitting diode included in the Nth pixel can be initialized in accordance with the Nth reset signal.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: October 18, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Junggyu Lee
  • Patent number: 11475847
    Abstract: A display apparatus can include an Nth scan driving stage among a plurality of scan driving stages, which outputs an Nth scan signal to an Nth pixel and an N+1th pixel among the plurality of pixels. Further, an N+1th scan driving stage among the plurality of scan driving stages is configured to output an N+1th scan signal to the N+1th pixel among the plurality of pixels, and a Kth reset driving stage among the plurality of reset driving stages is configured to output a Kth reset signal to the Nth pixel and the N+1th pixel. An anode electrode of a light emitting diode in each of the Nth pixel and the N+1th pixel is initialized in accordance with the Kth reset signal.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: October 18, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Junggyu Lee, Kyoung-June Jung, SangHyun Lim
  • Patent number: 11462142
    Abstract: A slew rate boosting circuit, a source driver chip and a display device are provided in the present disclosure. The slew rate boosting circuit comprises: a first latch configured to receive and store first data; a second latch configured to receive and store second data, the second data being next to the first data; a first level shifter; an amplifier; and a slew rate boosting module configured to receive a high voltage data signal as current input data, and adjust a slew rate of an output stage of the amplifier according to a value of a specified bit of the first data, a value of a specified bit of the second data and the current input data.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: October 4, 2022
    Inventors: Sangmin Park, Jangjin Nam
  • Patent number: 11460708
    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: April 28, 2021
    Date of Patent: October 4, 2022
    Assignee: Mentor Acquisition One, LLC
    Inventors: Ralph F. Osterhout, Robert Michael Lohse
  • Patent number: 11455964
    Abstract: This application discloses a driving method for a display panel, a driving circuit, and a display device. The driving method for a display panel includes steps of: obtaining resolution of source data; obtaining resolution of a current display panel; obtaining an adjusted display area corresponding to the source data; and displaying on the display panel according to the adjusted display area after a data operation is performed according to the resolution of the source data and the resolution of the current display panel.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: September 27, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Bin Qiu
  • Patent number: 11455948
    Abstract: An electronic device according to various embodiments of the disclosure includes a memory storing an image, a display, and a processor. The processor is configured to display the image on the display, to select at least one pixel, which is displayed on the display at less than specified brightness, from among pixels included in the image, to increase brightness of the selected at least one pixel, and to shift the image displayed on the display. Other embodiments are also possible.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: September 27, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Young Il Yoon
  • Patent number: 11450355
    Abstract: A semiconductor memory with temperature dependence is provided. The semiconductor memory includes a memory array, a temperature sensor circuit and a pump circuit. The temperature sensor circuit is configured to provide a temperature dependent signal. The pump circuit is coupled to the temperature sensor circuit and the memory array. The pump circuit is configured to output a charge-pump output voltage to the memory array according to the temperature dependent signal. The charge-pump output voltage depends on the temperature dependent signal.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: September 20, 2022
    Assignee: Powerchip Semiconductor Manufacturing Corporation
    Inventor: Jun Setogawa
  • Patent number: 11443702
    Abstract: A display device includes: a liquid crystal display panel including a liquid crystal between two substrates; and first, second, and third light sources emitting light in different colors. A light emission period includes a first light emission period is which luminance of the first light source is higher than luminance of the second and third light sources, and at least one of the second and third light sources emits light, a second light emission period in which the luminance of the second light source is higher than the luminance of the first and the third light sources, and at least one of the first and third light sources emits light, and a third light emission period in which the luminance of the third light source is higher than the luminance of the first and second light sources, and at least one of the first and second light sources emits light.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: September 13, 2022
    Assignee: Japan Display Inc.
    Inventor: Hisashi Tomitani
  • Patent number: 11435639
    Abstract: The present disclosure relates to a privacy film and a display device including the privacy film, and more specifically, to a privacy film capable of reducing a viewing angle by including a first substrate, a first electrode disposed on the first substrate, a plurality of light blocking patterns disposed on the first electrode, a light transmission layer disposed on the first electrode and the plurality of light blocking patterns and including a plurality of capsules, a second electrode disposed on the light transmission layer, and a second substrate disposed on the second electrode, and a display device including the privacy film.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: September 6, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sooyoun Kim, SeongYong Uhm, Seong-Il Kim, SeokHo Lee
  • Patent number: 11430399
    Abstract: A driving method and a driving device of a display panel are provided. According to the display panel of the present application, subpixels adjacent in a row direction of the display array have different polarities, and subpixels adjacent in a column direction of the display array have different polarities. Adjacent subpixels have different voltages and are alternately arranged with a higher voltage or a lower voltage. The common electrode voltage required for operating picture of each frame is periodically changed by the driving device, with operational picture of two frames of the display panel taken as one driving cycle. With respect to different frames, different common electrode voltages are correspondingly applied to drive subpixels in the display array, reducing the occurrence rate of viewing angle color shift of display panel.
    Type: Grant
    Filed: September 27, 2020
    Date of Patent: August 30, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Jianfeng Shan
  • Patent number: 11431954
    Abstract: A display method includes the following operations. Multiple first image data are received by a processor through a graphics card. Multiple first image data are analyzed based on an artificial intelligence model by the processor. Multiple second image data are transmitted to the display by the processor. Multiple second image data include multiple first image data, at least one compensation image data between adjacent two of multiple first image data, or combinations thereof.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: August 30, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Wei-Ting Hsu, Yen-Wen Fang
  • Patent number: 11422419
    Abstract: A display device includes: a substrate; a gate line disposed on the substrate and extending in a first direction; a gate insulating layer disposed on the gate line; a data line disposed on the gate insulating layer and extending in a second direction crossing the first direction; a gate voltage supply line disposed on the gate insulating layer and extending in the second direction, the gate voltage supply line connected to the gate line; a passivation layer disposed on the data line and the gate voltage supply line; a shielding electrode disposed on the passivation layer; an insulating layer disposed on the shielding electrode; and a pixel electrode disposed on the insulating layer and overlapping the shielding electrode.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: August 23, 2022
    Inventors: Na Hyeon Cha, Sun Kwun Son
  • Patent number: 11423845
    Abstract: Provided are a source driver integrated circuit (IC) according to the present disclosure including a first buffer in which first sensing data transmitted from a first source driver IC is stored, a sensing data generation circuit configured to sense a characteristic of a driving element included in each pixel and generate second sensing data, a second buffer in which the second sensing data is stored, a control circuit configured to generate a selection signal in response to an operation command, and a selector configured to transmit one of the first sensing data stored in the first buffer and the second sensing data stored in the second buffer to a second source driver IC in response to the selection signal.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: August 23, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: You Jin Kwon, Sang Kwon Kim, Chang Sung Hong, Pyeong Keun Oh, Jun Ho Kwak
  • Patent number: 11422458
    Abstract: Architecture and designs of modulating both amplitude and phase at the same time in spatial light modulation are described. According to one aspect of the present invention, nano-imprinting lithograph (NIL) and E-beam are used to create micro structures (transparent) as alignment cells. A first group of the alignment cells are oriented in a first direction and a second group of the alignment cells are oriented in a second direction, light going through the first group of the alignment cells is modulated in amplitude thereof and the light going through the second group of the alignment cells is modulated in phase thereof, all via the liquid crystals and at the same time.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: August 23, 2022
    Inventors: Darwin Hu, Cheng Hsing Liao
  • Patent number: 11422043
    Abstract: A pressure sensor 1 according to the first aspect of the invention includes: a substrate 50; and a functional element 40 which is laid on the substrate 50 and is composed of functional titanium oxide including crystal grains of at least one of ?-phase trititanium pentoxide (?-Ti3O5) and ?-phase trititanium pentoxide (?-Ti3O5) and having the property that at least a portion of crystal grains of at least one of ?-phase trititanium pentoxide (?-Ti3O5) and ?-phase trititanium pentoxide (?-Ti3O5) change into crystal grains of titanium dioxide (TiO2) when the functional titanium oxide is heated to 350° C. or higher. The substrate 50 includes a substrate thin-film section 51 having a thin film form in which the thickness in the stacking direction of the substrate 50 and the functional element 40 is smaller than that in the other directions.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: August 23, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshitaka Nakamura, Tsutomu Furuta, Hiroyoshi Yoden, Mitsuo Yaguchi, Takeshi Ueda
  • Patent number: 11423859
    Abstract: A display control apparatus includes a data driver, a timing controller, and a control circuit. The data driver a data output circuit that is configured to output data signals. The timing controller is configured to output data control signals that control the signal input of the data driver and include a frame start signal VS1 and a conventional signal VS2. The control circuit is electrically connected with the timing controller and the data output circuit (211), and is configured to input signals to the data output circuit according to the data control signals.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: August 23, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Mingliang Wang
  • Patent number: 11409114
    Abstract: Provided is an image display device including a display element configured to modulate light to form an image; a light transfer unit configured to transmit the image formed by the display element to eyes of an observer, the light transfer unit comprising a focusing member; and a driver configured to drive the display element to change a position of the display element, the driver including: a first actuator comprising a deformable wire; a housing that fixes a first end and a second end of the deformable wire; and an operating structure through which the deformable wire is routed, wherein the operating structure is configured move the display element in a first direction in conjunction with a length variation of the deformable wire, and the operating structure includes an elastic structure configured to prevent tilt with respect to an axis in the first direction.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: August 9, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Bongsu Shin, Jesung Koh, Geeyoung Sung, Hongseok Lee, Dongjin Kim, Baekgyeom Kim
  • Patent number: 11410581
    Abstract: A display apparatus includes: an inspection TFT of which a drive output of a gate driver circuit is connected to a gate electrode and a drive output of a source driver circuit is connected to a source electrode; and an abnormality detection circuit unit that receives an output from a drain electrode of the inspection TFT to detect an abnormality of the gate driver circuit or the source driver circuit, and, in a period in which the drive output of the gate driver circuit is high, the abnormality detection circuit unit determines as abnormal when an output voltage from the drain electrode of the inspection TFT is out of a predetermined voltage range.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: August 9, 2022
    Assignee: Trivale Technologies
    Inventor: Shuzo Yamaguchi
  • Patent number: 11411072
    Abstract: Disclosed are a display substrate, a display device, a manufacturing method and a repairing method. A capacitor structure in the display substrate includes a first electrode and a second electrode. The first electrode includes a first main body portion extending in a first direction, first branch portions extending in a second direction, and a first connection portion connecting the first branch portions to the first main body portion. The second electrode includes a second main body portion extending in the first direction, second branch portions extending in the second direction, and a second connection portion connecting the second branch portions to the second main body portion. One side of the first electrode having the first branch portions faces one side of the second electrode having the second branch portions, and each first branch portion and a corresponding second branch portion form a capacitor.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: August 9, 2022
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Huafeng Liu, Shengwei Zhao, Chaochao Sun, Chao Wang, Jingping Lv, Lin Xie, Guoqing Zhou, Panpan Zhang, Tengfei Wang, Hsinghua Pan, Lele Li, Zhiqiang Chang, Shaocong Dang, Shijie Mu, Zhen Wang
  • Patent number: 11410613
    Abstract: A display device can include a display panel comprising a first display area and a second display area that differ in the number of sub-pixels per unit area, a gamma part that generates a first area gamma voltage applied to the first display area and a second area gamma voltage applied to the second display area, and a data driver that generates data voltages by applying the first area gamma voltage to video data displayed in the first display area and applying the second area gamma voltage to video data displayed in the second display area and supplies the data voltages to the sub-pixels in the corresponding areas.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: August 9, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Wonsuk Lee, Hyunjae Lee
  • Patent number: 11403980
    Abstract: A discharge control circuit for a display panel includes a flip-flop configured to generate a representation of a power supply voltage of the display panel based on the power supply voltage, the representation of the power supply voltage enabling a discharge condition under which a pixel array of the display panel is discharged to be not satisfied upon power-on or during operation of the display panel and to be satisfied upon shutdown of the display panel; and a level shifter configured to level-shift timing signals for controlling operation of the pixel array, to provide the level-shifted timing signals to the display panel, and to initiate discharge of the pixel array in response to the discharge condition being satisfied.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: August 2, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jianjun Wang, Min Wang, Rui Ma
  • Patent number: 11402960
    Abstract: The present application provides a touch panel and a display device. The touch panel includes: a substrate, a touch electrode, and a light-shielding layer provided corresponding to the touch electrode. The light-shielding layer is used to shield light reflected by the touch electrode. The display device using the touch panel can reduce ambient light reflected by the touch electrode. While ensuring that the display device realizes a touch control function, contrast and color saturation of the display device are not affected, and confidentiality of private information under wide viewing angles is ensured.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: August 2, 2022
    Assignee: Wuhan China Star Optoelectronies Semiconductor Display Technology Co., Ltd.
    Inventor: Dan Lin
  • Patent number: 11398203
    Abstract: Provided are a drive device and a drive method for a display panel, the drive method comprising: first, acquiring a first common voltage; next, determining a preset threshold according to the first common voltage; and finally, outputting a second common voltage according to the first common voltage and the preset threshold. By means of the present drive method for the display panel, it is only necessary to adjust one common voltage, and another common voltage will automatically follow on the basis of the preset threshold, thus achieving the goal of fixing a voltage difference.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: July 26, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Mingliang Wang
  • Patent number: 11393420
    Abstract: A display device, a pixel circuit and its driving method and driving device. The driving method includes the steps of, during a frame sequence formed by successive X frames of image displaying, outputting gate signals and data signals to the pixel circuit in a first preset mode; during a frame sequence formed by successive Y frames and adjacent to the frame sequence formed by successive X frames of image displaying, outputting gate signals and data signals to the pixel circuit in a second preset mode, wherein the first preset mode is different from the second preset mode, and X and Y are positive integers not less than 2. The method can enable the charging time of the pixel circuit to be balanced in space, thereby improving image display quality.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: July 19, 2022
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kun Li, Dayu Zhang, Yifei Zhan, Xiaohan Ling
  • Patent number: 11393388
    Abstract: A shift register circuit and a method for driving the same, a gate driving circuit and a display device are provided. The shift register circuit includes an input terminal, a first control signal terminal, a second control signal terminal, and an output terminal, and further includes: an input module configured to receive an input signal input by the input terminal under the control of a first control signal input by the first control signal terminal and a second control signal input by the second control signal terminal; a storage module configured to store the input signal; a transmission module configured to transmit the input signal stored by the storage module to a preset node; and an output module configured to output a high level signal or a low level signal through the output terminal under the control of the input signal at the preset node.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: July 19, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Han Yue, Minghua Xuan, Can Zhang, Can Wang, Dongni Liu, Xiaochuan Chen
  • Patent number: 11393418
    Abstract: The present application discloses a method, device and system for data transmission, and a display device, and belongs to the field of manufacturing of a liquid crystal panel. The method is applied to a controller. The controller is connected to a plurality of driver chips connected in parallel via a first signal line, and the plurality of driver chips is sequenced according to a response feedback sequence. The method comprises: generating a data request instruction; sending, via the first signal line, a data request instruction; receiving, via the first signal line, the data response instructions sequentially sent by the plurality of driver chips according to the response feedback sequence, wherein each of the data response instructions comprises an identity of a corresponding driver chip and data of the corresponding driver chip. The present application may enrich the function of the first signal line and improve the utilization rate.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: July 19, 2022
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xin Duan, Hsinchung Lo, Ming Chen, Xibin Shao
  • Patent number: 11387281
    Abstract: An array substrate, a display panel, and a display device.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: July 12, 2022
    Assignee: Yungu (Gu'an) Technology Co., Ltd.
    Inventors: Zhenghang Xin, Junhui Lou, Meng Zhang
  • Patent number: 11386824
    Abstract: A display device and a power management chip are provided. The power management chip includes a rising-edge trigger, detecting rising edges of a pulse signal; a first counter, configured to calculate the number of the rising edges; a falling-edge trigger, detecting falling edges of the pulse signal; a second counter, configured to calculate the number of the falling edges of the pulse signal; an adder, configured to sum up the number of the rising edges and the number of the falling edges of the pulse signal; and a digital-to-analog converter, electrically connected to the adder, configured to convert to a target voltage based on the sum obtained by the adder. In such a way, the poweron time of the power management chip is reduced.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: July 12, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Rui Ju
  • Patent number: 11379077
    Abstract: A touch panel input device includes a plurality of first electrode lines, a plurality of second electrode lines, a first drive circuit, a second drive circuit, a drive controller, a reception circuit, and a touch detector. The first drive circuit inputs a first drive signal to odd-numbered first electrode lines which are odd-numbered electrode lines among each of the plurality of first electrode lines from a first end portion side. The second drive circuit inputs a second drive signal to even-numbered first electrode lines which are even-numbered electrode lines among each of the plurality of first electrode lines from a second end side. The touch detector detects a touch on the touch surface based on a change in an output signal detected by the reception circuit.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: July 5, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Koichi Sugiyama
  • Patent number: 11380234
    Abstract: Provided herein is a circuit for ageing display panel, including an ageing signal input circuit, a power input circuit and a power output circuit, in which the ageing signal input circuit and the power input circuit are independently connected to the power output circuit, and the power output circuit is connected to a load; the ageing signal input circuit is configured to receive an ageing signal and output the ageing signal to the power output circuit; the power input circuit is configured to provide a supply voltage for the power output circuit; and the power output circuit is configured to output the received supply voltage to the load.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: July 5, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Wenxin Li
  • Patent number: 11373616
    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: December 3, 2020
    Date of Patent: June 28, 2022
    Assignee: LAPIS Semiconductor Co., Ltd.
    Inventors: Kenichi Shiibayashi, Keigo Otani
  • Patent number: 11372301
    Abstract: A display device includes a first conductive layer including horizontal scan lines, and island-type electrodes, which are spaced apart from the horizontal scan lines; a first insulating layer disposed on the first conductive layer; a second conductive layer disposed on the first insulating layer, the second conductive layer including data lines, and a plurality of vertical scan lines; a second insulating layer disposed on the second conductive layer; and a third conductive layer disposed on the second insulating layer and including first shield electrodes, which cover first edges of the vertical scan lines, and second shield electrodes, which are spaced apart from the first shield electrodes, and cover second edges of the vertical scan lines, wherein the vertical scan lines are electrically connected to the island-type electrodes via contact holes that extend through the first insulating layer.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: June 28, 2022
    Inventors: Si Hyun Ahn, Na Hyeon Cha, Sun Kwun Son
  • Patent number: 11367404
    Abstract: Embodiments of the present disclosure provide a device and a method for controlling backlight, and a display device. The device for controlling backlight, comprising: a first controlling circuit configured to receive a first power supply signal for controlling a display device to be turned on or off, and generate an output signal for causing a backlight module of the display device to be turned off, in response to the first power supply signal being in a first status for controlling the display device to be turned off; and a second controlling circuit configured to receive the first power supply signal, and generate an output signal for causing the backlight module to be turned on again after being kept in a turned off state for a predetermined time period, in response to the first power supply signal being in a second status for controlling the display device to be turned on.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: June 21, 2022
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jianting Wang, Zhanchang Bu, Shou Li, Hengyu Yan, Xiaokang Hou
  • Patent number: 11366366
    Abstract: The active matrix substrate includes gate lines, data lines, photoelectric conversion elements provided in pixels bounded by the gate lines and the data lines and electrically connected to the data lines, and a bias line that is connected to the photoelectric conversion elements and supplies a bias voltage to the photoelectric conversion elements. The active matrix substrate also includes first protection circuits connected to the data lines, second protection circuits connected to the gate lines, and third protection circuits connected to the bias line. Each of the first protection circuits, second protection circuits, and third protection circuits includes at least one nonlinear element. A nonlinear element in each first protection circuit has a higher resistance than a nonlinear element in at least one of each second protection circuit and each third protection circuit.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: June 21, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Hiroyuki Moriwaki
  • Patent number: 11361718
    Abstract: An image processing device reduces power consumption of a backlight by lowering a dimming value through brightness distribution for pixels. The image data processing device includes: an image analyzing circuit configured to analyze original image data on a video image divided into a plurality of regions and calculate a representative brightness value for each region; a dimming value calculating circuit configured to calculate a dimming value for each region in order to adjust the brightness of a backlight according to the representative brightness value; a pixel analyzing circuit configured to analyze brightness distribution for a plurality of pixels in each region; a dimming control circuit configured to re-adjust the dimming value for one region according to the brightness distribution; and a dimming output circuit configured to output, to a backlight driving device, a dimming control signal for driving the backlight according to the dimming value.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: June 14, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Ji Won Lee, Jung Eun Baek, Xin Cui, Do Hoon Lee
  • Patent number: 11360595
    Abstract: A touch display device, including a substrate and multiple light-emitting units bonded to the substrate, is provided. Each of the multiple light-emitting units includes at least one light-emitting element. A first light-emitting unit of the multiple light-emitting units includes at least one sensing element. In the first light-emitting unit, the at least one sensing element is located between the at least one light-emitting element and the substrate. The orthographic projection of the at least one sensing element on the substrate overlaps the orthographic projection of the at least one light-emitting element on the substrate.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: June 14, 2022
    Assignee: Au Optronics Corporation
    Inventors: Guan-Wu Chen, Chun-Yen Kuo
  • Patent number: 11361721
    Abstract: Disclosed are a method and a device for driving a display panel, and a display device. The method includes: S200, detecting a frequency of a data output control signal TP1 when data is transmitted for the display panel, recording and storing the frequency as a first frequency F1; S300, judging whether the data output control signal TP1 works in a preset working time; S400, detecting a frequency of the data output control signal when the data output control signal TP1 works in the preset working time, recording and storing the frequency as a second frequency F2; and S600, calculating a frequency of a polarity control signal according to the first frequency F1 and the second frequency F2, and generating the polarity control signal according to the calculated frequency to drive the display panel.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: June 14, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Mingliang Wang
  • Patent number: 11362151
    Abstract: A display apparatus may include a first plurality of pixels, a substrate, a first signal line, and a load matching device. The substrate may include a first opening, a first non-display area, and a main display area. The first non-displaying area may at least partially surround the first opening. The main display area may support the first plurality of pixels. The first signal line may be electrically connected to the first plurality of pixels, may overlap the main display area, and may overlap the first non-display area. The load matching device may overlap the first non-display area and may provide a first electrical load to the first signal line.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: June 14, 2022
    Inventors: Seung-Lyong Bok, Sunho Kim
  • Patent number: 11356113
    Abstract: A digital-to-analog conversion circuit includes: a decoder that, if set to a first selection state, selects two different reference voltages from a reference voltage group on the basis of a digital data signal and outputs the two reference voltages as first and second selection voltages, and if set to a second selection state, selects two reference voltages from the reference voltage group in a manner allowing redundancy and outputs the two reference voltages as the first and second selection voltages; and an amplifier circuit that amplifies and outputs a voltage obtained by averaging a combination of the first and second selection voltages with weighting factors set in advance.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: June 7, 2022
    Assignee: LAPIS SEMICONDUCTOR CO., LTD.
    Inventor: Hiroshi Tsuchi
  • Patent number: 11354003
    Abstract: A device for spatially resolving a projected capacitive touch detection. The device includes an electrically insulating substrate with a first and a second type of electrically conductive surfaces, and a through-hole. The first type of electrically conductive surfaces are connected in rows to form transmitting electrodes. The second type of electrically conductive surfaces are connected in columns to form receiving electrodes. The first type of electrically conductive surfaces includes non-deformed first type of electrically conductive surfaces and deformed first type of electrically conductive surface(s). The second type of electrically conductive surfaces includes non-deformed second type of electrically conductive surfaces and deformed second type of electrically conductive surface(s). The first type of electrically conductive surfaces and the second type of electrically conductive surfaces are arranged in an alternating manner.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: June 7, 2022
    Assignee: PREH GMBH
    Inventors: Rainer Schlegelmilch, Jochen Schlereth
  • Patent number: 11355046
    Abstract: The GOA circuit includes a plurality of GOA units independent of each other, wherein each of the plurality of GOA units comprises an enable module and a drive module disposed corresponding to the enable module; wherein the enable module includes a row address signal input terminal configured to receive a row address signal, and an enable signal output terminal configured to output an enable signal based on the row address signal; and the drive module includes an enable signal input terminal configured to receive the enable signal output by the enable signal output terminal, and a drive signal output terminal configured to output a drive signal based on the enable signal, wherein the drive signal output terminal is connected to a gate line of a row disposed corresponding to the drive module to transmit the drive signal to the gate line of the row and gate the row.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: June 7, 2022
    Assignee: Shenzhen Royole Technologies Co., Ltd.
    Inventor: Ximeng Guan