Patents Examined by Kwang-Su Yang
  • Patent number: 11335286
    Abstract: The present application discloses a display panel and a display device. The display panel includes a substrate, and the substrate is provided thereon with a plurality of data lines. The data lines include an odd-numbered column of data lines and an even-numbered column of data lines. A line width of the odd-numbered column of data lines is greater than a line width of the even-numbered column of data lines.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: May 17, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chuan Wu
  • Patent number: 11334201
    Abstract: A touch pen, a method for controlling the same, a touch control device and a readable storage medium are provided. The touch pen includes: a pen body; and a first controller, a touch sensing circuit and an accommodation part that are arranged on the pen body. The accommodation part is configured to accommodate a fluid, and is coupled to the touch sensing circuit. The touch sensing circuit is configured to contact the fluid in the accommodation part in a case that the pen body is in an inclined posture, detect position information of the fluid in contact with the touch sensing circuit and determine a corresponding reference value based on the position information. The first controller is coupled to the touch sensing circuit, and is configured to output a control signal according to the reference value.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: May 17, 2022
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Meng Wang, Zhixiang Fang, Guanglei Yang
  • Patent number: 11307654
    Abstract: Techniques disclosed herein relate to eye illumination for eye tracking in a near-eye display system. One example of an eye illumination system includes a substrate transparent to visible light and infrared light and configured to be placed in front of an eye of a user, and a shortwave-pass filter on a first surface of the substrate. The shortwave-pass filter includes regions configured to transmit visible light and reflect infrared light in ambient light, and a plurality of windows configured to transmit both visible light and infrared light in the ambient light.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: April 19, 2022
    Assignee: Facebook Technologies, LLC
    Inventors: Qi Zhang, Andrew John Ouderkirk, Robin Sharma, Brian Wheelwright, Robert Dale Cavin
  • Patent number: 11308912
    Abstract: A gate drive circuit includes: N array substrate row drive circuits arranged in cascade, an Nth array substrate row drive circuit is configured for outputting an Nth gate drive signal in response to a signal input terminal receiving a gate drive signal output by an N?1th array substrate row drive circuit to control Nth sub-pixels to charge; N auxiliary circuits, a timing signal input terminal is connected to an Nth timing control signal, a controlled terminal is connected to a pull-up control signal terminal of the N?1th array substrate row drive circuit, and an output terminal is connected to a gate drive signal output terminal; and the Nth auxiliary circuit is configured for controlling the Nth sub-pixels to charge in a determination that the Nth timing control signal connected to the timing signal input terminal and an N?1th pull-up control signal connected to the controlled terminal are both high level.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: April 19, 2022
    Assignees: BEIHAI HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventors: Chiayang Cheng, Chongwei Tang
  • Patent number: 11289039
    Abstract: The present application discloses a gate-driving unit circuit. The gate-driving unit circuit includes an input sub-circuit coupled to an input terminal and a pull-up node, and configured to charge a pull-up node to a turn-on voltage level. Additionally, the gate-driving unit circuit includes a pre-pull-down sub-circuit coupled to a pull-down node, a pre-pull-down node, and a reference voltage terminal, and configured to pull down voltage levels at the pull-down node and the pre-pull-down node to a turn-off voltage level before the pull-up node is charged to the turn-on voltage level. Therefore, potential charging delay in the pull-down node caused by a transistor threshold voltage shift is avoided. The gate-driving unit circuit further includes a pull-down sub-circuit, a pull-down control sub-circuit, a noise-reduction sub-circuit, a reset sub-circuit, and an output sub-circuit to couple with the input sub-circuit and the pre-pull-down sub-circuit to output a gate-driving signal.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 29, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ruifang Du, Zijun Cao, Xiaoye Ma
  • Patent number: 11281060
    Abstract: According to one embodiment, a display device includes a first common electrode, a second common electrode spaced apart from the first common electrode, a first signal line overlapping the first common electrode and the second common electrode, a first metal line overlapping the first signal line and the first common electrode, and a second metal line overlapping the first signal line and the second common electrode and spaced apart from the first metal line. The first metal line includes an extension portion extending between the first common electrode and the second common electrode.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: March 22, 2022
    Assignee: Japan Display Inc.
    Inventor: Masateru Morimoto
  • Patent number: 11263983
    Abstract: According to one embodiment, a display device includes a display panel on which a plurality of pixels having a light emitting element is disposed and a display control unit configured to display an image on the display panel by causing each of the plurality of pixels to emit light based on a pixel signal that defines luminance of each of the plurality of pixels. The display control unit is configured to display the image by decreasing luminance of a first pixel which is a protection target pixel of the plurality of pixels and increasing luminance of a second pixel disposed around the first pixel.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: March 1, 2022
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tsutomu Harada, Kazunari Tomizawa, Kazunori Yamaguchi
  • Patent number: 11257860
    Abstract: A micro LED display panel includes a display area, a plurality of micro light-emitting elements and a plurality of micro control elements. The plurality of micro light-emitting elements is disposed in the display area and include a plurality of first color micro LEDs and a plurality of second color micro LEDs. A light wavelength of each of the first color micro LEDs is different from a light wavelength of each of the second color micro LEDs. The plurality of micro control elements is disposed in the display area, and include a plurality of first color micro circuit-chips and a plurality of second color micro circuit-chips. The plurality of first color micro circuit-chips control the plurality of first color micro LEDs, and the plurality of second color micro circuit-chips control the plurality of second color micro LEDs.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: February 22, 2022
    Assignee: PlayNitride Display Co., Ltd.
    Inventors: Pei-Hsin Chen, Yi-Chun Shih, Yi-Ching Chen, Ying-Tsang Liu, Yu-Chu Li, Tzu-Yang Lin, Yu-Hung Lai
  • Patent number: 11250799
    Abstract: The present disclosure provides a display panel and a display device, and the display panel includes: a plurality of data lines; a plurality of scan lines respectively interlaced with the plurality of data lines and forming a plurality of interlaced points at interlaced positions; and a plurality of pixel units, where each of the pixel units includes a plurality of sub-pixel units, which are arranged in an array of a plurality of columns in a first direction and a plurality of rows in a second direction, and are electrically connected to the plurality of interlaced points in a one-to-one correspondence. The same data line is electrically connected sequentially and alternately with the plurality of sub-pixel units arranged in two adjacent columns in the first direction. The present disclosure also provides a display device comprising the above display panel.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: February 15, 2022
    Assignee: HKC Corporation Limited
    Inventor: Jianfeng Shan
  • Patent number: 11249360
    Abstract: The present disclosure provides an array substrate and a display device. The array substrate includes a plurality of pixel units arranged in a matrix form. When one row of pixel units is charged through a second scanning line, a next row of pixel units is pre-charged through a first scanning line, so as to improve the charging efficiency of the pixel units.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: February 15, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Wenxin Li
  • Patent number: 11244645
    Abstract: A display device includes a display panel and a level shifter. The display panel displays images. The level shifter includes a signal pad through which a clock signal to drive the display panel is output and a reverse signal pad through which a reverse clock signal different from the clock signal is output, and the reverse signal pad is in an electrically floated state.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: February 8, 2022
    Assignee: LG Display Co., Ltd
    Inventors: Se-Dong Park, Soon-Dong Cho, Dong-Ju Kim, Hee-Jung Hong, Jung-Jae Kim
  • Patent number: 11237687
    Abstract: The present disclosure includes systems and methods for touch sensing. An electronic device includes a resistive sheet that is optically transmissive, a number of electrodes electrically coupled to the resistive sheet, the electrodes disposed at an edge of the resistive sheet and spaced apart at predetermined intervals, and a processor coupled to the number of electrodes. The processor is configured to generate, at a first of the electrodes, a first drive signal, generate, at a second of the electrodes, a second drive signal, each drive signal having a different frequency, measure an output of at least one of the electrodes, and determine, based on the output, a location of a touch input on the resistive sheet.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: February 1, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mohammad Abu Saude, Sergio Perdices-Gonzalez, Santiago Ortega-Avila, Pedro Martinez-Lopez, Sajid Sadi, Ernest Rehmatulla Post
  • Patent number: 11238829
    Abstract: A driving method of a display panel and a display device using the same. The driving method includes: obtaining a drive signal of each of sub-pixels on the display panel; determining a first adaptive threshold and a second adaptive threshold according to properties of the sub-pixels; and adjusting the drive signal higher than the first adaptive threshold and lower than the second adaptive threshold, to approach an interval lower than the first adaptive threshold or an interval higher than the second adaptive threshold.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: February 1, 2022
    Assignee: HKC Corporation Limited
    Inventor: Jianfeng Shan
  • Patent number: 11217189
    Abstract: A decrease in a color gamut in a low gradation region is reduced to improve image quality in a liquid crystal panel. Therefore, a color image signal for a liquid crystal display panel in which a display image is generated by light passing through a rear liquid crystal cell and a front liquid crystal cell is converted into a black-and-white image signal by using a predetermined coefficient. Then, the black-and-white image signal thus obtained is subjected to gradation value conversion so as to become a signal for performing gradation expression in a gradation region set as a gradation range in which a color gamut greatly changes in a case where the front liquid crystal cell is driven by the color image signal, and thus a rear image signal serving as the black-and-white image signal for the rear liquid crystal cell is generated.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: January 4, 2022
    Assignee: SONY CORPORATION
    Inventor: Hiroaki Kimura
  • Patent number: 11200857
    Abstract: A pixel signal conversion method, comprising: obtaining a corresponding first stimulus value signal, a corresponding second stimulus value signal, and a corresponding third stimulus value signal according to an initial first subpixel signal, an initial second subpixel signal and an initial third subpixel signal in a pixel signal. When the converted pixel signals are applied to a mixed color display consisting of W, R, G, and B four-color subpixels, the display effect is more approximate to actual presentation of original R, G, and B mixed colors, and the defect of large view color shift is overcome. Also provided is a pixel signal conversion device.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: December 14, 2021
    Assignee: HKC CORPORATION LIMITED
    Inventor: Chih Tsung Kang
  • Patent number: 11198154
    Abstract: Disclosed are a method and an apparatus for converting a musical element so as to provide a vibration in an electronic device. According to various embodiments of the present invention, an electronic device may comprise: a display; a vibration generation apparatus for generating a vibration; and a processor functionally connected to the display and the vibration generation apparatus, wherein the processor is configured to: select multiple frequencies, using a musical element; set at least one vibration on the basis of the selected multiple frequencies; and generate a vibration pattern on the basis of the set vibration. Various elements are possible.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: December 14, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Won Shim, Yonggu Lee, Joongsam Yun, Minkoo Kang
  • Patent number: 11195484
    Abstract: The present disclosure provides a display panel, a method of driving the display panel and a display device. Each signal input sub-circuitry of the display panel includes at least two transistors. A same control signal is applied to control signal lines corresponding to a same signal input sub-circuitry, different control signals are applied to control signal lines corresponding to different signal input sub-circuitries, and time periods within which the different control signals are at active levels are staggered from each other. A sum of width-to-length ratios of channels of the at least two transistors is equal to a first predetermined value, and an overlapping area of the gate electrode of each of the at least two transistors relative to an active layer of the transistor is smaller than a second predetermined value in a direction perpendicular to a base substrate of the display panel.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: December 7, 2021
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lei Li, Jun Fan, Le Ta, Yusheng Liu, Yongqiang Zhang, Mei Li, Yafei Li, Peng Liu, Zhixuan Guo
  • Patent number: 11189234
    Abstract: Provided are a display device and a driving method thereof. The display device includes: a display panel for displaying an image, based on data signals supplied from data lines; a load controller for determining a scale factor for controlling a target luminance of the image displayed in the display panel, based on a load of first image data input from the outside; and a data driver for outputting data signals to the data lines, corresponding to the first image data corrected using the scale factor. The data driver includes a plurality of data driver chips coupled to at least one data line among the data lines. The load controller determines the scale factor, based on at least one of a total load of the first image data and local loads with respect to the respective data driver chips.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: November 30, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Hyun Pyun, Sung In Kang, Kyun Ho Kim
  • Patent number: 11183114
    Abstract: Provided are a display panel, a compensation method thereof and a display device. The display panel includes an organic light-emitting element array, a pixel circuit and a detection circuit; the organic light-emitting element array includes multiple organic light-emitting element groups, and ith organic light-emitting element rows in each organic light-emitting element groups are adjacently arranged; a peripheral circuit region includes a pixel driving circuit, a detection driving circuit, and an integrated driving circuit; in a detection phase, the detection driving circuit provides an enabling signal to the detection circuit; the integrated driving circuit provides a detection signal for the detection circuit, and sequentially detects multiple organic light-emitting element groups in a same organic light-emitting element row; in a display phase, the integrated driving circuit provides the compensation signal to the pixel circuit according to the compensation signal.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: November 23, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yue Li, Xingyao Zhou, Shuai Yang, Mengmeng Zhang
  • Patent number: 11164535
    Abstract: Provided are a display control method and apparatus, a display apparatus, a storage medium, and a computer device. The display control method includes: detecting a picture frame to be output; and controlling a plurality of data lines to output, in a first mode, data signals for displaying the picture frame to be output in in response to detection that the picture frame to be output comprises a reference picture, wherein a signal polarity sequence in the first mode is different from a signal polarity sequence in a second mode, the second mode is an output mode of the plurality of data lines when the picture frame to be output does not comprise a reference picture, the signal polarity sequence is a sequence of polarities of data signals provided by all of the plurality of data lines according to an arrangement order of the plurality of data lines in a display apparatus.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: November 2, 2021
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qingna Hou, Weifan Yang, Na Li