Patents Examined by Gerald Johnson
  • Display device
    Patent number: 11217143
    Abstract: A display device includes a substrate, gate lines, a driving circuit, and auxiliary gate lines. The substrate has a display area. The gate lines are disposed on the display area, and are in parallel with a first edge of the display area. The gate lines include a first gate line which is farthest from the first edge. The driving circuit is disposed adjacent to the first edge. The auxiliary gate lines substantially perpendicular to the gate lines are connected to the gate lines, and are in parallel with a second edge of the display area. The auxiliary gate lines include a first auxiliary gate line and at least one auxiliary gate line. The first auxiliary gate line is configured to connect the first gate line to the driving circuit. The at least one auxiliary gate line is disposed between the second edge and the first auxiliary gate line.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: January 4, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Shih-Wei Lin, Chen-Yi Wu
  • Display driving circuit comprising protection circuit
    Patent number: 11205362
    Abstract: There is disclosed an electronic device including a display panel including one or more pixels, one or more gate drivers receiving electric power from a first power supply, and a display driver integrated circuit configured to drive the display panel.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: December 21, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyunjun Park, Hongkook Lee, Donghwy Kim, Dongkyoon Han, Jongkon Bae
  • Gate driving circuit and display substrate
    Patent number: 11205364
    Abstract: A gate driving circuit and a display substrate are provided. The gate driving circuit may provide a driving signal to gate lines, and include output units cascaded to each other and having a same circuit structure. Each output unit includes at least one output transistor, outputs the driving signal to a corresponding gate line through the output transistor, and all the at least one output transistor is coupled to one gate line. The output units are classified as first and second output units. A number of sub-pixels coupled to the gate line corresponding to each first output unit is greater than a number of sub-pixels coupled to the gate line corresponding to each second output unit, and an output capability of at least one output transistor of the first output unit is greater than an output capability of a corresponding output transistor of the second output unit.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: December 21, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Libin Liu, Can Zheng, Yu Feng, Jiangnan Lu
  • Display device using inverted signal and driving method thereof
    Patent number: 11195473
    Abstract: Disclosed are a display device using an inverted signal and a driving method thereof. The display device includes a display panel driving circuit for writing data to pixels, a signal generation unit configured to generate a two-step signal for controlling the display panel driving circuit; a plurality of signal lines configured to connect the display panel driving circuit to the signal generation unit; and a signal inversion circuit configured to receive a two-step signal from the signal generation unit, invert the two-step signal, and supply three-step signals each including a positive polarity voltage, a reference level voltage, and a negative polarity voltage to the signal lines.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: December 7, 2021
    Assignee: LG Display Co., Ltd.
    Inventor: Jae Kwon Chae
  • Luminance control unit and display device including the same
    Patent number: 11183110
    Abstract: A luminance control unit includes: a driving power voltage setting unit configured to determine a driving power voltage to be provided to a display panel, the driving power voltage corresponding to a target brightness, based on a plurality of driving power voltages respectively corresponding to a plurality of reference brightnesses of the display panel; and a gamma voltage setting unit configured to determine a target luminance corresponding to the target brightness, based on a plurality of target luminances respectively corresponding to the plurality of reference brightnesses, and to set gamma voltages for implementing the target luminance, wherein the driving power voltage and the gamma voltages are differently set with respect to the same reference brightness according to an ambient illumination intensity of the display panel.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: November 23, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si Beak Pyo, Sung Kook Kim
  • Display device
    Patent number: 11176900
    Abstract: A display device that is suitable for increasing in size is achieved. Three or more source lines are provided for each pixel column. Video signals having the same polarity are input to adjacent source lines during one frame period. Dot inversion driving is used to reduce a flicker, crosstalk, or the like.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: November 16, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hajime Kimura
  • Display driving circuit, operation method thereof, and operation method of optical-based MURA inspection device configured to extract information for compensating MURA of display panel
    Patent number: 11170687
    Abstract: An operation method of a display driving circuit configured to drive a display panel includes receiving input data from an external device, determining a gray level period corresponding to the input data from among a plurality of gray level periods, based on a plurality of thresholds, calculating a final compensation value based on the determined gray level period and a reference look-up table generated based on a reference gray level, performing MURA compensation on the input data based on the final compensation value to generate final data, and controlling the display panel based on the final data.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: November 9, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Pil-Seung Heo, Sang-Kyo Han
  • Display device and driving device thereof
    Patent number: 11170685
    Abstract: A display device and a driving device thereof is disclosed. The driving device is coupled to a display panel. The driving device includes at least one first driver integrated circuit (IC) and at least one second driver integrated circuit (IC). The first driver integrated circuit is coupled to the display panel. The first driver integrated circuit drives the display panel and detects a first working temperature. The second driver integrated circuit is coupled to the display panel and the first driver IC. The second driver integrated circuit drives the display panel. The first driver IC stops driving the display panel and communicates with the second driver IC to stop driving the display panel when the first working temperature is substantially higher than a first given temperature.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: November 9, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Jhih-Ming Liao, Chun-Yu Liao, Teng-Jui Yu
  • Driving unit, gate driving circuit, array substrate, and display apparatus
    Patent number: 11170684
    Abstract: The present disclosure relates to a driving unit. The driving unit may include a first driving sub-circuit, a second driving sub-circuit, and a driving control circuit. The first driving sub-circuit may include a plurality of first switching demerits, and at least some of the plurality of first switching elements may be configured to output a first signal to a first output terminal of the driving unit in response to a control signal from the driving control circuit. The second driving sub-circuit may include one or more second switching elements, and at least one of the one or more second switching elements may be configured to output a second signal to a second output terminal of the driving unit in response to the control signal from the driving control circuit. The driving control circuit may be configured to output the control signal at a control signal output terminal.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: November 9, 2021
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jianbo Xian, Chunping Long, Hui Li, Yong Qiao
  • Apparatus for transmitting message and method thereof
    Patent number: 11165903
    Abstract: Disclosed are an apparatus for transmitting a message and a method thereof that perform a preset message transmission function or a preset line break function by selecting a character key on a message input screen displayed on the apparatus for transmitting a message and then pressing another character key displayed in a preset color around the selected character key for a preset time or longer so that the efficiency of keyboard input is enhanced and the convenience of a user inputting text is improved.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: November 2, 2021
    Inventor: Ko Eun Shin
  • Gate driving unit and method, gate driving module and circuit and display device
    Patent number: 11158226
    Abstract: The present disclosure provides a gate driving unit and method, a gate driving module and circuit, and a display device. The gate driving unit includes: an external compensation control signal output terminal, a gate driving signal output terminal, an external compensation control signal output circuit, a gate driving signal output circuit, a pull-up control circuit and a pull-down node control circuit.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: October 26, 2021
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Touch display device, touch display panel, and driving circuit
    Patent number: 11150757
    Abstract: Disclosed are a touch display device, a touch display panel, and a driving circuit. More specifically, the present disclosure provides a touch display device, a touch display panel, and a driving circuit which can simultaneously perform display driving and touch driving through a ground modulation technique.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: October 19, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Hoon Jang, SoonDong Cho, Wonyong Jang
  • Residual image detection method and apparatus of display panel
    Patent number: 11151963
    Abstract: Provided are a residual image detection method and apparatus of a display panel, and a display device. The method includes: controlling a display panel to display a chessboard picture for a preset duration, controlling the display panel to display a pure color picture having a third grayscale, the pure color picture includes multiple pure color sub-pictures, and each of pure color sub-picture includes a middle area and multiple edge areas surrounding the middle area; detecting a luminance of each of the multiple edge areas in the pure color picture; and calculating the residual image quantization value of each of the multiple edge areas according to the luminance of each of the multiple edge areas and a formula, and determining a residual image quantization value of the display panel according to residual image quantization values of the multiple edge areas.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: October 19, 2021
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Jiafeng Dai, Ronghua Li
  • Array substrate, display panel and display device
    Patent number: 11151913
    Abstract: Some embodiments of the present disclosure provide an array substrate, a display panel and a display device. The array substrate includes a test circuit located in a non-display area, wherein the test circuit includes at least one stage of subcircuit, and the subcircuit includes at least one demux; except the first stage of subcircuit, the input ends of the demuxes in the subcircuit are connected with corresponding output ends of the demuxes in the previous stage of subcircuit; except the last stage of subcircuit, the output ends of the demuxes in the subcircuit are connected with corresponding input ends of the demuxes in the next stage of subcircuit; and the input end of the demux in the first stage of subcircuit is connected with a test terminal, and the output ends of the demuxes in the last stage of subcircuit are connected with signal lines in a display area.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: October 19, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Chunping Long
  • Display device and method of driving the same
    Patent number: 11145236
    Abstract: A display device includes: a display unit including a plurality of pixels to display an image according to a driving voltage; a data driver to provide data signals to the plurality of pixels; a gamma voltage generator to provide a plurality of grayscale voltages to the data driver; and a reference voltage generator to provide a first reference voltage and a second reference voltage to the gamma voltage generator. The gamma voltage generator is to generate the plurality of grayscale voltages by dividing the first reference voltage and the second reference voltage, and the reference voltage generator is to generate a sensing driving voltage by measuring the driving voltage from the display unit, and to generate the first reference voltage and the second reference voltage by utilizing the sensing driving voltage and a reference driving voltage.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: October 12, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventor: Eun Ryeol Baek
  • Gesture-based transitions between modes for mixed mode digital boards
    Patent number: 11137903
    Abstract: Disclosed is a method and system for providing gesture-based transitions while using a digital whiteboard. The present disclosure relates to a method for gesture-based transitions for interacting with a digital whiteboard comprising the steps of receiving information relating to a first pointer down event; receiving information relating to a first pointer up event; comparing the information relating to the pointer down event to the information relating to the pointer up event; and transitioning from a first interactive mode to a second interactive mode based on the comparison.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: October 5, 2021
    Assignee: Pathway Innovations and Technologies, Inc
    Inventors: Ji Shen, FengGang Wu
  • Key display method, terminal, and non-transitory computer-readable medium
    Patent number: 11132123
    Abstract: A key display method, a terminal, and a non-transitory computer-readable medium. The method includes: displaying a first user interface and a navigation bar, the navigation bar including a target virtual key; receiving a first operation signal; launching a target application program in response to the first operation signal; switching the first user interface to display a second user interface of the target application program, and switching the target virtual key in the navigation bar to display an image capture key.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: September 28, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Hong Li
  • Display device
    Patent number: 11127331
    Abstract: A display device includes a plurality of pixel structures, a plurality of first connection conductive wires and a plurality of second connection conductive wires. Each of the pixel structures includes a plurality of sub-pixels structures respectively corresponding to a plurality of display wavelengths. The sub-pixels structures are respectively coupled to a plurality of first data lines and second data lines. Each of the first connection conductive wires connects two of the first data lines coupled to two of the sub-pixels corresponding to same display wavelength. Each of the second connection conductive wires connects two of the second data lines coupled to two of the sub-pixels corresponding to same display wavelength.
    Type: Grant
    Filed: November 8, 2020
    Date of Patent: September 21, 2021
    Assignee: Au Optronics Corporation
    Inventors: Ya-Ling Hsu, Yueh-Hung Chung, Min-Tse Lee, Chen-Hsien Liao
  • Display device and driving method thereof
    Patent number: 11120724
    Abstract: Provided are a display device and a driving method thereof. The display device includes a display panel including a plurality of pixels defined by allowing a plurality of gate lines and a plurality of data lines to intersect each other; a timing controller generating a gate control signal, a data control signal, a MUX clock signal, and image data; a gate driving circuit sequentially providing gate signals to the plurality of gate lines based on the gate control signal; a data driving circuit supplying a data signal to the plurality of data lines based on the image data and the data control signal to drive the pixels; and a MUX circuit receiving the data signal and outputting the data signal in a time division manner to the data lines according to the MUX clock signal. The timing controller includes a slew rate control unit controlling a slew rate of the MUX clock signal.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: September 14, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Daeyong Kim
  • Driver device and driving method for display panel
    Patent number: 11120721
    Abstract: The present disclosure illustrates a driver device and a driving method for a display panel. The driver device includes a source driver module, M positive output buffer modules, a positive input selection module, a positive output selection module, N negative output buffer modules, a negative input selection module and a negative output selection module. The driver device selects, according to the drive polarity and magnitude of the inputted drive signal, the corresponding positive output buffer module or negative output buffer module for data buffering of the display panel.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: September 14, 2021
    Assignees: HKC Corporation Limited, Chongqing HKC Optoelectronics Technology Co., Ltd.
    Inventor: Wenqin Zhao