Patents Examined by Ngan T Pham Lu
  • Patent number: 11636829
    Abstract: A display device includes a display panel including a first display area and a second display area adjacent to the first display area, a processor configured to generate first image data corresponding to the first and second display areas for a first mode, and to generate second image data corresponding to the first display area for a second mode, and a display driver configured to drive the display panel in response to the first image data in the first mode, and to drive the display panel in response to the second image data in the second mode, wherein a supplementary image is displayed in at least a portion of the second display area in the second mode.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: April 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Hye Kim, Jae Hyeon Jeon
  • Patent number: 11636814
    Abstract: A display device includes an array of LEDs, an array of LCD pixels, and a display controller. The display controller is configured to compensate for one or more sources of color variation in light produced by the LEDs. The display controller can determine a first color variation at a given LCD pixel based on the distance between the given LCD pixel and one or more LEDs. The display controller can also determine a second color variation at the given LCD pixel based on a current level supplied to the one or more LEDs. The display controller configures the given LCD pixel to filter light that is received from the one or more LEDs in a manner that reduces or eliminates either or both of the first and second color variations.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: April 25, 2023
    Assignee: NVIDIA Corporation
    Inventor: Gerrit Slavenburg
  • Patent number: 11609444
    Abstract: A measurement system for measuring a motion picture response time (MPRT) of a liquid crystal display (LCD) has a computer and a measurement device. The computer controls a display panel of the LCD to switch between a plurality of different gray levels. The measurement device measures variations of brightness of the display panel when the display panel switches its gray level. The computer obtains at least a gray level response time (GLRT) normalized curve according to results of measuring the variations of the brightness. The computer integrates the at least a GLRT normalized curve to obtain at least an MPRT normalized curve, obtains at least a time interval of the at least an MPRT normalized curve, and calculates an average of the at least a time interval to obtain the MPRT of the LCD.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: March 21, 2023
    Assignee: Realtek Semiconductor Corp.
    Inventors: Yung-Chih Chen, Wei-Chih Lin, Jui-Te Wei, Po-An Chen
  • Patent number: 11592918
    Abstract: The present disclosure provides a flexible touch panel and a display device. The flexible touch panel includes a flexible substrate baseplate, and a touch electrode layer including a plurality of touch electrodes arranged on the flexible substrate baseplate. The flexible touch panel includes at least one bendable area, and at least one of the plurality of touch electrodes has a cutoff region within the bendable area to disconnect the touch electrode.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: February 28, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lingran Wang, Tian Dong, Shiming Shi
  • Patent number: 11567725
    Abstract: Performing data processing on a mobile device, where the mobile device includes a first display, a second display and a second touch panel; the first display is configured to: display a home screen which comprises an icon of a first application; display iconic controls of a first application in response to detecting a first gesture on the icon of the first application; the second display is configured to: display a first GUI of the first application in response to detecting the first gesture; the second touch panel is configured to: detect a second gesture on the second touch panel; display a second GUI of the first application on the second display in response to detecting the second gesture, wherein maintaining display iconic controls of the first application on the first display when displaying the second GUI on the second display.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: January 31, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Juan Lan, Shuangxiong Wen, Qiang Peng
  • Patent number: 11568809
    Abstract: A pixel circuit includes first to fifth transistors, a capacitor, and a light emitting element. The first transistor is coupled between first and second power lines, and includes a gate electrode coupled to a first node and a back-gate electrode coupled to a second node. The second transistor is coupled between a data line and the first node, and includes a gate electrode coupled to a first scan line. The third transistor is coupled between a third power line and the first node, and includes a gate electrode coupled to a reference scan line. The fourth transistor is coupled between a second node and a fourth power line, and includes a gate electrode coupled to a second scan line. The fifth transistor is coupled between a first power line and the one electrode of the first transistor, and includes a gate electrode coupled to a light-emitting control line.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: January 31, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Hwi Kim, Na Young Kim, Chul Ho Kim, Wang Jo Lee, Jin Jeon
  • Patent number: 11468821
    Abstract: The disclosure provides a source driving circuit adapted to a display panel. The source driving circuit includes a data channel and a control circuit. The data channel is configured to be coupled to a data line of the display panel and drive the data line of the display panel sequentially according to first display data and second display data. The first display data corresponds to a first scan line of the display panel, and the second display data corresponds to a second scan line of the display panel next to the first scan line of the display panel. The control circuit is coupled to the data channel and is configured to control a time point that the data channel outputs the second display data according to similarity between the first display data and the second display data.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: October 11, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventor: Cheng-Tsu Hsieh
  • Patent number: 11462179
    Abstract: A liquid crystal display device includes a first liquid crystal display panel of a field sequential type, a second liquid crystal display panel of a color filter type disposed on a back face side of the first liquid crystal display panel, and a backlight configured to emit white light on a back face side of the second liquid crystal display panel.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: October 4, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masakatsu Tominaga, Masahiro Yoshida
  • Patent number: 11450259
    Abstract: The present application discloses a driving method and a driving system for a display panel. The driving method includes: dividing the display panel into two compensation regions in units of sub-pixels; and outputting a driving voltage according to the compensation region which a sub-pixel belongs to.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: September 20, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Wenqin Zhao, Wei Chen
  • Patent number: 11430838
    Abstract: A display device includes a flexible display module and provides a display area including a fingerprint recognition area, and a non-display area outside the display area. The flexible display module includes a display panel including a light-emitting element, a touch sensing unit disposed on the display panel, and a fingerprint recognition unit overlapping with the fingerprint recognition area. The touch sensing unit is configured to sense pressure applied to the flexible display module in an in-folding mode in which the flexible display module is folded such that a portion of the display area faces another portion of the display area.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: August 30, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Seung-Iyong Bok
  • Patent number: 11393366
    Abstract: An example calibration device includes a projector projecting a first light region including a first area onto and extending over a border of a non-patterned touch mat. A camera captures a first image of the first light region. A processor establishes a first set of four corner coordinates of the touch mat. The projector projects a second light region including a second area onto the touch mat. The second area is smaller than the first area. The camera captures a second image of the second light region. The processor performs a perspective transformation of the second image using the first set of corner coordinates and a resolution of the second light region to get a second set of four corner coordinates of the touch mat in a coordinate plane of the projector. The processor aligns the first and second set of four corner coordinates.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: July 19, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Xiangfei Qian
  • Patent number: 11392246
    Abstract: The disclosure provides a method for driving an OLED touch-and-display device, a driving circuit, and the OLED touch-and-display device. The method includes: dividing each display frame into at least one display period and at least one touch detection period which are alternated; during each display period, generating sequentially-shifted gate driving signals and sequentially-shifted light-emission control signals, and sequentially applying them to at least a part of gate driving lines of the plurality and corresponding light-emission control lines; during each touch detection period: suspending the generation of gate driving signals or also suspending the generation of light-emission control signals; adjusting the average display luminance of a plurality of rows of pixels within a predetermined time period, so that the display luminance is uniform, and the gate driving signal for each row of pixels and the light-emission control signal of the light-emission control line maintain a preset timing relationship.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: July 19, 2022
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Chun-Hung Chen, Kai-Wen Shao, Feng-Lin Chan, Shuo-Wen Jang
  • Patent number: 11393369
    Abstract: The present application relates to an overcurrent protection module, comprising a first output terminal, a detection circuit, a first conversion circuit, and a main control circuit. The first output terminal is used for outputting a drive signal; the detection circuit is used for detecting an output current of the first output terminal; the first conversion circuit is used for converting the output current into a voltage, and the voltage comprises a first voltage and a second voltage; the main control circuit is used for transmitting a control signal to control the first conversion circuit to transmit the first voltage or the second voltage to the main control circuit; the main control circuit is further used for calculating an effective value of the output current according to the first voltage and the second voltage, and controlling the output of the drive signal from the first output terminal.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: July 19, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Mingliang Wang
  • Patent number: 11380240
    Abstract: The preset disclosure provides a display control method, a timing controller IC and a display device. The method includes: acquiring a preset grayscale voltage of a target pixel unit and a backlight brightness of a backlight region corresponding to the target pixel unit, in a current output display frame; outputting a first grayscale voltage to the target pixel unit if the backlight brightness of the corresponding backlight region is less than or equal to a first preset brightness value; outputting a second grayscale voltage to the target pixel unit if the backlight brightness of the corresponding backlight region is greater than the first preset brightness value; wherein the second grayscale voltage is greater than the first grayscale voltage, and both the second grayscale voltage and the first grayscale voltage are greater than the preset grayscale voltage.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: July 5, 2022
    Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhenlin Qu, Liugang Zhou, Ke Dai, Tao Li, Yulong Xiong, Yizhan Han, Jianwei Sun, Liu He, Yunyun Liang, Jun Wang, Qing Li, Xutong Chen, Liwei Zhou, Xiaofeng Yin
  • Patent number: 11367371
    Abstract: Disclosed are a display panel and a display device. The display panel includes a substrate defining a display area, a fan-out area and a source driving chip. A feedback line is arranged in the display area. The source driving chip has a first state and a second state. When the source driving chip is in the first state, a first data signal is input by the source driving chip to the feedback line; when the source driving chip is in the second state, a voltage of the feedback line is fed back to the source driving chip, to allow the source driving chip to output a second data signal to a remaining line of the display area. In each column, a summed number of the first data signal is equal to a summed number of the second dpata signal.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: June 21, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Zhi Xiong
  • Patent number: 11327589
    Abstract: A display panel with an embedded touch screen and a display device comprising the display panel can decrease parasitic capacitance. The display panel with an embedded touch screen includes a light emitting element layer that is disposed on a substrate including an emission area and a non-emission area, an encapsulation layer that is disposed on the light emitting element layer, and a touch sensing layer that is disposed on the light emitting element layer. The light emitting element layer includes a first electrode that is disposed in the emission area on the substrate, a light emitting layer that is disposed on the first electrode, and a second electrode that is disposed on the light emitting layer and has an opening area provided in a part of the non-emission area.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: May 10, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Sein Son, Jinsuk Lee
  • Patent number: 11315462
    Abstract: TA dual source driver includes first and second gamma voltage generators configured to generate first and second gamma voltages, respectively, first and second latches configured to latch first and second data, respectively, a first driving cell configured to receive the first gamma voltage and the first data, and to transmit a first voltage corresponding to the first data and the first gamma voltage to a panel load based on a first switching operation, and a second driving cell configured to receive the second gamma voltage and the second data, and to transmit a second voltage corresponding to the second data and the second gamma voltage to the panel load based on a second switching operation. The first switching operation and the second switching operation may operate complementarily to each other.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: April 26, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sungho Lee, Hohak Rho, Junjae Lee
  • Patent number: 11315511
    Abstract: A common electrode of a display panel is disclosed. The common electrode is located at a side of a gate driving device of the display panel, and the common electrode includes multiple main trunk electrodes arranged sequentially along a row direction, along the row direction, from a side closed to the gate driving device to a side away from the gate driving electrode, in adjacent two main trunk electrodes, a common voltage on a previous main trunk electrode is less than or equal to a common voltage on a next main trunk electrode, and a common voltage of a first main trunk electrode is less than a common voltage on a last main trunk electrode. The present invention can reduce the uneven display caused by RC delay on the transmission of the scanning signal.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: April 26, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yuanfu Liu
  • Patent number: 11307720
    Abstract: Particular embodiments described herein provide for an electronic device that can be configured to include a touchscreen that includes one or more biosensors. The touchscreen can include drive lines, sense lines, a photoconductive material, one or more biosensing areas, a touchscreen engine, and a biosensor engine. In a touchscreen mode, the touchscreen engine can be configured to couple with the sense lines and determine a place on the touchscreen where a user touched. In a biosensing mode, the biosensor engine can be configured to use the drive lines or sense lines and determine biometrics of the user.
    Type: Grant
    Filed: December 28, 2019
    Date of Patent: April 19, 2022
    Assignee: Intel Corporation
    Inventor: Sean Jude William Lawrence
  • Patent number: 11302264
    Abstract: A display device may include rows of pixels that display image data on a display and a circuit. The circuit may receive pixel data value of image data for a pixel in a first row of the rows of pixels, determine a weight factor to apply to the pixel data value based on a position of the first row with respect to the other rows, such that each row is associated with a current-resistance (IR) drop across the display. The weight factor is determined based on a respective IR drop associated with the first row. The circuit may also generate a weighted pixel data value based on the weight factor and the pixel data value and send the weighted pixel data value to a display driver circuit that renders the image data via the display.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: April 12, 2022
    Assignee: Apple Inc.
    Inventors: Shengkui Gao, Marc Joseph DeVincentis, Yue Jack Chu, Sinan Alousi, Mohammad Hajirostam, Mohammad Ali Jangda, Koorosh Aflatooni, Pierre-Yves Emelie, Yafei Bi, Paolo Sacchetto, Kasra Omid-Zohoor