Patents Examined by Nelson Lam
  • Patent number: 11255889
    Abstract: An apparatus includes a first oscillator circuit coupled to a first electrode and a second oscillator circuit coupled to a second electrode. The first and second oscillator circuits oscillate synchronously in response to a capacitance between the first and second electrodes being greater than or equal to a threshold coupling capacitance and asynchronously in response to the capacitance being less than the threshold coupling capacitance. The first and second electrodes are separated by a distance, such that a disturbance within the distance increases the capacitance between the electrodes equal to or above the threshold coupling capacitance. The frequency of the first oscillator circuit is inversely proportional to a capacitance of the first electrode, and the frequency of the second oscillator circuit is inversely proportional to a capacitance of the second electrode.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: February 22, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Peter Spevak
  • Patent number: 11250806
    Abstract: The present disclosure provides a common voltage regulating circuit and a common voltage regulating method, a display driving circuit and a display device, the common voltage regulating circuit is applied to a display panel, and the display panel includes a pixel electrode and a common electrode, the common voltage regulating circuit includes: a first regulating sub-circuit configured to provide a signal from a second signal input terminal to a first signal output terminal under the control of an enabling signal terminal in a power-on stage of the display panel; the first signal input terminal is configured to input a signal to be provided to the common electrode in a display stage of the display panel, the second signal input terminal is configured to input a signal to be provided to the pixel electrode in the power-on stage, the first signal output terminal is coupled with the common electrode.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: February 15, 2022
    Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yizhan Han, Jianwei Sun, Liugang Zhou, Xiaolong Suo
  • Patent number: 11244636
    Abstract: An image display processing method for a display device, an image display processing device, a display device, and a storage medium are provided. The display device includes a backlight unit, the backlight unit includes a plurality of backlight blocks and is driven by a local dimming method. The image display processing method includes: obtaining backlight values of backlight blocks in N rows according to display data, which are transmitted, of pixels corresponding to the backlight blocks in the N rows in a current frame of image; based on the display data of the pixels corresponding to the backlight blocks in the N rows and the backlight values, which are obtained, of the backlight blocks in the N rows, obtaining compensated display data of the pixels corresponding to the backlight blocks in the N rows in the current frame of image.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: February 8, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tiankuo Shi, Lingyun Shi, Zhihua Ji, Xin Duan, Wei Sun
  • Patent number: 11238827
    Abstract: A voltage regulator circuit includes a power chip, a controlling chip, and a regulating chip. The controlling chip is configured to transmit a control signal, the regulating chip is configured to regulate an outputted voltage from the power chip to a preset voltage according to the control signal. The controlling chip is further configured to convert the preset voltage to a reference voltage.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: February 1, 2022
    Assignees: HKC Corporation Limited, Chongqing HKC Optoelectronics Technology Co., Ltd
    Inventor: Xiaoyu Huang
  • Patent number: 11232763
    Abstract: The embodiments of the present disclosure provide a shift register and a driving method thereof, a gate driving circuit, and a display device. The shift register includes a compensation selection circuit, a storage circuit, a blanking input circuit, and a shift register circuit. The compensation selection circuit is configured to provide an input signal to a first node. The storage circuit is configured to store and maintain a voltage difference between a blanking control signal terminal and the first node. The blanking input circuit is configured to provide a blanking input signal to a second node. The shift register circuit is configured to provide a compensation driving signal during a blanking period, and provide a scan driving signal during a display period.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: January 25, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Yongqian Li, Haixia Xu, Can Yuan
  • Patent number: 11232760
    Abstract: A driving method for a display device and a display device are disclosed. The driving method includes: obtaining a pre-display image; obtaining, according to an average of corresponding preset grayscale values of two blue sub-pixels in a pixel group, n sets of target grayscale value pairs of the pixel group by table lookup; and displaying a same pre-display image in m continuous frames of display cycles.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: January 25, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Beizhou Huang
  • Patent number: 11221685
    Abstract: A magneto-electrophoretic medium that can be globally and locally addressed and erased. The medium provides a writeable display with no perceivable lag and the ability to write and erase with only minimal power requirements. In particular, the magneto-electrophoretic medium can be erased by providing a subthreshold electric stimulus and supplementing a second non-electric stimulus that disturbs the written state and allows the magneto-electrophoretic particles to return to their original state.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: January 11, 2022
    Assignee: E Ink Corporation
    Inventors: Crystal Nguyen, Evan Griffith, Seth J. Bishop, Stephen J. Telfer, Kosta Ladavac, Andrew A. Drabek, Sunil Krishna Sainis, Richard J. Paolini, Jr., Samantha Morrill
  • Patent number: 11211000
    Abstract: In a display device including: pixels including a light emitting unit and a plurality of transistors and two-dimensionally arranged in a matrix; and gate wirings of the plurality of transistors formed along a row direction of a pixel array, or an electronic device including the display device, among the plurality of transistors, a gate wiring of a switching transistor connected to an anode electrode of the light emitting unit is formed in a wiring layer different from a gate wiring of another transistor.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: December 28, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Kiwamu Miura, Naobumi Toyomura
  • Patent number: 11195451
    Abstract: The present disclosure provides a voltage compensation circuit and a voltage compensation method, a display driving circuit and a display device. The voltage compensation circuit includes: a voltage analyzing sub-circuit and a gamma voltage generating sub-circuit. The voltage analyzing sub-circuit is coupled to the display panel and configured to obtain pixel voltages of target pixels in the image to be detected; judge whether the display panel is abnormal according to the pixel voltages; generate a compensation control signal in response to that the display panel is abnormal. The gamma voltage generating sub-circuit is coupled to the voltage analyzing sub-circuit and is configured to compensate a gamma voltage corresponding to the image to be detected according to the compensation control signal so as to enable the pixel voltages of the target pixels to be consistent.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: December 7, 2021
    Assignees: HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yizhan Han, Liugang Zhou, Jianwei Sun, Tao Li, Yulong Xiong, Chunheng Zhang, Qing Li
  • Patent number: 11181977
    Abstract: Methods for using a head mounted display (HMD) can detect slippage of the HMD through the use of a comparison between, for example, a calibrated glint reference point and a glint reference point calculated during monitoring of glints during usage of the HMD.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: November 23, 2021
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Wenhui Jia
  • Patent number: 11176904
    Abstract: The present disclosure provides a source driving circuit, a driving method, and a display device. The source driving circuit includes a gamma generating circuit, a gamma regulating circuit, and a control circuit. The gamma regulating circuit is configured to determine, according to a plurality of gamma reference voltage pairs, a first output voltage, a second output voltage, a third output voltage, and a fourth output voltage corresponding to each of the gamma reference voltage pairs. Further, the control circuit is configured to perform driving and displaying with the first output voltage in a first image frame, with the second output voltage in a second image frame, with the third output voltage in a third image frame, and with the fourth output voltage in a fourth image frame.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: November 16, 2021
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhenzhou Xing, Jianjun Wang, Hui Dong, Xiaoshi Liu, Zejun Chen
  • Patent number: 11171186
    Abstract: The present disclosure provides a light-emitting structure, a display panel, a display device, and a control method for a display panel, so as to solve the problem that the user's eyes cannot clearly see the image displayed by the display panel due to ambient light. The light-emitting structure includes a light-emitting unit and a variable reflectivity unit. The light-emitting unit includes a first electrode, a second electrode and a light-emitting layer in between. The first electrode is a transparent electrode. The variable reflectivity unit includes a piezoelectric structure and a layer of liquid reflective material between the first electrode and the piezoelectric structure. A thickness of the layer of the liquid reflective material filled between the piezoelectric structure and the first electrode is changed by deformation of the piezoelectric structure. The light-emitting structure is used to emit light for displaying the image.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: November 9, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Shuang Cheng, Xiangcheng Wang, Jinghua Niu, Qing Zhu
  • Patent number: 11145269
    Abstract: A display apparatus comprises: a display panel; a scanning line drive unit; a plurality of data line drive units to output a data line signal to target data lines; and a timing control unit. A first correction time is set individually for each data line drive unit and a second correction time is set individually for each target data line. The timing control unit transmits the image signal to each data line drive unit, with a delay by the first correction time from a transmission start time for a group of pixels lined up in a row direction based on a first clock signal, and each data line drive unit outputs the data line signal with a delay by the second correction time from an output reference time for target pixels being connected to the target data lines based on a second clock signal synchronized with the first clock signal.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: October 12, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Haruhito Yabuki
  • Patent number: 11145250
    Abstract: Provided herein may be an organic light emitting display device including: pixels coupled both to power source lines and scan lines that are formed on respective horizontal lines, and to data lines formed on respective vertical lines; a scan driver configured to supply scan signals to the scan lines; a first power source driver configured to supply first power sources to the power source lines; and a data driver configured to supply data signals to the data lines. The first power source driver may control light emitting operations of the pixels by successively stopping the supply of the first power sources to the power source lines.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: October 12, 2021
    Inventors: Cheol Min Kim, Dong Won Lee, Jae Keun Lim
  • Patent number: 11137854
    Abstract: A display device of the present invention includes a display panel having gate lines and a shift register configured to provide gate pulses to the gate lines.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: October 5, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Chung Sik Kong, Han In Cho
  • Patent number: 11127341
    Abstract: A light emitting module including a circuit carrier and a plurality of light emitting devices is provided. The circuit carrier includes a first circuit layer, a second circuit layer, a dielectric layer and a plurality of conductive vias. The first circuit layer and the second circuit layer are located at two opposite sides of the dielectric layer. The conductive vias pass through the dielectric layer and two opposite end portions of each of the conductive vias are respectively connected to the first circuit layer and the second circuit layer. The light emitting devices are electrically bonded to the first circuit layer. Moreover, the light emitting devices are disposed in a device disposing area of the circuit carrier and the conductive vias are arranged outside the device disposing area. A display device is also provided.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: September 21, 2021
    Assignee: PlayNitride Inc.
    Inventors: Yun-Li Li, Tzu-Yang Lin, Yu-Hung Lai, Po-Jen Su, Hsuan-Wei Mai
  • Patent number: 11120755
    Abstract: Disclosed are a driving method, a driving device and a driving device of a display panel. The method comprises the following steps of: performing positive driving on a first adjacent sub-pixel of the two adjacent sub-pixels in a second direction in a first time interval, and performing negative driving on a second adjacent sub-pixel of the two adjacent sub-pixels in a second direction in a second time interval, wherein the duration of the first time interval is different from that of the second time interval. Obviously, due to the difference between the positive driving duration and the negative driving duration, the charging ability is different, forming a high-low voltage pixel unit interspersed arrangement, thus improving the color shift.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: September 14, 2021
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chihtsung Kang
  • Patent number: 11119595
    Abstract: The present disclosure relates to a touch display panel and a method for manufacturing the same. The display panel includes: an active area disposed on a substrate and including a light emitting device; a raised area disposed on the substrate, located at a periphery of the active area and including a stacked structure; and a touch sensor disposed on a side of the active area and the raised area away from the substrate, wherein the touch sensor is electrically insulated from the active area and is in electrical contact with the raised area; wherein a thickness of the active area matches a thickness of the raised area to ensure a uniform thickness of the touch display panel, and the raised area is electrically insulated from the active area, and a touch signal sensed by the touch sensor is transmitted via the raised area.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: September 14, 2021
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Wen Tan, Tianyi Cheng, Fei Yu, Meng Li, Tiaomei Zhang
  • Patent number: 11114029
    Abstract: An image display device includes: a pixel array part formed of first to fourth scanning lines arranged in rows, signal lines arranged in columns, pixel circuits in a matrix connected to the scanning lines and signal lines, and a plurality of power source lines which supplies first to third potentials necessary for the operations of pixel circuit; a signal part which supplies a video signal to the signal lines; and a scanner part which supplies a control signal to the first to fourth scanning lines, and in turn scans the pixel circuit for every row, wherein the pixel circuits include a sampling transistor, a drive transistor, first to third switching transistors, a pixel capacitance, and a light emitting device, and a channel length of the drive transistor is made longer than a channel length of the switching transistors to suppress fluctuations in threshold voltage.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: September 7, 2021
    Assignee: Sony Corporation
    Inventors: Junichi Yamashita, Yutaka Mitomi, Tetsuo Minami, Takao Tanikame
  • Patent number: 11106274
    Abstract: An embodiment of a graphics apparatus may include a facial expression detector to detect a facial expression of a user, and a parameter adjuster communicatively coupled to the facial expression detector to adjust a graphics parameter based on the detected facial expression of the user. The detected facial expression may include one or more of a squinting, blinking, winking, and facial muscle tension of the user. The graphics parameter may include one or more of a frame resolution, a screen contrast, a screen brightness, and a shading rate. Other embodiments are disclosed and claimed.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: August 31, 2021
    Assignee: Intel Corporation
    Inventors: Travis T. Schluessler, Joydeep Ray, John H. Feit, Nikos Kaburlasos, Jacek Kwiatkowski, Jefferson Amstutz, Carson Brownlee, Vivek Tiwari, Sayan Lahiri, Kai Xiao, Abhishek R. Appu, ElMoustapha Ould-Ahmed-Vall, Deepak S. Vembar, Ankur N. Shah, Balaji Vembu, Josh B. Mastronarde