Patents by Inventor Lijun Xiao

Lijun Xiao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200098311
    Abstract: The disclosure discloses a drive circuit, a display panel, a display device, and a method for driving the display panel; wherein the drive circuit includes a plurality of shift register groups including at least one shift register, and a clock signal input sub-circuit; the clock signal input sub-circuit is configured to input clock signals to respective shift registers in the plurality of shift register groups through a plurality of clock signal lines for controlling outputs of the respective shift registers, wherein durations of valid levels of clock signals applied to a same shift register group are same, and durations of valid levels of clock signals applied to different shift register groups are different.
    Type: Application
    Filed: April 22, 2019
    Publication date: March 26, 2020
    Inventors: Yihjen HSU, Xiuqin ZHANG, Lijun XIAO, Shaohong GAO, Zhiyou LIU, Yanan ZHAO
  • Publication number: 20200066219
    Abstract: The present disclosure provides a display method of a curved display panel, and a curved display device. The display method of the curved display panel according to the present disclosure includes: obtaining a radius of curvature of the curved display panel and acquiring image data, wherein the image data includes a gray scale corresponding to each sub-pixel; and determining a data voltage output to each sub-pixel according to the radius of curvature and a gray scale corresponding to the sub-pixel.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 27, 2020
    Inventors: Yihjen HSU, Xiuqin ZHANG, Lijun XIAO, Shaohong GAO, Zhiyou LIU, Yanan ZHAO
  • Publication number: 20200058362
    Abstract: A shift register unit, a driving method and a gate driving circuit are provided. The shift register unit includes a pull-up node control circuit, a pull-down node control circuit, a capacitor circuit, an output circuit and a noise reduction adjustment circuit. The noise reduction adjustment circuit is connected to a pull-down node and a first level input end, and configured to reduce an increasing rate of a potential at the pull-down node within a noise reduction time period of a maintenance phase, and reduce a decreasing rate of the potential at the pull-down node within a non-noise-reduction time period of the maintenance phase.
    Type: Application
    Filed: March 12, 2019
    Publication date: February 20, 2020
    Applicants: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhicai XU, Jia SUN, Lijun XIAO
  • Publication number: 20200013365
    Abstract: The present disclosure provides a gate on-state voltage supply unit, a gate on-state voltage supply method, a display driving module and a display device. The gate on-state voltage supply unit is used in the display device including a display driving module. The gate on-state voltage supply unit includes a shutdown determination module and a voltage supply module. The shutdown determination module is configured to determine whether the display device has been shut down, and when the display device has been shut down, transmit a boosting control signal to the voltage supply module. The voltage supply module is configured to, upon the receipt of the boosting control signal, boost a gate on-state voltage to acquire a boosted gate on-state voltage, and apply the boosted gate on-state voltage to a gate driving circuit of the display driving module.
    Type: Application
    Filed: May 13, 2019
    Publication date: January 9, 2020
    Applicants: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhiyou LIU, Yihjen HSU, Lijun XIAO, Shaohong GAO, Jinjia LUO, Yanan ZHAO, Xiuqin ZHANG
  • Patent number: 10490113
    Abstract: The present application discloses a voltage shift circuit and a driving method thereof, a driving device and a display apparatus. The voltage shift circuit includes: a first input terminal, a second input terminal, a first voltage terminal, a second voltage terminal, and an output terminal. The first input terminal is configured to input a first signal. The second input terminal is configured to input a second signal. The first voltage terminal is configured to input a first voltage. The second voltage terminal is configured to input a second voltage. The output terminal is configured to output an output signal. The voltage shift circuit is configured to lower the first voltage to an output voltage within a first time using the first signal, and to raise the second voltage to the output voltage within a second time using the second signal. The first time partially overlaps with the second time.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: November 26, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xianyong Gao, Shuai Hou, Lijun Xiao, Bo Xu, Siqing Fu, Xu Lu, Qiang Yu, Lisheng Liang, Shuai Chen, Fei Shang
  • Patent number: 10482836
    Abstract: A gate driver, a configuration system, and configuration method thereof is provided. The gate driver is used for providing a gate drive signal for a TFT array substrate and comprises at least a drive capability detection module and a drive capability adjustment module. The configuration system is configured to configure the driving capabilities of a plurality of gate drivers and comprises a controller provided outside the plurality of gate drivers. The driving capability of the gate driver becomes adjustable and configurable. The well balance of the drive capabilities of the drive control signals received by the different TFT array regions driven by the plurality of gate drivers configured by the configuration system can avoid the occurrence of a splitting-screen phenomenon.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: November 19, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xianyong Gao, Yihjen Hsu, Lijun Xiao, Shuai Hou, Bo Xu, Lisheng Liang, Siqing Fu, Fei Shang, Haijun Qiu
  • Patent number: 10332461
    Abstract: It is provided a grayscale voltage debugging method for debugging a display device including a white subpixel, including a first step of, in a state where the white subpixel is disenabled and subpixels in other colors are enabled, adjusting a respective to-be-adjusted grayscale voltage applied to each of the subpixels in other colors, so that a first actually-measured Gamma curve corresponding to the respective adjusted grayscale voltage is located within an acceptable range of a standard Gamma curve, and a second step of, in a state where the white subpixel and the subpixels in other colors are all enabled, acquiring a second actually-measured Gamma curve and in the case that the second actually-measured Gamma curve is not located within the acceptable range, changing the respective adjusted grayscale voltage to obtain a new respective to-be-adjusted grayscale voltage, and returning to the first step.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: June 25, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shuai Chen, Zhi Zhang, Lijun Xiao, Shaoru Li, Keke Gu, Zhihui Wang, Taoliang Tang, Qian Qian, Zhijian Qi, Yi Dan, Lisheng Liang
  • Publication number: 20190103046
    Abstract: The present application discloses a voltage shift circuit and a driving method thereof, a driving device and a display apparatus. The voltage shift circuit includes: a first input terminal, a second input terminal, a first voltage terminal, a second voltage terminal, and an output terminal. The first input terminal is configured to input a first signal. The second input terminal is configured to input a second signal. The first voltage terminal is configured to input a first voltage. The second voltage terminal is configured to input a second voltage. The output terminal is configured to output an output signal. The voltage shift circuit is configured to lower the first voltage to an output voltage within a first time using the first signal, and to raise the second voltage to the output voltage within a second time using the second signal. The first time partially overlaps with the second time.
    Type: Application
    Filed: February 6, 2018
    Publication date: April 4, 2019
    Inventors: Xianyong GAO, Shuai HOU, Lijun XIAO, Bo XU, Siqing FU, Xu LU, Qiang YU, Lisheng LIANG, Shuai CHEN, Fei SHANG
  • Patent number: 10247993
    Abstract: A display panel, a display device and a method for repairing a disconnected line. The display panel comprises a lower substrate and a repair circuit. The lower substrate comprises data lines. The repair circuit comprises a proximal repair circuit, a distal repair circuit and an amplifier circuit. An input terminal of the amplifier circuit is electrically connect to a signal input terminal of a disconnected data line, and an output terminal of the amplifier circuit is electrically connect to a terminal of the proximal repair circuit and a terminal of the distal repair circuit respectively; another terminal of the proximal repair circuit is connect to a terminal of the disconnected data line that is close to the signal input terminal, and another terminal of the distal repair circuit is connect to a terminal of the disconnected data line that is away from the signal input terminal.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: April 2, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO, LTD.
    Inventors: Lisheng Liang, Lijun Xiao, Shuai Hou, Yih jen Hsu, Fei Shang, Hai jun Qiu, Bo Xu, Siqing Fu, Xianyong Gao, Shuai Chen
  • Patent number: 10242638
    Abstract: A display adjusting device, a power source circuit, a display device and a display adjusting method are provided. The display adjusting device includes a start signal detection unit, configured to, in a case that a gate drive circuit including multiple stages of gate drive circuit units scans multiple rows of gate lines arranged in the display panel, detect a gate drive signal outputted by a last row of shift register unit included in each stage of gate drive circuit unit, where the gate drive signal serves as a start signal of a next stage of gate drive circuit unit adjacent to the stage of gate drive circuit unit, and a gamma main voltage setting unit, configured to set a corresponding gamma main voltage based on the start signal.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: March 26, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Lisheng Liang, Yihjen Hsu, Lijun Xiao, Shuai Hou, Fei Shang, Xianyong Gao, Shuai Chen
  • Publication number: 20190073972
    Abstract: A driving method for a display panel, a driving device for a display panel and a display panel in the field of display technology are disclosed. The driving method for a display panel, after the display panel is powered on and before its boot is formally completed, includes steps of: obtaining a first resolution of a to-be-displayed picture and/or text for a turn-on welcome tableau and a second resolution of a display screen, respectively, reconstructing the to-be-displayed picture and/or text according to the second resolution of the display screen, such that the resolution of the reconstructed to-be-displayed picture and/or text is adapted to the second resolution of the display screen, and transferring the reconstructed to-be-displayed picture and/or text to the display screen for display.
    Type: Application
    Filed: October 17, 2017
    Publication date: March 7, 2019
    Inventors: Xianyong GAO, Shuai HOU, Lijun XIAO, Xu LU, Siqing FU, Bo XU, Lisheng LIANG, Qiang YU, Xiaojun ZUO, Shuai CHEN, Xiuzhu TANG, Fei SHANG
  • Patent number: 10192513
    Abstract: The present disclosure provides a circuit for processing a voltage of a pixel electrode and a display apparatus. The circuit for processing a voltage of a pixel electrode comprises: a first input terminal configured to input an original voltage of the pixel electrode; a second input terminal configured to input a voltage of a common electrode; and an output terminal configured to output a processed voltage of the pixel electrode, wherein the circuit for processing a voltage of a pixel electrode is configured to superimpose the voltage of the common electrode on the original voltage of the pixel electrode, to acquire a voltage which is stable with respect to the voltage of the common electrode as the processed voltage of the pixel electrode.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: January 29, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Siqing Fu, Shuai Chen, Xianyong Gao, Lisheng Liang, Bo Xu, Lijun Xiao, Yin-Jen Hsu, Fei Shang, Shaohong Gao
  • Publication number: 20180366073
    Abstract: It is provided a grayscale voltage debugging method for debugging a display device including a white subpixel, including a first step of, in a state where the white subpixel is disenabled and subpixels in other colors are enabled, adjusting a respective to-be-adjusted grayscale voltage applied to each of the subpixels in other colors, so that a first actually-measured Gamma curve corresponding to the respective adjusted grayscale voltage is located within an acceptable range of a standard Gamma curve, and a second step of, in a state where the white subpixel and the subpixels in other colors are all enabled, acquiring a second actually-measured Gamma curve and in the case that the second actually-measured Gamma curve is not located within the acceptable range, changing the respective adjusted grayscale voltage to obtain a new respective to-be-adjusted grayscale voltage, and returning to the first step.
    Type: Application
    Filed: September 14, 2016
    Publication date: December 20, 2018
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shuai CHEN, Zhi ZHANG, Lijun XIAO, Shaoru LI, Keke GU, Zhihui WANG, Taoliang TANG, Qian QIAN, Zhijian QI, Yi DAN, Lisheng LIANG
  • Patent number: 10134353
    Abstract: The present application discloses a display panel having a plurality of gate lines and a gate driving circuit for driving the plurality of gate lines, the gate driving circuit including a plurality of first cascaded shift register units and a plurality of second cascaded shift register units for applying gate scanning signals to gate lines connected thereto.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: November 20, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shuai Chen, Xu Lu, Lijun Xiao, Zhi Zhang, Daoping Yu, Keke Gu, Siqing Fu, Zhijian Qi, Wenlong Feng, Guanyu Zhou, Mengjie Wang
  • Patent number: 10121403
    Abstract: The present disclosure provides a gate turn on voltage compensating circuit, a display panel, a driving method and a display apparatus thereof. The gate turn on voltage compensating circuit includes a voltage generation module, a clock control module and a chamfering module. The voltage generation module is used for correspondingly outputting generated first voltage signal and second voltage signal to a first voltage input terminal and a second voltage input terminal of the chamfering module; the clock control module is used for controlling the chamfering module to output corresponding chamfered voltage signals in the corresponding time periods, so that the chamfering depths of gate turn on voltage signals input correspondingly to respective gate drive chips in different time periods are different.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 6, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xu Lu, Yih Jen Hsu, Fei Shang, Haijun Qiu, Lijun Xiao, Shuai Hou
  • Publication number: 20180239206
    Abstract: A display panel, a display device and a method for repairing a disconnected line. The display panel comprises a lower substrate and a repair circuit. The lower substrate comprises data lines. The repair circuit comprises a proximal repair circuit, a distal repair circuit and an amplifier circuit. An input terminal of the amplifier circuit is electrically connect to a signal input terminal of a disconnected data line, and an output terminal of the amplifier circuit is electrically connect to a terminal of the proximal repair circuit and a terminal of the distal repair circuit respectively; another terminal of the proximal repair circuit is connect to a terminal of the disconnected data line that is close to the signal input terminal, and another terminal of the distal repair circuit is connect to a terminal of the disconnected data line that is away from the signal input terminal.
    Type: Application
    Filed: August 26, 2016
    Publication date: August 23, 2018
    Inventors: Lisheng LIANG, Lijun XIAO, Shuai HOU, Yih jen HSU, Fei SHANG, Hai jun Qiu, Bo XU, Siqing FU, Xianyong GAO, Shuai CHEN
  • Patent number: 10037737
    Abstract: The present disclosure provides a common voltage adjustment circuit, a common voltage adjustment method, a display panel and a display device. The common voltage adjustment circuit includes: a filter unit; and a control unit configured to, at a compensation stage, enable a common voltage feedback line to be electrically disconnected from a second input end of a common voltage negative-feedback amplification unit and enable a reference common voltage output end to be electrically connected to the second input end of the common voltage negative-feedback amplification unit through the filter unit, and at a non-compensation stage, enable the common voltage feedback line to be electrically connected to the second input end of the common voltage negative-feedback amplification unit and enable the reference common voltage output end to be electrically disconnected from the second input end of the common voltage negative-feedback amplification unit.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: July 31, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shuai Chen, Zhi Zhang, Lijun Xiao, Yuanbo Zhang
  • Publication number: 20180108320
    Abstract: The present application discloses a display panel having a plurality of gate lines and a gate driving circuit for driving the plurality of gate lines, the gate driving circuit including a plurality of first cascaded shift register units and a plurality of second cascaded shift register units for applying gate scanning signals to gate lines connected thereto.
    Type: Application
    Filed: August 16, 2016
    Publication date: April 19, 2018
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shuai Chen, Xu Lu, Lijun Xiao, Zhi Zhang, Daoping Yu, Keke Gu, Siqing Fu, Zhijian Qi, Wenlong Feng, Guanyu Zhou, Mengjie Wang
  • Publication number: 20180047357
    Abstract: The present disclosure provides a common voltage adjustment circuit, a common voltage adjustment method, a display panel and a display device. The common voltage adjustment circuit includes: a filter unit; and a control unit configured to, at a compensation stage, enable a common voltage feedback line to be electrically disconnected from a second input end of a common voltage negative-feedback amplification unit and enable a reference common voltage output end to be electrically connected to the second input end of the common voltage negative-feedback amplification unit through the filter unit, and at a non-compensation stage, enable the common voltage feedback line to be electrically connected to the second input end of the common voltage negative-feedback amplification unit and enable the reference common voltage output end to be electrically disconnected from the second input end of the common voltage negative-feedback amplification unit.
    Type: Application
    Filed: August 10, 2017
    Publication date: February 15, 2018
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shuai CHEN, Zhi ZHANG, Lijun XIAO, Yuanbo ZHANG
  • Publication number: 20180047365
    Abstract: The present disclosure provides a circuit for processing a voltage of a pixel electrode and a display apparatus. The circuit for processing a voltage of a pixel electrode comprises: a first input terminal configured to input an original voltage of the pixel electrode; a second input terminal configured to input a voltage of a common electrode; and an output terminal configured to output a processed voltage of the pixel electrode, wherein the circuit for processing a voltage of a pixel electrode is configured to superimpose the voltage of the common electrode on the original voltage of the pixel electrode, to acquire a voltage which is stable with respect to the voltage of the common electrode as the processed voltage of the pixel electrode.
    Type: Application
    Filed: June 1, 2016
    Publication date: February 15, 2018
    Inventors: Siqing Fu, Shuai Chen, Xianyong Gao, Lisheng Liang, Bo Xu, Lijun Xiao, Yin-Hen Hsu, Fei Shang, Shaohong Gao