Patents by Inventor Mindong Zheng

Mindong Zheng 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: 20230121015
    Abstract: A gate driving circuit includes: a pull-up signal output end connected to an input end of a charging circuitry in a shift register unit and configured to apply a pull-up signal to the shift register unit; a pull-down signal output end connected to an input end of a resetting circuitry in the shift register unit and configured to apply a pull-down signal to the shift register unit; and a current detection circuitry connected to the pull-up signal output end and configured to detect a current value outputted by the pull-up signal output end, and/or connected to the pull-down signal output end and configured to detect a current value outputted by the pull-down signal output end. The pull-up signal output end is further configured to output the pull-up signal adjusted in accordance with the current value detected by the current detection circuitry.
    Type: Application
    Filed: August 12, 2019
    Publication date: April 20, 2023
    Applicants: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Mindong ZHENG, Yongxian XIE, Qiang LIU, Yifeng ZOU
  • Patent number: 11373614
    Abstract: A shift register unit and a driving method thereof, a gate drive circuit, and a display device are provided. The shift register unit includes: an input circuit configured to control a potential of a first node; a first output circuit configured to output a carry signal to a first output terminal of the shift register unit through an output terminal of the first output circuit, under control of the potential and a clock signal; a second output circuit configured to output a driving signal to a second output terminal of the shift register unit, under control of the potential and the clock signal; a switching circuit configured to control the output terminal to be electrically connected to the first output terminal in response to a control signal; and a potential control circuit configured to control the output terminal to be electrically connected to a first voltage terminal.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: June 28, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Mindong Zheng, Hui Wang, Yifeng Zou, Ruiying Yang
  • Patent number: 11335293
    Abstract: A shift register unit, a method of driving a shift register unit, a gate drive circuit, and a display device are provided. The shift register unit includes an input circuit, an output circuit, a first reset circuit, and a reset control circuit. The input circuit is configured to control a level of a first node; the output circuit is configured to output a clock signal to an output terminal; the first reset circuit is configured to reset the first node; and the reset control circuit is configured to input the first reset signal to the first reset circuit in response to a reset control signal and a reference signal, to turn on the first reset circuit and the reset control circuit is further configured to enable an amplitude of a level of the first reset signal to be larger than an amplitude of a level of the reference signal.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: May 17, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongxian Xie, Yifeng Zou, Hui Wang, Mindong Zheng
  • Patent number: 11328641
    Abstract: A shift register unit, a driving method thereof, a gate driving circuit, and a display device are provided. The shift register unit includes an input branch and a reset branch; the input branch is configured to form or disconnect a first path between a first scan voltage terminal and a pull-up node under control of a potential of a first control terminal. The reset branch is configured to form or disconnect a second path between a second scan voltage terminal and the pull-up node under control of a potential of a second control terminal.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: May 10, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., Boe Technology Group Co., Ltd.
    Inventors: Zhiyang He, Mindong Zheng, Youlu Li, Yongxian Xie, Qiang Liu, Hui Wang
  • Patent number: 11176863
    Abstract: A shift register unit, a gate driving circuit and a display device are provided. The shift register unit includes a bias control circuit. The bias control circuit is electrically connected to a pull-down node, a control clock signal terminal, and a bias voltage terminal, respectively, and is configured to control connection between the pull-down node and the bias voltage terminal under the control of a control clock signal provided by the control clock signal terminal; and the bias voltage terminal is configured to input a bias voltage signal.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: November 16, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Mindong Zheng, Hui Wang, Yifeng Zou, Ruiying Yang
  • Publication number: 20210327384
    Abstract: A shift register unit, a method of driving a shift register unit, a gate drive circuit, and a display device are provided. The shift register unit includes an input circuit, an output circuit, a first reset circuit, and a reset control circuit. The input circuit is configured to control a level of a first node; the output circuit is configured to output a clock signal to an output terminal; the first reset circuit is configured to reset the first node; and the reset control circuit is configured to input the first reset signal to the first reset circuit in response to a reset control signal and a reference signal, to turn on the first reset circuit and the reset control circuit is further configured to enable an amplitude of a level of the first reset signal to be larger than an amplitude of a level of the reference signal.
    Type: Application
    Filed: February 18, 2019
    Publication date: October 21, 2021
    Inventors: Yongxian XIE, Yifeng ZOU, Hui WANG, Mindong ZHENG
  • Patent number: 11081035
    Abstract: The present disclosure provides to a shift register unit, a driving method, a gate driving circuit, and a display panel. The shift register unit includes: first and second signal terminals respectively outputting high and low levels alternately, a level logic of a signal output from the second signal terminal being opposite to that from the first signal terminal; first and second pull-down control circuits; a first pull-down circuit coupled to the first pull-down node, the first signal terminal, and a pull-down target node, and transmitting, in response to a signal of the first pull-down node, the signal of the first signal terminal to the pull-down target node; a second pull-down circuit coupled to the second pull-down node, the second signal terminal, and the pull-down target node, and transmitting, in response to a signal of the second pull-down node, the signal of the second signal terminal to the pull-down target node.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: August 3, 2021
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Mindong Zheng, Hui Wang, Yifeng Zou, Qiang Liu, Ruiying Yang
  • Patent number: 11074844
    Abstract: The present disclosure provides a shift register and a method for driving the same, a gate driving circuit, and a display apparatus. The shift register includes: a node control sub-circuit configured to control a potential at a pull-up node under control of a signal input terminal and a reset terminal; an output sub-circuit configured to provide an output signal to a signal output terminal based on a signal at a clock signal terminal under control of the pull-up node; and at least one gating sub-circuit connected to at least one de-noising node respectively, and each configured to de-noise a respective de-noising node connected thereto independently of the potential at the pull-up node under control of a trigger signal terminal, wherein the at least one de-noising node includes at least one of the pull-up node and the signal output terminal.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: July 27, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yifeng Zou, Mindong Zheng, Chuanfeng Deng
  • Publication number: 20210158737
    Abstract: A shift register unit, a driving method thereof, a gate driving circuit, and a display device are provided. The shift register unit includes an input branch and a reset branch; the input branch is configured to form or disconnect a first path between a first scan voltage terminal and a pull-up node under control of a potential of a first control terminal. The reset branch is configured to form or disconnect a second path between a second scan voltage terminal and the pull-up node under control of a potential of a second control terminal.
    Type: Application
    Filed: April 3, 2020
    Publication date: May 27, 2021
    Inventors: Zhiyang HE, Mindong ZHENG, Youlu LI, Yongxian XIE, Qiang LIU, Hui WANG
  • Publication number: 20210134204
    Abstract: The present disclosure provides to a shift register unit, a driving method, a gate driving circuit, and a display panel. The shift register unit includes: first and second signal terminals respectively outputting high and low levels alternately, a level logic of a signal output from the second signal terminal being opposite to that from the first signal terminal; first and second pull-down control circuits; a first pull-down circuit coupled to the first pull-down node, the first signal terminal, and a pull-down target node, and transmitting, in response to a signal of the first pull-down node, the signal of the first signal terminal to the pull-down target node; a second pull-down circuit coupled to the second pull-down node, the second signal terminal, and the pull-down target node, and transmitting, in response to a signal of the second pull-down node, the signal of the second signal terminal to the pull-down target node.
    Type: Application
    Filed: April 27, 2020
    Publication date: May 6, 2021
    Inventors: Mindong ZHENG, Hui WANG, Yifeng ZOU, Qiang LIU, Ruiying YANG
  • Publication number: 20210065643
    Abstract: A shift register unit and a driving method thereof, a gate drive circuit, and a display device are provided. The shift register unit includes: an input circuit configured to control a potential of a first node; a first output circuit configured to output a carry signal to a first output terminal of the shift register unit through an output terminal of the first output circuit, under control of the potential and a clock signal; a second output circuit configured to output a driving signal to a second output terminal of the shift register unit, under control of the potential and the clock signal; a switching circuit configured to control the output terminal to be electrically connected to the first output terminal in response to a control signal; and a potential control circuit configured to control the output terminal to be electrically connected to a first voltage terminal.
    Type: Application
    Filed: July 17, 2020
    Publication date: March 4, 2021
    Applicants: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Mindong ZHENG, Hui WANG, Yifeng ZOU, Ruiying YANG
  • Publication number: 20210065601
    Abstract: A shift register unit, a gate driving circuit and a display device are provided. The shift register unit includes a bias control circuit. The bias control circuit is electrically connected to a pull-down node, a control clock signal terminal, and a bias voltage terminal, respectively, and is configured to control connection between the pull-down node and the bias voltage terminal under the control of a control clock signal provided by the control clock signal terminal; and the bias voltage terminal is configured to input a bias voltage signal.
    Type: Application
    Filed: July 29, 2020
    Publication date: March 4, 2021
    Inventors: Mindong ZHENG, Hui WANG, Yifeng ZOU, Ruiying YANG
  • Publication number: 20210035480
    Abstract: The present disclosure provides a shift register and a method for driving the same, a gate driving circuit, and a display apparatus. The shift register includes: a node control sub-circuit configured to control a potential at a pull-up node under control of a signal input terminal and a reset terminal; an output sub-circuit configured to provide an output signal to a signal output terminal based on a signal at a clock signal terminal under control of the pull-up node; and at least one gating sub-circuit connected to at least one de-noising node respectively, and each configured to de-noise a respective de-noising node connected thereto independently of the potential at the pull-up node under control of a trigger signal terminal, wherein the at least one de-noising node includes at least one of the pull-up node and the signal output terminal.
    Type: Application
    Filed: March 31, 2020
    Publication date: February 4, 2021
    Inventors: Yifeng Zou, Mindong Zheng, Chuanfeng Deng
  • Patent number: 10885863
    Abstract: The present disclosure provides a shifting register and a driving method thereof, a driving circuit, and a driving method of a panel. The shifting register includes: a shifting register unit circuit configured to transmit a signal of a first voltage terminal to an output terminal and an output control terminal according to a level of a pull-down node, and transmit a signal of a clock terminal to the output terminal and the output control terminal according to a level of a pull-up node; and a control unit circuit configured to transmit the signal of the first voltage terminal to the output terminal according to signals of a first control terminal and a second control terminal.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 5, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY TECHNOLOGY GROUP CO., LTD.
    Inventors: Mindong Zheng, Hui Wang, Yifeng Zou, Qiang Liu
  • Publication number: 20200168171
    Abstract: The present disclosure provides a shifting register and a driving method thereof, a driving circuit, and a driving method of a panel. The shifting register includes: a shifting register unit circuit configured to transmit a signal of a first voltage terminal to an output terminal and an output control terminal according to a level of a pull-down node, and transmit a signal of a clock terminal to the output terminal and the output control terminal according to a level of a pull-up node; and a control unit circuit configured to transmit the signal of the first voltage terminal to the output terminal according to signals of a first control terminal and a second control terminal.
    Type: Application
    Filed: July 26, 2019
    Publication date: May 28, 2020
    Inventors: Mindong ZHENG, Hui WANG, Yifeng ZOU, Qiang LIU
  • Patent number: 10565949
    Abstract: The present disclosure provides a liquid crystal display, a turnoff discharge circuit of a liquid crystal display and a driving method thereof. The liquid crystal display includes a plurality of pixel units distributed in an array, each column of pixel units being connected to a data line.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: February 18, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yifeng Zou, Qiang Liu, Mindong Zheng
  • Publication number: 20190304391
    Abstract: The present disclosure provides a liquid crystal display, a turnoff discharge circuit of a liquid crystal display and a driving method thereof. The liquid crystal display includes a plurality of pixel units distributed in an array, each column of pixel units being connected to a data line.
    Type: Application
    Filed: October 25, 2018
    Publication date: October 3, 2019
    Inventors: Yifeng Zou, Qiang Liu, Mindong Zheng