Patents by Inventor Xiaohai CHEN

Xiaohai CHEN 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: 20260127995
    Abstract: The present disclosure provides a gate driving circuit and a display panel. When a pull-up control module controls an electrical connection between a first voltage terminal and a second node, an inverting module disconnects an electrical connection between a low-frequency clock signal terminal and a third node in response to a potential of the second node, the inverting module controls an electrical connection between the first voltage terminal and the third node in response to a potential of a first node, and a pull-down holding module disconnects an electrical connection between the first voltage terminal and the first node in response to a potential of the third node.
    Type: Application
    Filed: February 18, 2024
    Publication date: May 7, 2026
    Applicant: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTD.
    Inventor: Xiaohai CHEN
  • Publication number: 20260044235
    Abstract: A driving method and a driving device for a touch panel, and a display apparatus are provided, featuring a low power wake-up gesture mode. In this mode, the touch panel includes a first stage for touch scanning and a subsequent second phase for pulling up the signal potential. The method involves responding to confirmation of the touch panel transitioning from the first stage to the second stage by controlling a reset signal and a low voltage signal to switch to first level signals, and controlling the start pulse signal, clock signal, and latch signal to switch to second level signals, where the voltage of the first level signal is higher than that of the second level signal. This configuration can reduce disturbances from high voltage signals to the touch scanning signal, improve issues related to failed wake-ups or accidental wake-ups, and enhance the product usage experience.
    Type: Application
    Filed: September 29, 2024
    Publication date: February 12, 2026
    Applicant: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTd.
    Inventors: Xin HU, Xiaohai CHEN, Sunqi LOU
  • Patent number: 12547278
    Abstract: A driving method and a driving device for a touch panel, and a display apparatus are provided, featuring a low power wake-up gesture mode. In this mode, the touch panel includes a first stage for touch scanning and a subsequent second phase for pulling up the signal potential. The method involves responding to confirmation of the touch panel transitioning from the first stage to the second stage by controlling a reset signal and a low voltage signal to switch to first level signals, and controlling the start pulse signal, clock signal, and latch signal to switch to second level signals, where the voltage of the first level signal is higher than that of the second level signal. This configuration can reduce disturbances from high voltage signals to the touch scanning signal, improve issues related to failed wake-ups or accidental wake-ups, and enhance the product usage experience.
    Type: Grant
    Filed: September 29, 2024
    Date of Patent: February 10, 2026
    Assignee: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Xin Hu, Xiaohai Chen, Sunqi Lou
  • Patent number: 12525204
    Abstract: A gate driving circuit and a display panel are provided by the present application. An Nth stage gate driving circuit unit includes a first pull-up controlling module, a second pull-up controlling module, and a pull-up module. During a forward scanning, the first pull-up controlling module is configured to render the pull-up module to be turned on at the beginning of a scanning, and is further configured to pulled down a potential of the output terminal of the Nth stage gate driving circuit unit to a low potential at the end of the scanning. During a reverse scanning, the second pull-up controlling module is further configured to render the pull-up module to be turned on at the beginning of a scanning, and is configured to pull down a potential of the output terminal of the Nth stage gate driving circuit unit to a low potential at the end of the scanning.
    Type: Grant
    Filed: November 29, 2024
    Date of Patent: January 13, 2026
    Assignee: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Xiaohai Chen
  • Patent number: 12504474
    Abstract: A test button loop device that includes an elastic button and a conductive member forming a test loop. The elastic button includes a contact portion matched with the conductive member, and a button member pressing the contact portion. The conductive member is linked with a handle mechanism or an operating mechanism or a moving contact of a circuit breaker, which drives the conductive member to approach the contact portion when the circuit breaker is closed, and the button member in this state can drive the contact portion to contact the conductive member to switch the test loop on. The handle mechanism or the operating mechanism or the moving contact of the circuit breaker drives the conductive member away from the contact portion when the circuit breaker is opened, and the button member in this state can will not be able to contact the conductive member.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: December 23, 2025
    Assignee: ZHEJIANG CHINT ELECTRICS CO., LTD.
    Inventors: Xiaomin Xia, Xiaohai Chen, Jie Li, Yanqiang Wu
  • Publication number: 20250252935
    Abstract: A gate driving circuit and a display panel are provided by the present application. An Nth stage gate driving circuit unit includes a first pull-up controlling module, a second pull-up controlling module, and a pull-up module. During a forward scanning, the first pull-up controlling module is configured to render the pull-up module to be turned on at the beginning of a scanning, and is further configured to pulled down a potential of the output terminal of the Nth stage gate driving circuit unit to a low potential at the end of the scanning. During a reverse scanning, the second pull-up controlling module is further configured to render the pull-up module to be turned on at the beginning of a scanning, and is configured to pull down a potential of the output terminal of the Nth stage gate driving circuit unit to a low potential at the end of the scanning.
    Type: Application
    Filed: November 29, 2024
    Publication date: August 7, 2025
    Applicant: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTd.
    Inventor: Xiaohai CHEN
  • Publication number: 20240201259
    Abstract: A test button loop device that includes an elastic button and a conductive member forming a test loop. The elastic button includes a contact portion matched with the conductive member, and a button member pressing the contact portion. The conductive member is linked with a handle mechanism or an operating mechanism or a moving contact of a circuit breaker, which drives the conductive member to approach the contact portion when the circuit breaker is closed, and the button member in this state can drive the contact portion to contact the conductive member to switch the test loop on. The handle mechanism or the operating mechanism or the moving contact of the circuit breaker drives the conductive member away from the contact portion when the circuit breaker is opened, and the button member in this state can will not be able to contact the conductive member.
    Type: Application
    Filed: August 16, 2022
    Publication date: June 20, 2024
    Inventors: Xiaomin XIA, Xiaohai CHEN, Jie LI, Yanqiang WU
  • Patent number: 11688351
    Abstract: A shift register unit, a gate driving circuit, and a display device are provided. The shift register unit includes an input terminal, a first shift register sub-unit, and a second shift register sub-unit. The first shift register sub-unit includes a first output terminal, is connected to the input terminal to receive an input signal, and is configured to output a first output signal at the first output terminal according to the input signal; the second shift register sub-unit includes a second output terminal, is connected to the input terminal to receive the input signal, and is configured to output a second output signal at the second output terminal according to the input signal; and a pulse portion of the first output signal at least partially overlaps with a pulse portion of the second output signal in time.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: June 27, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lubin Shi, Xiaohai Chen, Tingting Zhou
  • Patent number: 11380256
    Abstract: A pixel driving circuit may include a first switch circuit, a second switch circuit, a first initialization circuit, a drive circuit, a second initialization circuit, a compensation circuit, an isolation circuit, and an energy storage circuit.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: July 5, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xiaohai Chen
  • Publication number: 20220036788
    Abstract: A shift register includes an output sub-circuit and a coupling sub-circuit. The output sub-circuit is coupled to a second clock signal terminal, a pull-up node and a signal output terminal. The output sub-circuit is configured to output a second clock signal received at the second clock signal terminal to the signal output terminal under a control of a voltage of the pull-up node. The coupling sub-circuit is coupled to the second clock signal terminal and a pull-down node. The coupling sub-circuit is configured to couple a voltage of the pull-down node through the second clock signal received at the second clock signal terminal.
    Type: Application
    Filed: May 9, 2020
    Publication date: February 3, 2022
    Inventors: Lubin SHI, Xiaohai CHEN
  • Publication number: 20220013071
    Abstract: A shift register unit, a gate driving circuit, and a display device are provided. The shift register unit includes an input terminal, a first shift register sub-unit, and a second shift register sub-unit. The first shift register sub-unit includes a first output terminal, is connected to the input terminal to receive an input signal, and is configured to output a first output signal at the first output terminal according to the input signal; the second shift register sub-unit includes a second output terminal, is connected to the input terminal to receive the input signal, and is configured to output a second output signal at the second output terminal according to the input signal; and a pulse portion of the first output signal at least partially overlaps with a pulse portion of the second output signal in time.
    Type: Application
    Filed: September 27, 2021
    Publication date: January 13, 2022
    Inventors: Lubin SHI, Xiaohai CHEN, Tingting ZHOU
  • Publication number: 20210407401
    Abstract: A pixel driving circuit may include a first switch circuit, a second switch circuit, a first initialization circuit, a drive circuit, a second initialization circuit, a compensation circuit, an isolation circuit, and an energy storage circuit.
    Type: Application
    Filed: January 30, 2019
    Publication date: December 30, 2021
    Inventor: Xiaohai CHEN
  • Patent number: 11151946
    Abstract: A shift register unit and a driving method, a gate driving circuit, and a display device are provided. The shift register unit includes an input terminal, a first shift register sub-unit, and a second shift register sub-unit. The first shift register sub-unit includes a first output terminal, is connected to the input terminal to receive an input signal, and is configured to output a first output signal at the first output terminal according to the input signal; the second shift register sub-unit includes a second output terminal, is connected to the input terminal to receive the input signal, and is configured to output a second output signal at the second output terminal according to the input signal; and a pulse portion of the first output signal at least partially overlaps with a pulse portion of the second output signal in time.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: October 19, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lubin Shi, Xiaohai Chen, Tingting Zhou
  • Patent number: 11081033
    Abstract: A shift register unit includes: an input terminal, a first voltage terminal, a second voltage terminal, a first clock terminal, a second clock terminal and an output terminal, as well as an input circuit, a control circuit and an output circuit. In addition, a method for driving the shift register unit, a gate driver composed of the shift register units, a display panel comprising the gate driver and a display device comprising the display panel are also disclosed.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: August 3, 2021
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Xiaohai Chen
  • Publication number: 20210150989
    Abstract: A shift register unit and a driving method, a gate driving circuit, and a display device are provided. The shift register unit includes an input terminal, a first shift register sub-unit, and a second shift register sub-unit. The first shift register sub-unit includes a first output terminal, is connected to the input terminal to receive an input signal, and is configured to output a first output signal at the first output terminal according to the input signal; the second shift register sub-unit includes a second output terminal, is connected to the input terminal to receive the input signal, and is configured to output a second output signal at the second output terminal according to the input signal; and a pulse portion of the first output signal at least partially overlaps with a pulse portion of the second output signal in time.
    Type: Application
    Filed: January 4, 2019
    Publication date: May 20, 2021
    Inventors: Lubin SHI, Xiaohai CHEN, Tingting ZHOU
  • Publication number: 20210082329
    Abstract: A shift register unit includes: an input terminal, a first voltage terminal, a second voltage terminal, a first clock terminal, a second clock terminal and an output terminal, as well as an input circuit, a control circuit and an output circuit. In addition, a method for driving the shift register unit, a gate driver composed of the shift register units, a display panel comprising the gate driver and a display device comprising the display panel are also disclosed.
    Type: Application
    Filed: May 21, 2019
    Publication date: March 18, 2021
    Inventor: Xiaohai CHEN
  • Patent number: D1037579
    Type: Grant
    Filed: March 7, 2024
    Date of Patent: July 30, 2024
    Inventor: Xiaohai Chen
  • Patent number: D1048598
    Type: Grant
    Filed: May 14, 2024
    Date of Patent: October 22, 2024
    Inventor: Xiaohai Chen
  • Patent number: D1048599
    Type: Grant
    Filed: July 8, 2024
    Date of Patent: October 22, 2024
    Inventor: Xiaohai Chen
  • Patent number: D1097379
    Type: Grant
    Filed: January 13, 2025
    Date of Patent: October 7, 2025
    Inventor: Xiaohai Chen