Patents by Inventor Zelin Yang

Zelin Yang 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).

  • Patent number: 12776244
    Abstract: The application provides a display panel and display device; in the display panel, by having the gate driving circuit comprise a plurality of stages of first gate driving units in a cascaded configuration and at least one stage of second gate driving unit, the first gate driving unit is configured to output a scanning signal, the second gate driving unit is configured to output a stage transmission signal to a corresponding one or more first gate driving units. In a direction perpendicular to the arrangement direction of each of the stages of the first gate driving units, a width of the second gate driving unit is less than a width of the corresponding one or more of first gate driving units.
    Type: Grant
    Filed: April 27, 2025
    Date of Patent: October 27, 2026
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zelin Yang, Liu Yang, Wei Li, Xiaohui Yao
  • Publication number: 20260331072
    Abstract: A display device and a driving method thereof are provided. The display device includes N stages of gate driving units and 2N rows of pixel units, and an i-th stage of gate driving unit is electrically connected to gate lines of a (2i?1)-th row and a 2i-th row of pixel units. The i-th stage of gate driving unit includes a first and a second transistors, gates of the first and second transistor are both electrically connected to the first node, one of a source and a drain of the first transistor is electrically connected to a first clock signal line, and the other is electrically connected to a first gate driving signal output terminal; one of a source and a drain of the second transistor is electrically connected to a second clock signal line, and the other is electrically connected to a second gate driving signal output terminal.
    Type: Application
    Filed: June 11, 2026
    Publication date: October 22, 2026
    Applicant: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventors: Donghun LIM, Zelin YANG, Miao LIN, Chungching HSIEH, He WANG
  • Publication number: 20260237342
    Abstract: The present disclosure provides a gate drive unit and a display device. A pull-up control module of the gate drive circuit of a current stage receives a gate control signal output from the gate drive circuit of a previous stage, so that a cascading module is omitted from the gate drive circuit, cascading control for the gate drive circuit of a plurality of stages may be realized, the number of transistors used in the gate drive circuit is reduced, and the layout space occupied by the gate drive circuit is reduced.
    Type: Application
    Filed: September 25, 2023
    Publication date: August 13, 2026
    Inventors: DONGHUN LIM, Yunpeng LIN, Zelin YANG, Yingchun ZHAO, Qian ZHAO
  • Publication number: 20260212798
    Abstract: A GOA circuit (611) and a display panel (600). The GOA circuit (611) comprises multiple stages of cascaded GOA units, each GOA unit comprising a pull-up control module (301), a pull-down maintaining module (304), a pull-down module (305), a bootstrap capacitor (Cb), a pull-up module (302) and a transfer module (303). The GOA circuit (611) uses, on the pull-up module (302), an alternating-current signal (Vnew) having high and low signals with opposite potentials to drive the circuit, and pulls down the signal in the blanking time of a scanning signal (G(n)) for stress restoration, so as to reduce a threshold voltage shift caused by a stress at high potential during display, and improve the stability and service life of circuits.
    Type: Application
    Filed: April 27, 2025
    Publication date: July 23, 2026
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zelin YANG, Liu YANG, Wei LI, Xiaohui YAO
  • Patent number: 12333990
    Abstract: Gate driving circuits, display panels, and display devices are provided. The gate driving circuit includes cascaded gate driving units, each of which includes an input unit, an output unit, a reset control unit, and a pull-down holding unit. The input unit outputs a driving signal to a first node. The output unit outputs a scanning signal in response to the driving signal. The reset control unit outputs a reset control signal to a second node during a first period. The pull-down holding unit receives the reset control signal. The pull-down holding unit outputs a first voltage signal to the first node in response to the reset control signal to reset a potential of the first node during the first period, and outputs the first voltage signal to the first node to maintain the potential of the first node during a second period.
    Type: Grant
    Filed: November 30, 2023
    Date of Patent: June 17, 2025
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Donghun Lim, Zelin Yang
  • Publication number: 20250124842
    Abstract: Gate driving circuits, display panels, and display devices are provided. The gate driving circuit includes cascaded gate driving units, each of which includes an input unit, an output unit, a reset control unit, and a pull-down holding unit. The input unit outputs a driving signal to a first node. The output unit outputs a scanning signal in response to the driving signal. The reset control unit outputs a reset control signal to a second node during a first period. The pull-down holding unit receives the reset control signal. The pull-down holding unit outputs a first voltage signal to the first node in response to the reset control signal to reset a potential of the first node during the first period, and outputs the first voltage signal to the first node to maintain the potential of the first node during a second period.
    Type: Application
    Filed: November 30, 2023
    Publication date: April 17, 2025
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: DONGHUN LIM, Zelin YANG
  • Patent number: 12175917
    Abstract: A gate drive circuit and a display panel. The gate drive circuit includes multi-stage cascaded gate drive units. The gate drive units each include a pull-up control module, an output module, a pull-down module, a pull-down maintain module, a first reference low-level signal input terminal, a second reference low-level signal input terminal, and a pull-up node located in a line between the pull-up control module and the output module. The pull-up control module includes a pull-up control transistor that is electrically connected to the pull-up node and configured to pull a potential of the pull-up node up. The output module includes a scan signal output transistor that is electrically connected to the pull-up node and configured to output a present-stage scan signal under control of the potential of the pull-up node.
    Type: Grant
    Filed: December 28, 2023
    Date of Patent: December 24, 2024
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventors: Song He, Xiaojin He, Xu Wang, Zelin Yang