公开(公告)号：US12175917B1

公开(公告)日：2024-12-24

申请号：US18398476

申请日：2023-12-28

Applicant: TCL China Star Optoelectronics Technology Co., Ltd.

Inventor： Song He ,  Xiaojin He ,  Xu Wang ,  Zelin Yang

IPC: G09G3/3266 ,  G09G3/20

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.