Invention Grant
- Patent Title: Gate driving circuit and display panel
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Application No.: US17617608Application Date: 2021-10-29
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Publication No.: US12154470B2Publication Date: 2024-11-26
- Inventor: Haiming Cao , Yanqing Guan , Chao Tian , Fei Ai , Guanghui Liu , Zhifu Li
- Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Applicant Address: CN Wuhan
- Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Current Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Current Assignee Address: CN Wuhan
- Priority: CN202111213295.7 20211019
- International Application: PCT/CN2021/127378 WO 20211029
- International Announcement: WO2023/065388 WO 20230427
- Main IPC: G09G3/20
- IPC: G09G3/20 ; G09G3/3266 ; G09G3/36 ; H01L29/786

Abstract:
A gate driving circuit and a display panel are disclosed. A pull-up control module and a pull-down module of each stage gate driving unit are connected to a first node. A thin film transistor in the pull-up control module and/or pull-down module that is connected to the first node is an oxide thin film transistor, such that a leakage current of the first node is reduced due to the advantage of the small off-state leakage current of the oxide thin film transistor. Therefore, the voltage level of the first node can remain stable during a pull-up stage and a touch suspension stage.
Public/Granted literature
- US20240005829A1 GATE DRIVING CIRCUIT AND DISPLAY PANEL Public/Granted day:2024-01-04
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