Invention Grant
- Patent Title: GOA circuit
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Application No.: US17056032Application Date: 2020-10-27
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Publication No.: US11640778B2Publication Date: 2023-05-02
- Inventor: Xiaobin Hu
- Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Applicant Address: CN Guangdong
- Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Current Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Current Assignee Address: CN Guangdong
- Priority: CN202010920028.2 20200904
- International Application: PCT/CN2020/123901 WO 20201027
- International Announcement: WO2022/047951 WO 20220310
- Main IPC: G09G3/20
- IPC: G09G3/20

Abstract:
A gate driver on array (GOA) circuit includes a plurality of GOA units, wherein the GOA units are cascaded. The cascaded GOA units includes an Nth-stage GOA unit including a pull-up control module, a cascade module, a pull-down holding module, a pull-down control module, and a signal output module. A structure of an inverter module in the pull-down holding module is improved. Advantageous effects are as follows. The inverter module in the pull-down holding module is optimized. Difference in a voltage-ampere characteristic between each of transistors after long-term operation of the inverter module is effectively reduced, thereby increasing operating time of the inverter module.
Public/Granted literature
- US20220309976A1 GOA CIRCUIT Public/Granted day:2022-09-29
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