Invention Grant
- Patent Title: Display panel, detection method thereof and display device
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Application No.: US17631472Application Date: 2021-01-18
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Publication No.: US11749179B2Publication Date: 2023-09-05
- Inventor: Zongjun Zou , Ying Sun , Yumin Xu
- Applicant: Xiamen Tianma Micro-Electronics Co., Ltd.
- Applicant Address: CN Xiamen
- Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
- Current Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
- Current Assignee Address: CN Xiamen
- Agency: Kilpatrick Townsend & Stockton, LLP
- Priority: CN 2011409345.4 2020.12.04
- International Application: PCT/CN2021/072426 2021.01.18
- International Announcement: WO2022/116371A 2022.06.09
- Date entered country: 2022-08-05
- Main IPC: G09G3/32
- IPC: G09G3/32 ; G09G3/00

Abstract:
A display panel includes a scan driving circuit, signal pins and a first gating circuit. Signal pins include a detection signal pin and an enable signal pin. The scan driving circuit includes scan drive units disposed in a cascade manner. The first gating circuit includes a first switch unit and a second switch unit. An input terminal of the first switch unit is electrically connected to a scan signal detection terminal of an Nth-stage scan drive unit. An input terminal of the second switch unit is electrically connected to a scan signal detection terminal of a first-stage scan drive unit. An output terminal of the first switch unit and an output terminal of the second switch unit are both electrically connected to the detection signal pin. The first switch unit is configured to turn on in a forward scan detection stage and turn off in a backward scan detection stage. The second switch unit is configured to turn on in the backward scan detection stage and turn off in the backward scan detection stage.
Public/Granted literature
- US20220366837A1 DISPLAY PANEL, DETECTION METHOD THEREOF AND DISPLAY DEVICE Public/Granted day:2022-11-17
Information query
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