Invention Grant
- Patent Title: Pixel driving circuit and driving method therefor, display panel and display device
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Application No.: US17603686Application Date: 2020-10-19
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Publication No.: US11610549B2Publication Date: 2023-03-21
- Inventor: Han Yue , Dongni Liu
- Applicant: BOE TECHNOLOGY GROUP CO., LTD.
- Applicant Address: CN Beijing
- Assignee: BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee: BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee Address: CN Beijing
- Agency: IP & T Group LLP
- Priority: CN201911061474.6 20191101
- International Application: PCT/CN2020/121912 WO 20201019
- International Announcement: WO2021/082970 WO 20210506
- Main IPC: G09G3/3258
- IPC: G09G3/3258 ; G09G3/3233

Abstract:
A pixel driving circuit includes a signal control sub-circuit and a time control sub-circuit. The signal control sub-circuit includes a first driving sub-circuit connected to a first node. The signal control sub-circuit is configured to: write at least a first data signal into the first node, and enable the first driving sub-circuit to output a driving signal according to the first data signal and a first power supply voltage signal. The time control sub-circuit includes a second driving sub-circuit including a first transistor connected to a second node and the signal control sub-circuit. The time control sub-circuit is configured to: transmit a second power supply voltage signal and a third power supply voltage signal to the second node in different periods, so as to control a turn-on time of the first transistor and transmit the driving signal to an element to be driven when the first transistor is turned on.
Public/Granted literature
- US20220157247A1 PIXEL DRIVING CIRCUIT AND DRIVING METHOD THEREFOR, DISPLAY PANEL AND DISPLAY DEVICE Public/Granted day:2022-05-19
Information query
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