Invention Grant
- Patent Title: Pixel driving circuit having two data signals to compensate for threshold voltage and driving method
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Application No.: US17294231Application Date: 2020-09-30
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Publication No.: US11386846B2Publication Date: 2022-07-12
- Inventor: Dongni Liu , Minghua Xuan , Xiaochuan Chen , Xue Dong , Haoliang Zheng , Han Yue , Ning Cong
- 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: CN201911061511.3 20191101
- International Application: PCT/CN2020/119367 WO 20200930
- International Announcement: WO2021/082869 WO 20210506
- Main IPC: G09G3/3258
- IPC: G09G3/3258 ; G09G3/3266 ; G09G3/3291

Abstract:
A pixel driving circuit includes a data writing sub-circuit, a driving sub-circuit, and a control sub-circuit. The data writing sub-circuit is configured to: in response to a first scanning signal and a third scanning signal, write a first data signal into the driving sub-circuit; and in response to a second scanning signal and the third scanning signal, write a second data signal into the driving sub-circuit. The control sub-circuit is configured to, in response to an enable signal, connect a driving transistor to a first power supply voltage signal terminal and an element to be driven. The driving sub-circuit is configured to: according to the first data signal and a first power supply voltage signal, output a driving signal; and according to the second data signal and the first power supply voltage signal, control an operating state of the element to be driven.
Public/Granted literature
- US20220005414A1 PIXEL DRIVING CIRCUIT AND DRIVING METHOD FOR THE SAME, DISPLAY PANEL AND DISPLAY DEVICE Public/Granted day:2022-01-06
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