Invention Grant
- Patent Title: Driving method and driving control method for pixel circuit
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Application No.: US17094193Application Date: 2020-11-10
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Publication No.: US11200845B2Publication Date: 2021-12-14
- Inventor: Song Meng , Yongqian Li
- Applicant: Hefei Xinsheng Optoelectronics Technology Co., Ltd. , BOE Technology Group Co., Ltd.
- Applicant Address: CN Anhui; CN Beijing
- Assignee: Hefei Xinsheng Optoelectronics Technology Co., Ltd.,BOE Technology Group Co., Ltd.
- Current Assignee: Hefei Xinsheng Optoelectronics Technology Co., Ltd.,BOE Technology Group Co., Ltd.
- Current Assignee Address: CN Anhui; CN Beijing
- Agency: Nath, Goldberg & Meyer
- Agent Joshua R Goldberg
- Priority: CN201911328016.4 20191220
- Main IPC: G09G3/3258
- IPC: G09G3/3258 ; G09G3/3291 ; G09G3/3266

Abstract:
There is provided a driving method for a pixel circuit including a driving transistor, a data writing circuit, a sensing circuit, and a storage capacitor. The driving method includes: during a sensing write stage, writing a test voltage equal to a sum of a first reference voltage and a threshold voltage of the driving transistor, by the data writing circuit, to the control electrode of the driving transistor, and writing a second reference voltage, by the sensing circuit, to a second electrode of the driving transistor; during a sensing sampling stage, continuing to write the test voltage to the control electrode of the driving transistor by the data writing circuit, and stopping writing a voltage to the second electrode of the driving transistor by the sensing circuit. The driving method further includes a sensing reset stage and a sensing charging stage.
Public/Granted literature
- US20210193044A1 DRIVING METHOD AND DRIVING CONTROL METHOD FOR PIXEL CIRCUIT Public/Granted day:2021-06-24
Information query
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