Invention Grant
- Patent Title: AMOLED pixel driving circuit and pixel driving method
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Application No.: US14758245Application Date: 2015-04-01
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Publication No.: US10339859B2Publication Date: 2019-07-02
- Inventor: Chenglei Nie
- Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
- Applicant Address: CN Shenzhen, Guangdong
- Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Current Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Current Assignee Address: CN Shenzhen, Guangdong
- Agent Leong C. Lei
- Priority: CN201510057134 20150203
- International Application: PCT/CN2015/075693 WO 20150401
- International Announcement: WO2016/123856 WO 20160811
- Main IPC: G09G3/3225
- IPC: G09G3/3225 ; G09G3/3233

Abstract:
The present invention provides an AMOLED pixel driving circuit and a pixel driving method. The AMOLED pixel driving circuit comprises: a first, a second, a third, a fourth, a fifth, a sixth thin film transistors (M1, M2, M3, M4, M5, M6), a first, a second capacitors (C1, C2) and an organic light emitting diode (D1); wherein the third thin film transistor (M3) is a mirror thin film transistor, and the fourth thin film transistor (M4) is a drive thin film transistor, and the second thin film transistor (M2) is located between the third and the fourth thin film transistors (M3, M4). By controlling activation and deactivation of the second thin film transistor (M2) according to time sequence with the restore signal (Restore), the source voltage of the third thin film transistor (M3) is controlled to be pulled down to the earth voltage level (GND) in the restore stage to ensure that ensure that the gate-source voltages of the third, the fourth thin film transistors (M3, M4) are equal. Meanwhile, the data signal can be efficiently simplified to increase the charge time of the data signal.
Public/Granted literature
- US20160307497A1 AMOLED PIXEL DRIVING CIRCUIT AND PIXEL DRIVING METHOD Public/Granted day:2016-10-20
Information query
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