Invention Grant
- Patent Title: Gate drive circuit, cascade gate drive circuit and method for driving cascade gate drive circuit
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Application No.: US15147867Application Date: 2016-05-05
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Publication No.: US09785271B2Publication Date: 2017-10-10
- Inventor: Lihua Wang , Conghua Ma , Qijun Yao
- Applicant: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD. , TIANMA MICRO-ELECTRONICS CO., LTD.
- Applicant Address: CN Shanghai CN Shenzhen
- Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.,TIANMA MICRO-ELECTRONICS CO., LTD.
- Current Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.,TIANMA MICRO-ELECTRONICS CO., LTD.
- Current Assignee Address: CN Shanghai CN Shenzhen
- Agency: Kilpatrick Townsend & Stockton LLP
- Priority: CN201510718070 20151029
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G09G3/36

Abstract:
A gate drive circuit, includes a driving transistor and a switching transistor. A gate electrode of the switching transistor is configured to receive first switching signal. A first electrode of the switching transistor is configured to receive second switching signal. A second electrode of the switching transistor is connected to gate electrode of the driving transistor. A first electrode of driving transistor is configured to receive first control signal, and a second electrode of driving transistor is connected to output terminal. During display period, the first control signal is display scanning signal, the first switching signal switches the switching transistor off, the driving transistor is switched on and the driving transistor outputs the display scanning signal. During touch-control period, the first control signal is touch scanning signal, the first switching signal switches the switching transistor on, the second switching signal switches the driving transistor on, and the driving transistor outputs the touch scanning signal.
Public/Granted literature
- US20170123539A1 GATE DRIVE CIRCUIT, CASCADE GATE DRIVE CIRCUIT AND METHOD FOR DRIVING CASCADE GATE DRIVE CIRCUIT Public/Granted day:2017-05-04
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