Invention Grant
- Patent Title: Circuit and method for generation of light emission control signal and pixel circuit driving method
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Application No.: US15518448Application Date: 2015-12-11
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Publication No.: US09997111B2Publication Date: 2018-06-12
- Inventor: Shengji Yang , Xue Dong , Panhua Wang , Hailin Xue , Xiaochuan Chen , Haisheng Wang , Hongjuan Liu , Weijie Zhao , Chunlei Wang , Wei Li , Yingming Liu
- Applicant: BOE TECHNOLOGY GROUP CO., LTD. , BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Applicant Address: CN Beijing CN Beijing
- Assignee: BOE TECHNOLOGY GROUP., LTD.,BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Current Assignee: BOE TECHNOLOGY GROUP., LTD.,BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Current Assignee Address: CN Beijing CN Beijing
- Agency: Womble Bond Dickinson (US) LLP
- Priority: CN201510529204 20150826
- International Application: PCT/CN2015/097113 WO 20151211
- International Announcement: WO2017/013868 WO 20170302
- Main IPC: G09G3/3258
- IPC: G09G3/3258 ; H01L27/32 ; G06F3/041

Abstract:
The present disclosure discloses a circuit and method for generating a light emission control signal for an AMOLED pixel circuit having in-cell touch sensors, as well as a pixel circuit driving method. The circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor and a first capacitor. Under control of a control signal transferred by a first control line, a first clock signal, a second clock signal, a voltage of a first level, a voltage of a second level and a control signal transferred by a second control line, the circuit outputs the desired light emission control signal via a light emission control line. The light emission control signal may turn off the OLED in the pixel circuit during a touch sense phase such that an influence of the capacitance between the anode and cathode of the OLED on the touch sensor-to-ground capacitance is reduced.
Public/Granted literature
- US20170316740A1 CIRCUIT AND METHOD FOR GENERATION OF LIGHT EMISSION CONTROL SIGNAL AND PIXEL CIRCUIT DRIVING METHOD Public/Granted day:2017-11-02
Information query
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