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1. (WO2017031868) CIRCUIT AND METHOD FOR GENERATING LIGHT-EMITTING CONTROL SIGNAL, AND PIXEL CIRCUIT DRIVING METHOD

Pub. No.:    WO/2017/031868    International Application No.:    PCT/CN2015/097113
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Sat Dec 12 00:59:59 CET 2015
IPC: G09G 3/32
H01L 27/32
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
北京京东方光电科技有限公司
Inventors: YANG, Shengji
杨盛际
DONG, Xue
董学
WANG, Panhua
王攀华
XUE, Hailin
薛海林
CHEN, Xiaochuan
陈小川
WANG, Haisheng
王海生
LIU, Hongjuan
刘红娟
ZHAO, Weijie
赵卫杰
WANG, Chunlei
王春雷
LI, Wei
李伟
LIU, Yingming
刘英明
Title: CIRCUIT AND METHOD FOR GENERATING LIGHT-EMITTING CONTROL SIGNAL, AND PIXEL CIRCUIT DRIVING METHOD
Abstract:
A circuit and a method for generating a light-emitting control signal of an AMOLED pixel circuit provided with an in-cell type touch sensor, and a pixel circuit driving method. The circuit comprises a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, and a first capacitor Cg. Controlled by a control signal transmitted by a first control line GO, a first clock signal CK, a second clock signal CB, a first level voltage VGH, a second level voltage VGL and a control signal transmitted by a second control line VGL_1, the circuit outputs an expected light-emitting control signal through a light-emitting control line EM. The light-emitting control signal can shut down the OLED in a pixel circuit during the touch sensing period, thereby reducing the influence of the capacitance between the anode and the cathode of the OLED on the capacitance of ground.