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1. (WO2018157442) PIXEL COMPENSATION CIRCUIT AND DRIVING METHOD THEREFOR, AND DISPLAY DEVICE

Pub. No.:    WO/2018/157442    International Application No.:    PCT/CN2017/079553
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Fri Apr 07 01:59:59 CEST 2017
IPC: G09G 3/3233
Applicants: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
深圳市华星光电技术有限公司
Inventors: HAN, Baixiang
韩佰祥
SUN, Liang
孙亮
Title: PIXEL COMPENSATION CIRCUIT AND DRIVING METHOD THEREFOR, AND DISPLAY DEVICE
Abstract:
A pixel compensation circuit (10) and a driving method therefor, and a display device (40). The pixel compensation circuit (10) comprises: a light-emitting element (11); a driving switching transistor (T) with a first end connected to a power voltage (VDD); a first switching transistor (T1) with a control end connected to a first scan signal (Scan) and a first end connected to a data signal (Data); a second switching transistor (T2) with a control end connected to a control signal (EM) and a first end connected to a second end of the driving switching transistor (T); a third switching transistor (T3) with a control end connected to a second scan signal (Scan2); and a storage capacitor (Cst) with a first end connected to a control end of the driving switching transistor (T) and a second end connected to a second end of the second switching transistor (T2). According to the pixel compensation circuit, impact of threshold voltage (Vth) of the driving switching transistor (T) on driving current (IOLED) passing through the light-emitting element (11) can be eliminated.