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1. (WO2018219209) PIXEL COMPENSATION CIRCUIT, COMPENSATION METHOD, AND DISPLAY DEVICE

Pub. No.:    WO/2018/219209    International Application No.:    PCT/CN2018/088213
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Fri May 25 01:59:59 CEST 2018
IPC: G09G 3/32
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
鄂尔多斯市源盛光电有限责任公司
Inventors: HAN, Long
韩龙
Title: PIXEL COMPENSATION CIRCUIT, COMPENSATION METHOD, AND DISPLAY DEVICE
Abstract:
A pixel compensation circuit and method, and a display device. The pixel compensation circuit comprises: a drive transistor (DT) and an OLED light-emitting element. A first switch element (T1) responds to a reset signal (RESET) and transmits an initialization signal (Vinit) to a control end of the drive transistor (DT); a second switch element (T2) responds to a scanning signal (Gate) and transmits a data signal (Vdata) to a first end of the drive transistor (DT); a third switch element (T3) responds to the scanning signal (Gate) and transmits the data signal (Vdata) to a first end of a coupling capacitor (Cc); a second end of the coupling capacitor (Cc) is connected to a first power supply signal end; a fourth switch element (T4) responds to the scanning signal (Gate) and is connected to the control end and a second end of the drive transistor (DT); a fifth switch element (T5) responds to a control signal (EM) and transmits a first power supply signal (VDD) to the first end of the drive transistor (DT); a sixth switch element (T6) responds to the control signal (EM) and transmits an output current from the drive transistor (DT) to the OLED light-emitting element. A storage capacitor (Cs) is connected between the first power supply signal end and the control end of the drive transistor (DT).