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1. (WO2018040543) PIXEL UNIT, DISPLAY SUBSTRATE, DISPLAY DEVICE, AND METHOD FOR DRIVING PIXEL ELECTRODE

Pub. No.:    WO/2018/040543    International Application No.:    PCT/CN2017/077079
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Sat Mar 18 00:59:59 CET 2017
IPC: G09G 3/36
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
Inventors: TENG, Wanpeng
滕万鹏
Title: PIXEL UNIT, DISPLAY SUBSTRATE, DISPLAY DEVICE, AND METHOD FOR DRIVING PIXEL ELECTRODE
Abstract:
Disclosed is a pixel unit, comprising a pixel electrode (20) and a pixel driving circuit (10). The pixel driving circuit (10) comprises a switch module (102) and a compensation module (101). The compensation module (101) is connected to a first signal line (La), a second signal line (Lb), a data line (data) and the switch module (102). The switch module (102) is connected to the second signal line (Lb), the compensation module (101) and the pixel electrode (20). The compensation module (101) can be used for storing a compensation voltage under the control of the first signal line (La). The compensation module (101) can further be used for supplying the compensation voltage and a data voltage (Vdata) to the switch module (102) under the control of the second signal line (Lb). The switch module (102) can supply the compensation voltage and the data voltage (Vdata) to the pixel electrode (20) under the control of the second signal line (Lb). The pixel unit can reduce the difference between a driving voltage received by a pixel electrode (20) in the pixel unit and an initial data signal output from a data driver, thereby improving the charging rate of the pixel electrode (20) and improving the quality of an image displayed by a display device.