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Patent Searching and Data


Title:
COMPENSATION CIRCUIT AND MANUFACTURING METHOD THEREFOR, PIXEL CIRCUIT, COMPENSATION DEVICE, AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/000914
Kind Code:
A1
Abstract:
A compensation circuit and a manufacturing method therefor, a pixel circuit, a compensation device, and a display apparatus. The OLED compensation circuit comprises at least two sensing transistors (T0), the at least two sensing transistors (T0) having one-to-one correspondence to at least two sub-pixels in a pixel. A first electrode of each sensing transistor (T0) is electrically connected to a driving transistor (T1) of the corresponding sub-pixel; the relationship between the width-to-length ratios of the channels of the driving transistors (T1) of any two sub-pixels in the at least two sub-pixels is the same as the relationship between the width-to-length ratios of the channels of the two sensing transistors (T0) corresponding to the two sub-pixels. The compensation circuit can resolve the problem of a large difference in gate-source voltages of different driving transistors caused by each sub-pixel being driven by the same data voltage.

Inventors:
LI QUANHU (CN)
MENG SONG (CN)
Application Number:
CN2018/072753
Publication Date:
January 03, 2019
Filing Date:
January 16, 2018
Export Citation:
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Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
G09G3/3225
Foreign References:
CN107134258A2017-09-05
US20080048947A12008-02-28
CN1705001A2005-12-07
CN103208253A2013-07-17
CN1741117A2006-03-01
US20030197666A12003-10-23
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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