PIXEL DRIVE CIRCUIT AND COMPENSATION METHOD FOR PIXEL DRIVE CIRCUIT - SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD

Title:

PIXEL DRIVE CIRCUIT AND COMPENSATION METHOD FOR PIXEL DRIVE CIRCUIT

Document Type and Number:

WIPO Patent Application WO/2020/199250

Kind Code:

A1

Abstract:

A pixel drive circuit and a compensation method for a pixel drive circuit; a pixel drive circuit having a 3T1C structure is used, and the actual current (Ir) of a drive transistor in each pixel is detected and a threshold voltage of the drive transistor in each pixel is determined according to the actual current (Ir), thus the drive transistor in each pixel is effectively compensated to improve the uniformity of light emission of a light emitting device (D), thereby improving image quality.

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Inventors:

LI XINJI (CN)

Application Number:

PCT/CN2019/082983

Publication Date:

October 08, 2020

Filing Date:

April 17, 2019

Export Citation:

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Assignee:

SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)

International Classes:

G09G3/3225; G09G3/32

Foreign References:

CN105047137A	2015-11-11
CN104658476A	2015-05-27
CN106328061A	2017-01-11
CN101582237A	2009-11-18
CN103854602A	2014-06-11
CN108877651A	2018-11-23
KR20160094130A	2016-08-09
US20080284679A1	2008-11-20
US6847172B2	2005-01-25

Attorney, Agent or Firm:

ESSEN PATENT & TRADEMARK AGENCY (CN)

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