The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 05, 2019

Filed:

Dec. 13, 2017
Applicant:

Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen, Guangdong, CN;

Inventors:

Bobiao Chang, Guangdong, CN;

Xiaolong Chen, Guangdong, CN;

Yi-chien Wen, Guangdong, CN;

Ming-jong Jou, Guangdong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/30 (2006.01); G09G 3/3225 (2016.01); G09G 3/3233 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3225 (2013.01); G09G 3/3233 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0852 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/0262 (2013.01); G09G 2320/043 (2013.01); G09G 2320/045 (2013.01);
Abstract

The present disclosure relates to a pixel driving circuit and an organic light-emitting diode (OLED) display having the pixel driving circuit. The pixel driving circuit adopts a 6T2C (six transistors and two capacitors) structure to compensate a threshold voltage of the driving thin film transistor (TFT) in the pixel. As such, a current passing through the OLED may not be related to the threshold voltage of the driving TFT. So as to eliminate the improper image-displaying of the OLED display resulting from the drifting of the threshold voltage of the driving TFT.


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