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:
Feb. 19, 2019

Filed:

Nov. 30, 2017
Applicant:

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

Inventors:

Shan Wang, Guangdong, CN;

Xiaolong Chen, Guangdong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3258 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3258 (2013.01); G09G 2300/0819 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/045 (2013.01);
Abstract

An OLED pixel driving circuit includes a first TFT having gate connected to a third node, and having a source and a drain connected to a second node and a first node respectively; a second TFT, having gate receiving a scan signal, and having a source and a drain connected to the first node and the third node respectively; a third TFT, having gate receiving the scan signal, and having a source and a drain connected to the second node and utilized for inputting a data voltage respectively; a fourth TFT, having gate receiving an illumination signal, and having a source and a drain connected to the second node and a DC high voltage power source respectively; a fifth TFT, having gate receiving the illumination signal, and having a source and a drain connected to the first node and an anode of an OLED, and two capacitors.


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