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.
Patent No.:
Date of Patent:
Jul. 13, 2021
Filed:
Apr. 14, 2020
Applicant:
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong, CN;
Inventors:
Lindiao Zheng, Guangdong, CN;
Zhenling Wang, Guangdong, CN;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01); G09G 3/3266 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3266 (2013.01); G09G 2310/066 (2013.01); G09G 2320/041 (2013.01); G09G 2320/045 (2013.01); G09G 2320/0626 (2013.01);
Abstract
A pixel driving circuit and a display panel are provided. The pixel driving circuit adopts a pixel driving circuit with a 4T1C structure to effectively compensate a threshold voltage of a driving transistor in each pixel. A compensation structure of the pixel driving circuit is simpler and easier to operate. By compensating the threshold voltage of the driving transistor through two compensation phases, it can achieve a wider compensation range of the threshold voltage, thereby improving brightness and a lifespan of the display panel.