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:
Apr. 19, 2022
Filed:
Jan. 07, 2020
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong, CN;
Qikun Liu, Guangdong, CN;
Jiexin Zheng, Guangdong, CN;
Abstract
A pixel driving circuit and a driving method thereof, and a display panel are provided. The pixel driving circuit includes a first transistor (T), a second transistor (T), a third transistor (T), a first storage capacitor (Cst), a second storage capacitor (Cst) and an organic light emitting element (OLED). By appropriately designing capacitance of the two capacitors and dividing a gate voltage of the first transistor (T), it can be ensured that a black screen is achieved and contrast of a display panel is improved even though a negative drift is seriously caused on a threshold voltage of T
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile