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:
Mar. 08, 2022
Filed:
Dec. 17, 2019
Applicant:
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong, CN;
Inventor:
Longqiang Shi, Shenzhen, CN;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/3225 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3225 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2320/045 (2013.01);
Abstract
A pixel circuit and a driving method are provided. The pixel circuit includes a switching transistor, a driving transistor, a storage capacitor, a light emitting device, and a reset module. The reset module is configured to output a reset signal to a gate of the driving transistor according to a reset control signal in a reset signal writing and reset stage, to neutralize bias stress on the driving transistor in a data signal writing and light emitting stage. This suppresses further drift of a threshold voltage and ensures stability of light emitting brightness of a light emitting device.