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:
Mar. 21, 2023

Filed:

Sep. 08, 2021
Applicant:

AU Optronics Corporation, Hsin-Chu, TW;

Inventors:

Che-Chia Chang, Hsin-Chu, TW;

Yi-Jung Chen, Hsin-Chu, TW;

Shang-Jie Wu, Hsin-Chu, TW;

Yu-Chieh Kuo, Hsin-Chu, TW;

Hsien-Chun Wang, Hsin-Chu, TW;

Ming-Hung Chuang, Hsin-Chu, TW;

Mei-Yi Li, Hsin-Chu, TW;

He-Yi Cheng, Hsin-Chu, TW;

Yi-Fan Chen, Hsin-Chu, TW;

Assignee:

AU OPTRONICS CORPORATION, Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/30 (2006.01);
U.S. Cl.
CPC ...
G09G 3/30 (2013.01); G09G 2310/061 (2013.01);
Abstract

A driving circuit includes a light-emitting element, a first transistor, a second transistor, a third transistor, a fourth transistor, a first capacitor and a regulator circuit. The first transistor, the second transistor and the light-emitting element are coupled in series between a first system voltage terminal and a second system voltage terminal. A first terminal of the first transistor is coupled to the first system voltage terminal. The third transistor is electrically coupled between a gate terminal and a second terminal of the first transistor. The fourth transistor is electrically coupled between the gate terminal of the first transistor and the second system voltage terminal. A first terminal of the first capacitor is electrically coupled to the gate terminal of the first transistor. A regulator circuit is electrically coupled to a second terminal of the first capacitor.


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