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:
May. 17, 2022

Filed:

Mar. 17, 2021
Applicant:

AU Optronics Corporation, Hsin-Chu, TW;

Inventors:

Shu-Hao Huang, Hsin-Chu, TW;

Hsien-Chun Wang, Hsin-Chu, TW;

Sung-Yu Su, Hsin-Chu, TW;

Assignee:

AU OPTRONICS CORPORATION, Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01);
U.S. Cl.
CPC ...
G09G 3/32 (2013.01); G09G 2300/0819 (2013.01);
Abstract

A display device includes a pixel driving circuit including a data writing unit, a light emitting unit and a compensation unit. The data writing unit includes first and second capacitors. A first terminal of the first capacitor is coupled to a first node, and a second terminal of the first capacitor is coupled to a second node. A first terminal of the second capacitor is coupled to the first node. The light emitting unit includes a first switch and a light emitting element. A control terminal of the first switch is coupled to the second node, and a first terminal of the first switch is coupled to a second terminal of the second capacitor. The compensation unit includes a second switch. The second switch is coupled to the second node and a second terminal of the first switch.


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