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:
Oct. 08, 2013
Filed:
Apr. 14, 2011
Applicants:
Hsuan-ming Tsai, Hsin-Chu, TW;
Chun-yen Liu, Hsin-Chu, TW;
Inventors:
Hsuan-Ming Tsai, Hsin-Chu, TW;
Chun-Yen Liu, Hsin-Chu, TW;
Assignee:
AU Optronics Corp., Science-Based Industrial Park, Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2006.01); G06F 3/038 (2013.01);
U.S. Cl.
CPC ...
Abstract
A pixel driving circuit of an organic light emitting diode includes a first switch, a capacitor, a transistor, a second switch, a third switch and an organic light emitting diode. The operation of the pixel driving circuit includes three stages of resetting, data writing, and emitting. The pixel driving circuit is able to reset the transistor for de-trapping holes at stages of resetting and data writing. The image retention caused by the transistor hysteresis may be improved.