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:
Dec. 03, 2013
Filed:
Jan. 13, 2010
Yang-wan Kim, Yongin, KR;
Woong-sik Choi, Yongin, KR;
Yang-Wan Kim, Yongin, KR;
Woong-Sik Choi, Yongin, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
A display device displays an image having a substantially uniform brightness by compensating for variations of the threshold voltages of driving transistors and compensating for the deterioration of an organic light emitting diode. A pixel includes an organic light emitting diode, two transistors, a storage capacitor, and a compensation unit. A driving transistor supplies a current to an OLED corresponding to the voltage in the storage capacitor. The compensation unit controls a voltage of a gate electrode of the driving transistor corresponding to a deterioration of the organic light emitting diode, and couples one electrode of the driving transistor to the data line during a compensation period, during which a threshold voltage of the driving transistor is compensated.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile