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, 2016

Filed:

Dec. 05, 2012
Applicant:

Samsung Display Co., Ltd., Yongin, Gyeonggi-do, KR;

Inventors:

Jin-Wook Yang, Yongin, KR;

Bon-Seog Gu, Yongin, KR;

Woo-Seok Han, Yongin, KR;

Assignee:

Samsung Display Co., Ltd., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/30 (2006.01); G09G 3/32 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3233 (2013.01); G09G 2300/0809 (2013.01); G09G 2300/0861 (2013.01); G09G 2320/0295 (2013.01); G09G 2320/045 (2013.01);
Abstract

A pixel capable of displaying an image with uniform brightness is disclosed. In one aspect, the pixel includes an organic light emitting diode (OLED), a first transistor for controlling an amount of current that flows from a first power supply to a second power supply via the OLED in response to a voltage applied to a first node. The pixel also includes a second transistor that is coupled between a bias power supply and the first node and whose gate electrode is coupled to an emission control line. The pixel further includes a third transistor that is coupled between an anode electrode of the OLED and a feedback line and whose gate electrode is coupled to a control line.


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