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:
Dec. 20, 2016

Filed:

Sep. 26, 2013
Applicant:

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

Inventors:

Hai-Jung In, Yongin, KR;

Jung-Bae Kim, Yongin, KR;

Bo-Yong Chung, 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 3/3208 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2300/0852 (2013.01); G09G 2300/0861 (2013.01); G09G 2300/0876 (2013.01); G09G 2310/0251 (2013.01); G09G 2310/0262 (2013.01); G09G 2310/061 (2013.01); G09G 2320/043 (2013.01); G09G 2320/045 (2013.01);
Abstract

A pixel circuit for an organic light emitting diode (OLED) display is disclosed. One inventive aspect includes an organic light emitting diode, a first transistor, a storage unit, a second transistor and a third transistor. The first transistor controls the amount of current flowing from a first power source coupled to a second power source via a second node and the organic light emitting diode in response to a voltage at a first node. The storage unit is connected to a data line, and stores a data signal from the data line. The second transistor is connected to a fourth node and the first node and is turned on when a second control signal is supplied. The third transistor is connected to the first node and a third node and is turned on when a third control signal is supplied.


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