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:
Jul. 12, 2022

Filed:

Jun. 25, 2019
Applicant:

Samsung Display Co., Ltd., Yongin-si, KR;

Inventors:

Gun-Hee Kim, Seoul, KR;

Sang-Ho Park, Hwaseong-si, KR;

Ju-Won Yoon, Suwon-si, KR;

Seung-Chan Lee, Hwaseong-si, KR;

Joo-Hee Jeon, Hwaseong-si, KR;

Assignee:

Samsung Display Co., Ltd., Yongin-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3291 (2016.01); H01L 27/32 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3291 (2013.01); H01L 27/3244 (2013.01); G09G 2320/0673 (2013.01); G09G 2330/021 (2013.01);
Abstract

A pixel circuit includes: a driving switching element; a data initializer to initialize a voltage of a control electrode of the driving switching element; a data writer to write a data voltage to the driving switching element; an organic light emitting element; an organic light emitting element initializer to initialize an anode electrode of the organic light emitting element to a second initialization voltage based on an organic light emitting element initialization gate signal; and a light emitting controller to control an emission of the organic light emitting element. The organic light emitting element initializer includes: a control electrode to receive the organic light emitting element initialization gate signal; an input electrode to receive the second initialization voltage; an output electrode connected to the anode electrode; and a conductive layer to receive a compensation control signal that is different from the organic light emitting element initialization gate signal.


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