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. 10, 2019

Filed:

Feb. 20, 2018
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Tetsuya Shigeta, Suwon-si, KR;

Sang-young Park, Suwon-si, KR;

Ho-seop Lee, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01); G09G 3/20 (2006.01); G09G 3/3233 (2016.01);
U.S. Cl.
CPC ...
G09G 3/2081 (2013.01); G09G 3/2011 (2013.01); G09G 3/3233 (2013.01); G09G 3/2018 (2013.01); G09G 2310/027 (2013.01); G09G 2310/0243 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0242 (2013.01);
Abstract

A pixel circuit of a display panel is provided, which includes a light emitting element configured to emit light in accordance with a drive current, a current source including a driving transistor connected to the light emitting element, and the current source is configured to provide the drive current having a different amplitude to the light emitting element in accordance with a level of a voltage applied to a gate terminal of the driving transistor, an amplitude setting circuit configured to apply a voltage having a different level to the gate terminal of the driving transistor, and a pulse width control circuit configured to control a duration of the drive current by controlling the voltage applied to the gate terminal of the driving transistor.


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