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:
Aug. 27, 2019

Filed:

Dec. 20, 2017
Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventors:

SuHyuk Jang, Paju-si, KR;

Hyojin Kim, Paju-si, KR;

JaeWoo Lee, Paju-si, KR;

HyeJin Kim, Goyang-si, KR;

Jinwon Lee, Paju-si, KR;

DaSol Jun, Incheon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3258 (2016.01); G09G 3/3266 (2016.01); G09G 3/20 (2006.01); G09G 3/3291 (2016.01); G09G 3/3233 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3258 (2013.01); G09G 3/2014 (2013.01); G09G 3/2077 (2013.01); G09G 3/3233 (2013.01); G09G 3/3266 (2013.01); G09G 3/3291 (2013.01); G09G 2320/0238 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/0271 (2013.01); G09G 2320/0276 (2013.01); G09G 2320/064 (2013.01); G09G 2320/0673 (2013.01);
Abstract

An organic light emitting display device which improves expression capability in a low luminance level region, wherein, when receiving a pulse width modulation value indicating a low luminance level region, the device changes the received pulse width modulation value into a pulse width modulation dimming value indicating a high luminance level region, and expresses a low luminance level region through a luminance level indicated by the pulse width modulation dimming value and a pulse width modulation dimming operation. Luminance in a low luminance level region is controlled through a pulse width modulation dimming value indicating a high luminance level region and a pulse width modulation dimming operation, so that it is possible to minutely control luminance in a low luminance level region and improve expression capability in a low luminance level region.


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