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. 27, 2016

Filed:

Aug. 25, 2015
Applicant:

Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;

Inventors:

In-Suk Kim, Suwon-Si, KR;

Byung-Hun Han, Eunpyeong-Gu, KR;

Jae-Hyuck Woo, Osan-Si, KR;

Assignee:

SAMSUNG ELECTRONICS CO., LTD., Suwon-Si, Gyeonggi-Do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 1/00 (2006.01); G09G 3/32 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3291 (2013.01); G09G 3/3208 (2013.01); G09G 3/3225 (2013.01); G09G 2310/027 (2013.01); G09G 2320/043 (2013.01); G09G 2320/0673 (2013.01); G09G 2330/028 (2013.01);
Abstract

A gradation voltage generator for applying a gradation voltage according to gamma characteristics of a display panel includes a reference gamma selector that receives a maximum reference voltage, a minimum reference voltage, and a first reference voltage, and selects and outputs a maximum gamma voltage and a minimum gamma voltage from among voltages between the maximum reference voltage and the minimum reference voltage, wherein when the maximum reference voltage changes, the minimum gamma voltage is compensated by a difference the changed maximum reference voltage and the first reference voltage and a gamma curve controller that receives the maximum gamma voltage and the minimum gamma voltage, and generates and outputs a plurality of gradation voltages.


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