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:
Feb. 08, 2022

Filed:

Dec. 06, 2019
Applicant:

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

Inventors:

Sunghoon Rha, Paju-si, KR;

Hyungguk Bae, Paju-si, KR;

Minsu Cho, Paju-si, KR;

Minkyu Jang, Paju-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/3275 (2016.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3275 (2013.01); G09G 3/2003 (2013.01); G09G 3/2007 (2013.01); G09G 2310/027 (2013.01); G09G 2310/0297 (2013.01); G09G 2310/08 (2013.01); G09G 2320/064 (2013.01); G09G 2320/0633 (2013.01); G09G 2320/0673 (2013.01); G09G 2330/028 (2013.01);
Abstract

A display device includes a display panel including data lines, gate lines which cross the data lines, and pixels; a gamma voltage generator configured to generate first to nth gamma voltages, n being an integer; and a data driver configured to generate data voltages by selecting the gamma voltages according to input image data, and to supply the data voltages to the data lines, wherein the gamma voltage generator comprises a first voltage dividing unit configured to divide a reference voltage; a first voltage dividing circuit configured to generate the first gamma voltage by selecting voltages output from the first voltage dividing unit according to a highest gamma register value; and a second voltage dividing circuit configured to generate the second to nth gamma voltages using the reference voltage.


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