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. 04, 2017

Filed:

Dec. 23, 2008
Applicants:

Jin Cheol Hong, Gumsi-si, KR;

Hyun Taek Nam, Daegu, KR;

Jong Woo Kim, Gumi-si, KR;

Inventors:

Jin Cheol Hong, Gumsi-si, KR;

Hyun Taek Nam, Daegu, KR;

Jong Woo Kim, Gumi-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/10 (2006.01); G09G 3/36 (2006.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3648 (2013.01); G09G 3/3688 (2013.01); G09G 3/2092 (2013.01); G09G 2320/0238 (2013.01); G09G 2320/0261 (2013.01); G09G 2320/0276 (2013.01); G09G 2370/047 (2013.01);
Abstract

Provided is a display device capable of improving image quality. The display device includes a display panel, a gate driver, a data driver and a gamma reference voltage generator. In the display panel, gate lines and data lines cross each other to define a plurality of liquid crystal cells. The gate driver supplies a scan signal to the gate lines sequentially. The data diver supplies a data voltage to the data lines. The gamma reference voltage generator selectively supplies a gamma reference voltage or a reference voltage of black gradation to the data driver in each horizontal period, according to a selection control signal input from the timing controller.


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