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:
Nov. 19, 2019

Filed:

Aug. 21, 2017
Applicant:

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

Inventors:

Ki-Ho Kong, Suwon-si, KR;

Dong-Wook Suh, Bucheon-si, KR;

Hee-Jong Kim, Seoul, KR;

Chang-Hee Shin, Gimpo-si, KR;

Hyeok-Chul Kwon, Hwaseong-si, KR;

Hong-Keun Yune, Seoul, KR;

Assignee:

SAMSUNG ELECTRONIC CO., LTD., Suwon-si, Gyeonggi-Do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/02 (2006.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G09G 3/2003 (2013.01); G09G 2300/0452 (2013.01); G09G 2310/027 (2013.01); G09G 2310/0297 (2013.01); G09G 2320/0673 (2013.01); G09G 2330/028 (2013.01);
Abstract

A source driver for a display device includes a gamma voltage generation circuit, first through (2m)-th data driving circuits, and a switch circuit. The gamma voltage generation circuit generates R, G and B gamma voltages. The (2k−1)-th data driving circuits consecutively receive red image data and blue image data, and consecutively generate a R driving voltage and a B driving voltage using the R gamma voltages and B gamma voltages, respectively, during one horizontal period. The (2k)-th data driving circuits consecutively receive first green image data and second green image data, and consecutively generate a G1 driving voltage and a G2 driving voltage, respectively, using the G gamma voltages during the one horizontal period. The switch circuit outputs the R, B, G1, and G2 driving voltages through different data lines from each other based on a first selection signal and a second selection signal.


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