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.
Patent No.:
Date of Patent:
Dec. 23, 2014
Filed:
Apr. 11, 2012
Applicants:
Kyoung Don Woo, Gyeonggi-do, KR;
Eun Jeong Jin, Gyeonggi-do, KR;
Inventors:
Kyoung Don Woo, Gyeonggi-do, KR;
Eun Jeong Jin, Gyeonggi-do, KR;
Assignee:
LG Display Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/10 (2006.01); G09G 3/32 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3208 (2013.01); G09G 2320/0276 (2013.01); G09G 2330/028 (2013.01);
Abstract
A display device, such as a OLED device, and a method of driving the OLED device. The display device includes a gamma voltage generator that generates sequentially decreasing gamma voltages based on sequentially decreasing reference voltages. A data driver selects a gamma voltage from the gamma voltages for driving a pixel based on digital data indicative of a gray scale level for the pixel. In one embodiment the gamma voltage generator includes a resistor string and an input tab that is electrically isolated from the resistor string.