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:
Oct. 23, 2012
Filed:
Nov. 16, 2009
Applicant:
Jiyoung Ahn, Anyang-si, KR;
Inventor:
Jiyoung Ahn, Anyang-si, KR;
Assignee:
LG Display Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a liquid crystal display. A liquid crystal display panel displays an image. An external light sensor senses a color temperature of external light around the liquid crystal display panel. The output luminance of a backlight is controlled in response to an adjustment dimming signal which is varied according to an input image. A gamma curve adjustment circuit restores an original color of the display image irrespective of a change in the viewing environments by modulating input digital video data based on the color temperature of the external light or a relative maximum white luminance for the adjustment dimming signal.