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:
Mar. 17, 2015
Filed:
May. 26, 2010
Dongwoo Kim, Seoul, KR;
Heewon Ahn, Gyeonggi-do, KR;
Daeho Cho, Seoul, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A liquid crystal display includes a liquid crystal display panel, a backlight unit including a plurality of light sources, a backlight driving circuit that individually drives a plurality of previously determined blocks each including the light sources based on a dimming value of each of the blocks, and a local dimming control circuit. The local dimming control circuit adjusts the dimming value of each block based on the result of an analysis of input data, calculates and interpolates sampling gain values of predetermined sampling positions positioned inside each block so as to compensate for a change amount of a luminance resulting from the dimming value of each block, obtains a gain value of each pixel, and modulate the input data to be applied to a corresponding pixel based on the gain value of each pixel.