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:
Apr. 23, 2013
Filed:
Aug. 10, 2010
Hee-won Ahn, Gyeonggi-do, KR;
Hee-jung Hong, Seoul, KR;
Kyung-joon Kwon, Seoul, KR;
Dong-woo Kim, Seoul, KR;
Hee-Won Ahn, Gyeonggi-do, KR;
Hee-Jung Hong, Seoul, KR;
Kyung-Joon Kwon, Seoul, KR;
Dong-Woo Kim, Seoul, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
Disclosed herein is a local dimming driving method and device of an LCD device, which is capable of minimizing luminance deviation at the same gray scale due to a dimming difference between blocks. The local dimming driving method of the LCD device includes analyzing input image data in units of blocks and determining a local dimming value per block, performing spatial filtering with respect to the local dimming value per block, repeating spatial filtering by a predetermined repeat count, and controlling luminance of a backlight unit on a block-by-block basis using the local dimming value per block controlled by spatial filtering.