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. 28, 2015
Filed:
Jun. 25, 2012
Byungsam Min, Yangju-si, KR;
Bogun Seo, Paju-si, KR;
Yongwon JO, Bucheon-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A backlight driving apparatus and method, and an LCD device using the same and a driving method thereof are discussed. The backlight driving apparatus includes a backlight unit, a backlight driver, and a backlight controller. The backlight unit includes a plurality of light sources irradiating light on a liquid crystal display panel which displays an image according to a response of liquid crystal. The backlight driver sequentially turns on the light sources in units of a frame, according to a backlight dimming signal having a duty-on period and a duty-off period. The backlight controller generates the backlight dimming signal having a frequency equal to or higher than a frequency of a frame sync signal for the liquid crystal display panel by analyzing the image, according to external duty-on information.