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. 12, 2011
Filed:
Nov. 12, 2007
Ching-fu Hsu, Taichung County, TW;
Ruey-shing Weng, Kaohsiung, TW;
Jyun-sian LI, Tainan, TW;
Shin-tai Lo, Miaoli County, TW;
Ching-Fu Hsu, Taichung County, TW;
Ruey-Shing Weng, Kaohsiung, TW;
Jyun-Sian Li, Tainan, TW;
Shin-Tai Lo, Miaoli County, TW;
Wintek Corporation, Taichung, TW;
Abstract
A backlight processing system and a method thereof are provided. The gray level values of pixels in an input frame signal are adjusted and the brightness thereof is decreased correspondingly. During gray level value adjustment, the gray level values of the pixels in dark regions are reduced, and the gray level values of the pixels in bright regions are increased. During backlight adjustment, first, statistics information on distribution of the gray level value versus the number of pixels is obtained according to the gray level distribution of the original frame. The number of pixels at each gray level is accumulated. When the accumulation value reaches a certain value, a reference signal is obtained. The brightness of the backlight is then adjusted according to the reference signal.