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. 01, 2008
Filed:
Jun. 28, 2004
Eui Yeol OH, Kyounggi-do, KR;
Tae Ho You, Incheon-shi, KR;
Hee Jeong Park, Kyounggi-do, KR;
Ki Duk Kim, Kyounggi-do, KR;
Eui Yeol Oh, Kyounggi-do, KR;
Tae Ho You, Incheon-shi, KR;
Hee Jeong Park, Kyounggi-do, KR;
Ki Duk Kim, Kyounggi-do, KR;
LG.Philips LCD Co., Ltd., Seoul, KR;
Abstract
The liquid crystal display device includes a histogram analyzer analyzing a histogram of an input image and determining the input image as being in one of a low brightness mode, a normal mode, and a high brightness mode based on the histogram analysis, a back light controller controlling a maximum brightness of a back light unit based on the mode determination, and a data modulator enlarging the histogram of the input image to modulate data of the input image. The histogram analyzer detects a most frequent value of gray scale occurring most frequently in the input image of one frame, compares the most frequent value with a predetermined low reference gray value and a predetermined high reference gray value, and determines the input image as in one of the low brightness mode, the normal mode, and the high brightness mode based on the compared result.