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. 03, 2007
Filed:
May. 29, 2003
Jun Ikeda, Fukuoka, JP;
Shuichi Ojima, Fukuoka, JP;
Tsuyoshi Hirashima, Kasuya-gun, JP;
Ryouta Hata, Iizuka, JP;
Shinya Kiuchi, Iizuka, JP;
Jun Ikeda, Fukuoka, JP;
Shuichi Ojima, Fukuoka, JP;
Tsuyoshi Hirashima, Kasuya-gun, JP;
Ryouta Hata, Iizuka, JP;
Shinya Kiuchi, Iizuka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
There is provided a correlation between adjustment of luminance of a LCD and adjustment of luminance of a backlight. Luminance average value 'Iave' is determined from display data. Luminance maximum value 'I1max' in a macro area is determined from the display data. Luminance is adjusted with reference to luminance-transformed luminance. In luminance transformation, slope average “r1” in a range of 0≦I<Iave, slope average “r2” in a range of Iave≦I<Imax, and slope average “r3” in a range of I≧Imax establish a relationship of r≧r>rin an area defined by a horizontal axis showing luminance “I” and a vertical axis showing luminance-transformed luminance “I#”.