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:
May. 28, 2013
Filed:
Apr. 19, 2007
Shin Kawana, Yokohama, JP;
Hideaki Kaneda, Ushiku, JP;
Naoto Kijima, Yokohama, JP;
Naoki Sako, Yokohama, JP;
Noriko Endou, Yokohama, JP;
Shin Kawana, Yokohama, JP;
Hideaki Kaneda, Ushiku, JP;
Naoto Kijima, Yokohama, JP;
Naoki Sako, Yokohama, JP;
Noriko Endou, Yokohama, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
To attain a high color reproducibility as a whole image without impairing the brightness of the entire image. A color image display device comprising a combination of light shutters, a color filter having color elements of at least three colors of red, green and blue corresponding to the light shutters, and a backlight for transmission illumination, wherein a light source to be used for the backlight comprises a combination of a blue or deep blue LED and a phosphor, and the relationship between the NTSC ratio W as a color reproduction range of the color image display element and the light use efficiency Y is represented Y≧−0.38 W+51 (wherein W≧87).