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:
Aug. 07, 2012
Filed:
Apr. 03, 2009
Kazunori Yamada, Tokyo, JP;
Takashi Kanoh, Tokyo, JP;
Hideyo Tanaka, Tokyo, JP;
Yukino Miyagawa, Tokyo, JP;
Satoshi Ohkuma, Tokyo, JP;
Mie Shimizu, Tokyo, JP;
Takeshi Itoi, Tokyo, JP;
Kazunori Yamada, Tokyo, JP;
Takashi Kanoh, Tokyo, JP;
Hideyo Tanaka, Tokyo, JP;
Yukino Miyagawa, Tokyo, JP;
Satoshi Ohkuma, Tokyo, JP;
Mie Shimizu, Tokyo, JP;
Takeshi Itoi, Tokyo, JP;
Toyo Ink Mfg. Co., Ltd., Tokyo, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Abstract
A color filter includes a red filter segment, a green filter segment and a blue filter segment, on a substrate, wherein when a pseudo-white LED is used, an area of a triangle defined by three chromaticity points of the red, green and blue filter segments expressed as (x, y), (x, y) and (x, y) on the x-y chromaticity diagram occupies 72% or more of an area standard triangle defined by defined by 3 points of red (0.67, 0.33), green (0.21, 0.71) and blue (0.14, 0.08), and the color filter has a color temperature of 6000K or more. Each of the red, green and blue filter segments has a thickness of 3.3 μm or less. A liquid crystal display device includes such color filter and the pseudo-white LED.