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:
Jul. 27, 2010
Filed:
Jun. 29, 2006
Masayuki Yamamoto, Tokyo, JP;
Akira Hirano, Tokyo, JP;
Hideyo Tanaka, Tokyo, JP;
Yusuke Iida, Tokyo, JP;
Satoshi Ohkuma, Tokyo, JP;
Koichi Minato, Tokyo, JP;
Takeshi Itoi, Tokyo, JP;
Hidesato Hagiwara, Tokyo, JP;
Masayuki Yamamoto, Tokyo, JP;
Akira Hirano, Tokyo, JP;
Hideyo Tanaka, Tokyo, JP;
Yusuke Iida, Tokyo, JP;
Satoshi Ohkuma, Tokyo, JP;
Koichi Minato, Tokyo, JP;
Takeshi Itoi, Tokyo, JP;
Hidesato Hagiwara, Tokyo, JP;
Toyo Ink Mfg. Co., Ltd., Tokyo, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Abstract
A red-colored film in which when an elliptically polarized light is incident on the film in a direction 45° aslant from a normal line direction with respect to a surface of the film, a light transmitted through the film has an average amplitude transmittance ratio (av. tan Ψ) in a wavelength region of 575 to 635 nm, which satisfies the following equation (1):0.960<av. tan Ψ<1.040  (1).A red-colored composition contains a red pigment A having a BET specific surface area in the range from 90 to 140 m/g, a red pigment B having a BET specific surface area in the range from 70 to 85 m/g, and a pigment carrier formed of a transparent resin, a precursor of the transparent resin or a mixture of the tarns parent resin and precursor thereof. A color filter has the red-colored film as a red color filter segment. The liquid crystal display device includes the color filter.