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:
Sep. 27, 2011
Filed:
Nov. 30, 2006
Ryota Matsubara, Tokyo, JP;
Yuta Takahashi, Kanagawa, JP;
Akira Ikeda, Kanagawa, JP;
Masaru Yoshikawa, Kanagawa, JP;
Takafumi Hosokawa, Kanagawa, JP;
Michio Nagai, Kanagawa, JP;
Makoto Takahashi, Kanagawa, JP;
Ryota Matsubara, Tokyo, JP;
Yuta Takahashi, Kanagawa, JP;
Akira Ikeda, Kanagawa, JP;
Masaru Yoshikawa, Kanagawa, JP;
Takafumi Hosokawa, Kanagawa, JP;
Michio Nagai, Kanagawa, JP;
Makoto Takahashi, Kanagawa, JP;
FUJIFILM Corporation, Minato-Ku, Tokyo, JP;
Abstract
The present invention aims to provide an optical compensation film that allows superior phase difference between a first optically anisotropic layer and a second optically anisotropic layer and excellent wavelength dispersibility in terms of front and inclined retardation of liquid crystal layers in liquid crystal cells, a polarizing plate containing the optical compensation film, and a liquid-crystal display device that can display superior images with less color change due to the polarizing plate. In order to attain the object, an optical compensation film etc. is provided that comprises at least a first optically anisotropic layer and a second optically anisotropic layer, wherein the first optically anisotropic layer satisfies at least one of the following Equations (i) to (iii):1≦Re450)(0°)/Re650)(0°)≦1.25:  Equation (i)1≦Re450)(40°)/Re650)(40°)≦1.25:  Equation (ii)1≦Re450)(−40°)/Re650)(−40°)≦1.25:  Equation (iii).