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:
Oct. 07, 2008
Filed:
Sep. 18, 2006
Michio Nagai, Minami-ashigara, JP;
Akira Ikeda, Minami-ashigara, JP;
Michio Nagai, Minami-ashigara, JP;
Akira Ikeda, Minami-ashigara, JP;
Fujifilm Corporation, Minato-Ku, Tokyo, JP;
Abstract
An optical film comprising an optically anisotropic layer including a liquid crystalline compound, wherein the optically anisotropic layer satisfies the following formulae:(450)/(650)<1.25:   Formula (1)wherein Re(450) and Re(650) are in-plane retardation values (unit: nm) of the optically anisotropic layer at wavelengths of 450 nm and 650 nm, respectively;0.09<(550)/:   Formula (2)wherein Re_m(550) is an in-plane retardation value (unit: nm) of a uniaxial alignment layer in which the director of the liquid crystalline compound is aligned to be parallel in the plane at a wavelength of 550 nm, and d is the thickness of the uniaxial alignment layer (unit: nm).