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:
Nov. 25, 2014
Filed:
Dec. 07, 2012
Fujifilm Corporation, Tokyo, JP;
Yuta Takahashi, Kanagawa, JP;
Hisato Nagase, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
To provide an optical film which may be used as a λ/4 plate and may provide a display device which has specific optical characteristics, may be manufactured with high productivity and has an excellent 3D-display performance. To provide a 3D-display device having a physical properties having excellent antireflective property and light fastness with high productivity. An optical film having at least one optically anisotropic layer, wherein an in-plane retardation. Re at an arbitrary wavelength in a visible light region is 80 nm to 201 nm, an Nz value represented by the following equation is 0.1 to 0.9, and when the in-plane retardations at wavelengths of 450 nm, 550 nm and 650 nm are referred to as Re450, Re550 and Re650, respectively, Re450/Re550 is 1.18 or less and Re650/Re550 is 0.93 or more.0.5+(Rth: a retardation in a thickness direction)