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, 2021
Filed:
Jun. 24, 2019
Fujifilm Corporation, Tokyo, JP;
Yuki Saiki, Minamiashigara, JP;
Takao Taguchi, Minamiashigara, JP;
Katsuyuki Takada, Minamiashigara, JP;
Mikio Tomaru, Minamiashigara, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
A laminated body sequentially includes a substrate, an adhesive layer, and a multilayer film. The laminated body has characteristics of transmitting first polarized light and reflecting second polarized light having a polarization axis x that intersects a polarization axis y of the first polarized light. The multilayer film includes a plurality of first layers formed of a crystalline naphthalenedicarboxylic acid polyester and a plurality of second layers formed of a polymer other than the crystalline naphthalenedicarboxylic acid polyester, the first layers and the second layers being alternately stacked on top of each other. The first layers have a higher refractive index than the second layers on the polarization axis of the second polarized light, and the multilayer film has a thermal expansion coefficient of −80 [10/K] or more at a temperature 3° C. higher than a glass transition point of the multilayer film in the polarization axis direction of the first polarized light.