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:
Mar. 26, 2024
Filed:
Dec. 02, 2022
Daicel-evonik Ltd., Tokyo, JP;
Toshihiko Fujinaka, Tokyo, JP;
Hitomi Omae, Tokyo, JP;
DAICEL-EVONIK LTD., Tokyo, JP;
Abstract
Provided is a polarizing sheet that can precisely impart a desired curved shape without causing whitening when bending is carried out. A polarizing sheet of an embodiment of the present invention having a structure in which a polyamide resin film (), a polarizing film, and a polyamide resin film () are laminated in this order, wherein a retardation value of the polyamide resin film () is from 10 to 3000 nm, and the retardation value of the polyamide resin film () and a retardation value of the polyamide resin film () satisfy Formula (r):[Retardation Value of Polyamide Resin Film (1)]−[Retardation Value of Polyamide Resin Film (2)]≥10 nm (r).