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. 02, 2021
Filed:
Dec. 28, 2017
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
One aspect of the present invention provides a foldable light-transmitting optical filmfor use in an image display device, which includes a resin base material, a hard coat layerprovided on the first surfaceA of the resin base material, and a resin layerhaving a film thickness of 50 μm or more and 300 μm or less and provided on the second surfaceB of the resin base materialthat is opposite to the first surfaceA, wherein the shear storage modulus (G') of the optical filmat 25° C. in the frequency range from 500 Hz to 1000 Hz inclusive is more than 200 MPa and 1200 MPa or less, and the shear loss modulus (G″) of the optical film at 25° C. in the frequency range from 500 Hz to 1000 Hz inclusive is 3 MPa or more and 150 MPa or less.