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. 07, 2020
Filed:
Aug. 05, 2016
3m Innovative Properties Company, St. Paul, MN (US);
Qingbing Wang, Woodbury, MN (US);
Encai Hao, Woodbury, MN (US);
Tri D. Pham, Woodbury, MN (US);
Daniel J. Theis, Mahtomedi, MN (US);
Matthew S. Stay, Minneapolis, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An optical film assembly comprising a first optical film, a coupling member, and a second optical film wherein the first optical film comprises a prismatic film, the second optical film comprises a diffuser, wherein the coupling member is bonded to the first optical film and to the second optical film such that the first optical film and second optical film are physically coupled, and the coupling member is bonded to at least one of the first optical film and the second optical film non-continuously such that an optically effective air gap is provided. Also, a method for making such optical film assemblies.