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:
Apr. 08, 2025
Filed:
Dec. 02, 2022
3m Innovative Properties Company, St. Paul, MN (US);
Gilles J. Benoit, Minneapolis, MN (US);
Lin Zhao, Woodbury, MN (US);
Matthew B. Johnson, Woodbury, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
An optical film includes a plurality of first layers disposed on a plurality of polymeric second layers. Each of at least 30% of the first layers includes at least 30% by weight of an inorganic material. For a substantially normally incident light, a blue wavelength range extending from about 420 mn to about 480 m, a green wavelength range extending from about 490 nm to about 560 in, and a red wavelength range extending from about 590 nm to about 670 nm, the optical film and the plurality of second layers have respective average optical reflectances Rof(b) and R2() in the blue wavelength range, Rof(g) and R2() in the green wavelength range, and Rof(r) and R2() in the red wavelength range, where 0≤Rof(b)−R2()≤25%; Rof(g)−R2()>30%; and each of Rof(r) and R2() is greater than about 60% and |Rof(r)−R2()| is less than about 20%.