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:
May. 27, 2025
Filed:
Dec. 18, 2020
3m Innovative Properties Company, St. Paul, MN (US);
Tao Liu, Woodbury, MN (US);
Nicholas A. Johnson, Woodbury, MN (US);
Raymond J. Kenney, Woodbury, MN (US);
Caleb T. Nelson, McKinney, TX (US);
Daniel J. Schmidt, Woodbury, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
A light control film comprises a light input surface and a light output surface; alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface; and TIR cladding layers. The TIR cladding layer having a refractive index, n. The transmissive regions alternate between high refractive index transmissive regions having a refractive index, n, and low refractive index transmissive regions having a refractive index, n. The absorptive regions comprise a core having a refractive index, n, adjacent an AR cladding layer; wherein n<nand n<n. The TIR cladding layers are adjacent the high refractive index transmissive regions. The cores have an aspect ratio of at least 20. The high refractive index transmissive regions have a wall angle of 6 degrees or less.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile