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:
Jan. 10, 2023
Filed:
Jul. 30, 2019
3m Innovative Properties Company, St. Paul, MN (US);
Daniel J. Schmidt, Woodbury, MN (US);
Kevin W. Gotrik, Hudson, WI (US);
Nicholas A. Johnson, Burnsville, MN (US);
Raymond J. Kenney, Woodbury, MN (US);
Caleb T. Nelson, Woodbury, MN (US);
Kenneth A. Epstein, St. Paul, 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 opposite the light input surface; alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface, wherein the absorptive regions comprise a core having a first concentration, C, of a light absorbing material sandwiched between cladding layers having a second concentration, C, of the light absorbing material, wherein C<C, and wherein the cores have an aspect ratio of at least 20.