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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.:

US 12687663 B1

PDFFull Text
Date of Patent:
Jul. 21, 2026

Filed:

Aug. 08, 2019

Light control film having second louvers inclined with respect to first louvers

Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Mark A. Roehrig, Stillwater, MN (US);

Zhaohui Yang, North Oaks, MN (US);

Tri Dinh Pham, Woodbury, MN (US);

Cynthia Y. Tamaki, Arden Hills, MN (US);

Owen M. Anderson, Minneapolis, MN (US);

Robert Bennett, Berkshire, GB;

Assignee:

3M Innovative Properties Company, St. Paul, MN (US);

Attorney:

Jonathan L. Tolstedt

Primary Examiner:

Ryan S Dunning

Int. Cl.
CPC ...
G02B 5/00 (2006.01); G02B 5/04 (2006.01); G02B 5/20 (2006.01); G02B 5/22 (2006.01); G02B 17/00 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02B 5/003 (2013.01); G02B 5/045 (2013.01); G02B 5/201 (2013.01); G02B 5/22 (2013.01); G02B 17/002 (2013.01); G02B 17/006 (2013.01); G02F 1/133524 (2013.01); G02B 5/223 (2013.01); G02B 2207/123 (2013.01);
Abstract

A light control film includes a first portion and a second portion laminated to the first portion. The first portion includes a first functional substrate and a plurality of first louvers formed on the first functional substrate. The first functional substrate includes at least one of an optically active layer and a barrier layer. The second portion includes a second functional substrate disposed distal to the first functional substrate and a plurality of second louvers formed on the second functional substrate. The second functional substrate includes at least one of an optically active layer and a barrier layer. The plurality of first louvers extend along a first direction and the plurality of second louvers extend along a second direction. The first direction and the second direction are inclined to each other at an angle that lies within a range from about 70 degrees to about 110 degrees.

Find Patent Forward Citations

Roehrig, Mark. (2026). Light control film having second louvers inclined with respect to first louvers (U.S. Patent No. 12687663). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12687663

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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