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:
Feb. 20, 2024
Filed:
May. 20, 2019
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Daniel J. Theis, Mahtomedi, MN (US);
Tri D. Pham, Woodbury, MN (US);
Bradley S. English, St. Paul, MN (US);
Steven J. Botzet, Hudson, WI (US);
Qingbing Wang, Woodbury, MN (US);
Shu-Ching Fan, Woodbury, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/00 (2006.01); G02B 5/04 (2006.01); B29D 11/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/003 (2013.01); B29D 11/00788 (2013.01); B29D 11/00798 (2013.01); G02B 5/04 (2013.01);
Abstract
An optical film having a first surface, an opposing second surface, and a thickness normal to the first and second surfaces is cut. Cutting the film forms a channel at least partially through the thickness of the film. A light control material is printed proximate to a surface of the film. The ink traverses through the channel by capillary motion.