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:
Jun. 01, 2021
Filed:
May. 16, 2017
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Carl A. Stover, St. Paul, MN (US);
Kristopher J. Derks, Woodbury, MN (US);
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02B 27/28 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02B 5/305 (2013.01); G02B 5/30 (2013.01); G02B 5/3083 (2013.01); G02B 27/28 (2013.01); G02F 1/133536 (2013.01); G02F 2202/022 (2013.01); G02F 2202/28 (2013.01);
Abstract
A polarizer stack including an absorbing polarizer and a multilayer polymeric reflective polarizer bonded together is described. The absorbing polarizer has a first block axis and the reflective polarizer has a second block axis substantially parallel to the first block axis. The reflective polarizer has a shrinkage in a range of 0.4 percent to 3 percent along the second block axis when the reflective polarizer is heated at 95° C. for 40 minutes.