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:
Aug. 12, 2014
Filed:
Apr. 10, 2013
3m Innovative Properties Company, St. Paul, MN (US);
Mark B. O'Neill, Stillwater, MN (US);
Philip E. Watson, St. Paul, MN (US);
Matthew B. Johnson, Woodbury, MN (US);
Adam D. Haag, Woodbury, MN (US);
Keith M. Kotchick, St. Paul, MN (US);
Sergey Lamansky, Apple Valley, MN (US);
3M Innovative Properties Company, Saint Paul, MN (US);
Abstract
A backlight that includes an illumination device that has at least one light source, a circular-mode reflective polarizer, and a specular partial reflector is disclosed. The specular partial reflector is disposed between the illumination device and the circular-mode reflective polarizer. Furthermore, the specular partial reflector is in substantially direct polarization communication with the circular-mode reflective polarizer.