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:
Apr. 08, 2014
Filed:
Nov. 14, 2007
Kenneth A. Epstein, St. Paul, MN (US);
Kenneth J. Hanley, Inver Grove Heights, MN (US);
Gary T. Boyd, Woodbury, MN (US);
Kenneth A. Epstein, St. Paul, MN (US);
Kenneth J. Hanley, Inver Grove Heights, MN (US);
Gary T. Boyd, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A directly illuminated display unit includes a display panel and one or more light sources disposed behind the display panel. The light sources are capable of producing illumination light. A diffusive light diverting layer is disposed between the one or more light sources and the display panel. The light diverting layer comprises first light diverting elements disposed on one of a first side of the light diverting layer facing display panel and second light diverting elements disposed on a second side of the light diverting layer facing away from the display panel. The diffusive light diverting layer further comprises diffusing particles disposed within a polymeric matrix.