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. 03, 2010
Filed:
Nov. 15, 2006
Kenneth A. Epstein, St. Paul, MN (US);
Kenneth J. Hanley, Eagan, MN (US);
Robert M. Emmons, St. Paul, MN (US);
Kenneth A. Epstein, St. Paul, MN (US);
Kenneth J. Hanley, Eagan, MN (US);
Robert M. Emmons, St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A directly illuminated display unit has a display panel and one or more light sources disposed behind the display panel. A diffuser is disposed between the one or more light sources and the display panel, and a light diverting layer is disposed between the one or more light sources and the diffuser. The light diverting layer has a first light-diverting surface facing the one or more light sources and a second light diverting surface facing the display panel. The light diverting layer diverts light passing from the one or more light sources to the diffuser, thus improving the uniformity of the light in the display unit.