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. 03, 2012
Filed:
Dec. 08, 2008
Rolf W. Biernath, Wyoming, MN (US);
Jennifer R. Yi, Woodbury, MN (US);
Keith M. Kotchick, Saint Paul, MN (US);
John S. Huizinga, White Bear Lake, MN (US);
Rolf W. Biernath, Wyoming, MN (US);
Jennifer R. Yi, Woodbury, MN (US);
Keith M. Kotchick, Saint Paul, MN (US);
John S. Huizinga, White Bear Lake, MN (US);
3M Innovative Properties Company, Saint Paul, MN (US);
Abstract
A passive daylight-coupled display having an LCD panel, a diffuser, and a curved reflector behind the LCD panel. For passive backlighting, the diffuser transmits daylight to the reflector, which reflects the daylight to the LCD panel and provides for substantially uniform distribution of the daylight on the LCD panel for backlighting it. A hybrid display includes both a passive backlight and an active backlight for providing backlighting from an active light source.