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:
Nov. 29, 2011
Filed:
Jun. 18, 2008
John S. Huizinga, White Bear Lake, MN (US);
Rolf W. Biernath, Wyoming, MN (US);
Vincent W. King, Woodbury, MN (US);
John C. Schultz, Afton, MN (US);
Michael J. Sykora, Deer Park, WI (US);
Robert L. Brott, Woodbury, MN (US);
John S. Huizinga, White Bear Lake, MN (US);
Rolf W. Biernath, Wyoming, MN (US);
Vincent W. King, Woodbury, MN (US);
John C. Schultz, Afton, MN (US);
Michael J. Sykora, Deer Park, WI (US);
Robert L. Brott, Woodbury, MN (US);
3M Innovative Properties Company, Saint Paul, MN (US);
Abstract
A stereoscopic 3D liquid crystal display module includes a liquid crystal display panel and a directional backlight positioned to provide light to the liquid crystal display panel. A double sided prism film is disposed between the liquid crystal display panel and the directional backlight. The prism film includes a first surface having a series of cylindrical lenses adjacent the liquid crystal display panel and a second surface, opposite the first surface, having a series of non-contiguous prisms adjacent the directional backlight. Each of the non-contiguous prisms is separated from adjacent prisms by a transmissive flat portion or an opaque portion.