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:
Jul. 29, 2008
Filed:
Sep. 02, 2005
Jiaying MA, Maplewood, MN (US);
Robert S. Moshrefzadeh, Oakdale, MN (US);
Zhiming Zhou, Woodbury, MN (US);
Albert I. Everaerts, Oakdale, MN (US);
Jiaying Ma, Maplewood, MN (US);
Robert S. Moshrefzadeh, Oakdale, MN (US);
Zhiming Zhou, Woodbury, MN (US);
Albert I. Everaerts, Oakdale, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A light managing screen may provide a rear projection screen, front projection screen or component thereof. The screen may comprise a polymeric composition including a first polymeric material, and a second polymeric material disposed as a plurality of elongated structures within the first polymeric material. Each elongated structure has a major axis and the major axes are substantially aligned. The first polymeric material has an index of refraction that differs by at least 0.01 from an index of refraction of the second polymeric material. In some instances, a pressure sensitive adhesive material is selected as the first polymeric material. The orientation of the elongated structures and the difference in indices of refraction results in the polymeric composition scattering light asymmetrically.