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:
Mar. 21, 2017
Filed:
Apr. 16, 2014
3m Innovative Properties Company, St. Paul, MN (US);
Andrew J. Ouderkirk, St. Paul, MN (US);
Michael F. Weber, Shoreview, MN (US);
Robert R. Kieschke, Woodbury, MN (US);
Timothy J. Nevitt, Red Wing, MN (US);
Charles David Hoyle, Stillwater, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
A laminated display unit having a light guide, an LCD panel laminated to a major surface of the light guide and a high modulus layer laminated to the light guide opposite the LCD panel. A first material having refractive index nis disposed immediately adjacent a first major surface of the light guide and a second material having a refractive index nis disposed immediately adjacent a second major surface of the light guide. The light guide has a refractive index nwhich is greater than about 1.05 times nwhere nis the larger of nand n. At least one of the first major surface and the second major surface includes a plurality of multiplets where each multiplet includes two or more extraction features.