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:
May. 19, 2015
Filed:
Mar. 25, 2010
Noriyuki Hirai, Miyagi, JP;
Akihiro Horii, Miyagi, JP;
Hiroshi Mizuno, Miyagi, JP;
Akiko Kakibe, Miyagi, JP;
Tokuhiro Morioka, Miyagi, JP;
Shunichi Kajiya, Miyagi, JP;
Noriyuki Hirai, Miyagi, JP;
Akihiro Horii, Miyagi, JP;
Hiroshi Mizuno, Miyagi, JP;
Akiko Kakibe, Miyagi, JP;
Tokuhiro Morioka, Miyagi, JP;
Shunichi Kajiya, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
An optical sheet includes a sheet body including a single translucent resin material layer having a first surface that light enters and a second surface that the light exits. The sheet body is orientationally crystallized in a first in-plane axis direction and a second in-plane axis direction orthogonal to each other and having a linear expansion coefficient of 1.0*10E−5/° C. or less in all in-plane directions. A structure surface portion that has a geometric configuration and is formed on at least one of the first surface and the second surface.