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:
Jan. 10, 2017
Filed:
Aug. 29, 2006
Applicant:
Kenichi Harada, Gobo, JP;
Inventor:
Kenichi Harada, Gobo, JP;
Assignee:
KEIWA INC., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/00 (2006.01); G02F 1/13357 (2006.01); F21V 8/00 (2006.01); G02F 1/1335 (2006.01); G02F 1/13363 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0056 (2013.01); G02F 1/13362 (2013.01); G02F 1/133536 (2013.01); G02B 6/0051 (2013.01); G02B 6/0053 (2013.01); G02F 1/13363 (2013.01); G02F 2001/133607 (2013.01); G02F 2202/40 (2013.01);
Abstract
A substrate film for an optical sheet is made of a transparent resin and is formed into a rectangular shape. The substrate film for the optical sheet has an optical anisotropy and has an absolute value of the angle of the crystal orientation with respect to the short side orientation which is π/16 or greater and 3π/16 or less.