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:
Aug. 30, 2016
Filed:
Jul. 19, 2012
Applicants:
Jun Sasaki, Miyagi, JP;
Akihiro Horii, Miyagi, JP;
Inventors:
Jun Sasaki, Miyagi, JP;
Akihiro Horii, Miyagi, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01); G02B 5/02 (2006.01);
U.S. Cl.
CPC ...
G02B 5/0221 (2013.01); G02B 5/02 (2013.01); G02B 5/0231 (2013.01); G02B 5/0268 (2013.01);
Abstract
A diffusion sheet includes a light-transmissive substrate, a plurality of structures, and a flat portion. The light-transmissive substrate includes a first main surface, and a second main surface. The plurality of structures have convex shapes and are randomly formed on the first main surface. The flat portion is formed among the plurality of structures on the first main surface and has a surface roughness (Ra) of no less than 0.9 μm.
Sasaki, Jun. (2016). Diffusion sheet, backlight, liquid crystal display apparatus, and method of producing a diffusion sheet (U.S. Patent No. 9429690). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9429690
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