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.:

US 9114557 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 25, 2015

Filed:

Mar. 11, 2011
Applicants:

Jun Sasaki, Miyagi, JP;

Akihiro Horii, Miyagi, JP;

Naoto Sugawara, Miyagi, JP;

Kanako Hashimoto, Miyagi, JP;

Takeshi Kondou, Miyagi, JP;

Makoto Aoki, Miyagi, JP;

Inventors:

Jun Sasaki, Miyagi, JP;

Akihiro Horii, Miyagi, JP;

Naoto Sugawara, Miyagi, JP;

Kanako Hashimoto, Miyagi, JP;

Takeshi Kondou, Miyagi, JP;

Makoto Aoki, Miyagi, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); B29C 33/42 (2006.01); G02B 5/02 (2006.01); B29C 59/04 (2006.01);
U.S. Cl.
CPC ...
B29C 33/42 (2013.01); G02B 5/0221 (2013.01); G02B 5/0268 (2013.01); G02B 5/0278 (2013.01); G02B 5/0284 (2013.01); B29C 59/04 (2013.01); G02F 1/133606 (2013.01); Y10T 428/24355 (2015.01);
Abstract

A diffusion sheet includes a light-transmissive base member, a plurality of structures, and a flattened portion. The light-transmissive base member has a first main surface and a second main surface. The plurality of structures have convex shapes, which are randomly formed on the first main surface. The flattened portion is formed among the plurality of structures on the first main surface and has a surface roughness (Ra) equal to or lower than 0.6 μm.


Find Patent Forward Citations

Sasaki, Jun. (2015). Diffusion sheet, backlight, liquid crystal display apparatus and method of manufacturing the diffusion sheet comprising a plurality of convex shapes that are irregularly spaced and aligned relative to each other (U.S. Patent No. 9114557). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9114557

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…