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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 8692962 B1

PDFFull Text
Date of Patent:
Apr. 08, 2014

Filed:

May. 24, 2010

Diffusion sheet and method of manufacturing the same, backlight, and liquid crystal display device

Applicants:

Akihiro Shibata, Miyagi, JP;

Jun Sasaki, Miyagi, JP;

Hirofumi Tsuiki, Miyagi, JP;

Akihiro Horii, Miyagi, JP;

Noriyuki Hirai, Miyagi, JP;

Hiroshi Mizuno, Miyagi, JP;

Satoko Asaoka, Miyagi, JP;

Kanako Hashimoto, Miyagi, JP;

Yasuyuki Kudo, Miyagi, JP;

Saori Hayashi, Kanagawa, JP;

Teiichi Miyauchi, Kanagawa, JP;

Satoshi Sekino, Miyagi, JP;

Makoto Aoki, Miyagi, JP;

Inventors:

Akihiro Shibata, Miyagi, JP;

Jun Sasaki, Miyagi, JP;

Hirofumi Tsuiki, Miyagi, JP;

Akihiro Horii, Miyagi, JP;

Noriyuki Hirai, Miyagi, JP;

Hiroshi Mizuno, Miyagi, JP;

Satoko Asaoka, Miyagi, JP;

Kanako Hashimoto, Miyagi, JP;

Yasuyuki Kudo, Miyagi, JP;

Saori Hayashi, Kanagawa, JP;

Teiichi Miyauchi, Kanagawa, JP;

Satoshi Sekino, Miyagi, JP;

Makoto Aoki, Miyagi, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:

K&L Gates LLP

Primary Examiner:

Lucy Chien

Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02B 5/04 (2006.01);
U.S. Cl.
CPC ...
G02B 5/045 (2013.01); H01L 2224/45144 (2013.01);
Abstract

A diffusion sheet includes: a substrate having a first principal surface and a second principal surface; and structures each in a convex shape formed randomly on the first principal surface or the second principal surface of the substrate. The structures have an identical or almost identical height. The structures have an aspect ratio h/r, where r denotes an average radius of the structures and h denotes an average height of the structures, of more than 0.85 and not more than 1.50. The structures have a filling factor of not less than 60% and not more than 80%.

Find Patent Forward Citations

Shibata, Akihiro. (2014). Diffusion sheet and method of manufacturing the same, backlight, and liquid crystal display device (U.S. Patent No. 8692962). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8692962

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

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