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:
Jun. 28, 2011
Filed:
Sep. 22, 2009
Kentaro Okuyama, Miyagi, JP;
Hitoshi Katakura, Miyagi, JP;
Kei Obata, Miyagi, JP;
Jun Shimizu, Miyagi, JP;
Shinya Suzuki, Miyagi, JP;
Mitsunari Hoshi, Miyagi, JP;
Junichi Inoue, Miyagi, JP;
Akito Kuriyama, Miyagi, JP;
Kentaro Okuyama, Miyagi, JP;
Hitoshi Katakura, Miyagi, JP;
Kei Obata, Miyagi, JP;
Jun Shimizu, Miyagi, JP;
Shinya Suzuki, Miyagi, JP;
Mitsunari Hoshi, Miyagi, JP;
Junichi Inoue, Miyagi, JP;
Akito Kuriyama, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
A retardation film which is manufacturable by a simple process, and being capable of preventing a decline in light use efficiency is provided. A retardation film includes: a substrate having a plurality of grooves extending in a specific direction on a surface thereof; and a retardation layer arranged in contact with the surface of the substrate, and including a liquid crystal material, the liquid crystal material being aligned along the extending direction of the plurality of grooves and being polymerized.