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:
Jul. 23, 2013
Filed:
Mar. 30, 2011
Tatsuo Uchida, Miyagi, JP;
Takahiro Ishinabe, Miyagi, JP;
Tohru Kawakami, Miyagi, JP;
Tomoaki Suzuki, Miyagi, JP;
Kentaro Okuyama, Miyagi, JP;
Akira Ebisui, Miyagi, JP;
Harumi Sato, Miyagi, JP;
Mamoru Mizuno, Miyagi, JP;
Masahiro Ikeda, Miyagi, JP;
Shogo Shinkai, Miyagi, JP;
Tatsuo Uchida, Miyagi, JP;
Takahiro Ishinabe, Miyagi, JP;
Tohru Kawakami, Miyagi, JP;
Tomoaki Suzuki, Miyagi, JP;
Kentaro Okuyama, Miyagi, JP;
Akira Ebisui, Miyagi, JP;
Harumi Sato, Miyagi, JP;
Mamoru Mizuno, Miyagi, JP;
Masahiro Ikeda, Miyagi, JP;
Shogo Shinkai, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Tohoku University, Miyagi, JP;
Abstract
A lighting device includes: a light guide plate; a light source disposed on a side face of the light guide plate; and a light modulation element disposed on a surface or in the inside of the light guide plate and adhered to the light guide plate. The light modulation element has a pair of transparent substrates disposed separately and oppositely, a pair of electrodes provided on respective surfaces of the pair of transparent substrates, and a light modulation layer provided in a gap between the pair of transparent substrates. The light modulation layer includes a first region, having optical anisotropy, responsive to an electric field, and a second region, having optical anisotropy, unresponsive to an electric field. The second region has a striped structure with average striped texture size of 0.05 μm to 10 μm both inclusive in a short axis direction.