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:
Dec. 30, 2014
Filed:
Dec. 17, 2012
Yuko Kizu, Kanagawa-ken, JP;
Ayako Takagi, Kanagawa-ken, JP;
Shinichi Uehara, Tokyo, JP;
Masako Kashiwagi, Kanagawa-ken, JP;
Yoshiharu Momonoi, Kanagawa-ken, JP;
Masahiro Baba, Kanagawa-ken, JP;
Yuko Kizu, Kanagawa-ken, JP;
Ayako Takagi, Kanagawa-ken, JP;
Shinichi Uehara, Tokyo, JP;
Masako Kashiwagi, Kanagawa-ken, JP;
Yoshiharu Momonoi, Kanagawa-ken, JP;
Masahiro Baba, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, an image display device includes a liquid crystal lens device and an image display unit. The liquid crystal lens device includes a liquid crystal optical element unit. The liquid crystal optical element unit includes a first substrate unit, a second substrate unit and a liquid crystal layer. The liquid crystal layer is provided between the first and second substrate units. The liquid crystal layer has an alignment twisted by an angle not less than 5 degrees and not more than 45 degrees along a normal axis of a major surface of the first substrate unit. The image display unit includes a display unit. The second substrate unit is disposed between the first substrate unit and the display unit.