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:
Jan. 27, 2015
Filed:
Jun. 07, 2012
Takashi Miyazaki, Kanagawa-ken, JP;
Hitoshi Nagato, Tokyo, JP;
Hajime Yamaguchi, Kanagawa-ken, JP;
Rei Hasegawa, Kanagawa-ken, JP;
Yutaka Nakai, Kanagawa-ken, JP;
Takashi Miyazaki, Kanagawa-ken, JP;
Hitoshi Nagato, Tokyo, JP;
Hajime Yamaguchi, Kanagawa-ken, JP;
Rei Hasegawa, Kanagawa-ken, JP;
Yutaka Nakai, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a display device includes a light-guiding body, a light source, a wavelength selection transmission layer, and a light control layer. The light-guiding body has a first major surface, a second major surface opposite to the first major surface, and a side face connecting the first major surface and the second major surface. The wavelength selection transmission layer is provided on the second major surface. The first major surface has a plurality of concave portions having inclined faces inclined relative to the first major surface. A ratio of a total area of the plurality of the concave portions projected on the first major surface, relative to an area of the first major surface is 8% to 25%. The plurality of the concave portions is evenly provided in the first major surface.