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:
May. 20, 2008
Filed:
Jun. 06, 2007
Kenjiro Kuroda, Tokyo, JP;
Mitsuru Endo, Tokyo, JP;
Natsuka Sakai, Tokyo, JP;
Godai Fukunaga, Tokyo, JP;
Tomohiro Nakagome, Tokyo, JP;
Yoshiaki Shiina, Tokyo, JP;
Luis Manuel Murillo-mora, Tokyo, JP;
Kenjiro Kuroda, Tokyo, JP;
Mitsuru Endo, Tokyo, JP;
Natsuka Sakai, Tokyo, JP;
Godai Fukunaga, Tokyo, JP;
Tomohiro Nakagome, Tokyo, JP;
Yoshiaki Shiina, Tokyo, JP;
Luis Manuel Murillo-Mora, Tokyo, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Abstract
In an optical sheet which is used for light control illumination in a backlight unit for a display, in order from an incident side of an illuminating light, there are provided at least a light scattering layer which scatters the illuminating light toward an outgoing surface side, an adhesion layer or an adhesive layer, a light reflection layer which reflects light scattered by the light scattering layer toward the light scattering layer side, and a lens sheet whose flat rear face is fixed to the other side of the light reflection layer, and in which a plurality of unit lenses are disposed on the surface. Opening portions corresponding to the respective unit lenses one-to-one are provided to the light reflection layer, and thickness of the adhesion layer or the adhesive layer is thinner than that of the light reflection layer.