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. 30, 2013
Filed:
Aug. 25, 2008
Masashi Miyamoto, Kitaadachi-gun, JP;
Masanao Takashima, Kitaadachi-gun, JP;
Ryuichi Saga, Kitaadachi-gun, JP;
Masashi Miyamoto, Kitaadachi-gun, JP;
Masanao Takashima, Kitaadachi-gun, JP;
Ryuichi Saga, Kitaadachi-gun, JP;
DIC Corporation, Tokyo, JP;
Abstract
Provided is a prism sheet which has high effects of suppressing Moiré fringes, high front luminance and reduced number of components when it is used as a prism sheet for a backlight unit for a liquid crystal display device. The prism sheet has a prism row having ridges formed in parallel to each other at equivalent intervals on one surface and a light diffusion layer containing porous particles on the other surface. The prism sheet preferably has the prism row on one surface and the light diffusion layer on the other surface by having a light-transmissive substrate in between.