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:
Sep. 03, 2002
Filed:
Jun. 07, 2000
Taiji Suga, Tokyo-To, JP;
Fumihiro Arakawa, Tokyo-To, JP;
Abstract
A light diffusing film is provided which can be easily and stably produced and possesses excellent light diffusing properties, and, especially when used in combination with a prism sheet, can improve the luminance of light from a light source. A light diffusing film comprises a transparent substrate and a light diffusing layer provided on at least one side of the transparent substrate The light diffusing layer is substantially free from light diffusing particles and is formed of an ionizing radiation-cured resin having on its surface fine concaves and convexes. The light diffusing layer has a surface roughness of 1 to 10 &mgr;m in terms of ten-point average roughness Rz and an average inclination &thgr;a of 5 to 20 degrees.