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. 03, 2011
Filed:
Oct. 20, 2005
Masami Kogure, Chiba, JP;
Hiroshi Kawato, Chiba, JP;
Masami Kogure, Chiba, JP;
Hiroshi Kawato, Chiba, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
The present invention provides: a polycarbonate light diffusing resin composition in which a first discoloration is a little, and particularly a photo-deterioration caused by a cold-cathode tube as a light source of liquid crystal displays is suppressed; and a light diffuser panel obtained by molding the same. The polycarbonate light diffusing resin composition comprises: (A) 100 parts by mass of an aromatic polycarbonate resin; (B) 0.01 to 10 parts by mass of a light diffusing agent; and (C) 0.05 to 5 parts by mass of a light-resisting agent having a maximum absorption wavelength at 290 to 330 nm in an ultraviolet light absorption spectrum and the light diffuser panel is a light diffuser panel having a thickness of 0.5 to 2 mm and obtained by molding the polycarbonate light diffusing resin composition.