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. 09, 2002
Filed:
Aug. 23, 2000
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
Provided is a light scattering resin layer providing scattering of a transmitted light by dispersion of an inorganic fine particle in a transparent resin, wherein said fine particle is a polyhedral particle having substantially no fractured surface, L/S ratio is 2.0 or less when the major axis length is represented by L and the minor axis length is represented by S, the number-average particle diameter of said fine particle is 0.1 &mgr;m or more and 20.0 &mgr;m or less, and the particle size distribution in terms of D90/D10 value is 7 or less when particle diameters at 10% cumulation and 90% cumulation from smaller particle side of cumulative particle size distribution are represented by D10 and D90, respectively. The light scattering layer has a good dispersibility of a fine particle in a transparent resin, improved forward scattering property, and excellent light transmittance and used for a color filter, a light scattering plate, a light scattering adhesive layer, and a liquid crystal display.