Patent ID: 7656580
Filing Date: 2010-02-02
Classification: G02B

Abstract:
1. A light diffusing sheet comprising a main body made of a transparent resin matrix material, a plurality of first light diffusion particles, a plurality of second light diffusion particles, and a plurality of fluorescent particles dispersed in the transparent resin matrix material uniformly, wherein a refractive index of the second light diffusion particles is greater than that of the first light diffusion particles; the main body comprises the transparent resin matrix material in an amount by weight in the range from 5% to 90%, and the first and second light diffusion particles in a combined amount by weight in the range from 10% to 95%; a ratio by weight of the first light diffusion particles to the second light diffusion particles is in the range from 5 to 100; and a ratio by weight of the first light diffusion particles to the fluorescent particles is greater than 100.