Patent ID: 7678447

Claim:
A protective cover for a liquid crystal module, said protective cover comprising: a transparent substrate having a front surface exposed to air; an anti-reflection transparent medium layer comprising fine particles, which are both hollow and transparent, being dispersed within a transparent resin matrix, said anti-reflection transparent medium layer positioned behind said transparent substrate; wherein said fine particles have a particle size distribution in a range of approximately 0.3-30 μm; wherein a refractive index of the transparent resin constituting said transparent resin matrix is 1.45-1.65; wherein the amount of said fine particles is 0.1-30% by mass based on the total amount (100% by mass) of said transparent resin matrix and said fine particles; wherein said anti-reflection transparent medium layer is positioned in front of an image-displaying area of said liquid crystal module; wherein said anti-reflection transparent medium layer is sealed without a gap between said transparent substrate and said image-displaying area of said liquid crystal module such that a first surface of said anti-reflection transparent medium layer contacts said transparent substrate and a second surface of said anti-reflection transparent medium layer contacts said liquid crystal module, and a refractive index N 1 of said anti-reflection transparent medium layer and a refractive index Ns of said transparent substrate satisfying the relation: No<N 1 <Ns 2 ; and wherein No is a refractive index of air.