Patent ID: 7649687
Filing Date: 2010-01-19
Classification: G03B

Abstract:
1. A reflective screen comprising: a light diffusing layer adapted to receive external light; a light reflecting layer provided on the light diffusing layer, wherein the light diffusing layer is composed of a resin having irregularity in a surface thereof, and the irregular surface of the light diffusing layer is directly reflected in the surface of the light reflecting layer; and wherein the light diffusing layer has a diffusion property that in one (A axis) of two perpendicular axial directions on a light diffusion plane, upon the light diffusing layer receiving external light, a luminance distribution curve versus incidence angle is asymmetric with respect to a zero-incidence-angle axis, and when a side with a small incidence angle on the A axis (half-luminance incidence angle) faces in a direction in which external light has a highest strength, luminance of the diffusing layer is half of a peak luminance.