Patent ID: 6744558
Filing Date: 2004-06-01
Classification: G03B

Abstract:
A rear-projection screen comprising:a transparent plate having a rear surface on an image-projecting side, and a front surface on a viewing side, the transparent plate being optically transparent; a front transparent sheet applied to the front surface of the transparent plate; and a wide-angle diffusing sheet applied to the rear surface of the transparent plate; wherein the front transparent sheet is provided in its front surface with a plurality of horizontal, parallel, minute ridges having a triangular cross section, a side surface facing up or down of two side surfaces of each minute ridge having a triangular cross section is coated with a shading film, and the other side surface is transparent, and wherein an entire face of the front transparent sheet is applied to the front surface of the transparent plate, and an entire face of the wide-angle diffusing sheet is applied to the rear surface of the transparent plate.