Light-diffusing sheet, and projection-type screen and liquid crystal display unit both provided with said light-diffusing sheet

摘要

A light-diffusing sheet of the type having a clear film (1) and two light diffusing layers (2, 3) formed consecutively thereon, characterized in that the first light-diffusing layer (2) is a film of clear resin incorporated with a light-diffusing material, and the second light-diffusing layer (3) is a film of clear resin having a corrugated surface structure formed thereon. It can be used for the rear-projection screen without the occurrence of moiré pattern. It can also be used for the front-projection screen which permits the viewing angles to be established in the horizontal and vertical directions independently. Furthermore, it can be used for the liquid crystal display unit to increase its viewing angle without decreasing contrast.