Patent ID: 6603604
Filing Date: 2003-08-05
Classification: G03B

Abstract:
A screen of a projection television comprising:a Fresnel lens for converting an incident light beam emitted from an image source into a parallel beam; a lenticular lens including a plurality of sequentially arranged lens elements having a column shape parallel to one another for forming an image from the parallel beam output from the Fresnel lens and spreading the formed image; and a protective panel installed on the front surface of the lenticular lens for protecting the lenticular lens, wherein the Fresnel lens comprises a base substrate and a lens unit contacting one side of the base substrate, patterns having a saw-toothed shape are formed on a surface of the lens unit facing a lenticular lens, and a portion of each pattern corresponding to a sharp portion of a sawtooth is a processed curved surface having a predetermined curvature.