Patent ID: 6330107
Filing Date: 2001-12-11
Classification: G02F,G03B

Abstract:
An optical screen system, comprising:a liquid crystal display with a plurality of cells which emit a portion of an image;an optical screen comprising:a transparent sheet including a front face, a rear face, and a periphery formed therebetween with a size and shape similar to that of the liquid crystal display, the front face of the sheet having a matrix of abutting hemi-spherical protrusions each integrally coupled thereto and extending therefrom about an axis normal with respect to the front face, the hemi-spherical protrusions having a predetermined radius of curvature, the rear face of the sheet having a plurality of semi-spherical protrusions each integrally coupled thereto and extending therefrom about the axis of one of the hemi-spherical protrusions, the semi-spherical protrusions having a predetermined radius of curvature greater than that of the hemi-spherical protrusions;wherein the sheet is removably positioned over the liquid crystal display such that each of the axes of the sheet are in substantial alignment with one of the plurality of the cells of the liquid crystal display.