Patent ID: 7477340

Claim:
A light guide panel using a laser stamper, which is used as a rear surface light source of a liquid crystal display, wherein a substrate for the light guide panel, made of an acryl-based material allowing light to penetrate therethrough, is cut into a plurality of light guide panels, and an uneven pattern on a lateral surface of the light guide panel is formed by transcribing a reverse uneven pattern of the laser stamper onto the lateral surface of the light guide panel through a laser direct recording process, and wherein the substrate for the light guide panel is formed into a shape of a compact disc, used as a photodisc recording medium, having an inner perimeter of 15 mm, an outer perimeter of 120 to 300 mm, and a thickness of 0.4 to 1.5 mm, and a dimensional error of an inner perimeter, an outer perimeter, and a thickness of the substrate and the laser stamper is within a range of ±10%.