OPTICAL SHEET HAVING MULTIPLE CURVATURE

摘要

PURPOSE: An optical sheet having multiple curvatures is provided to improve the scratch resistance and minimize the decrease of brightness. CONSTITUTION: A base layer(100) is made of light transmitting material. A light concentration layer(200) aligns a plurality of prism patterns in one direction on the top of the base layer. A prism pattern(210) of the light concentration layer comprises a corner part(212), a first slope(214), and a second slope(216).