Patent ID: 7776424
Filing Date: 2010-08-17
Classification: B32B,G02B,Y10T

Abstract:
1. An optical sheet, comprising: a plastic substrate; a light diffusion layer formed on said substrate, and comprising a UV curable resin having bubbles mixed therein; and a light gathering layer formed on said light diffusion layer by applying a composition on said light diffusion layer, said light gathering layer having at least one microstructure, that is selected from a group consisting of a regular prismatic pattern, an irregular prismatic pattern, an annular prismatic pattern, and a cube corner pattern, wherein the UV curable resin is an acrylic UV curable resin selected from the group consisting of methacrylate resin, urethane acrylate resin, polyester acrylate resin, and mixtures thereof, and wherein said composition is made from polyacrylate resin, and wherein the bubbles have an irregular distribution of volumes within the light diffusion layer.