Patent ID: 8110278
Filing Date: 2012-02-07
Classification: B29D,G02B,Y10T

Abstract:
1. A scratch-resistant optical film, comprising: (a) a transparent substrate having a first surface and a second surface; (b) a diffusion layer on the first surface of the substrate, which has a convex-concave structure and is comprised of a first hard coat layer containing organic particles; and (c) a scratch-resistant layer on the second surface of the substrate that has a smooth surface and is comprised of a second hard coat layer, wherein the organic particles in the first hard coat layer are formed from a polyacrylate resin which comprises at least one mono-functional acrylate monomer and at least one multi-functional acrylate monomer as polymerization units, said multi-functional acrylate monomer(s) being in an amount from 30 to 70 wt % based on the total weight of the monomers used, and wherein the organic particles have a single mean particle size and have a particle size distribution in the range within about ±5% of the mean particle size.