Patent ID: 8926777
Filing Date: 2015-01-06
Classification: B32B,G02B,Y10T

Abstract:
1. A method for preparing an optical sheet comprising the steps of: (a) coating one side of a first substrate with a resin composition comprising 100 parts by weight of a binder resin and 70 to 130 parts by weight of spherical organic polymer beads, followed by drying, to prepare a transfer film having an embossed surface; (b) coating one side of a second substrate with an ultraviolet-curable (UV-curable) resin and laminating the transfer film with the second substrate to provide a laminate wherein the embossed surface of the transfer film is in contact with the UV-curable resin coating of the second substrate; and (c) curing the laminate obtained in step (b) and removing the transfer film from the laminate such that the second substrate has an embossed diffusive layer having a refractive index of 1.41 to 1.59, wherein the embossed surface of the transfer film has a segment angle of 130 to 150 .degree.