OPTICAL SHEET AND OPTICAL SHEET MANUFACTURING METHOD

摘要

PURPOSE: An optical sheet and a manufacturing method thereof are provided to prevent absorption of dust or foreign material on a top surface of an optical sheet by forming a protective film to a top part of the optical sheet. CONSTITUTION: A release film(220) is provided. A hardener is provided to a top part of the release film. A protective film(240b) is formed by hardening the hardener. The hardener is formed by using UV-hardening material or U-acryl hardening material. An adhesive layer is formed to a top surface of the protective film. A light transmitting resin of liquid state is formed to a top surface of the protective film. An optical film(280) is formed by applying heat and pressure to the light transmitting resin, and includes a scattering pattern(284) corresponding to a plurality of buttons.