OPTICAL SHEET HAVING ANTI-SHEET WARPING PROPERTY AND LCD BACK LIGHT UNIT THEREBY

摘要

PURPOSE: An optical sheet and a back light unit for liquid crystal display device using the same are provided to ensure deformation resistance by high temperature, moisture, and heat and minimize the deformation of the optical sheet. CONSTITUTION: A base film(100) is made of transparent material. A hard coating layer(110) is formed at both sides of the base film and prevents moisture penetration to the base film. The base film is made of glass, transparent synthetic resin, and metal plate. The hard coating layer is made of acrylate monomer. The pencil hardness of the hardcoating layer is 2H~10H.