OPTICAL SHEET

摘要

PURPOSE: An optical sheet is provided to improve the brightness of a front side by changing a light path from a structured surface. CONSTITUTION: An optical sheet comprises a high refractive layer(30) and a particle coating layer(40). A high refraction layer covers the entire surface of a pattern layer(20). The high refraction layer is formed on the structured surface while having a certain thickness. The high refractive layer has a high refractive index of 0.05-20%. A particle-coated layer is formed to be adjacent to a flat layer of high refraction layer.