OPTICAL SHEET AND OPTICAL SHEET MANUFACTURING METHOD

摘要

An optical sheet and an optical sheet manufacturing method are provided to enhance reproducibility of a diffusion pattern for diffusing the light and productivity, and to reduce a manufacturing cost thereof. An optical sheet(1) is formed with a light-transmitting resin having a light-transmitting property. The optical sheet includes a pattern layer and a core layer. A diffusion pattern is formed on a surface of the pattern layer in order to diffuse the light. The viscosity of the core layer is higher than viscosity of the pattern layer. The core layer is formed on a backside of the pattern layer. The pattern layer and the core layer are formed with the same resin.