Patent ID: 8502939
Filing Date: 2013-08-06
Classification: G02B,G02F

Abstract:
1. An optical sheet having anti-glare properties for use as a display device surface, the optical sheet comprising: a base material; and a functional layer having an outer surface and an interior, the functional layer being formed by curing an ionizing radiation curable resin on at least one side of the base material, and having a diffusion factor on at least one of the outer surface and the interior of the functional layer, wherein the relationship represented by the following formula (I) is satisfied, S: Diffuse regular reflection intensity/regular reflection intensity of base material β: The diffusion angle exhibiting ⅓ of the diffusion intensity, obtained by extrapolating a straight line connecting the reflection intensity for diffuse regular reflection intensity at ±2 degrees and the reflection intensity for diffuse regular reflection at ±1 degree or the reflection intensity for diffuse regular reflection intensity at −2 degrees and the reflection intensity for diffuse regular reflection at −1 degree, to the diffuse regular reflection angle.