| abstract |
An optical film arranged with a plurality of convex microlenses (10), said microlenses having a region α (11) and a region β (12), said region β being located on a convex outer portion of said microlens, And cover the position of the area α: both the area α and the area β contain resin, and the optical film whose refractive index n 1 of the resin in the area α is higher than the refractive index n 2 of the resin in the area β; An optical film in which the region β contains particles, the region α contains particles as needed, and the particle content ratio P1 in the region α is lower than the particle content ratio P2 in the region β ; or the region α An optical film that contains fine particles, the region β contains fine particles as needed, and the fine particle content ratio P1 in the region α is higher than the fine particle content ratio P2 in the region β. |