Dai Nippon Printing Co., Ltd.

Masashi Miyashita

Kazunobu Ogawa

An optical film according to an embodiment includes a substrate, a surface memberprovided on a front surface of the substrate, and an optical functional layerprovided on a back surface of the substrate. The optical functional layerincludes a low-refractive index layerand a high-refractive index layer, and an interface between the low-refractive index layerand the high-refractive index layerhas a recessed/protruding shape. The refractive index of the high-refractive index layer, the refractive index of the substrate, and the refractive index of the surface memberbecome smaller in this order.

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Tokyo, Japan

Masashi Miyashita