Optical sheets, sheet articles, polarizing plates, touch panel components, display devices, and substrates with easy-adhesive layers

Abstract

The optical sheet comprises a substrate and a first functional layer laminated in a first direction. The thickness of the first functional layer is 20 nm to 250 nm. The rate of change of the face of the first functional layer opposite to the substrate in a cross-section along the first direction is 1.02 to 1.19. The rate of change is the ratio of the length of the face within a reference range to the length between the two ends of the face within the reference range. The length between the two ends of the face within the reference range is 1.3 μm.

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