Patent ID: 10259149

Abstract:
A structure with a substrate, and a fine-unevenness-structure layer provided to at least one surface of the substrate, wherein the fine-unevenness-structure layer is disposed at a surface of the structure, the indentation elastic modulus of the structure is 1-1300 MPa, and the ratio (Δμ) of the rate of change of the coefficient of kinetic friction of the surface of the structure is 0.15-1.05, wherein Δμ=Δμf/Δμs: Δμs represents the rate of change of the coefficient of kinetic friction of the surface of the structure at an initial-abrasion stage of a reciprocating abrasion test; and Δμf represents the rate of change of the coefficient of kinetic friction of the surface of the structure immediately prior to the end of the reciprocating abrasion test. This structure exhibits excellent scratch resistance without compromising on the optical performance thereof, such as the antireflection performance.