| abstract |
A microstructure having excellent reflectivity, pencil hardness and crack resistance is provided. A microstructure in which a concavity having a substantially circular or substantially polygonal opening is formed on a surface, the average width of the opening being 400 nm or less, and two or more in the molecule The microstructure which is a hardened | cured material of the photocurable composition (A) which contains 80 mass% or more of compounds (Ax) which have a (meth) acrylate group with respect to the total amount of a polymeric compound. [Selection figure] None |