Fine concave-convex laminate and production method therefor, and camera module-mounted device

A camera module-mounted device comprising a camera module and a display plate,

• wherein the display plate includes a first transparent organic layer laminated on at least part of a surface thereof, and a second transparent organic layer laminated on the first transparent organic layer,
• the first transparent organic layer has a fine concave-convex structure at a surface facing the second transparent organic layer,
• the second transparent organic layer has a first fine concave-convex structure at a surface facing the first transparent organic layer, a second fine concave-convex structure at an opposite surface, and a base part between the first fine concave-convex structure and the second fine concave-convex structure,
• a thickness of a composite layer composed of the first transparent organic layer and the second transparent organic layer is 15 μm or less,
• a distance between a vertex of a deepest concave portion in the first fine concave-convex structure and a vertex of a deepest concave portion in the second fine concave-convex structure in a lamination direction is 0.01 nm or more and 100 nm or less,
• the following Formulas (1), (2) and (3) are satisfied:
• n0<n2 (1)
• 2n0−n2≤n1≤2n2−n0 (2)
• 2n0−n2<n1<n2 (3)
• where n0 is a refractive index of the display plate in a visible light wavelength range, n1 is a refractive index of the first transparent organic layer in the visible light wavelength range, and n2 is a refractive index of the second transparent organic layer in the visible light wavelength range, and
• the camera module is set facing the second transparent organic layer.

A fine concave-convex laminate comprising a substrate, a first transparent organic layer, and a second transparent organic layer laminated in the stated order,

• wherein the first transparent organic layer has a fine concave-convex structure at a surface facing the second transparent organic layer,
• the second transparent organic layer has a first fine concave-convex structure at a surface facing the first transparent organic layer, a second fine concave-convex structure at an opposite surface and a base part between the first fine concave-convex structure and the second fine concave-convex structure,
• a thickness of a composite layer composed of the first transparent organic layer and the second transparent organic layer is 15 μm or less,
• a distance between a vertex of a deepest concave portion in the first fine concave-convex structure and a vertex of a deepest concave portion in the second fine concave-convex structure in a lamination direction is 0.01 nm or more and 100 nm or less,
• the following Formulas (1), (2) and (3) are satisfied:
• n0<n2 (1)
• 2n0−n2≤n1≤2n2−n0 (2)
• 2n0−n2<n1<n2 (3)
• where n0 is a refractive index of the substrate in a visible light wavelength range, n1 is a refractive index of the first transparent organic layer in the visible light wavelength range, and n2 is a refractive index of the second transparent organic layer in the visible light wavelength range, and
• a depth of each of concave portions in the second fine concave-convex structure is 150 nm or more and 300 nm or less.