Patent ID: 8728571

Claim:
A fabrication method for a functional surface which has transparency and anti-reflectivity with self-cleaning ability by photolysis, comprising: a) arranging a plurality of first beads having a sphere shape on a first surface of a transparent substrate, the arranged first beads having a first average particle size Rmean; b) etching the arranged first beads to form first etched beads having a first pre-determined inter-bead gap R between the first etched beads; c) etching the substrate using the first etched beads having the first predetermined inter-bead gap R as an etching mask to form a first surface unevenness on the first surface of the substrate; d) removing the first etched beads from the first surface of the substrate; e) forming a photocatalytic layer on the first surface of the substrate formed with the first surface unevenness so that the first surface of the substrate formed with the first surface unevenness has superhydrophilic ability; f) arranging a plurality of second beads having a sphere shape in a single layer on a second surface which is opposite to the first surface formed with the first surface unevenness, the arranged second beads having a second average particle size Rmean; g) etching the arranged second beads arranged on the second surface to form second etched beads having a second pre-determined inter-bead gap R between the second etched beads; h) etching the substrate using the second etched beads having the second predetermined gap R as an etching mask to form a second surface unevenness on the second surface of the substrate; i) removing the second etched beads from the second surface; and j) forming a compound layer having a surface tension of 18 to 28 N/m on the second surface of the substrate formed with the second surface unevenness, wherein the compound layer is made of diamond like carbon (DLC), wherein the first or second predetermined inter-bead gap R is adjusted by the etching of the arranged first or second beads in such a way that the first or second surface of the substrate formed with the first or second surface unevenness has the anti-reflective property.