An anti-reflective structure

摘要

An anti-reflective film (17) has an anti-reflective structure having many micro holes (19) extending from a reference surface (18a) (first surface) in the thickness direction of the film. Each of the holes has an opening (20a) exposed at the reference surface, and a bottom (20b) facing a second surface (18b) on the attachment side. Light incident on the anti-reflective film is mostly introduced into the holes through the openings and diffused by the bottoms, thereby avoiding reflection at a predetermined angle. The ratio of a connecting surface which reflects light is suppressed to increase the ratio of the openings, thereby maximizing the anti-reflective ability of the anti-reflective structure.