Microlens array sheet and manufacturing method thereof

Abstract

Disclosed herein are a microlens array sheet and a manufacturing method thereof. The microlens array sheet comprises: a transparent substrate to be arrayed with microlenses; bases formed on the transparent substrate to a height determined by a user, the bases being formed at the same positions as microlenses to be formed later; microlenses formed on the bases; and a gap-filling film applied on the resulting structure, in which the bases have the same height as a result of a planarization process conducted for the upper portion of the bases. The method comprises the steps of: (a) depositing base-forming molds having a shape and thickness desired by a user on a transparent support substrate or film and loading a material to be used as bases between the base-forming molds; (b) polishing the upper portion of the material for use as bases so as to form bases having the same level and removing the base-forming molds; (c) depositing microlenses on the formed bases; and (d) depositing a gap-filling film on the resulting structure.

Dependencies are inferred from the claim text.