Abstract: By fitting a planar microlens array provided with one or more marks with a liquid crystal panel provided with one or more corresponding marks, it is possible to align the position of both exactly. The marks according to the present invention may comprise rod shapes, cross shapes, ring shapes, or square shapes, among others.

Abstract: A planar microlens array includes an array of convex microlenses made of an ultraviolet-curable synthetic resin having a high refractive index and disposed on a surface of a base glass plate. A cover glass plate is bonded to the array of convex microlenses by an adhesive layer made of an ultraviolet-curable synthetic resin having a low refractive index. A film made of an ultraviolet-curable synthetic resin is applied to a surface of the base glass plate remote from the array of convex microlenses. The film serves to prevent the planar microlens array from being warped when the ultraviolet-curable synthetic resin of the array of convex microlenses and the adhesive layer are cured.