RETARDATION FILM AND PROCESS FOR PRODUCING THE SAME, OPTICAL FUNCTIONAL FILM, POLARIZING FILM, AND DISPLAY APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a highly reliable retardation film without causing the problems of peeling off of the retardation layer from the base material or the like occurring in the forming of the retardation layer, capable of easily providing an optional retardation value even for a small amount, and having improved adhering property with a hydrophilic film such as a polarizing layer.

SOLUTION: The retardation film comprises a polymer film containing a material having refractive index anisotropy, wherein the material having refractive index anisotropy has a concentration gradient in a thickness direction of the polymer film.

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