LIGHT EXTRACTION FILM, SURFACE LIGHT EMITTING BODY, AND METHOD FOR PRODUCING LIGHT EXTRACTION FILM

摘要

A light extraction film, the constituent materials of which include a matrix resin (X), an ionic liquid (Y) and light diffusion fine particles (Z). A surface light emitting body which comprises the light extraction film. A method for producing a light extraction film to be laminated on a substrate of an EL element, which comprises supply of a mixture that contains an active energy ray curable composition, an ionic liquid (Y) and light diffusion fine particles (Z) between a base and a die that has a transfer part having a recessed and projected structure and irradiation of an active energy ray.