OPTICAL FUNCTIONAL FILM AND METHOD OF MANUFACTURING THE SAME

摘要

A light emitting element includes a light emitting layer emitting light and a refractive index composite structure layer arranged in a light path of the light output from the light emitting layer. The refractive index composite structure layer includes a structure having characteristics (1) to (4) as follows: (1) an internal configuration includes two or more types of phases differing in refractive index; (2) at least one of the two or more types of phases includes a structural unit having a size greater than or equal to 1 nm and smaller than or equal to ¼ of a wavelength within a visible light wavelength range; (3) an average refractive index is higher than 1 and lower than a refractive index of a plurality of layers between a light emitter and the refractive index composite structure layer excepting a layer including a gas phase; and (4) the internal configuration in a thickness direction includes a plurality of interfaces between the two or more types of phases in a near-field region into which light as energy can enter from an interface between the optical functional film and another layer adjacent to the refractive index composite structure layer.