A glasses-type display comprising: a lens unit including a plurality of photonic crystal pattern units (21,22,23), each of the plurality of photonic crystal pattern units configured to selectively reflect light of different wavelength bands from an image supply unit, each of the plurality of photonic crystal pattern units comprising a plurality of pixels which are patterned based on the different wavelengths; a leg unit coupled to the lens unit; and the image supply unit configured to supply an image to the lens unit, characterized in that the plurality of photonic crystal pattern units comprise: a first photonic crystal pattern unit including first pixels configured to reflect light of a first wavelength band; a second photonic crystal pattern unit including second pixels configured to reflect light of a second wavelength band; and a third photonic crystal pattern unit including third pixels configured to reflect light of a third wavelength band, wherein each of the first to third pixels of the plurality of photonic crystal pattern units comprises: a first electrode; a second electrode facing the first electrode; the first and second electrode being each an electrode common to all pixels of a photonic crystal pattern unit; a medium between the first electrode and the second electrode; and charged nanoparticles dispersed in the medium in a lattice pattern, and wherein the glasses-type display is configured to simultaneously display an image from the image supply unit and an external image. a lens unit including a plurality of photonic crystal pattern units (21,22,23), each of the plurality of photonic crystal pattern units configured to selectively reflect light of different wavelength bands from an image supply unit, each of the plurality of photonic crystal pattern units comprising a plurality of pixels which are patterned based on the different wavelengths; a leg unit coupled to the lens unit; and the image supply unit configured to supply an image to the lens unit, characterized in that the plurality of photonic crystal pattern units comprise: a first photonic crystal pattern unit including first pixels configured to reflect light of a first wavelength band; a second photonic crystal pattern unit including second pixels configured to reflect light of a second wavelength band; and a third photonic crystal pattern unit including third pixels configured to reflect light of a third wavelength band, wherein each of the first to third pixels of the plurality of photonic crystal pattern units comprises: a first electrode; a second electrode facing the first electrode; the first and second electrode being each an electrode common to all pixels of a photonic crystal pattern unit; a medium between the first electrode and the second electrode; and charged nanoparticles dispersed in the medium in a lattice pattern, and wherein the glasses-type display is configured to simultaneously display an image from the image supply unit and an external image. a first photonic crystal pattern unit including first pixels configured to reflect light of a first wavelength band; a second photonic crystal pattern unit including second pixels configured to reflect light of a second wavelength band; and a third photonic crystal pattern unit including third pixels configured to reflect light of a third wavelength band, wherein each of the first to third pixels of the plurality of photonic crystal pattern units comprises: a first electrode; a second electrode facing the first electrode; the first and second electrode being each an electrode common to all pixels of a photonic crystal pattern unit; a medium between the first electrode and the second electrode; and charged nanoparticles dispersed in the medium in a lattice pattern, and wherein the glasses-type display is configured to simultaneously display an image from the image supply unit and an external image. a first electrode; a second electrode facing the first electrode; the first and second electrode being each an electrode common to all pixels of a photonic crystal pattern unit; a medium between the first electrode and the second electrode; and charged nanoparticles dispersed in the medium in a lattice pattern, and wherein the glasses-type display is configured to simultaneously display an image from the image supply unit and an external image.