A display device comprises a projection device projecting a display image, an aerial imaging element, and a distribution mechanism in which distribution units are arranged at a given interval. An interval between the distribution units is determined according to a relationship between a number of view point pixels constituting a pixel unit, a number of pixel units, a distance from the pixel unit at a center to the pixel unit at an edge, a distance from a distribution unit at a center to the distribution unit at an edge, a pitch of the view point pixel, an angle of light from the pixel unit at the center emitted to the distribution unit, and an angle of the emitted light, an angle of light from the pixel unit at the edge emitted to the distribution unit, and an angle of the emitted light, a distance between the projection device and the distribution units, a refractive index of the distribution mechanism, a distance between the real image and an optimal viewing position for a viewer, and a projection width.