The present invention provides an information processing device and the like for a display device to represent, on the display device, a three-dimensional spatial representation that can be seen from a wide viewpoint direction. The display device includes a refraction means for refracting light and having a circle-shaped cross section; an arrangement support means for arranging and supporting a plurality of the refraction means in a convex shape with respect to a viewpoint side, and an image forming means for forming a formed-image on an opposite side surface to the viewpoint side with respect to the refraction means. The information processing device extracts an image data of a display element image displayed on each of the refraction means so as to look like three-dimensional spatial representation, from a three-dimensional spatial representation data for three-dimensional-spatially representing a display target, and generates a formed-image data for forming the formed-image in the opposite side to the viewpoint side of the predetermined refraction means so that the display element image can be displayed by a light having passed through the predetermined refraction means.