Patent ID: 8007109

Claim:
A three-dimensional display device, comprising: a display panel displaying first to n th partial images along a circumference; and an n-gonal pyramid mirror including first to n th mirrors at n side surfaces, respectively, of the n-gonal pyramid mirror, wherein the first to n th mirrors reflect the first to n th partial images, respectively, and wherein each of the first to n th mirrors substantially makes a 45 degree angle with the display panel, wherein an apex of the n-gonal pyramid mirror is below the display panel and is at a first distance from the display panel, wherein first to n th image planes corresponding to the first to n th partial images face the first to n th mirrors, respectively, and wherein each of the first to n th image planes is at the first distance from a center axis of the n-gonal pyramid mirror toward the corresponding mirror, wherein the first to n th image planes forms n side surfaces of an n-gonal prism, and wherein a side of a regular n-gonal upper surface of the n-gonal prism has a length of a second distance and a distance between a center of the regular n-gonal upper surface of the n-gonal prism and the side of the regular n-gonal upper surface of the n-gonal prism is the first distance.