ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,884, issued on Jan. 13, was assigned to ALPS ALPINE Co. LTD. (Tokyo).
"Display device" was invented by Chihiro Oshima (Fukushima, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A display device is capable of displaying an aerial video image by utilizing retroreflection. The display device includes a light source configured to emit a video image from an emission surface; a first retroreflective member arranged on one end side of the light source to be inclined outward at a first inclination angle with respect to a normal to the emission surface; a second retroreflective member arranged on another end side of the light source to be inclined outw...