ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,846, issued on May 27, was assigned to Alps Alpine Co. LTD (Tokyo).
"Display device" was invented by Katsunari Ashimine (Fukushima, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Implementations of a display device of the present disclosure include a transparent light guide plate in which a light guide plate image that is an original video of an aerial image is formed on a bottom portion, a light source configured to emit light L from a side portion of the light guide plate toward the inside of the light guide plate, a polarization beam splitter disposed in parallel with the light guide plate and above the light guide plate, a Lambda/4 plate d...