ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,399,533, issued on Aug. 26, was assigned to Folding All Inc. (Seoul, South Korea).
"Portable display device" was invented by Si-Han Kim (Gwangju-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A portable display device is provided in which two display panels are joined to each other to form a single screen when two panel housings are unfolded from a folded state. The portable display device includes at least two panel housings and display panels that are mounted on the panel housings, respectively. When the panel housings are unfolded, the display panels are joined to each other to form a single screen. The distance between the display pa...