ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,550,580, issued on Feb. 10, was assigned to MAGNOLIA WHITE Corp. (Tokyo).
"Display device" was invented by Asami Sakamoto (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to one embodiment, a display device includes a first light emitting layer provided in center in plan view, a first metal oxide layer provided on the first light emitting layer, a ring-shaped second light emitting layer provided to surround the first light emitting layer, a second metal oxide layer provided on the second light emitting layer, a ring-shaped third light emitting layer provided to surround the second light emitting layer, a third metal oxide layer provided o...