ALEXANDRIA, Va., June 9 -- United States Patent no. 12,289,936, issued on April 29, was assigned to Sharp K.K. (Osaka, Japan).
"Light-emitting element, light-emitting device" was invented by Jun Sakuma (Osaka, Japan) and Yasushi Asaoka (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting element includes a first light-emitting layer including a first quantum dot and a second light-emitting layer including a second quantum dot provided between the cathode electrode and an anode electrode in order from the cathode electrode, the first quantum dot has a core-shell structure including a first core and a first shell, the second quantum dot has a core-shell structure including a second cor...