US Patent Issued to Sharp on April 8 for "Light-emitting element, light-emitting device, method for manufacturing light-emitting element, and method for driving light-emitting element" (Japanese Inventor)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,274,115, issued on April 8, was assigned to Sharp K.K. (Sakai, Japan).

"Light-emitting element, light-emitting device, method for manufacturing light-emitting element, and method for driving light-emitting element" was invented by Yusuke Sakakibara (Sakai, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting element includes: a cathode; an anode; and an electron-transport layer, a light-emitting layer, and a hole-transport layer provided, between the cathode and the anode, in a stated order from the cathode. At least one of the electron-transport layer or the hole-transport layer includes: a first charge-transport layer and a second cha...