ALEXANDRIA, Va., June 6 -- United States Patent no. 12,284,860, issued on April 22, was assigned to Sharp K.K. (Sakai, Japan).
"Light-emitting element having a p-type hole transport layer with n-type nanoparticles dispersed therein and a display device thereof" was invented by Shinichi Handa (Sakai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting element includes: an anode; a cathode; a light-emitting layer between the anode and the cathode; and a hole transport layer between the anode and the light-emitting layer, the hole transport layer including: a p-type semiconductor layer of a p-type semiconductor material provided in a form of a layer; and a n-type semiconductor material dispers...