ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,527,213, issued on Jan. 13, was assigned to Sharp K.K. (Sakai, Japan).
"Light-emitting element and light-emitting device" was invented by Masanobu Mizusaki (Sakai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A light-emitting element includes at least: 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 is a film containing a mixture of a hole-transport material and a polysiloxane-based polymer. The light-emitting element further includes: a first electron-transport layer between the light-emitting layer and the cathode;...