公开(公告)号：US20200176704A1

公开(公告)日：2020-06-04

申请号：US16630595

申请日：2019-07-01

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Gang YU ,  Zhou CHEN

IPC: H01L51/52 ,  H01L51/50 ,  H01L51/00

Abstract: The present disclosure provides a light emitting diode, a method of preparing the same, and a display device. The light emitting diode includes an anode, a light emitting layer, an electron transport layer, a cathode, and a metal transition layer located between the electron transport layer and the cathode, the cathode including a transparent conductive oxide material, and a material of the metal transition layer having a work function WF between an LUMO of a material of the electron transport layer and a work function WF of a material of the cathode.