公开(公告)号：US11489130B2

公开(公告)日：2022-11-01

申请号：US17023809

申请日：2020-09-17

Applicant: LG DISPLAY CO., LTD.

Inventor： Jeong-Eun Won ,  Seul-Gi Choi

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00

Abstract: The present disclosure provides a quantum dot (QD) light emitting diode including: a first electrode and a second electrode facing each other; a QD emitting material layer positioned between the first electrode and the second electrode and including a QD; a hole auxiliary layer positioned between the first electrode and the QD emitting material layer; and an electron transporting layer positioned between the QD emitting material layer and the second electrode and including an electron-property material and a hole-property material.