公开(公告)号：US20210098727A1

公开(公告)日：2021-04-01

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.

公开(公告)号：US20190115556A1

公开(公告)日：2019-04-18

申请号：US16160486

申请日：2018-10-15

Applicant: LG Display Co., Ltd.

Inventor： Tae-Yang LEE ,  Seul-Gi CHOI ,  Min-Surk HYUNG

IPC: H01L51/50 ,  H01L51/52 ,  H01L27/32 ,  G09G3/3225

Abstract: A light emitting diode and a light emitting display device are disclosed. The light emitting diode includes a first electrode and a second electrode facing each other; and a hole transporting layer between the first electrode and the second electrode, wherein the hole transporting layer includes an inorganic compound of a chemical formula 1, A:M1:M2, where the A is a semiconductor nano particle or a nano inorganic particle selected from a metal oxide group, and the M1 and M2 are different from each other and represent metal positive ions which the A is doped with.