公开(公告)号：US09825250B2

公开(公告)日：2017-11-21

申请号：US14897021

申请日：2014-06-30

Applicant: JOLED INC.

Inventor： Kazuhiro Yokota ,  Yuuki Abe ,  Yasuharu Shinokawa ,  Kosuke Mishima

IPC: H01L51/52 ,  H01L51/50 ,  H01L51/56

CPC classification number: H01L51/5218 ,  H01L27/3244 ,  H01L51/5088 ,  H01L51/5096 ,  H01L51/5215 ,  H01L51/56 ,  H01L2251/308 ,  H01L2251/5315 ,  H01L2251/558

Abstract: An organic EL element includes: a first electrode that is a metal layer; a transparent conductive layer containing indium zinc oxide; and a light-emitting layer, wherein the first electrode, the transparent conductive layer, and the light-emitting layer are stacked, and a ratio of zinc to indium in a vicinity of an interface of the transparent conductive layer is lower than or equal to 0.25, the interface being closer to the light-emitting layer.

公开(公告)号：US11758749B2

公开(公告)日：2023-09-12

申请号：US17372520

申请日：2021-07-12

Applicant: JOLED Inc.

Inventor： Kosuke Mishima ,  Koyo Sakamoto ,  Muneharu Sato

IPC: H10K50/17 ,  H10K50/818 ,  H10K50/828 ,  H10K59/35 ,  H10K71/00 ,  H10K102/00

CPC classification number: H10K50/171 ,  H10K50/818 ,  H10K50/828 ,  H10K59/35 ,  H10K71/00 ,  H10K2102/351

Abstract: An organic electroluminescence element includes an anode, an organic light emitting layer disposed on an upper side of the anode, a first functional layer disposed over the organic light emitting layer and including NaF, a second functional layer disposed over the first functional layer and including an organic material containing Yb, and a cathode disposed on an upper side of the second functional layer. A method of manufacturing an organic electroluminescence element, includes forming an anode, forming an organic light emitting layer on an upper side of the anode, forming a first functional layer including NaF over the organic light emitting layer, forming a second functional layer including an organic material containing Yb over the first functional layer, and forming a cathode on an upper side of the second functional layer.

公开(公告)号：US11456435B2

公开(公告)日：2022-09-27

申请号：US16028416

申请日：2018-07-06

Applicant: JOLED INC.

Inventor： Kosuke Mishima

IPC: H01L51/50 ,  H01L51/52

Abstract: An organic electroluminescent element includes, in order, a first electrode, an organic light-emitting layer, a buffer layer, a metal thin film, an organic electron transport layer, and a second electrode. The buffer layer includes an electrically-conductive organic material. The metal thin film includes a metal or a metal alloy. The organic electron transport layer is doped with a metal. The metal in the metal thin film is the same as the metal doped in the organic electron transport layer. The metal alloy in the metal thin film includes a metal that is the same as the metal doped in the organic electron transport layer.

公开(公告)号：US10529941B2

公开(公告)日：2020-01-07

申请号：US16011836

申请日：2018-06-19

Applicant: JOLED INC.

Inventor： Kosuke Mishima

IPC: H01L29/08 ,  H01L51/50 ,  H01L51/52 ,  G09G3/3258

Abstract: An organic electroluminescent element includes, in order, a first electrode, an organic light-emitting layer, a metal thin film including a metal or a metal alloy, an organic electron transport layer doped with a metal, and a second electrode. The metal in the metal thin film is identical to the metal doped in the organic electron transport layer. The metal alloy in the metal thin film includes a metal identical to the metal doped in the organic electron transport layer.

公开(公告)号：US11031570B2

公开(公告)日：2021-06-08

申请号：US16663389

申请日：2019-10-25

Applicant: JOLED Inc.

Inventor： Kosuke Mishima

IPC: H01L51/00 ,  H01L51/50 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: An organic electroluminescence element includes an anode, an organic light emitting layer disposed on an upper side of the anode, a functional layer which is disposed over the organic light emitting layer, in which a rare earth metal and other material are present mixedly, and in which part of the rare earth metal is oxidized, and a cathode disposed on an upper side of the functional layer. A method of manufacturing an organic electroluminescence element includes forming an anode, forming an organic light emitting layer on an upper side of the anode, forming over the organic light emitting layer a functional layer in which a rare earth metal and other material are present mixedly and part of the rare earth metal is oxidized, and forming a cathode on an upper side of the functional layer.

公开(公告)号：US10818863B2

公开(公告)日：2020-10-27

申请号：US16124195

申请日：2018-09-07

Applicant: JOLED INC.

Inventor： Kosuke Mishima

IPC: H01L51/50 ,  H01L51/52

Abstract: An organic electroluminescent element according to one embodiment of the disclosure includes, in order, an anode, an organic light-emitting layer, an electron transport layer, an intermediate layer, and a cathode. The electron transport layer includes a sodium fluoride layer. The intermediate layer includes an ytterbium layer. The ytterbium layer is in contact with the sodium fluoride layer on side of the cathode.

公开(公告)号：US10553650B2

公开(公告)日：2020-02-04

申请号：US15885089

申请日：2018-01-31

Applicant: JOLED INC.

Inventor： Kosuke Mishima

IPC: H01L27/32 ,  H01L51/52 ,  G09G3/3208 ,  G09G3/3233

Abstract: An organic electroluminescent element includes an organic electroluminescent part and a pair of partition walls. The organic electroluminescent part includes an organic material layer, a resonator, and a film-thickness adjustment layer. The film-thickness adjustment layer has a thickness that is adjusted to allow a difference between a height of a pinning position and a height of a middle position of an upper surface of the organic material layer to fall within a predetermined range. The pinning position is a position at which the upper surface of the organic material layer and each of the partition walls are in contact with each other.

公开(公告)号：US20180375049A1

公开(公告)日：2018-12-27

申请号：US16011836

申请日：2018-06-19

Applicant: JOLED INC.

Inventor： Kosuke Mishima

IPC: H01L51/50 ,  H01L51/52 ,  G09G3/3258

CPC classification number: H01L51/5024 ,  G09G3/3258 ,  H01L51/5056 ,  H01L51/5076 ,  H01L51/5092 ,  H01L51/5218 ,  H01L51/5234

Abstract: An organic electroluminescent element includes, in order, a first electrode, an organic light-emitting layer, a metal thin film including a metal or a metal alloy, an organic electron transport layer doped with a metal, and a second electrode. The metal in the metal thin film is identical to the metal doped in the organic electron transport layer. The metal alloy in the metal thin film includes a metal identical to the metal doped in the organic electron transport layer.

公开(公告)号：US11508928B2

公开(公告)日：2022-11-22

申请号：US17104025

申请日：2020-11-25

Applicant: JOLED Inc.

Inventor： Kosuke Mishima

IPC: H01L51/50 ,  H01L51/56 ,  G09G3/3258 ,  H01L27/32

Abstract: A self-luminous element includes: a pixel electrode; a light-emitting layer that is disposed above the pixel electrode and includes a light-emitting material; a first functional layer that is disposed on the light-emitting layer and includes a metal fluoride; a second functional layer that is disposed on the first functional layer and includes a first organic material having at least one of electron transport properties and electron injection properties; and a counter electrode that is disposed above the second functional layer. The second functional layer does not include at least one metallic element selected from the group consisting of alkali metals, alkaline earth metals, and rare earth metals that reduce the metal fluoride.

公开(公告)号：US20190221765A1

公开(公告)日：2019-07-18

申请号：US16359222

申请日：2019-03-20

Applicant: JOLED INC.

Inventor： Kosuke Mishima

IPC: H01L51/50 ,  H01L51/56 ,  H01L51/52

CPC classification number: H01L51/5004 ,  H01L51/0097 ,  H01L51/5012 ,  H01L51/5072 ,  H01L51/5076 ,  H01L51/5092 ,  H01L51/5218 ,  H01L51/5234 ,  H01L51/5275 ,  H01L51/56 ,  H01L2251/301 ,  H01L2251/5338 ,  H01L2251/552 ,  H01L2251/558

Abstract: An organic EL element includes an anode, a cathode opposing the anode, a light-emitting layer disposed between the anode and the cathode, an electron transport layer disposed in contact with a cathode-side surface of the light-emitting layer, and an electron injection layer disposed between the electron transport layer and the cathode, in contact with the electron transport layer. A difference between the lowest unoccupied molecular orbital (LUMO) level of the light-emitting layer and the LUMO level of the electron transport layer is at least 0.5 eV. The film thickness of the electron injection layer is greater than the film thickness of the electron transport layer.