公开(公告)号：US10283727B2

公开(公告)日：2019-05-07

申请号：US15718381

申请日：2017-09-28

Applicant: JOLED INC.

Inventor： Kosuke Mishima

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

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. Lowest unoccupied molecular orbital (LUMO) level of the electron transport layer is lower than at least one of LUMO level of the electron injection layer and Fermi level of a metal material included in the electron injection layer, and film thickness of the electron injection layer is greater than film thickness of the electron transport layer.

公开(公告)号：US20180254303A1

公开(公告)日：2018-09-06

申请号：US15885089

申请日：2018-01-31

Applicant: JOLED INC.

Inventor： Kosuke Mishima

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

CPC classification number: H01L27/3211 ,  G09G3/3208 ,  G09G3/3233 ,  G09G2310/0264 ,  H01L27/3246 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5262 ,  H01L51/5265 ,  H01L2251/558

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：US10665806B2

公开(公告)日：2020-05-26

申请号：US16359222

申请日：2019-03-20

Applicant: JOLED INC.

Inventor： Kosuke Mishima

IPC: H01L29/08 ,  H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H01L51/00

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.

公开(公告)号：US10529953B2

公开(公告)日：2020-01-07

申请号：US16143475

申请日：2018-09-27

Applicant: JOLED INC.

Inventor： Kosuke Mishima

IPC: H01L29/08 ,  H01L35/24 ,  H01L51/00 ,  H01L51/52 ,  H01L51/50 ,  H01L27/32

Abstract: An organic electroluminescent element according to one embodiment of the disclosure includes a first reflective layer, a second reflective layer, an organic light-emitting layer, a silver electrode layer, and an ytterbium electron injection layer. The organic light-emitting layer is provided between the first reflective layer and the second reflective layer, and emits monochromatic light. The silver electrode layer is provided between the organic light-emitting layer and the second reflective layer. The ytterbium electron injection layer is in contact with the silver electrode layer on side of the organic light-emitting layer.

公开(公告)号：US10381589B2

公开(公告)日：2019-08-13

申请号：US15220852

申请日：2016-07-27

Applicant: JOLED INC.

Inventor： Kosuke Mishima ,  Junko Tanaka ,  Hiroshi Katagiri ,  Takahiro Komatsu

IPC: H01L51/50 ,  H01L51/52

Abstract: An organic electroluminescence (EL) element including an anode, a light-emitting layer above the anode, a first functional layer on and in contact with the light-emitting layer, a second functional layer on and in contact with the first functional layer, and a cathode above the second functional layer. A lowest unoccupied molecular orbital (LUMO) level of the first functional layer is lower than at least one of a LUMO level of the second functional layer and a Fermi level of a metal material included in the second functional layer.

公开(公告)号：US10297776B2

公开(公告)日：2019-05-21

申请号：US15204288

申请日：2016-07-07

Applicant: JOLED INC.

Inventor： Kosuke Mishima ,  Yoshiyuki Ota ,  Junko Tanaka ,  Takahiro Komatsu ,  Hiroshi Katagiri

IPC: H01L29/08 ,  H01L51/50 ,  H01L27/32 ,  H01L51/00

Abstract: An organic electroluminescence (EL) element including an anode, a cathode opposing the anode, a light-emitting layer between the anode and the cathode, a hole transport layer in contact with the light-emitting layer, between the light-emitting layer and the anode, and an electron transport layer in contact with the light-emitting layer, between the light-emitting layer and the cathode. A difference between a lowest unoccupied molecular orbital (LUMO) level of an organic material included in the light-emitting layer and a LUMO level of an organic material included in the electron transport layer is greater than a difference between a highest occupied molecular orbital (HOMO) level of an organic material included in the hole transport layer and a HOMO level of the organic material included in the light-emitting layer.

公开(公告)号：US09184406B2

公开(公告)日：2015-11-10

申请号：US14260711

申请日：2014-04-24

Applicant: JOLED INC.

Inventor： Takashi Isobe ,  Kosuke Mishima ,  Kaori Akamatsu ,  Satoru Ohuchi

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

CPC classification number: H01L51/5056 ,  H01L27/3246 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/56 ,  H01L2251/562

Abstract: A method of manufacturing an organic light-emitting element is provided. A first layer is formed above a substrate, and exhibits hole injection properties. A bank material layer is formed above the first layer using a bank material. Banks are formed by patterning the bank material layer, and forming a resin film on a surface of the first layer by attaching a portion of the bank material layer to the first layer. The banks define apertures corresponding to light-emitters. The resin material is the same as the bank material. A functional layer is formed by applying ink to the apertures that contacts the resin film. The ink contains an organic material. The functional layer includes an organic light-emitting layer. A second layer is formed above the functional layer and exhibits electron injection properties. The hole injection properties of the first layer are degraded by applying electrical power to an element structure.

Abstract translation: 提供一种制造有机发光元件的方法。 第一层形成在衬底之上，并且具有空穴注入性能。 使用堤材料在第一层上形成堤层材料层。 通过图案化堤层材料层形成堤，并且通过将堤层材料层的一部分附着到第一层上而在第一层的表面上形成树脂膜。 银行定义对应于发光体的孔。 树脂材料与银料相同。 通过向与树脂膜接触的孔施加油墨形成功能层。 墨水含有有机材料。 功能层包括有机发光层。 在功能层上方形成第二层，具有电子注入性。 第一层的空穴注入性能通过向元件结构施加电力而劣化。