公开(公告)号：US20210343968A1

公开(公告)日：2021-11-04

申请号：US17372520

申请日：2021-07-12

Applicant: JOLED Inc.

Inventor： Kosuke MISHIMA ,  Koyo SAKAMOTO ,  Muneharu SATO

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

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：US20200373494A1

公开(公告)日：2020-11-26

申请号：US16877509

申请日：2020-05-19

Applicant: JOLED Inc.

Inventor： Tomohiko ODA ,  Shinichiro ISHINO ,  Toshiyuki AKIYAMA ,  Mineki HASEGAWA ,  Yasuhiro SEKIMOTO ,  Muneharu SATO

IPC: H01L51/00 ,  H01L51/56 ,  C09D11/033 ,  C09K11/02

Abstract: Disclosed is a light-emitting layer-forming ink useful in forming an organic light-emitting layer for an organic EL element by a printing process, including a tetralin-based organic solvent, and a solute including an anthracene-based, low molecular material and dissolved at a concentration of 3% or higher and 12% or lower in the tetralin-based organic solvent.

公开(公告)号：US20160164040A1

公开(公告)日：2016-06-09

申请号：US14908337

申请日：2014-07-23

Applicant: JOLED INC.

Inventor： Keiko KURATA ,  Muneharu SATO ,  Tetsuro KONDOH ,  Shinichiro ISHINO

IPC: H01L51/52

CPC classification number: H01L51/5271 ,  H01L27/3211 ,  H01L51/5234 ,  H01L51/5265 ,  H01L51/5275

Abstract: Each of blue light emitting elements includes: a photoanode; a translucent cathode; an organic light emitting layer between the photoanode and the translucent cathode; a first functional layer between the organic light emitting layer and the photoanode; and a second functional layer between the organic light emitting layer and the translucent cathode, and has a resonator structure. The first functional layer has an optical film thickness of 48-62 nm. The translucent cathode is a stack of a first translucent conductive layer, a metal layer, and a second translucent conductive layer stacked in this order from the second functional layer side. The first translucent conductive layer has a refractivity of 2.0-2.4, and a film thickness of 85-97 nm. The metal layer has a refractivity different by 0 to 2.0 from that of the first translucent conductive layer, and has a film thickness of 2-22 nm.

Abstract translation: 蓝色发光元件中的每一个包括：光电阳极; 半透明阴极; 在光电阳极和半透明阴极之间的有机发光层; 有机发光层和光电阳极之间的第一功能层; 和有机发光层与半透明阴极之间的第二功能层，并具有谐振器结构。 第一功能层的光学膜厚度为48-62nm。 半透明阴极是从第二功能层侧依次层叠的第一透光性导电层，金属层和第二透光性导电层的叠层。 第一半透明导电层的折射率为2.0-2.4，膜厚为85-97nm。 金属层的折射率与第一透光性导电层的折射率相差0〜2.0，膜厚为2〜22nm。

公开(公告)号：US20220158112A1

公开(公告)日：2022-05-19

申请号：US17529277

申请日：2021-11-18

Applicant: JOLED Inc.

Inventor： Toshiyuki AKIYAMA ,  Shinichiro ISHINO ,  Yasuhiro SEKIMOTO ,  Muneharu SATO ,  Takeshi KAMIYA ,  Tomohiko ODA ,  Mineki HASEGAWA ,  Masakazu TAKATA

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

Abstract: An organic EL element including an anode, a first functional layer including organic material, disposed above the anode, a second functional layer including organic material, disposed on and in contact with the first functional layer, a light emitting layer disposed on and in contact with the second functional layer, and a cathode disposed above the light emitting layer. A highest occupied molecular orbital (HOMO) level of the organic material of the second functional layer has an energy level at least 0.2 eV lower than that of a HOMO level of the organic material of the first functional layer, and film thickness of the second functional layer is 15 nm or less.

公开(公告)号：US20210167312A1

公开(公告)日：2021-06-03

申请号：US16953370

申请日：2020-11-20

Applicant: JOLED Inc.

Inventor： Toshiyuki AKIYAMA ,  Yasuhiro SEKIMOTO ,  Muneharu SATO ,  Shinichiro ISHINO ,  Tomohiko ODA ,  Mineki HASEGAWA

IPC: H01L51/50 ,  H01L51/56

Abstract: An organic electroluminescence element including an anode, a light-emitting layer, a functional layer, and a cathode stacked in this order. The light-emitting layer and the functional layer are in contact with each other. Hole mobility of the light-emitting layer is greater than electron mobility of the light-emitting layer. The electron mobility of the light-emitting layer is equal to or greater than an effective electron mobility of the functional layer. A highest occupied molecular orbital (HOMO) level of a first functional material included in the light-emitting layer is at least 0.4 eV greater than a HOMO level of a second functional material included in the functional layer.