公开(公告)号：US20160329388A1

公开(公告)日：2016-11-10

申请号：US15150065

申请日：2016-05-09

Applicant: JOLED INC. ,  Japan Display Inc.

Inventor： Kazuhiro YOKOTA ,  Masaki NISHIMURA ,  Hiroyuki AJIKI

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

CPC classification number: H01L27/3246 ,  H01L27/3211 ,  H01L27/323 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5036 ,  H01L51/5265 ,  H01L2251/55 ,  H01L2251/558

Abstract: An organic electroluminescence (EL) element emitting blue light from a light emitting surface and including: a first electrode; an organic light-emitting layer disposed on the first electrode and/or closer to the light emitting surface than the first electrode; and a second electrode disposed on the organic light-emitting layer and/or closer to the light emitting surface than the organic light-emitting layer. In the organic EL element emitting blue light, the organic light-emitting layer contains an organic light-emitting material emitting, through photoluminescence, blue light that has a CIE y coordinate no greater than 0.13 such that a luminance drop due to film shape is suppressed to 10% or smaller.

Abstract translation: 一种从发光表面发射蓝光的有机电致发光（EL）元件，包括：第一电极; 设置在所述第一电极上和/或比所述第一电极更靠近所述发光表面的有机发光层; 以及设置在有机发光层上和/或比有机发光层更靠近发光面的第二电极。 在发射蓝色光的有机EL元件中，有机发光层含有通过光致发光发射CIE y坐标不大于0.13的蓝色光的有机发光材料，使得由于膜形状引起的亮度降低被抑制 至10％以下。

公开(公告)号：US20160126489A1

公开(公告)日：2016-05-05

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 ,  H01L51/56 ,  H01L51/50

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.

Abstract translation: 有机EL元件包括：作为金属层的第一电极; 含有氧化铟锌的透明导电层; 以及其中堆叠第一电极，透明导电层和发光层的发光层，并且在透明导电层的界面附近的锌与铟的比例低于或等于 0.25，界面更靠近发光层。

公开(公告)号：US20190013364A1

公开(公告)日：2019-01-10

申请号：US16027181

申请日：2018-07-03

Applicant: JOLED INC.

Inventor： Kazuhiro YOKOTA

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

Abstract: An organic electroluminescent element includes, in order, an anode, an organic layer including a light-emitting layer, and a cathode. The organic layer further includes a first organic layer that is provided between the light-emitting layer and the anode, and includes a hole transport layer. The hole transport layer includes a material having an absorption coefficient of 0.01 or greater and 0.06 or less. The light-emitting layer has a light-emitting center receding from a first interface of the light-emitting layer by a thickness greater than 0 and equal to or less than 0.4, where the light-emitting layer has a thickness of 1. The first interface is adjacent to the anode. The organic electroluminescent element further includes a microcavity structure in which the position of the interface is a resonance point.

公开(公告)号：US20180097050A1

公开(公告)日：2018-04-05

申请号：US15722407

申请日：2017-10-02

Applicant: JOLED INC.

Inventor： Kazuhiro YOKOTA ,  Hideyuki SHIRAHASE ,  Takahiro KOMATSU ,  Masaki NISHIMURA

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

CPC classification number: H01L27/3246 ,  H01L27/3258 ,  H01L51/0005 ,  H01L51/5209 ,  H01L51/5215 ,  H01L51/5253 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/303

Abstract: An organic EL element includes a planarized layer arranged on a substrate, an insulation layer which is arranged on the planarized layer with the region corresponding to a subpixel of the planarized layer left exposed at least partly, a pixel electrode which has an opening that defines the region corresponding to the subpixel and which is arranged on a bank arranged on the insulation layer and on the exposed part of the planarized layer, a transparent conductive layer arranged on the pixel electrode, an emission layer arranged in the opening and above at least the transparent conductive layer, and a counter electrode arranged above the emission layer. The insulation layer is interposed between a bottom of the bank and the planarized layer. An upper surface of the planarized layer is coated with at least one of the pixel electrode and the insulation layer.

公开(公告)号：US20200295290A1

公开(公告)日：2020-09-17

申请号：US16817614

申请日：2020-03-13

Applicant: JOLED Inc.

Inventor： Hiroki TSUJIMURA ,  Kazuhiro YOKOTA ,  Hideyuki SHIRAHASE ,  Kazuhiro YONEDA

IPC: H01L51/50 ,  H01L51/56

Abstract: Disclosed is a self light-emitting element including a first electrode, a light-emitting layer disposed above the first electrode, a function layer disposed above the light-emitting layer, and doped with a metal, and a second electrode disposed above the function layer, in which the function layer has a multilayer structure of at least three layers including an uppermost layer, a lowermost layer, and an intermediate layer between the uppermost layer and the lowermost layer, and the intermediate layer is doped with the metal at a lower concentration than the uppermost layer and the lowermost layer.

公开(公告)号：US20170092710A1

公开(公告)日：2017-03-30

申请号：US15312183

申请日：2015-05-20

Applicant: JOLED INC.

Inventor： Yuuki ABE ,  Kazuhiro YOKOTA ,  Yasuharu SHINOKAWA ,  Kou SUGANO ,  Eiji TAKEDA

IPC: H01L27/32

CPC classification number: H01L27/3262 ,  H01L27/1225 ,  H01L27/3244 ,  H01L29/78606 ,  H01L29/78693 ,  H01L51/5206 ,  H01L51/5218 ,  H01L2227/323 ,  H01L2251/5315

Abstract: An organic EL element including: a TFT substrate having a TAOS-TFT; and an organic EL unit having a lower electrode. The lower electrode includes an aluminum containing metal layer, a transition metal containing oxide layer disposed between the aluminum containing metal layer and the TFT substrate, and an aluminum containing oxide layer disposed between the aluminum containing metal layer and the transition metal containing oxide layer and in contact with both the aluminum containing metal layer and the transition metal containing oxide layer. The aluminum containing oxide layer contains aluminum oxide. The transition metal containing oxide layer contains tungsten oxide and has a density of 6.5 g/cm3 or more.

公开(公告)号：US20160163985A1

公开(公告)日：2016-06-09

申请号：US14962208

申请日：2015-12-08

Applicant: JOLED INC.

Inventor： Kazuhiro YOKOTA ,  Yuuki ABE ,  Jun HASHIMOTO

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

CPC classification number: H01L51/0021 ,  H01L51/5218 ,  H01L51/5234 ,  H01L51/56

Abstract: A method for manufacturing an organic light-emitting element, including: preparing a substrate; forming a light-reflective layer above the substrate, the light-reflective layer containing Al or an Al alloy; forming an alumina layer by oxidizing a part of the light-reflective layer; forming a metal layer on the alumina layer, the metal layer containing a metal having electrical conductivity regardless of whether or not the metal is oxidized; forming an electrically-conductive layer on the metal layer, the electrically-conductive layer containing a light-transmissive oxide; and forming an organic light-emitting layer and a light-transmissive electrode above the electrically-conductive layer.

Abstract translation: 一种有机发光元件的制造方法，包括：准备基板; 在所述基板上形成光反射层，所述光反射层含有Al或Al合金; 通过氧化所述光反射层的一部分而形成氧化铝层; 在所述氧化铝层上形成金属层，所述金属层含有具有导电性的金属，而不管所述金属是否被氧化; 在所述金属层上形成导电层，所述导电层含有透光性氧化物; 以及在导电层之上形成有机发光层和透光电极。