公开(公告)号：US09577222B2

公开(公告)日：2017-02-21

申请号：US14869234

申请日：2015-09-29

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Ryohei Yamaoka ,  Shogo Uesaka

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

CPC classification number: H01L51/5265 ,  H01L27/3211 ,  H01L27/3216 ,  H01L27/322 ,  H01L27/323 ,  H01L51/504 ,  H01L51/5068 ,  H01L51/5084 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5215 ,  H01L51/5221 ,  H01L51/5234 ,  H01L2251/5376 ,  H01L2251/558

Abstract: To provide a novel light-emitting device with high productivity, the light-emitting device includes a first light-emitting element, a second light-emitting element, and a third light-emitting element. In the first light-emitting element, a first lower electrode, a first transparent conductive layer, a first light-emitting layer, a second light-emitting layer, and an upper electrode are stacked in this order. In the second light-emitting element, a second lower electrode, a second transparent conductive layer, the first light-emitting layer, the second light-emitting layer, and the upper electrode are stacked in this order. In the third light-emitting element, a third lower electrode, a third transparent conductive layer, the second light-emitting layer, and the upper electrode are stacked in this order. The first transparent conductive layer includes a first region. The second transparent conductive layer includes a second region as thick as the third transparent conductive layer. The first region is thicker than the second region.

Abstract translation: 为了提供高生产率的新颖的发光装置，发光装置包括第一发光元件，第二发光元件和第三发光元件。 在第一发光元件中，依次堆叠第一下电极，第一透明导电层，第一发光层，第二发光层和上电极。 在第二发光元件中，依次层叠第二下部电极，第二透明导电层，第一发光层，第二发光层和上部电极。 在第三发光元件中，依次层叠第三下电极，第三透明导电层，第二发光层和上电极。 第一透明导电层包括第一区域。 第二透明导电层包括与第三透明导电层一样厚的第二区域。 第一区域比第二区域厚。

公开(公告)号：US20150041792A1

公开(公告)日：2015-02-12

申请号：US14452841

申请日：2014-08-06

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tsunenori Suzuki ,  Shogo Uesaka ,  Ryohei Yamaoka ,  Satoshi Seo

IPC: H01L51/50

CPC classification number: H01L51/5278 ,  H01L27/3209 ,  H01L27/3211 ,  H01L27/322 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0077 ,  H01L51/0085 ,  H01L51/0091 ,  H01L51/5012 ,  H01L2251/53

Abstract: A tandem light-emitting element in which generation of crosstalk can be suppressed even when the element is applied to a high-definition display is provided. In the tandem light-emitting element, a layer in contact the anode side of an intermediate layer contains 2,9-bis(naphthalen-2-yl)-4,7-diphenyl-1,10-phenanthroline (abbreviation: NBPhen).

Abstract translation: 即使将元件应用于高分辨率显示器也可以抑制串扰发生的串联发光元件。 在串联发光元件中，与中间层的阳极侧接触的层含有2,9-双（萘-2-基）-4,7-二苯基-1,10-菲咯啉（缩写：NBPhen）。