公开(公告)号：US09530828B2

公开(公告)日：2016-12-27

申请号：US14889321

申请日：2014-05-07

Applicant: JOLED INC.

Inventor： Tatsuya Matsumi

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

CPC classification number: H01L27/3248 ,  H01L27/3211 ,  H01L27/3244 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5218 ,  H01L51/5265 ,  H01L2251/308 ,  H01L2251/558

Abstract: There is provided an organic EL display unit having superior light emission efficiency and superior display performance. This display unit includes two or more kinds of organic light-emitting devices, each of the organic light-emitting devices having a laminated configuration in which a first electrode layer, an organic layer, and a second electrode layer are laminated in order on a base, and the organic light-emitting devices configured to emit light of different colors. The organic layer includes a common light-emitting layer and an individual light-emitting layer, the common light-emitting layer shared by all of the kinds of organic light-emitting devices, and the individual light-emitting layer provided in only a kind configured to emit specific color light of the kinds of organic light-emitting devices. Some of the kinds of organic light-emitting devices each include a transparent conductive layer between the first electrode layer and the organic layer.

Abstract translation: 提供了具有优异的发光效率和优异的显示性能的有机EL显示单元。 该显示单元包括两种或更多种有机发光器件，每个有机发光器件具有层叠结构，其中第一电极层，有机层和第二电极层依次层叠在基底上 以及被配置为发射不同颜色的光的有机发光器件。 有机层包括共同的发光层和单独的发光层，所有类型的有机发光装置共用的共同的发光层，以及仅配置在各种有机发光装置中的各个发光层 以发射各种有机发光器件的特定颜色光。 有机发光器件中的一些各自包括在第一电极层和有机层之间的透明导电层。

公开(公告)号：US10784456B2

公开(公告)日：2020-09-22

申请号：US15993567

申请日：2018-05-30

Applicant: JOLED INC.

Inventor： Kazuhiro Yoneda ,  Tatsuya Matsumi ,  Noriyuki Matsusue

IPC: H01L29/08 ,  H01L33/00 ,  H01L31/0203 ,  H01L21/00 ,  H01L51/40 ,  H01L51/50

Abstract: An organic electroluminescent unit is provided with a plurality of organic electroluminescent elements. At least one of the organic electroluminescent elements includes, in order, a first electrode, a hole transport layer, a light-emitting layer, an electron transport layer, and a second electrode. The hole transport layer, the light-emitting layer, and the electron transport layer satisfy the following expressions: ΔEg(T1)≥0 eV ΔEg(T1)=ETa+ETb−2×ETEML where ETa represents a T1 level of the hole transport layer, ETb represents a T1 level of the electron transport layer, and ETEML represents a T1 level of the light-emitting layer.