Title:
有機電界発光素子
Document Type and Number:
Japanese Patent JP6786393
Kind Code:
B2
Abstract:
Provided is a homogeneous organic EL device having a low driving voltage, high luminous efficiency, and a long lifetime. The device is an organic electroluminescent device including a light-emitting layer between an anode and a cathode opposite to each other, in which: the light-emitting layer contains a host material and a light-emitting dopant material; the host material is a material obtained by preliminarily mixing two or more kinds of compounds selected from compounds each having a structure in which two nitrogen atoms of an indolocarbazole ring are each substituted with an aromatic hydrocarbon group or an aromatic heterocyclic group; and the light-emitting layer is formed by co-depositing the preliminarily mixed host material and the light-emitting dopant material in a vacuum.
Inventors:
Tadashi Tadashi
Takahiro Kai
Masanori Hotta
Junya Ogawa
Mitsuru Sakai
Hiroshi Ikenaga
Ueda Kiko
Katsuhide Noguchi
Takahiro Kai
Masanori Hotta
Junya Ogawa
Mitsuru Sakai
Hiroshi Ikenaga
Ueda Kiko
Katsuhide Noguchi
Application Number:
JP2016548800A
Publication Date:
November 18, 2020
Filing Date:
August 26, 2015
Export Citation:
Assignee:
Nippon Steel Chemical & Material Co., Ltd.
International Classes:
H01L51/50; H05B33/10
Domestic Patent References:
| JP2013530515A | ||||
| JP2008293961A | ||||
| JP2014519707A | ||||
| JP2013528929A |
Foreign References:
| WO2009136596A1 | ||||
| WO2010098246A1 | ||||
| WO2012087955A1 | ||||
| WO2011148909A1 | ||||
| WO2013002053A1 |
Attorney, Agent or Firm:
Kazuya Sasaki
Katsuo Naruse
Eiichi Sano
Katsumi Hara
Shuji Hisamoto
Katsuo Naruse
Eiichi Sano
Katsumi Hara
Shuji Hisamoto