Title:
発光素子、発光装置、表示装置および電子機器
Document Type and Number:
Japanese Patent JP6435625
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a light-emitting element having excellent light-emitting characteristics and life characteristics, and further to provide a light-emitting device being provided with the light-emitting element and being excellent in reliability, a display device and an electronic apparatus.SOLUTION: A light-emitting layer (light-emitting section) of a light-emitting element is configured so as to contain a light-emitting material, a host material and an assist dopant material. One of the host material and the assist dopant material is a material having high electronic transport properties, and the other is a material having high hole transport properties. When a HOMO level, a LUMO level, hole mobility and electronic mobility in the host material are represented by HOMO, LUMO, μhand μe, respectively, and a HOMO level, a LUMO level, hole mobility and electronic mobility in the assist dopant material are represented by HOMO, LUMO, μhand μe, respectively, a relational expression (A) is satisfied.
Inventors:
Hidetoshi Yamamoto
Fukase Akio
Fukase Akio
Application Number:
JP2014078250A
Publication Date:
December 12, 2018
Filing Date:
April 04, 2014
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
H01L51/50; G09F9/30; H01L27/32
Domestic Patent References:
| JP2001052870A | ||||
| JP8055974A | ||||
| JP2011249436A | ||||
| JP2010231997A | ||||
| JP2013125653A | ||||
| JP2009093982A | ||||
| JP2007110102A |
Foreign References:
| WO2012102243A1 |
Attorney, Agent or Firm:
Tatsuya Masuda
Kazuo Asahi
Kazuo Asahi