Title:
有機エレクトロルミネッセンス素子
Document Type and Number:
Japanese Patent JP7105607
Kind Code:
B2
Abstract:
To provide an organic EL element in which a host material that realizes high light emission efficiency and low driving voltage is included in a light emitting layer, and that has high efficiency and low power consumption in a forward structure organic EL element, and that is highly efficient not only when the organic EL element is applied to a forward structure but also when the organic EL element is applied to an inverted structure element that is advantageous for making the organic EL element flexible.SOLUTION: In an organic EL element, a laminated structure including a light emitting layer is formed between two electrodes, the light emitting layer includes a guest material and a host material, and the host material includes a compound represented by the following general formula (1).SELECTED DRAWING: None
Inventors:
Yukiko Iwasaki
Hirohiko Fukagawa
Takao Shimizu
Hirohiko Fukagawa
Takao Shimizu
Application Number:
JP2018093191A
Publication Date:
July 25, 2022
Filing Date:
May 14, 2018
Export Citation:
Assignee:
Japan Broadcasting Corporation
International Classes:
C09K11/06; H01L51/50
Domestic Patent References:
| JP2015065225A | ||||
| JP2015097201A | ||||
| JP2017527129A | ||||
| JP2014503502A |
Foreign References:
| US20180123049 | ||||
| KR1020170113808A | ||||
| KR1020160051212A | ||||
| EP3315581A1 |
Other References:
BIAN, Chenglin et al.,Orthogonally substituted aryl derivatives as bipolar hosts for blue phosphorescent organic light-emitting diodes,Organic Electronics,2017年03月30日,Vol.46,pp.105-114
LEE, Dong Ryun et al.,Ideal Molecular Design of Blue Thermally Activated Delayed Fluorescent Emitter for High Efficiency, Small SingletTriplet Energy Splitting, Low Efficiency Roll-Off, and Long Lifetime,ACS Appl. Mater. Interfaces,2016年08月16日,Vol.8,pp.23190-23196
LEE, Dong Ryun et al.,Ideal Molecular Design of Blue Thermally Activated Delayed Fluorescent Emitter for High Efficiency, Small SingletTriplet Energy Splitting, Low Efficiency Roll-Off, and Long Lifetime,ACS Appl. Mater. Interfaces,2016年08月16日,Vol.8,pp.23190-23196
Attorney, Agent or Firm:
Shu Oikawa
Naoyuki Takada
Hiroyuki Matsumoto
Ikuichiro Kinoshita
Naoyuki Takada
Hiroyuki Matsumoto
Ikuichiro Kinoshita