Title:
有機エレクトロルミネッセンス素子及び有機エレクトロルミネッセンスディスプレイ
Document Type and Number:
Japanese Patent JP4942934
Kind Code:
B2
Abstract:
The present invention is an organic EL device in which an anode, a hole injection layer, a first carrier transportation layer, a first luminescent layer, a second carrier transportation layer, a second luminescent layer, an electron transportation layer, and a cathode are formed on a glass substrate in order, wherein layers with a smaller electron affinity Ea and a larger energy gap Eg than those of the first and second luminescent layers are employed for the first and second carrier transportation layers, so as to enhance the emission efficiency of the first and second luminescent layers.
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Inventors:
Masatoshi Kinoshita
Yuichiro Itai
Masaya Nakayama
Atsushi Kodama
Yuichiro Itai
Masaya Nakayama
Atsushi Kodama
Application Number:
JP2004562852A
Publication Date:
May 30, 2012
Filing Date:
December 25, 2002
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
H05B33/12; C09K11/06; G09F9/30; H01L27/32; H01L51/50; H01L51/52; H05B33/14; H01L51/00
Domestic Patent References:
| JPH0636877A | 1994-02-10 | |||
| JP2005527090A | 2005-09-08 | |||
| JP2004522276A | 2004-07-22 |
Foreign References:
| WO2003100880A2 | 2003-12-04 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda