Title:
有機エレクトロルミネッセンス素子
Document Type and Number:
Japanese Patent JP4621201
Kind Code:
B2
Abstract:
An organic electroluminescent device including in sequence an anode, a first emitting layer (5), a carrier barrier layer (6), a second emitting layer (7) and a cathode stacked; wherein the ionization potential of the carrier barrier layer (6) is more than the ionization potential of the first emitting layer (5) by 0.1 eV or more and the affinity level of the carrier barrier layer (6) is less than the affinity levels of the first emitting layer (5) and the second emitting layer (7) by 0.1 eV or more.
Inventors:
Arakane Takashi
Kuma Hitoshi
Hisayuki Kawamura
Toshihiro Iwakuma
Hosokawa local tide
Kuma Hitoshi
Hisayuki Kawamura
Toshihiro Iwakuma
Hosokawa local tide
Application Number:
JP2006513497A
Publication Date:
January 26, 2011
Filing Date:
March 15, 2005
Export Citation:
Assignee:
IDEMITSU KOSAN CO.,LTD.
International Classes:
H05B33/12; C09K11/06; H01L51/00; H01L51/50; H05B33/14; H05B33/22
Domestic Patent References:
| JP2005276583A | 2005-10-06 | |||
| JP2005100921A | 2005-04-14 | |||
| JP2002313553A | 2002-10-25 | |||
| JP2001093671A | 2001-04-06 | |||
| JP2000315581A | 2000-11-14 | |||
| JPH0878163A | 1996-03-22 |
Foreign References:
| WO2005099313A1 | 2005-10-20 | |||
| WO2005020643A1 | 2005-03-03 |
Attorney, Agent or Firm:
Kihei Watanabe