Title:
有機エレクトロルミネッセンス素子及び照明装置
Document Type and Number:
Japanese Patent JP5817742
Kind Code:
B2
Abstract:
An object is providing an organic electroluminescence element and an illumination device in which a driving voltage does not increase even when a high-productivity sputtering method is used to form a transparent conductive layer of the organic electroluminescence element of a top or top-and-bottom emission type, and hence which has an improved driving voltage. The organic electroluminescence element includes at least a light emitting layer and a transparent conductive layer. Between the light emitting layer and the transparent conductive layer, a transparent protective layer is disposed. The light emitting layer contains a phosphorescence emitting compound. The transparent protective layer contains a metal oxide. The metal oxide is a molybdenum (VI) oxide, a rhenium (VI) oxide or a nickel (II) oxide in an oxygen deficient state.
Inventors:
Ken Hagii
Hiroshi Ishishiro
Hiroshi Ishishiro
Application Number:
JP2012557888A
Publication Date:
November 18, 2015
Filing Date:
February 06, 2012
Export Citation:
Assignee:
Konica Minolta Co., Ltd.
International Classes:
H01L51/50; C07D213/79; C07D221/10; C07D233/58; C07D401/14; C07D405/14; C07D409/14; C07D417/14; C07D519/00; C09K11/06; H05B33/26; H05B33/28
Domestic Patent References:
| JP2009212222A | 2009-09-17 | |||
| JP2011009517A | 2011-01-13 | |||
| JP2010251675A | 2010-11-04 | |||
| JP2005158583A | 2005-06-16 | |||
| JP2005158693A | 2005-06-16 | |||
| JP2008041692A | 2008-02-21 | |||
| JP2005135706A | 2005-05-26 |
Foreign References:
| WO2011040193A1 | 2011-04-07 |
Attorney, Agent or Firm:
Gwangyang International Patent Office