Title:
有機電界発光素子
Document Type and Number:
Japanese Patent JP4050939
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an organic electroluminescence device using fluorochrome with low driving voltage, solidity, and excellent light emitting efficiency. SOLUTION: For the organic electroluminescence device having a substrate on which, an organic layer and a negative electrode are sequentially laminated, the organic layer contains chromone group compound shown by formula (1). In the formula, R<1> -R<4> represent hydrogen atom, alkyl group, alkoxyl group, or the like, Y represents oxygen atom, or the like, Z represents direct bond, aromatic heterocycle, or the like, and n represents 0 or 1.
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Inventors:
Hideki Sato
Yoshiharu Sato
Kyoko Endo
Yukichi Murata
Yoshiharu Sato
Kyoko Endo
Yukichi Murata
Application Number:
JP2002192850A
Publication Date:
February 20, 2008
Filing Date:
July 02, 2002
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
H01L51/50; C07D311/30; C07D311/60; C07D407/04; C07D409/04; C07D455/04; C09B57/00; C09K11/06; H05B33/14
Domestic Patent References:
| JP2001081451A | ||||
| JP7133482A |
Foreign References:
| WO2002079343A1 | ||||
| CN1274738A |
Attorney, Agent or Firm:
Yasuo Yokokura