Title:
ORGANIC ELECTROLUMINESCENT DEVICE
Document Type and Number:
WIPO Patent Application WO2005029606
Kind Code:
A3
Abstract:
The organic electroluminescent device of the present invention has at least one organic compound layer containing a light-emitting layer between an anode and a cathode. The organic compound layer contains a fluorescent light-emitting compound emitting fluorescence at a time that voltage is applied and an amplifying agent. A phosphorescent light-emitting maximum wavelength of the amplifying agent is 500 nm or less, and the light emission at a time that voltage is applied is derived mainly from light emission of a fluorescent compound. In order to amplify intensity of emission at a time that voltage is applied It is preferable that the amplifying agent be capable of amplifying the number of singlet excitons generated at a time that voltage is applied .
Inventors:
IGARASHI TATSUYA (JP)
Application Number:
PCT/JP2004/014011
Publication Date:
March 09, 2006
Filing Date:
September 17, 2004
Export Citation:
Assignee:
FUJI PHOTO FILM CO LTD (JP)
IGARASHI TATSUYA (JP)
IGARASHI TATSUYA (JP)
International Classes:
H01L51/30; H01L51/50; H01L51/00; (IPC1-7): H01L51/20; H01L51/30
Domestic Patent References:
| WO2001008230A1 | 2001-02-01 | |||
| WO2001091203A2 | 2001-11-29 |
Foreign References:
| US20020125818A1 | 2002-09-12 | |||
| EP1175128A2 | 2002-01-23 |
Other References:
D'ANDRADE BRIAN W ET AL: "High-efficiency yellow double-doped organic light-emitting devices based on phosphor-sensitized fluorescence", APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 79, no. 7, 13 August 2001 (2001-08-13), pages 1045 - 1047, XP012030036, ISSN: 0003-6951
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