Title:
ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO2004058911
Kind Code:
A3
Abstract:
The invention relates to the improvement of organic electroluminescent devices. Said devices are characterised in that the emitting layer (EML) consists of a mixture of two substances, one having hole-conductive characteristics and the other having light-emitting characteristics and that at least one of said substances contains a spiro-9,9'-difluoro unit.
Inventors:
VESTWEBER HORST (DE)
GERHARD ANJA (DE)
STOESSEL PHILIPP (DE)
SPREITZER HUBERT (DE)
GERHARD ANJA (DE)
STOESSEL PHILIPP (DE)
SPREITZER HUBERT (DE)
Application Number:
PCT/EP2003/013927
Publication Date:
December 08, 2005
Filing Date:
December 09, 2003
Export Citation:
Assignee:
COVION ORGANIC SEMICONDUCTORS (DE)
VESTWEBER HORST (DE)
GERHARD ANJA (DE)
STOESSEL PHILIPP (DE)
SPREITZER HUBERT (DE)
VESTWEBER HORST (DE)
GERHARD ANJA (DE)
STOESSEL PHILIPP (DE)
SPREITZER HUBERT (DE)
International Classes:
C07C13/72; C07C25/22; C07C211/54; C07C211/61; C07D209/86; C07D285/14; C07D417/14; C09K11/06; H01L51/30; H01L51/50; H01L51/52; H01L51/00; (IPC1-7): C09K11/06; H01L51/30; H05B33/14; C07C13/72
Domestic Patent References:
| WO2002077060A1 | 2002-10-03 | |||
| WO2002051850A1 | 2002-07-04 |
Foreign References:
| EP1220339A2 | 2002-07-03 |
Other References:
SALBECK J; YU N; BAUER J; WEISSÖRTEL F; BESTGEN H: "Low molecular organic glasses for blue electroluminescence", SYNTHETIC METALS, vol. 91, 1997, pages 209 - 215, XP002277588
SPREITZER H ET AL: "WHITE AND BLUE TEMPERATURE STABILE AND EFFICIENT OLEDS USING AMORPHOUS SPIRO TRANSPORT AND SPIRO EMITTING COMPOUNDS", PROCEEDINGS OF THE SPIE, SPIE, BELLINGHAM, VA, US, vol. 4105, 31 July 2000 (2000-07-31), pages 125 - 133, XP008017672, ISSN: 0277-786X
WU C C ET AL: "HIGHLY BRIGHT BLUE ORGANIC LIGHT-EMITTING DEVICES USING SPIROBIFLUORENE-CORED CONJUGATED COMPOUNDS", 22 July 2002, APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, PAGE(S) 577-579, ISSN: 0003-6951, XP001130317
TOKITO S ET AL: "Influence of hole transporting material on device performance in organic light-emitting diode", THIN SOLID FILMS, ELSEVIER-SEQUOIA S.A. LAUSANNE, CH, vol. 363, no. 1-2, March 2000 (2000-03-01), pages 290 - 293, XP004189329, ISSN: 0040-6090
SPREITZER H ET AL: "WHITE AND BLUE TEMPERATURE STABILE AND EFFICIENT OLEDS USING AMORPHOUS SPIRO TRANSPORT AND SPIRO EMITTING COMPOUNDS", PROCEEDINGS OF THE SPIE, SPIE, BELLINGHAM, VA, US, vol. 4105, 31 July 2000 (2000-07-31), pages 125 - 133, XP008017672, ISSN: 0277-786X
WU C C ET AL: "HIGHLY BRIGHT BLUE ORGANIC LIGHT-EMITTING DEVICES USING SPIROBIFLUORENE-CORED CONJUGATED COMPOUNDS", 22 July 2002, APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, PAGE(S) 577-579, ISSN: 0003-6951, XP001130317
TOKITO S ET AL: "Influence of hole transporting material on device performance in organic light-emitting diode", THIN SOLID FILMS, ELSEVIER-SEQUOIA S.A. LAUSANNE, CH, vol. 363, no. 1-2, March 2000 (2000-03-01), pages 290 - 293, XP004189329, ISSN: 0040-6090
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