Title:
LIGHT-EMITTING COMPONENT
Document Type and Number:
WIPO Patent Application WO2003100879
Kind Code:
A3
Abstract:
The invention relates to a light-emitting component (LED) comprising a support (1), electrodes (2, 5), a light-emitting layer (4) and, optionally, one or more additional layers (3). Said light-emitting layer (4) contains at least two organic constituents that emit light in different colors. One of the constituents is provided in excess, and the emission of light by the constituent or constituents not provided in excess is reduced or entirely suppressed in locally defined regions with regard to the rest of the layer as a result of a radiochemical process. This component, which can be produced in a rapid and economical manner, can be advantageously used in devices that require a structured polychromatic light emission.
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Inventors:
KERN WOLFGANG (AT)
ZOJER EGBERT (AT)
ZOJER EGBERT (AT)
Application Number:
PCT/AT2003/000156
Publication Date:
May 13, 2004
Filing Date:
May 28, 2003
Export Citation:
Assignee:
KERN WOLFGANG (AT)
ZOJER EGBERT (AT)
AUSTRIA WIRTSCHAFTSSERV GMBH (AT)
ZOJER EGBERT (AT)
AUSTRIA WIRTSCHAFTSSERV GMBH (AT)
International Classes:
C09K11/06; H01L51/40; H01L51/50; H05B33/10; H01L51/00; H01L51/30; (IPC1-7): H01L51/20
Foreign References:
| EP0903965A1 | 1999-03-24 |
Other References:
SHIRAI S ET AL: "Fabrication of multi color polymer EL devices using the photo-bleaching method", J. PHOTOPOLYM. SCI. TECHNOL. (JAPAN), JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY, 2001, TECH. ASSOC. PHOTOPOLYMERS, JAPAN, vol. 14, no. 2, 2001, pages 317 - 322, XP008028741, ISSN: 0914-9244
KAVC T ET AL: "Reductive photopatterning of phenylene-vinylene-based polymers", MATER. RES. SOC. PROCEEDINGS VOL.707, 2002, SELF-ASSEMBLY PROCESSES IN MATERIALS. SYMPOSIUM, BOSTON, MA, USA, 26-30 NOV. 2001, 2002, WARRENDALE, PA, USA, MATER. RES. SOC, USA, pages 55 - 60, XP008028723, ISBN: 1-55899-643-5
TADA K ET AL: "PHOTOINDUCED MODIFICATION OF PHOTOLUMINESCENT AND ELECTROLUMINESCENT PROPERTIES IN POLY(P-PHENYLENE VINYLENE) DERIVATIVE", JOURNAL OF APPLIED PHYSICS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 86, no. 6, 15 September 1999 (1999-09-15), pages 3134 - 3139, XP000934935, ISSN: 0021-8979
KAVC T ET AL: "Reductive photopatterning of phenylene-vinylene-based polymers", MATER. RES. SOC. PROCEEDINGS VOL.707, 2002, SELF-ASSEMBLY PROCESSES IN MATERIALS. SYMPOSIUM, BOSTON, MA, USA, 26-30 NOV. 2001, 2002, WARRENDALE, PA, USA, MATER. RES. SOC, USA, pages 55 - 60, XP008028723, ISBN: 1-55899-643-5
TADA K ET AL: "PHOTOINDUCED MODIFICATION OF PHOTOLUMINESCENT AND ELECTROLUMINESCENT PROPERTIES IN POLY(P-PHENYLENE VINYLENE) DERIVATIVE", JOURNAL OF APPLIED PHYSICS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 86, no. 6, 15 September 1999 (1999-09-15), pages 3134 - 3139, XP000934935, ISSN: 0021-8979
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