Title:
ORGANIC LIGHT-EMITTING DEVICE AND LIGHT-EMITTING APPARATUS COMPRISING THE DEVICE
Document Type and Number:
WIPO Patent Application WO/2003/014257
Kind Code:
A2
Abstract:
Platinum and iridium are both noble metals, and therefore the their complexes are also expensive, producing bad effects on cost reduction in the future, too. A triplet light-emitting material is provided inexpensively more than conventional. An inexpensive bright organic light-emitting device of low power consumption and a light-emitting apparatus using the organic light-emitting device are also provided. The organic light-emitting device capable of converting the triplet excitation energy to light emission can be produced by applying a chelate complex of which the central metal is tungsten, which is an inexpensive, heavy atom, to the organic light-emitting device. A bright, inexpensive light-emitting apparatus of low power consumption and an electric appliance using the light-emitting apparatus can be provided by applying the organic light-emitting device using metal complexes.
Inventors:
SEO SATOSHI (JP)
TOKUDA ATSUSHI (JP)
NAKAMURA YASUO (JP)
TOKUDA ATSUSHI (JP)
NAKAMURA YASUO (JP)
Application Number:
PCT/IB2002/003011
Publication Date:
February 20, 2003
Filing Date:
April 15, 2002
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
SEO SATOSHI (JP)
TOKUDA ATSUSHI (JP)
NAKAMURA YASUO (JP)
SEO SATOSHI (JP)
TOKUDA ATSUSHI (JP)
NAKAMURA YASUO (JP)
International Classes:
C09K11/06; H01L51/30; H01L51/50; (IPC1-7): C09K11/06
Domestic Patent References:
| WO2002094910A1 | 2002-11-28 | |||
| WO2001096454A1 | 2001-12-20 |
Foreign References:
| JP2000208262A | 2000-07-28 | |||
| JPH1131588A | 1999-02-02 | |||
| US20020051896A1 | 2002-05-02 |
Other References:
See also references of EP 1386953A4
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