Title:
METHOD OF PRODUCING LIGHT EMITTING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2005/011332
Kind Code:
A1
Abstract:
A method of producing a light emitting element capable of preventing a time-dependent decrease in the light emission efficiency of a light emitting element having a structure in which an organic compound is held between a pair of electrodes, and prolonging its service life. A method of producing a light emitting element having a plurality of organic-compound layers between a pair of electrodes, characterized by comprising the step of exposing to an atmosphere containing an electron accepting gas at least one layer out of the layers before or after it is formed. The plurality of layers include a light emitting layer, and comprises the light emitting layer and one or at lest two layers selected from among a hole injection layer, a hole transportation layer, a hole inhibition layer, an electron transportation layer and an electron injection layer.
Inventors:
TSUCHIYA KAORU (JP)
IKEDA HISAO (JP)
IKEDA HISAO (JP)
Application Number:
PCT/JP2004/010187
Publication Date:
February 03, 2005
Filing Date:
July 16, 2004
Export Citation:
Assignee:
SEMICONDUCTOR ENERGY LAB (JP)
TSUCHIYA KAORU (JP)
IKEDA HISAO (JP)
TSUCHIYA KAORU (JP)
IKEDA HISAO (JP)
International Classes:
H01J1/62; H01L51/00; H05B33/10; H05B33/14; H01L51/56; (IPC1-7): H05B33/10; H05B33/14
Foreign References:
| JP2001284059A | 2001-10-12 | |||
| JP2003109770A | 2003-04-11 | |||
| JPH10255985A | 1998-09-25 | |||
| JP2000012237A | 2000-01-14 |
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