ORGANIC ELECTROLUMINESCENT DEVICE, PROCESS FOR PRODUCING ORGANIC ELECTROLUMINESCENT DEVICE, ILLUMINATOR, AND DISPLAY

Title:

ORGANIC ELECTROLUMINESCENT DEVICE, PROCESS FOR PRODUCING ORGANIC ELECTROLUMINESCENT DEVICE, ILLUMINATOR, AND DISPLAY

Document Type and Number:

WIPO Patent Application WO/2007/148649

Kind Code:

A1

Abstract:

An organic EL device which is free from separation at a bonding interface obtained by laminating and gives a high carrier mobility, a luminance, and a luminescent life. The organic EL device is characterized in that: (A) it comprises an anode, a cathode, and organic layers disposed therebetween, one of the electrodes has, formed thereon, a first organic layer comprising an organic compound having a reactive substituent, and the other electrode has a second organic layer formed thereon, the first and second organic layers having been laminated face to face to produce the device; (B) the film thickness (T) (EM) (nm) of a luminescent layer satisfies a given relationship, the luminescent layer comprises a phosphorescent material, and at least one of the organic layers is formed by laminating; (C) one of the organic layers comprises a phosphorescent compound, the two bonding surfaces of the organic layers to be laminated have a surface roughness (Ra) of 0.05-10 nm, and the ratio of the surface roughness between the two laminating surfaces is 0.5-2.0; and (D) at least one of the organic layers comprises a phosphorescent compound and the laminated surfaces have a peel strength of 10 N/m or higher.

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Inventors:

TANAKA TATSUO (JP)
TAKA HIDEO (JP)
KATAKURA RIE (JP)
KITA HIROSHI (JP)
ITOH HIROTO (JP)

Application Number:

PCT/JP2007/062225

Publication Date:

December 27, 2007

Filing Date:

June 18, 2007

Export Citation:

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Assignee:

KONICA MINOLTA HOLDINGS INC (JP)
TANAKA TATSUO (JP)
TAKA HIDEO (JP)
KATAKURA RIE (JP)
KITA HIROSHI (JP)
ITOH HIROTO (JP)

International Classes:

H01L51/50; H05B33/10

Foreign References:

JP2001052857A	2001-02-23
JP2004342407A	2004-12-02
JP2002203675A	2002-07-19
JP2006302795A	2006-11-02

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