PROCESS FOR PRODUCTION OF FLEXIBLE SEALING FILM AND ORGANIC ELECTROLUMINESCENT DEVICES MADE BY USING THE FILM

WIPO Patent Application WO/2008/032526

A1

The invention provides an organic electroluminescent (EL) device excellent in tight adhesion and long-term storage stability under high temperature and humidity atmosphere and a process for the production of a flexible sealing film to be used in the device which film bears a gas barrier layer and is excellent in the tight adhesion to a substrate. The organic EL device comprises a substrate, an organic EL member lying on the substrate, and a flexible sealing film provided on the EL member which film is composed of a flexible film and a gas barrier layer lying on the flexible film and is characterized in that the substrate is a glass one and that the flexible sealing film has the gas barrier layer on the organic EL member side and so adheres to the substrate as to cover the periphery of the organic EL member with the proviso that in the inner perimeter zone in the region adhering tightly to the substrate, the flexible sealing film is provided with a gas barrier layer and the bas barrier layer of the film adheres tightly to the substrate, while in the outer perimeter zone in the region adhering tightly to the substrate, the flexible sealing film is not provided with any gas barrier layer and the flexible film adheres directly to the substrate.

KOJIMA SHIGERU (JP)
FURUKAWA KEIICHI (JP)

PCT/JP2007/066021

March 20, 2008

August 17, 2007

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KONICA MINOLTA HOLDINGS INC (JP)
KOJIMA SHIGERU (JP)
FURUKAWA KEIICHI (JP)

H05B33/04; H01L51/50; H05B33/02; H05B33/10

JP2005227450A	2005-08-25
JP2001290137A	2001-10-19
JP2006221898A	2006-08-24
JP2005319678A	2005-11-17
JP2004327402A	2004-11-18

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