Organic electroluminescence light-emitting device and production method thereof
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United States of America Patent
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Jul 5, 2016
Grant Date -
Jun 5, 2014
app pub date -
Feb 5, 2014
filing date -
Aug 5, 2011
priority date (Note) -
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Abstract
An object of the present invention is to provide an organic EL light-emitting device in which a permeation and diffusion of moisture from outside are prevented and a stable light-emitting characteristic is able to be maintained for a long period. The present invention relates to an organic EL light-emitting device comprising a sealing layer, a hygroscopic layer and a protective layer, which are aligned on the back of an organic electroluminescence element under a predetermined condition, wherein the sealing layer and the protective layer are constituted from a specific material, whereby it is possible to maintain a stable light-emitting characteristic for a long period together with suppressing the deterioration caused by moisture being permeated from outside.
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