Light-emitting module and method for manufacturing the same
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United States of America Patent
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Jul 28, 2015
Grant Date -
Apr 25, 2013
app pub date -
Oct 17, 2012
filing date -
Oct 19, 2011
priority date (Note) -
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Abstract
A light-emitting module with improved light extraction efficiency and reliability is provided. In the light-emitting module, an element substrate with gas barrier properties is used; a light-emitting element is optically connected to one surface side of the element substrate; and a diffuse reflection layer is in contact with the other surface side of the element substrate. The diffuse reflection layer has a diffuse reflectance of greater than or equal to 75% and less than 100%. The light-emitting element includes a layer containing a light-emitting organic compound between a pair of light-transmitting electrodes. The element substrate transmits light emitted from the light-emitting element; the refractive index of the element substrate is different from that of layer containing a light-emitting organic compound by 0.2 or less.
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