Light emitting body, light emitting element and light emitting display device using same
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United States of America Patent
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Sep 30, 2003
Grant Date -
Oct 31, 2002
app pub date -
Feb 27, 2002
filing date -
Feb 27, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
An organic electroluminescence device is provided which is capable of providing light emission lasting time that can be practically used, that is, of improving its light emission life. A light emitting body used in the organic electroluminescence device is made up of a lower electrode layer, a light emitting layer and a transparent electrode layer being stacked in order on a substrate. As a material for the transparent electrode layer, a substance 'In.sub.2-x Sn.sub.x O.sub.3-y ' being a mixture of an oxide of indium with tin is employed as its chief component. A material having hygroscopicity is formed adjacent to the transparent electrode layer. Light emitting element portion made up of the electrode and light emitting material layer is the electroluminescence device.
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