Organic electroluminescent device having a protective covering comprising organic and inorganic layers
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United States of America Patent
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Mar 6, 2001
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N/A
app pub date -
May 8, 1998
filing date -
May 12, 1997
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Abstract
An organic electroluminescent device comprises an electroluminescent unit having an organic layer structure provided between a pair of electrodes and capable of emitting light on application of a voltage thereto. The electroluminescent unit is covered with a protective double layer made of an organic barrier layer and an inorganic barrier layer formed on the unit in this order.
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