Organic electroluminescent device
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United States of America Patent
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Jan 30, 1996
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N/A
app pub date -
Sep 20, 1994
filing date -
Sep 22, 1993
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Abstract
An organic electroluminescent device comprises an organic emitting layer and a hole transport layer laminated with each other and arranged between a cathode and an anode, in characterized in that the hole transport layer made of the triphenylbenzene derivative. This hole transport layer has the high heart-resistant property and high conductivity to improve the durability and thus this device emits light at a high luminance and a high efficiency upon application of a low voltage.
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