ORGANOMETALLIC COMPLEX FOR ORGANIC LIGHT-EMITTING LAYER AND ORGANIC LIGHT-EMITTING DIODE USING THE SAME
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United States of America Patent
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Issued Date -
Sep 13, 2007
app pub date -
Mar 7, 2007
filing date -
Mar 7, 2006
priority date (Note) -
Abandoned
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Abstract
An organometallic complex for an organic light-emitting layer and an organic light-emitting diode are provided. A naphthalene derivative as a ligand is introduced to the organometallic complex. The organic light-emitting diode uses the organometallic complex as a phosphorescent host material. The organic light-emitting diode exhibits high current efficiency, high power efficiency and long lifetime when compared to conventional devices using BAlq.
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