ORGANIC LIGHT EMITTING DEVICE AND MATERIALS FOR USE IN SAME
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United States of America Patent
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Issued Date -
Nov 21, 2013
app pub date -
Feb 11, 2011
filing date -
Feb 11, 2011
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Abandoned
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Abstract
The present invention provides an OLED in which an organic thin film emissive layer comprising a single layer or plural layers between a cathode and an anode, wherein the organic thin film layer comprises at least one organic light emitting layer, wherein at least one light emitting layer comprises at least one host material and at least one phosphorescent emitter material, wherein the host material comprises a substituted or unsubstituted hydrocarbon compound having the chemical structure represented by the following formula:
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