ELECTROLUMINESCENT MATERIALS COMPRISING FLUORENE DERIVATIVES
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United States of America Patent
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Issued Date -
Feb 14, 2013
app pub date -
Sep 29, 2010
filing date -
Sep 30, 2009
priority date (Note) -
Abandoned
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Abstract
OLED compounds of the general structure: B—S-A-S—B in which rod-like nuclei A includes a condensed aromatic ring structure in turn having fluorene ring structures condensed with at least one additional fluorene ring structures wherein the fluorene ring systems provided by the condensed aromatic structure are substituted at the 9-position, and in which the 9-positions of the fluorenes are not susceptible to oxidation.
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