Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2007-12-03
2011-12-06
Chriss, Jennifer (Department: 1786)
Stock material or miscellaneous articles
Composite
Of inorganic material
C313S504000, C313S505000, C313S506000, C546S042000
Reexamination Certificate
active
08071227
ABSTRACT:
Disclosed are new compounds and an organic light emitting diode using the same. The organic light emitting diode using the new compound according to the present invention exhibits excellent characteristics in terms of actuating voltage, light efficiency, and lifespan.
REFERENCES:
patent: 6998487 (2006-02-01), Kim et al.
patent: 7138483 (2006-11-01), Wang et al.
patent: 2002/0107405 (2002-08-01), Lin et al.
patent: 1 671 998 (2006-06-01), None
Jiang et. al., Diarylmethylene-bridged 4,4′-(bis(9-carbazoyl))biphenyl :morphological stable host material for highly efficient electrophosphorescene, 2009, J. of Materials Chemistry, vol. 19, pp. 7661-7665.
Cho Wook-Dong
Jeon Byung-Sun
Jeon Sang-Young
Kim Jeung-Gon
Kim Yeon-Hwan
Chriss Jennifer
Clark Gregory
LG Chem Ltd.
McKenna Long & Aldridge LLP
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