Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2007-06-18
2010-12-28
Tarazano, D. Lawrence (Department: 1786)
Stock material or miscellaneous articles
Composite
Of inorganic material
C313S504000, C428S447000
Reexamination Certificate
active
07858209
ABSTRACT:
Provided herein are fluorene-based compounds including a fluorene or a spirofluorene structure at both terminals and a spacer including one or more atoms between the both terminals. The invention further provides an organo-electroluminescent device having an organic layer in which the fluorene-based compound is introduced. The fluorene-based compound can be readily manufactured using dry and wet processes, and the organo-electroluminescent device using the same has excellent properties in color purity, internal and external efficiency, and thermal, optical and electric stability.
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Byun Young-hun
Kwon O-hyun
Lyu Yi-yeol
Yang Che-un
Cantor & Colburn LLP
Clark Gregory
Samsung Electronics Co,. Ltd.
Tarazano D. Lawrence
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