Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2005-01-28
2009-11-10
Tarazano, D. L awrence (Department: 1794)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C528S004000, C313S504000, C313S506000, C252S301160, C257S040000, C257SE51032
Reexamination Certificate
active
07615289
ABSTRACT:
Disclosed herein is an organic electroluminescent polymer having 9,9-di(fluorenyl)-2,7-fluorenyl unit and an electroluminescent device using the same. Specifically, the current invention provides an organic electroluminescent polymer having 9,9-di(fluorenyl)-2,7-fluorenyl unit, which can be used as a blue electroluminescent polymer and host material by introducing the substituted fluorenyl group at the 9-position of fluorene, and an electroluminescent device using the electroluminescent polymer. The electroluminescent polymer is applicable as a host material for highly pure blue, green and red, having high solubility, high heat stability and high quantum efficiency.
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Choi Weon Jung
Jin Jae Kyu
Kim Jong Wook
Kim Yun Hi
Kwon Soon Ki
Darby & Darby P.C.
SK Energy Co., Ltd.
Tarazano D. L awrence
Wilson Michael
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