Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2011-08-02
2011-08-02
Tarazano, D. Lawrence (Department: 1786)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S259000, C428S690000, C428S917000, C313S504000, C257S040000, C257SE51033, C257S102000, C257S103000
Reexamination Certificate
active
07989569
ABSTRACT:
Provided are a polyvinyl pyrrole host material emitting highly efficient phosphorescence, a luminescent layer using the material, and an organic electroluminescent display device. The polyvinyl pyrrole host material shows highly efficient luminescence having improved energy transfer, and thus is useful for an organic electroluminescent display device and other various light emitting devices.
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Choi Byoung-Ki
Hyun Sang-Heon
Kim Myeong-Suk
Kim Yu-Jin
Kwon O-Hyun
Bushnell , Esq. Robert E.
Samsung Mobile Display Co., Ltd.
Tarazano D. Lawrence
Yang J. L.
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