Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2011-08-02
2011-08-02
Tarazano, D. Lawrence (Department: 1786)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S506000, C257S040000, C257SE51047, C257SE51051, C428S690000, C428S917000, C548S440000
Reexamination Certificate
active
07990046
ABSTRACT:
A material for electroluminescent devices which comprises a compound in which a heterocyclic group having nitrogen is bonded to carbazolyl group and an organic electroluminescent device having at least one organic thin film layer which is sandwiched between the cathode and the anode and contains the above material in at least one layer, are provided. The material can provide organic electroluminescent devices emitting bluish light with a high purity of color. The organic electroluminescence device uses the material.
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Arakane Takashi
Hosokawa Chishio
Ikeda Hidetsugu
Iwakuma Toshihiro
Tomita Seiji
Crouse Brett A
Idemitsu Kosan Co. Ltd.
Steptoe & Johnson LLP
Tarazano D. Lawrence
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