Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2005-01-12
2008-10-28
Shosho, Callie (Department: 1794)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C313S506000, C257S040000, C257S051000, C546S004000, C546S010000
Reexamination Certificate
active
07442448
ABSTRACT:
The present invention relates to emitting compounds for organic electroluminescent device, particularly to phenyl pyridine-iridium metal complex compounds represented by the following formula (1):wherein R1to R8, A1to A3, and Py are as defined in the specification. In addition, the present invention relates to an organic electroluminescent device comprising the above material which has high luminescence efficiency, enhanced operating life time, and high purity of red chromaticity.
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patent: 2001/0019782 (2001-09-01), Igarashi et al.
patent: 2002/0034656 (2002-03-01), Thompson et al.
patent: 2003/0096138 (2003-05-01), Lecloux et al.
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patent: WO-02/15645 (2002-02-01), None
Carano et al., Inorganic Chemistry, vol. 41, No. 13, 2002, pp. 3396-3409.
Kim Dong-Uk
Kim Ki-Dong
Kim Kwang-Hyun
Kim Sung-Hoon
Kim Tae-Jeong
Birch & Stewart Kolasch & Birch, LLP
LG Display Co. Ltd.
Shosho Callie
Wilson Michael
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