Phenyl pyridine-iridium metal complex compounds for organic...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C365S110000, C365S111000, C514S277000

Reexamination Certificate

active

06960663

ABSTRACT:
The present invention relates to luminescence materials for an organic electroluminescent device (OELD), and particularly to phenyl pyridine-iridium metal complex compounds of formula (1), and preparation method thereof. In addition, the present invention relates to an organic electroluminescent device using the luminescence materials according to the present invention, which can greatly enhance the efficiency of luminescence and increase the operating life time of the device:wherein R1, R2and R3each are the same as defined in the specification.

REFERENCES:
C. Adachi et al., “Electroluminescence in Organic Films with Three-Layer Structure,” Japanese Journal of Applied Physics, vol. 27, No. 2, Feb., 1988, pp. L269-L271.
C.W. Tang and S.A. VanSlyke, “Organic electroluminescent diodes,” Appl. Phys. Lett., vol. 51(12), Sep. 21, 1987, pp. 913-915.
C. Adachi et al., “Organic electroluminescent device having a hole conductor as an emitting layer,” Appl. Phys. Lett., vol. 55(15), Oct. 9, 1989, pp. 1489-1491.
M.A. Baldo et al., “High-efficiency fluorescent organic light-emitting devices using a phosphorescent sensitizer,” Nature, vol. 403, Feb. 17, 2000, pp. 750-753.

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