Light-emitting device

Details Light-emitting device Light-emitting device

2006-02-21

2006-02-21

Yamnitzky, Marie (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257S102000, C257S103000

Reexamination Certificate

active

07001676

ABSTRACT:
A light-emitting device comprising a pair of electrodes and one or more organic layers disposed therebetween, one or more organic layers comprising a light-emitting layer, wherein the light-emitting device utilizes a triplet exciton for light emission and comprises at least one compound represented by the following formula (1):wherein each of Ar11, Ar12, Ar13, Ar14and Ar15represents an aryl group or a heteroaryl group; Ar represents an aryl group; R1represents a substituent; and n1represents an integer of 0 or more.

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Tang, C.W. et al., “Organic electroluminescent diodes”, Applied Physics Letters, vol. 51, No. 12, Sep. 21, 1987, pp. 913-915.

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