Material for organic electroluminescent device and organic elect

Details Material for organic electroluminescent device and organic elect Material for organic electroluminescent device and organic elect

1998-05-22

2000-05-30

Nold, Charles

Stock material or miscellaneous articles

Composite

Of inorganic material

428917, 428691, 313504, H05B 3314

Patent

active

060689404

ABSTRACT:
Described is an organic electroluminescent device material which comprises a coumarin derivative represented by the following formula (1): ##STR1## wherein R.sub.1 to R.sub.4 each independently represents a hydrogen atom, a halogen atom or a substituted or unsubstituted alkyl, alkoxy, thioalkyl, aryloxy, arylthio, carbocyclic aromatic or heterocyclic aromatic group; and an organic electroluminescent device fabricated using the material. According to the present invention, a red-emitting material with high brightness and high luminous efficiency indispensable for full color display can be provided.

REFERENCES:
Nishi et al., Dye and Chemical, 13, 81 (1968).

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