Organic electroluminescent device

Details Organic electroluminescent device Organic electroluminescent device

1996-04-29

1998-07-14

Bonner, Melissa

Compositions

Organic luminescent material containing compositions

428690, 313504, B32B 900

Patent

active

057799377

ABSTRACT:
In an organic electroluminescent device according to the present invention, at least a carrier transporting layer and a luminescent layer using an organic material are laminated between a hole injection electrode and an electron injection electrode, and a chelate compound, indicated by the following chemical formula, having as a ligand a heterocyclic compound is contained in at least one of the carrier transporting layer and the luminescent layer: ##STR1## In the foregoing chemical formula, X and Z are any elements selected from C, S, Se, Te, N and P, Y is any one element selecting from C, N and P, (A1) is an aromatic radical or a heterocyclic radical in which a hydroxyl group is bound to the Y in an ortho position, and (A2) is a radical which is bound to carbon to which the X is bound and carbon to which the Z is bound to constitute an aromatic compound or a heterocyclic compound.

REFERENCES:
patent: 652273 (1900-05-01), Shinko
patent: 5484922 (1996-01-01), Moore et al.
patent: 5486406 (1996-01-01), Shi
Nakamura et al "A Novel Blue Light Emitting Material Prepared from 2-(o-Hydroxphenyl)benzoxazole", Chem. Lett., 1994, 1741-42. *
Chemistry Letters, pp. 1741-1742, 1994. (The Chemical Society of Japan) A Novel Blue Light Emitting Material Prepared from 2-(o-Hydroxyphenyl)benzoxazole.

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