m-carbazolylphenyl compounds

Details m-carbazolylphenyl compounds m-carbazolylphenyl compounds

2006-12-12

2011-11-08

Garrett, Dawn L. (Department: 1786)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C548S440000

Reexamination Certificate

active

08053092

ABSTRACT:
An object of the present invention is to provide a host compound in an emission layer, which has a high excited triplet level and completely confines triplet excitons of an phosphorescence-emitting substance. The invention relates to a compound containing an m-carbazolylphenyl group, which is represented by the following general formula (1):wherein A represents a nitrogen atom, an amino group to which a substituted or unsubstituted aromatic hydrocarbon group is bonded, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group; n represents an integer of 2 to 4; R1and R2may be the same or different and represent each an arbitrary substituent; and m and o represent each an integer of 0 to 4.

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