US 2008/0176101 A1 · AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE EMPLOYING THE SAME

Abstract

To provide an organic electroluminescent device showing various luminescent color tones and having high heat resistance, a long lifetime, high emission luminance, and high emission efficiency, in particular, an organic electroluminescent device capable of preventing the attenuation of emission luminance in association with the driving of the device. Provided is an organic electroluminescent device including: an aromatic amine compound having a specific structure; a cathode; an anode; and one or multiple organic thin film layers having at least a light-emitting layer, the one or multiple organic thin film layers being interposed between the cathode and the anode, in which at least one layer of the one or multiple organic thin film layers contains the aromatic amine compound alone or as a component of a mixture.

Claims30

Dependent claims

An aromatic amine derivative represented by the following general formula (I),

where:
Ar1 to Ar6 each independently represent a substituted or unsubstituted aryl group having 6 to 20 nuclear atoms;
L1 to L3 each independently represent a linking group represented by the following general formula (II),
where R1 and R2 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 20 nuclear carbon atoms, and R1 and R2 may be coupled with each other to form a saturated or unsaturated ring;
and
only one of Ar1, Ar2, Ar5, and Ar6 represents a substituted or unsubstituted fused aromatic ring having 10 to 20 nuclear carbon atoms.

3 more elements

Dependencies are inferred from the claim text.

Aromatic amine derivative and organic electroluminescence device employing the same

Life of this patent

Aromatic amine derivative and organic electroluminescence device employing the same

Life of this patent

Abstract

Claims30