Organic electroluminescent materials and organic...

Details Organic electroluminescent materials and organic... Organic electroluminescent materials and organic...

2006-11-21

2010-10-19

Yamnitzky, Marie R. (Department: 1786)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C257SE51044, C548S103000, C548S108000

Reexamination Certificate

active

07816018

ABSTRACT:
An organic electroluminescent material having the formulaand an organic electroluminescent material used for electroluminescent devices is characterized by emission with a high luminance, high illuminant efficiency, low drive voltage, favorable color purity and high thermal steadiness. The hydrogen atom, halogen atom, cyanide group, alkyl group, alkylidene group, cycloalkane group, alkoxy group, amino group, aromatic hydroxy group, alkylaryl group as a substitutive group are used. Not only may it increase the material's glass transition temperature and inhibit the phenomenon of molecular split but also cause this organic electroluminescent device to show a high level of steadiness.

REFERENCES:
patent: 2007/0190359 (2007-08-01), Knowles et al.

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