Invention Grant
US07816018B2 Organic electroluminescent materials and organic electroluminescent device using the same 有权
有机电致发光材料和使用其的有机电致发光器件

Organic electroluminescent materials and organic electroluminescent device using the same
Abstract:
An organic electroluminescent material having the formula and 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.
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