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US5837166A Organic electroluminescence device and arylenediamine derivative 失效
有机电致发光器件和芳基二胺衍生物

Organic electroluminescence device and arylenediamine derivative
摘要:
Organic electroluminescence devices having the life of light emission superior to those of conventional electroluminescence devices, and novel arylenediamine derivatives which can remarkably improve the life of light emission of an organic electroluminescence device when the derivatives are used as a component of the device, are disclosed. The organic electroluminescence devices of the present invention at least contain a p-phenylenediamine derivative having 6 or more benzene ring skeletons, or at least a 4,4'-biphenylenediamine derivative having 5 biphenyl groups. The arylenediamine derivatives of the present invention include p-phenylenediamine derivatives having 4 biphenyl groups and 4,4'-biphenylenediamine derivatives having 5 biphenyl groups.
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