Invention Grant
US09590182B2 Benzofluorene compound, material for luminescent layer using said compound and organic electroluminescent device 有权
苯并芴化合物,使用所述化合物的发光层材料和有机电致发光器件

Benzofluorene compound, material for luminescent layer using said compound and organic electroluminescent device
Abstract:
The present invention is capable of providing a light emitting device with excellent device lifetime while maintaining low driving voltage and good color purity by using a benzofluorene compound which is substituted with a diaryl amino group having a naphthyl and a phenyl or a heteroaryl and which is represented by general formula (1) as a material for luminescent layers of an organic electroluminescent device, for example. (In the formula, Ar is a phenyl, a heteroaryl, etc., R1 and R2 are fluorine or a substituted silyl, etc., n1 and n2 are an integer of 0-5, and R3 is an alkyl, etc.)
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