The present invention relates to light emitting device materials and to a light emitting device which can convert electrical energy into light and can be used for {TAIL ~ display elements}, flat panel displays, back lights, lighting, interiors, {HEAD ~ signs}, signboards, electronic cameras, light signal generators and the like 
The present invention relates to light emitting device materials and to a light emitting device which can convert electrical energy into light and can be used for { TAIL ~ display elements } , flat panel displays , back lights , lighting , interiors , { HEAD ~ signs } , signboards , electronic cameras , light signal generators and the like
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