{HEAD ~ This invention} relates to {TAIL ~ a light emitting device} having a high light extraction efficiency, or in particular to an organic electroluminescence light emitting device having a high light extraction efficiency for the light emitted from an organic EL layer 
relates to
{ HEAD ~ This invention } relates to { TAIL ~ a light emitting device } having a high light extraction efficiency , or in particular to an organic electroluminescence light emitting device having a high light extraction efficiency for the light emitted from an organic EL layer
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