As described specifically in the above, the benzanthracene derivative having {TAIL ~ hydrogen atom} at the 12 position of {HEAD ~ the present invention} provides a more excellent chromaticity and a longer life 
As described specifically in the above , the benzanthracene derivative having { TAIL ~ hydrogen atom } at the 12 position of { HEAD ~ the present invention } provides a more excellent chromaticity and a longer life
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH