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