a first electrode and a second electrode provided in order to apply {HEAD ~ electric power} to {TAIL ~ the first light emission layer} 
a first electrode and a second electrode provided in order to apply { HEAD ~ electric power } to { TAIL ~ the first light emission layer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL