The light emitting device 2, further comprising {TAIL ~ a first additional electrode} and {HEAD ~ a second additional electrode} arranged on the substrate, 
The light emitting device 2 , further comprising { TAIL ~ a first additional electrode } and { HEAD ~ a second additional electrode } arranged on the substrate ,
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH