A light emitting diode comprising an epitaxial layer structure, {HEAD ~ a first electrode}, and {TAIL ~ a second electrode} 
A light emitting diode comprising an epitaxial layer structure , { HEAD ~ a first electrode } , and { TAIL ~ a second electrode }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL