The method 1, wherein {HEAD ~ the organic electroluminescent display panel} is applied to {TAIL ~ a microdisplay} 
is applied to
The method 1 , wherein { HEAD ~ the organic electroluminescent display panel } is applied to { TAIL ~ a microdisplay }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL