{HEAD ~ The pixel border} has {TAIL ~ a predetermined width}, and surrounds the passive matrix active area 
{ HEAD ~ The pixel border } has { TAIL ~ a predetermined width } , and surrounds the passive matrix active area
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH