{HEAD ~ A light emitting device} is disposed at an edge of one of {TAIL ~ the substrates}, such as the lower substrate 
{ HEAD ~ A light emitting device } is disposed at an edge of one of { TAIL ~ the substrates } , such as the lower substrate
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH