Each module having a one to one correspondence with a bit in a data array and comprising {HEAD ~ X columns} and {TAIL ~ Y rows} of pixels 
Each module having a one to one correspondence with a bit in a data array and comprising { HEAD ~ X columns } and { TAIL ~ Y rows } of pixels
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH