{HEAD ~ a display unit} adapted to display an image corresponding to input image data on {TAIL ~ a display surface} 
{ HEAD ~ a display unit } adapted to display an image corresponding to input image data on { TAIL ~ a display surface }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL