a display panel unit including the transparent panel unit provided over {HEAD ~ an upper surface} of the display panel unit and a screen surface operable to display {TAIL ~ at least an image}; and 
a display panel unit including the transparent panel unit provided over { HEAD ~ an upper surface } of the display panel unit and a screen surface operable to display { TAIL ~ at least an image } ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH