{TAIL ~ A method} of controlling {HEAD ~ a display apparatus} using a camera based device and a mobile device, display apparatus, and system applying the same are provided 
{ TAIL ~ A method } of controlling { HEAD ~ a display apparatus } using a camera based device and a mobile device , display apparatus , and system applying the same are provided
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH