| 摘要 |
<p>A method of operating a display device according to an embodiment of the present invention comprises the steps of: connecting to a remote control device for controlling the display device by a first communication method; checking if a connection identifier same to a connection identifier of the display device is set on the connected remote control device; and periodically checking the usable state of the connected remote control device upon checking result through the first communication method.</p> |
