| CPC G06F 11/3055 (2013.01) [G06F 1/1698 (2013.01); G06F 3/0227 (2013.01); G06F 3/0634 (2013.01); G06F 9/44589 (2013.01)] | 11 Claims |

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1. A display device comprising:
a network interface connected to a network;
an external device interface connected to at least one external device;
a wireless communication interface configured to perform pairing with a remote control device; and
a controller configured to obtain a state of the network as a normal state or an abnormal state, count a number of times the state of the network is obtained as the abnormal state, and maintain or change a control mode for controlling the external device, based on the number of times,
wherein the control mode includes an infrared (IR) mode and a network mode, and
wherein the controller is configured to maintain the IR mode or change to the IR mode when the number of times is greater than or equal to a predetermined reference number.
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