Display device

A display device, comprising:

• a display;
• an external device interface configured to connect to an external device;
• and
• a controller configured to recognize a device corresponding to information received from the external device and set the recognized device as a connection device through the external device interface,
• wherein the controller is configured to:
• when receiving a plurality of pieces of information from the external device, recognize a device corresponding to each of the plurality of pieces of information,
• calculate a recognition accuracy of a device corresponding to each of the plurality of pieces of information,
• wherein the recognition accuracy is a probability or score that the recognized device corresponds to the external device connected through the external device interface, and
• set a recognized device corresponding to one of the plurality of pieces of information as the connection device based on the calculated recognition accuracy,
• wherein the controller is further configured to calculate the recognition accuracy based on a type and number of data that serve as criteria for recognizing the device in each of the plurality of pieces of information.