Display device capable of displaying a customized recommendation utterance

A display device capable of displaying a customized recommendation utterance, the display device comprising:

• a user input interface unit configured to receive a first input, associated with a recommendation utterance request, and a second input, associated with recognition of utterance data of a user, in conjunction with a remote control device;
• a display configured to display either information or a recommendation utterance, each of which is associated with the utterance data;
• and
• a processor configured to enable the display to display a keyword associated with either the utterance data or previous utterance data of the user,
• wherein, when a key value corresponding to a button of the remote control device is received, the processor
• generates the recommendation utterance request,
• requests a history of the previous utterance data from a database in response to the recommendation utterance request,
• requests the recommendation utterance from a server on the basis of a history of the utterance data and account information of the user,
• receives the recommendation utterance from the server, and
• controls the output of the received recommendation utterance, including the keyword, on the display.