Display device, system including the same, and method thereof

A system comprising:

• a display device;
• at least one user terminal;
• and an audio device communicatively connected to the at least one user terminal,
• wherein the display device is configured to:
• confirm information related to an output of a content through a display of the display device, based on activation of a predetermined function of broadcasting an audio packet including audio data through the wireless communication interface,
• determine whether a predetermined condition related to providing an audio of a predetermined content output through the display is satisfied, based on the information related to the output of the content,
• broadcast a first audio packet including audio data of the predetermined content based on satisfaction of the predetermined condition, and
• perform a predetermined operation related to encryption of the audio data of the predetermined content based on dissatisfaction of the predetermined condition.

An operating method of a display device, comprising:

• confirming information related to an output of a content through a display, based on activation of a predetermined function of broadcasting an audio packet including audio data ;
• determining whether a predetermined condition related to providing an audio of a predetermined content output through the display is satisfied, based on the information related to the output of the content;
• broadcasting a first audio packet including audio data of the predetermined content based on satisfaction of the predetermined condition;
• and
• performing a predetermined operation for encryption of the audio data of the predetermined content based on dissatisfaction of the predetermined condition.