Head mounted display and method for controlling the same

A head mounted display (HMD), comprising:

• a camera unit configured to capture an image of a surrounding area of the HMD;
• a display unit configured to display augmented reality information associated with the captured image;
• a communication unit configured to transmit and receive data to and from an external device;
• a sensor unit configured to sense a position of the HMD and to deliver the sensed result to a processor;
• and
• the processor configured to control the camera unit, the display unit, the communication unit, and the sensor unit,
• wherein the processor:
• requests ticket information to the external device,
• receives a response including the ticket information according to the request from the external device,
• acquires the augmented reality information associated with the ticket information,
• detects an object related to the external device in the captured image, and
• displays the augmented reality information associated with the ticket information on a surrounding area of the detected object.