Display apparatus and contents display method

A contents display system, comprising:

• a display apparatus which includes:
• a mobile device tracing information processing unit for receiving movement information of a mobile device and generating tracing information of the mobile device based on the received movement information of the mobile device;
• a gesture processing unit for receiving input information with respect to the mobile device and changing an output format of contents by using the received input information;
• a rendering unit for generating predetermined contents image based on the tracing information of the mobile device and the gesture information;
• and
• a display unit for displaying the generated contents image;
• and
• the mobile device which communicates with the display apparatus.

A contents display method, comprising:

• receiving position information or orientation information of a mobile device;
• generating tracing information of the mobile device based on the received position information or orientation information of the mobile device;
• receiving input information with respect to the mobile device;
• generating gesture information to change an output format of contents by using the received input information;
• generating a predetermined contents image based on the tracing information of the mobile device and the gesture information;
• and
• displaying the generated contents image.