Method for authenticating mobile device and display apparatus using the same, and mobile device authentication system

摘要

A method for authenticating a mobile device and a display apparatus using the same, and a mobile device authentication system are provided. In the method for authenticating the mobile device by the display apparatus, the display apparatus generates a code image in which information on the display apparatus is encrypted if the mobile device is sensed (S71 0), displays the code image on a screen (S720), receives information (S740) on the mobile device which is transmitted using the code image and authenticates the mobile device (S750) using the information on the mobile device. Accordingly, the user controls the display apparatus using the mobile device easily and intuitively.