Display apparatus and contents display method

PURPOSE: A display device and a content display method are provided to enable a user to read a book with high resolution and a wide angle and to supply a scan function. CONSTITUTION: A mobile device positioning information processing unit(220) receives position information or direction information of a mobile device and generates mobile device positioning information. A gesture processing unit(230) receives input information for the mobile device and generates gesture information, which changes an output form of content, by using the input information. A rendering unit(240) generates an image of the content based on the mobile device positioning information and the gesture information. A mobile device positioning unit(210) generates positioning information of a mobile device. [Reference numerals] (210) Mobile device positioning unit; (211) Ultrasonic measurement unit; (212) Infrared measurement unit; (213) Movement recognizing camera unit; (220) Mobile device positioning information processing unit; (221) 3D conversion information calculating unit; (222) Noise attenuation unit; (230) Gesture processing unit; (240) Rendering unit; (241) 3D image conversion unit; (242) Rendering control unit; (243) Rendering calculating unit; (250) Second control unit; (260) Second communication unit; (270) Second storage unit; (280) Display unit;