CONTENT PROTECTION USING AUTOMATICALLY SELECTABLE DISPLAY SURFACES

摘要

PURPOSE: A content protection method which automatically uses selectable display surfaces is provided to protect the content by automatically identifying the viewable display surface to users who has authentication and displaying the protected content on the identified display surface. CONSTITUTION: Display surfaces(D1-D5) is different in the different locations in the limited area. A display device selectively displays contents on one among different display surfaces. A controller(52) senses the entry of a user within the limited domain and determine the authority of the user for viewing the content. If a second user uses the viewing authority, the controller moves the content from a first display which is viewable by the user to a second display surface which is not available for viewing by the user.