Patent ID: 7461121

Claim:
An information display system comprising: a display device, including a display screen, for controlling the contents of display in accordance with a request from at least one of portable terminals held by users; a display server for controlling said display device such that said display screen on which the contents of display are displayed can be shared by a plurality of users and the contents displayed on said display screen can be controlled separately from each other in accordance with requests from the users; and a portable terminal server for forwarding a program for using said information display system to said portable terminals and acting as an intermediary for data exchange between said portable terminals and said display server, wherein said display server divides a display area of said display screen into a plurality of display areas, assigns the users the divided display areas each performing a display including a menu, displays each divided display area with an icon unique to the divided display area on the display screen, and renders, via said portable terminal server, the icon applied to the divided display area on said display screen to be displayed on a display screen of the portable terminal of the user using the display area with the icon; and wherein said display screen of the portable terminal is different from said display screen of the display device.