BI-DIRECTIONAL DISPLAY SYSTEM

PROBLEM TO BE SOLVED: To make it possible to judge whether or not a specific person has been informed of the offered information by checking it with an information management part that the information displayed on a display device is seen. SOLUTION: This bi-directional display system is configured of an information management part 1 comprising personal computers, etc., and display device 2. The information management part 1 is located in a management house, etc., and is inputted with display data such as various information, etc., and supplies them to the display device 20 by wireless or wire. The display device 20 receives the display data, and displays them on each display part such as Pa-Ph, etc. provided on a display panel part 21. A confirmation input means to check that the information displayed on each display part Pa-Ph have been seen, confirmation keys 22a-22h and a transfer key 23 are provided. After the information has been confirmed, the transfer key 23 is to be pressed for transmitting the confirmed information to the information management part 1. Thus, by the confirmed information transmitted from the display device 20, it is possible at the information management part 1 to understand that a specific person has confirmed the information.