Data display system

The invention provides a data display system for displaying correlated data of an object. The data display system comprises a shell body, a first communication unit, a second communication unit and a data display device. The shell body is equipped with a first opening; the object is placed in a containing space; the containing space corresponds to the first opening; the first communication unit is arranged in the shell body for sending a signal; when the object leaves away from the containing space, the second communication unit receives the signal; the data display device is coupled to the second communication unit; the data display device displays the correlated data relative to the object according to the communication signal; whereby, the signal sending of the communication unit is blocked selectively.