This invention covers a display system which includes modular deployable display units, a stand, a power source, a data input device and a display support. Each unit includes a housing, a spool assembly, a flexible electronic display member, an electrical cable and a connecting system for connecting the units to the stand and for physically connecting the units to one another, in an end to end arrangement. The assembly is mounted within the housing and includes a spool having opposite ends, to which the spool is rotatably mounted. The flexible member includes LEDs for displaying a programmable message. The flexible member has an end coupled to the spool and is displaceable between a wound configuration where the member is wound onto the spool and an unwound configuration where the member is unwound from the spool. A free end of the member is coupled to the support for displaying the message.