An “IC card with display panel but without batteries” includes a contact / contactless communication interface (23), a microprocessor (24), an EEPROM (28), a rectifier / voltage regulator (27), a display driver (25), and a charge-pump (26) disposed therein, and a display panel (21) disposed thereon. The microprocessor (24), receives the external data, and displays them on the display panel (21) for the users to look up the external data. The display panel (21) is the one with double steady-state function having the characteristic that once the data are displayed, no persistent power supply for the display panel (21) is needed, thus the displayed data will be preserved persistently until the next time when data are updated. In this way, the users can exempt using batteries that can avoid being disturbed by the service life of the batteries.