Monitor for security using smart card and method thereof

The present invention relates to a security monitor device and method for using a smart card, for connecting the monitor to the desired system to display a signal generated from the system, the interface unit for input and output signals from the smart card contains personal identification information; Detector for recognizing whether to insert a smart card; When the smart card is inserted that the detection from the detection unit, reads the personal identification information from the smart card via the interface it is characterized in that it comprises a control unit for performing a display on the monitor (on) or off (off) accordingly. According to the present invention, it is possible for immediate screen protection and energy saving to be made directly on the display a smart card with a personal identification device.