Electronic device and interface system including the same

An interface system comprising:

• a display panel including a display layer which displays an image and a sensor layer which includes a plurality of electrodes;
• a display driver configured to drive the display layer;
• a sensor driver configured to drive the sensor layer and to selectively operate in a first mode or a second mode different from the first mode;
• a main driver configured to control operations of the display driver and the sensor driver;
• and
• an object configured to receive a signal from the sensor layer and to output an output signal including position information based on the signal to the main driver, and
• wherein the sensor driver includes:
• a signal generation circuit configured to output a first transmission signal for detecting an input in the first mode to the sensor layer;
• and
• an input detection circuit configured to receive detection signals corresponding to the first transmission signals from the sensor layer in the first mode, and
• wherein the sensor driver simultaneously or continuously outputs the second transmission signals and the third transmission signals to the sensor layer in the second mode, the second transmission signals and the third transmission signals for use by the object to determine a position relative to the sensor layer.