An electronic device includes a display unit and a touch panel. The display unit includes at least two display areas, wherein each of the display areas has a unique operation frequency. The touch panel is installed in front of the display unit and includes at least two touch areas corresponding to the display areas, each of the touch areas is scanned with a unique scan frequency corresponding to the unique operation frequency of the corresponding display area. Through partition design for the GUI, the electronic device can respectively scan the touch areas, which replace the existing scanning method to scan the whole touch panel, and it is more efficient.