Electronic device

An electronic device, adapted to communicate with a stylus, comprising:

• a display panel, having a display area;
• a touch module, having a touchable area;
• and
• a processor, electrically connected to the display panel and the touch module, wherein the processor is configured to:
• define at least one effective input area in the touchable area,
• switch the effective input area from an original preset touchpad mode to a stylus mode when the touch module detects that the stylus is approaching the effective input area and the processor determines that a location of the stylus is in the effective input area, and
• display a range marking pattern in the effective input area;
• wherein when the stylus is moving away from the effective input area, the touch module disables the stylus mode and the processor switches the effective input area from the stylus mode to the original preset touchpad mode, and does not display the range marking pattern.