Touch panel assembly and electronic device

An electronic device comprising:

• a casing having an opening;
• a display module disposed within the casing, the opening exposing a display surface of the display module;
• and
• a touch panel assembly disposed within the casing, the touch panel assembly comprising:
• a touch panel disposed on the display surface, the touch panel comprising:
• a sensing area having a sensing array;
• at least one input element located at a side of the sensing area;
• a bonding area located between the sensing area and the input element;
• and
• a plurality of first connecting traces connected with the sensing array respectively and extending into the bonding area;
• a plurality of second connecting traces connected with the input element respectively and extending into the bonding area;
• and
• a flexible printed circuit board having a bonding portion, wherein the flexible printed circuit board is attached to the bonding area through the bonding portion, and is electrically connected to the first connecting traces and the second connecting traces.