Touch sensor and display device including touch sensor

A touch sensor including a sensing area and a non-sensing area, the touch sensor comprising:

• a sensor base layer;
• a first sensing electrode and a second sensing electrode in the sensing area;
• a first sensing line electrically connected to the first sensing electrode;
• a second sensing line electrically connected to the second sensing electrode;
• a ground line;
• an auxiliary line electrically connected to the ground line;
• and
• a dummy line,
• wherein the dummy line is not electrically connected to the first sensing electrode and the second sensing electrode.

An electronic device comprising:

• a display part including a light emitting element;
• and
• a sensor part on the display part and including a sensing area and a non-sensing area,
• wherein the sensor part comprises:
• a sensor base layer;
• a first sensing electrode and a second sensing electrode in the sensing area;
• a first sensing line electrically connected to the first sensing electrode;
• a second sensing line electrically connected to the second sensing electrode;
• a ground line;
• an auxiliary line electrically connected to the ground line;
• and
• a dummy line, and
• wherein the dummy line is not electrically connected to the first sensing electrode and the second sensing electrode.