Touch sensor and display device having the touch sensor

A touch sensor, comprising:

• a substrate comprising an active area and a non-active area;
• a plurality of first electrodes extending in a first direction on the active area, each of the first electrodes comprising:
• a plurality of first sensing cells arranged in the first direction, each of the first sensing cells having an opening;
• and
• a plurality of first connection portions connecting the first sensing cells in the first direction;
• a plurality of second electrodes extending in a second direction crossing the first direction on the active area;
• a plurality of third electrodes on the active area, each of the third electrodes comprising:
• a plurality of electrode portions respectively disposed in the opening of each of the first sensing cells of a corresponding first electrode to be separated from the first and second electrodes;
• and
• a plurality of connection lines connecting the electrode portions in the first direction;
• and
• a sensing circuit comprising a plurality of signal receivers receiving sensing signals from the first or second electrodes,
• wherein:
• the electrode portions and the first sensing cells are disposed on a first layer to be separated from each other;
• and
• the first connection portions and the connection lines are disposed on a second layer to be separated from each other, the second layer being separated from the first layer by at least one insulating layer interposed therebetween.