Touch sensor and image display device including the same

A touch sensor, comprising:

• a substrate layer;
• a plurality of sensing electrodes on the substrate layer;
• and
• a dummy line between the sensing electrodes, the dummy line extending along a boundary of the sensing electrode, wherein the dummy line is a conductive pattern that is electrically and physically separated from the sensing electrodes,
• wherein the sensing electrodes include first sensing electrodes arranged along a first direction that is parallel to a top surface of the substrate layer, and second sensing electrodes arranged along a second direction that is parallel to the top surface of the substrate layer to cross the first direction;
• the first sensing electrodes have an island pattern shape, and the second sensing electrodes are connected to each other by connecting portions extending in the second direction;
• the sensing electrodes include electrode lines therein, the electrode lines each extending in a wavy shape or a saw-tooth shape therein, each electrode line comprising inflected portions and extension portions extended between neighboring inflected portions, wherein the extension portions have no inflection, and connecting patterns therein which connect the electrode lines neighboring each other;
• the connecting patterns comprise first connecting patterns combined with the inflected portions of the electrode lines and second connecting patterns combined with the extension portions of the electrode lines;
• the boundary of each of the first and second sensing electrodes has a wavy shape or a saw-tooth shape;
• the dummy line has a wave form which is the same as that of the boundary of the sensing electrode;
• the sensing electrodes and the dummy line are disposed at the same level;
• and
• the dummy line extends only between the sensing electrodes neighboring each other.