A touch sensor electrode comprising: a first electrode layer having a plurality of first strip electrodes arranged being spaced along a first array direction, in which each of the first strip electrodes includes a respective first pad and a respective first line group including a respective plurality of first electrode lines, the first pads are arranged being spaced along the first array direction, and the respective first electrode lines of each of the first line groups have a shape extended toward the respective first pad; a second electrode layer having a plurality of second strip electrodes arranged being spaced along a second array direction orthogonal to the first array direction, in which each of the second strip electrodes includes a respective second pad and a respective second line group including a respective plurality of second electrode lines, the second pads are arranged being spaced along the second array direction, and the respective second electrode lines of each of the second line groups are extended toward the respective second pad; and a transparent dielectric substrate placed between the first electrode layer and the second electrode layer, wherein: as viewed perpendicular to the transparent dielectric substrate, one cell is a region in which one of the first line groups crosses one of the second line groups, and a plurality of cells is arranged along the second array direction in each of the plurality of first strip electrodes and arranged along the first array direction in each of the plurality of second strip electrodes; and the cell placed closest to the first pad in each of the first strip electrodes is a first closest cell; characterised in that the first line group includes, in the first closest cell, a first unconnected line that is not connected to the first pad, whereby the respective first electrode lines at the respective two ends in the first array direction of each of the first strip electrodes are connected to the first pad. a first electrode layer having a plurality of first strip electrodes arranged being spaced along a first array direction, in which each of the first strip electrodes includes a respective first pad and a respective first line group including a respective plurality of first electrode lines, the first pads are arranged being spaced along the first array direction, and the respective first electrode lines of each of the first line groups have a shape extended toward the respective first pad; a second electrode layer having a plurality of second strip electrodes arranged being spaced along a second array direction orthogonal to the first array direction, in which each of the second strip electrodes includes a respective second pad and a respective second line group including a respective plurality of second electrode lines, the second pads are arranged being spaced along the second array direction, and the respective second electrode lines of each of the second line groups are extended toward the respective second pad; and a transparent dielectric substrate placed between the first electrode layer and the second electrode layer, wherein: as viewed perpendicular to the transparent dielectric substrate, one cell is a region in which one of the first line groups crosses one of the second line groups, and a plurality of cells is arranged along the second array direction in each of the plurality of first strip electrodes and arranged along the first array direction in each of the plurality of second strip electrodes; and the cell placed closest to the first pad in each of the first strip electrodes is a first closest cell; as viewed perpendicular to the transparent dielectric substrate, one cell is a region in which one of the first line groups crosses one of the second line groups, and a plurality of cells is arranged along the second array direction in each of the plurality of first strip electrodes and arranged along the first array direction in each of the plurality of second strip electrodes; and the cell placed closest to the first pad in each of the first strip electrodes is a first closest cell; characterised in that the first line group includes, in the first closest cell, a first unconnected line that is not connected to the first pad, whereby the respective first electrode lines at the respective two ends in the first array direction of each of the first strip electrodes are connected to the first pad.