Touch sensor, window stack structure including the same and image display device including the same

1. A touch sensor, comprising:

a substrate layer having an active region and a peripheral region;

a plurality of sensing channel columns and a plurality of sensing channel rows disposed on the active region of the substrate layer and extending in directions crossing each other;

channel column traces branching from the sensing channel columns and extending on the peripheral region;

channel row traces branching from the sensing channel rows and extending on the peripheral region; and

a trace connector coupling the channel column traces branching from the same sensing channel columns,

wherein the trace connector, the channel row traces and the channel column traces are located at the same layer; and

the trace connector is integrally connected with the channel column traces to cut across the channel row traces.

2. The touch sensor of claim 1 , wherein the channel column traces comprise first channel column traces branching and extending from one end portions of each of the sensing channel columns, and second channel column traces branching and extending from the other end portions of each of the sensing channel columns.

3. The touch sensor of claim 2 , wherein the trace connector couples the first channel column trace and the second channel column trace branching from the same sensing channel column to each other.

4. The touch sensor of claim 3 , wherein the sensing channel column comprises first sensing electrodes arranged in a column direction, and a sensing electrode connector integrally connecting the first sensing electrodes to each other.

5. The touch sensor of claim 4 , wherein the trace connector and the sensing electrode connector are located at the same layer.

6. The touch sensor of claim 2 , the channel row traces comprise first channel row traces branching and extending from one end portions of each of the sensing channel rows, and second channel row traces branching and extending from the other end portions of each of the sensing channel rows.

7. The touch sensor of claim 1 , further comprising first trace bridges electrically connecting cut portions of the channel row traces to each other.

8. The touch sensor of claim 7 , wherein the second channel column trace have a shape cut in a region intersecting the trace connector connected to the adjacent sensing channel column.

9. The touch sensor of claim 8 , further comprising second trace bridges electrically connecting cut portions of the second channel column trace to each other.

10. The touch sensor of claim 9 , wherein the sensing channel row comprises second sensing electrodes arranged in a row direction and bridge electrodes electrically connecting the adjacent second sensing electrodes.

11. The touch sensor of claim 10 , wherein the bridge electrodes, the first trace bridges and the second trace bridges are located at the same layer, and comprise the same conductive material.

12. The touch sensor of claim 9 , wherein an increase and a decrease of length of the first trace bridges and the second trace bridges are alternately repeated along a column direction.

13. The touch sensor of claim 7 , further comprising a guard line extending between the channel row trace and the channel column trace neighboring each other.

14. The touch sensor of claim 13 , wherein the guard line has a shape cut in a region intersecting the trace connector.

15. The touch sensor of claim 14 , further comprising a guard bridge electrically connecting cut portions of the guard line to each other.

16. A window stack structure, comprising:

a window substrate; and

the touch sensor of claim 1 stacked on the window substrate.

17. The window stack structure of claim 16 , further comprising a polarizing layer disposed between the window substrate and the touch sensor or disposed on the touch sensor.

18. An image display device, comprising:

a display panel; and

the touch sensor of claim 1 stacked on the display panel.