Touch sensor panel

1. A touch sensor panel comprising:

a plurality of first electrodes; and

a plurality of second electrodes above the plurality of first electrodes, each second electrode having a longest axis perpendicular to a longest axis of the plurality of first electrodes, wherein each second electrode comprises a sensing layer having one or more openings therein and a plurality of protrusions therein or therefrom, each of the one or more openings has a dimension greater than at least one dimension of each of the protrusions, and a distance between adjacent sensing layers is greater than a length of one of the protrusions plus a width of a longitudinal line in the sensing layer.

2. The touch sensor panel of claim 1 ,

wherein the plurality of first electrodes are arranged in parallel.

3. The touch sensor panel of claim 1 ,

wherein each of the plurality of second electrodes has a bar pattern arranged to cross at least one of the first electrodes.

4. The touch sensor panel of claim 3 ,

wherein each of the second electrodes has a plurality of openings and a bridge region between adjacent ones of the plurality of openings that is positioned above at least one of the first electrodes.

5. The touch sensor panel of claim 3 ,

wherein each of the second electrodes has a plurality of openings and a bridge region between adjacent ones of the plurality of openings that is positioned between adjacent ones of the plurality of first electrodes.

6. The touch sensor panel of claim 3 ,

wherein the one or more openings comprises an empty space in a central portion of the second electrode, and has a crenellated or concavo-convex pattern.

7. The touch sensor panel of claim 1 ,

wherein each of the plurality of first electrodes has a bar pattern.

8. The touch sensor panel of claim 1 ,

wherein each of the second electrodes has one or more bar patterns having a given length that protrude from the second electrode, and each of one or more bar patterns is adjacent to a central portion of a corresponding one of the one or more openings.

9. The touch sensor panel of claim 8 , wherein the bar patterns have a length that is about equal to the width of the openings.

10. The touch sensor panel of claim 8 , wherein a width of each of the bar patterns is equal to a width of the longitudinal line in the sensing layer of the second electrode.

11. The touch sensor panel according to claim 1 ,

wherein each of the second electrodes has one or more bar patterns having a given length that protrude from lateral portions the second electrode adjacent to the one or more openings.

12. The touch sensor panel of claim 11 , wherein the given length is equal to a width of the one or more openings.

13. The touch sensor panel according to claim 1 ,

wherein each of the second electrodes has a plurality of rectangular patterns, each having an opening in the central portion thereof and arranged at regular intervals.

14. The touch sensor panel of claim 13 , wherein a bridge portion of each of the second electrodes that is between adjacent rectangular patterns has a width greater than that of the sensing layer surrounding the rectangular patterns.

15. The touch sensor panel of claim 13 , wherein each opening of each of the plurality of rectangular patterns is connected to an opening of an adjacent rectangular pattern.

16. The touch sensor panel of claim 1 ,

wherein each of the first electrodes is a transparent electrode or a nontransparent electrode.

17. The touch sensor panel of claim 1 , wherein each of the second electrodes is a transparent electrode or a nontransparent electrode.

18. The touch sensor panel of claim 1 , further comprising an insulating layer between each of the first electrodes and the second electrodes.

19. The touch sensor panel of claim 1 , wherein a distance between adjacent protrusions is about equal to a length of the openings.

20. The touch sensor panel of claim 1 , wherein a distance between adjacent protrusions from adjacent sensing layers is less than half of a length of the openings.