Touch sensor and display device including the same
A touch sensor includes first touch cells disposed in a first touch sensing area, the first touch cells each including a first touch pattern and a first dummy pattern, and second touch cells disposed in a second touch sensing area, the second touch cells each including a second touch pattern and a second dummy pattern. An area of a first dummy pattern area in which the first dummy pattern is disposed is greater than an area of a second dummy pattern area in which the second dummy pattern is disposed.
1. A touch sensor, comprising:
first touch cells disposed in a first touch sensing area, the first touch cells each including a first touch pattern and a first dummy pattern that is disposed within a first dummy pattern area; and
second touch cells disposed in a second touch sensing area, the second touch cells each including a second touch pattern and a second dummy pattern that is disposed within a second dummy pattern area,
wherein an area of the first dummy pattern area in the first touch sensing area that includes the first dummy pattern and does not overlap a fingerprint sensor is greater than an area of the second dummy pattern area in the second touch sensing area that includes the second dummy pattern and overlaps the fingerprint sensor, and
wherein the first dummy pattern and the second dummy pattern each include a mesh pattern.
2. The touch sensor of claim 1 , wherein the first dummy pattern includes a first dummy fine conductive line and a second dummy fine conductive line, which intersect each other.
3. The touch sensor of claim 2 , wherein the second dummy pattern includes a third dummy fine conductive line and a fourth dummy fine conductive line, which intersect each other.
4. The touch sensor of claim 3 , wherein a width of the first and second dummy fine conductive lines is greater than a width of the third and fourth dummy fine conductive lines.
5. The touch sensor of claim 3 , wherein a thickness of the first and second dummy fine conductive lines is greater than a thickness of the third and fourth dummy fine conductive lines.
6. The touch sensor of claim 1 , wherein the first touch pattern and the second touch pattern include a mesh pattern.
7. The touch sensor of claim 6 , wherein the first touch pattern includes a first fine conductive line and a second fine conductive line, which intersect each other.
8. The touch sensor of claim 7 , wherein the second touch pattern includes a third fine conductive line and a fourth fine conductive line, which intersect each other.
9. The touch sensor of claim 8 , wherein a resistance of the second touch pattern is greater than a resistance of the first touch pattern.
10. The touch sensor of claim 9 , wherein a width of the first and second fine conductive lines is greater than a width of the third and fourth fine conductive lines.
11. The touch sensor of claim 10 , wherein the width of the third and fourth fine conductive lines is equal to or smaller than 70% of the width of the first and second fine conductive lines.
12. The touch sensor of claim 9 , wherein a thickness of the first and second fine conductive lines is greater than a thickness of the third and fourth fine conductive lines.
13. The touch sensor of claim 12 , wherein the thickness of the third and fourth fine conductive lines is equal to or smaller than 70% of the thickness of the first and second fine conductive lines.
14. The touch sensor of claim 9 , wherein an RC delay of a touch sensing signal corresponding to the second touch sensing area is greater than an RC delay of a touch sensing signal corresponding to the first touch sensing area.
15. The touch sensor of claim 1 , wherein the first touch pattern is disposed within a first touch pattern area, the second touch pattern is disposed within a second touch pattern area, and an area of the first touch pattern area is smaller than an area of the second touch pattern area.
16. The touch sensor of claim 1 , further comprising:
first sensing lines each including a first portion connected to a portion of the first touch cells and extended in a first direction in a non-sensing area; and
second sensing lines each including a second portion connected to a portion of the second touch cells and extended in the first direction in the non-sensing area.
17. The touch sensor of claim 16 , wherein a thickness of the first portion is greater than a thickness of the second portion.
18. The touch sensor of claim 16 , wherein a width of the first portion is greater than a width of the second portion.
19. The touch sensor of claim 16 , wherein a size of the second dummy pattern area in the second touch sensing area is gradually changed in the first direction.
20. The touch sensor of claim 16 , wherein the first touch sensing area includes first sub-touch sensing areas each including the first dummy pattern area,
wherein the second touch sensing area includes second sub-touch sensing areas each including the second dummy pattern area, and
wherein the first sub-touch sensing areas and the second sub-touch sensing areas are alternately disposed in the first direction.