Touch display device and touchscreen panel
A touch display device and a touchscreen panel. Even in the case in which touch electrodes have different sizes or shapes or a located in different positions, a difference in capacitance is not formed among the touch electrodes. High touch sensitivity can be obtained. The touch display device comprises a plurality of touch electrodes, wherein a first touch electrode of the plurality of touch electrodes occupies a first area and comprises first mesh-shaped electrode metal. The touch display device comprises first dummy metal in a same layer as the first mesh-shaped electrode metal and in the first area occupied by the first touch electrode, the first dummy metal being electrically disconnected from the first mesh-shaped electrode metal.
1. A touch display device, comprising:
pixels in an active area in which images are displayed; and
touch sensors over the pixels, the touch sensors in a touch electrode area overlapping the active area,
wherein a first touch sensor of the touch sensors overlaps a corner region of the active area,
wherein the first touch sensor extends to an outside of the active area such that the first touch sensor has an extended edge.
2. The touch display device according to claim 1 , wherein the extended edge has a round shape.
3. The touch display device according to claim 2 , wherein the round shape corresponds to a rounded corner of the touch electrode area.
4. The touch display device according to claim 1 , wherein the extended edge of the first touch sensor overlaps a non-active area.
5. The touch display device according to claim 4 , wherein an area of the touch electrode area is greater than an area of the active area.
6. The touch display device according to claim 4 , wherein the first touch sensor has at least one open area located in the non-active area.
7. The touch display device according to claim 1 , wherein the touch sensors comprise mesh-type metals.
8. The touch display device according to claim 7 , wherein each of the touch sensors comprises:
an electrode metal;
open areas adjacent to the electrode metal; and
a dummy metal electrically disconnected from the electrode metal.
9. The touch display device according to claim 8 , wherein the dummy metal is electrically floated when an electrical signal is applied to the touch sensors.
10. The touch display device according to claim 8 , wherein the electrode metal and the dummy metal are located in a same layer.
11. The touch display device according to claim 8 , wherein the electrode metal comprises a plurality of first sub-electrode metals and a plurality of second sub-electrode metals intersecting the plurality of first sub-electrode metals, and
wherein the plurality of first sub-electrode metals and the plurality of second sub-electrode metals extend in different directions from a direction in which opposing top and bottom ends of the first touch sensor extend.
12. The touch display device according to claim 8 , wherein the electrode metal comprises a plurality of first sub-electrode metals and a plurality of second sub-electrode metals intersecting the plurality of first sub-electrode metals, and
where at least two or more of the plurality of first sub-electrode metals and at least two or more of the plurality of second sub-electrode metals surround the dummy metal in a plan view.
13. The touch display device according to claim 8 , wherein each of the pixels comprises subpixels, and
wherein each of the open areas corresponds to a light-emitting portion of one or more of the subpixels.
14. The touch display device of claim 1 , wherein a shape of a second touch sensor adjacent to the first touch sensor is different from a shape of the first touch sensor.
15. The touch display device of claim 14 , wherein the first touch sensor and the second touch sensor are mutual-capacitance touch sensors.
16. The touch display device of claim 14 , wherein the first touch sensor and the second touch sensor are self-capacitance touch sensors.
17. The touch display device according to claim 1 , further comprising:
an encapsulation layer between the pixels and the touch sensors.
18. The touch display device according to claim 17 , further comprising:
color filters on the encapsulation layer.
19. The touch display device of claim 18 , wherein each of the touch sensors includes an open area overlapping at least one of the color filters.
20. The touch display device of claim 17 , further comprising:
a cathode layer located between the pixels and the encapsulation layer,
wherein at least one of the encapsulation layer and the cathode layer has a greater size than the touch electrode area.