Touch panel, display device, and electronic device
A touch panel includes first touch electrodes arranged in a first direction in a sensing area, second touch electrodes arranged in a second direction in the sensing area, a first touch line connected to a first touch electrode arranged at a corner of the sensing area among the first touch electrodes and including a first overlapping portion overlapping the first touch electrode in a plan view, a second touch line connected to a second touch electrode arranged at the corner of the sensing area among the second touch electrodes and including a second overlapping portion overlapping the second touch electrode in the plan view, and a guard line arranged between the first overlapping portion and the second overlapping portion.
1 . A touch panel comprising:
a plurality of first touch electrodes disposed in a sensing area and arranged in a first direction;
a plurality of second touch electrodes disposed in the sensing area and arranged in a second direction intersecting the first direction;
a first touch line connected to a first touch electrode arranged at a corner of the sensing area among the plurality of first touch electrodes and including a first overlapping portion at least partially overlapping the first touch electrode in a plan view;
a second touch line connected to a second touch electrode arranged at the corner of the sensing area among the plurality of second touch electrodes and including a second overlapping portion at least partially overlapping the second touch electrode in the plan view; and
a guard line arranged between the first overlapping portion and the second overlapping portion.
2 . The touch panel of claim 1 , wherein the guard line includes:
an extension portion extending along a profile of the corner of the sensing area; and
a protrusion portion protruding from the extension portion toward the first touch electrode and the second touch electrode.
3 . The touch panel of claim 2 , wherein the protrusion portion of the guard line is arranged between the first overlapping portion and the second overlapping portion.
4 . The touch panel of claim 1 , wherein
the first touch line is connected to the first touch electrode through a first contact hole in the first overlapping portion, and
the second touch line is connected to the second touch electrode through a second contact hole in the second overlapping portion.
5 . The touch panel of claim 1 , wherein the guard line is spaced apart from each of the first touch electrode and the second touch electrode.
6 . The touch panel of claim 2 , further comprising:
a first dummy pattern electrode arranged between the guard line and the first touch line; and
a second dummy pattern electrode arranged between the guard line and the second touch line.
7 . The touch panel of claim 6 , wherein
the first dummy pattern electrode is arranged between the protrusion portion of the guard line and the first overlapping portion of the first touch line, and
the second dummy pattern electrode is arranged between the protrusion portion of the guard line and the second overlapping portion of the second touch line.
8 . The touch panel of claim 6 , wherein
the first dummy pattern electrode at least partially overlaps the first touch electrode in the plan view, and
the second dummy pattern electrode at least partially overlaps the second touch electrode in the plan view.
9 . The touch panel of claim 6 , further comprising:
a first sub-dummy pattern electrode arranged on the first dummy pattern electrode and at least partially overlapping the first dummy pattern electrode in the plan view; and
a second sub-dummy pattern electrode arranged on the second dummy pattern electrode and at least partially overlapping the second dummy pattern electrode in the plan view.
10 . The touch panel of claim 9 , wherein the first sub-dummy pattern electrode and the second sub-dummy pattern electrode are arranged in a same layer as the first touch electrode and the second touch electrode.
11 . The touch panel of claim 1 , wherein the corner of the sensing area has a non-orthogonal planar shape.
12 . The touch panel of claim 1 , wherein the corner of the sensing area has a curvature in the plan view.
13 . The touch panel of claim 1 , further comprising:
a dummy electrode arranged between the plurality of first touch electrodes and the plurality of second touch electrodes.
14 . The touch panel of claim 13 , wherein the dummy electrode is arranged between the first touch electrode and the second touch electrode at the corner of the sensing area.
15 . The touch panel of claim 1 , further comprising:
a touch island electrode disposed in the sensing area and arranged between the plurality of first touch electrodes adjacent to each other; and
a connection electrode disposed in the sensing area and connecting the touch island electrode and the plurality of first touch electrodes adjacent to the touch island electrode.
16 . A display device comprising:
a display panel including a plurality of pixels disposed in a display area; and
a touch panel arranged on the display panel and including:
a plurality of first touch electrodes disposed in a sensing area corresponding to the display area and arranged in a first direction;
a plurality of second touch electrodes disposed in the sensing area and arranged in a second direction intersecting the first direction;
a first touch line connected to a first touch electrode arranged at a corner of the sensing area among the plurality of first touch electrodes and including a first overlapping portion at least partially overlapping the first touch electrode in a plan view;
a second touch line connected to a second touch electrode arranged at the corner of the sensing area among the plurality of second touch electrodes and including a second overlapping portion at least partially overlapping the second touch electrode in the plan view; and
a guard line arranged between the first overlapping portion and the second overlapping portion.
17 . The display device of claim 16 , wherein the guard line includes:
an extension portion extending along a profile of the corner of the sensing area; and
a protrusion portion protruding from the extension portion toward the first touch electrode and the second touch electrode and arranged between the first overlapping portion and the second overlapping portion.
18 . The display device of claim 17 , wherein the touch panel further includes:
a first dummy pattern electrode arranged between the protrusion portion of the guard line and the first overlapping portion of the first touch line; and
a second dummy pattern electrode arranged between the protrusion portion of the guard line and the second overlapping portion of the second touch line.
19 . The display device of claim 16 , wherein the corner of the sensing area has a non-orthogonal planar shape.
20 . An electronic device comprising:
a display device; and
one or more processors configured to control the display device,
wherein the display device includes:
a display panel including a plurality of pixels arranged in a display area; and
a touch panel arranged on the display panel and including:
a plurality of first touch electrodes disposed in a sensing area corresponding to the display area, and arranged in a first direction;
a plurality of second touch electrodes disposed in the sensing area and arranged in a second direction intersecting the first direction;
a first touch line connected to a first touch electrode arranged at a corner of the sensing area among the plurality of first touch electrodes and including a first overlapping portion at least partially overlapping the first touch electrode in a plan view;
a second touch line connected to a second touch electrode arranged at the corner of the sensing area among the plurality of second touch electrodes and including a second overlapping portion at least partially overlapping the second touch electrode in the plan view; and
a guard line arranged between the first overlapping portion and the second overlapping portion.