Electronic device including boundary electrodes connected to boundary dummy patterns through compensation contact holes in a sensor layer

1 . An electronic device comprising:

a sensor layer; and

a sensor driver configured to drive the sensor layer, and selectively operate in a first mode to sense a touch input or in a second mode to sense a pen input,

wherein the sensor layer comprises:

a plurality of first electrodes along a first direction, and extending in a second direction crossing the first direction;

a plurality of second electrodes along the second direction, and extending in the first direction;

a plurality of first auxiliary electrodes along the first direction, extending in the second direction, and overlapping with the plurality of first electrodes;

a plurality of second auxiliary electrodes along the second direction, extending in the first direction, and overlapping with the plurality of second electrodes;

a plurality of first trace lines connected to the plurality of first electrodes;

a plurality of second trace lines connected to the plurality of second electrodes; and

dummy patterns overlapping with the plurality of second electrodes, wherein the plurality of second trace lines comprises:

second-first trace lines connected to second-first electrodes from among the plurality of second electrodes; and

second-second trace lines connected to second-second electrodes from among the plurality of second electrodes,

wherein a first boundary electrode from among the second-first electrodes is adjacent to a second boundary electrode from among the second-second electrodes,

wherein the dummy patterns comprise a first boundary dummy pattern overlapping with the first boundary electrode, and a second boundary dummy pattern overlapping with the second boundary electrode,

wherein the first boundary electrode and the first boundary dummy pattern are connected to each other through first compensation contact holes,

wherein the second boundary electrode and the second boundary dummy pattern are connected to each other through second compensation contact holes, and

wherein a number of the first compensation contact holes and a number of the second compensation contact holes vary depending on positions.

2 . The electronic device of claim 1 , wherein the second-first trace lines are connected to first ends of the second-first electrodes located on a first side, respectively, and

wherein the second-second trace lines are connected to second ends of the second-second electrodes located on a second side opposite to the first side, respectively.

3 . The electronic device of claim 2 , wherein the number of first compensation contact holes increases from a center point of the first boundary electrode toward a second end of the first boundary electrode, and

wherein the number of second compensation contact holes increases from a center point of the second boundary electrode toward a first end of the second boundary electrode.

4 . The electronic device of claim 1 , wherein the first boundary electrode comprises first divided boundary electrodes spaced from each other in the second direction, and the first divided boundary electrodes are commonly connected to a first boundary trace line from among the second trace lines, and

wherein the second boundary electrode comprises second divided boundary electrodes spaced from each other in the second direction, and the second divided boundary electrodes are commonly connected to a second boundary trace line from among the second trace lines.

5 . The electronic device of claim 4 , wherein the first compensation contact holes are connected with one of the first divided boundary electrodes, and

wherein the second compensation contact holes are connected with one of the second divided boundary electrodes.

6 . The electronic device of claim 1 , wherein each of the first and second boundary electrodes comprises a plurality of sensing patterns, and a plurality of sensing bridge patterns electrically connecting the plurality of sensing patterns to each other, and

wherein the sensor layer comprises:

a sensor base layer, the first and second boundary dummy patterns and the sensing bridge patterns being located on the sensor base layer; and

an intermediate insulating layer covering the first and second boundary dummy patterns and the sensing bridge patterns, the sensing patterns being located on the intermediate insulating layer.

7 . The electronic device of claim 6 , wherein the first compensation contact holes penetrate the intermediate insulating layer, and expose the first boundary dummy pattern,

wherein the sensing patterns of the first boundary electrode are connected to the first boundary dummy pattern through the first compensation contact holes,

wherein the second compensation contact holes penetrate the intermediate insulating layer, and expose the second boundary dummy pattern, and

wherein the sensing patterns of the second boundary electrode are connected to the second boundary dummy pattern through the second compensation contact holes.

8 . The electronic device of claim 6 , wherein each of the second auxiliary electrodes comprises a plurality of auxiliary patterns, and a plurality of auxiliary bridge patterns electrically connecting the plurality of auxiliary patterns to each other, and

wherein the plurality of auxiliary patterns comprises:

first auxiliary patterns on the sensor base layer; and

second auxiliary patterns on the intermediate insulating layer.

9 . The electronic device of claim 8 , wherein the first and second auxiliary patterns are connected with each other through a contact hole penetrating the intermediate insulating layer, and

wherein the second auxiliary patterns and the auxiliary bridge patterns are connected with each other through a contact hole penetrating the intermediate insulating layer.

10 . The electronic device of claim 1 , wherein the second mode comprises a pen sensing driving mode, and

wherein, in the pen sensing driving mode, the plurality of first auxiliary electrodes are electrically connected to ground, or electrically connected with each other, and

wherein, in the pen sensing driving mode, the plurality of second auxiliary electrodes are electrically connected to ground, or electrically connected with each other.

11 . The electronic device of claim 1 , wherein the sensor layer further comprises:

a third trace line electrically connected to the plurality of first auxiliary electrodes; and

a fourth trace line electrically connected to the plurality of second auxiliary electrodes, and

wherein the fourth trace line comprises:

a fourth-first trace line commonly connected to second-first auxiliary electrodes adjacent to the second-first electrodes from among the second auxiliary electrodes; and

a fourth-second trace line commonly connected to second-second auxiliary electrodes adjacent to the second-second electrodes from among the second auxiliary electrodes.