Electronic device
An electronic device includes: a sensor layer to be folded or unfolded about a folding axis extending in a first direction; and a sensor driver to drive the sensor layer. The sensor layer includes: first electrodes along the first direction; second electrodes along a second direction crossing the first direction; a first electrode group including first auxiliary electrodes along the second direction; a first auxiliary trace line electrically connected with the first auxiliary electrodes; a first signal transmission line electrically connected with a first-first auxiliary electrode among the first auxiliary electrodes; and a second signal transmission line electrically connected with a first-second auxiliary electrode spaced from the first-first auxiliary electrode in the second direction among the first auxiliary electrodes. The sensor driver is to sense a folding of the sensor layer by sensing an induced current induced by the first-first auxiliary electrode and the first-second auxiliary electrode.
1 . An electronic device comprising:
a sensor layer configured to be folded or unfolded about a folding axis extending in a first direction; and
a sensor driver configured to drive the sensor layer,
wherein the sensor layer comprises:
a plurality of first electrodes along the first direction;
a plurality of second electrodes along a second direction crossing the first direction;
a first electrode group comprising a plurality of first auxiliary electrodes along the second direction;
a first auxiliary trace line electrically connected with the plurality of first auxiliary electrodes;
a first signal transmission line electrically connected with a first-first auxiliary electrode among the plurality of first auxiliary electrodes; and
a second signal transmission line electrically connected with a first-second auxiliary electrode spaced from the first-first auxiliary electrode in the second direction among the plurality of first auxiliary electrodes, and
wherein the sensor driver is configured to sense a folding of the sensor layer by sensing an induced current induced by the first-first auxiliary electrode and the first-second auxiliary electrode.
2 . The electronic device of claim 1 , wherein the sensor driver is configured to sense the folding based on at least the induced current received from at least some of the plurality of second electrodes.
3 . The electronic device of claim 1 , wherein the sensor layer comprises a sensing area, and a peripheral area adjacent to the sensing area,
wherein the plurality of first electrodes, the plurality of second electrodes, and the first electrode group are located in the sensing area,
wherein the first auxiliary trace line and the first signal transmission line are spaced from each other with the sensing area therebetween, and
wherein the first auxiliary trace line and the second signal transmission line are spaced from each other with the sensing area therebetween.
4 . The electronic device of claim 1 , wherein the sensor driver is configured to selectively operates in a first mode to sense a touch input, a second mode to sense a pen input, and a third mode to sense the folding of the sensor layer, and
wherein in the third mode, the sensor driver is configured to provide a first signal to the first signal transmission line, and a second signal to the second signal transmission line, the second signal being an inverse signal of the first signal.
5 . The electronic device of claim 4 , wherein an operation period of the third mode is greater than or equal to an operation period of the first mode.
6 . The electronic device of claim 1 , wherein the sensor layer further comprises:
a third signal transmission line electrically connected with a first-third auxiliary electrode among the plurality of first auxiliary electrodes; and
a fourth signal transmission line electrically connected with a first-fourth auxiliary electrode spaced from the first-third auxiliary electrode in the second direction among the plurality of first auxiliary electrodes, and
wherein the first-third auxiliary electrode and the first-fourth auxiliary electrode are closer to the folding axis than the first-first auxiliary electrode and the first-second auxiliary electrode.
7 . The electronic device of claim 6 , wherein the sensor driver is configured to sense the folding of the sensor layer in a mode comprising a first section mode and a second section mode, and
wherein in the first section mode, the sensor driver is configured to provide a first signal and a second signal to the first-first auxiliary electrode and the first-second auxiliary electrode, respectively, the second signal being an inverse signal of the first signal, and
wherein in the second section mode, the sensor driver is configured to provide the first signal and the second signal to the first-third auxiliary electrode and the first-fourth auxiliary electrode, respectively.
8 . The electronic device of claim 1 , wherein the sensor layer further comprises:
a second electrode group comprising a plurality of second auxiliary electrodes along the second direction; and
a second auxiliary trace line electrically connected with the plurality of second auxiliary electrodes, and
wherein the first electrode group and the second electrode group are spaced from each other with the folding axis therebetween.
9 . The electronic device of claim 1 , wherein the folding axis comprises a first folding axis extending in the first direction, and a second folding axis extending in the first direction and spaced from the first folding axis in the second direction,
wherein the sensor layer is configured to be folded or unfolded about the first folding axis and the second folding axis,
wherein the sensor layer comprises a first non-folding area, a first folding area, a second non-folding area, a second folding area, and a third non-folding area sequentially along the second direction, and
wherein the first folding area is configured to be folded or unfolded about the first folding axis, and the second folding area is configured to be folded or unfolded about the second folding axis.
10 . The electronic device of claim 9 , wherein the first-first auxiliary electrode and the first-second auxiliary electrode are located in the second non-folding area.
11 . The electronic device of claim 9 , wherein the sensor layer further comprises:
a third signal transmission line electrically connected with a first-third auxiliary electrode among the plurality of first auxiliary electrodes; and
a fourth signal transmission line electrically connected with a first-fourth auxiliary electrode spaced from the first-third auxiliary electrode in the second direction among the plurality of first auxiliary electrodes, and
wherein the first-first auxiliary electrode and the first-second auxiliary electrode are located in the first non-folding area, and the first-third auxiliary electrode and the first-fourth auxiliary electrode are located in the second non-folding area or the third non-folding area.
12 . The electronic device of claim 1 , wherein the sensor layer further comprises a plurality of charging electrode groups along the first direction, and the plurality of charging electrode groups overlap with the plurality of first electrodes.
13 . An electronic device comprising:
a sensor layer configured to be folded or unfolded about a folding axis extending in a first direction; and
a sensor driver configured to drive the sensor layer by selectively operating in a first mode to sense a touch input, a second mode to sense a pen input, or a third mode to sense a folding of the sensor layer,
wherein the sensor layer comprises:
a plurality of first electrodes along the first direction;
a plurality of second electrodes along a second direction crossing the first direction;
a first electrode group comprising a plurality of first auxiliary electrodes along the second direction;
a first auxiliary trace line electrically connected with the plurality of first auxiliary electrodes;
a first signal transmission line electrically connected with a first-first auxiliary electrode among the plurality of first auxiliary electrodes; and
a second signal transmission line electrically connected with a first-second auxiliary electrode spaced from the first-first auxiliary electrode in the second direction among the plurality of first auxiliary electrodes, and
wherein in the third mode, the sensor driver is configured to provide a first signal to the first signal transmission line, and a second signal to the second signal transmission line, the second signal being an inverse signal of the first signal.
14 . The electronic device of claim 13 , wherein an operation period of the third mode is greater than or equal to an operation period of the first mode.
15 . The electronic device of claim 13 , wherein in the third mode, the sensor driver is configured to sense the folding of the sensor layer by sensing an induced current induced in the plurality of second electrodes by the first-first auxiliary electrode and the first-second auxiliary electrode.
16 . The electronic device of claim 13 , wherein the sensor layer further comprises:
a third signal transmission line electrically connected with a first-third auxiliary electrode among the plurality of first auxiliary electrodes; and
a fourth signal transmission line electrically connected with a first-fourth auxiliary electrode spaced from the first-third auxiliary electrode in the second direction among the plurality of first auxiliary electrodes, and
wherein the first-third auxiliary electrode and the first-fourth auxiliary electrode are closer to the folding axis than the first-first auxiliary electrode and the first-second auxiliary electrode.
17 . The electronic device of claim 13 , wherein the sensor layer further comprises a plurality of charging electrode groups along the first direction, and the plurality of charging electrode groups overlap with the plurality of first electrodes.
18 . An electronic device comprising:
a sensor layer configured to be folded or unfolded about a folding axis extending in a first direction; and
a sensor driver configured to drive the sensor layer by selectively operating in a first mode to sense a touch input, a second mode to sense a pen input, or a third mode to sense a folding of the sensor layer,
wherein the sensor layer comprises:
a plurality of first electrodes;
a plurality of second electrodes crossing the plurality of first electrodes; and
a plurality of auxiliary electrodes extending in the first direction, and located along a second direction crossing the first direction, and
wherein in the third mode, the sensor driver is configured to sense the folding of the sensor layer by sensing an induced current induced by at least two auxiliary electrodes among the plurality of auxiliary electrodes.
19 . The electronic device of claim 18 , wherein the sensor layer further comprises:
a first signal transmission line electrically connected with a first-first auxiliary electrode among the plurality of auxiliary electrodes; and
a second signal transmission line electrically connected with a first-second auxiliary electrode spaced from the first-first auxiliary electrode in the second direction among the plurality of auxiliary electrodes, and
wherein in the third mode, the sensor driver is configured to provide a first signal to the first signal transmission line, and a second signal to the second signal transmission line, the second signal being an inverse signal of the first signal.
20 . The electronic device of claim 18 , wherein the plurality of first electrodes are located along the first direction, and the plurality of second electrodes are located along the second direction, and
wherein the sensor driver is configured to sense the folding based on at least the induced current received from at least some of the plurality of second electrodes.