Electronic device and interface device including the same
An interface device includes an electronic device and an input device. The electronic device includes a display layer that includes a display area that includes a foldable area and non-foldable areas, a sensor layer that includes a plurality of detection electrodes, and a sensor driving unit that drives the sensor layer. The plurality of detection electrodes include a first pen sensing electrode and a second pen sensing electrode, and the sensor driving unit transmits to the first pen sensing electrode one of a first sensing signal that has a first driving frequency or a second sensing signal that has a second driving frequency that differs from the first driving frequency according to a position of the input device with respect to the display area.
1. An interface device, comprising:
an electronic device; and
an input device that communicates with the electronic device,
wherein the electronic device includes:
a display layer that includes a display area that includes a foldable area and a plurality of non-foldable areas spaced apart from each other with the foldable area interposed therebetween;
a sensor layer disposed on the display layer and that includes a plurality of detection electrodes; and
a sensor driving unit that drives the sensor layer,
wherein the plurality of detection electrodes include:
a first sensing electrode;
a second sensing electrode that is insulated from and crosses the first sensing electrode;
a first pen sensing electrode that is adjacent to the first sensing electrode and is insulated from and crosses the second sensing electrode; and
a second pen sensing electrode that is adjacent to the second sensing electrode and is insulated from and crosses the first sensing electrode and the first pen sensing electrode, and
wherein the sensor driving unit transmits to the first pen sensing electrode one of a first sensing signal that has a first driving frequency or a second sensing signal that has a second driving frequency that differs from the first driving frequency according to a position of the input device with respect to the display area.
2. The interface device of claim 1 , wherein the sensor driving unit
transmits the first sensing signal to the first pen sensing electrode; and
transmits the second sensing signal to the first pen sensing electrode when the input device overlaps the foldable area.
3. The interface device of claim 1 , wherein the electronic device further includes a plurality of lower members that are disposed under the display layer and that overlap the plurality of non-foldable areas.
4. The interface device of claim 3 , wherein, when viewed in a plan view, the plurality of lower members do not overlap at least a portion of the foldable area.
5. The interface device of claim 3 , wherein the plurality of lower members include a conductive shielding layer.
6. The interface device of claim 3 , wherein the electronic device further includes a first bracket disposed under the plurality of lower members, and
when viewed in a plan view, the first bracket overlaps the foldable area and the plurality of non-foldable areas.
7. The interface device of claim 3 , wherein the electronic device further includes a plurality of second brackets disposed under the plurality of lower members, and
a first separation distance between the plurality of lower members is less than a second separation distance between the plurality of second brackets.
8. The interface device of claim 1 , wherein the first driving frequency is higher than the second driving frequency.
9. The interface device of claim 1 , wherein the first pen sensing electrode includes a plurality of first pen sensing electrodes, and
two first pen sensing electrodes spaced apart from each other are electrically connected to each other.
10. The interface device of claim 9 , wherein the sensor driving unit transmits one of the first sensing signal or the second sensing signal to one of the two first pen sensing electrodes.
11. The interface device of claim 1 , wherein the first pen sensing electrode and the second pen sensing electrode communicate with the input device.
12. The interface device of claim 1 , wherein the input device includes an electromagnetic resonance pen.
13. The interface device of claim 12 , wherein the input device includes an inductor and a capacitor.
14. The interface device of claim 1 , wherein the foldable area is spaced apart from the plurality of non-foldable areas in a first direction, and
the first pen sensing electrode extends in a second direction that crosses the first direction.
15. An electronic device, comprising:
a display layer that includes a first area and a second area adjacent to the first area;
a sensor layer disposed on the display layer and that includes a plurality of detection electrodes; and
a sensor driving unit that drives the sensor layer,
wherein the plurality of detection electrodes include:
a plurality of first sensing electrodes;
a plurality of second sensing electrodes that are insulated from and cross the plurality of first sensing electrodes;
a plurality of first pen sensing electrodes that are adjacent to the plurality of first sensing electrodes, and are insulated from and cross the plurality of second sensing electrodes; and
a plurality of second pen sensing electrodes that are adjacent to the plurality of second sensing electrodes, and are insulated from and cross the plurality of first sensing electrodes and the plurality of first pen sensing electrodes, and
the sensor driving unit that transmits a first sensing signal that has a first driving frequency to a first pen sensing electrode such that a magnetic flux is formed in the first area and transmits a second sensing signal that has a second driving frequency that differs from the first driving frequency to a first pen sensing electrode such that a magnetic flux is formed in the second area.
16. The electronic device of claim 15 , further comprising:
a plurality of lower members disposed under the display layer and that overlap the second area.
17. The electronic device of claim 16 , wherein, when viewed in a plan view, the plurality of lower members do not overlap at least a portion of the first area.
18. The electronic device of claim 16 , wherein the plurality of lower members include a conductive shielding layer.
19. The electronic device of claim 16 , wherein the electronic device further includes a first bracket disposed under the plurality of lower members, and
when viewed in a plan view, the first bracket overlaps the first area and the second area.
20. The electronic device of claim 16 , wherein the electronic device further includes a plurality of second brackets disposed under the plurality of lower members, and
a first separation distance between the plurality of lower members is less than a second separation distance between the plurality of second brackets.
21. The electronic device of claim 15 , wherein the first driving frequency is higher than the second driving frequency.
22. The electronic device of claim 15 , wherein the plurality of first pen sensing electrodes and the plurality of second pen sensing electrodes communicate with an external input device.
23. The electronic device of claim 15 , wherein the first area is spaced apart from the second area in a first direction, and
each of the plurality of first pen sensing electrodes extends in a second direction that intersects the first direction.
24. The electronic device of claim 15 , wherein two first pen sensing electrodes spaced apart from each other are electrically connected to each other.
25. The electronic device of claim 24 , wherein the sensor driving unit transmits the first sensing signal or the second sensing signal to one of the two first pen sensing electrodes.