Electronic device including antenna switch
An electronic device includes a display layer in which an active region and a peripheral region proximate to the active region are defined and a controller that is configured to control the display layer. The display layer includes a plurality of pixels, a plurality of antenna patterns that transmit and receive a first signal having a predetermined frequency, and a switch connected to at least one of the plurality of antenna patterns. The controller provides, to the switch, a control signal to control the switch. The switch includes a first line to which a ground voltage is provided, a second line that is floated, a third line to which the first signal is provided, and a fourth line connected to the at least one of the plurality of antenna patterns and electrically connected to the first line, the second line, or the third line based on the control signal.
1. An electronic device, comprising:
a display layer including an active region and a peripheral region proximate to the active region; and
a controller configured to control the display layer,
wherein the display layer includes:
a plurality of pixels disposed in the active region;
a plurality of antenna patterns disposed in the peripheral region and configured to transmit and receive a first signal having a first predetermined frequency; and
a switch disposed in the peripheral region and connected to at least one of the plurality of antenna patterns,
wherein the controller provides, to the switch, a control signal to control the switch, and
wherein the switch includes:
a first line to which a ground voltage is provided;
a second line that is floated;
a third line to which the first signal is provided; and
a fourth line connected to the at least one of the plurality of antenna patterns and electrically connected to the first line, the second line, or the third line based on the control signal.
2. The electronic device of claim 1 , wherein the plurality of antenna patterns are arranged in a first direction.
3. The electronic device of claim 1 , wherein the switch further includes a fifth line to which a second signal having a frequency different from the first predetermined frequency is provided, and
wherein the fourth line is selectively electrically connected to the fifth line.
4. The electronic device of claim 1 , wherein the display layer further includes a first auxiliary electrode disposed between neighboring antenna patterns of the plurality of antenna patterns.
5. The electronic device of claim 4 , wherein the first auxiliary electrode extends in a first direction and is spaced apart from the plurality of antenna patterns in the first direction.
6. The electronic device of claim 4 , wherein the first auxiliary electrode is floated.
7. The electronic device of claim 4 , wherein the display layer further includes a first auxiliary switch disposed in the peripheral region and connected to the first auxiliary electrode, and
wherein the first auxiliary switch includes:
a first auxiliary line to which a ground voltage is provided;
a second auxiliary line that is floated;
a third auxiliary line to which a first auxiliary signal having a frequency different from the first predetermined frequency is provided; and
a fourth auxiliary line connected to the first auxiliary electrode and electrically connected to the first auxiliary line, the second auxiliary line, or the third auxiliary line based on the control signal.
8. The electronic device of claim 1 , wherein the display layer further includes a second auxiliary electrode disposed in the peripheral region and disposed at one end of each of the plurality of antenna patterns.
9. The electronic device of claim 8 , wherein the second auxiliary electrode is spaced apart from the plurality of antenna patterns in a first direction and extends in a second direction that crosses the first direction.
10. The electronic device of claim 8 , wherein the second auxiliary electrode is floated.
11. The electronic device of claim 8 , wherein the display layer further includes a second auxiliary switch disposed in the peripheral region and electrically connected to the second auxiliary electrode, and
wherein the second auxiliary switch includes:
a first auxiliary line to which a ground voltage is provided;
a second auxiliary line that is floated;
a third auxiliary line to which a first auxiliary signal having a frequency different from the first predetermined frequency is provided; and
a fourth auxiliary line electrically connected to the second auxiliary electrode and electrically connected to the first auxiliary line, the second auxiliary line, or the third auxiliary line based on the control signal.
12. The electronic device of claim 1 , wherein each of the plurality of antenna patterns includes a slot antenna.
13. The electronic device of claim 1 , further comprising:
a sensor layer disposed on the display layer,
wherein the sensor layer includes:
a plurality of sensing electrodes disposed in the active region; and
a sub-antenna pattern disposed in the active region and configured to transmit and receive a sub-signal having a second predetermined frequency.
14. The electronic device of claim 13 , wherein the display layer further includes a third auxiliary switch electrically connected to the sub-antenna pattern, and
wherein the third auxiliary switch includes:
a first auxiliary line to which a ground voltage is provided;
a second auxiliary line that is floated;
a third auxiliary line to which the sub-signal is provided; and
a fourth auxiliary line connected to the sub-antenna pattern and electrically connected to the first auxiliary line, the second auxiliary line, or the third auxiliary line based on the control signal.
15. The electronic device of claim 13 , wherein the sub-antenna pattern has a mesh pattern having a plurality of openings defined therein, and
wherein the plurality of pixels are disposed in the plurality of openings.
16. The electronic device of claim 13 , wherein the sub-antenna pattern includes a patch antenna.
17. The electronic device of claim 1 , wherein the plurality of antenna patterns are configured to transmit a first signal and receive a second signal obtained by reflection of the first signal from an object, and
wherein the controller is configured to calculate a distance between the object and the electronic device, based on a time delay and/or a frequency difference of the first signal and the second signal.
18. An electronic device, comprising:
a display layer in which an active region and a peripheral region proximate to the active region are defined;
a sensor layer disposed on the display layer;
a controller configured to generate a control signal; and
a plurality of switches configured to receive the control signal from the controller,
wherein the display layer includes:
a plurality of pixels disposed in the active region; and
a plurality of antenna patterns disposed in the peripheral region and arranged in a first direction, the plurality of antenna patterns that is configured to transmit and receive a first signal having a predetermined frequency,
wherein each of the plurality of switches includes:
a first line to which a ground voltage is provided;
a second line that is floated;
a third line to which the first signal is provided; and
a fourth line electrically connected to the first line, the second line, or the third line based on the control signal, and
wherein the fourth line of at least a first switch of the plurality of switches is electrically connected to at least one of the plurality of antenna patterns.
19. The electronic device of claim 18 , wherein each of the plurality of switches further includes a fifth line to which a second signal having a frequency different from the predetermined frequency is provided, and
wherein the fourth line is selectively electrically connected to the fifth line.
20. The electronic device of claim 18 , wherein the display layer further includes a first auxiliary electrode disposed between neighboring antenna patterns of the plurality of antenna patterns.
21. The electronic device of claim 20 , wherein the first auxiliary electrode is floated.
22. The electronic device of claim 20 , wherein the first auxiliary electrode extends in the first direction and is spaced apart from the plurality of antenna patterns.
23. The electronic device of claim 20 , wherein the first auxiliary electrode is electrically connected to the fourth line of a second switch of the plurality of switches.
24. The electronic device of claim 18 , wherein the display layer further includes a second auxiliary electrode disposed in the peripheral region and disposed at one end of each of the plurality of antenna patterns.
25. The electronic device of claim 24 , wherein the second auxiliary electrode is floated.
26. The electronic device of claim 24 , wherein the second auxiliary electrode is electrically connected to the fourth line of a second switch of the plurality of switches.
27. The electronic device of claim 24 , wherein the second auxiliary electrode extends in a second direction that crosses the first direction and is spaced apart from the plurality of antenna patterns.
28. The electronic device of claim 18 , wherein the sensor layer includes:
a plurality of sensing electrodes disposed in the active region; and
a sub-antenna pattern disposed in the active region and configured to transmit and receive a sub-signal having a predetermined frequency.
29. The electronic device of claim 28 , wherein the sub-antenna pattern is electrically connected to the fourth line of a second switch of the plurality of switches.
30. The electronic device of claim 18 , wherein the plurality of antenna patterns are configured to transmit a frequency-modulated signal and receive the frequency-modulated signal reflected from an object, and
wherein the controller is configured to calculate a distance between the object and the electronic device, based on a time delay and/or a frequency difference between transmission and reception of the frequency-modulated signal.