Electronic device having increased input sensing sensitivity
An electronic device includes a display panel, an input sensor disposed on the display panel and including first sensing electrodes extending in a first direction and second sensing electrodes extending in a second direction crossing the first direction, and a sensor controller connected to the input sensor. First and second areas are defined in the input sensor based on an input position to which an input by an input device is applied. The input position is located in the first area and not in the second area. The sensor controller applies a first signal to at least one first sensing electrode disposed in the first area and at least one second sensing electrode disposed in the first area and applies a second signal having an opposite phase to a phase of the first signal to the other first and second sensing electrodes disposed in the second area.
1. An electronic device, comprising:
a display panel;
an input sensor disposed on the display panel,
wherein the input sensor operates in a first mode in which an input generated by an input device is sensed and a second mode in which an input generated by a user's touch is sensed,
wherein the input sensor comprises a first area in which an input position is located and a second area in which the input position is not located,
wherein the first and second areas are defined based on the input position to which the input generated by the input device is applied; and
a sensor controller connected to the input sensor,
wherein the input sensor further comprises a first sensor part extending in a first direction in the first area, a second sensor part extending in a second direction crossing the first direction in the first area, and a compensation part disposed in the second area,
wherein the sensor controller applies a first signal to the first sensor part and the second sensor part and applies a second signal having a phase opposite to a phase of the first signal to the compensation part in the first mode,
wherein the sensor controller alternately applies a first uplink signal and a second uplink signal, which have opposite phases to each other, to first sensing electrodes extending in the first direction and second sensing electrodes extending in the second direction in the second mode, and operates in the first mode when an approach of the input device is sensed via the first sensing electrodes and the second sensing electrodes,
wherein the first sensor part comprises at least one first sensing electrode among the first sensing electrodes, and the second sensor part comprises at least one second sensing electrode among the second sensing electrodes.
2. The electronic device of claim 1 , wherein the first sensor part crosses the second sensor part with respect to the input position.
3. The electronic device of claim 1 , wherein the first mode comprises a first period in which the first signal or the second signal is applied to the first sensing electrodes and the second sensing electrodes and a second period in which the input is sensed based on a downlink signal provided from the input device,
wherein the second period proceeds after the first period.
4. The electronic device of claim 1 , wherein the compensation part is one of a plurality of compensation parts, and the compensation parts are spaced apart from each other with at least one of the first sensor part and the second sensor part interposed therebetween.
5. The electronic device of claim 1 , wherein a ratio of a size of the first area in the input sensor to a size of the second area in the input sensor is 5:5, 6:4, or 4:6.
6. The electronic device of claim 1 , wherein, when the input position to which the input generated by the input device is applied moves from a first input position to a second input position different from the first input position, the sensor controller again defines the first area and the second area in the input sensor based on the second input position.
7. An electronic device, comprising:
a display panel;
an input sensor disposed on the display panel,
wherein the input sensor operates in a first mode in which an input generated by an input device is sensed and a second mode in which an input generated by a user's touch is sensed,
wherein the input sensor comprises an active area including a first area in which an input position is located and a second area in which the input position is not located,
wherein the first and second areas are defined based on the input position to which the input generated by the input device is applied; and
a sensor controller connected to the input sensor,
wherein the input sensor further comprises a first sensor part extending in a first direction in the first area, a second sensor part extending in a second direction crossing the first direction in the first area, and a compensation part disposed in the second area,
wherein, in the first mode, the sensor controller applies a first signal to the first sensor part and the second sensor part and applies a second signal having a phase opposite to a phase of the first signal to the compensation part,
wherein, in the second mode, the sensor controller divides the active mode into a first divided area and a second divided area, and simultaneously applies a first uplink signal having a positive phase to the first divided area and a second uplink signal having a negative phase to the second divided area.
8. The electronic device of claim 7 , wherein the first sensor part crosses the second sensor part with respect to the input position.
9. The electronic device of claim 7 , wherein the first mode comprises a first period in which the first signal or the second signal is applied to the first sensing electrodes and the second sensing electrodes and a second period in which the input is sensed based on a downlink signal provided from the input device,
wherein the second period proceeds after the first period.
10. The electronic device of claim 7 , wherein the compensation part is one of a plurality of compensation parts, and the compensation parts are spaced apart from each other with at least one of the first sensor part and the second sensor part interposed therebetween.
11. The electronic device of claim 7 , wherein a ratio of a size of the first area in the input sensor to a size of the second area in the input sensor is 5:5, 6:4, or 4:6.
12. The electronic device of claim 7 , wherein, when the input position to which the input generated by the input device is applied moves from a first input position to a second input position different from the first input position, the sensor controller again defines the first area and the second area in the input sensor based on the second input position.