Electronic device and method for driving the same
An electronic device includes: a display panel; a sensor layer on the display panel, the sensor layer having a sensing area corresponding to a display area of the display panel, the sensing area comprising a first area and a second area surrounding the first area; and a sensor driver configured to: drive the sensor layer; receive a sensing signal corresponding to an input device, the sensing signal comprising a first peak value, a second peak value, and a third peak value; and calculate coordinates of the input device at the second area based on the second peak value and the third peak value.
1. An electronic device comprises:
a display panel;
a sensor layer on the display panel, the sensor layer having a sensing area corresponding to a display area of the display panel, the sensing area comprising a first area and a second area surrounding the first area; and
a sensor driver configured to:
drive the sensor layer;
receive a sensing signal corresponding to an input device, the sensing signal comprising a first peak value, a second peak value, and a third peak value; and
calculate coordinates of the input device at the second area based on the second peak value and the third peak value.
2. The electronic device of claim 1 , wherein the sensor driver is further configured to calculate coordinates of the input device at the first area based on an interpolation between two sensors in the second area with signals that have different magnitudes and opposite signs.
3. The electronic device of claim 1 , wherein the sensor driver is further configured to calculate coordinates of the input device at the first area based on a differential of the sensing signal and a determination of a region at which an amplitude is greatest.
4. The electronic device of claim 1 , wherein the sensor driver is further configured to calculate the coordinates of the input device at the second area based on a comparison of the second peak value and the third peak value with a look up table.
5. The electronic device of claim 4 , wherein the sensor driver comprises a memory, and the look up table is stored in the memory.
6. The electronic device of claim 4 , further comprising a main driver configured to drive the sensor driver, the main driver comprising a memory, the look up table being stored in the memory.
7. The electronic device of claim 4 , wherein the sensor driver is further configured to calculate the coordinates of the input device based on a sum of the second peak value and the third peak value.
8. The electronic device of claim 4 , wherein the sensor driver is further configured to calculate the coordinates of the input device based on a weight multiplied by at least one of the second peak value or the third peak value.
9. The electronic device of claim 1 , wherein the sensing signal is generated based on a differential signal that is sensed differently between different channels of the sensor layer.
10. An electronic device comprises:
a sensor layer having a sensing area comprising a first area and a second area surrounding the first area; and
a sensor driver configured to:
receive a sensing signal corresponding to an input device, the sensing signal comprising a first peak value, a second peak value, and a third peak value; and
calculate coordinates of the input device at the second area based on the second peak value and the third peak value.
11. The electronic device of claim 10 , wherein the sensor driver is further configured to calculate coordinates of the input device at the first area based on an interpolation between two sensors in the second area with signals that have different magnitudes and opposite signs.
12. The electronic device of claim 10 , wherein the sensor driver is further configured to calculate coordinates of the input device at the first area based on a differential of the sensing signal and a determination of a region at which an amplitude is greatest.
13. The electronic device of claim 10 , wherein the sensor driver is further configured to calculate the coordinates of the input device at the second area based on a comparison of the second peak value and the third peak value with a look up table.
14. The electronic device of claim 13 , wherein the sensor driver comprises a memory, and the look up table is stored in the memory.
15. The electronic device of claim 13 , further comprising a main driver configured to drive the sensor driver, the main driver comprising a memory, the look up table being stored in the memory.
16. The electronic device of claim 13 , wherein the sensor driver is further configured to calculate the coordinates of the input device based on a sum of the second peak value and the third peak value.
17. The electronic device of claim 13 , wherein the sensor driver is further configured to calculate the coordinates of the input device based on a weight multiplied by at least one of the second peak value or the third peak value.
18. The electronic device of claim 10 , wherein the sensing signal is generated based on a differential signal that is sensed differently between different channels of the sensor layer.
19. An electronic device comprises:
a display panel;
an application processor comprising a memory storing a lookup table;
a sensor layer on the display panel, the sensor layer having a sensing area corresponding to a display area of the display panel, the sensing area comprising a first area and a second area surrounding the first area; and
a sensor driver, the sensor driver being configured to:
drive the sensor layer;
receive a sensing signal corresponding to an input device, the sensing signal comprising a first peak value, a second peak value, and a third peak value; and
calculate coordinates of the input device at the second area based on a comparison of at least one of the second peak value or the third peak value with values stored in the lookup table.
20. The electronic device of claim 19 , wherein the sensor driver is further configured to calculate coordinates of the input device at the first area based on an interpolation between two sensors in the second area with signals that have different magnitudes and opposite signs.
21. The electronic device of claim 19 , wherein the sensor driver is further configured to calculate coordinates of the input device at the first area based on a differential of the sensing signal and a determination of a region at which an amplitude is greatest.
22. The electronic device of claim 19 , wherein the sensor driver is further configured to calculate the coordinates of the input device based on a sum of the second peak value and the third peak value.
23. The electronic device of claim 19 , wherein the sensor driver is further configured to calculate the coordinates of the input device based on a weight multiplied by at least one of the second peak value or the third peak value.
24. The electronic device of claim 19 , wherein the sensing signal is generated based on a differential signal that is sensed differently between different channels of the sensor layer.
25. An electronic device comprises:
a display panel;
a sensor layer on the display panel, the sensor layer having a sensing area corresponding to a display area of the display panel, the sensing area comprising a first area and a second area surrounding the first area, wherein a width of the second area, from an edge of the sensor layer to an edge of the first area, is equal to a pitch between adjacent channels multiplied by a predetermined number of channels divided by 2; and
a sensor driver configured to:
drive the sensor layer;
receive a sensing signal corresponding to an input device, the sensing signal comprising a first peak value, a second peak value, and a third peak value; and
calculate coordinates of the input device at the second area based on the second peak value and the third peak value.
26. The electronic device of claim 25 , wherein the predetermined number of channels is 3.
27. The electronic device of claim 25 , wherein the pitch between adjacent channels is 4 millimeters.
28. The electronic device of claim 25 , wherein the sensor driver is further configured to calculate the coordinates of the input device at the second area based on a comparison of the second peak value and the third peak value with a look up table.
29. The electronic device of claim 28 , wherein the sensor driver is further configured to calculate the coordinates of the input device based on a sum of the second peak value and the third peak value.
30. The electronic device of claim 28 , wherein the sensor driver is further configured to calculate the coordinates of the input device based on a weight multiplied by at least one of the second peak value or the third peak value.