Concurrent input sensing and display updating

1. A processing system for a display device integrated with a capacitive sensing device, the processing system comprising:

a driver module comprising driver circuitry, the driver module coupled to a sub-pixel with a first source line and a first common electrode, wherein the first common electrode is directly coupled to the sub-pixel, and wherein the driver module is configured to:

update the sub-pixel by driving the first source line with a first voltage; and

drive, while the first voltage is driven onto the sub-pixel, the first common electrode for capacitive sensing by modulating the first common electrode between a second voltage and a third voltage, wherein the first voltage driven on the first source line is selected based on voltage transitions used to modulate the first common electrode;

a receiver module coupled to a plurality of receiver electrodes configured to receive resulting signals from the receiver electrodes while the first common electrode is modulated between the second voltage and the third voltage; and

a determination module configured to determine positional information based on the resulting signals.

2. The processing system of claim 1 , wherein updating the sub-pixel comprises driving a capacitive element associated with the sub-pixel to a predetermined level to achieve a first brightness level of the sub-pixel.

3. The processing system of claim 1 , wherein updating the sub-pixel comprises driving a light-emitting diode associated with the sub-pixel to a predetermined level to achieve a first brightness level of the sub-pixel.

4. The processing system of claim 1 , wherein the driver module is configured to simultaneously update the sub-pixel, drive the first common electrode for capacitive sensing, and drive a second common electrode for capacitive sensing by modulating the second common electrode between the second voltage and the third voltage.

5. The processing system of claim 1 , wherein the driver module is configured to simultaneously update the sub-pixel and drive the first common electrode for capacitive sensing by modulating the first common electrode between the second voltage and the third voltage and between the second voltage and a fourth voltage.

6. The processing system of claim 1 , wherein the driver module is configured to:

update the sub-pixel at a first update frequency;

detect interference associated with the capacitive sensing; and

transition from the first update frequency to a second update frequency.

7. The processing system of claim 1 , wherein modulating the first common electrode between the second voltage and the third voltage comprises driving the first common electrode with a substantially square waveform.

8. A display device integrated with a capacitive sensing device comprising:

a sub-pixel;

a first source line coupled to the sub-pixel;

a first common electrode directly coupled to the sub-pixel;

a plurality of receiver electrodes; and

a processing system coupled to the first source line, first common electrode, and plurality of receiver electrodes, the processing system configured to:

update the sub-pixel and drive the first common electrode for capacitive sensing by:

driving the first source line with a first voltage; and

modulating, while the first voltage is driven onto the sub-pixel using the first source line, the first common electrode between a second voltage and a third voltage, wherein the first voltage driven on the first source line is selected based on voltage transitions used to modulate the first common electrode;

receive resulting signals from the receiver electrodes while the first common electrode is modulated between the second voltage and the third voltage; and

determine positional information based on the resulting signals.

9. The display device of claim 8 , wherein updating the sub-pixel comprises driving a capacitive element associated with the sub-pixel to a predetermined level to achieve a first brightness level of the sub-pixel.

10. The display device of claim 8 , wherein updating the sub-pixel comprises driving a light-emitting diode associated with the sub-pixel to a predetermined level to achieve a first brightness level of the sub-pixel.

11. The display device of claim 8 , wherein the processing system is configured to simultaneously update the sub-pixel, drive the first common electrode for capacitive sensing, and drive a second common electrode for capacitive sensing by modulating the second common electrode between the second voltage and the third voltage.

12. The display device of claim 8 , wherein the processing system is configured to simultaneously update the sub-pixel and drive the first common electrode for capacitive sensing by modulating the first common electrode between the second voltage and the third voltage and between the second voltage and a fourth voltage.

13. The display device of claim 8 , wherein the processing system is configured to:

update the sub-pixel at a first update frequency;

detect interference associated with the capacitive sensing; and

transition from the first update frequency to a second update frequency.

14. The display device of claim 8 , wherein modulating the first common electrode between the second voltage and the third voltage comprises driving the first common electrode with a substantially square waveform.

15. A method of capacitive sensing with a display device integrated with a capacitive sensing device having a sub-pixel, a first source line coupled to the sub-pixel, a first common electrode directly coupled to the sub-pixel, and a plurality of receiver electrodes, the method comprising:

updating the sub-pixel and driving the first common electrode for capacitive sensing by:

driving the first source line with a first voltage; and

modulating, while the first voltage is driven onto the sub-pixel using the first source line, the first common electrode between a second voltage and a third voltage, wherein the first voltage driven on the first source line is selected based on voltage transitions used to modulate the first common electrode;

receiving resulting signals from the receiver electrodes while the first common electrode is modulated between the second voltage and the third voltage; and

determining positional information based on the resulting signals.

16. The method of claim 15 , wherein updating the sub-pixel comprises driving a capacitive element associated with the sub-pixel to a predetermined level to achieve a first brightness level of the sub-pixel.

17. The method of claim 15 , wherein updating the sub-pixel comprises driving a light-emitting diode associated with the sub-pixel to a predetermined level to achieve a first brightness level of the sub-pixel.

18. The method of claim 15 , further comprising simultaneously updating the sub-pixel, driving the first common electrode for capacitive sensing, and driving a second common electrode for capacitive sensing by modulating the second common electrode between the second voltage and the third voltage.

19. The method of claim 15 , further comprising simultaneously updating the sub-pixel and driving the first common electrode for capacitive sensing by modulating the first common electrode between the second voltage and the third voltage and between the second voltage and a fourth voltage.

20. The method of claim 15 , further comprising:

updating the sub-pixel at a first update frequency;

detecting interference associated with the capacitive sensing; and

transitioning from the first update frequency to a second update frequency.