Far-field sensing with a display device having an integrated sensing device

1. An input device comprising a display device integrated with a capacitive sensing device, the input device comprising:

a plurality of transmitter electrodes, each transmitter electrode comprising one or more common electrodes configured to be driven for display updating and capacitive sensing;

a plurality of near-field receiver electrodes configured to perform capacitive sensing in a near-field sensing region disposed between an input surface of the input device and a far-field sensing region;

a plurality of far-field receiver electrodes configured to perform capacitive sensing in the far-field sensing region, wherein a geometric property of a far-field receiver electrode included in the plurality of far-field receiver electrodes is different than the geometric property of a near-field receiver electrode included in the plurality of near-field receiver electrodes; and

a processing system coupled to the plurality of transmitter electrodes, the plurality of near-field receiver electrodes, and the plurality of far-field receiver electrodes, the processing system configured to:

drive the plurality of transmitter electrodes for capacitive sensing;

receive first resulting signals with the plurality of near-field receiver electrodes when the plurality of transmitter electrodes are driven for capacitive sensing;

determine a near-field capacitive image based on the first resulting signals;

receive second resulting signals with the plurality of far-field receiver electrodes when the plurality of transmitter electrodes are driven for capacitive sensing; and

determine a far-field capacitive image based on the second resulting signals.

2. The input device of claim 1 , wherein the geometric property is an electrode width, and the electrode width of the far-field receiver electrode included in the plurality of far-field receiver electrodes is greater than the electrode width of a near-field receiver electrode included in the plurality of near-field receiver electrodes.

3. The input device of claim 1 , wherein the plurality of far-field receiver electrodes are spatially interleaved with the plurality of near-field receiver electrodes.

4. The input device of claim 1 , wherein the plurality of near-field receiver electrodes are associated with a first pattern, and the plurality of far-field receiver electrodes are associated with a second pattern that is complementary to the first pattern.

5. The input device of claim 1 , wherein the processing system is further configured to switch from performing capacitive sensing in the far-field sensing region to performing capacitive sensing in the near-field sensing region in response to the second resulting signals.

6. The input device of claim 1 , wherein the processing system is coupled to the plurality of near-field receiver electrodes and the plurality of far-field receiver electrodes via one or more multiplexers.

7. The input device of claim 1 , wherein the plurality of near-field receiver electrodes and the plurality of far-field receiver electrodes are disposed on a first substrate of the input device.

8. The input device of claim 1 , wherein the plurality of near-field receiver electrodes are disposed on a first substrate of the input device, and the plurality of far-field receiver electrodes are disposed on a second substrate of the input device.

9. The input device of claim 1 , wherein the plurality of near-field receiver electrodes comprise one or more common electrodes, and the plurality of far-field receiver electrodes are disposed between a thin-film transistor substrate of the input device and a color filter glass of the input device.

10. The input device of claim 1 , wherein the plurality of near-field receiver electrodes comprise one or more common electrodes, and the plurality of far-field receiver electrodes are disposed between a cover lens of the input device and a color filter glass of the input device.

11. The input device of claim 1 , wherein the processing system is configured to simultaneously receive the first resulting signals and the second resulting signals.

12. The input device of claim 1 , wherein the processing system is configured to receive the first resulting signals and the second resulting signals in an alternating manner.

13. A processing system for a display device integrated with a capacitive sensing device comprising:

a driver module comprising driver circuitry, the driver module coupled to a plurality of common electrodes configured to be driven for display updating and capacitive sensing;

a receiver module coupled to a plurality of near-field receiver electrodes and a plurality of far-field receiver electrodes, wherein a geometric property of a far-field receiver electrode included in the plurality of far-field receiver electrodes is different than the geometric property of a near-field receiver electrode included in the plurality of near-field receiver electrodes, the receiver module configured for:

receiving first resulting signals with the plurality of near-field receiver electrodes when the plurality of common electrodes are driven for capacitive sensing, wherein the plurality of near-field receiver electrodes are configured for performing capacitive sensing in a near-field sensing region disposed between an input surface of the capacitive sensing device and a far-field sensing region; and

receiving second resulting signals with the plurality of far-field receiver electrodes when the plurality of common electrodes are driven for capacitive sensing, wherein the plurality of far-field receiver electrodes are configured for performing capacitive sensing in the far-field sensing region; and

a determination module configured for:

determining a near-field capacitive image based on the first resulting signals; and

determining a far-field capacitive image based on the second resulting signals.

14. The processing system of claim 13 , wherein the geometric property is an electrode width, and the electrode width of the far-field receiver electrode included in the plurality of far-field receiver electrodes is greater than the electrode width of a near-field receiver electrode included in the plurality of near-field receiver electrodes.

15. The processing system of claim 13 , wherein the plurality of far-field receiver electrodes are spatially interleaved with the plurality of near-field receiver electrodes.

16. The processing system of claim 13 , wherein the receiver module is further configured for switching from performing capacitive sensing in the far-field sensing region to performing capacitive sensing in the near-field sensing region in response to the second resulting signals.

17. The processing system of claim 13 , further comprising one or more multiplexers configured to switch the receiver module between the plurality of near-field receiver electrodes and the plurality of far-field receiver electrodes.

18. The processing system of claim 13 , wherein the processing system is configured to simultaneously receive the first resulting signals and the second resulting signals.

19. The processing system of claim 13 , wherein the processing system is configured to receive the first resulting signals and the second resulting signals in an alternating manner.

20. A method of capacitive sensing with a display device integrated with a capacitive sensing device having a plurality of common electrodes, a plurality of near-field receiver electrodes, and a plurality of far-field receiver electrodes, wherein a geometric property of a far-field receiver electrode included in the plurality of far-field receiver electrodes is different than the geometric property of a near-field receiver electrode included in the plurality of near-field receiver electrodes, the method comprising:

driving the plurality of common electrodes for display updating and capacitive sensing;

receiving first resulting signals with the plurality of near-field receiver electrodes when the plurality of common electrodes are driven for capacitive sensing, wherein the plurality of near-field receiver electrodes are configured to perform capacitive sensing in a near-field sensing region disposed between an input surface of the input device and a far-field sensing region;

determining a near-field capacitive image based on the first resulting signals;

receiving second resulting signals with the plurality of far-field receiver electrodes when the plurality of common electrodes are driven for capacitive sensing, wherein the plurality of far-field receiver electrodes are configured to perform capacitive sensing in the far-field sensing region; and

determining a far-field capacitive image based on the second resulting signals.

21. The method of claim 20 , further comprising switching from performing capacitive sensing in the far-field sensing region to performing capacitive sensing in the near-field sensing region in response to the second resulting signals.

22. The method of claim 20 , wherein the first resulting signals and the second resulting signals are received simultaneously.

23. The method of claim 20 , wherein the first resulting signals and the second resulting signals are received in an alternating manner.