Compensating for source line interference

摘要

Embodiments of the present invention generally provide an input device including a display device having an integrated capacitive sensing device. The input device includes a plurality of source lines, a plurality of routing traces coupled to a plurality of sensor electrodes, and a processing system. The processing system is configured to update a first sub-pixel coupled to a first source line by driving the first source line with a first voltage. The processing system is further configured to drive one or more routing traces included in the plurality of routing traces with a second voltage that is an inverted version of the first voltage. The processing system is further configured to receive resulting signals from at least one sensor electrode via the one or more routing traces while the one or more routing traces are driven with the second voltage, and determine positional information based on the resulting signals.

主权项

1. An input device comprising a display device having an integrated capacitive sensing device, the input device comprising:
a plurality of source lines; a plurality of routing traces coupled to a plurality of sensor electrodes; and a processing system coupled to the plurality of source lines and the plurality of routing traces, the processing system configured to:
update a first sub-pixel coupled to a first source line included in the plurality of source lines by driving the first source line with a first voltage;drive one or more routing traces included in the plurality of routing traces with a second voltage, wherein the second voltage is an inverted version of the first voltage;receive resulting signals from at least one sensor electrode included in the plurality of sensor electrodes via the one or more routing traces while the one or more routing traces are driven with the second voltage; anddetermine positional information based on the resulting signals.