COMPENSATING FOR SOURCE LINE INTERFERENCE
First Claim
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; and
determine positional information based on the resulting signals.
3 Assignments
0 Petitions
Accused Products
Abstract
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.
-
Citations
25 Claims
-
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; and determine positional information based on the resulting signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method of input sensing with a display device having an integrated capacitive sensing device and including a plurality of source lines and a plurality of sensor electrodes, the method comprising:
-
updating 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; driving one or more sensor electrodes included in the plurality of sensor electrodes with a second voltage that is an inverted version of the first voltage; receiving resulting signals from the one or more sensor electrodes while the one or more sensor electrodes are driven with the second voltage; and determining positional information based on the resulting signals. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
-
21. A processing system for a display device having an integrated sensing device, the processing system comprising:
-
a driver module comprising driver circuitry, the driver module coupled to a plurality of source lines and configured for updating 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; a sensor module coupled to a plurality of routing traces, each routing trace being coupled to a sensor electrode included in a plurality of sensor electrodes, the sensor module configured for receiving resulting signals with at least one sensor electrode included in the plurality of sensor electrodes via one or more routing traces included in the plurality of routing traces while the one or more routing traces are driven with the second voltage, wherein the second voltage is an inverted version of the first voltage; and a determination module configured for determining positional information based on the resulting signals. - View Dependent Claims (22, 23, 24, 25)
-
Specification