Mitigating electrode interference in an integrated input device
First Claim
1. An input device comprising a display device having an integrated capacitive sensing device, the input device comprising:
- a plurality of sensor electrodes comprising;
a first sensor electrode set including a first common electrode set of a plurality of common electrodes;
a second sensor electrode set including a second common electrode set of the plurality of common electrodes; and
a third sensor electrode set including a third common electrode set of the plurality of common electrodes;
a plurality of gate electrodes;
a gate selector coupled to the plurality of gate electrodes and configured to select each gate electrode to update a corresponding display line of the display device, wherein a first gate electrode corresponds to a first display line, a second gate electrode corresponds to a second display line, and a third gate electrode corresponds to a third display line; and
a processing system coupled to the plurality of common electrodes, the processing system configured to;
drive the first sensor electrode set for capacitive sensing during a first sensor electrode set sensing period;
drive the second sensor electrode set for capacitive sensing during a second sensor electrode set sensing period;
drive the third sensor electrode set for capacitive sensing during a third sensor electrode set sensing period;
update the first display line during a first display update period of a display frame by driving a common electrode of the first common electrode set when the gate selector selects the first gate electrode;
update the second display line during a second display update period of the display frame by driving a common electrode of the second common electrode set when the gate selector selects the second gate electrode; and
update the third display line during a third display update period of the display frame by driving a common electrode of the third common electrode set when the gate selector selects the third gate electrode,wherein a sensor electrode of the first sensor electrode set that is driven last during the first sensor electrode set sensing period and a sensor electrode of the second sensor electrode set that is driven first during the second sensor electrode set sensing period are spatially non-sequential sensor electrodes, the first display update period and the first sensor electrode set sensing period are non-consecutive and non-overlapping, the second display update period and the second sensor electrode set sensing period are non-consecutive and non-overlapping, and the third display update period and the third sensor electrode set sensing period are non-consecutive and non-overlapping, andwherein the first sensor electrode set sensing period occurs twice during the display frame and the first display update period, the second display update period, and the third display update period occur once during the display frame.
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Accused Products
Abstract
Embodiments of the present invention generally provide an integrated input device. The integrated input device includes a plurality of sensor electrode sets including a plurality of common electrode sets, a plurality of gate electrodes, and a gate selector. A processing system is configured to drive the sensor electrode sets for capacitive sensing during a plurality of sensing periods and update display lines by driving the common electrode sets during display update periods. A sensor electrode of a first sensor electrode set that is driven last during a first sensing period and a sensor electrode of a second sensor electrode set that is driven first during a second sensing period are spatially non-sequential sensor electrodes. The first display update period, second display update period, and third display update period are non-consecutive and non-overlapping with the first sensing period, the second sensing period, and the third display update period, respectively.
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Citations
22 Claims
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1. An input device comprising a display device having an integrated capacitive sensing device, the input device comprising:
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a plurality of sensor electrodes comprising; a first sensor electrode set including a first common electrode set of a plurality of common electrodes; a second sensor electrode set including a second common electrode set of the plurality of common electrodes; and a third sensor electrode set including a third common electrode set of the plurality of common electrodes; a plurality of gate electrodes; a gate selector coupled to the plurality of gate electrodes and configured to select each gate electrode to update a corresponding display line of the display device, wherein a first gate electrode corresponds to a first display line, a second gate electrode corresponds to a second display line, and a third gate electrode corresponds to a third display line; and a processing system coupled to the plurality of common electrodes, the processing system configured to; drive the first sensor electrode set for capacitive sensing during a first sensor electrode set sensing period; drive the second sensor electrode set for capacitive sensing during a second sensor electrode set sensing period; drive the third sensor electrode set for capacitive sensing during a third sensor electrode set sensing period; update the first display line during a first display update period of a display frame by driving a common electrode of the first common electrode set when the gate selector selects the first gate electrode; update the second display line during a second display update period of the display frame by driving a common electrode of the second common electrode set when the gate selector selects the second gate electrode; and update the third display line during a third display update period of the display frame by driving a common electrode of the third common electrode set when the gate selector selects the third gate electrode, wherein a sensor electrode of the first sensor electrode set that is driven last during the first sensor electrode set sensing period and a sensor electrode of the second sensor electrode set that is driven first during the second sensor electrode set sensing period are spatially non-sequential sensor electrodes, the first display update period and the first sensor electrode set sensing period are non-consecutive and non-overlapping, the second display update period and the second sensor electrode set sensing period are non-consecutive and non-overlapping, and the third display update period and the third sensor electrode set sensing period are non-consecutive and non-overlapping, and wherein the first sensor electrode set sensing period occurs twice during the display frame and the first display update period, the second display update period, and the third display update period occur once during the display frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of input sensing with a display device having an integrated capacitive sensing device and including a plurality of sensor electrodes and a plurality of gate electrodes, the method comprising:
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driving a first sensor electrode set of the plurality of sensor electrodes for capacitive sensing during a first sensor electrode set sensing period, the first sensor electrode set including a first common electrode set of a plurality of common electrodes; driving a second sensor electrode set of the plurality of sensor electrodes for capacitive sensing during a second sensor electrode set sensing period, the second sensor electrode set including a second common electrode set of the plurality of common electrodes; driving a third sensor electrode set of the plurality of sensor electrodes for capacitive sensing during a third sensor electrode set sensing period, the third sensor electrode set including a third common electrode set of the plurality of common electrodes; driving a first gate electrode of the plurality of gate electrodes to select a first display line during a first display update period of a display frame; updating the first display line by driving a common electrode of the first common electrode set during the first display update period; driving a second gate electrode of the plurality of gate electrodes to select a second display line during a second display update period of the display frame; updating the second display line by driving a common electrode of the second common electrode set during the second display update period; driving a third gate electrode of the plurality of gate electrodes to select a third display line during a third display update period of the display frame; and updating the third display line by driving a common electrode of the third common electrode set during the third display update period, wherein a sensor electrode of the first sensor electrode set that is driven last during the first sensor electrode set sensing period and a sensor electrode of the second sensor electrode set that is driven first during the second sensor electrode set sensing period are spatially non-sequential sensor electrodes, the first display update period and the first sensor electrode set sensing period are non-consecutive and non-overlapping, the second display update period and the second sensor electrode set sensing period are non-consecutive and non-overlapping, and the third display update period and the third sensor electrode set sensing period are non-consecutive and non-overlapping, and wherein the first sensor electrode set sensing period occurs twice during the display frame and the first display update period, the second display update period, and the third display update period occur only once during the display frame. - View Dependent Claims (12, 13, 14, 15)
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16. A processing system for a display device having an integrated sensing device, the processing system comprising:
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a driver module comprising driver circuitry, the driver module having outputs configured for coupling to a plurality of sensor electrodes and a plurality of gate electrodes, the driver module configured for; driving a first sensor electrode set of the plurality of sensor electrodes for capacitive sensing during a first sensor electrode set sensing period, the first sensor electrode set including a first common electrode set of a plurality of common electrodes; driving a second sensor electrode set of the plurality of sensor electrodes for capacitive sensing during a second sensor electrode set sensing period, the second sensor electrode set including a second common electrode set of the plurality of common electrodes; driving a third sensor electrode set of the plurality of sensor electrodes for capacitive sensing during a third sensor electrode set sensing period, the third sensor electrode set including a third common electrode set of the plurality of common electrodes; driving a first gate electrode of the plurality of gate electrodes to select a first display line during a first display update period of a display frame; updating the first display line by driving a common electrode of the first common electrode set during the first display update period; driving a second gate electrode of the plurality of gate electrodes to select a second display line during a second display update period of the display frame; updating the second display line by driving a common electrode of the second common electrode set during the second display update period; driving a third gate electrode of the plurality of gate electrodes to select a third display line during a third display update period of the display frame; and updating the third display line by driving a common electrode of the third common electrode set during the third display update period; and a receiver module configured for coupling to a plurality of receiver electrodes and configured for receiving resulting signals with the plurality of receiver electrodes when the plurality of sensor electrodes are driven for capacitive sensing, wherein a sensor electrode of the first sensor electrode set that is driven last during the first sensor electrode set sensing period and a sensor electrode of the second sensor electrode set that is driven first during the second sensor electrode set sensing period are spatially non-sequential sensor electrodes, the first display update period and the first sensor electrode set sensing period are non-consecutive and non-overlapping, the second display update period and the second sensor electrode set sensing period are non-consecutive and non-overlapping, and the third display update period and the third sensor electrode set sensing period are non-consecutive and non-overlapping, wherein the first sensor electrode set sensing period, the second sensor electrode set sensing period, and the third sensor electrode set sensing period correspond to non-display update periods of the display device, wherein each of the non-display update periods occurs between display update periods of a display frame of the display device, and wherein no display updating occurs for the display frame during the non-display update periods, and wherein the first sensor electrode set sensing period occurs twice during the display frame and the first display update period, the second display update period, and the third display update period occur once during the display frame. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification