Matrix sensor for image touch sensing
First Claim
1. An input device comprising:
- a plurality of sensor electrodes arranged in a planar matrix array having X columns and Y rows, wherein X and Y are positive integers, each column and row of the planar matrix array comprising at least two sensor electrodes of the plurality of sensor electrodes, each sensor electrode coupled to a unique routing trace that is routed outward of the matrix array, each sensor electrode of the planar matrix array having a geometric plan comprising;
a core; and
a plurality of protrusions extending outward from the core, the protrusions configured to overlap with protrusions extending outward from one or more adjacent sensor electrodes of the planar matrix array; and
a plurality of common electrodes configured for display updating and capacitive sensing,wherein the plurality of common electrodes are coplanar with the plurality of sensor electrodes.
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Accused Products
Abstract
Embodiments described herein include an input device, a display device having a capacitive sensing device, a processing system and a method for detecting presence of an input object using a capacitive sensing device. In one embodiment, an input device includes a plurality of sensor electrodes arranged in a planar matrix array. Each sensor electrode is coupled to unique routing trace and has an identical geometric plan form that is symmetrical about a center of area of the sensor electrode. The geometric plan form of each sensor electrode includes core and a plurality of protrusions extending outward from the core. The protrusions are configured to overlap with protrusions extending outward from each adjacent sensor electrode of the matrix array.
343 Citations
27 Claims
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1. An input device comprising:
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a plurality of sensor electrodes arranged in a planar matrix array having X columns and Y rows, wherein X and Y are positive integers, each column and row of the planar matrix array comprising at least two sensor electrodes of the plurality of sensor electrodes, each sensor electrode coupled to a unique routing trace that is routed outward of the matrix array, each sensor electrode of the planar matrix array having a geometric plan comprising; a core; and a plurality of protrusions extending outward from the core, the protrusions configured to overlap with protrusions extending outward from one or more adjacent sensor electrodes of the planar matrix array; and a plurality of common electrodes configured for display updating and capacitive sensing, wherein the plurality of common electrodes are coplanar with the plurality of sensor electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An input device comprising:
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a plurality of common electrodes of a display device configured for display updating and capacitive sensing; a plurality of sensor electrodes arranged in a planar matrix array having X columns and Y rows, wherein X and Y are positive integers, each column and row of the planar matrix array comprising at least two sensor electrodes of the plurality of sensor electrodes, wherein the plurality of common electrodes are coplanar with the plurality of sensor electrodes, each sensor electrode of the plurality of sensor electrodes coupled to a unique routing trace that is routed outward of the planar matrix array, each sensor electrode of the planar matrix array having a geometric plan comprising; a core; and a plurality of protrusions extending outward from the core, the protrusions configured to overlap with protrusions extending outward from one or more adjacent sensor electrodes of the planar matrix array; and a processing system coupled to the plurality of sensor electrodes, the processing system configured to operate the plurality of sensor electrodes in at least one of a transcapacitive and absolute capacitive mode, the processing system further configured to determine positional information for an input object in a sensing region based on changes in capacitance obtained using the plurality of sensor electrodes. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A processing system for an input device, the processing system comprising;
a sensor module, comprising sensor circuitry, configured to operate a plurality of common electrodes for display updating and capacitive sensing, the sensor circuitry further configured to operate a plurality of sensor electrodes for capacitive sensing arranged in a planar matrix array having X columns and Y rows, wherein X and Y are positive integers, wherein the plurality of common electrodes are coplanar with the plurality of sensor electrodes, each column and row of the planar matrix array comprising at least two sensor electrodes of the plurality of sensor electrodes, each sensor electrode of the planar matrix array having a unique routing trace that is routed outward of the matrix array, each sensor electrode of the planar matrix array having a geometric plan comprising a plurality of protrusions extending outward from a core, the protrusions configured to overlap with protrusions extending outward from one or more adjacent sensor electrodes of the planar matrix array. - View Dependent Claims (25, 26, 27)
Specification