Lattice structure for capacitance sensing electrodes
First Claim
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1. A capacitive sensor array, comprising:
- a first plurality of sensor elements each comprising a core trace, wherein for each sensor element of the first plurality of sensor elements, the core trace of the sensor element is wider than any other trace of the sensor element; and
a second sensor element comprising a main trace, wherein the main trace crosses the core trace of each of the first plurality of sensor elements at a corresponding bridge to form a plurality of intersections each associated with a unit cell, wherein each of the plurality of unit cells designates a set of locations nearest a corresponding intersection, wherein a contiguous section of the main trace crosses at least one of the plurality of unit cells, wherein a contiguous section of the core trace of each of the first plurality of sensor elements crosses at least one of the plurality of unit cells, and wherein, within each unit cell, the second sensor element comprises at least one primary subtrace branching away from the main trace.
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Abstract
One embodiment of a capacitive sensor array may comprise a first plurality of sensor elements and a second sensor element comprising a main trace, where the main trace intersects each of the first plurality of sensor elements to form a plurality of intersections. A unit cell may be associated with each of the intersections, and each unit cell may designate a set of locations nearest to the corresponding intersection. A contiguous section of the main trace may cross at least one of the plurality of unit cells. Within each unit cell, the second sensor element may comprise at least one primary subtrace branching away from the main trace.
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Citations
20 Claims
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1. A capacitive sensor array, comprising:
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a first plurality of sensor elements each comprising a core trace, wherein for each sensor element of the first plurality of sensor elements, the core trace of the sensor element is wider than any other trace of the sensor element; and a second sensor element comprising a main trace, wherein the main trace crosses the core trace of each of the first plurality of sensor elements at a corresponding bridge to form a plurality of intersections each associated with a unit cell, wherein each of the plurality of unit cells designates a set of locations nearest a corresponding intersection, wherein a contiguous section of the main trace crosses at least one of the plurality of unit cells, wherein a contiguous section of the core trace of each of the first plurality of sensor elements crosses at least one of the plurality of unit cells, and wherein, within each unit cell, the second sensor element comprises at least one primary subtrace branching away from the main trace. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A capacitive sensor array, comprising:
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a first plurality of sensor elements, wherein each of the first plurality of sensor elements comprises a core trace, wherein for each sensor element of the first plurality of sensor elements, the core trace of the sensor element is wider than any other trace of the sensor element; and a second sensor element capacitively coupled to each of the first plurality of sensor elements, wherein the second sensor element comprises; a main trace, and a plurality of primary subtraces branching away from the main trace, wherein the main trace intersects the core trace of each of the first plurality of sensor elements at a corresponding bridge to form a plurality of unit cells, wherein each of the plurality of unit cells designates an area corresponding to an intersection between the second sensor element and one of the first plurality of sensor elements, wherein a contiguous section of the main trace crosses at least one of the plurality of unit cells, and wherein a contiguous section of the core trace of each of the first plurality of sensor elements crosses at least one of the plurality of unit cells. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A capacitive touch-sensing system, comprising:
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a capacitive sensor array, comprising; a first plurality of sensor elements, wherein each of the first plurality of sensor elements comprises a core trace, wherein for each sensor element of the first plurality of sensor elements, the core trace of the sensor element is wider than any other trace of the sensor element, and a second sensor element comprising a main trace, wherein the main trace intersects the core trace of each of the first plurality of sensor elements at a corresponding bridge to form a plurality of unit cells, wherein each of the plurality of unit cells designates an area corresponding to an intersection between the second sensor element and one of the first plurality of sensor elements, wherein a contiguous section of the main trace crosses at least one of the plurality of unit cells, and wherein, within each unit cell, the second sensor element comprises at least one primary subtrace branching away from the main trace; and a capacitance sensor coupled with the capacitive sensor array, wherein the capacitance sensor is configured to measure a mutual capacitance for each intersection between the second sensor element and one of the first plurality of sensor elements. - View Dependent Claims (18, 19, 20)
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Specification