Capacitive sensor array with pattern variation
First Claim
Patent Images
1. A capacitive sensor array, comprising:
- a plurality of first electrodes, each including at least two first sensor elements connected by at least one first interconnect, wherein each of the plurality of first electrodes is disposed along a first axis; and
a plurality of second electrodes, each including at least two second sensor elements, wherein each of the plurality of second electrodes is disposed along a second axis, and wherein each of the at least two second sensor elements is at least partially disposed within a gap between two adjacent first sensor elements,wherein the plurality of first electrodes and the plurality of second electrodes only cross one another at intersections of the at least one first interconnect and the at least one second interconnect, andwherein a distance between the at least two second sensor elements and each of the two adjacent first sensor elements is variable and decreasing from the intersections.
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Abstract
Embodiments described herein provide capacitive sensor arrays. The capacitive sensor arrays include a plurality of column sensor elements arranged in a plurality of columns and a plurality of row sensor elements arranged in a plurality of rows. The plurality of rows and the plurality of columns are arranged such that each of the row sensor elements is at least partially within a gap between adjacent ones of the column sensor elements. A capacitance between a first portion of one of the columns and an adjacent first portion of one of the rows is greater than a capacitance between a second portion of one of the columns and an adjacent second portion of one of the rows.
43 Citations
21 Claims
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1. A capacitive sensor array, comprising:
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a plurality of first electrodes, each including at least two first sensor elements connected by at least one first interconnect, wherein each of the plurality of first electrodes is disposed along a first axis; and a plurality of second electrodes, each including at least two second sensor elements, wherein each of the plurality of second electrodes is disposed along a second axis, and wherein each of the at least two second sensor elements is at least partially disposed within a gap between two adjacent first sensor elements, wherein the plurality of first electrodes and the plurality of second electrodes only cross one another at intersections of the at least one first interconnect and the at least one second interconnect, and wherein a distance between the at least two second sensor elements and each of the two adjacent first sensor elements is variable and decreasing from the intersections. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A capacitive sensor array, comprising:
row sensor elements arranged in a set of rows and column sensor elements arranged in a set of columns, wherein the set of rows and columns only intersect one another at at least one intersection which is positioned between the row and the column sensor elements, wherein each of the row sensor elements is located at least partially within a space between two adjacent column sensor elements, and wherein a distance measurement between at least one of the row sensors and its at least one of the two adjacent column sensor elements is varying such that the distance measurement is the largest adjacent to the at least one intersection. - View Dependent Claims (9, 10, 11, 12)
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13. A method, comprising:
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providing a sensor array including a set of column electrodes each including at least two column sensors connected by at least one column interconnect; a set of row electrodes each including at least two row sensors connected by at least one row interconnect, wherein the set of column electrodes and the set of row electrodes are coupled to one another via mutual capacitance, and cross one another only at intersections of the at least one column and row interconnects; providing the set of column electrodes and the row electrodes such that each row sensor is located between at least two adjacent column sensors, and vice versa; and providing, in a first area of the sensor array, a distance between at least one row sensor and its corresponding the at least two adjacent column sensors such that the distance is variable and the largest adjacent to the intersections. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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Specification