SLIM sensor design with minimum tail effect
First Claim
1. A sensor array comprising:
- a substrate;
a first plurality of receive (RX) electrodes and a second plurality of transmit (TX) electrodes, wherein the first plurality of RX electrodes and the second plurality of TX electrodes are interleaved without intersecting each other within a central area in a single layer on the substrate;
wherein a first shaped portion of a first RX electrode, of the first plurality of RX electrodes, is connected to a first primary trace of the first RX electrode and a second shaped portion of the first RX electrode is connected to a second primary trace of the first RX electrode;
wherein the first shaped portion and the second shaped portion of the first RX electrode are interleaved with a second TX electrode of the second plurality of TX electrodes, thereby forming a single sensor element of the sensor array;
wherein the first primary trace of the first RX electrode is routed in a first direction on the substrate through the central area to a first edge of the central area and the second primary trace of the first RX electrode is routed in a second different direction on the substrate through the central area to a second opposite edge of the central area; and
wherein the first primary trace of the first RX electrode is coupled to the second primary trace of the first RX electrode outside of the central area.
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Accused Products
Abstract
Techniques for designs of single-layer touch sensors are described herein. In an example embodiment, a device comprises a sensor array. The sensor array comprises first plurality of electrodes and second plurality of electrodes that are interleaved without intersecting each other within a touch-sensing area in a single layer on a substrate of the sensor array. A first electrode (of the first or second plurality) comprises at least two shaped portions. The two shaped portions may be disposed across at least a portion of a given second electrode from each other, or may be disposed between two or more portions of the given second electrode. The two shaped portions of the first electrode are routed in different directions on the substrate and are coupled to each other outside of the touch-sensing area of the sensor array.
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Citations
18 Claims
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1. A sensor array comprising:
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a substrate; a first plurality of receive (RX) electrodes and a second plurality of transmit (TX) electrodes, wherein the first plurality of RX electrodes and the second plurality of TX electrodes are interleaved without intersecting each other within a central area in a single layer on the substrate; wherein a first shaped portion of a first RX electrode, of the first plurality of RX electrodes, is connected to a first primary trace of the first RX electrode and a second shaped portion of the first RX electrode is connected to a second primary trace of the first RX electrode; wherein the first shaped portion and the second shaped portion of the first RX electrode are interleaved with a second TX electrode of the second plurality of TX electrodes, thereby forming a single sensor element of the sensor array; wherein the first primary trace of the first RX electrode is routed in a first direction on the substrate through the central area to a first edge of the central area and the second primary trace of the first RX electrode is routed in a second different direction on the substrate through the central area to a second opposite edge of the central area; and wherein the first primary trace of the first RX electrode is coupled to the second primary trace of the first RX electrode outside of the central area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A device comprising:
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a sensor array comprising receive (RX) electrodes and transmit (TX) electrodes, wherein the RX electrodes and the TX electrodes are interleaved without intersecting each other within a central area in a single layer on a substrate of the sensor array; wherein a first shaped portion of an RX electrode is connected to a first primary trace of the RX electrode and a second shaped portion of the RX electrode is connected to a second primary trace of the RX electrode, wherein the first shaped portion and the second shaped portion of the RX electrode are interleaved with a TX electrode, thereby forming a single sensor element of the sensor array, and wherein the first primary trace of the RX electrode is routed in a first direction on the substrate through the central area to a first edge of the central area and the second primary trace of the RX electrode is routed in a second different direction on the substrate through the central area to a second opposite edge of the central area; and wherein the first primary trace of the RX electrode is coupled to the second primary trace of the RX electrode outside of the central area of the sensor array. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A system comprising:
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a capacitive sensor array comprising first receive (RX) electrodes and second transmit (TX) electrodes, wherein the first RX electrodes and the second TX electrodes are interleaved without intersecting each other within a central area in a single layer on a substrate of the capacitive sensor array; wherein a first shaped portion of a first RX electrode is connected to a first primary trace of the first RX electrode and a second shaped portion of the first RX electrode is connected to a second primary trace of the first RX electrode, wherein the first shaped portion and the second shaped portion of the first RX electrode are interleaved with a second TX electrode, thereby forming a single sensor element of the capacitive sensor array, wherein the first primary trace of the first RX electrode is routed in a first direction on the substrate through the central area to a first edge of the central area and the second primary trace of the first RX electrode is routed in a second different direction on the substrate through the central area to a second opposite edge of the central area, and wherein the first primary trace of the first RX electrode is coupled to the second primary trace of the first RX electrode outside of the central area of the sensor array; and a capacitance sensor coupled to the capacitive sensor array, wherein the capacitance sensor is configured to measure a plurality of measurements from the first RX electrodes, the plurality of measurements being representative of a conductive object that is in contact with the capacitive sensor array. - View Dependent Claims (17, 18)
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Specification