Signal measuring method and device for touch screen
First Claim
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1. A signal measuring method for a touch screen comprising:
- determining a delay phase difference for each one or each set of a plurality of driving electrodes of a touch screen comprising a plurality of detecting electrodes, wherein the delay phase difference is a phase difference between a mutual capacitive coupling signal outputted from each one of the plurality of detecting electrodes and a driving signal inputted to said each one or each set of the plurality of driving electrodes; and
delaying a mutual capacitive coupling detection of all of the plurality of detecting electrodes for the delay phase difference when the driving signal is inputted to said each one or each set of the plurality of driving electrodes.
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Abstract
Each one or each set of driving electrodes of a touch screen corresponds to a delay phase difference. Whenever a driving signal is provided to one or a set of the driving electrodes, a signal on at least one of sensing electrodes of the touch screen is measured after being delayed by the delay phase difference corresponding to the one or the set of the driving electrodes being provided with the driving signal.
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Citations
20 Claims
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1. A signal measuring method for a touch screen comprising:
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determining a delay phase difference for each one or each set of a plurality of driving electrodes of a touch screen comprising a plurality of detecting electrodes, wherein the delay phase difference is a phase difference between a mutual capacitive coupling signal outputted from each one of the plurality of detecting electrodes and a driving signal inputted to said each one or each set of the plurality of driving electrodes; and delaying a mutual capacitive coupling detection of all of the plurality of detecting electrodes for the delay phase difference when the driving signal is inputted to said each one or each set of the plurality of driving electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A signal measuring method for a touch screen comprising:
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regarding each one or each set of a plurality of driving electrodes and each intersecting one or a set of a plurality of detecting electrodes of a touch screen as a detecting combination, wherein the delay phase difference is a phase difference between a mutual capacitive coupling signal outputted from each one of the plurality of detecting electrodes and a driving signal inputted to said each one or each set of the plurality of driving electrodes; determining a delay phase difference for each detecting combination; and delaying a mutual capacitive coupling detection of all of the plurality of detecting electrodes for the delay phase difference when the driving signal is inputted to said each one or each set of the plurality of driving electrodes. - View Dependent Claims (9, 10)
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11. A signal measuring device for a touch screen comprising:
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a touch screen including a plurality of electrodes comprising a plurality of driving electrodes arranged in parallel and a plurality of detecting electrodes arranged in parallel, the driving electrodes and the detecting electrodes intersecting one another at a plurality of intersections; a driving circuit for sequentially providing a driving signal to each one or each set of the plurality of driving electrodes, the plurality of driving electrodes being provided with the driving signal being mutual capacitive coupled with the plurality of detecting electrodes, wherein each one or each set of the plurality of driving electrodes corresponds to a delay phase difference; a detecting circuit for determining the delay phase difference for each one or each set of the plurality of driving electrodes, and delaying a mutual capacitive coupling detection of all of the plurality of detecting electrodes for the delay phase difference when the driving signal is inputted to said each one or each set of the plurality of driving electrodes, wherein the delay phase difference is a phase difference between a mutual capacitive coupling signal outputted from each one of the plurality of detecting electrodes and a driving signal inputted to said each one or each set of the plurality of driving electrodes. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A signal measuring device for a touch screen comprising:
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a touch screen including a plurality of electrodes comprising a plurality of driving electrodes arranged in parallel and a plurality of detecting electrodes arranged in parallel, the driving electrodes and the detecting electrodes intersecting one another at a plurality of intersections; a driving circuit for sequentially providing a driving signal to each one or each set of the plurality of driving electrodes, the plurality of driving electrodes being provided with the driving signal in each one of the plurality of detecting combination being provided with the driving signal being mutual capacitive coupled with the intersecting sensing of the plurality of detecting electrodes, wherein each one or each set of the plurality of driving electrodes and each intersecting one or a set of the plurality of detecting electrodes is regarded as a detecting combination, and each detecting combination corresponds to a delay phase difference; and a detecting circuit for determining the delay phase difference for each one or each set of the plurality of driving electrodes, and delaying a mutual capacitive coupling detection of all of the plurality of detecting electrodes for the delay phase difference when the driving signal is inputted to said each one or each set of the plurality of driving electrodes, wherein the delay phase difference is a phase difference between a mutual capacitive coupling signal outputted from each one of the plurality of detecting electrodes and a driving signal inputted to said each one or each set of the plurality of driving electrodes. - View Dependent Claims (19, 20)
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Specification