SIGNAL MEASURING METHOD AND DEVICE FOR TOUCH SCREEN
First Claim
Patent Images
1. A signal measuring method for a touch screen comprising:
- providing a touch screen including a plurality of electrodes comprising a plurality of driving electrodes arranged in parallel and a plurality of sensing electrodes arranged in parallel, the driving electrodes and the sensing electrodes intersecting one another at a plurality of intersections;
determining a delay phase difference for each one or each set of driving electrodes;
sequentially providing a driving signal to each one or each set of the driving electrodes, the driving electrodes provided with the driving signal being mutual capacitively coupled with the sensing electrodes; and
each time the driving signal being provided, measuring a signal of at least one of the sensing electrodes being provided with the driving signal after delaying it by the delay phase difference corresponding to the one or the set of driving electrodes being provided with the driving signal.
1 Assignment
0 Petitions
Accused Products
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.
-
Citations
20 Claims
-
1. A signal measuring method for a touch screen comprising:
-
providing a touch screen including a plurality of electrodes comprising a plurality of driving electrodes arranged in parallel and a plurality of sensing electrodes arranged in parallel, the driving electrodes and the sensing electrodes intersecting one another at a plurality of intersections; determining a delay phase difference for each one or each set of driving electrodes; sequentially providing a driving signal to each one or each set of the driving electrodes, the driving electrodes provided with the driving signal being mutual capacitively coupled with the sensing electrodes; and each time the driving signal being provided, measuring a signal of at least one of the sensing electrodes being provided with the driving signal after delaying it by the delay phase difference corresponding to the one or the set of driving electrodes being provided with the driving signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A signal measuring method for a touch screen comprising:
-
providing a touch screen including a plurality of electrodes comprising a plurality of driving electrodes arranged in parallel and a plurality of sensing electrodes arranged in parallel, the driving electrodes and the sensing electrodes intersecting one another at a plurality of intersections; regarding each one or each set of the driving electrodes and each intersecting one or a set of the sensing electrodes as a detecting combination; determining a delay phase difference for each detecting combination; sequentially providing a driving signal to each one or each set of the driving electrodes, the driving electrodes provided with the driving signal in the detecting combination provided with the driving signal being mutual capacitively coupled with the intersecting sensing electrodes; and each time the driving signal being provided, measuring a signal of each detecting combination being provided with the driving signal after delaying it by the corresponding delay phase difference. - View Dependent Claims (9, 10)
-
-
11. A signal measuring device for a touch screen comprising:
-
a touch screen including a plurality of electrodes comprising a plurality of driving electrodes arranged in parallel and a plurality of sensing electrodes arranged in parallel, the driving electrodes and the sensing 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 driving electrodes, the driving electrodes being provided with the driving signal being mutual capacitively coupled with the sensing electrodes, wherein each one or each set of the driving electrodes corresponds to a delay phase difference; a detecting circuit for determining a delay phase difference for each one or each set of driving electrodes, and each time the driving signal being provided, measuring a signal of at least one of the sensing electrodes being provided with the driving signal after delaying it by the delay phase difference corresponding to the one or set of driving electrodes being provided with the driving signal. - View Dependent Claims (12, 13, 14, 15, 16, 17)
-
-
18. A signal measuring device for a touch screen comprising:
-
a touch screen including a plurality of electrodes comprising a plurality of driving electrodes arranged in parallel and a plurality of sensing electrodes arranged in parallel, the driving electrodes and the sensing 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 driving electrodes, the driving electrodes being provided with the driving signal in the detecting combination being provided with the driving signal being mutual capacitively coupled with the intersecting sensing electrodes, wherein each one or each set of the driving electrodes and each intersecting one or a set of the sensing electrodes is regarded as a detecting combination, and each detecting combination corresponds to a delay phase difference; and a detecting circuit for measuring a signal of each detecting combination being provided with the driving signal after delaying it by the corresponding delay phase difference each time the driving signal is provided. - View Dependent Claims (19, 20)
-
Specification