CAPACITIVE TOUCH SCREEN
First Claim
1. A touch processor, executing the operation:
- determining whether at least one touch by at least one proximity object is valid according to the mutual capacitive coupling signals between a plurality of driving electrodes and a plurality of sensing electrodes, wherein the touch processor determines that the touch valid because the mutual capacitive coupling signal between the proximity object and the plurality of driving electrodes is greater than the mutual capacitive coupling signal between the proximity object and the plurality of sensing electrodes.
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Abstract
The present invention provides a mutual capacitive multi-touch screen. The conductive strip pattern allows that, when a touch range of each external conductive object on the mutual capacitive multi-touch screen is larger than a predetermined condition, capacitive coupling between each external conductive object and first conductive strip is greater than capacitive coupling between each external conductive object and second conductive strip, such that the proportion of a driving signal flowing out of the first conductive strip via at least one first external conductive object in the external conductive objects and into the second conductive strip via at least one second external conductive object in the external conductive objects decreases as the number of second external conductive objects increases.
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Citations
23 Claims
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1. A touch processor, executing the operation:
determining whether at least one touch by at least one proximity object is valid according to the mutual capacitive coupling signals between a plurality of driving electrodes and a plurality of sensing electrodes, wherein the touch processor determines that the touch valid because the mutual capacitive coupling signal between the proximity object and the plurality of driving electrodes is greater than the mutual capacitive coupling signal between the proximity object and the plurality of sensing electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A touch method, comprising:
determining whether at least one touch by at least one proximity object is valid according to the mutual capacitive coupling signals between a plurality of driving electrodes and a plurality of sensing electrodes, wherein it is determined that the touch valid because the mutual capacitive coupling signal between the proximity object and the plurality of driving electrodes is greater than the mutual capacitive coupling signal between the proximity object and the plurality of sensing electrodes. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A touch device, comprising
a plurality of driving electrodes, receiving a driving signal; -
a plurality of sensing electrodes, mutual capacitively coupling with the plurality of driving electrodes; and a touch processor, determining whether at least one touch by at least one proximity object is valid according to the mutual capacitive coupling signals between the plurality of driving electrodes and the plurality of sensing electrodes, wherein the touch processor determines that the touch valid because the mutual capacitive coupling signal between the proximity object and the plurality of driving electrodes is greater than the mutual capacitive coupling signal between the proximity object and the plurality of sensing electrodes.
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Specification