Edge grip detection method of a touch panel and a device using the same
First Claim
1. An edge grip detection method of a touch panel, wherein the touch panel comprises a plurality of first axial electrodes, a plurality of second axial electrodes, an edge area and an operation area, the method comprising:
- a) determining whether an edge area state has changed, comprising steps of;
determining whether sum of signal strength of the first axial electrode on the edge area is greater than a first threshold value;
further determining whether sum of signal strength of the first axial electrode on other areas is less than a second threshold value; and
determining whether number of touched first axial electrodes is less than or equal to number of electrodes on the edge area;
b) eliminating a first edge signal when the edge area state does not change; and
c) updating the first edge signal as a next standard signal when the edge area state changes.
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Accused Products
Abstract
The present disclosure relates to a touch panel technology, and especially to an edge grip detection method of a touch panel and a device using the same. The edge grip detection method comprises: determining whether an edge area state has changed; eliminating a first edge signal when the edge area state does not change; and updating the first edge signal as next standard signal when the edge area state changes. The edge grip detection method and an edge grip detecting device of the touch panel opportunely detect and dynamically update state and data of the edge area, thereby eliminating edge grip signals from touch signals of the touch panel to obtain normal touch signals. Thus, impact on the normal operation of the touch panel by edge grips is reduced.
25 Citations
16 Claims
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1. An edge grip detection method of a touch panel, wherein the touch panel comprises a plurality of first axial electrodes, a plurality of second axial electrodes, an edge area and an operation area, the method comprising:
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a) determining whether an edge area state has changed, comprising steps of; determining whether sum of signal strength of the first axial electrode on the edge area is greater than a first threshold value; further determining whether sum of signal strength of the first axial electrode on other areas is less than a second threshold value; and determining whether number of touched first axial electrodes is less than or equal to number of electrodes on the edge area; b) eliminating a first edge signal when the edge area state does not change; and c) updating the first edge signal as a next standard signal when the edge area state changes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An edge grip detection device of a touch panel, wherein the touch panel comprises a plurality of first axial electrodes, a plurality of second axial electrodes, an edge area and an operation area, the detection device comprising:
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a first determining unit used for determining whether an edge area state has changed, wherein the first determining unit is further used for;
determining whether sum of signal strength of the first axial electrode on the edge area is greater than a first threshold value, and determining whether sum of signal strength of the first axial electrode on other areas is less than a second threshold value, and determining whether number of touched first axial electrodes is less than and equal to number of electrodes on the edge area;an eliminating unit used for eliminating a first edge signal if the edge area state does not change; and a storage unit used for updating the first edge signal as a next standard signal if the edge area state changes. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification