One-dimensional capacitive touch panel with stable coupling capacitance
First Claim
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1. A touch sensitive device, comprising:
- a capacitive touch panel comprising plural electrodes;
a driving and sensing circuit electrically connected to the electrodes of the capacitive touch panel through plural sensing lines; and
at least one conductive member arranged to cross over the sensing lines without contact with any of the sensing lines, and electrically connected to the driving and sensing circuit,wherein the driving and sensing circuit outputs a driving signal to the capacitive touch panel through the at least one conductive member, and receiving sensing signals through the sensing lines, so as to generate a coupling effect between the at least one conductive member and the sensing lines for detecting a touch-sensing action at the capacitive touch panel.
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Abstract
A touch sensitive device includes a capacitive touch panel with plural electrodes, a driving and sensing circuit electrically connected to the electrodes through sensing lines, and at least one conductive member. The conductive member is arranged orthogonal to and crosses the sensing lines without contact and is electrically connected to the driving and sensing circuit. Therefore, a stable coupling capacitance is provided for a one dimensional capacitive touch panel for improved touch sense performance.
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Citations
15 Claims
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1. A touch sensitive device, comprising:
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a capacitive touch panel comprising plural electrodes; a driving and sensing circuit electrically connected to the electrodes of the capacitive touch panel through plural sensing lines; and at least one conductive member arranged to cross over the sensing lines without contact with any of the sensing lines, and electrically connected to the driving and sensing circuit, wherein the driving and sensing circuit outputs a driving signal to the capacitive touch panel through the at least one conductive member, and receiving sensing signals through the sensing lines, so as to generate a coupling effect between the at least one conductive member and the sensing lines for detecting a touch-sensing action at the capacitive touch panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A touch sensitive device, comprising:
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a capacitive touch panel comprising plural electrodes formed in a specified area; a driving and sensing circuit electrically connected to the electrodes of the capacitive touch panel through plural sensing lines extending out of the specified area; and at least one conductive member arranged to cross over the sensing lines outside the specified area without contact with any of the sensing lines, and electrically connected to the driving and sensing circuit, wherein the driving and sensing circuit outputs a driving signal to the capacitive touch panel through the at least one conductive member, and receiving sensing signals through the sensing lines, so as to generate a coupling effect between the at least one conductive member and the sensing lines for detecting a touch-sensing action at the capacitive touch panel.
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Specification