Device for scanning and detecting touch point of touch control panel and method thereof
First Claim
1. A touch control panel, comprising:
- a first substrate forming a first conductive layer which comprises a plurality of elongate conductive strips that are substantially parallel to but do not engage each other, the elongate conductive strips extending in a first direction and having opposite first and second ends;
a second substrate forming a second conductive layer, which comprises a plurality of elongate conductive strips that are substantially parallel to but do not engage each other, the elongate conductive strips extending in a second direction and having opposite first and second ends, the first substrate and the second substrate being spaced from each other by insulation spacers;
a driving/scanning circuit connected to the elongate conductive strips of the first conductive layer via driving/scanning lines respectively;
a scan sensing circuit connected to the elongate conductive strips of the second conductive layers via scanning lines respectively; and
a micro-controller connected to the driving/scanning circuit and the scan sensing circuit;
wherein the driving/scanning circuit sequentially drives the elongate conductive strips of the first conductive layer and at the time when the driving/scanning circuit sequentially drives one of the elongate conductive strips of the first conductive layer, the scan sensing circuit sequentially scans/detects the elongate conductive strips of the second conductive layer to detect a touch location occurring on the touch control panel.
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Accused Products
Abstract
A device for scanning and detecting a touch point of a touch control panel is disclosed, wherein a driving/scanning circuit carries out one-end-sequential-driving or both-end-sequential-driving for driving each elongate conductive strip of a first conductive layer of the touch control panel, and a scan sensing circuit carries out one-end-sequential-scanning, both-end-sequential-scanning or sequential both-end-simultaneous-scanning operation over each elongate conductive strips of a second conductive layer of the touch control panel. Based on the result of the scanning operation that the scan sensing circuit performs over the elongate conductive strips of the second conductive layer, at least one touch location can be detected on each elongate conductive strip of the second conductive layer with respect to each elongate conductive strip of the first conductive layer.
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Citations
10 Claims
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1. A touch control panel, comprising:
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a first substrate forming a first conductive layer which comprises a plurality of elongate conductive strips that are substantially parallel to but do not engage each other, the elongate conductive strips extending in a first direction and having opposite first and second ends; a second substrate forming a second conductive layer, which comprises a plurality of elongate conductive strips that are substantially parallel to but do not engage each other, the elongate conductive strips extending in a second direction and having opposite first and second ends, the first substrate and the second substrate being spaced from each other by insulation spacers; a driving/scanning circuit connected to the elongate conductive strips of the first conductive layer via driving/scanning lines respectively; a scan sensing circuit connected to the elongate conductive strips of the second conductive layers via scanning lines respectively; and a micro-controller connected to the driving/scanning circuit and the scan sensing circuit; wherein the driving/scanning circuit sequentially drives the elongate conductive strips of the first conductive layer and at the time when the driving/scanning circuit sequentially drives one of the elongate conductive strips of the first conductive layer, the scan sensing circuit sequentially scans/detects the elongate conductive strips of the second conductive layer to detect a touch location occurring on the touch control panel. - View Dependent Claims (2, 3, 4, 5)
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6. A method for scanning/detecting a touch location in a touch control panel that comprises a first substrate forming a first conductive layer that comprises a plurality of elongate conductive strips that are parallel to but do not engage each other and extend in a first direction to form opposite first and second ends, and a second substrate forming a second conductive layer that comprises a plurality of elongate conductive strips that is parallel to but do not engage each other and extend in a second direction to form opposite first and second ends, the first and second substrates being spaced from each other by insulation spacers, the method comprising the following steps;
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(a) employing a driving/scanning circuit to drive one of the elongate conductive strips of the first conductive layer; (b) employing a scan sensing circuit to sequentially scan each elongate conductive strip of the second conductive layer; (c) detecting at least one touch location on each elongate conductive strips of the second conductive layer with respect to the one of the elongate conductive strips of the first conductive layer in accordance with result of scanning that the scan sensing circuit performs over the elongate conductive strips of the second conductive layer; (d) employing the driving/scanning circuit to sequentially drive a next one of the elongate conductive strips of the first conductive layer; (e) detecting at least one touch location on each elongate conductive strips of the second conductive layer with respect to each designated one of the elongate conductive strips of the first conductive layer in accordance with result of scanning that the scan sensing circuit performs over the elongate conductive strips of the second conductive layer; and (f) repeating steps (a) to (e). - View Dependent Claims (7, 8, 9, 10)
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Specification