Capacitive touch panel with multiple zones
First Claim
1. A capacitive touch panel, comprising:
- a substrate comprising a plurality of touch zones; and
a touch sensing unit disposed on the substrate, the touch sensing unit comprising;
a plurality of first sensing elements disposed in the touch zones, each first sensing element arranged in a first direction for defining a first coordinate;
a plurality of second sensing elements disposed in the touch zones, each second sensing element arranged in a second direction for defining a second coordinate; and
a plurality of zone sensing elements, each zone sensing element disposed in a corresponding one of touch zones for defining a zone coordinate.
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Abstract
In a capacitive touch panel having touch cells arranged in a two-dimensional array and defined by two coordinates, the present invention provides a third coordinate. In particular, the touch cells in a row are electrically connected a first sensing element and the touch cells in a column are electrically connected in a second sensing element. The first sensing elements can be arranged into two or more touch zones. Each of the touch zones has a zone sensing element for defining the zone coordinate. Some of the first sensing elements in one touch zone are electrically connected to the corresponding first sensing elements in the other touch zones in series. As such, the number of terminals connected to the first sensing elements can be reduced.
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Citations
20 Claims
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1. A capacitive touch panel, comprising:
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a substrate comprising a plurality of touch zones; and a touch sensing unit disposed on the substrate, the touch sensing unit comprising; a plurality of first sensing elements disposed in the touch zones, each first sensing element arranged in a first direction for defining a first coordinate; a plurality of second sensing elements disposed in the touch zones, each second sensing element arranged in a second direction for defining a second coordinate; and a plurality of zone sensing elements, each zone sensing element disposed in a corresponding one of touch zones for defining a zone coordinate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for use in a capacitive touch panel, the touch panel comprising:
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a substrate; a touch sensing unit disposed on the substrate, the touch sensing unit comprising; a plurality of first sensing elements, each first sensing element arranged in a first direction for defining a first coordinate; a plurality of second sensing elements, each second sensing element arranged in a second direction for defining a second coordinate, said method comprising; arranging the substrate into a first touch zone and a second touch zone; arranging the plurality of first sensing elements into a first group of first sensing elements and a second group of first sensing elements, the first group located in the first touch zone and the second ground located in the second touch zone; electrically connecting at least some of the first sensing elements in the first group to corresponding ones of the first sensing elements in the second group in series; and providing a first zone sensing element in the first touch zone for defining a first zone coordinate and a second zone sensing element in the second touch zone for defining a second zone coordinate. - View Dependent Claims (17, 18, 19, 20)
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Specification