Single-layer touch-sensitive display
First Claim
1. A touch sensor panel, comprising:
- a plurality of patterns of conductive material disposed along a first direction, formed on a single layer and supported on one side of a substrate; and
a plurality of distinct patches of the conductive material supported on the same side of the substrate as the plurality of patterns of conductive material, the plurality of distinct patches disposed in substantially the same single layer, and plural groups of the plurality of distinct patches disposed along a second direction, different from the first direction, the distinct patches in a particular group connected together via at least one of a plurality of conductor traces;
wherein at least sections of the plurality of distinct patches are separate from, non-overlapping with, and adjacent to sections of the plurality of patterns of conductive material such as to form a substantially co-planar, single layer array of mutual capacitance sensors, each mutual capacitance sensor responsive to a fringing electric field between a section of one of the plurality of distinct patches and an adjacent, non-overlapping, co-planar section of one of the plurality of patterns of conductive material; and
wherein;
the plurality of patterns of conductive material disposed along the first direction is configured as one of a drive line or a sense line for the array of mutual capacitance sensors, and the plurality groups of the plurality of distinct patches disposed along the second direction is configured as the other of the drive line or the sense line for the substantially co-planar, single layer array of mutual capacitance sensors; and
in operation, the drive lines driven with one or more stimulation signals to establish the fringing electric field for coupling charge onto the sense lines.
1 Assignment
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Accused Products
Abstract
A touch sensor panel having co-planar single-layer touch sensors fabricated on a single side of a substrate is disclosed. The drive and sense lines can be fabricated as column-like patterns in a first orientation and patches in a second orientation, where each column-like pattern in the first orientation is connected to a separate metal trace in the border area of the touch sensor panel, and all patches in each of multiple rows in the second orientation are connected together using a separate metal trace in the border area of the touch sensor panel. The metal traces in the border areas can be formed on the same side of the substrate as the patches and columns, but separated from the patches and column-like patterns by a dielectric layer.
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Citations
34 Claims
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1. A touch sensor panel, comprising:
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a plurality of patterns of conductive material disposed along a first direction, formed on a single layer and supported on one side of a substrate; and a plurality of distinct patches of the conductive material supported on the same side of the substrate as the plurality of patterns of conductive material, the plurality of distinct patches disposed in substantially the same single layer, and plural groups of the plurality of distinct patches disposed along a second direction, different from the first direction, the distinct patches in a particular group connected together via at least one of a plurality of conductor traces; wherein at least sections of the plurality of distinct patches are separate from, non-overlapping with, and adjacent to sections of the plurality of patterns of conductive material such as to form a substantially co-planar, single layer array of mutual capacitance sensors, each mutual capacitance sensor responsive to a fringing electric field between a section of one of the plurality of distinct patches and an adjacent, non-overlapping, co-planar section of one of the plurality of patterns of conductive material; and wherein; the plurality of patterns of conductive material disposed along the first direction is configured as one of a drive line or a sense line for the array of mutual capacitance sensors, and the plurality groups of the plurality of distinct patches disposed along the second direction is configured as the other of the drive line or the sense line for the substantially co-planar, single layer array of mutual capacitance sensors; and in operation, the drive lines driven with one or more stimulation signals to establish the fringing electric field for coupling charge onto the sense lines. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 30, 31, 32)
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16. A method for forming a touch sensor panel, comprising:
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forming a plurality of column-like patterns of conductive material disposed in a first direction on a single layer on one side of a substrate; forming a plurality of distinct patches of the conductive material on the same side of the substrate as the plurality of column-like patterns of conductive material and disposed in substantially the same single layer as the plurality of column-like patterns, arranging the plurality of distinct patches into in a plurality of rows; providing a plurality of conductor traces; connecting distinct patches in a particular row together via at least one of the plurality of conductor traces; forming a substantially co-planar, single layer array of mutual capacitance sensors from at least sections of the plurality of distinct patches together with sections of the plurality of column-like patterns of conductive material, the at least sections of the plurality of distinct patches being separate from, non-overlapping with, and adjacent to the sections of the plurality of column-like patterns of conductive material; and configuring drive lines from one of the plurality of column-like patters or the plurality of distinct patches and configuring sense lines from the other of the plurality of column-like patters or the plurality of distinct patches. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A mobile telephone including a touch sensor panel, the touch sensor panel comprising:
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a plurality of patterns of conductive material disposed along a first direction, formed on a single layer and supported on one side of a substrate; and a plurality of distinct patches of the conductive material supported on the same side of the substrate as the plurality of patterns of conductive material, the plurality of distinct patches disposed in substantially the same single layer, and plural groups of the plurality of distinct patches disposed along a second direction, different from the first direction, the distinct patches in a particular group connected together via at least one of a plurality of conductor traces; wherein at least sections of the plurality of distinct patches are separate from, non-overlapping with, and adjacent to sections of the patterns of conductive material such as to form a substantially co-planar, single layer array of mutual capacitance sensors; and wherein the plurality of patterns of conductive material disposed along the first direction is configured as one of a drive line or a sense line for the array of mutual capacitance sensors, and the plurality groups of the plurality of distinct patches disposed along the second direction is configured as the other of the drive line or the sense line for the array of mutual capacitance sensors.
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29. A digital media player including a touch sensor panel, the touch sensor panel comprising:
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a plurality of patterns of conductive material disposed along a first direction, formed on a single layer and supported on one side of a substrate; and a plurality of distinct patches of the conductive material supported on the same side of the substrate as the plurality of patterns of conductive material, the plurality of distinct patches disposed in substantially the same single layer, and plural groups of the plurality of distinct patches disposed along a second direction, different from the first direction, the distinct patches in a particular group connected together via at least one of a plurality of conductor traces; wherein at least sections of the plurality of distinct patches are separate from, non-overlapping with, and adjacent to sections of the plurality of patterns of conductive material such as to form a substantially co-planar, single layer array of mutual capacitance sensors; and wherein the plurality of patterns of conductive material disposed along the first direction is configured as one of a drive line or a sense line for the array of mutual capacitance sensors, and the plurality groups of the plurality of distinct patches disposed along the second direction is configured as the other of the drive line or the sense line for the array of mutual capacitance sensors.
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33. A touch sensor panel, comprising:
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a plurality of columns of a conductive material formed on a single layer and supported on one side of a substrate; a plurality of patches of the conductive material supported on the same side of the substrate as the plurality of columns, the plurality of patches formed on the same layer as the plurality of columns adjacent to the plurality of columns and arranged in a plurality of rows, each patch in a particular row connected together in a border area of the touch sensor panel but isolated from each other in a central area of the touch sensor panel; one of the plurality of columns of conductive material and the plurality of rows configured as drive lines and the other of the plurality of columns of conductive material and the plurality of rows configured as sense line; and wherein; portions of the plurality of patches and portions of the plurality of columns configured as a co-planar, single layer, array of mutual capacitance sensors, each mutual capacitance sensor responsive to a fringing electric field between the portion of one of the plurality of patches and an adjacent, non-overlapping, co-planar portion of one of the plurality of patterns of conductive material; and the drive lines driven with one or more stimulation signals thereby establishing the fringing electric fields for coupling charge onto the sense lines.
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34. A touch sensor panel, comprising:
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a plurality of columns of a conductive material formed on a single layer and supported on one side of a substrate; a plurality of distinct patches of the conductive material supported on the same side of the substrate as the plurality of columns, the plurality of distinct patches formed on the same layer as the plurality of columns adjacent to the plurality of columns and arranged in a plurality of rows; one of the plurality of columns of conductive material and the plurality of rows configured as drive lines and the other of the plurality of columns of conductive material and the plurality of rows configured as sense line; and wherein; portions of the plurality of distinct patches and portions of the plurality of columns configured as a co-planar, single layer, array of mutual capacitance sensors, each mutual capacitance sensor responsive to a fringing electric field between the portion of one of the plurality of distinct patches and an adjacent, non-overlapping, co-planar portion of one of the plurality of patterns of conductive material; and the drive lines configured to be driven with one or more stimulation signals thereby establishing the fringing electric fields for coupling to the sense lines.
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Specification