SINGLE-LAYER TOUCH SENSORS
First Claim
1. A two-dimensional capacitive sensor device comprising:
- a first sensor electrode having a varying width along a first direction, a maximum width at a first edge along said first direction, and a minimum width at a second edge along said first direction;
a second sensor electrode having a varying width along said first direction and substantially identical widths at said first edge and at said second edge;
a third sensor electrode having a varying width along said first direction, a minimum width at said first edge, and a maximum width at said second edge;
wherein said first sensor electrode, said second sensor electrode, and said third sensor electrode are arranged in a first sensor cell;
wherein said second sensor electrode is disposed between said first sensor electrode and said third sensor electrode in the arrangement of said first sensor cell;
wherein said first sensor electrode, said second sensor electrode, and said third sensor electrode have substantially equal surface area; and
wherein said two-dimensional capacitive sensor device comprises a plurality of sensor cells disposed in a repeated fashion in a single layer.
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Accused Products
Abstract
A two-dimensional capacitive sensor device comprises first, second, and third sensor electrodes. The first sensor electrode has a varying width along a first direction, a maximum width at a first edge along the first direction, and a minimum width at a second edge along the first direction. The second sensor electrode has a varying width along the first direction and substantially identical widths at the first edge and second edge. The third sensor electrode has a varying width along the first direction, a minimum width at the first edge, and a maximum width at the second edge. The first, second, and third sensor electrodes have substantially equal surface area and are arranged in a first sensor cell with the second disposed between the first and third sensor electrodes. The two-dimensional capacitive sensor device comprises a plurality of sensor cells disposed in a repeated fashion in a single layer.
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Citations
24 Claims
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1. A two-dimensional capacitive sensor device comprising:
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a first sensor electrode having a varying width along a first direction, a maximum width at a first edge along said first direction, and a minimum width at a second edge along said first direction; a second sensor electrode having a varying width along said first direction and substantially identical widths at said first edge and at said second edge; a third sensor electrode having a varying width along said first direction, a minimum width at said first edge, and a maximum width at said second edge; wherein said first sensor electrode, said second sensor electrode, and said third sensor electrode are arranged in a first sensor cell; wherein said second sensor electrode is disposed between said first sensor electrode and said third sensor electrode in the arrangement of said first sensor cell; wherein said first sensor electrode, said second sensor electrode, and said third sensor electrode have substantially equal surface area; and wherein said two-dimensional capacitive sensor device comprises a plurality of sensor cells disposed in a repeated fashion in a single layer. - View Dependent Claims (2, 3)
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4. A two-dimensional capacitive sensor device comprising:
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a first sensor electrode having at least four linear sides and a varying width along a first direction; a second sensor electrode having at least four linear sides and a varying width along said first direction; and a third sensor electrode having at least four linear sides and a varying width along said first direction, wherein said first sensor electrode, said second sensor electrode, and said third sensor electrode are arranged in a first sensor cell; wherein said two-dimensional capacitive sensor device comprises a plurality of sensor cells disposed in a repeated fashion in a single layer. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A two-dimensional capacitive sensor device comprising:
a first sensor cell, said first sensor cell comprising; a first sensor electrode having at least four linear sides; a second sensor electrode having at least four linear sides; and a third sensor electrode having at least four linear sides, wherein said first sensor electrode, said second sensor electrode, and said third sensor electrode are arranged in said first sensor cell such that said first sensor cell has 180 degree rotational symmetry about a midpoint of said first sensor cell. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A method for creating a sensor array of a two-dimensional capacitive sensor device, said method comprising:
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forming on a sensor substrate a first sensor electrode having at least four linear sides and a varying width along a first direction; forming on said sensor substrate a second sensor electrode having at least four linear sides and a varying width along said first direction; and forming on said sensor substrate a third sensor electrode having at least four linear sides and a varying width along said first direction, wherein said first sensor electrode, said second sensor electrode, and said third sensor electrode are arranged in a first sensor cell of said sensor array. - View Dependent Claims (24)
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Specification