Touch position-sensing panel and method
First Claim
Patent Images
1. A touch position-sensing panel comprising:
- a sensing area;
a first electrode formed of a conductive material arranged in a first direction, the first electrode comprising a perimeter and one or more cut-out regions, the cut-out regions being defined by one or more corners; and
second electrodes formed of a conductive material arranged in a second direction different from the first direction such that the first and second electrodes form areas of overlap in the sensing area, at least one of the second electrodes comprising a branched portion extending in the first direction such that the branched portion forms an area of overlap with the first electrode;
wherein areas of overlap between the first electrode and the second electrodes define a first region of the panel and areas inside the perimeter of the first electrode but outside the areas of overlap between the first electrode and the second electrodes define a second region of the panel, and the one or more cut-out regions of the first electrode are formed only within the second region of the panel.
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Abstract
A touch position-sensing panel has electrodes arranged in different directions to form capacitive nodes, where at least one electrode has a corner within the perimeter of the electrode.
40 Citations
25 Claims
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1. A touch position-sensing panel comprising:
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a sensing area; a first electrode formed of a conductive material arranged in a first direction, the first electrode comprising a perimeter and one or more cut-out regions, the cut-out regions being defined by one or more corners; and second electrodes formed of a conductive material arranged in a second direction different from the first direction such that the first and second electrodes form areas of overlap in the sensing area, at least one of the second electrodes comprising a branched portion extending in the first direction such that the branched portion forms an area of overlap with the first electrode; wherein areas of overlap between the first electrode and the second electrodes define a first region of the panel and areas inside the perimeter of the first electrode but outside the areas of overlap between the first electrode and the second electrodes define a second region of the panel, and the one or more cut-out regions of the first electrode are formed only within the second region of the panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A touch position-sensing panel comprising:
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at least one substrate having a first surface and a second surface separated from the first surface; a plurality of first electrodes formed on the first surface, each first electrode comprising a perimeter and one or more cut-out regions, the cut-out regions being defined by one or more corners; a plurality of second electrodes formed on the second surface;
wherein;the first electrodes are comprised of a conductive material arranged in a first direction, the second electrodes are comprised of a conductive material arranged in a second direction such that the first and second electrodes form areas of overlap, at least one of the second electrodes comprises one or more branched portions extending in the first direction such that each branched portion forms an area of overlap with a first electrode, and areas of overlap between the first electrodes and the second electrodes define a first region of the panel and areas inside the perimeters of the first electrodes but outside the areas of overlap between the first electrodes and the second electrodes define a second region of the panel and the one or more cut-out regions of the first electrode are formed only within the second region of the panel. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of forming a touch position-sensing panel comprising steps of:
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forming a first conductive layer comprising a plurality of first electrodes formed of a transparent material, on a first surface of at least one substrate in a first direction, wherein each of the plurality of first electrodes comprises a perimeter and one or more cut-out regions, the cut-out regions being defined by one or more corners; and forming a second conductive layer comprising a plurality of second electrodes, on a second surface of the substrate in a second direction different from the first direction, such that the first and second electrodes form an area of overlap in a sensing area of the touch position-sensing panel, at least one of the second electrodes comprising one or more branched portions extending in the first direction such that each branched portion forms an area of overlap with a first electrode; wherein areas of overlap between the first electrodes and the second electrodes define a first region of the panel and areas inside the perimeters of the first electrodes but outside the areas of overlap between the first electrodes and the second electrodes define a second region of the panel and the one or more cut-out regions are formed only within the second region of the panel. - View Dependent Claims (24, 25)
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Specification