Touch sensor with integrated signal bus extensions
First Claim
1. A touch sensor, comprising:
- a flexible substrate having opposing first and second surfaces, wherein the flexible substrate includes a main portion having a first edge with a first width and one or more extending portions having one or more widths less than the first width, the one or more extending portions extending from the first edge of the main portion;
capacitive touch sensor electrodes on the substrate; and
first and second signal lines that are coupled to the capacitive touch sensor electrodes and that extend along the one or more extending portions, wherein the one or more extending portions includes first and second sections, wherein the first section includes the first signal lines on the first surface and not the second signal lines on the first and second surfaces, and wherein the second section includes the second signal lines on the second surface and not the first signal lines on the second and first surfaces.
1 Assignment
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Accused Products
Abstract
A touch sensor may be formed from a flexible substrate such as a sheet of polymer. The flexible substrate may have a main rectangular portion and a protruding portion. Capacitive touch sensor electrodes may be formed on the upper and lower surfaces of the flexible substrate. Signal lines may be coupled to the touch sensor electrodes. The ends of the signal lines may extend onto the protruding portion. Signal lines may be formed on upper and lower surfaces of the flexible substrate. The signal lines may be coupled to circuitry on a printed circuit using a connector that receives the end of the protruding portion. Ground structures on the protruding portion may be configured to overlap the signal lines or may be laterally interposed between upper surface signal lines and lower surface signal lines.
24 Citations
16 Claims
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1. A touch sensor, comprising:
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a flexible substrate having opposing first and second surfaces, wherein the flexible substrate includes a main portion having a first edge with a first width and one or more extending portions having one or more widths less than the first width, the one or more extending portions extending from the first edge of the main portion; capacitive touch sensor electrodes on the substrate; and first and second signal lines that are coupled to the capacitive touch sensor electrodes and that extend along the one or more extending portions, wherein the one or more extending portions includes first and second sections, wherein the first section includes the first signal lines on the first surface and not the second signal lines on the first and second surfaces, and wherein the second section includes the second signal lines on the second surface and not the first signal lines on the second and first surfaces. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An electronic device, comprising:
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a housing; a display mounted in the housing; and a touch sensor that overlaps the display, wherein the touch sensor includes a flexible substrate having a main portion including a first edge with a first width, opposing first and second surfaces, first and second signal lines, and a plurality of separated extending portions having one or more widths less than the first width, the plurality of separated extending portions extending from the first edge; wherein a first extending portion of the plurality of separated extending portions includes the first signal lines on the first surface and not the second signal lines on the first and second surfaces, and wherein a second extending portion of the plurality of separated extending portions includes the second signal lines on the second surface and not the first signal lines on the second and first surfaces. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A touch sensor, comprising:
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a flexible polymer sheet having opposing first and second surfaces, wherein the flexible polymer sheet includes a main portion having a first edge with a first width and one or more protruding portions having one or more widths less than the first width, the one or more protruding portions protruding from the first edge; capacitive touch sensor electrodes on the flexible polymer sheet; and signal lines that are connected to the capacitive touch sensor electrodes and that extend onto the one or more protruding portions, wherein the signal lines include first signal lines on the first surface and second signal lines on the second surface, wherein the one or more protruding portions has a first section on which the first signal lines are formed on the first surface and not the second signal lines on the first and second surfaces, and a second section on which the second signal lines are formed on the second surface and not the first signal lines on the second and first surfaces, and wherein the first and second signal lines are non-overlapping. - View Dependent Claims (15, 16)
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Specification