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US 9,071,249 B2Granted
Corrosion resistant touch sensor
AssigneeAtmel Corporation
InventorDavid Brent Guard
Life of this patent
Estimating the term…
Abstract
In one embodiment, a touch sensor includes a substrate. A plurality of conductive elements are formed on the substrate. A plurality of sacrificial conductive members overlay portions of the plurality of conductive elements. The sacrificial conductive members function as sacrificial anodes for the conductive elements.
Claims17
A touch sensor comprising:
- a substrate;
- a plurality of conductive elements formed on the substrate;
- and
- a plurality of sacrificial conductive members, each sacrificial conductive member of at least a subset of the plurality of sacrificial conductive members overlaying at least a portion of one or more conductive elements of the plurality of conductive elements, each sacrificial conductive member of the subset functioning as a sacrificial anode for at least one of the plurality of conductive elements, wherein
- the plurality of conductive elements include a plurality of tracks that couple a plurality of connection pads to a plurality of electrodes of the touch sensor;
- and
- the plurality of sacrificial conductive members overlay a plurality of first segments of the plurality of tracks, each first segment of a track disposed between a connection pad and an edge of an adhesive layer applied over the substrate and a second segment of the track.
4 more elements
A device comprising:
- a touch sensor comprising:
- a substantially transparent substrate;
- a plurality of conductive elements formed on the substantially transparent substrate, the conductive elements comprising fine lines of metal;
- a plurality of sacrificial conductive members, each sacrificial conductive member of at least a subset of the plurality of sacrificial conductive members overlaying at least a portion of one or more conductive elements of the plurality of conductive elements, each sacrificial conductive member of the subset functioning as a sacrificial anode for at least one of the plurality of conductive elements;
- a touch-sensor controller comprising one or more computer-readable storage media embodying logic that when executed is operable to control the touch sensor;
- and
- an electronic display overlaid by at least a portion of the touch sensor;
- wherein
- the plurality of conductive elements include a plurality of tracks that couple a plurality of connection pads to a plurality of electrodes of the touch sensor;
- and
- the plurality of sacrificial conductive members overlay a plurality of first segments of the plurality of tracks, each first segment of a track disposed between a connection pad and an edge of an adhesive layer applied over the substrate and a second segment of the track.
8 more elements
A touch sensor comprising:
- a substrate;
- a plurality of conductive elements formed on the substrate;
- a plurality of sacrificial conductive members, each sacrificial conductive member of at least a subset of the plurality of sacrificial conductive members overlaying at least a portion of one or more conductive elements of the plurality of conductive elements, each sacrificial conductive member of the subset functioning as a sacrificial anode for at least one of the plurality of conductive elements;
- and
- the plurality of sacrificial conductive members comprising sacrificial material placed at the end of a plurality of drive or sense lines of the touch sensor, each drive line coupled to a plurality of drive electrodes, each sense line coupled to a plurality of sense electrodes.
2 more elements
Dependencies are inferred from the claim text.