Resistive touch sensor having microstructured conductive layer
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United States of America Patent
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Mar 28, 2006
Grant Date -
Jan 22, 2004
app pub date -
Jul 17, 2002
filing date -
Jul 17, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention discloses resistive touch sensors that incorporate microstructured conductive layers. When local electrical contact is made between the microstructured conductive layer and an opposing conductive layer due to a touch input, the resulting signal can be used to determine the location of the touch. The microstructures can be used to penetrate a solid, deformable filler material disposed between the conductive layers, for example to provide more transmission of light through the sensor. The microstructures can also provide additional functionalities such as z-axis sensitivity, image direction, light control, light extraction, and so forth.
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