Method of fabricating a card with piezo-powered indicator by printed electronics processes
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United States of America Patent
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Feb 24, 2015
Grant Date -
Jun 21, 2012
app pub date -
Dec 16, 2010
filing date -
Dec 16, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
An interactive card or the like employs a piezoelectric charge generator (piezo-strip) for temporarily driving an indicator. The piezo-strip may be displaced (bent) in order to generate charge to drive the indicator. Printed electronic processes are utilized to produce the indicator and/or the piezoelectric charge generator. An indicator is formed on a substrate by way of a printed electronics process. A displaceable region of piezoelectric material associated with the said substrate is formed by way of a printed electronics process. Electrical interconnections are formed on said substrate by way of a printed electronics process. The electrical interconnections connecting said indicator and said first region of piezoelectric material such that displacement of said first region of piezoelectric material generates a voltage therein that is provided to said indicator in order to actuate said indicator and thereby indicate the displacement of said first region of piezoelectric material.
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