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EP3072169A1 MULTI-LAYER PIEZOELECTRIC POLYMER FILM DEVICES AND METHODS 有权
DEVICES AND METHOD FOR多层压电聚合物膜

MULTI-LAYER PIEZOELECTRIC POLYMER FILM DEVICES AND METHODS
摘要:
A touch panel includes a touch sensor having a dielectric core layer disposed between first and second piezoelectric layers. Each piezoelectric layer comprises a poled piezoelectric polymer. The touch sensor further includes at least a first set of individually addressable electrodes disposed over the first piezoelectric layer and at least one second electrode disposed over the second piezoelectric layer. Circuitry is coupled to the first set of electrodes and the second electrode. The circuitry is configured to detect a change in an electrical signal of at least one electrode of the first set of electrodes referenced to the second electrode in response to a touch applied to the touch surface of the touch sensor.
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