Illuminated piezoelectric switch

Details Illuminated piezoelectric switch Illuminated piezoelectric switch

1997-06-27

1998-06-23

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310319, 310800, H01L 4108

Patent

active

057709149

ABSTRACT:
An illuminated switch assembly employs a piezoelectric film as both a transducer and a circuit substrate. Preferably some or all of the transducer portion of the film is light transmissive in order to facilitate illumination of the activation surface of the switch. Use of a piezoelectric film provides the ability to reduce or eliminate relatively moving parts, resulting in an increase of the useful life of the switch. Providing conductive traces, interconnection and circuitry mounted directly on the piezoelectric film reduces the need for interconnecting a number of different parts during assembly and/or manufacture and thus reduces the cost of the switch.

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