Piezoelectric or pyroelectric polymer input element for use as a

Details Piezoelectric or pyroelectric polymer input element for use as a Piezoelectric or pyroelectric polymer input element for use as a

1979-04-10

1980-11-18

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310339, 310800, 340365A, H01L 4108, H01L 4118

Patent

active

042348137

ABSTRACT:
An input element for use as a transducer in keyboards is disclosed, which utilizes a polymeric material having piezoelectric or pyroelectric property as a stimulus-receiving portion of the element. The element has a plurality of stimulus-receiving portions. One face of each of stimulus-receiving portions has mutually independent electrodes, of which one is for detecting signal and another is for earthing, and another face of each stimulus-receiving portions has mutually independent electrodes, of which one is for detecting signal and another is for earthing. The signal-detecting electrode on the one face is disposed corresponding to the earthing electrode on the another face.

REFERENCES:
patent: 3648279 (1972-03-01), Watson
patent: 3699294 (1972-10-01), Sudduth
patent: 3931446 (1976-01-01), Murayama
patent: 3935485 (1976-01-01), Yoshida et al.
patent: 3940637 (1976-02-01), Ohigashi et al.

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