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KEYBOARD ARRAY Disclosure Number: IPCOM000023227D
Original Publication Date: 1977-Feb-28
Included in the Prior Art Database: 2004-Mar-29

Publishing Venue

Xerox Disclosure Journal


A typewriter-like keyboard is suggested which utilizes the piezoelectric and/or the pyroelectric properties of poled polyvinylidene fluoride films (PVF2), Poled and aluminized PVF2 films are observed to generate a voltage when pressure is applied between the aluminum coating and the film.