The keyboard based on polu00cdmero, Co polu00cdmero or compu00d3sito with piezoresistive properties and their uses and / or piroelu00c9ctricas

摘要

The invenu00c7u00c3o refers to a new keyboard based on a film (11) polimu00c9rico, Co polu00cdmerico or compu00d3sito properties of piezo - and piroelu00c9ctricas touch screen capable of receiving a signal and provide an answer in the form of an electrical signal.The system of the present invenu00c7u00c3o includes one or more keys (10), each constituu00cdda for a movie piezoelu00c9ctrico (11) with electrical contacts conductive, transparent or not, at the top and bottom of the film and a lower layer of the electrode mass (13).This invenu00c7u00c3o allows the use of only one film piezoelu00c9ctrico (11) without external consumption, the use of links to elu00c9ctrodos that form the keys (10) that converge on one side of the keyboard and are available in points (12) to perform the connection circuit The filters assets instead of AMPs in the electronic reading.As well as the possibility of introduction of these keyboards, new features, similar to those of tactile sensors, by the distinction between a signal piroelu00c9ctrico and piezoelu00c9ctrico of a key in particular, differentiating the signals generated by the effect of pressure and by changes in temperatu RA.