Gao, S;
Wu, L;
(2019)
Why Piezoelectric Based Force Sensing is not Successful in Interactive Displays?
IEEE Consumer Electronics Magazine
, 8
(4)
pp. 28-31.
10.1109/MCE.2019.2892264.
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Abstract
Piezoelectric based force sensing in interactive displays attracts worldwide attentions due to its intrinsic ability in efficiently converting mechanical energy to electric energy. However, commercialized piezoelectric based products have not been successfully occupying the market, mainly because of the unpleasant detection accuracy. To explain this phenomenon to readers, in this article, we investigate it through finite element analysis. The results reveal that the instable force-voltage responsivity and propagated stress from adjacent force touch locations are two key issues that strongly degrade detection accuracy.




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