CUED Publications database

Piezoelectric vs. Capacitive Based Force Sensing in Capacitive Touch Panels

Gao, S and Arcos, V and Nathan, A (2016) Piezoelectric vs. Capacitive Based Force Sensing in Capacitive Touch Panels. IEEE Access, 4. pp. 3769-3774.

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Abstract

© 2016 IEEE. High sensitivity force sensing is a desirable function of capacitance touch screen panels. In this paper, we report on a dynamic force detection technique by utilizing piezoelectric materials. The force-voltage responsivities are investigated for four widely used stack-ups, with various panel thicknesses and touch locations. Based on the theoretical analysis and simulation results, the maximum responsivity and the signal-to-noise ratio are achieved at 0.42 V/N and 59.1 dB, respectively. The proposed technique implements force sensing successfully, enhancing the human-machine interactivity experience.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:23
Last Modified: 14 Nov 2017 02:20
DOI: