Piezoelectric vs. Capacitive Based Force Sensing in Capacitive Touch Panels

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 thickn...

תיאור מלא

מידע ביבליוגרפי
Main Authors: Shuo Gao, Victor Arcos, Arokia Nathan
פורמט: Article
שפה:English
יצא לאור: IEEE 2016-01-01
סדרה:IEEE Access
נושאים:
גישה מקוונת:https://ieeexplore.ieee.org/document/7513420/
תיאור
סיכום: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.
ISSN:2169-3536