Conventional Haptic Devices
Fretting – Vibration Principle
1) Voltage application between The Top electrode and The Bottom electrode
2) When the finger presses on the cover, the piezoelectric polymer will make contact with the Bottom electrode.
3) Local electric field generation
4) The piezoelectric polymer shrinks and expands
5) Generating an electric field changes due to changes in the contact area
6) Piezoelectric polymer vibration amplification
The Fretting vibration will be able to Maximize vibration by optimizing the protective film of the piezoelectric polymer membrane, the thickness
of the cover, the size and spacing of the dot spacer, the thickness of the piezoelectric polymer film.
Advantages of Film Vibrators
Design of Transparent Film Vibrator
Haptic Button Device
