Audio-Tactile Skinny Buttons for Touch User Interfacesopen access
- Authors
- Van Duong, Q.; Nguyen, V.P.; Luu, A.T.; Choi, S.T.
- Issue Date
- Sep-2019
- Publisher
- NLM (Medline)
- Citation
- Scientific reports, v.9, no.1
- Journal Title
- Scientific reports
- Volume
- 9
- Number
- 1
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/38787
- DOI
- 10.1038/s41598-019-49640-w
- ISSN
- 2045-2322
- Abstract
- This study proposes a novel skinny button with multimodal audio and haptic feedback to enhance the touch user interface of electronic devices. The active material in the film-type actuator is relaxor ferroelectric polymer (RFP) poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) [P(VDF-TrFE-CFE)] blended with poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)], which produces mechanical vibrations via the fretting vibration phenomenon. Normal pressure applied by a human fingertip on the film-type skinny button mechanically activates the locally concentrated electric field under the contact area, thereby producing a large electrostrictive strain in the blended RFP film. Multimodal audio and haptic feedback is obtained by simultaneously applying various electric signals to the pairs of ribbon-shaped top and bottom electrodes. The fretting vibration provides tactile feedback at frequencies of 50-300 Hz and audible sounds at higher frequencies of 500 Hz to 1 kHz through a simple on-off mechanism. The advantage of the proposed audio-tactile skinny button is that it restores the click sensation to the popular virtual touch buttons employed in contemporary electronic devices.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Mechanical Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.