Abstract
Most users are not satisfied with the typing vibration feedback from linear motors of mobile phones since it feels like buzzing rather than physical key pressing feedback. For larger touchscreens, such as 10.1 inch tablets, there is no commercial tactile soft keyboard developed yet. Therefore, there is the need to develop a haptic soft keyboard technology imitating the physical keyboard for the tablet-sized touchscreen. In the present study, we present a new approach introducing an optimal design of a multilayered piezoelectric actuator that meets the need for a haptic soft keyboard for 10.1 inch tablets, implementing stronger tactile feedback that utilizes human sensitivity to time differences obtained by a psychophysical experiment and equalizes the force distribution of the touchscreen when using multiple piezoelectric actuators. The developed system was evaluated by a user study measuring typing performance.
| Original language | English |
|---|---|
| Article number | 3080 |
| Journal | Applied Sciences (Switzerland) |
| Volume | 9 |
| Issue number | 15 |
| DOIs | |
| Publication status | Published - 1 Aug 2019 |
Bibliographical note
Publisher Copyright:© 2019 by the authors.
Keywords
- Haptic feedback
- Haptic soft keyboard
- Mobile input device
- Soft keyboard
- Tablet touchscreen
- Tactile perception
- User interface