Y. Liu (Germany)
Interaction techniques, rotactile feedback,
Current market-ready touchscreen technologies feature vibrotactile feedback to give users a sense of perceiving graphical controls physically. This study is aimed at investigating mechanical arrangements for displacement of tactile touchscreens, with a view to effectively exploiting the key features of the human sense of touch in order to maximize the usability of such touchscreens. The study provides quantitative research into user sensitivity to a touchscreen vibrating in three different directions: vertical, left-right horizontal and forward-backward horizontal. The study investigates the effects of the directions of mechanical vibrations presented to the finger as pulses. The results are intended to help designers select suitable vibration directions for tactile displays.
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