Attracting Fingers with Waves: Potential Fields Using Active Lateral Forces Enhance Touch Interactions

要旨

Touchscreens and touchpads offer intuitive interfaces but provide limited tactile feedback, usually just mechanical vibrations. These devices lack continuous feedback to guide users’ fingers toward specific directions. Recent innovations in surface haptic devices, however, leverage ultrasonic traveling waves to create active lateral forces on a bare fingertip. This paper \revised{investigates the effects and design possibilities of active forces feedback in touch interactions by rendering artificial potential fields on a touchpad.Three user studies revealed that: (1) users perceived attractive and repulsive fields as bumps and holes with similar detection thresholds; (2) step-wise force fields improved targeting by 22.9% compared to friction-only methods; and (3) active force fields effectively communicated directional cues to the users. Several applications were tested, with user feedback favoring this approach for its enhanced tactile experience, added enjoyment, realism, and ease of use.

著者
Zhaochong Cai
Delft University of Technology, Delft, Netherlands
David Abbink
Delft University of Technology, Delft, Netherlands
Michael Wiertlewski
Delft University of Technology, Delft, Netherlands
DOI

10.1145/3706598.3714030

論文URL

https://dl.acm.org/doi/10.1145/3706598.3714030

動画

会議: CHI 2025

The ACM CHI Conference on Human Factors in Computing Systems (https://chi2025.acm.org/)

セッション: Sensing and Haptics

Annex Hall F204
7 件の発表
2025-04-30 18:00:00
2025-04-30 19:30:00
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