An Exploration on Mobile Shape-Changing Textures

Eve Hoggan, Yi-Ta Hsieh, Kalle Myllymaa, Vuokko Lantz, Johan Kildal, Julian Eiler, Giulio Jacucci

Research output: Conference materialsPosterpeer-review


This paper describes the development and evaluation of Undulating Covers (UnCovers), mobile interfaces that can change their surface texture to transmit information. The Pin Array UnCover incorporates sinusoidal ridges controlled by servomotors, which can change their amplitude and granularity. The Mylar UnCover is a more organic interface that exploits the buckling properties of Mylar, using muscle wires, to change the texture granularity. The prototype development process and evaluations showed that very low frequency texture changes, using amplitude or granularity, can be distinguished with high levels of accuracy. Since small changes are perceptible, it is possible to incorporate such interfaces into mobile devices without drastically increasing their size or actuation requirements. Finally, ratings from participants indicate that UnCovers would be most appropriate for attention-grabbing, or caring and supportive interpersonal messages.
Original languageEnglish
Publication statusPublished - 20 Mar 2017
EventACM International conference on Tangible, Embedded and Embodied Interaction - Yokohama, Japan
Duration: 20 Mar 201723 Mar 2017


ConferenceACM International conference on Tangible, Embedded and Embodied Interaction

Bibliographical note

Demos and Posters

Fields of Science

  • 113 Computer and information sciences

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