Ambient touch: designing tactile interfaces for handheld devices
Proceedings of the 15th annual ACM symposium on User interface software and technology
ComTouch: design of a vibrotactile communication device
DIS '02 Proceedings of the 4th conference on Designing interactive systems: processes, practices, methods, and techniques
A role for haptics in mobile interaction: initial design using a handheld tactile display prototype
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
BubbleWrap: a textile-based electromagnetic haptic display
CHI '09 Extended Abstracts on Human Factors in Computing Systems
A reconfigurable ferromagnetic input device
Proceedings of the 22nd annual ACM symposium on User interface software and technology
Shape-changing mobiles: tapering in one-dimensional deformational displays in mobile phones
Proceedings of the fourth international conference on Tangible, embedded, and embodied interaction
Interfaces beyond the surface: a structural approach to embodiment
CHI '10 Extended Abstracts on Human Factors in Computing Systems
Shape-changing mobiles: tapering in two-dimensional deformational displays in mobile phones
CHI '10 Extended Abstracts on Human Factors in Computing Systems
Grasp sensing for human-computer interaction
Proceedings of the fifth international conference on Tangible, embedded, and embodied interaction
A novel taxonomy for gestural interaction techniques based on accelerometers
Proceedings of the 16th international conference on Intelligent user interfaces
MorePhone: a study of actuated shape deformations for flexible thin-film smartphone notifications
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Morphees: toward high "shape resolution" in self-actuated flexible mobile devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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In this paper, we introduce the change of a mobile phone's hardware shape as a means of tactile interaction. The alteration of shape is implemented in a hardware prototype using a dynamic knob as an interaction device for the user. The knob alters the phone's shape according to different events and states, like incoming calls, new voice mail, or missed calls. Therefore, the user can explore the phone's status by touching it -- ambiently, even through the pocket. Initial user testing showed that this form of tactile interaction was easy to understand and handy to interact with, also for unexperienced users.