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MagneShape: A pin-based display using magnetismNon-electrical control of magnetic pins shows various shapes 
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Pin-based shape-changing displays provide dynamic shape changes by actuating numerous pins. However, as long as an electric motor is used as an actuator for each pin, the mechanical structure and wiring path become more complex as the pin array size increases. The development of such devices requires in-depth knowledge of engineering and considerable resources. We therefore propose a simple pin-based shape-changing display that outputs shapes and motions without any electronic components. Our magnetically actuated pin-based shape-changing display consists of magnetic pins, a pin housing, and a magnetic sheet. It is easy to build, easy to control, and can display characters, waves, and rapid motions without any linear actuators. We believe this new technology will expand the possibilities for 3D presentation and tactile interaction in homes, schools, and small offices, leading to a richer and greener information technology in the future.
[1] K. Yasu, “MagneShape: a non-electrical pin-based shape-changing display,” in Proc. The 35th Annual ACM Symposium on User Interface Software and Technology (UIST '22), 2022.
Kentaro Yasu
Sensory Interface Research Group, Human Information Science Laboratory