UIST 2015 - GelTouch: Localized Tactile Feedback Through Thin, Programmable Gel





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Published on Apr 3, 2016

UIST 2015 - GelTouch: Localized Tactile Feedback Through Thin, Programmable Gel
Viktor Miruchna, Robert Walter, David Lindlbauer, Maren Lehmann, Regine von Klitzing, Jörg Müller

UIST '15: Proceedings of the 28th Annual ACM Symposium on User Interface Software & Technology
Sesssion: Tactile Feedback

"We present GelTouch, a gel-based layer that can selectively transition between soft and stiff to provide tactile multi-touch feedback. It is flexible, transparent when not activated, and contains no mechanical, electromagnetic, or hydraulic components, resulting in a compact form factor (a 2mm thin touchscreen layer for our prototype). The activated areas can be morphed freely and continuously, without being limited to fixed, predefined shapes. GelTouch consists of a poly(N-isopropylacrylamide) gel layer which alters its viscoelasticity when activated by applying heat (greater than32 C). We present three different activation techniques: 1) Indium Tin Oxide (ITO) as a heating element that enables tactile feedback through individually addressable taxels; 2) predefined tactile areas of engraved ITO, that can be layered and combined; 3) complex arrangements of resistance wire that create thin tactile edges. We present a tablet with 6x4 tactile areas, enabling a tactile numpad, slider, and thumbstick. We show that the gel is up to 25 times stiffer when activated and that users detect tactile features reliably (94.8%)."

DOI:: http://dx.doi.org/10.1145/2807442.280...
WEB:: http://uist.acm.org/uist2015/

Recorded at 28th ACM User Interface Software and Technology Symposium in Charlotte, NC, USA, November 8-11, 2015


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