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Journal Article Highly pixelated, untethered tactile interfaces for an ultra-flexible on-skin telehaptic system
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Authors
Hanbit Jin, Yunjeong Kim, Wooseup Youm, Yulim Min, Saerom Seo, Chaehyun Lim, Chan-Hwa Hong, Seyoung Kwon, Gyeongseok Park, Steve Park, Hye Jin Kim
Issue Date
2022-09
Citation
NPJ FLEXIBLE ELECTRONICS, v.6, pp.1-11
ISSN
2397-4621
Publisher
NATURE PORTFOLIO
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1038/s41528-022-00216-1
Abstract
Realizing highly immersive tactile interactions requires a skin-integrated, untethered, high-definition tactile transducer devices that can record and generate tactile stimuli. However, the rigid and bulky form factor, and insufficient resolution of existing actuators are hindering the reproduction of sophisticated tactile sensations and immersive user experiences. Here, we demonstrate an ultra-flexible tactile interface with high spatial resolution of 1.8 mm for telehaptic communication on human skin. Dual mechanism sensors and sub-mm scale piezoceramic actuators are designed to record and generate the static and dynamic pressures in a wide frequency range (1 Hz to 1 kHz). Moreover, actuators are integrated on ultra-flexible substrate with chessboard pattern to minimize stress during mechanical deformations. Finally, remote transmissions of various tactile stimuli, such as shapes, textures, and vibration patterns were demonstrated by the telehaptic system with low latency (<1.55 ms) and high fidelity as proven by the short-time Fourier-transform analysis.
KSP Keywords
Dynamic pressures, Flexible substrate, Form factor, High definition, High spatial resolution, High-fidelity, Low latency, Static and dynamic, Tactile interaction, Tactile interface, Tactile stimuli
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
CC BY