Transparent wearable three-dimensional touch by self-generated multiscale structure

Kyun Kyu Kim, InHo Ha, Philip Won, Deog-Gyu Seo (), Kyu-Jin Cho and Seung Hwan Ko ()
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Kyun Kyu Kim: Seoul National University
InHo Ha: Seoul National University
Philip Won: Seoul National University
Deog-Gyu Seo: Seoul National University
Kyu-Jin Cho: Seoul National University
Seung Hwan Ko: Seoul National University

Nature Communications, 2019, vol. 10, issue 1, 1-8

Abstract: Abstract Pressure-sensitive touch panels can measure pressure and location (3D) information simultaneously and provide an intuitive and natural method for expressing one’s intention with a higher level of controllability and interactivity. However, they have been generally realized by a simple combination of pressure and location sensor or a stylus-based interface, which limit their implementation in a wide spectrum of applications. Here, we report a first demonstration (to our knowledge) of a transparent and flexible 3D touch which can sense the 3D information in a single device with the assistance of functionally designed self-generated multiscale structures. The single 3D touch system is demonstrated to draw a complex three-dimensional structure by utilizing the pressure as a third coordinate. Furthermore, rigorous theoretical analysis is carried out to achieve the target pressure performances with successful 3D data acquisition in wireless and wearable conditions, which in turn, paves the way for future wearable devices.

Date: 2019
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DOI: 10.1038/s41467-019-10736-6

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