University of Sussex
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JDLED: towards visio-tactile displays based on electrochemical locomotion of liquid-metal Janus droplets

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conference contribution
posted on 2023-06-09, 08:40 authored by Deepak Ranjan Sahoo, Timothy Neate, Yutaka Tokuda, Jennifer Pearson, Simon Robinson, Sriram Subramanian, Matt Jones
An actuated shape-changing interface with fast response and small pixel size using a liquid material can provide real time tangible interaction with the digital world in physical space. To this end, we demonstrate an interface that displays userdefined patterns dynamically using liquid metal droplets as programmable micro robots on a flat surface. We built a prototype using an array of embedded electrodes and a switching circuit to control the jump of the droplets from electrode to electrode. The actuation and dynamics of the droplets under the finger provides mild tactile feedback to the user. Our demo is the first to show a planar visio-tactile display using liquid metal, and is a first step to make shape-changing physical ephemeral widgets on a tabletop interface.


Breaking the Glass: Mutlimodal, Malleable Interactive Mobile surfaces for Hands-In Interactions; G1803; EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL; EP/N013948/1


Publication status

  • Published

File Version

  • Accepted version


UIST '17 The 30th Annual ACM Symposium on User Interface Software and Technology



Page range


Event name

30th Annual ACM Symposium on User Interface Software and Technology

Event location

Québec City, Canada

Event type


Event date

22-25 October 2017

Place of publication

New York, NY, USA



Department affiliated with

  • Informatics Publications

Full text available

  • Yes

Peer reviewed?

  • No

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First Open Access (FOA) Date


First Compliant Deposit (FCD) Date