Skin-integrated systems for power efficient, programmable thermal sensations across large body areas

Minsu Park, Jae Young Yoo, Tianyu Yang, Yei Hwan Jung, Abraham Vázquez-Guardado, Shupeng Li, Jae Hwan Kim, Jaeho Shin, Woo Youl Maeng, Geumbee Lee, Seonggwang Yoo, Haiwen Luan, Jin Tae Kim, Hee Sup Shin, Matthew T. Flavin, Hong Joon Yoon, Nenad Miljkovic, Yonggang Huang, William P. King*, John A. Rogers*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Thermal sensations contribute to our ability to perceive and explore the physical world. Reproducing these sensations in a spatiotemporally programmable manner through wireless computer control could enhance virtual experiences beyond those supported by video, audio and, increasingly, haptic inputs. Flexible, lightweight and thin devices that deliver patterns of thermal stimulation across large areas of the skin at any location of the body are of great interest in this context. Applications range from those in gaming and remote socioemotional communications, to medical therapies and physical rehabilitation. Here, we present a set of ideas that form the foundations of a skin-integrated technology for power-efficient generation of thermal sensations across the skin, with real-time, closed-loop control. The systems exploit passive cooling mechanisms, actively switchable thermal barrier interfaces, thin resistive heaters and flexible electronics configured in a pixelated layout with wireless interfaces to portable devices, the internet and cloud data infrastructure. Systematic experimental studies and simulation results explore the essential mechanisms and guide the selection of optimized choices in design. Demonstration examples with human subjects feature active thermoregulation, virtual social interactions, and sensory expansion.

Original languageEnglish (US)
Article numbere2217828120
JournalProceedings of the National Academy of Sciences of the United States of America
Volume120
Issue number6
DOIs
StatePublished - Feb 7 2023

Keywords

  • bioelectronics
  • virtual reality
  • wearable

ASJC Scopus subject areas

  • General

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