Open AccessInteractive Skin Display with Epidermal Stimuli Electrode
Author(s) -
Kim Eui Hyuk,
Han Hyowon,
Yu Seunggun,
Park Chanho,
Kim Gwangmook,
Jeong Beomjin,
Lee Seung Won,
Kim Jong Sung,
Lee Seokyeong,
Kim Joohee,
Park JangUng,
Shim Wooyoung,
Park Cheolmin
Publication year - 2019
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201802351
Subject(s) - materials science , human skin , electrode , computer science , electrochromism , electronics , electronic skin , biomedical engineering , optoelectronics , chemistry , electrical engineering , engineering , genetics , biology
In addition to the demand for stimuli‐responsive sensors that can detect various vital signals in epidermal skin, the development of electronic skin displays that quantitatively detect and visualize various epidermal stimuli such as the temperature, sweat gland activity, and conductance simultaneously are of significant interest for emerging human‐interactive electronics used in health monitoring. Herein, a novel interactive skin display with epidermal stimuli electrode (ISDEE) allowing for the simultaneous sensing and display of multiple epidermal stimuli on a single device is presented. It is based on a simple two‐layer architecture on a topographically patterned elastomeric polymer composite with light‐emitting inorganic phosphors, upon which two electrodes are placed with a certain parallel gap. The ISDEE is directly mounted on human skin, which by itself serves as a field‐responsive floating electrode of the display operating under an alternating current (AC). The AC field exerted on the epidermal skin layer depends on the conductance of the skin, which can be modulated based on a variety of physiological skin factors, such as the temperature, sweat gland activity, and pressure. Conductance‐dependent field‐induced electroluminescence is achieved, giving rise to an on‐hand sensing display platform where a variety of human information can be directly sensed and visualized.