"적에게 보이지 않는 '인공피부' 웨어러블" 한국 연구팀 VIDEO:‘Artificial skin’ that gives soldiers the power of invisibility on the battlefield uses pixelized screens which autonomously heat or cool to mimic the environment

‘Artificial skin’ that gives soldiers the power of invisibility on the battlefield uses pixelized screens which autonomously heat or cool to mimic the environment

New artificial skin gives soldiers the power of invisibility on the battlefield and makes them undetectable to thermal imaging cameras 

Researchers have designed a type of cloaking skin that provides invisibility 

Designed as patches, the device is made if individual pixelized screens

The screens gather data of the surrounding temperatures to change 

They autonomously change from red, green to blue to provide camouflage  

By STACY LIBERATORE FOR DAILYMAIL.COM

PUBLISHED: 22:10 GMT, 7 December 2020 | UPDATED: 22:20 GMT, 7 December 2020

적에게 보이지 않는 '인공피부' 웨어러블   새로운 인공 피부는 군인들에게 전쟁터에서 보이지 않는 힘을 주고 열화상 카메라로 그들을 탐지할 수 없게 만든다. 한국 연구진이 한 곳에서 다른 곳으로 단 5초 만에 바꿀 수 있는 주변 환경의 색깔을 흉내내기 위해 발열과 냉각을 활성화하는 피부 덮개를 개발했다. 패치로 디자인된 이 웨어러블은 화소화질 스크린으로 제작된 열색소 액정화면을 사용해 주변부에 빠르게 반응하고 다경사 범위에서 사람의 피부를 감춰준다. 패치는 현재 초기 단계지만, 이 장치들이 주변 지역에 자율적으로 대응할 수 있는 특수 마이크로 카메라를 사용한다고 말했다 어떤 배경에도 숨는 세팔로포드의 비범한 능력은 적외선과 가시 스펙트럼에서 쉽게 위장할 수 있는 흥미로운 능력을 연구자들이 재현하도록 고무시켰지만, 이것은 여전히 난제로 남아 있다'고 고급 기능성 소재지에 게재된 연구는 말한다. '이 연구에서는 유연한 2기능 기기(능동 냉각 및 가열)로 간단한 온도 조절만으로 IR-visible 통합 스펙트럼 양쪽의 배경과 사람의 피부가 활발하게 혼합될 수 있는 다극성 지각하지 않는 피부가 개발된다.' 패치는 구부릴 수 있고 피부의 다양한 곡률에 부합해 사용자가 인공피부로 착용할 수 있다. 픽셀화 된 화면은 패치에 선을 긋고 역방향 전류를 가하여 열을 식히거나 가열하는 열전(TE) 장치로 구성된다. 황기철 콘페이퍼 에디터 Ki Chul Hwang Conpaper editor curator

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New artificial skin gives soldiers the power of invisibility on the battlefield and makes them undetectable to thermal imaging cameras. 

A South Korean team developed a type of cloaking skin uses activating heating and cooling to mimic colors of the surrounding environment that are capable of switching from one to another in just five seconds.

Designed as patches, the wearables are made of pixelized screens that use thermochromic liquid crystals screens to rapidly respond to the surrounding area and conceal human skin in multispectral ranges.

The patches are currently in the early stages, but the team told Defense One that the devices use a specialized micro camera that allows them to autonomously respond to the surrounding area.

A South Korean team developed a type of cloaking skin uses activating heating and cooling to mimic colors of the surrounding environment that are capable of switching from one to another in just five seconds

‘Cephalopods’ extraordinary ability to hide into any background has inspired researchers to reproduce the intriguing ability to readily camouflage in the infrared (IR) and visible spectrum but this still remains as a conundrum,’ reads the study published in the Advanced Functional Materials journal.

‘In this study, a multispectral imperceptible skin that enables human skin to actively blend into the background both in the IR-visible integrated spectrum only by simple temperature control with a flexible bi-functional device (active cooling and heating) is developed.’

The patches are bendable and conform to the various curvature of the skin, allowing the user to wear them as an artificial skin.

Pixelized screens line the patches and consist of a thermoelectric (TE) unit that cools or heats up by applying a reverse electric current.

To test the wearables, the team placed a patch on a human and moved it across a background of different colors and temperatures. They observed the ‘individual pixels in the imperceptible artificial skin quickly adjusted to the background environment to such an accuracy that it appears as if there is an empty hole on the hand'

The units change from red, green to blue depending on the temperature determined by the pixels.

To test the wearables, the team placed a patch on a human and moved it across a background of different colors and temperatures.

They observed the ‘individual pixels in the imperceptible artificial skin quickly adjusted to the background environment to such an accuracy that it appears as if there is an empty hole on the hand,’ reads the study.

For another demonstration, the patches were placed on a human’s cheeks in the background of the bushes.

For another demonstration, the patches were placed on a human’s cheeks in the background of the bushes. The area of the skin that is covered with the device matches the background and appears to look like an extension of the camouflage-patterned military uniform

The area of the skin that is covered with the device matches the background and appears to look like an extension of the camouflage-patterned military uniform.

The team has also addressed issues where users would be placed in extreme temperatures, such as the Arctic or in the desert, which could affect the device's cloaking ability.

Seung Whan Ko of Seoul National University and lead of the study told Defense One that ‘this problem may be solved by adding a proper thermal insulator.. But this might also cause performance to vary, which means more experimentation is needed before the device is fully prepared for live combat.’

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'Artificial skin' gives soldiers the power of invisibility

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