Developed by researchers in Tokyo, Japan, these super-flexible electronic displays are the thinnest ever, at an incredible 3 micrometres thick. How thin is that, exactly? Oh about 0.003 mm - more than 13 times thinner than a human hair.
As the team reports in Science Advances, when an 'e-skin' with red and green lights and a sensor that can measure oxygen levels through the skin was laminated to a figure, it stayed illuminated and delivered measurements for four whole days.
The lights used in the displays are called organic polymer light-emitting diodes (PLEDs), which are small sheets of energy-efficient lights that turn off and on when exposed to an electrical pulse.
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