Electroluminescent displays that are attached to the skin or other surfaces are no longer science fiction.
A team of engineers from Nanjing University has developed an epidermal stretching stopwatch, operating from the alternating current of low voltage, which makes it use absolutely safe for human tissues.
In order to create this device, the researchers placed the electroluminescent layer of light-emitting microparticles dispersed in a tensile dielectric material, between two flexible electrodes of silver nanowires.
The four-digit stopwatch also contains a new type of dielectric material consisting of ceramic nanoparticles built into the rubber polymer, which increases the display brightness. At low voltages, the numbers on it were bright enough so that they can be seen when illuminated in the room.
Researchers argue that this technology can find widespread use in wearable smart devices, soft robotics and man-machine interfaces.
However, this is not the first successful development in this direction. Last year, the international team of researchers has developed a reliable tanga-blank technology
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