An ultra-thin wearable quantum dot light emitting diodes (QLEDs) has developed by the scientific team, from the Institute for Basic Science (IBS) and Seoul National University. The electronic tattoo is based on current quantum dot light emitting diode (QLED) technology. Colloidal quantum dot (QLED's) have attracted great attention as next generation displays.
The quantum dots (QDs) have rare properties such as the color tunability, photo/air stability, and are printability on different substrates. The device is paper thin and can be applied to human skin like a sticker. The team developed the high performance red, green, and blue QLED array, whose resolutions approach 2,500 pixels per inch. This resolution is far superior to other light emitting devices and displays on the market today including ones used in the latest smartphones.
The technique is easily extensible over large area. Devices are flexible states and thereby built on the unconventional curvilinear substrates along with surfaces of numerous objects. Further mechanical deformations, such as stretching or wrinkling, are also adopted in this technology, which enables QLEDs on the human skin. This discovery highlights modern possibilities for integrating high-definition full color displays in wearable electronics.
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