QLEDs meet wearable devices

The scientific team, from the Institute for Basic Science (IBS) and Seoul National University, has developed an ultra-thin wearable quantum dot light emitting diodes (QLEDs).

The electronic tattoo is based on current quantum dot (QLED) technology. Colloidal quantum dot (QLED's) have attracted great attention as next generation displays.

The (QDs) have unique properties such as the color tunability, photo/air stability, and are printability on various 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 readily scalable over large area.

Devices are adaptable to deformed states and thereby built on the unconventional curvilinear substrates including surfaces of various objects. Further mechanical deformations, such as stretching or wrinkling, are also adopted in this technology, which enables QLEDs on the .

This breakthrough highlights new possibilities for integrating high-definition full color displays in wearable electronics.

The article was published in Nature Communications in May, 2015.

More information: Wearable red-green-blue quantum dot light-emitting diode array using high-resolution intaglio transfer printing, Nature Communications, www.nature.com/ncomms/2015/150 … full/ncomms8149.html

Journal information: Nature Communications

Provided by Institute for Basic Science

Citation: QLEDs meet wearable devices (2015, June 2) retrieved 18 April 2024 from https://phys.org/news/2015-06-qleds-wearable-devices.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Explore further

Full-color organic light-emitting diodes with photoresist technology for organic semiconductors


Feedback to editors