QLEDs Meet Wearable Devices
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Korean
scientists develop ultra-thin deformable QLEDs in the wearable platform.
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 light
emitting diode (QLED) technology. Colloidal quantum
dot (QLED’s) have attracted great attention as next generation displays. The
quantum dots (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 human skin. 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. The
link for the publication is as follows (http://www.nature.com/ncomms/2015/150514/ncomms8149/full/ncomms8149.html).
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Notes for editors
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References
9* Title of Paper: Wearable red–green–blue quantum dot light-emitting
diode array using high-resolution intaglio transfer printing, NATURE
COMMUNICATIONS, DOI: 10.1038/ncomms8149
9* Authors: Moon Kee Choi, Jiwoong Yang, Kwanghun Kang, Dong Chan
Kim, Changsoon Choi, Chaneui Park, Seok Joo Kim, Sue In Chae, Tae-Ho Kim, Ji
Hoon Kim, Taeghwan Hyeon & Dae-Hyeong Kim
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For further information or to
request media assistance, please contact: Mr. Shi Bo Shim, Head of Department
of Communications, Institute for Basic Science (+82-42-878-8189;
sibo@ibs.re.kr) or Ms. Sunny Kim, Department of Communications, Institute for
Basic Science (+82-42-878-8135; Sunnykim@ibs.re.kr)
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About Institute for Basic Science
(IBS)
The IBS was founded in 2011 by the government of the Republic of Korea. With
the sole purpose of driving forward the development of basic science in Korea,
IBS will be comprised of a total of 50 research centers in all fields of basic
science, including mathematics, physics, chemistry, life science, earth science
and interdisciplinary science. IBS has launched 24 research centers as of
January 2015. There are one mathematics, eight physics, six chemistry, seven
life science, and two interdisciplinary research centers.
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