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Future: Wearable, flexible, stretchable displays using inorganic LEDs

A team of international researchers have developed a new process to create ultrathin, ultrasmall inorganic LEDs (light emitting diodes). Researchers have also developed printing processes for assembling these devices into arrays on stiff, flexible and stretchable substrates.

Possible future applications:

  • high-resolution home theater displays
  • wearable health monitors
  • biomedical imaging devices.
Micro-LED display printed on a thin sheet of plastic, wrapped around a finger. (Credit: Photo by D. Stevenson and C. Conway, Beckman Institute, University of Illinois)

Micro-LED display printed on a thin sheet of plastic, wrapped around a finger. (Credit: Photo by D. Stevenson and C. Conway, Beckman Institute, University of Illinois)

 The team: 

  • Collaborative efforts at the University of Illinois.
  • John Rogers, the Flory-Founder Chair Professor of Materials Science and Engineering at the University of Illinois.
  • Xiuling Li, electrical and computer engineering professor, an expert in epitaxial growth.
  • Kent Choquette,  electrical and computer engineering professor,a leader in semiconductor optoelectronics.
  • Placid Ferreira, mechanical science and engineering professor, developed the printing-based manufacturing tools.
  • Researchers at the Institute for High Performance Computing in Singapore provided finite-element studies of the same systems.

From the news release:

“By printing large arrays of ultrathin, ultrasmall inorganic LEDs and interconnecting them using thin-film processing, we can create general lighting and high-resolution display systems that otherwise could not be built with the conventional ways that inorganic LEDs are made, manipulated and assembled,” Rogers said.

Read more details at: http://news.illinois.edu/news/09/0820ultrathin_LED.html

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