Sunday, August 23, 2009

Bendable LED - by Abinyah Walker

New LED manufacturing techniques promises more useful applications for LED devices, including flexible interior lighting, entertainment billboards and medical imaging. The new process minituarizes light emitting diodes (LED) into ultrathin devices that can be bonded to glass or to plastics providing a wider application to product manufacturers.

As reported in the journal Science and published by the University of Illonois, John Rogers, professor of Materials Science and Engineering at the University of Illinois, who teamed up with experts at Northwestern University, the Institute of High Performance Computing in Singapore, and Tsinghua University in Beijing to create the new process. The "goal is to marry some of the advantages of inorganic LED technology with the scalability, ease of processing and resolution of organic LEDs," said Rogers. "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."

a thin sheet of plastic, wrapped around a finger
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)


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