Scientists create flexible LEDs

flexible LEDResearchers at Taiwan’s National Chiao Tung University said they have come up with a very flexible and efficient white LED design.

But while the design is completely new, it can be made using existing manufacturing methods making it easy to build into devices such as curved and flexible TV screens and wearable devices.

Chien-Chung Lin, an associate professor at the university, said that compared to organic light emitting diodes (OLEDs), this design is low cost, has a longer lifetime and high efficiency.

The scientists ran their prototype for 1,000 hours to test it, with emissions decaying by only five percent.

And it held its power output bent to a 1.5 centimetre curve, and showed light efficiency of 120 lumens per watt.

Lin concluded: “Because the components are all available in current technology, the combined reliability can be very good. Most of the novel processes or materials require a lengthy procedure to verify their reliability, but our design uses only available parts.”