Prof. kyung cheol choi from the Korea Electric Engineering Institute and his team have made remarkable achievements on ultra-thin light-emitting diodes.
The study, published online in the International Nano Magazine and the Nano Letters on December 6, predicts that this highly efficient and durable light-emitting diode technology will be widely used in wearable displays.
The current wearable displays are generally based on OLED screens. Due to the size limitation of the wearable devices, the existing screens can not achieve a good display effect.
To solve this problem, the kyung team devised a fiber-compatible OLED structure that successfully fabricated fiber-based OLED light-emitting diodes by dip coating the three-dimensional structure of the fiber.
The team also validated the current efficiency of the fiber-organic diode at 4.3% tensile strain while maintaining 90% flow through. And, they could be woven into textiles and knitwear without any problems.
In addition, this technique allows organic diodes to be made on fibers that are thinner than the human hair.It is important to note that all work is performed at a low temperature of minus 105 degrees.
Professor Choi said: "The existing wearable displays due to its performance is too low, there are limitations in the applicability, but this technology can create high-performance optical fiber organic diode, this simple, low-cost process is Fiber wearable displays open up a commercial path. '