Energy efficiency and flexible lighting applications of OLEDs hasn't lived up to its promise, however, because in typical OLEDs, only 20 percent of the light generated is released from the device. That means that most light is trapped inside the bulb, making it highly inefficient.
It's reported the scientists are on to a way to break the OLED-efficiency logjam. TThey have designed an OLED that boosts illumination by 60 percent using a combination of an organic grid working in tandem with small micro lenses that guide the trapped light out of the device.
...
Read more