The Holst Centre released a few nice videos, and I think they're worth a watch. First up is the one about their flexible OLED display research. Last year Holst and imec announced a new program to develop high resolution flexible OLED displays, with a focus on a mechanically flexible encapsulation film and TFT backplane, printed high-efficiency OLED and new materials and processes. The video below shows their first display (which was already unveiled last month):
In this new video you can see that the display is monochrome (red) and contains several defects.
The next video (above) explains about Holst's new Spatial Atomic Layer Deposition, which can be used to deposit OLEDs as well. The video below discusses the Holst's integration technologies for flexible and wearable systems. Holst's Ashok Sridhar mentions organic LEDs a couple of times but I think these are regular LEDS.