Ken Werner, writing for DisplayDaily, breaks down Nanosys & DIC's recent announcement on ink jet printed Quantum Dots for color conversion devices:

Applying inkjet printing (IJP) to OLED displays has turned out to be much more challenging than anticipated, in part because it has been hard to maintain a uniform concentration of material in the OLED emissive layer after the ink has dried. At IDW in Japan this week, Nanosys and DIC are presenting a paper that will outline approaches for resolving such IJP issues when applied to air-processable quantum dots. [...]

The Nanosys-DIC announcement is significant, and is likely to bear commercial fruit sooner rather than later.