In early 2012, Samsung said they aim to start mass production of plastic-based flexible OLEDs towards the end of 2012. But 2012 is almost over, and new reports suggest that Samsung delayed their plans to early 2013.
But is Samsung really that close to mass production? One of the major hurdles towards plastic based OLEDs is the encapsulation technology. Back in early 2012 Samsung said they will use Vitex' technology (which they bought in 2010) - but this technology is difficult to scale and is very slow. When Samsung delayed the launch to 2013, it was reported that the main issue indeed was the slow encapsulation (that, and low uniformity).