IDTechEx Research says that the flexible encapsulation (barrier) market for flexible devices (such as displays, but not only) will reach over $184 by 2020. IDTechEx sees next-gen single-layer encapsulation solutions to capture a part of the market in the future.
IDTechEx also takes a look at two specific technologies. Flexible glass is not seen to become the solution of choice in the short to medium terms due to the fragility and the fact that it cannot be stressed out of axis - and extreme flexibility can be a problem. Flexible glass is seen to be the best choice for a substrate material, though.
ALD is also not seen to be a short-term solution as a stand-alone layer - however ALD may be a solution in a multi-layer stack. ALD still has technology issues (such as film stability and particles and substrates non-uniformity). ALD (by Synos/Veeco) was tested at Samsung Display but IDTechEx says that this evaluation failed and was halted.