It it is steel or some metal like gold it will be used as an ornament, but that type of displays are in used as on day inform of watches. I think wearable simultaniously disposable as well, should be the matter of discussion here.
As opposed to what is mentioned in the article about the use of this kind of displays with NFC is less likely to be promoted in the current trend of the electronics as still all the mobiles phones are not being enabled with NFC, but this technology will be surely coming up with very different out of box applications of it likely to be used in the dresses and caps.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.