Through years of R&D, our patent granted Splay material science technology is the only display (projection or otherwise) that can fully fold without permanent wrinkles.  We have also received patents for the only one-step (and extremely durable) expand and collapse display.  You can check out some of our granted U.S. patents here: https://patents.justia.com/assignee/arovia-incful and informative answer to the frequently asked question here.