It has been reported that Corning is working on flexible glass that will be strong enough to use with foldable phones. Presently, foldable devices rely on plastic polymers because of their flexibility. However, Corning wants to eventually create a glass product that offers the useful properties of the plastic polymer screens but with the quality and hardness of glass.
https://www.notebookcheck.net/Corning-is-working-on-Gorilla-Glass-for-foldable-smartphones-but-it-could-take-years.412911.0.html