The main purpose of the coating is to reduce screen wear. Apple notes that often the destruction of glass is due to the presence of microcracks. A special film with a thickness of only 200 microns can fill existing microcracks as well as prevent the formation of new ones.
The patent further states that the coating layer can have sufficiently high strength and tensile strength.
It has been said for a long time that Apple is working on its own foldable iPhone.
Source: Ferra
