Whether or not the upcoming iPhone 6 will sport a sapphire crystal display or not is something we’ll have to wait to find out for sure, but the ultra-strong material used by many high end watch manufacturers is certainly something Apple has spent a lot of time investigating.
Some of those investigations have led to a new patent application published today, revealing how Apple plans a technique for strengthening glass by using an “ion implanting” method as opposed to the kind of chemical coatings used for, say, Corning’s Gorilla Glass.
According to the application, the reason for this is that the kind of traditional chemical strengthening techniques used on glass screens might not be effective when used on materials like sapphire.