Jeff Williams (Jeff Williams), Apple's chief operating officer, revealed the details. Just as Steve Jobs raised the plastic screen on the stage.iPhoneThe next day, Jobs complained to Williams that there was a scratch on the iPhone display after carrying the iPhone in his pocket. Jobs said at the time that the screen needed glass protection, but Williams said that durable glass could not be put into commercial use in the next three to four years. Jobs insisted that the iPhone must be protected with glass to protect the plastic screen when it was shipped in June.
Finally, after the first few generations of iPhone shipments, Apple and Corning team were equipped with scratch-resistant glass, which was eventually called Gorilla Glass.
Apple invested $200 million in the Corning Kentucky plant in 2017 to help Corning develop flexible glass for folding displays for the company.
Now, it is rumored that Apple is developing a device for foldable display, which may be launched as early as 2020.