New Display Material Could Mean Scratch-Free Phones

A new display material could mean scratch-free phones. Sapphire might become the material used to replace smartphone screens. Diamonds are the only natural mineral that is harder than sapphire, a crystal form of aluminum oxide that is also scratch resistant. Currently, smartphones like the iPhone, use Gorilla Glass to protect the screen, but the iPhone 5 just started using sapphire to protect the camera lens.