Corning supplies Gorilla Glass, a family of strengthened cover glasses used in many smartphones and tablets.
Gorilla Glass is made from a specialized glass composition that is chemically strengthened through an ion-exchange process. Larger potassium ions replace smaller sodium ions near the surface, creating compressive stress that helps the glass resist scratches and damage.
Corning introduced the first Gorilla Glass in 2007, around the launch of the original iPhone era. The product became an important component for touchscreen devices because it combined thinness, transparency, and improved durability.
Corning was founded in 1851 as the Bay State Glass Company and later became associated with scientific glass, optical fiber, display glass, and laboratory products. Gorilla Glass is a Corning brand, not a generic name for every strengthened phone screen.