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Corning dismisses sapphire screens, says Gorilla Glass 3 is still the best way to protect gadgets

Corning’s Gorilla Glass has long been considered to be the strongest and most protective glass cover for our mobile phone screens, but recently, sapphire has emerged as the “dream” material which will put an end to scratched, cracked and shattered displays. Corning, which doesn’t make sapphire screens, has published an article which hits back at this belief, saying its new Gorilla Glass 3 does everything sapphire does, and more.

Jeffrey Evenson, one of the company’s senior vice presidents, attacks the notion that sapphire is the, “Obvious solution,” for strengthened display coverings. He says, “What would people say if a cover was invented that was about half the weight, used 99 percent less energy to make, provided brighter displays, and cost less than a tenth of sapphire?” He continues, “It so happens that Corning has already invented that cover, and it’s called Gorilla Glass.” While sapphire is harder to scratch than Gorilla Glass.

Corning says it is 67 percent heavier per unit volume, more difficult to process the thinner it gets, and, “Transmits about six percentage points less light and may produce optical distortions.” He also claims Gorilla Glass can withstand three times the force needed to break sapphire, and both panes had similar levels of wear and tear after tests.

Another VP, James Steiner, who manages Corning’s Specialty Materials division, comments on sapphire’s green credentials. “Sapphire’s cost and environmental hit are huge issues,” he is quoted as saying, before adding that Gorilla Glass, “Can be recycled using standard programs.” (Excerpt from Digital Trends)


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