More and more handheld devices have curved-glass screens. According to developers, the slight curve makes everything look bigger. Apple recently invested $578 million in sapphire crystals. Synthetic sapphire is more scratch-resistant than traditional glass, is scratch-resistant, and is considered preferable to traditional glass. With the size of Apple’s investment, experts speculate the sapphire will be for smartphones and maybe even tablets.

Read the full article here:
Curved glass is more than a marketing gimmick – ZDNet