Mobile phone sapphire screen will be put into mass production within one year

**Abstract** Sapphire is one of the hardest materials in the world, second only to diamonds. In June 2013, the Asia Mobile Communications Expo (GSMA 2013) took place at the Shanghai New International Expo Center from June 26th to 28th. As a major event for new products and technologies in the mobile industry, it drew attention from top manufacturers like Lenovo, BBK, vivo, Samsung, Sony, and Huawei. These companies showcased their latest devices and innovations. Alongside them, major telecom operators such as China Mobile, China Unicom, and China Telecom, as well as companies like Visa, Rovio, and App Lab, also made their appearances. When it comes to durable screens for mobile devices, sapphire is a strong contender. It’s the second-hardest material after diamonds, making it an excellent alternative to Corning’s Gorilla Glass. If you're tired of scratched phone screens, sapphire could be the next big thing. With its high hardness, it can withstand daily wear and tear without needing any protective film. It's expected to compete closely with Gorilla Glass in the coming years. To compare sapphire and Gorilla Glass, two main factors come into play: cost and production capacity. These will determine how quickly sapphire can gain market share in the next 12 to 18 months. In terms of hardness, sapphire ranks just below diamond on the Mohs scale. This makes it far more resistant to scratches than regular glass. A phone with a sapphire screen would remain scratch-free even without a screen protector, offering users peace of mind. To truly understand the strength of sapphire, a video demonstration showed an iPhone 5 with a custom sapphire cover. Despite being hit by sharp stones repeatedly, the sapphire layer remained unscathed. Even fingerprints and sweat were no problem—just a quick wipe was enough. Although sapphire isn't a new technology—it has been around for over a century—it wasn’t widely used in consumer electronics due to high costs and low yield. However, with technological advancements, sapphire has become much more feasible today. International partnerships now ensure stable production. But for full adoption, collaboration between material suppliers and device makers is still needed, which is expected to be completed within the next year or so. Another advantage of sapphire is its higher dielectric constant compared to glass, making it potentially more responsive to touch input. While it won’t replace glass entirely, both materials are likely to coexist for a long time. In the near future, we may see more sapphire-based products entering the market, marking a new era in smartphone durability and performance.

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