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Sapphire mobile phone protection screen developed successfully the end of the film era
**Abstract**
Zhejiang Shangcheng Technology Co., Ltd. has recently announced the successful development of its next-generation mobile phone screen protectors, made entirely from sapphire crystal. As the only sapphire-based screen protector in the world, this innovation marks a major breakthrough in the mobile phone accessory industry. It is set to revolutionize the market by moving away from traditional "protective films" and introducing a new era of durable, healthy, and high-performance mobile device protection.
Industry experts believe that sapphire, known for its exceptional physical and chemical properties—such as unmatched hardness, durability, and scratch resistance—will play a key role in the future of high-end smartphone design. With its superior mechanical strength, thermal conductivity, chemical stability, and optical clarity, sapphire is already widely used in aerospace, military, semiconductor, and medical industries. In consumer electronics, it has found applications in luxury watches, cameras, high-end phones, and computer panels.
Currently, most phone screen protectors on the market are made from polymer materials like PC, PVC, or PET. While they come in various types, none offer a perfect balance of protection, sensitivity, and aesthetics. For instance, some films reduce touch sensitivity and fail to prevent fingerprints, while others cause visual distortions like rainbow lines or crystal points. Additionally, materials like PC and PVC have been phased out due to their potential to damage screens and contain harmful heavy metals. Most importantly, these films only protect the screen, not the overall structure of the phone.
In short, there’s no perfect phone screen protector on the market today. The introduction of sapphire-based screen protectors aims to meet all-round user needs—offering better visual clarity, touch response, health benefits, and personalization.
Firstly, sapphire screen protectors provide excellent protection. With a surface hardness of 9 on the Mohs scale—second only to diamond—they offer 20 times the strength and 100 times the scratch resistance of regular glass. Their impact resistance is extremely high, significantly reducing the risk of cracked screens. Plus, their excellent thermal conductivity allows faster heat dissipation, and their stable chemical properties make them resistant to strong acids and alkalis. This makes them a reliable defense against daily wear and tear.
Secondly, with a thickness of just 0.3mm, sapphire offers high optical transmittance and minimal light scattering, delivering more vivid colors and a clear, mirror-like finish. Its high sensitivity outperforms other screen protectors, offering smoother and more precise touch control, making the user experience more enjoyable.
What stands out most is the product’s focus on health and technology. It introduces a new concept of radiation resistance, which is twice as effective as ordinary glass. This helps reduce electromagnetic radiation exposure, especially to the brain, offering added protection for both eyes and overall health.
Moreover, the sapphire screen protector breaks away from the traditional single-purpose design, giving users a unique and personalized experience. As a material comparable to diamonds, it has already been adopted by top luxury brands such as Ferrari, Lamborghini, and Vertu. Known as “the watch glass that never wears out,†sapphire has become a symbol of prestige and value. This elevates the sapphire screen protector to represent not just quality, but also elegance and sophistication.
Shangcheng Technology began researching sapphire screen protectors back in October 2011, spending over a year and a half developing the technology. Now, the product is gaining significant attention from mobile phone accessory manufacturers and is expected to launch in the first quarter of next year.