Can applying screen protector film to a phone really protect the screen? Nowadays, a variety of mobile phones are emerging one after another. Many mobile phones are becoming more and more fashionable in appearance, and nowadays, the appearance of many phones relies on the screen to add points. But the screen is the most prone key point to problems in mobile phone components. In fact, it is common knowledge in most people's lives that mobile phone screens are prone to damage, because since the rise of smartphones, people have found that phones are not as resistant and durable as before.

The current mobile phone screen can be said to have a Note in the front and a Plus in the back, and a large screen is the basic configuration of the current phone. However, there are pros and cons, as the larger the screen, the greater the chance of damage. In order to protect their beloved phones, people are rushing to use screen protectors, commonly known as screen protectors. Since the introduction of screensavers, the screen damage rate of mobile phones has greatly decreased, which makes people increasingly dependent on this mobile phone accessory. But is a screensaver really that amazing?

In daily life, mobile phones often face scratches from hard objects on the screen. Most people subconsciously think that their phone screen will be scratched, but is it really that fragile?

At present, many mobile phone screens use tempered glass, among which Corning's gorilla glass is the most commonly used. Mobile phone manufacturers have also stated in their promotion that the hardness of mobile phone screens is higher than that of metals. However, many people who like to run naked on their phones will find slight scratches on the screen after using it for a period of time. Why is this?

According to the Mohs hardness level, the hardness of a steel knife is around 5.5, while the hardness of glass is generally between 6-7. Therefore, ordinary metal objects do not cause much damage to the phone screen. So, where do scratches on the phone screen come from? From the perspective of hardness grading, the hardness of quartz stone is higher than that of glass. The common component of sand in our daily life contains quartz stone, with an equivalent hardness of about 7.5, which is higher than the hardness of mobile phone screens. Therefore, if your phone falls to the ground or there are sand particles in your pocket, it will be scratched over time. This is also the main reason why our mobile phone screens are scratched.

It can be seen that the hardness of mobile phone screens is indeed very high. I believe everyone will still feel that even if it's hard, you need to put a film on it to be more reassuring. There is also evidence to support this idea, as under normal circumstances, phones without a film are more likely to be damaged than those with a film.