Since the popularity of smart phones，the demand for screen protector is also increasing. Compared with replacing mobile screen, most consumers choose to buy a screen protector.What if mobile phones do not have a film?
The main thing that the screen should prevent is scratches. In daily life there are dust and sand everywhere，screen protector is the only thing that can prevent your mobile phone screen from been scratched as well as oil and fingerprint.
According to the Mohist hardness table, we can know that the hardness of steel materials such as fruit knife is only between 4.5 and 5.5, while gorilla screens are basically used now. The Mohist hardness of these screens is 6, so in general, steel materials will not affect the screen of mobile phones.
The main enemy of the screen is silicon dioxide. That It's sand, stone, glass ect..When we wipe with our hands or cloth, the dust will leave a shallow scratch on the screen of the mobile phone. After a long time, there will be more and more scratches, and the screen of the mobile phone will become worn out.
At the end,Screen protector is also a effective way to protect your mobile phone in case of droping the mobile phone on the ground.So don't wait for the screen to break before you regret not using the screen protector.But if you change your cell phone every year, please forget what I said.