Tempered glass screen protective film is a kind of protective film for mobile phones, mainly for the purpose of scratch protection, anti-fingerprint and so on. Ordinary film is 3H hardness, use a few months will not have too much scraping, so to choose: high hardness, low toughness, cell phone fell, can be a good anti-broken screen. When the mobile phone falls on the ground, the impact force is great, and the tension is too large and the screen is broken. The toughness of the tempered membrane is low. When the cell phone sends out tension, the membrane will bear the tension. This greatly reduces the tension on the main screen.
Advantages of tempered glass film:
1. The surface is hard enough and scratch-resistant. Even if you use a knife to pull it hard, you won't get any flowers.
2. Explosion-proof and scratch-proof: It can prevent the mobile phone from inadvertently hitting and causing the glass panel to be broken and scattered, reducing the hidden damage of the glass panel and ensuring the safety of the user. At the same time to prevent accidental scratches, affecting the appearance of mobile phones.
3. Easy to use, no bubbles. The transmittance of the picture is as high as 95%. Does not affect the use of mobile phone sets and other mobile phone accessories.
Disadvantages of Tempered glass film:
Compared with other films, it is relatively thick, and it also affects the sensitivity of the touch screen. Due to the characteristics of hard and brittle toughened glass, the overall performance is fragile.
1. After the tempered glass can no longer be cut and processed, the glass can only be processed to the required shape before tempering, and then tempered.
2. Although the strength of tempered glass is stronger than that of ordinary glass, tempered glass has the possibility of self-detonation (self-breakage), while common glass does not have the possibility of self-explosion.
3. The surface of the tempered glass will have irregularities (wind spots) with a slight thickness reduction. The reason for the thinning is that after the glass is softened by the hot melt, the glass is quickly cooled by the strong wind force, and the crystal gap inside the glass becomes smaller and the pressure becomes larger, so the glass is thinner after tempering than before tempering.