What is a 3D phone screen protector?

What is a 3D phone screen protector?

Simply put, 3D means three-dimensional, and 3D phone screen protector is a three-dimensional screen protector.
The following is a brief introduction to the origin of 3D phone screen protector.
In September 2014, the iPhone 6 was released with a 2.5D screen. At the same time, in March 2015, Samsung released the s6edge with a hyperbolic screen. The two kings of the mobile phone market, Apple and Samsung, both updated their screens. Since then, various mobile phone protective phone screen protector manufacturers have started a new round of mobile phone screen protective phone screen protector upgrades in order to fully match the new screen.
The mobile phone screen protective phone screen protector market began to upgrade from 2D and 2.5D to 3D.
There are two main methods of producing 3D screen protectors,
One category is all-glass 3D. (The entire phone screen protector is made of glass)
The other is 3D (carbon fiber 3D, alloy 3D) splicing other materials through glass
Of course, there is still a big gap in aesthetics between splicing 3D and full glass. After all, the screen of the phone itself is glass. So we mainly talk about 3D full glass.

In terms of craftsmanship, there are four main types of Apple 3D mobile phone screen protectors.
The first is the hot bending process. The hot bending process is to bend the mobile phone screen protective phone screen protector with a hot bending machine.
The second is the cold carving process. The cold carving process is to directly use cnc to carry out fine carving, and hollow out the flat glass. Curved outward.
The third is the etching process. The etching process is to use chemical liquid (hydrofluoric acid) to rot on the flat plate protective phone screen protector to form grooves, and then use cnc to carve.
The fourth is the glue dropping process. The glue dropping process is to drop the glue directly on the edge of the flat glass. The glue dropping process is also called fake 3D.

Among these four processes, the production effect of hot bending is the highest. And it can make a large arc (Samsung's curved mobile phone screen protective phone screen protector must be produced by hot bending process.) The disadvantage of hot bending is that its stability is relatively low. If AB glue is pasted, it is easy to have white edges. Hot bends are relatively cheap.
The production efficiency of cold carving is relatively low, there is no obvious weakness, and the quality and price are uneven. Look at the location and strength of the factory.
Etching is more productive than cold etching. One small downside is that there are etched lines. The advantage is that the exhaust is better than cold sculpting. The etching process is generally used for mid-to-high-end products.
Dispensing is a new technology released in 2017, and it was only matured in the first half of 2018. The appearance is relatively poor, but the exhaust is the fastest among the four. The price is about the same as hot bending.