As we all know, the aftermarket screens in the market are using G+F or G+G glass these two kinds of front glasses. Today let me show you what they are. When talking about G+G or G+F, it refers to one kind of technology that is used to make iPhone touch panel. Here is how it looks like.

Here is the thickness of these two glasses. The error range is +/- (0.01-0.02).

There is tiny difference. G+F glass is thinner than G+G glass. What cause this ? As we said, G+F glass is made by glass and film, while G+G is by glass with glass. The difficulty of technology on manufacturing G+F glass is harder than G+G's. So the cost is a little higher than G+G.

For G+F glass, the touch is on the film. So if the glass is cracked, the touch function cannot work. While G+G glass's touch is on the flex, so even the glass is cracked, only if the flex is not damaged, the touch function can still work.

Ordinary factories are not able to produce these two kinds of glasses. Only the factories who have the ability to develop the scheme can do that. Because a glass produced by Touch Panel Factory needs to be compatible with a China Made LCD that made by LCD module factory, which a screen can be manufactured successfully.