What is the heating of mobile phone membrane?

In essence, the hot bending tempered film is a flat glass film made of curved glass by a hot bending machine at high temperature, instead of a 2.5D glass film with curved edges, and the screen itself is flat.

The 3D hot bending tempered film screen itself is also curved, which is good for viewing and feels much better. Therefore, the hot bending tempered film can also be called 3D curved surface/glass/hot bending/full-screen tempered film, and the same curved surface also describes the shape like 3D.