What are the differences between 2.5D and 3D heat-bent films?

A: 2.5D and 3D refer to the edge treatment process of the film: ①2.5D film: The main body of the glass is flat, and the edge is formed into an arc through micro-arc grinding, but the arc is small and cannot fully cover the curved part of the curved screen. It is suitable for covering the flat area of the flat screen or curved screen. ②3D heat-bending film: Through the heat-bending process, the entire piece of glass is bent into shape, with an arc that perfectly matches the curved screen. It can fully cover the screen, including the curved edges, providing a smoother touch and a more integrated visual effect. Difference: 3D film has better adhesion, the edges do not cut hands, and the touch control is more complete, but the process difficulty is higher, the cost is higher, and dust is more likely to enter the edges. 2.5D film is low in cost and has a mature process, but for curved screen models, it may not be fully covered or white edges may appear. Woowhead currently sells Guanfudun as 2.5D (South Glass high alumina, compatible with the entire iPhone 17 series), and Guanfudun Qu as 3D heat-bent (South Glass microcrystalline glass KK9). Compatible with iPhone 17 Pro/Pro Max/18 Pro/18 Pro Max curved screen, launched in September 2026.