Apple says the iPhone Duo’s inner folding display uses a complex, ten-layer ultrathin structure designed to withstand wear and tear.
iPhone Duo inner folding screen construction
Apple describes a stack of 10 ultrathin layers for the inner display, including a nano-textured cover layer made from a custom polymer that Apple says is up to 40 percent stiffer than ‘other materials used in the industry.’ Above and below the folding display panel Apple added high-strength glass, and a titanium plate sits at the bottom of the stack. According to Apple, custom adhesives “allow the layers to glide past one another like the pages of a book, relieving bend stress.”
Durability, coatings and display features
The exterior nano-texture layer’s finish is intended to reduce glare and minimize the visibility of the crease, and a scratch-resistant coating covers the nano-texture layer. The outer display is protected by Ceramic Shield 2, the company says, as on the iPhone 18 Pro models, while the back of the iPhone has Ceramic Shield. The inner display receives the custom polymer cover instead of Ceramic Shield. Both of the iPhone Duo’s displays support ProMotion, Always-On, and True Tone, and Apple states they offer 3,000 nits of peak outdoor brightness.
