Apple is reportedly evaluating tougher film technology for its first foldable iPhone as it tests materials that could differentiate the screen’s durability and feel from competing devices.
According to a new supply chain report from The ElecApple is evaluating a transparent polyimide film as a protective layer that would sit on top of the ultra-thin glass used in the foldable display. The report states that the company is currently testing two options for this outer film: polyethylene terephthalate (PET) and clear polyimide (CPI).
Most foldable displays today use ultra-thin glass to improve clarity and rigidity, but the glass still requires a flexible polymer film on top to prevent scratches and damage. This is the layer that users actually touch, making it a key factor in overall durability and feel.
Samsung currently uses PET film as a protective layer on the ultra-thin glass in its Galaxy Z Fold and Galaxy Z Flip devices. The Elec says Apple’s CPI ranking is rooted in a desire to differentiate its approach. CPI is more expensive than PET, but has better surface hardness and scratch resistance.
Kolon Industry has clearly emerged as a potential material supplier. The company had previously built a mass production line for CPI films after anticipating strong demand from upcoming folding facilities. China-based Lens Technology is expected to supply the ultra-thin glass for the foldable iPhone and handle the final protective film applied to the glass.
A final decision on the protective film is expected to be made soon as Apple continues to test the remaining components of the first foldable iPhone. Other rumors suggest that the device will feature a 7.8-inch bezel-less display, a 5.5-inch cover display, Touch ID, dual rear cameras, an A20 chip, and a “C2” modem. It is expected to launch alongside the iPhone 18 Pro and iPhone 18 Pro Max later this year.
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