Apple is testing materials for a new and tougher display film technology for its first foldable iPhone, as it looks to differentiate its upcoming foldable from rival foldables, claims a new report.
A new supply chain report from The Elec says Apple is evaluating transparent polyimide film for use as a protective layer that would be applied on top of the ultra-thin glass to be used in the foldable display. The company is reportedly testing two possible options for this outer film: polyethylene terephthalate (PET) and clear polyimide (CPI).
Most foldables use ultra-thin glass for their displays, although a flexible polymer film is still needed to be applied over that to prevent damage. The flexible film is the layer that is actually touched by users, making it important to ensure overall feel as well as durability.
The report says Apple’s evaluation of CPI is rooted in a wish to differentiate itself from the materials used by companies like Samsung, which uses PET. While CPI is more expensive than PET, it offers improved surface hardness and scratch resistance.
The lead candidate as a potential supplier of the material is Kolon Industry, which previously built a mass production line for CPI film in anticipation of stronger demand from manufacturers of foldable devices. The ultra-thin glass for the foldable iPhone is expected to be made by Chinese firm Lens Technology, which will handle the bonding of the final protective film to the glass.
Apple is widely expected to unveil the “iPhone Fold” sometime late next year or early 2027. The device is rumored to boast a 5.5-inch outer display, opening up in a book-style design that features a roughly 7.8-inch inner screen. The device has been described as “super thin,” and Bloomberg’s Mark Gurman has compared it to “two titanium iPhone Airs side by side.” The device is also believed to have Touch ID, two rear cameras, the A20 chip, and the “C2” modem. It is expected to launch alongside the iPhone 18 Pro and iPhone 18 Pro Max sometime later this year.
