Apple's Foldable iPhone to Feature Dual-Layer Glass for Reduced Display Crease

Apple is reportedly developing its first foldable iPhone with a dual-layer ultra-thin glass (UTG) structure aimed at reducing display creases. This design involves two layers of UTG or ultra-thin flexible glass (UFG), with the display positioned between them, effectively isolating it from direct contact with the hinge. This configuration is intended to distribute mechanical stress across multiple layers, potentially enhancing durability and minimizing visible creasing over time.

Unlike existing foldable smartphones that typically employ a single UTG layer, Apple's approach seeks to decouple the display from the hinge mechanism. This strategy aligns with the company's goal of making the crease nearly imperceptible, addressing a common issue in current foldable devices.

In December, reports indicated that Apple was testing next-generation UFG with variable thickness—thinner at the fold for flexibility and thicker elsewhere for rigidity. The latest information suggests that Apple has progressed to developing a composite glass stack rather than relying solely on a single panel.

The foldable iPhone is anticipated to launch in September alongside the iPhone 18 Pro lineup, though some analysts suggest a release closer to December. The device is expected to feature an approximately 5.3- to 5.5-inch outer display and a 7.8-inch inner screen. It will reportedly utilize liquid metal hinges to achieve a virtually crease-free display and is projected to be priced between $2,000 and $2,500, positioning it as Apple's most expensive iPhone to date.