iPhone 13 Flip leak just revealed Apple's secret weapon – Tom's Guide

The iPhone Flip could use a new kind of flexible display that can protect the screen from all kinds of damage, building on the strength of the iPhone 12

Discovered by Patently Apple, the documents were initially found back in April, but now the patent has been granted by the USPTO, giving Apple control over the concept. With this kind of secret weapon, we could easily see one of the iPhone 13 models being a foldable phone.

Titled “Hybrid coverlay/window structure for flexible display applications“, Apple’s patent shows a four-layer screen, consisting of a cover layer, a hardcoat layer, an inner surface and a transparent support layer. The hardcoat layer seems to be the key, pre-filling in the existing micro-cracks in the surrounding layers, or acting as the outermost layer, being resistant to scratches and punctures.

iPhone Flip display

A diagram showing the cover, hardcoat, inner and support layers in flat and folded orientations. (Image credit: USPTO)

For additional strength, the bottom transparent layer could also be made of glass or sapphire. Artificial sapphire is much harder than the usual toughened glass used on smartphones, which is why Apple uses it on the iPhone 12 series’ rear camera lens covers to prevent scratches on the cover from ruining the phone’s photos.

iPhone Flip display

Illustrations showing how a standard foldable display (left) cracks compared to a foldable with a hardcoat layer (right). (Image credit: USPTO)

The crease in a folded device is always going to be its weakest point, due to the regular movement, plus the increased risk of intrusion from debris via the hinge mechanism. We’ve seen how badly this can go wrong on phones such as the original Samsung Galaxy Fold, so it’s good to see Apple learning from the mistakes of its rivals.


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