Apple continues to evolve the hinge it may use on a folding iPhone

A newly-revealed patent application shows Apple has evolved its previous hinge designs, and is now describing foldable iPhone displays with far more intricate gearing.

When a folding iPhone, iPad, or even MacBook Pro is eventually launched, its fold hinge is likely to look typically smooth and simple. On the inside, however, it now looks as if Apple is at least favoring a design with an interlocking mesh of gearing.

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