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iFixit's teardown of the iPhone Duo shows potential causes for cracked screens

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iFixit's teardown of the iPhone Duo shows potential causes for cracked screens

The Duo is the most repairable folding phone yet, but opening it up isn't for the faint of heart.

iFixit's latest teardown of the iPhone Duo has arrived, and it's especially interesting because of the device's complex folding display. The DIY repair group spotted some interesting details about the hinge design that may explain screen cracks some buyers are seeing. It also said that the Duo is the most repairable folding device yet, but opening it up wouldn't be for the faint of heart.

To make the screen fold smoothly while minimizing the appearance of a crease, Apple took a twofold approach (sorry). The first part involved creating a smooth curve for the screen inside the hinge by using multiple curved guides that extend when the display is folded and retract when it's open. A center support bar running along the hinge also drops to accommodate the fold.

Secondly, Apple hid the crease by using oval pixels aligned a specific way and effectively "blurring" the fold point with a nano-texture coating. iFixit showed this effect precisely by putting the screen under a powerful microscope.

The retractable curved guides and support bar may point to the potential cause for screen cracks. " In one of its simulations, it found that the center bar failed to drop far enough, creating a stress point when the screens fold comes down on it.



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