Gosh iFixit, are you still on iPhones? Didn’t you finish that teardown? Well, yes. But the truth is, we still had two questions left unanswered:
- How exactly did Apple implement the highly touted 3D Touch feature?
- What will that do to the screen repair procedure?
To satisfy our curiosity, we cut, pried, hot-wired, and scraped at the display assembly of our brand-new iPhone 6s, and examined the entrails for signs and portents.
• The 3D Touch sensor assembly lives on the very back of the display panel, and is fairly easily separated from the backlight, display, and digitizer glass.
• The home button cable has been replaced by traces along the side of the 3D Touch sensor panel, eliminating the need to transfer the cable for certain display repairs.
• The sensor panel is a grid of rectangular capacitor plates, connected to the controller IC by very tiny traces. These plates would be huge for a touch sensor—luckily their job isn’t to pinpoint your fingertip on the screen, as the in-screen digitizer will still handle that. These sensors measure the distance to your finger, equating to the force of a press through pliable glass.
Not satisfied with the highlights? Wander on over to the full teardown for all the details.
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