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Passo 12
Last to come off of the display is the edge-lit LED backlight—a common type of backlight found in smartphones. An edge-lit backlight, like the name suggests, only has LEDs on one edge of the backlight. Light from these diodes is spread evenly over the screen by the diffuser—a multi-layer, semi-transparent plastic sheeting.
  • Last to come off of the display is the edge-lit LED backlight—a common type of backlight found in smartphones.

  • An edge-lit backlight, like the name suggests, only has LEDs on one edge of the backlight. Light from these diodes is spread evenly over the screen by the diffuser—a multi-layer, semi-transparent plastic sheeting.

  • As mentioned earlier, the reflective mylar layer was previously one of the layers of the backlight.

  • In this iteration of the iPhone the mylar layer now serves two purposes; the new use, to obscure the 3D Touch sensors from view, and the traditional use, to reflect diffused light outward instead of wasting light on the internals of the iPhone.

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