Odd-ball tablet/smartphone slider question

Simple question, probably a stupid question as well; but how does the slider function on smart phones and tablets work? I understand the mechanics of a slide rail but the top half has to be electronically connected to the bottom half and i just don't understand how that works. Does a flex ribbon bend back and forth internally every time it slides? That is the only reasonable answer i can think of.

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  1. http://www.youtube.com/watch?v=C6H82_HRnTw

    That should answer your question. Special attention on 5:03. I recommend you to mute the computer b4 watching this video.
  2. thanks, that helps :)
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