Why stop at mobile phones? Is there a reason laptops need so many different connectors? I am willing to bet many random connectors are just planned obsolescence or a secondary revenue stream for producers. Also, let's take this further. Any reason laptop displays can't internally have a rather standardised connector? We are throwing away perfectly good displays on broken laptops. What if I could buy a $20 adaptor and…
> Any reason laptop displays can't internally have a rather standardised connector? Don't they? I thought LVDS was nearly universal for a long time. Didn't mean you could always swap panels though, resolution and timing needed to be supported, even when the screen physically connected. I've seen boards for sale to add external vga/dvi to old panels, but ultimately did not buy any. I think there may be some movement t…
LVDS requires 40 differential signaling pairs for displaying 4K resolution, eDP requires only 4 and even that can be reduces to 2 if DSC is used or your display adapter and panel support HBR3.
However for LVDS and eDP the physical connectors can be drastically different but in all honesty this has very much to do with the physical design of the laptop rather than some anti consumer conspiracy.
Depending on the hinge mechanism, the wiring length as well as other factors such as does the same cable need also to support power, USB (camera) and audio (microphone) connectivity you get different designs.