Broke LCD PCB connector, no display, device still powers on

I accidentally broke off a small portion of the M7's LCD PCB connector (not sure what is the correct name for this).

I put everything together again, it still boots, but does not have any screen. Fortunately I can still use ADB so most of that side appears to be working fine.

Upon closer inspection, it looks like one of the connector pins are missing from the connector:

I am not sure how to proceed from here - is it possible to get a donor board and replace this part, or do I need a new board?

Thanks for your response!