Screen issues post repair topic

My Nexus 5 after a screen replacement seems to be working fine mostly. Except when the phone heats up (battery temps > 32ish) the screen stutters and moves up and down when I am not touching the screen and it is on. Then it gets worse with more aggressive shaking and stutters as I use it more.

Any ideas on what this could be?

- Jwizzled via hammerhead