Do you have the LVDS cable? A 6bit-1CH LVDS has different pin population that for instance a 8bit-2CH. Vcc and GND are at different locations and a wrong cable could potentially fry your LCD.
I am on my phone without my glasses, so I can’t see very well but on the imgur picture it looks like a 8bit-2CH cable while a 1366 resolution seems more like 6bit-1CH (just a guess from my little experience with LCD panels, don’t take it as a fact).
Have you tried to hook it back up to the old laptop to see if it’s still working?
Also, have you flashed the right firmware for the controller board?