Could the old display have damaged anything when it was in the machine? I would say that about 1/3 of the display is significantly outgassed and it looks like it has been like that for a while.
was the old display working in the machine when you pulled it out to replace it ? or was it completely dead?
if it was completely dead then you will have to look for the reason why it was dead in the machine you have fit the new display in if 2/3 of the display is still working when its connected to another machine.
