After running it for over an hour, I can confirm that baking the LCD does indeed work to treat (although hopefully it is a functional cure) what I like to call "The Creeping Black Plague"! Before if I had run it for 15 minutes The Plague appeared.
However, at the temp I used, 350 F, the polarizing film on each side of the screen was destroyed, although the actual liquid crystal and the electronics were intact. So, a lower temp of 220 is recommended (as was actually written above, which I completely misread, because I am apparently blind).
It looks like moisture contamination is indeed our culprit and it can be reversed!
However, at the temp I used, 350 F, the polarizing film on each side of the screen was destroyed, although the actual liquid crystal and the electronics were intact. So, a lower temp of 220 is recommended (as was actually written above, which I completely misread, because I am apparently blind).
It looks like moisture contamination is indeed our culprit and it can be reversed!