New
#11
intermittent pixels LCD stands for liquid crystalized display and that is because pixels have a liquid crystal in them. , Black would of meant that there is no light going through any of the RGB pixels on that area or effectively dead pixels and green is going to mean only green is working.
they are probably dying or the backlight for those pixels are is dying not much you can do about it unless you want to open the computer and inspect the pcb around where the laptop folds as it could be connection issue i would guess the pixels are dying in that area though.
Once they die that is it though need a replacement screen or just live with it.