I have a column of bright pixels on the display (1680x1050) of my Macbook Pro 15" mid 2012 (non retina). This is actually a wedge shape; 4 pixels wide at the top of the display, 1 pixel wide at the bottom. The original LCD started to die a few years ago (columns of dead pixels), so I replaced it myself. As soon as I replaced it I noticed that it was not as bright as the original, but I accepted that as the price of buying a cheapish panel from China. A few days ago this wedge of bright pixels appeared on the left hand edge of the display. It looks a bit odd, but it has made me wonder whether the panel was actually fine all along and something else has been stopping it achieving peak brightness. Does anyone know what might be causing either the panel to be mostly dark, or this bright wedge of pixels?
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