Chosen Solution
Hello! I recently removed the screen of my 27” iMac to replace a dead HDD with a new SSD. After the repair, there are pixels that are “stuck” along the left and right edges. They do not appear when the display is a bright color, but they are very visible when the display is black. I am wondering if this is likely LCD panel damage, or perhaps a cable isn’t seated all the way? Just curious of thoughts on this issue. First image is on light background, second is on black.
Did you follow our guide? iMac Intel 27" Retina 5K Display Display Replacement Did you use the special pizza cutter? iMac Opening Wheel Often the display gets damaged by using the wrong tools and/or stressing the display when taking it off. Update (01/24/2020) What I suspect happened is you pressed up with a object which had a slight bump during the prying action this bump pressed along the back of the screen causing the liquid crystal to be squeezed out at this location of the pressure. Thats why you have a white make as the backlight is not being blocked by the polarization of the liquid crystal material. Most of the time I see more of a line of a screwdriver blade or spatula press than a dot as you have. Being small it’s possible they will fade over time as the liquid will ooze back as long as the back plate is not bent. Otherwise you’ll need a new display.
