A dead pixel is a picture element that no longer lights up, leaving a permanent black spot on the screen.
Dead and Stuck Pixels: Causes and How to Fix Them
If you suspect you have one but aren't sure, investigate further with tools like the Dead Pixels Test or CheckPixels.com. These programs often display solid colors across the entire screen, making it easier for your eyes to spot pixels that aren't working properly.
Dead pixels can’t be repaired in most cases, but sometimes you can bring those pixels back to life. We have a few solutions you can try before sending your device in for repair.
A dead pixel occurs when the transistor that powers the pixel stops delivering power. This causes the pixel to remain permanently black and never light up.
