What Is a Stuck Pixel?
What is a stuck pixel on a monitor?
What is a stuck pixel? It is a pixel where one or more sub-pixels stay on or off, so it shows a fixed colour such as red, green, blue, cyan, magenta or yellow instead of following the image.
How to find stuck pixels
Use black and the primary colours in the colour test. A stuck pixel stands out on black and on colours that differ from its own.
Fixing a stuck pixel
Rapidly changing colours over the pixel can free it. Try the stuck pixel fixer, and read how to fix a stuck pixel.