A pixel on your computer monitor or TV screen may be a very small ... A dead pixel looks black, and in most cases cannot be fixed, since there is no power going to any of the subpixels.

A dead pixel can be a huge pain, whether it's on your smartphone, desktop monitor, or laptop ... it is receiving no power. So long as you don't have a ton of them, you can easily ignore dead ...

5K is the future of computer monitors ... default backgrounds used by the operating system. Their resolution is a mere 1,980 by 1,200, which means they contain around a sixth as many pixels ...