LCD monitors contain millions of pixels, each one composed of three subpixels: red, blue, and green. When all three are on, a pixel looks white. Other combinations create other colors. A pixel can ...

I bought a new LCD TV today. When the screen is black, I can see one bright white pixel right in the centre. I ran a "dead pixel scanner" program which cycles through various colours, and the pixel ...

Display issues with your computer can make it hard or impossible to use your machine. If you see odd behavior coming from your screen, reboot the computer to see if the issue resolves itself. Should ...