What are some common computer screen problems?

Common computer screen problems are stuck or dead pixels, transient persistence also known as residual images, blank or blurry display and monitor producing flickering lines or waves. When a pixel does not receive a voltage, it remains black and unresponsive. This is the dead pixel.

When the dead pixel problem affects a group of pixels, the screen appears to have big black patches when turned on. Residual images occur when an image gets stuck on the display becoming a permanent residual image on a section of the screen.

Another common computer screen problem is the blank or blurry display. Blank displays could be a result of a power or graphics card issue. Flickering waves on the screen is a sign of a failing monitor, electrical disturbance or line noise.