What Causes Black Marks on Computer Screens?

Learn the reasons behind black marks on your computer screen and how to fix them effectively.

98 views

A black mark on your computer screen could be a dead pixel, which occurs when a pixel on the screen stops lighting up. Try using a pixel-repair tool to revive it. Alternatively, it may be dirt under the screen or a pressure mark caused by impact. Gently clean your screen with a microfiber cloth and see if it helps. If the issue persists, consult a technician to diagnose and fix the screen problem.

FAQs & Answers

  1. How can I tell if the black mark is a dead pixel? A dead pixel is usually persistent and doesn't change when displaying different colors. Try testing it with a pixel checker tool.
  2. What should I use to clean my computer screen? Use a microfiber cloth and a screen-safe cleaner to gently wipe the screen, avoiding harsh chemicals.
  3. Can dirt cause black marks on screens? Yes, dirt or debris under the screen can appear as black marks, which can usually be cleaned off.
  4. When should I consult a technician for screen problems? If cleaning does not resolve the issue, and the marks persist, it’s best to consult a technician for further diagnosis.