How to Care for Flat-Panel Computer Monitors


Learn about care of liquid crystal display (LCD) flat-panel monitors for desktop computers, with plastic screens that can be damaged much more easily than the traditional glass-screen monitors and require special cleaning procedures.

Critical Concepts



Steps to Take

Clean the Screen

  1. Unplug the power supply.
  2. Lightly dampen a clean, soft, lint-free cloth.
    • Use
      • Water
      • IPA (isopropyl alcohol)
    • Don't use
      • Acetone
      • Ethyl alcohol
      • Toluene
      • Ethyl acid
      • Ammonia
      • Methyl chloride
  3. Wipe the screen gently back and forth, not in a circular motion.

Clean the display case

Check for bad pixels

If there's a black, green, or red patch in the screen, one of the transistors is probably damaged. 

For more information, contact the UC San Diego Bookstore Repair Shop