How to Dust an LCD TV

Written by andrew copley
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How to Dust an LCD TV
Dusting your TV gives you a clear picture (rural landscape on flat screen tv image by javarman from

Dusting your LCD, or liquid crystal display television, is a simple task. However, it's advisable to not wipe the TV screen with glass cleaner. The screen is a thin-film, transistor liquid crystal display that is very susceptible to damage. Think of it as a liquid circuit board with a thin, flexible membrane stretched over it. Too much pressure or the wrong cleaner easily can damage the set.

Following a few simple steps will help keep your television looking like new.

Skill level:

Things you need

  • Small mist spray bottle
  • Rubbing alcohol
  • Cotton cleaning cloth
  • Dust cloth
  • Can of compressed air
  • Half-inch paint brush

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  1. 1

    Turn off the TV and unplug it from the wall. Let the TV cool down for 15 minutes. Putting room-temperature liquid on a warm screen will cause rapid changes in the liquid crystal. Use this time to move your TV out from the wall. Use your half-inch paint brush to brush dust out of the cooling vents in the back of the TV. Wipe down the back of the TV to remove most of the dust with your dust cloth.

  2. 2

    Once or twice a year you should blow out the dust that collects on the circuit boards inside the TV. Look in the slots. If your unit does not look very dusty inside, move onto the next step. If there is a lot of dust inside, you should clean it. Removing dust from the electronic components allows the heat to escape, saving wear and tear on the circuits.

    Blow air using the can of compressed air into the cooling vents on the right side of the TV for a few seconds. Repeat the process blowing into the cooling vents at the top of the TV. Blow air into the cooling vents on the left side. This will clear the dust off all sides of the components.

  3. 3

    Using your dust cloth, wipe down the entire TV surface, front and back including the stand. Do not wipe the screen with the dust cloth to avoid accidental scratches. Take your cotton cleaning cloth and gently wipe down the LCD screen. Do not put pressure on the screen.

  4. 4

    Fill the spray bottle with rubbing alcohol. Never spray liquids onto the TV to avoid leaving spray marks on the screen. Using the mist setting, spray the rubbing alcohol on your dust cloth until it is evenly moistened. Wipe down all the plastic parts of your TV. A second application of the dust cloth may be necessary for grease stains.

  5. 5

    Moisten the cotton cleaning cloth by spraying the rubbing alcohol over the cloth from six inches away. This method allows the cloth to be evenly dampened, giving you a more even wipe with the rubbing alcohol. Wipe the screen of your TV without putting pressure on the screen. You may have to go over a few areas more than once in order to remove greasy finger prints.

  6. 6

    Slide the TV back into place and plug it in. Wait a few minutes to make sure the rubbing alcohol has completely evaporated before turning it on to watch.

Tips and warnings

  • Reduce static in your home.
  • Label and keep your TV cleaning supplies separate from the rest.
  • Keep the rest of the room clean and dust free.
  • Turn off fans and close windows before dusting.
  • Don't use water, solvents, chemicals or even a regular dust cloth. They can scratch the fine coating on the screen.
  • Don't turn the TV on as this will put you at risk for electrical short if moisture drips down the screen into the unit.

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