How to fix stuck LCD pixels ?

August 28, 2007 at 11:46 6 comments

LCD screenStuck pixels on LCD screens are an unfortunate reality. If you’ve never had to deal with stuck pixels, you have to know that these little screen defects are usually caused by malfunctioning transistors or an uneven distribution of the LCD liquid inside the display. Fortunately, this problem can usually be fixed.

Note: There’s a (big) difference between a “dead” pixel and a “stuck” pixel.
As you might know, an LCD pixel consists in fact of 3 liquid crystals: a red, a green and a blue one. If one of them stay lit, we have a “stuck” pixel. If one of them stops working, we speak about a “dead” pixel.

It is possible to get those stuck pixels in working order again via a simple (and free) piece of software…

A few software solutions exist out there that will try to re-activate stuck pixels. Here are a few free ones:

Please note: these tools won’t fix dead pixels.

  • UDPixel: Free application that rapidly changes all pixels located around a stuck one.
    Just keep it running for a few hours and see if this eliminates your problem.
  • JScreenFix: Web-based application that turns all pixels on and off about 60 times per second.

There are a few physical methods too if either of the above doesn’t work, but don’t blame me form cracks or scratches 🙂

The pressure method

  1. Start by turning off your monitor.
  2. Find a pen that has a rounded, dull end and get a slightly damp cloth to protect your screen.
  3. Fold your cloth in two so that you do not puncture it accidentally. You don’t want to scratch your precious screen, do you?
  4. Put the cloth in front of the stuck pixel and start applying slight pressure on it with your pen. Do not put pressure anywhere else than on the defective pixel, or you may break additional ones.
  5. Continue applying pressure, and turn your monitor on.
  6. Remove the pen from the screen, and voilà! The stuck pixel should be gone.

The rubbing method

This one is easy; just gently rub the defective pixel with one of your fingers, and hope that this will reset it.

The tapping method

  1. First, display a completely black picture on your screen. The display has to be turned on for this to work.
  2. Use a small pointed object that has a dull, rounded end and gently tap on the stuck pixel until it starts working again. You’ll know if you are applying enough pressure if you are seeing a small, white glow each time you hit the screen.
  3. Display a white picture to verify that you haven’t broken additional pixels.

Please note that none of these methods are guaranteed to work, so you employ them at your own risk.

Unfortunately, LCD manufacturers will not replace your display because you have a few stuck or dead pixels on it. It takes much more than that to convince them to ship you a replacement unit, and unfortunately, by the time your display will be damaged enough to get a free one, your warranty will have expired.


Entry filed under: Technology.

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6 Comments Add your own

  • 1. lin  |  May 14, 2008 at 17:21

    i think that The rubbing method This one is easy; just gently rub the defective pixel with one of your fingers, and hope that this will reset it.

  • 2. dead/stuck pixel  |  June 26, 2008 at 20:02

    […] it’s dead it’s dead but if it’s stuck on a colour then rubbing might help. See here __________________ Operator: Dave Operating System: XP Professional SP2 Processor: Intel E6750 […]

  • 3. Knave  |  July 6, 2008 at 11:38

    what is this suppose to mean? 😦

    none of the programs worked…
    those are not dead pixels? those are pieces of LCD himself?
    reply plz..

  • 4. Stef Andries :: RemoveStringFromobject  |  July 7, 2008 at 19:48

    @Knave: The picture seems to show that you have physical damage to your LCD screen. No tool will be able to fix this…

  • 5. george lopez  |  October 10, 2008 at 16:15

    how long stays fix because it worked for me ?

  • 6. Jame Alonso  |  May 28, 2010 at 06:47

    You’ve done it once more. Incredible post!


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