Picture of Fix a stuck pixel on an LCD monitor
If you liked this instructable, then you'll probably like the other things on my site here... Voiding Warranties

UPDATE: This Instructable was on Engadget! http://www.engadget.com/2007/12/24/how-to-guide-details-fix-for-stuck-pixels/

I am going to show you how to fix a stuck pixel on your LCD monitor. Stuck pixels are really annoying and just plain look bad. Over the past few years I have had to fix SO many stuck pixels. It's not that hard to do and usually only takes a couple of minutes. Enjoy!

This will only work on LCD monitors, but this includes computer LCD monitors, laptop screens, cameras (the screen might have a hard protective shield over it that you will have to take off), and hand-held systems (will most likely have a hard protective shield). Does anybody know if this will work with an OLED screen? I think that it will, but I'm not positive.

Note: This will only fix stuck pixels. Not dead pixels or hot pixels. A dead pixel is when the pixel is always off. It is easiest to spot a dead pixel against a white background. The pixel will appear to be non existent. It will look darker than the stuck pixel in the image below. A hot pixel is when the pixel is always on. It is easiest to see against a dark background. The pixel will be bright white. A stuck pixel will usually the red, green, blue or yellow, but can also be a light black color (pictured below). A stuck pixel is caused by a manufacturing defect in which it leaves one or more sub-pixels permanently turned on or off.

By the way, the picture that I took is a bad example of a stuck pixel. Because it is black, one might think that it is actually a dead pixel but it is not. It just so happened that all of the sub-pixels in that pixel were permanently turned off. The next time I see a dead pixel on a computer that isn't black, I will update the picture because the current one is a bad example.

PS: This is my first Instructable so please be nice. :)
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HarryK31 month ago

Thx..Pressure method worked for me

I asked in Tom's hardware and they asked me to visit this page.

My display has been running great for 4 whole years, and then yesterday it suddenly developed a very bright red spot in an edge. It was annoying, my eyes would always go to that spot, the more i tried to avoid the more i found myself looking at it.

I tried the pressure method first, didn't work.

I tried the rub, tap method, didn't work.

I tried UDPixel for one hour, didn't work.

I fired up UDPixel again, and left it running overnight.

And viola, the stuck red pixel has disappeared and the screen looks perfect again!

I really had my doubts that this'd work, it's a hardware problem, and a software generally cannot fix hardware-hence I tried the pressure methods first.

But who woulda known, it really worked!

Thanks Einsteins Circuitry you managed to add more life to my 4 years old laptop :)

I signed up just to thank you. Thanks, you really helped. Kudos. :)

AbrahamJ16 months ago

Nothing works :(

ektor51 year ago

Tried the third method using a smooth metal pen button (the click-click one!), and it worked after a few taps! Thanks! Finally my 4-year black pixel went away! Bye bye!

MrJLatino6 years ago
Hi, i have a question: can stuck pixels be fixed if they are all in a straight line that comes down across the screen? I m trying all these methods on my IMAC but its not working. Can you help me out?
As others have mentioned this is either a video card issue or bad/dying LCD column driver. The latter are not fixable (to the best of my knowledge.) while according to the poster above the former are a silent recall issue for the iMac.
Einsteins Circuitry (author)  MrJLatino6 years ago
Can you describe it more? Is it a vertical or horizontal line, or is it a diagonal line? Is it a solid line, or is it a bunch of stuck pixels that just happen to be in a line-like shape? If it is a solid vertical, or horizontal line, then it is a faulty lcd, and there is nothing you can do. Also, is your iMac the newer one that is aluminum and black? If it is, than the display has a glass/plastic plate over the lcd making method 2 & 3 useless.
I think he means like screen burn-in...
LCD's can't burn in, he just got a broken LCD screen
Actually, he has a video card issue that is well known for iMacs. If you take it to an Apple store they will fix it for you.
I haven't really ever had a stuck pixel. Must be all the shaking and stuff. Treat you screen like an etch-a-sketch is what I got out of this.
I heard someone say to try moving a magnet piece near the stuck pixel..
don't use a big one or you need to get a new coputer.
i just named mine "Pete" and left him alone.
I have two named "Joe" and "Phil".
rcguymike4 years ago
@color 90
@color C0
@color A0
@color F0
@color 00
@goto A

much better colors, light blue, light red, light green, white, black, and repeat. This will use quite a bit of cpu because it is an endless loop executing as fast as the cpu can command it.
Thank you for using a mac, they are the best. As I'm sure you know
That is just your opinion. I think Macs are terrible. Overpriced with poor hardware and keyboards that give you RSI. Windows for the win, atleast for me. (Yes, I have used a mac with snow leopard so i know what i am talking about.)
Their better for games but not so much other things.


for the sake of argument... go pc.
I have both mac mini and 2 CPU 8cores Xeon self build they are both good for certain things
I have a quad core windows PC.
After a few weeks it got slow, then snowballed over a few months until it completley crashed giving me "disk read errors".
BTW Ubuntu works fine and dosent give me errors, but I cant use it 'cos my wifi adapter isn't compatible. :(
that is still only 4 cores I have 2 processors to run windows at acceptable speed :-)
You can use the NDIS wrapper with the original Windows drivers to activate your Wireless. Linux, Windows, I'd even return to DOS before I used a Mac. Why someone would be 'proud' to own one is beyond me. Like being proud of riding the short bus.
who is proud?
yea! I have found someone besides me who realizes how pathetic Macs are!
Right out of the box they already do everything they will ever do. This is a plus or minus depending on what you want.
actually, Ubuntu would be the best, being that it's free :)
They are not so good if they get broken pixels.
killbox7 years ago
>PS: Beetlegossip suggested that you could also go into Notepad in >Windows >and then create a batch file and write this, > :>A >@color 0f >@color f0 >@goto A name that something like test.bat and then run it, hit alt+enter to make it full screen, this is not as good as the color option but it does make it flicker white and black.
If you wanted a change in colors you could put something like, @color 53 @color 35 @color 23 @color 32 The possibilities are endless in a bat file! PS: You should see if the same thing works on a mac
When I tried to make the .bat file, it didn't work. When i clicked run, the cmd prompt window opened and then closed, i didn't have enough time to do anything. Do you know why?
Type the cmd command in Run... Hit enter and the terminal will stay open.
Perhaps you have an existing .bat file that has corrupted the earlier data? If not try recreating the .bat file. I suggest something simple like :A @color 0f @color f0 @color 0f @color f0 @goto A Then save the file as a .bat on your desktop which I am sure you know how to do. If this doesn't work then I have no idea what to do. After all I am only in 10th grade... Still learning about stuff
cool...im in 9th grade
cool...im in 7th grade
me 2 !!!
and vista?
that would have taken me like an hour to write something similar in java, thats pretty amazing.
you might have copied extra text. a letter or 2 extra can sometimes cause the program to exit
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