A dead or stuck pixel on a TFT, OLED, or LCD screen can be incredibly annoying. You’ll be staring at it for days on end. You’ll be wondering how long it’s going to take to have your screen repaired or get a replacement. All that grieve over something as unimportant, yet highly irritating as a malfunctioning pixel.
Before you run the item back to the store though, you should try to see whether you can fix it yourself! This, if done carefully, will not hamper your warranty and might save you a lot of time and worries. So let’s see what you can do yourself.
Test New Screens for Stuck or Dead Pixels
Yes, you should test any new LCD, OLED, or TFT screen for dead or stuck pixels. You can simply run your monitor through a palette of basic colors and black and white in full-screen mode. The software, which we’ll get to in a second, can do that.
Stuck or Dead?
So what if you spot an odd pixel? Is what you’re seeing just a stuck pixel or is it in fact dead?
A stuck pixel will appear in any of the colors that its three sub-pixels can form, i.e. red, green, or blue. In a dead pixel, all sub-pixels are permanently off, which will make the pixel appear black. The cause could be a broken transistor. In rare cases, however, even a black pixel may just be stuck.
So if you’re seeing a colored or white pixel, you might be able to fix it. And if you see a black pixel, chances are low, but there is still hope.
Let’s turn to the methods to fix a stuck pixel. If you’re not on Windows, scroll down for some online tools!
How to Fix a Stuck or Dead Pixel
Unfortunately, you can’t fix a dead pixel. You can, however, fix a stuck pixel. And as I explained above, it’s hard to tell the two apart. So either way there are three general methods you can try:
- First, identify dead or stuck pixels by viewing your monitor in different color palettes.
- To fix a stuck or dead looking pixel, use a third-party tool to flash the pixel with multiple colors. We recommend UDPixel (Windows) or LCD (online).
- Finally, you can try a manual method that involves rubbing the stuck pixel with a damp cloth or a rubber (the kind you find on the back of a pencil).
Let’s look at these methods and tools in detail.
UDPixel, also known as UndeadPixel, is a Windows tool. It can help you identify and fix pixels using a single tool. The program requires the Microsoft .NET Framework.
With the Dead pixel locator on the left, you can easily detect any screen irregularity that may have escaped your vision until now.
Should you spot a suspicious pixel, switch to the Undead pixel side of things, create sufficient amounts of flash windows (one per stuck pixel) and hit Start. You can drag the tiny flashing windows to where you found odd pixels. Let them run for a while and eventually change the Flash interval.
LCD is an online tool that lets you find and eventually fix stuck pixels. It packs many options into a single tiny window, but once you have an overview it’s easy to use. This website requires Flash.
To test your screen, go through all of the colors — green, blue, and red — and check our screen. Additionally, you should check white and black. Press the ? & i button for background information.
Should you discover a stuck pixel, click the Fix My Screen button and let the color flashing graphic run for a minute or two.
By triggering each pixel’s different sub-pixels, the graphic may massage a stuck pixel back into life.
This is a very thorough test not only meant to identify bad pixels but also powerful enough to test the quality of your monitor.
You can choose between three different modes to test your monitor. This tool either requires flash (online version) or you can install it in the executable mode.
What you will need to just test for stuck pixels is the HTML window. Toggle full-screen by hitting F11. Here is what you should see:
Move the mouse to the top of the test window and a menu will appear. There is an info window that you can turn off with a button in the top right corner of the menu. Then click on the Homogenuity test point and move through the three colors as well as black and white.
Fingers crossed you won’t discover anything out of the ordinary. In the unfortunate case that you do, you may find the following online tool helpful.
JScreenFix won’t help you find a stuck pixel, but it can help you fix it. Just press the Launch JScreenFix button at the bottom of the page.
The tool will load a black browser window with a square of flashing pixels. Press the green button in the bottom right to go full-screen. Drag the flashing square to where you found the stuck pixel and leave it there for at lesat 10 minutes.
Manually Fix a Stuck Pixel
Should none of these tools resolve your pixel issue, there is one last chance. You can combine any of the tools and the magic power of your own hands. There is a very good description of all available techniques on wikiHow. Another great step by step guide can be found on Instructables.
But let’s go through one technique real quick:
- Turn off your monitor.
- Get yourself a damp cloth, so that you won’t scratch the screen.
- Apply pressure to the area where the stuck pixel is. Try not to put pressure anywhere else, as this may trigger the creation of more stuck pixels.
- While applying pressure, turn on your computer and screen.
- Remove pressure and the stuck pixel should be gone.
This works because, in a stuck pixel, the liquid in one or more of its sub-pixels has not spread equally. In combination with the backlight of your screen, this liquid is used to allow different amounts of light to pass through, which creates the different colors.
All Pixels Report to the Screen
Should all of these approaches fail to fix your pixel warrior, at least you’ll now know it’s not simple to fix and the screen may indeed need to be replaced.
How did your examination turn out? Did you discover a bad pixel? And were you able to fix it?
Please do let us know if these tips helped you to fix your pixels. In any case, good luck!