Dead pixels can be annoying and detract from the overall viewing experience. Let’s take a look at how to fix them.
What is a Dead Pixel?
Before you try to understand what a dead pixel is, it’s first essential that you know how a TV works. A TV screen consists of thousands of pixels that work together in order to create an image. These pixels consist of three subpixels, which are red, blue and green. By varying the level of light projected to each subpixel, the television can project the correct image to the screen.
Now that we understand how a pixel should work, now we can start to understand what exactly a dead pixel is. If you are seeing a small (or large) area of discolouration on your screen that appears to be stuck on a single color, you’ve got a bad pixel. This can mean either one of the pixel/pixels subpixels are not working correctly. If the pixel/discoloration area is black, it’s dead. This is what happens when all three of the subpixels do not work. After you’ve made sure the ‘dead pixel’ is not simply an area of dirt on the screen by wiping it with a suitable soft cloth, you’re probably wondering whether there’s a way you can fix it without too much trouble.
Why do Dead Pixels Occur?
Although there is no way to be sure what may have caused your TV to get a dead pixel, there are several reasons why it may have happened. The most common of which is caused by a faulty power connection, where the transistor belonging to the pixel has failed to recognize the electrical voltages sent to it. If it cannot perform as intended, it will not know what light to display and will therefore be dead. In other cases, you may find it is a manufacturer defect. Although unlikely, it is possible if the TV is new, as the dead pixel may have managed to get past the assembly line undiscovered.
Another likely cause of a dead pixel is trauma. If you have a dead pixel due to trauma, you will likely already know why you have the issue. An accidental blow to a TV screen can easily cause a dead pixel issue.
Yet another reason for a dead pixel is leaving a static image on a screen for too long. For example, you may have fallen asleep with the menu of a streaming service on and woken up to find you’ve got dead pixels. There are also technical issues that may cause a dead pixel, such as phosphorus wear, but you’d be better off taking it back to the manufacturer if this is the case.
How to Fix Dead Pixels on Your TV
Now we understand a little about how television screens work and what causes a dead pixel, we can look at how to fix one. Some of these fixes are straightforward, and others may require a little more technical know-how. However, it’s worth noting before we proceed that some of these fixes may void your warranty, so proceed with caution, or refer to the manufacturer first if you’re unsure of your warranty period. Without further adieu, let’s get into it.
#1 Software and Web Apps
As we live in the age of internet connectivity, fixing a dead pixel on your TV might be easier than you think. Head over to a web-based program such as Dead Pixels Test, dead-pixels.com, Dead-pixel Check, or LCD Dead-pixel Test. Any of these programs will be easy to use and display solid colors, enabling you to spot dead pixels with ease.
Once you’re sure you’re dealing with a deal pixel and have located it, you can run a program that will attempt to unstick it/fix it. A good program we recommend is UDPixel. Although the process can take a little while to complete, the program will isolate and attack the pixel in question by forcing it to run through a series of colors rapidly. Another website to consider is JScreenFix. JScreenFix works by turning your TV display on and off rapidly (approx 60 times per second!) and can cause pixels to come unstuck and force them to fix themselves.
#2 Factory resetting
An easy way to try and fix a dead pixel on your TV is to perform a factory reset on it. However, not a guaranteed way of fixing your TV; performing a factory reset is worth trying and can often fix various issues. If you’re unsure how to do this yourself, consult your manual or contact the manufacturer.
#3 Check your Warranty
Perhaps the first thing you should do before anything else is to check your TV’s warranty. If you’ve still got your receipts from your purchase, this should be easy to check and will cut out a lot of the work of having to fix it yourself. Failing this, you may be able to find somewhere local that will be willing to fix it for you, but it will likely cost you a fair bit more than it would for the manufacturer to do.
#4 Get a Screen Replacement
Fairly self-explanatory with this one. If you’re dealing with quite a few dead pixels or just feel it may be time for a new screen in general, you can look into getting a screen replacement at either a local establishment or with the manufacturer.
#5 Apply Pressure
If the dead pixel results from a faulty connection, applying a little pressure to your screen could help fix it. Note: do not apply direct pressure with your hands or any other body part; instead, find something small like the end of a pen and put a towel or tissue over the back to soften it. With the TV off, apply a little pressure to the affected area. You can also try rubbing the pixel gently with your finger, which may seem a little strange, but it has been known to work. If you do choose to try this, make sure not to apply too much pressure as you could end up causing more damage.
Two other methods worth a try are tapping the pixel, and massaging it. Both should be performed with the TV off and should be done carefully not to damage other surrounding pixels.
How to Fix Dead Pixels on Your TV – Overview
If you’ve been following the above steps, you should now have a working TV again. It is possible to fix a dead pixel either yourself or the manufacturer, and hopefully, this guide has helped.