21/9 Screen Dead Pixel Fix (3440x1440, 2560x1080, WFHD ultrawide displays...)
This dead pixel fix video aims at fixing dead pixels on screens with an aspect ratio of 21/9 (3440x1440, 2560x1080, WFHD ultrawide displays...). To to fix dead or stuck pixels on your screen, simply play this video full screen on full brightness for several hours in a row. Your screen will display plain colors at a high refresh rate (24 images per second) to try to wake your dead or stuck pixels up. For more information, check out our article on how to test your screen for dead pixels. Not sure what a dead pixel is? Check out our article explaining what a dead pixel is.
What is a dead pixel, what is a stuck pixel?
Before we let you know how to fix dead pixels on your screen, we need to make sure that you know what a dead pixel is. Any modern screen, whether it is an LCD or an OLED screen is in fact composed of a large number of dots. Each of these dots can turn on or off and switch to different colors depending on the image that you computer wants to display. These dots are called pixels. No, we have made an extensive article on the topic, but here you should distinguish dead pixels from stuck pixels. A dead pixel is commonly a dot on your screen that remains black, whatever the image displayed is. Pixels can also be stuck on different colors. For more information on dead pixels and stuck pixels, we strongly encourage you to check our extensive article on the matter. You'll find out everything there is to know about dead pixels.
How can I check if I have dead pixels or stuck pixels on my screen?
The procedure to run a dead pixel test is quite simple. First make sure your screen is clean. Then use our dead pixel test to display colors on your full screen. Carefully inspect your display for any badly displayed dot. In case our dead pixel test did not work for you, we also have a series of dead pixel test videos that probably are better for you in case you're browsing from a smartphone or any other mobile device. Don't forget to check our article on how to test your screen for dead pixel before you run a test to make sure you do it properly.
How can I fix dead pixels on my screen?
Once you’ve identified dead pixels on your screen, there are a few things you can try. Please acknowledge that it is easier to fix stuck pixels than dead pixels. The most probable cause for a dead pixel is a dead transistor. Hence the electric current cannot pass by it anymore. Stuck pixels however are still capable of working, they are just stuck to one color on the RGB spectrum. It is important to note that these methods may not work for all dead pixels and that attempting to fix a dead pixel can sometimes cause further damage to the screen. If you are unsure about how to fix a dead pixel, it is recommended that you seek the advice of a professional. Taht being said, here are four dead pixel fix tricks that might help you (try them also on black pixels, you never know):
Try to stimulate the dead pixel with a video
You may try to use one of our dead pixel fix videos above. The idea is to flash colors on your screen at a high frequency to try to wake the pixel up. First, go to this webpage and select your screen aspect ratio. Then set your screen brightness to 100% and play the video full screen. Please note that this technique might take several hours to work. Be patient and do not stop the video from playing. It is also the safest way to try to fix dead pixels.
Try to gently tap on the dead pixel
Gently tapping the screen around the dead pixel can sometimes cause it to return to normal.
Try to apply pressure on the dead pixel
If the above technique did not work for you, try this at your own risk. And start by turning your screen off. Then grab a soft cloth and gently apply pressure on the dead or stuck pixel that you’re trying to fix. While maintaining the pressure, turn your screen back on and see if the dead or stuck pixel is working again.
Try to apply heat on the dead pixel
Work this with great caution! This method might work in desperate situations, but might seriously damage your screen. Applying heat to the dead pixel can sometimes cause it to return to normal. This can be done using a hairdryer, a heat gun, or a heat pad.
Dead pixel fix did not work for me. Are dead pixels covered by warranty?
When it comes to dead pixels, it is important to understand the terms of your warranty or guarantee. Dead pixels are often considered a manufacturing defect and, as such, may be covered under the terms of your warranty. However, the specifics of what is covered and for how long can vary greatly between manufacturers and products.
It is important to read the fine print of your warranty and understand what is covered in the event of a dead pixel. Some warranties may only cover dead pixels that appear within a certain time frame after purchase, while others may have specific conditions such as a minimum number of dead pixels required to trigger coverage.
It is also important to understand that warranties may only cover the repair or replacement of the screen or display and not the entire device. In some cases, the cost of repair or replacement may not be covered by the manufacturer and you may be responsible for the costs.
If you do have dead pixels on your screen and your warranty covers the issue, it is important to contact the manufacturer as soon as possible. They may require you to send the device in for repair or replacement, or they may offer a more convenient solution such as an in-home repair or an exchange.
In conclusion, it is important to understand the terms of your warranty and to familiarize yourself with the specifics of coverage in the event of a dead pixel. Being proactive and understanding your rights can help ensure that you get the best outcome in the event of a dead pixel on your screen.