A dead pixel can be a result of 2 different defects depending on the display panel your laptop screen uses.
There are two types of panels: the Twisted Nematic (TN) and In-plane switching (IPS). For a TN panel, the pixel is always on and voltage is applied to turn it off. For an IPS panel, voltage is used to turn the pixel on.
So a dead pixel on a TN panel means that constant voltage is being applied on the pixel while on an IPS panel, it means that no voltage is being applied to turn the panel on.
Most laptops have the TN panel since it is cheaper and has a faster response rate, the IPS panel is restricted to high-end laptops, but it has a better image quality.
You can check the type of panel your laptop uses by following these steps. Fixing a dead pixel on TN panel has a better chance of being successful.
A number of reasons can cause your laptop’s screen to have dead pixels. It could be:
1. Your laptop is aged
No laptop can work forever. Your laptop will show wear and tear when you have used it for a long time. Dead pixels can be a manifestation that your laptop is aged.
2. Mechanical damage
If you hit your screen quite hard, you can damage the pixels resulting in dead pixels.
3. Manufacturing defects
It is possible to buy a laptop and find that the screen already has dead pixels. This can be caused by errors made during its assembly.
Do Dead Pixels Spread?
It is highly unusual that dead pixels will spread on your laptop. They do not ‘go viral’. If a dead pixel has been caused by mechanical damage, chances are that it will spread if you keep applying the damaging force.
How do you fix this Dead Pixel on your Laptop Screen?
Can dead pixels be fixed?
Yes, you can fix dead pixels, but these methods are not guaranteed.
I shouldn’t have to say this, but you can’t fix dead pixels on your laptop screen by whacking it repeatedly.
It is possible to have dead pixels so tiny that you do not notice them.
There is a way to detect them using an application called “
dead pixel buddy”. The application will make your screen’s background color uniform so that you can detect a dead pixel easily.
There are several ways in which you can fix dead pixels on your laptop’s screen.
1. Ignore it
Yes, I know how unhelpful this first suggestion sounds, but hear me out.
If you’re patient enough, you can wait for hours to days for the pixel to fix itself. If this does not happen, then you can follow the steps below.