How to fix it my laptop screen got a black patch on its screen

How to fix it my laptop screen got a black patch on its screen
  • Jun 24th, 2022
  • Divya Sachdeva
  • Computer
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You have found a black patch on your laptop screen, you are not alone! Discovering a black mark on your LCD can be disheartening, but there are few steps you can take to get rid of it. So, if you are here to know how to fix black patch on a laptop, Read this blog till the end without skipping any part.


The black spots are just surface blemishes that occur when dirt or other particles lie on the glass of your screen or due to some defects with the LCD pixels. They are not cracks or tears that may cause the display to fail in the near future, and it’s certainly not an indication of broken glass. Even so, these can easily be fixed, it is crucial to have an accurate understanding of what causes the patches so you can take measures to prevent them from appearing again in the future.

Dirt or Debris


A laptop or LCD monitor’s screen is like a mirror, and it reflects the light from your laptop's display back at you. Black spots on display appear when small amounts of dirt and dust or smudges gather and are stuck to the surface. 


Sometimes, dirt may pile up on your laptop screen, which may lead to black spots on screen that become visible to the naked eye and grow larger over time and can cause problems with screen resolution if left untreated. 


These dirt patches are easily removable without causing any damage on the monitor. Although, failing to clean the dirt on a regular basis, more of them will occur and rapidly obscure more of your laptop’s screen, making the rest of the screen appear duller by comparison.


Though such black marks will not reduce the quality of the display of your LCD screen and cause any damage to the internal circuit of the monitor, they are very annoying. But still these dirt patches affect the screen resolution of your laptop.


The quick method to get rid of these spots is to clean your screen with a moderately dampened microfiber cloth or soft eraser. Consider that you do not apply pressure while rubbing the display; instead, wipe it with gentle and circular strokes to avoid scratches and leftover marks.


Pixel Defects on a Laptop Screen: Dead Pixel vs. Stuck Pixel

Different types of pixel defects happen on LCD screens, including dead pixels and stuck pixels. Figuring the problem correctly will help you to choose the correct methods to resolve it that will not result in damaging the screen any further. When you understand which defects it is, it becomes easy to find a solution on how to fix these black spots.


Most laptops have some pixel issues in them. The number of defective pixels you see depends on the screen resolution – the smaller the resolution, the larger they seem. In most cases, they are not noticeable because of regular use, you can’t see them with your naked eyes as they are not bright spots, and if your laptop is free from pixel issues when you purchased it, consider yourself lucky.


Laptop screen manufacturing technology has improved dramatically over the years, and today’s panels almost don’t come with any such problem.

Dead Pixel 

When a pixel gets permanently damaged, it fails to receive power, resulting in a dark or black patch on your laptop screen. This specific flaw can appear during the manufacturing process of a laptop screen, and it is sort of permanent, which does not recover over time. 


Nonetheless, one can rarely experience such defects on their laptop screens out of the box since manufacturers attempt to follow stringent quality control processes to make sure they deliver a non-defective product. On the other hand, it’s quite normal to notice dead pixels appearing on the screen over time, depending on multiple usage factors.

Stuck Pixel

Stuck pixels are able to be powered on, which leads to a permanently colored pixel. They can be any of these three colors – red, blue, or green. While dead pixels are pretty much a permanent condition, a stuck pixel might just go away on its own. You can remove this dificted pixel just by doing some simple steps.


How To Determine if it’s a Dead Pixel or Stuck Pixel?


Check the screen to spot the difference

Dead pixels are permanent pixels that remain powered off, meaning they will appear as black patches on the screen whenever you turn your laptop on. 

On the next side, stuck pixels are not dead and can receive power like other normal pixels;although, they always get stuck on a single color which is either red, blue, or green.


In a dead pixel, all three of the colored sub-pixels – red, blue, and green, are forever “dead” or turned off and can’t be illuminated, so it looks like a black spot to our eyes.


Use pixel-checking software

However, those who face such problems know that it's quite tricky to differentiate between dead and stuck pixels by naked eyes; therefore, you may need to look for other ways. If you are using a Windows laptop, install a free software named “InjuredPixels” – you can Google for its official website and download from there. Or if it’s a Mac, “LCD DeadPixel Test” is a browser-based tool (so nothing to download or install) that can help.


Spotting defective pixels is relatively easy using these third party apps. They run single solid colors on your display so that you can quickly find out the glitch pixel by matching the color of the rest of the screen real estate. You can further ensure whether it is a dead or stuck pixel (by considering the colors) before you attempt to fix it.

How to Fix Black patch on a Laptop?

Stuck pixels are often temporary and usually go away after some time without requiring you to do anything.

Alternatively, you can let the laptop be turned off for about an hour and then turn it on. Repeat the process a few times and check for any changes in the pixels. This simple method is especially beneficial in case the stuck pixel shows when running a specific program and not other times.


In disparity, a black spot due to dead pixels is a more complex problem and hard to fix. You can find the few expert-recommended methods with comparatively higher success rates below.


1.Gently Rub the dead pixel area with mild pressure: 

If you find that your LCD monitor display has dead pixels, there are a few things you can try. One of the simplest things to try is rubbing it gently, particularly if the dead pixel is on the edge of your screen where it is barely noticeable. 


Before you try this technique, your panel must be clean and free of dust and debris. Simply wiping with a soft cloth should remove most dirt and smudges. Also, using an object with a circular end, such as a smartphone stylus, and placing a soft microfiber cloth over the problem spot during the process will greatly reduce the risk of causing more harm to the screen. 


2. JScreenFix (third party tool):

JScreenFix is a website that can help you with your dead or stuck pixel issues. No expensive equipment or software is required as using the site is 100% free. All you need is just your laptop and an active internet connection, and you are good to go. Below are step-by-step instructions that will walk you through the steps to resolve the problem!

  1. Leave your laptop powered off for at least two hours to ensure that its internal components are completely cool before attempting this fix.

  2. Now, start your laptop again and open on an updated browser. 

  3. Click on the Launch JScreenFix box

  4. Your screen will go dark, and a colored pixelated box will appear, which you can move around your screen easily using the mouse.

  5. Place the box in the problem area and let it do its job for around 10 minutes. You can let the program run for up to 1 hour if needed.


The box makes all the pixels within the region shift between multiple colors rapidly, forcing the dead or stuck pixels to be restored effectively.


I hope you understand your issue with the laptop screen and get the methods on how to fix such spots on the laptop screen. Before you start looking for how to fix black spots on a laptop, it’s crucial to figure out exactly what caused them. Usually the issues people face are minor, and the black spots on their screens are a result of dust and dirt accumulation, which can be fixed with a simple cleaning.


However, sometimes it might be a symptom of a larger problem, including dead and stuck pixels that may require professional help. Unless you know what you are doing, we recommend you take your laptop to an authorized repair service center or laptop exclusive store near your place to claim a replacement from the brand if it’s still under the warranty period.

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