Dead pixel on the monitor what to do. What are dead pixels and how to deal with them. Dead pixel checker

Question from user

Hello.

I have some kind of white dot in the center on my monitor, and another red one in the corner. The one in the corner - I don't care about it, but in the center - sometimes it annoys and interferes. When a color picture is shown, it is not so noticeable, but with a monochromatic (and especially dark) picture, it does not look very good.

They refused to repair the monitor, they say that you can’t restore these broken pixels (it’s easier to buy a new monitor). Is this true, and is it possible to somehow remove these points, restore broken pixels?

Michael.

Good day!

In fact, one of the common problems with monitors is the appearance of dots on the screen that do not change their color (ie do not work). Most often, they glow with just plain light: white, dark, red, etc. Such pixels on the monitor are called beaten .

In this article I will try to answer both your question and the same type related to this topic. I'll show you how to check your monitor for these dead pixels, as well as a few recommendations that can bring such pixels back to life. So...

To help!

Monitor check: do a test for dead pixels

A few important points

If you think that dead pixels can only appear on old monitors, then you are deeply mistaken ... It's even more annoying when you buy a new large monitor, and then in the process of working you find that one pixel in the center does not "burn" (more precisely, it burns red) . And what's even more offensive is that you most likely will not be able to return such a monitor back under warranty!

Important!

According to the standard, monitors are divided into different classes (I, II, etc.). Each class is allowed a certain number of dead pixels, and until this number is exceeded - this is not a warranty case!

Therefore, be very careful when buying a new monitor, I recommend that you test it right in the store!

One of the tables with the allowed number of dead pixels is shown below. In general, IV - class is essentially a marriage (and they are not available on the mass market), most often, an ordinary home monitor is a class II or III device. Therefore, for delivery under warranty - you need at least 2-3 dead pixels. This is all to the fact that checking when buying is very important!

How many dead pixels are allowed on the monitor (depending on its class). Important: This plate is just an example, non-compliance regulations change frequently.

And so, now about how to check ...

The essence of the check: you need to fill the screen alternately with different colors: white, red, green, black, etc. With each fill, be sure to carefully examine the entire surface, if there is any point that stands out from the rest. See 2 photos below, they show very well what to look for.

It is best to "fill" the monitor with multi-colored paints using special utilities. One of the most convenient is IsMyLcdOK (more on that below).

With the help of the program IsMyLcdOK

One of the best utilities for checking the monitor for dead pixels!

The utility is very simple and does not need to be installed and configured. It weighs only 36 Kb, and it can be written to any medium. After starting - you just need to press the numbers on the keyboard: 1, 2, 3, etc., or the Ctrl key - and the entire screen will be alternately filled with different colors. All you have to do is watch what is happening.

Thus, using IsMyLcdOK, you can evaluate the state of the monitor in a few minutes. Definitely recommend to use!

The main advantages of the utility:

1. small size - only 36 Kb, can be written to any flash drive;
2. nothing needs to be installed or configured - just run and press one Ctrl button;
3. The utility is free and works in all versions of Windows.

Online way

Monitor Test

A very simple and effective utility that can revitalize (restore) dead pixels. The utility is free, works in all versions of Windows, takes up very little space. In addition, with her work, you can simultaneously go about your business. That is why I fixed my eyes on her ☺.

How to work in it (step by step):

Method number 2: discharge ...

This method can in some cases help restore the pixel. Its essence is to disconnect the monitor from any power source and let stand for several days (recommended 4-5 days!).

If you have a laptop: disconnect from the mains, remove the battery, disconnect all wires going to the device (network cable, mice, speakers, etc.). That's it, leave the device in this state for a few days.

If you have a regular PC monitor: Also disconnect it from the network and from the computer.

If you leave the device in this state for these 4-5 days, then all the capacitors in the device will be discharged, the residual voltage will leave the thin-film transistors. And when you connect the monitor to the power supply and turn it on, the stuck pixel will be shaken, perhaps it will return to "life" (I note right away that this method does not always help, in about 5-15% of cases).

Method number 3: mechanical pressure

If the software method did not help, try taking a cotton swab (or a pencil with an eraser on the end). Then set this wand or pencil approximately in the center of the broken pixel and press lightly (if streaks appear on the screen, remove the object).

If the pixel has not started working, repeat the operation (you can slightly increase the effort). So try doing 20-50 iterations.

Also, try to turn off the monitor completely, then press on the place where there is a dead pixel, and then turn on the monitor. In some cases, a "stuck" pixel wakes up and starts working as expected...

That's all for me, for additions on the topic - I will be very grateful.

But now, having bought a new monitor and said goodbye to the old “box” forever, you begin testing it. In the course are games, films and all kinds of improvised means. And suddenly you notice a black or colored dot right in the middle of the screen, terribly disturbing with its pink color when watching your favorite thriller. This, gentlemen, is His Majesty. The dead pixel is a thunderstorm for all developers and a dead defect in computer stores. So, let's figure out what a "broken" pixel is, and a pixel in general, how to deal with it and how to find it.

What is Dead Pixel

The image on a monitor with a liquid crystal display, as well as with a cathode ray tube, consists of dots, in a narrow circle called pixels. It is they who add up to a variety of pictures that we observe through a change in color. The pixel also has its own non-replaceable hierarchy - three sub-pixels, black, red and green. The final color is achieved by changing the position of individual subpixels and directing a light beam of different power onto it. In modern monitors using the so-called active matrix, each pixel is controlled by its own thin film transistor (TFT, Thin Film Transistor), the failure of which forms a black inactive dot on the screen - a dead pixel. It does not change its color when changing the image precisely because of a technical malfunction of the control transistor. Such broken pixels can only be restored by replacing the corresponding transistor, which can only be done in special laboratory conditions, which is clearly not available to ordinary users.
However, there is another type of dead pixels - stuck ones. A sign of their appearance will be a bright dot on a dark background. This happens when a single sub-pixel is stuck in one position. Accordingly, it does not react to changing the image on the display, but glows with a certain light color. Such defects, unlike black dots, can be restored at home by some both software and physical manipulations.
You might be wondering why you need to repair a new monitor yourself when it comes with a warranty! This is where the whole rub is. The rejection rate of monitors using liquid crystal technology is very high, so leading brand manufacturers have set special standards that allow a certain number of dead pixels on monitors of various standards. These norms have been incorporated into a specific government standard called ISO-13406. Here is a table of the tolerance of defective pixels in 4 monitor standards (the 1st is the highest, practically does not allow defects; the 4th - fortunately, is almost never produced on our market).
As we have already said, the first class of monitors does not allow broken or defective pixels at all. Manufacturers of products of this class assure that if this defect occurs, an immediate replacement or warranty repair will be made.
The second class, the most common in the CIS countries, allows the presence of 2 defects of types 1 and 2, as well as 5 defects of type 3.
The third class of products, according to the developers, may have 5 broken pixels of the 1st type, 15 of the 2nd type and 50 defects of the third type.
The last and lowest quality class of monitors allows for 50, 150, and 500 type 1, 2, and 3 defects, respectively.

• Type 1 - white pixel on a black background;
• Type 2 - black pixel on a white background;
• Type 3 - colored (red, blue, green);

As you can see, if your monitor is Class 2 (you can find out in the instructions that came with it), the one red pixel that irritates you so much is acceptable, so you won't be able to exchange the monitor and file a claim with the seller. The only way to avoid such situations is to check the product before buying, because no one can force you to buy a defective product!

Monitor check

Determining the presence of broken or defective pixels by eye is sometimes difficult, if not impossible. Sellers demonstrate the monitor, showing you bright multi-colored pictures, not allowing you to see the display on different plain backgrounds. Remember, a dead pixel can show up on certain colors! For example, there may be a red dot on the monitor, visible only on a green background, so you need to check the monitor persistently and, if you want, meticulously. After all, we pay a lot of money for our country and in return we want to get an excellent product.
Especially for checking monitors for dead pixels, there are many programs, of which it is worth recommending a monitor test from Nokia. Nokia Monitor Test lets you test your monitor for blemishes, moiré, dead pixels, and readability.
After starting the program, you should select the Color check mode. After that, switch colors by pressing the left mouse button and diagnose the display for dots of a different color - dead pixels.
Be sure to burn the program to a disc or other storage device before going to the store.

How to fix dead pixels

There are two most effective methods for getting rid of dead pixels. We are not talking about black dots; unfortunately, they cannot be revived at home. We'll talk about colored, stuck pixels.
For the first method, we recommend that you be patient, because it will require considerable diligence from you. The method consists in gently massaging the defective area of ​​the display. Don't forget to turn off your monitor when you do this. This should not be done with your fingers, and even more so not with sharp objects - this can damage the anti-reflective coating, as well as the appearance of new dead pixels. A cotton swab is best suited for such a massage.
Find dead pixels with the Nokia Monitor Test and start applying gentle pressure to the area after turning off the monitor. After a few minutes of such simple manipulations, turn on the product and look at the area. Repeat these steps several times. Naturally, massage does not give a hundred percent guarantee of miraculous healing, but it’s worth a try if you can’t put up with such guests.
Another way of massage is hardware. It does not require direct physical impact, therefore it is completely safe. The stuck pixel fixer is located at http://jscreefix.com and can be run directly from the website.
To launch the program directly from the site, you need to open the page (http://www.jscreenfix.com/basic.php), find and click on the Launch ScreenFix link (your browser may not support this program, the developers recommend FireFox Internet browser) . Alternatively, you can download and run the ScreenFix Deluxe program (http://www.jscreenfix.com/launcher.php), note that you will need to install Java Runtime Environment (JRE) 6 in order for it to work.
After starting the program, a window with flickering pixels will appear on the screen, just point it at the defective area and wait for the result.
Judging by the statement of the developers and users of this utility, stuck pixels in most cases are eliminated after 20 minutes of use. However, if the experiment fails, try running the program for 5-10 hours.
The trick of this little utility is that it performs a high-speed color change of individual pixels, which allows you to programmatically straighten a stuck pixel.

So, now you know what pixels are and how to treat their defects. Nevertheless, we recommend that you still check the monitors when buying, so that you do not have to be nervous and apply your knowledge once again.

Until recently, your monitor was perfect and new, the computer transmitted the picture perfectly, and watching videos and playing games on it was a pleasure. But then you notice that one tiny dot in any of the places on the screen is somehow not like that. You try to wipe it off, mechanically remove it from the monitor so that nothing prevents you from enjoying the graphics or special effects, but you fail.

In this case, you are faced with a dead pixel problem. It has been known to computer scientists for a long time and broken pixels have appeared on the monitor almost since the very first monitors began to appear. The problem, although not big, is annoying because it makes the picture not perfect, and watching something on the computer immediately becomes less pleasant. Fortunately, you can try to fix this yourself.

What is a dead pixel?

Without going into complex technical terms and explanations, a dead pixel is a pixel that has stopped producing the desired image and remains the same color all the time.

A pixel is a part of a computer monitor or other digital display. It can be any color. On a monitor, these pixels are sometimes several million. How many pixels indicates the number that indicates the characteristic of the screen. For example, pixels can be 1024x768. That is, there are 700 thousand of these small dots on your screen, which, changing color every second, depending on the processor commands, create a good picture with all the shades and details that were shown in the video.

If the pixel is broken, then this means that one of the huge number of points is out of order and incorrectly executes commands or does not execute them at all. For example, a dead pixel can be white or black. Or constantly give out only one of the colors. Such a defect can be barely noticeable and just annoying, but it can also seriously interfere with working on a computer if there are several broken parts and they are located not in the very corner of the screen, but somewhere in the middle.

A dead pixel can be a factory malfunction, as well as an acquired one. Therefore, in order to avoid problems, you need to check the device for such defects from the very beginning. It is not a fact that the device will be accepted under warranty if you find such a problem some time after use.

The fact is that there are classes of displays in which, at the level of technical characteristics, it is laid down that there may be a certain number of pixels with a defect.

Types and types of dead pixels

Depending on the color of the defective dot on the monitor, you can understand what type it belongs to and understand whether it can be cured or this problem cannot be restored. There are three types of failed monitor components:

1. White dot. This problem is also called “hot pixel”.
2. Black dot. this pixel is also known as a dead pixel or as a dead spot on the monitor.
3. Color dot. Such broken pixels are obtained due to the fact that one of the subpixels of the main dot fails and produces only one color. This problem is also called a stuck pixel.

In theory, at home with your own hands, without special equipment and knowledge, you can only fix the last type of broken pixel, when the dot glows in one bright color. In other cases, a serious repair at a service center will be required, as well as a complete replacement of the monitor if the problem is very serious and interferes with work.

Check for dead pixels

How to check the screen for dead pixels. This is an important question for anyone who doesn't want to buy a monitor with an initial factory failure and put up with the fact that they have to watch it all the time.

The question of how to check the screen for such damage arose for people immediately after they realized that dead pixels exist and that this can greatly affect the usability of a computer.

The whole check is a very careful examination of the monitor and troubleshooting on your own, carefully looking at it. However, there are some details in the check. Detailed instructions on how to check the monitor:

• To begin with, you should carefully wipe the monitor from dust and other contaminants in order not to mistake a dead pixel for a dirty point on the screen.
• After that, you need to set the native resolution on the screen. It is optimal for viewing and allows you to look around everything well.
• Then you should carefully inspect the screen, turning on different plain backgrounds in turn. It must be black and white, as well as green, yellow and red. However, other colors and shades can be included for additional verification. In order to do this, you can simply download or prepare pure color pictures. You can also help yourself with various utilities: Nokia Monitor Test, Monitor Test, Dead Pixel Tester. You can also use other utilities if you wish.

Colors to check

This is the entire verification process. If there are factory or purchased problems with the monitor, you will understand after color checking.

Dead Pixel Treatment

Every person who is faced with the problem of a dead pixel on their monitor asks a completely logical question about how fixable it is and what can generally be done with dead pixels. In theory, the color defect can be cured. However, due to the nature of the breakdown, this may not work. In addition, it is not a fact that it will be cured forever. However, it's worth a try, especially if this problem annoys you a lot.

In total there are 3 ways to deal with such a problem. This method is software, mechanical, and also combined.

Note! Everyone treats pixels at their own peril and risk, because there is always the possibility that the number of faulty dots on the screen will increase. This is a lottery, at home you cannot carry out hardware diagnostics and try to act on a pixel pointwise. A particularly high risk is associated with mechanical and combined methods of treatment. Hardware, most likely, will not cause complications, so you can try it.

So try to treat a dead pixel only if it is very disturbing and annoying, and also do not try to treat with a mechanical or combined method the case when there are 2 or more dead points on the screen in close proximity.

Also, remember that it is useless to treat a black or white dot - at best, you will not succeed.

Program method

In order to cure the computer of this defect, it is worth using special utility programs. There are paid applications, there are free ones, but they all work in approximately the same way. A person launches the utility to work, a window appears on the monitor screen, in which different colors constantly flicker. In order to heal a pixel, it is worth dragging this window to the place where there is a problem and leaving this window there for half an hour.

The utility heals a broken color pixel by acting on it with different commands, changing the task several times per second. She tries to pull the color out of the dead pixel and make it work. One of these utilities is ScreenFix, in addition there is Bad Crystal, and many other similar programs.

mechanical method

The mechanical method of treating a dead pixel is also called pixel massage and you might have already guessed what it involves. You need to press on the place on the screen where the wrong element is located. However, it is important to do this not with a sharp object, which can seriously injure the screen and lead to even more dead pixels, but with a very soft object. For these purposes, an ear stick is well suited. For reliability, you can wind an additional layer of cotton wool on it, so there will be additional protection.

It is not necessary to press hard, but so that streaks appear on the monitor screen. To do this, you need to try for about 15 minutes. If during this time nothing happened, it’s worth giving up the idea, since further pressure can lead to even more damage to the monitor.

Combined method

If the first and second methods did not help separately, you can try to cure the monitor screen if you apply the mechanical and software methods at the same time. However, this should be done only if a dead pixel is bothering you a lot and you do not intend to tolerate it at all, and are also ready to take a risk.

There is also good news. Dead pixels on the screen may disappear on their own after a while after they appear. This happens if the color change has acted on a malfunction on the screen as a utility that cures the problem programmatically.

Conclusion

Now you know what a dead pixel is, and also figured out how to detect it and try to cure it. However, if they do not bother you much, then you should not do anything.

In addition, pay attention to the importance of checking the monitor for a dead pixel if you are buying a computer, phone, or other equipment. This is especially true for the purchase of devices that have already been in use and may have serious defects.

Be careful, do not be upset about dead pixels, and if there are several of them on the screen, take the device to a service center for diagnostics. Experts can help you get rid of the problem, or simply tell you how to make sure that their number on the screen does not grow every day. In addition, you can hope that dead pixels will disappear from the screen on their own - this happens quite often and you may be pleasantly surprised when this happens.

Dead pixels are one of the most pressing issues, often becoming a reason for a heated showdown with suppliers of LCD monitors, tablets and smartphones. Managers of fashionable stores are often in a hurry to disown this problem, referring to the regulations of official manufacturers. We will focus on what “broken” pixels are and how to deal with them one-on-one in this article.

Checking and treating dead pixels
Monitor, like a personal computer, we buy more than one year. But, unlike a PC, which can always be upgraded if desired, there is no way to improve the image quality characteristics of the hardware. That is why, when evaluating the functionality and picture quality of a potential candidate for the position of a home monitor, we approach the issue of choosing a model very responsibly, investing in a novelty to the maximum and for a long time.

And now, all the accents are finally placed, a brand new monitor is bought and connected, it shows all signs of life, pleases the eye with image quality and color depth. You are certainly satisfied with the purchase and everything would be fine, but something confuses, distracts your attention and does not allow you to perceive the picture in its entirety and entertainment. The gaze now and then slides down to a dark, light or colored dot, which retains its color regardless of the broadcast image. Well, get acquainted, gentlemen, you are extremely lucky: in front of you is His Majesty the “Broken Pixel”!

Problem
The image that we see and perceive on the LCD monitor as a whole is actually formed from many clusters of dots called "pixels". In turn, the entire color gamut can be achieved with just three subpixels - red, blue and green. In models of LCD monitors with an active matrix, an individual thin-film transistor (Thin Film Transistor - TFT) is attached to each pixel, the damage of which will appear on the screen as a black inactive dot, which is called a “broken” pixel. And in this case, the problem can only be solved by replacing the transistor in the laboratory and, alas, there is no alternative here.

If you observe a bright dot on a dark background - do not rush to despair! Quite often, the cause of the appearance of broken subpixels is their “hanging” in some intermediate position, which outwardly manifests itself in the absence of their reaction to a changing picture. You can solve the problem at home, without fear of harming the monitor, programmatically, or by performing some physical manipulations.

Why amateur performance if the monitor is under warranty?
An absolutely normal question that is asked by everyone who has already managed to get acquainted with our problem, but is not yet familiar with the likely reaction of the store. It turns out here, even despite the warranty obligations of the service, nuances and disagreements are very likely.

Defective pixels? - Complain to the Stockholm Arbitration!

The real reason for the dispute is the manufacturers themselves, who officially set the tolerance for a certain number of “allowed” dead pixels on monitors of the corresponding standards - the ISO-13406 regulation.

In accordance with accepted tolerances, monitors are divided into 4 classes:
1st class - dead pixels are practically excluded, warranty repair and replacement in case of detection is mandatory and is carried out immediately;
2nd class - the most common variant, allowing the presence of 2 defects of types I and II;
3rd class - budget models that allow the presence of 5 broken pixels of type I, 15 - type II, 50 - type III.
4th class - monitors of low quality, allowing the presence of 50, 150 and up to 500 (!) Type I, II and III defects, respectively.

Note:
Type I - white pixel visible on a black background;
Type II - black pixel on a white background;
Type III - red, blue, green pixels.

It becomes clear that despite the warranty, the annoying single white pixel in the center of the screen of the 2nd class monitor remains your problem, and the best way to prevent this situation is to connect and test the display before calculation or during the period available for exchange in accordance with consumer protection law.

Monitor check
A visual assessment of the image quality in the cabin often does not allow to make an unambiguous conclusion about the presence of broken subpixels, and even more so - to determine the presence of moire, to assess the readability of moving text, the response speed of the matrix and other significant parameters. And why, if it is much more reliable, easier and more efficient to check the monitor using specialized utilities that will allow you to get all the data in full, and most importantly, on time. Fortunately, the choice of free programs that allow us to achieve our goal without spending any money is off scale today.

IsMyLcdOK
IsMyLcdOK is a portable universal utility with a simple, intuitive interface that allows you to check a TFT liquid crystal monitor or an LED-backlit LCD monitor for dead pixels in a few minutes.

The program does not require installation, it runs on any portable devices and computers running Microsoft Windows: Servers 2000/2003/2005 Win 98/XP/Vista/7/8/8.1/10 x64/x86 from removable media. This will allow you to avoid unnecessary disputes with the store manager, who is not always interested in the test results.

The working menu is available immediately after the test run of the program. Switching between testing modes is carried out by selecting the numeric keys corresponding to the description.

Program window


The program allows you to evaluate the speed of image processing, the refresh rate of the screen and the stripes painted in different colors - rectangles. Tracking the alternating color and monochrome image and following the simplest instructions, you can accurately and easily detect dead pixels on reference colors, determine their type and number.

The available color gamut makes it easy to find dead pixels or make sure they are absent.

NOKIA MONITOR TEST 2.0
One of the most popular utilities in this category, which has advanced features for checking the quality of an LCD monitor, including a test for the dead pixel problem of interest to us, as well as templates that allow you to evaluate parameters such as resolution, moiré, contrast, focus, brightness, readability text, geometry accuracy, color reproduction and much more.

Program window

Using Nokia Monitor Test, you can test not only the image quality of monitors, but also the latest generation of video cards. The advantages of the program are the power of the functionality, the simplicity of the interface, the miniature size of the distribution kit, the ability to run from removable media. To obtain all the data necessary for analysis, you just need to move the left mouse button on the active buttons of the main screen menu.

System requirements: Servers 2000/2003/2005 Win 98/XP/Vista Windows7 Windows8 x64/x86. Installation is not required. Distribution size 1.15 Mb. The Russian version is present.

PixPerAn 1.011e
The developers of this program cannot be denied originality. Unlike more or less ascetic or, on the contrary, colorful static interfaces, here the key parameters of the monitor's performance are checked on a dynamically changing picture. The utility contains a series of unique tests to identify problems associated with LCD matrix inertia. Among them is such a common one as multi-colored trails that occur when viewing a dynamic picture.

Program window

PixPerAn tests allow you to adjust the color palette, size and speed of movement of objects, while monitoring the response of the matrix, drawing speed and the number of dropped frames, processor load and screen parameters. The "gaming" test will allow you to play a fun simple game with cars and identify image flaws in a rapidly changing dynamic.

The original game test that allows you to evaluate the quality of the image in dynamic scenes

Thus, by installing this miniature (68kb) utility, you get the opportunity to simulate on the display the conditions under which the hidden problems of the monitor will manifest themselves explicitly.
Platform: Windows. The interface is English.

All of these programs are absolutely free and do not require registration in the registry.
The patient is alive...

So, software diagnostics allowed us to accurately determine the presence, location and type of dead pixels. We will assume that we are lucky, and the pixels that we observe on our screen are among the "stuck", that is, light.
As paradoxical as it may seem, it is often possible to carry out an operation to “reset” a pixel into its place by massaging the injured area with circular movements. This should be done not with a finger and not with hard and sharp objects, but with a cotton-tipped stick, gently, slowly, with the monitor turned off. And in order not to "miss", mark the dead pixels detected by the program before the moment you turn off the monitor.

Manual therapy or how to get rid of frozen pixels surgically

Repeat rotational movements for two to three minutes, then start the monitor and appreciate the fruits of your labors. If there are none, repeat everything again. The method does not give a 100% guarantee, but it increases the chances of getting rid of the problem many times over.

The "civilized" way
Unlike the first method, which requires some caution on your part, the alternative - programmatic method is completely safe. The easiest way is to use a specialized program that will deal with stuck pixels in a few minutes. You can launch it directly from the site by following the link: www.jscreenfix.com/basic.php and clicking on the Launch ScreenFix button at the bottom of the page.

After starting the program, you will see a window with flickering pixels, which must be combined with the problem area. In the process of “shaking”, the colors of individual pixels change at an increased speed, which at some stage allows the hung culprit to “unstick” and return to working condition.

Jscreenfix at work

As practice shows, in 20 minutes of work the program deals with the vast majority of problem points. If the result is not achieved, the developers recommend leaving the computer in this mode for 5-10 hours. Note that the cured pixels do not acquire immunity and with the onset of the summer heat they have every chance of sticking again. In this case, the course of treatment is recommended to be repeated.

Well, now you are armed with knowledge, and if necessary, you can deal with dangling pixels without the help of computer gurus and intractable managers. Better yet, use the knowledge gained when buying by testing the monitor of one of the programs on the store counter, then the problems of “hanging” and fatal black pixels can be avoided!

Afterword from iCover:
Dear readers, we remind you that you are reading the iCover blog, a place where you can get good advice or expertise in the world of gadgets. And, of course, do not forget to subscribe to us and we promise - it will not be boring!

I mentioned some broken pixels on the display (and also about broken sectors on the hard drive, but more on that later). Now it's time to reveal to you a terrible secret, what is a broken pixel. More specifically, in this article you will learn:

1. What are the types of dead pixels?
2. How to check the monitor for dead pixels?
3. How to remove dead pixels? The so-called "treatment"

Well, I think we can proceed to the analysis of the topic.

A pixel is a dot on your monitor or display that can take on any color. If you have a monitor resolution, for example 1024x768, then this means that your monitor has a whole field of pixels - 1024 pixels wide and 768 pixels high. A total of 786432 points (according to the formula for the area of ​​a rectangle). Thus, on your monitor there are almost a million (sometimes much more, for example 4K) multi-colored dots from which an image is formed.

A dead pixel is a defective pixel that does not work as it should or does not work at all. Instead of the expected color, the dot can be black, white, or solidly lit in one color (red, green, or blue).

Naturally dead pixels interfere with computer work, irritate, infuriate, distract and so on. Therefore, it is better to immediately check the purchased device for the presence (or better, the absence) of dead pixels.

If you notice such incorrect points too late, then it is not certain that you will be able to return the device under warranty. Because some classes of displays allow a small number of defective pixels.

What are the types and types of dead pixels?

Depending on the color of the broken pixel, you can understand what type it belongs to and whether it is possible to cure it.

Hot, dead, and stuck pixels (left to right)

• 1st type - white dot. Also called " hot pixel».
• 2nd type - black dot. Other titles " dead pixel" and " dead pixel».
• 3rd type - colored dot. Such is formed when one of its subpixels fails. It is also called " stuck pixel».

Theoretically, only a stuck pixel can be cured on its own at home. More on this later.

Check for dead pixels

How to check the screen for dead pixels? This is the first question you had when you learned about the existence of such. In fact, the entire procedure for checking the monitor comes down to a thorough and careful examination of the screen.

Check for dead pixels (instruction):

1. Wipe the dust on the screen well so that there is no visual interference.
2. Set the screen to the optimal resolution (native). If suddenly you had something else.
3. Examine the screen, including the solid background (black, white, red, blue, green, yellow) in turn:
   1. You can use simple pictures that you have prepared in advance.
   2. You can use special utilities, for example: Nokia Monitor Test, Dead Pixel Tester (http://dps.uk.com/software/dpt), Monitor Test (http://tft.vanity.dk) and others.

Dead Pixel Colors

Everything. You will notice deviations with the naked eye, if any. And if they are not, then feel free to take the monitor. By the way, it's not a fact that dead pixels will not appear later. The main thing is to notice them in the first 14 days after the purchase, then you can return the goods under the law on consumer rights.

Quite an adequate question is “Is it possible to cure broken pixels?”. And the answer is yes. Or more positive than negative. So it will be more correct. Because not everyone can remove unwanted dots on the monitor. And not the fact that it is forever.

In general, there are 3 methods for treating dead pixels:

1. Program
2. Mechanical
3. Software-mechanical

Program method

To treat dead pixels, you need to use special utilities. Some of them are paid, some are free. The bottom line is to run the utility, which is a small window with dots constantly flickering in different colors. And use this window to influence the place with bad points, simply by dragging it over them and leaving it there for 20 minutes. Examples of such utilities: JScreenFix, Bad Crystal and others.

JScreenFix in action

mechanical method

The so-called "mechanical pixel massage" consists in massaging the right place with something not sharp, for example, an ear stick, but rather with a PDA stylus, if any. Do not press hard, but hard enough to cause streaks to appear on the monitor matrix. This should be done within 10-20 minutes with the screen on. If you managed to reanimate the point in this way, then I sincerely congratulate you.

Program-mechanical method of treatment

If the treatment of dead pixels did not help after using the first 2 methods, then you can try to use them at the same time. But it is better to try all the same starting with the first method, since it is the most loyal.

Do not forget that you treat dead pixels at your own peril and risk, because there is a possibility that you will make it even worse. Therefore, if the defective points do not catch your eye and do not greatly interfere with work, then it is better to leave everything as it is. In addition, sometimes it happens that they disappear on their own. O miracle!

Conclusion:

Now you know how to detect dead pixels and how to fix them. Once again I want to say about the treatment of dead pixels: if they don’t interfere much, then you don’t need to do anything, otherwise their number may increase and then it will not be fun at all.

Well, that's all, we figured out what a dead pixel is. Good luck with your shopping. And check your monitors especially carefully.

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