The appearance of a dead pixel on a phone, monitor or TV is a guaranteed spoiled mood. You may not notice it for many months, when suddenly an epic horror in the form of a dot is revealed on a solid screen filled with a single color!

The pixel remains a thorn in the side, which is always an eyesore, even if it is in the corner and generally difficult to distinguish by those who do not know about its existence. But we know!

dead pixel vs dead pixel

dead pixel doesn't "burn" at all. Never and no color. It is black on any background. There is practically no chance of its recovery.

Dead pixel (stuck) displays two colors out of three, rarely one out of three. This distorts the white. The dot will be black on a red, blue or green background. Such defects have every chance to return to their original state.

With a stuck or dead pixel, some effort and time is required. And no, you do not have to disassemble the smartphone. Let's see what can be done on LCD (TFT-TN, IPS, VA) or AMOLED matrices.

Dead pixel on iPhone or iPad. How to remove?

Correction by software method

1. Without downloading anything, open the web page jscreenfix.com in Safari and click "Launch JScreenFix".

2. This will launch a small window with a stimulating effect for a certain area of ​​the screen.

3. We expose it so that it covers the place with a broken pixel and wait at least 10 minutes (the longer, the more chances for a fix).

4. Do a test for broken pixels. If it doesn't work, then try a few more passes.

Correction by mechanical method

1. If software stimulation does not help, then you should try to fix the defect mechanically (do not rush to throw the iPhone against the wall!).

2. Clean the display of dust and hair and turn it off (by blocking, for example).

3. Take a lint-free cloth (so as not to scratch the protective glass) and knead the defective area with light massage movements with a finger or an eraser for 3-10 minutes.

4. Turn on the display and check the result. If it doesn’t help, then try the same operation with the screen on without overdoing it with pressing force (you can damage neighboring pixels this way).

Another way to get rid of a broken pixel is with heating

1. If mechanical action does not help, then we will resort to warming up.

2. Heat the water to a temperature close to the boiling point (when it starts to bubble).

3. Take a lint-free cloth and put it in a plastic bag, securing it with an additional layer.

4. Being careful not to burn your hands, pour some hot water into a plastic bag, soaking it in the fabric.

5. In circular motions, using an impromptu “heater”, knead the problem area for about 5 minutes.

Dead pixel on a smartphone or tablet. How to fix?

Get rid programmatically

1. In the same way as in the case of the iPhone, we go through the Google Chrome browser to the jscreenfix.com website and follow the step-by-step instructions above.

2. But you can also use a special application from the Google Play Store called Dead Pixel Detect and Fix with advanced features.

3. Using a special tool, check the color against which the dead pixel will be black.

4. Press the "FIX IT" button for the selected defective area.

5. The app runs for 30 minutes by default - make sure your smartphone or tablet is charged.

6. We check for dead pixels with the same program.

mechanical way to get rid of from a dead pixel and temperature effect completely identical to the instructions for the iPhone.

Today, every family can afford to buy a computer. In view of the rapid progress of computer technology, they become obsolete. fast , and they are being replaced by more powerful and updated models. Therefore, everyone can afford to buy a computer or laptop now. Moreover, most of them already have a couple or even more computers.

For example, my friend has a computer that is installed in the kitchen so that it is not boring to cook and, in fact, have dinner. The computer is of medium power, but for home use it will do very well. But using it in the kitchen, in the summer heat, and even with the stove or oven turned on, the problems were not long in coming. Dead pixels began to appear on the monitor. While there are only a couple of them, urgent measures must be taken so that the problem does not worsen. Today I will teach you how to remove dead pixels, fix them.

For those who are not familiar with such a term as dead pixels, I’ll tell you - these are such non-working dots or parts of a dot on the monitor. You can also watch them on your phone. But most often they are visible on computer screens.

If the pixel does not work at all, then it will be black and it will be possible to notice it only on white or light colors of the monitor. This type of broken pixel is considered the most harmless. But, despite this, there is nothing to fix here.

The most popular and at the same time the most noticeable dead pixels are points of bright red, blue, green, yellow, turquoise or magenta. These dead subpixels are also called stuck pixels.

If any of these pixels appear in the middle of the screen, it will annoy you especially if it is red. Such a broken pixel is immediately noticeable.

One of the features of dead pixels is that they not only appear unpredictably, but they can also disappear unpredictably. For example, on my old monitor, when I first started using it, there were already three dots of different colors. Maybe I didn’t notice them when I bought them, or they appeared on the first day of use, I don’t know anymore. But I didn’t bother at all about these points, since they didn’t interfere with viewing the picture on the monitor at all. I have had this monitor for 5 years. And during this time, the dots didn’t bother me at all and I watched them very rarely, despite the fact that they were clearly in the middle of the screen.

Most likely, the points were not captured due to the fact that the monitor was on an MVA matrix, and not on the most popular TN. This matrix has one feature - small defects are not noticeable. Before writing this article, I decided to check whether it would be possible to remove dead pixels on my old monitor. I turn it on, and the pixels are fine. I did not find a single broken point.

How to remove dead pixels?

Naturally, we will not talk about methods using high technologies, since they are used only in special laboratories and with special equipment. But there is a treatment method that will help you remove dead pixels at home.

There are only two ways to remove dead pixels at home, this is a software method and a mechanical one. I'm sure you, like me, were also not aware that there are programs that can fix dead pixels. So far, I have been able to find only two such programs.

Software method for recovering dead pixels

This method became possible due to the technology of fast color change of adjacent pixels. Thanks to this process, a large amount of energy is supplied to the sub-pixel, which makes it come to life. Using this technology, you can resurrect from 55% to 80% of already dead pixels.

But, using this method, you need to be patient. Since it will take a lot of time to restore some pixels. You'll have to get out and experiment if you can't immediately restore the broken pixels. Experimentation will consist in changing the speed of changing colors and the running time of the program itself.

The restored pixels mayow fade away. Most often this is facilitated by hot weather. But, the repeated recovery procedure and the broken pixels work again. But, there are times when the pixel can no longer be restored.

Dead pixel repair software

As I said, I found only two programs that can restore dead pixels. One of them is " Bad Crystal". By downloading the free version, you can use it for 30 days, but with limited functionality. By downloading this version, you will not have access to advanced technologies. But there is an option to use the older version of Bad Crystal 2.6. It works without restrictions, but after the first minute of operation, the program window is completely darkened.But you can solve this problem using a hardware tablet.You need to move the program window with the mouse and then do not release the left mouse button.You can hold it in this position using a mug.When in this position, you will constantly watch the program window.If anyone finds a version of the program already with treatment, then do not forget to do it before installation.After all, there can be very unpleasant surprises in the downloaded file.

After installing the program, run it. You will immediately need to select the device with which you will need to work: screen, computer, mobile phone, console or plasma panel.

If you use the program on a phone or game console, the video file will be generated for the selected resolution. It will need to be played in repeat mode on a mobile device. For a plasma panel, you can burn a DVD or HD disc with a finished video or run it from a computer in Full Screen mode. Since you are working with a monitor from a computer, so we need to select "Computer Monitor".

To open an additional menu, we need to move the mouse cursor to the top of the program window. You will see that only 4 modes are available to you: Common Clearing (CCM), System Modified (SMF), Complex Force (CFV), Personal Protection (PPM).

But even of these available modes in the free version, you can only use two, these are CCM and PPM. The remaining modes provide a higher percentage of recovered pixels, so they are only available in the paid version. The CSM mode is selected by default.

When we figured out the interface, click on the "Launch" button. After that, the working window of the program must be moved to the area of ​​broken pixels. We wait 10 minutes and check the result. If the dots are still in place, then it is necessary to increase the speed of the program. To do this, press "Speed ​​Up" button.

This button will not be visible until you hover over it. It is located in the upper left corner of the program window.

We also wait 10-15 minutes and check the result again. If even after increasing the speed, the dead pixel does not disappear, we increase the speed of the program to the maximum and again check the result of the work. Thus, a lot of time can be spent on restoring a pixel. He will eventually recover, but do you have enough nerve for this procedure. I learned about cases when such recovery lasted for 10 hours.

In order for the pixels not to get stuck again, I advise you to turn on the automatic prevention mode - PPM. This mode works by changing colors on the monitor over time. You need to run this process a couple of times a month, at times when no one is sitting at the computer. In manual mode, you can also run this procedure. But I couldn't stop her. Maybe he waited a little, but when the program was running, it was written that there were 30 seconds left. In fact, the work went on all the time. To terminate the program, you must end the process called “ppm.exe” in the task manager.

The next program with which you can restore broken pixels is JScreenFix. Although, JScreenFix can hardly be called a program. This is a Java application. Java must be installed on your computer for it to work. More recently, this program was freely available and absolutely free, you can look for the old version.

The JScreenFix program is completely different from the previous one. The application will automatically determine the place of its work. You just need to click on the "Locale" button. The program window will turn black and you will need to move this window around the screen of your monitor. We are not in a hurry, because the program will have to determine all the dead pixels. In order not to look for points on your own, you need to select "Full Screen", to have the app scan the entire screen at once. The stage of checking for dead pixels is completely free.

But the second stage of working with the program, namely the restoration of dead pixels, will already require payment for use. In this, the program is similar to "Bad Crystal". On the application website, you can find ready-made videos depicting the operation of the program. You can use them to restore pixels. But given that the resolution on the video is significantly different from the original work of the program, it is not effective You can use any player to play it, so the video can be played both on your phone and on your computer.

The manufacturers of both programs recommend that the monitor be prevented. To do this, you need to start the "recovery process". Honestly, I will not tell you how much it is really necessary and whether it is worth spending time on it. But if we are talking about plasma panels, then such prevention will really be useful.

Mechanical way to solve the problem

If after this procedure the dead pixels disappear, then the problem was not serious. But, for prevention, you need to run "Bad Crystal" and process this very area. If the broken pixel has not sold, then you need to double-strike on the problem, namely, run the "Bad Crystal" program and at the same time massage the problem area with an ear stick. Massage can be stopped after 15 minutes, and the program will have to be left running for at least 10 hours. Then you will definitely be able to get rid of dead pixels.

I hope this knowledge will not be useful to you and dead pixels will not visit your monitors. And if they are formed, then they are imperceptible and will soon disappear.

Scientists from Cornell University and the University of Texas at Austin achieved 71% accuracy in recognizing blurry and pixelated images. If the algorithm makes five attempts in a row, then the recognition accuracy reaches 83%. At the same time, the chance that an ordinary person recognizes a face hidden behind pixels is 0.19%, according to Quartz.

To look beyond the veil of pixels, the scientists used relatively simple tools: the Torch open-source deep learning library, as well as neural network templates and standard datasets taken from it, which are also in the public domain. It is this simplicity and availability of tools that distinguishes the method of scientists from other similar experiments. Previously, scientists from the Max Planck Society developed recognition of people in blurry Facebook photos. They used a more complex program, but it is inferior in accuracy to the development of American scientists.

The researchers emphasize that relying on old methods of protecting privacy is no longer worth it. Computer vision and machine learning are able to see what is hidden from our eyes.

The algorithm does not recreate the face or image pixel by pixel, it only tells what or who is in the photo using pre-known data. The system works both with regular images with blur and pixels, and with P3 - the JPEG-encrypted format.

For the experiment, the researchers took regular images available on the internet and then ran them through YouTube's pixelation tool. After that, the algorithm was provided with two sets of images - originals and processed versions. This approach made it possible to train the algorithm. In the future, he was shown other photographs of the same people, but the program still recognized them in blurry pictures from a different angle. The accuracy of personal identification was 57%, and with five attempts - 85%.

“We use this poor man approach. It is enough to take some training data, add neural networks, several basic image recognition algorithms - and even with this approach, you can get very good results,” said Vitaly Shmatikov, one of the authors of the study.

Hawking: 'An encounter with aliens could end badly for us'

Almost everyone can achieve such results, it is enough to find the necessary set of training data on the Internet. But scientists say it's not difficult - some data is publicly available on the Internet, such as a database of handwritten numbers. At the same time, the researchers note that there are already methods that are several times superior to their result, which means that you can no longer rely on pixelization.

Facial recognition could be the technology that will have the greatest impact on our future. It is enough to imagine that the whole city is equipped with cameras, all citizens are being monitored, and their identity is established almost instantly.

A Sichuan University professor uses hidden cameras to identify students and track their attendance. The same technology helps to determine the mood of students in lectures.

Summer has begun, the heat and new jokes. I have a one-room apartment and, think for yourself, I decided to put a second computer in the kitchen with a 19-inch TFT monitor! And where does the summer and dead pixels? And here's the thing. 36 degrees outside, stove, oven and high humidity did their dirty work - a couple of dead pixels appeared on the monitor.

Dead pixels are constantly glowing or vice versa - dots or parts of a dot (subpixels) that do not work on the monitor. If the pixel does not work at all, then it always looks black and is only noticeable on white and light colors. This is the most harmless type of dead pixels, but it is almost impossible to treat.

The most common dead sub-pixels are when a bright red, blue, green, yellow, turquoise or magenta dot glows constantly. They are also called "stuck" pixels (stuck pixels). If such a pixel pops up in a prominent place, it is very annoying, especially red 🙂 If all three subpixels are buggy at once, then a white dot will glow on the screen.

By the way, defective pixels can both appear and disappear themselves. On my main monitor from the purchase itself, there were three multi-colored dots in the middle of the screen. When buying, I either did not notice them, or they appeared already at home, I don’t know. But I didn’t bother about this, because. they were absolutely invisible to the eye, if you do not peer. In 4 years of working with this monitor, I never noticed them, although they were in the middle of the screen.

I think this is due to the fact that my monitor is on an MVA matrix, and not on the common TN. Probably, the specificity of the matrix is ​​​​such that minor defects are not noticeable. So, I recently decided to check if these pixels can be removed in a new way. I checked and they weren't there! We all went somewhere in formation 🙂

Programs for recovering dead pixels

It is not worth talking about high-tech methods used only in laboratories. Is it possible, in principle, to get rid of multi-colored dots at home? Yes it is possible! And I made sure of it myself. There are two ways to eliminate dead pixels - software and mechanical.

Restoration occurs due to the rapid change of colors of adjacent pixels. Thanks to this process, a large amount of energy is supplied to the sub-pixels and they come to life. This technology promises to recover from 55% to 90% of "stuck pixels". True, each case may require a different amount of time, you will have to experiment if you can’t remove the damaged pixels from the raid. Experiments mean changing the speed of changing colors and the running time of the program.

The repaired pixel may get stuck again after a while, especially in hot weather. Then the treatment process will need to be repeated. In some cases, such a pixel cannot be completely cured.

UndeadPixel will suit most

Go to the official website and download the program installer. I recommend the installation version, not the portable version.

In the main window of the program, it is proposed to start by finding dead pixels by filling the screen with solid colors: red, lime, blue, white, black and yellow. Different dead pixels will be visible on different backgrounds. If you already know where your pixels are, then we immediately proceed to recovery.

UDPixel works like this: a square appears in which colors change quickly, i.e. the pixel recovery algorithm works there, and we need to move this square to the problem area of ​​the screen. In the "Undead pixel" section, you need to set the parameters:

• Flash windows - the number of squares, i.e. how many problem areas are you going to treat at the same time
• Flash size - the size of one square in pixels 1x1 or 5x5. Since it is very difficult to set a 1x1 square to exactly 1 pixel, a 5x5 area will do to restore even one pixel
• Flash interval - pixel update rate by algorithm. The shorter the time, the faster the speed. Maximum speed at 3ms.

Press Start and move the flickering square(s) to the defective places, see the video below. When the pixel starts flashing, then this is already an application for victory, just leave it for a longer time. If everything is unchanged, then select the maximum speed and wait until the pixel disappears. In the worst cases, it can take 10 hours, there is no point in waiting any longer.

The peculiarity of UDPixel is that during the restoration of pixels, you can continue to work if the squares are not large and do not interfere.

JScreenFix for browser

This is not a program, but just a website, a free service on the Internet. Thanks to this, JScreenFix can be run on any device with the Internet: computer, laptop, tablet, MacBook or LCD panel.

Scroll down the page and click the "Launch JScreenFix" button. The JScreenFix script restores dead pixels in the same way as UDPixel, only without the ability to change the parameters, and it will not work at this time at the computer.

You need to move the iridescent square to the problem pixels, and if they are outside the browser window, then go to full screen mode using the green button. Watch the video to see how Undead Pixel and JScreenFix work:

The manufacturers of these programs recommend doing preventive maintenance to your monitor, occasionally starting the “recovery process”. I don’t know how justified it is to spend my attention on this, but for plasma panels this can be really useful.

Bad Crystal - all-in-one combine

On the site you can both download the program and buy it. The free version runs for 30 days in limited functionality mode, which does not work with more advanced technologies. On the Internet you can find a version without restrictions 😉

The program starts by selecting a device: computer screen, mobile phone, game console or plasma panel.

For mobile phones and game consoles, a video file is generated for the selected resolution. It will need to be played in repeat mode on a smartphone. For the TV, you can burn a DVD or flash drive with the finished video, or run it in Full Screen mode.

If you have a regular monitor or laptop, select "Computer Monitor". To display the additional menu, move the mouse to the top of the window. Four modes are available here: Common Clearing (CCM), System Modified (SMF), Complex Force (CFV), Personal Protection (PPM). The free version only works with CCM and PPM. The remaining two modes should provide a higher percentage of recovered pixels. CCM is selected by default.

Press "Launch" and move the window to the area of ​​broken pixels. We wait 5-10 minutes and check. If the point remains, then increase the speed using the "Speed ​​Up" button, which appears if you move the mouse to it, and wait another 10-15 minutes.

The developers claim that their algorithms allow not only to treat pixels, but also to eliminate spots on the screen and. But this is in the case when these are simply clusters of pixels that do not work correctly. Watch the video:

Further, so that the pixels do not get stuck again, it is recommended to turn on the automatic prevention mode - PPM. In this mode, the colors on the monitor change over time. The process starts 2-3 times a month when no one is working at the computer.

mechanical method

I have not tried this method, but I have seen many reviews in its favor. If the programs could not cope, then it's time to massage the monitor 🙂 That's right. Take an ear stick and start doing massage on the site of a broken pixel. Just press not very hard, but so that stains appear, and massage the causal place. The case requires perseverance, as it may take from 10 to 30 minutes of work.

If it worked out - cheers! I congratulate you, you can “polish” this case with Bad Crystal. And if the pixel stubbornly does not want to recover, then you can try to run the program and simultaneously massage the place for about 15 minutes, and then leave the program to work for 10 hours.

I hope that the article was very useful to you. Your friends will be very grateful if you share this information using the social media buttons below the article.