Why do pixels burn out on Sony TVs? Program to check your TV for dead pixels

Restoring a dead pixel on a TV is easy!

First, let's get to the heart of the problem. The easiest way to understand the cause of the malfunction is when we become more familiar with the principle of displaying an image on a television panel. It is formed from a certain number of small colored fragments called pixels. Despite the differences in TV characteristics, properties and years of release, plasma TVs, like LCDs, have the same image structure. On all of them, pixels create and change their color, presenting amazing video sequences to our vision. But even here, troubles happen, and some colored squares stop performing their function and stop changing their color. We can see green, red, blue, white and black pixels on the screen when these colors should not be in the picture. This phenomenon is unacceptable for the viewer, so it is necessary to eliminate dead pixels. This will require a whole procedure.

Let's fix dead pixels on your TV!

There are different types"beatenness". As we already said, there are black pixels (a sign of burnt-out transistor). Unfortunately, it is hardly possible to restore this defect with your own efforts. But you can try several ways to recover stuck pixels. We don't guarantee exact effectiveness, but it will likely help.

Method No. 1 is as follows: it is necessary to carry out physical influence on correctly working pixels. It's not difficult, turn off the TV, pick up a regular cotton swab, then gently press the area of the non-working pixel. After a few minutes of physical impact, turn on the TV to check. Don't be discouraged if the pixel is still black. Repeat the procedure again. Method No. 1 has long been tested on the restoration of LCD panels. The fact is that the liquid crystal inside the panel can be moved by impact, after which the pixel will continue to perform its functions as it should. The display is a very fragile part; do not use sharp, piercing or scratching objects on its surface.

Method No. 2 is more secure, one might even say remote. It consists of using specialized applications. Software always helps, and maybe it will help in this case. One of popular programs to restore dead pixels is in open access: JScreenFix. The software developers claim that the utility eliminates image defects after just half an hour of use. The procedure must be repeated several times at intervals of 4 hours. During such manipulations, the program changes colors in the area of the faulty pixel at tremendous speed. As a result, the owner will receive a fully functioning color display of the screen. Do not stop at this utility, try others if you cannot access this one.
Remember, the presence of defects in the image (even 1 small square) will be a legal reason for changing the display or its warranty repair. If the TV is not under warranty, and methods No. 1 and No. 2 did not help, most likely it is worth replacing the burnt (faulty) transistor.

Self-sufficient seems simple and straightforward. However, it does not provide a 100% troubleshooting guarantee. If a user wants to quickly and inexpensively repair a TV at home, call a technician. The telemaster will arrive with the necessary tools and immediately and competently begin urgent restoration. The work performed is backed by a lifetime warranty, so you can rest assured that every customer will receive the highest level of service.

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

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

The most common dead subpixels are when a bright red, blue, green, yellow, turquoise or purple dot is constantly glowing. They are also called “stuck pixels”. If such a pixel pops up in a visible place, it’s very annoying, especially the red one :) If all three subpixels are faulty at once, then a white dot will glow on the screen.

By the way, defective pixels can either appear or disappear on their own. On my main monitor from the moment I purchased it, there were three multi-colored dots in the middle of the screen. I either didn’t notice them when I bought them, or they already appeared at home, I don’t know. But I didn’t bother about this, because... they were absolutely invisible to the eye unless you looked closely. In 4 years of working with this monitor, I have 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 small defects are not noticeable. So, I recently decided to check whether these pixels can be removed in a new way. I started checking - but they weren’t there! They all went somewhere in formation :)

Programs for restoring dead pixels

There is no need to talk about high-tech methods used only in laboratories. Is it possible in principle to get rid of multi-colored dots at home? YES, it's possible! And I was convinced of this 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 subpixels 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 quickly remove damaged pixels. Experiments mean changing the speed of color changes and the running time of the program.

The restored pixel may become stuck again after some time, 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, you are prompted to first find 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 go straight to recovery.

UDPixel works like this: a square appears in which the colors quickly change, i.e. there is a pixel restoration algorithm working 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 following 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 1x1 or 5x5 pixels. Since it is very difficult to set a 1x1 square to exactly 1 pixel, a 5x5 area is suitable for restoring even one pixel
Flash interval — pixel update speed according to the algorithm. The shorter the time, the faster the speed. Maximum speed at 3 ms.

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

The peculiarity of UDPixel is that during pixel restoration 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, 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 parameters, and you won’t be able to work on the computer at this time.

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

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

Bad Crystal - all-in-one combine

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

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

For mobile phones and game consoles, a video file is generated at the selected resolution. You will need to play it in repeat mode on your smartphone. For your 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 an additional menu, move the mouse to the top of the window. There are four modes available here: Common Clearing (CCM), System Modified (SMF), Complex Force (CFV), Personal Protection (PPM). IN free version Only CCM and PPM work. The remaining two modes should provide a higher percentage of restored pixels. By default, CCM is selected.

Click “Launch” and move the window to the area of dead 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 the case when these are simply accumulations of pixels that are not working correctly. Watch the video:

Next, to prevent the pixels from getting stuck again, it is recommended to turn on automatic mode prevention – 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 couldn’t cope, then it’s time to massage the monitor :) Exactly. Take an ear stick and begin to massage the area of the broken pixel. You just don’t press very hard, but so that streaks appear, and massage the affected area. The case requires perseverance, as it may take from 10 to 30 minutes of work.

If it works - hooray! I congratulate you, you can “polish” this matter with Bad Crystal. And if the pixel stubbornly refuses to recover, then you can try running the program and at the same time massaging the area for 15 minutes, then leave the program running 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 buttons social networks under the article.

Although liquid crystal panels have long ceased to be a dream, even when using the most modern technologies There are defects that can greatly spoil the mood of a perfect purchase. In order to be completely satisfied with the purchased product, you need to check the TV for dead pixels when purchasing.

Today, liquid crystal displays are not something unusual or extraordinary. On the contrary, in addition to televisions, they are present in many devices: computer monitors, phones, cameras, navigators and other similar equipment. LCD basis or LCD technology are liquid crystals. After light from lamps or LEDs passes through a layer of crystals, a corresponding picture appears on the screen.

The matrix of a color TV is a huge number of tiny indivisible rectangular or round cells called pixels. In turn, each such object consists of red, green and blue subpixels. It is these colors, or rather their combinations, that are considered the basis of color television. The simultaneous lighting of all pixels forms a complete image on the screen. Moreover, the more pixels, the clearer the picture. If you look closely at the display, you can easily see the three colored areas of these objects.

The concept of dead pixels, the reasons for their appearance

The number of pixels on the display is so huge that it is almost impossible to guarantee their 100% serviceability. Often on the screen you can see dots glowing in one color, completely motionless, which even with a change in the TV image do not change color or location. It is these objects that are commonly called dead pixels. They can be black, white and colored. There are two reasons for the occurrence of these defects: imperfect technology and ordinary manufacturing defects.

Dead pixels occur in two layers: liquid crystals and thin-film transistors.

After the transistor that controls the liquid crystals fails, black (“dead”) dots appear, indicating non-functioning cells. Subsequent management of these crystals is simply impossible. Such defects are most visible on a light background. Some experts consider it impossible to “treat” them, others argue that using a laser it is possible to partially return the pixel to its working condition.

The second reason is the subpixel frozen in one position. This problem appears in the liquid crystal layer. Such a “stuck” object appears on the display as a white (burning) or colored dot. To eliminate this defect, you can use special programs or carry out a series of physical manipulations. There are cases when dead pixels, after some time, disappear on their own.

Thus, when choosing an LCD TV, it is not enough to pay attention to its appearance, the presence of numerous functions, ports, connectors. It is also important to check the device for matrix defects. Let's try to figure out how to check a TV before buying and protect yourself from purchasing low-quality equipment.

Allowable number of dead pixels

You can often see a picture in stores when a buyer tries to return a newly purchased TV after discovering defects on the screen, in particular, dead pixels. For the sake of truth, we note that usually a dispute between a store and a buyer ends not in favor of the latter. To avoid getting into an unpleasant situation, we recommend choosing a TV very responsibly. In particular, it is worth knowing how to point of sale check the LCD TV when purchasing for dead pixels, get acquainted with certain standards, according to which displays are divided into four classes.

How to check a TV in a retail chain

The information in the table indicates that first class products are completely free of dead pixels. The cost of a product depends on its class.

The picture is formed on the screen by all pixels of the display. For example, Full HD resolution (1920 x 1080) involves more than two million pixels. Knowing the acceptable standards for dead pixels and methods of checking for such defects, it is not difficult to choose high-quality equipment.

Testing of devices can also be carried out using special programs by connecting the TV to a computer or laptop. Often the buyer does not have a computer at hand, so it is extremely difficult to carry out such manipulations in the store. Many stores now offer paid service to check screens for defects. What to do in this case, should you agree or should you still try to cope with this work on your own?

The easiest way is to visually inspect the screen at close range for the presence of a dot glowing in a different color. An ordinary magnifying glass will be a reliable assistant in this check. Detection of blackheads may occur when applied to the screen white field. To find white dots, just make the screen dark. Finding defective color subpixels can be made easier by changing the screen color one by one.

It is important to remember that some defects do not appear immediately, but only after the matrix is heated. Pictures in the form of colored stripes, grids, and checkerboard fills will also help you quickly find malfunctioning subpixels that stand out from the general background.

If you are planning to purchase new technology, first of all, study the relevant information, in particular how to check the TV when purchasing in a store. To carry out testing, you need to select special images and videos. They contain special pictures of different colors that appear alternately on the screen. Then write this information onto a flash drive, and then go get the TV. Videos are usually accompanied by music, which allows you to simultaneously check the quality of the acoustics.

Many today prefer new generation devices with Ultra HD resolution (3840 x 2160). They are characterized by excellent color saturation, ideal transition from one shade to another, the ability to adapt any format in 4K, great sound, many additional functions. To check a 4k TV when purchasing, you need to use pictures with the appropriate resolution.

Is it possible to “cure” dead pixels?

Often, defects on the display appear during operation. Black dots, as mentioned earlier, cannot be removed on your own. As for colored pixels, there are two ways to get rid of them: physical treatment and hardware massage.

The first method involves using a regular cotton swab to massage the damaged area where the “stuck” pixel is located. Such manipulations are carried out in a circular motion with the device turned off. This method cannot be called completely safe, because careless movement not only will not save you, on the contrary, it may add to trouble.

The second method is to use special programs that are easy to find on the Internet. BadCrystal – does not always cope with the task, however, it’s worth a try. Practice shows that it removes stuck spots within a few minutes or a couple of days. The JScreenFix program is no less popular today. She not only finds the defect, but also eliminates it. Operating time from 20 minutes to 10 hours.

Thus, armed with the necessary test kit, you can safely head to the store for a new TV. Rush when checking the device is unacceptable. The test should be completed slowly, examining each section of the screen step by step.

Acceptance of applications from 8:00 to 23:00

A little about dead pixels!

Often in LCD, LED and even OLED TVs there are defects such as Broken Pixel. It usually looks like a dot in an arbitrary area of the screen, of any color.
There are 4 types of “dead pixels”:

*Dead pixels- these are pixels that do not light up (always turned off). On a white background it looks like a black dot.

*Hot pixels- on the contrary, they are always on and on a black background they look like a white dot.

*Stuck pixels may light up red, blue, green or yellow. This occurs because some of the subpixels are always on or always off.

*Group of defective pixels- these are several defective pixels in a 5x5 pixel square.

(click on image for larger view)

Many stores offer TV screen testing for a fee. Of course, this procedure will provide you with a more comfortable viewing experience. But not many people prefer to overpay for something that is easy to produce on their own.

Checking using a USB flash drive

Using these images, you can check your TV for manufacturing defects such as:

dead pixels;
matrix glare;
illumination unevenness;

Copy these images to USB drive and connect it to USB port your TV.

Using the built-in media player, scroll through all the pictures - the matrix defect will be much easier to notice!

If there is a dead pixel, you will definitely see it in the form of a black, white or colored dot in any area of the screen.

Checking using a Laptop

You can also use special program for testing the TV or monitor screen

To do this, you need to connect the TV to your computer or laptop using HDMI cable and run the program.

This program allows you to evaluate not only the presence or absence of dead pixels on the display, but also the uniformity of the matrix backlight, geometric distortions and matrix response time.

You can download a program to check your TV screen for dead pixels using the link: DOWNLOAD

Check with a Professional

You can Call a wizard to set up your TV, as well as checking your TV or monitor screen for dead pixels!

This article will tell you how you can fix a stuck pixel on your LCD monitor that has stopped changing colors. The pixel usually gets stuck on some color other than black or white, and the problem can often be corrected with a couple of in various ways. If the pixel turns out to be broken and not stuck, then it will be impossible to fix it. Likewise, although you have a chance to fix a stuck pixel, it cannot be guaranteed that you will successfully fix it.

Steps

Part 1

Preparing for work

Make sure that the pixel is really just stuck and not broken. Although the terms “dead” and “stuck” pixel are often used interchangeably to refer to problematic pixels, stuck pixels can be fixed, while dead pixels cannot. If a pixel is a specific color other than black, or doesn't change color correctly depending on the background color, it's likely just stuck.

Dead pixels usually remain white or black no matter what is happening on the screen. Even though white dead pixels are sometimes called “hot”, they are not fundamentally different from black dead pixels.
If you find a dead pixel on your monitor, you will need to either have it repaired or have the screen replaced. Also, sometimes (but not always) dead pixels are covered by the manufacturer's warranty for replacement of the device or its screen.

Understand how pixels work. Pixels reflect combinations of red, blue and green colors depending on what is shown on the screen. A pixel can become stuck for a variety of reasons, including using the monitor for too long or after a long period of displaying too much rich colors. When a pixel is stuck, it displays only one color, which may vary slightly depending on the color of the surrounding pixels.
- Again, a dead pixel never changes color regardless of the state of the surrounding pixels.
Check the warranty terms for your LCD monitor. Often, manufacturers are willing to replace a monitor when it has a certain number of stuck or dead pixels. If your monitor is still under warranty, it is best to take advantage of a warranty replacement rather than trying to fix the problem yourself.

Turn off the monitor for 24 hours. If the pixel got stuck recently, then the problem may disappear by itself - just turn off the monitor for a day. There's no guarantee that you'll fix your monitor this way, but a stuck pixel often means the monitor has been in use for too long and it's best to unplug it for a while to prevent further damage.
- Completely unplug the monitor.
Consider having your monitor repaired. Even if the monitor's warranty has already expired, pay professional repair it will be cheaper than buying new monitor due to accidental breakdown of the device as a result of self-repair.

Know that the pixel can work on its own. It is not uncommon for stuck pixels to disappear after some time, however, this period can vary from a few days to several years. If you only have one pixel stuck on an expensive monitor, it is best to refrain from tapping, rubbing, or otherwise physically pushing the monitor to fix the pixel.

Part 2
Using software to fix screen problems
1. Understand how this method works. Screen repair software displays random combinations of red, green and blue at up to 60 flashes of color per second to return the pixel to its normal cycle.
  - There is no guarantee that screen repair software will successfully fix the problem, but it is usually effective in more than half of the cases.
  - There are both paid and free programs for restoring monitor screens. However, free programs are just as effective in repairing pixels that can actually be fixed.
2. Avoid using stuck pixel repair software if you have epilepsy. Since this software displays random flashes of rapidly changing colors on the screen, you may want to avoid using it if you (or anyone in your family) have epileptic seizures.
  
  Visit the JScreenFix website. Go to http://www.jscreenfix.com/ in your browser. JScreenFix is a free online application that can fix stuck pixels.
  
  Scroll down the page and click on the button Launch JScreenFix to launch the application. This button is colored blue and is located at the bottom of the page. It allows you to open JScreenFix in your browser.
  
  Find the stuck pixel. The main part of the screen will be black, so you can easily find the stuck pixel.
  - If the pixel is not located in the black area of the application window, press F11 to go to full screen mode. You may have to hold down the Fn key first to press F11 if the browser doesn't go into full screen mode when you just press F11.
3. Move the flashing repair block of the application to the stuck pixel. Click and drag the flickering block onto the problematic pixel, then release.
  
  Leave the application running for at least 10 minutes. In this case, do not roll up the window, move the repair unit, or turn off the monitor.
  - If possible, leave the application running for a full hour.
4. Check the pixel status. When the required amount of time has passed, close the application window to check the pixel. If the pixel is restored, then the problem is solved.
Part 3
Applying pressure and heat to the problem pixel
1. Turn on your computer and LCD monitor. For this method to work, you must turn on the monitor.
  
  Open the black image. It is critical that the screen actually shows a black image and not be in a no-signal state, as you need the LCD monitor's internal backlight to work.
  
  Find a thin object with a narrow, blunt end. You will need a marker or a pen with a pointed cap, a very blunt pencil, a plastic stylus, or the back of a makeup brush.
  - Before moving forward, please read the warnings at the end of this article. Physical friction can aggravate the condition of the monitor screen.
2. Wrap the end of the selected item with a napkin. This will protect the monitor from scratches.
  - If an object can pierce a napkin, then it is too sharp. Find something else.
3. Use the rounded end of an object to gently press down on the stuck pixel. In this case, a white ripple effect should appear around the point of contact.
  - Try to press exactly on the stuck pixel without affecting the surrounding area.
4. After a few seconds, remove the item. If the pixel remains in the same state, you can reapply this method or switch to using heat. However, if the problem is resolved, turn off the monitor immediately and do not turn it on for at least one hour.
  
  Wet a washcloth with hot water. If possible, heat the water on the stove until the first sign of gas bubbles appears at the bottom of the container (about 88°C), then dip a washcloth in and soak it in the hot water.
  
  Protect your hands. To avoid burning your fingers in subsequent steps, use an oven mitt or thick cloth.
  
  Seal the hot washcloth in a Ziploc bag. This will protect the monitor from moisture. Make sure the bag is securely closed.
5. Apply the washcloth bag to the stuck pixel. Light pressure through the washcloth should release the pixel's contents slightly, potentially aiding in its correction.
  - Never apply the packet to a pixel for more than a few seconds at a time.