spots on lcd screen brands

Are you looking for how to get rid of those irritating spots on your phone screen? This article shows you everything you need to know on how to fix pressure spots on LCD screens and how to prevent them in the future.

One of the deadliest and most frustrating issues you could have with your mobile phone is screen damages. And for pressure spots on LCD screens, it"s somewhat annoying than breaking the whole screen itself, as it requires going for replacement in most cases.

As its name implies, pressure spots on phone screens can render the display useless (or irritating, based on how you see it) by creating spots of different shapes and styles on the screen. These spots show continually, and most times, permanently on the display and can obstruct your viewing or cause other problems such as dead pixels, flickering, or blurriness.

When you apply too much pressure on your phone’s display – whether accidentally, intentionally, or carelessly, it damaged the LCD components, hence creating different spots on the display.

Pressure spots on LCD screens can come in different forms and shapes depending on the density of pressure applied. Sometimes, the spots can be whitish, deep black, or come in various colors depending on what’s currently showing on the screen.

Unfortunately, learning how to fix pressure spots on LCD screens isn"t the same as learning how to fix simple hardware and software issues. Simply put, there is no way to repair a phone screen that was damaged by pressure.

Attempting to get rid of pressure spots on LCD screens can cause more harm than good. Hence, you had better find a professional phone repairer to help you with screen replacement.

Meanwhile, some users reported that the pressure spots on their phone screen got healed after a few years. But do you want to keep seeing the same issue on your screen for years? So, a screen replacement is the only way out.

Fortunately, if you use a TECNO, Infinix, or itel smartphone, Carlcare Service is the best bet for you when it comes to replacing your damaged screen and fixing other issues on the device. We"re the official after-sales service provider to render professional repair and customer services for these brands.

And if you’ve bought our extra Screen Protection Plan for your TECNO, Infinix, or itel device earlier, you might be able to replace your screen for free, or better still, get huge discounts on-screen replacement at Carlcare.

Also, if you notice pressure spots on your Syinix TV, the best thing to do is bring it down to our service centre for proper screen replacement with genuine stock parts.

Paying for screen replacement from your own pocket (especially when you don’t have any form of screen insurance or protection plan), can be a pain in the ass. However, there’s probably nothing you could have done better than learning how to protect your phone screen from pressure spots in the future.

Pressure spots on LCD screens (or any screen in general) occur accidentally or carelessly. The only way to avoid such damage in the future is to handle your phone carefully. Try as much to shun applying much pressure on the screen while playing games and performing other tasks.

When inserting your phone into your pocket, purse or bag, ensure there"s enough space to accommodate it. Also, ensure there are no other objects inside the pocket, purse, or bag.

Equally important, if you"re wearing a dress with tight pockets, we recommend you keep your phone somewhere else rather than forcing it inside the pocket, as it may be pressurized when you move your body.

Overall, the only way to prevent your phone screen from getting pressure spots in the feature is to handle it carefully whenever and wherever possible. If you ever come across the need to drop your phone somewhere, ensure you don’t place anything on it.

Taking these few things into consideration would help you protect your phone screen from pressure spots in the future, rather than looking for how to fix pressure spots on LCD screen when it happens.

Now, if you’ve accidentally applied much pressure on your phone’s screen and some spots are showing on it when you turn it on, the best thing you can do is to visit the official service provider for your device for a screen replacement. Trying to shift the spots away or performing some DIY tricks may cause more harm than good.

With an LCD TV you can watch your favorite movies, cartoons, and series in excellent quality with high definition and good sound. However, owners of LCD monitors may encounter the problem of dark spots appearing on the screen. Let’s take a closer look at the reasons for their appearance and what are the best solutions to repair them.

So What Causes Dark Spots on TV Screen?Dark (black) spots on LCD TVs are typically caused by either debris or superficial dirt, a dead pixel, or a stuck pixel. Of all these problems, the easiest problem to fix is debris or superficial dirt. On the contrary, stuck pixels are harder to fix, while dead pixels are the hardest problem to fix.

It is very often, that dark spots appear on LCD TV screens, including popular brands such as Samsung, Sony, LG, and others. They can be localized in one corner, centered, or in several places at once.

Spots do not disappear when switching channels. Even when your TV is off, you can notice that glare is visible in their place. Moreover, blackouts can be not only black or dark gray but also white or colored. This most likely indicates the color errors or other problems.

Manufacturing defects. It is quite rare and manifests itself immediately. The reason is a violation of the assembly technology, leading to damage to the display matrix. The specialists of the warranty service center should eliminate such a malfunction free of charge. And in order not to buy a bad TV, you need to carefully examine the equipment in the store.

Mechanical damage. An especially common reason is when there are children in the house playing with a ball in the apartment. A strong blow or pressure will stain the CRT. Broken pixels first appear in the affected area, then spread across the screen.

Ingress of moisture or air under the protective glass. The reason is poor transportation or improper care. Do not wipe the monitor with water or a heavily dampened cloth.

The effect of high temperature. The presence of a heat source near the device leads to various malfunctions, including the appearance of yellow spots due to the delamination of the matrix.

Dust getting under the case. If you take care of household appliances incorrectly, one small black dot can develop into a large dark spot, which only the masters of the SC (service center) can remove.

Before trying to disassemble an LCD TV or hand it over to a service center, it is worth excluding software failures that are possible with digital broadcasting. The test scheme for Samsung, Sony, and LG are common. There may be some nuances depending on the TV model.

If the black spots on your LCD TV screen disappear, the cause was most likely a software failure. In such a situation, it is not necessary to disassemble or repair the device in the service. If the malfunction remains, it is better to contact a professional to repair an expensive modern TV.

One of the reasons for the appearance of spots in the external adhesion of dirt, dust. In such a situation, it is not necessary to disassemble the equipment or reboot it. It is enough to wash the screen surface. For this:

If a defect appears due to water ingress, rinse the matrix. This requires a special detergent. Running water is not suitable. It contains a large number of invisible impurities, abrasive particles that will settle on the matrix and make the situation even worse.

Cleaning should be done in a well-ventilated area with good ventilation to remove dark spots from the TV matrix. It is advisable to turn on a humidifier, if available. Use soft cotton gloves to clean.

If you wish, you can carry out the replacement yourself if you have the skills to work with household television appliances. The repair instructions are as follows:

Important! If the TV is still under warranty, you do not need to disassemble it yourself. After any of your interventions, the warranty card will expire. And the repairs will be carried out for you free of charge or with a big discount and at the service center.

Rarely wiping the surface from dirt and dust leads to the ingress of microparticles on the matrix. Over time, a large dark spot is born from a small black dot. With the following actions you can save your TV from manifestations:

If the dark spots have not disappeared after all the manipulations, the Sony, Samsung, or any other manufacturer’sTV must be carried to the workshop for a full diagnosis and repair.

If a dark (black) spot appears due to moisture or dust, you can easily fix this problem by yourself. If on the other hand streaks appeared due to mechanical stress or strong exposure to high temperatures, which in most cases led to matrix delamination or failure of loops, then it is necessary to carry that equipment to the workshop.

In most cases it takes from 1 to 5 working days to repair and remove dark spots on a TV screen, depending on the workload of the wizard and the availability of parts in the service. The cost of repairs depends on the degree of damage and the price of spare parts.

Proper care of household appliances is the key to their correct operation for a long time. To avoid the appearance of dark spots, streaks on the screen of a plasma, liquid crystal TV, follow these recommendations:

Do not overheat the equipment. TVs can work around the clock, but this has a bad effect on their performance, color rendition, and image playback speed.

Taking care of your LCD or plasma TV in this way will save you from the appearance of dark spots on the screen. Try to avoid mechanical damage. Explain to the children that technology is not a toy. And enjoy digital TV for years on end.

Light, colored spots and streaks are removed by other methods. General repair method only in cases with software failure. Therefore, if any screen defects appear, just try to completely restart the equipment and reset the router to factory settings.

Having black spots on a TV screen can be very confusing and annoying for most TV owners. If you just spotted a black spot on your TV screen, you are probably worried that you’ll need to replace the entire set. But this should not be the case, especially since you spent a handsome figure getting the best TV available.

Perhaps the most common cause of black spots is dirt and debris that have accumulated on the surface of the TV screen over time. If ignored, it will lead to black spots.

Most TV owners would consider sending their TVs back to their manufacturer when they spot a black spot, like sending your best Vizio TV back to Vizio. Unfortunately, this can be time-consuming and expensive, especially if you’ve invested in one of the highest-rated OLED TVs and/or large models like the top 70-inch TV. While most new TVs sold are smart TVs, you can still buy what is referred to now as “dumb TVs”. If you want a TV without apps and an internet connection, this is the TV for you. If that interests you, check out these top-rated dumb TVs. But keep in mind, unlike most new TVs, dumb TVs will usually be smaller like a 24-inch size TV for example. Regardless if the TV is smart or dumb it can develop black spots, however. Fortunately, fixing a black spot is relatively easy. As a result, we have compiled a guide on how to fix a black spot on a TV screen.

Black spots can be a pain, especially if you just bought a wide color gamut TV and are looking to have enjoyable weekends. Regardless of where the black spot is located on your TV screen, it will stand out like a sore thumb. It’ll be the first thing you spot when your TV screen lights up. Black spots on your TV screen are caused by debris, dead pixels, or stuck pixels. This can be especially annoying if you invested in the best anti-glare TV and depend on good visuals for a good TV experience.Dirt or Debris: Perhaps the most common cause of black spots. Dirt and debris accumulate on the surface of the TV screen over time, and if ignored, will lead to black spots. If you have the best outdoor TV, be sure to keep up with maintenance and regularly clean it.

Manufacturer defect: Black spots will appear due to a violation of the assembly. They don’t appear immediately and often lead to damage to the display matrix. Black spots caused by manufacturer defects are usually covered by a warranty.

Stuck Pixel: A stuck pixel is a pixel on the TV display that cannot change color. Display pixels are designed to change color depending on the image projected on display. When the color doesn’t change, it’s called a stuck pixel.

Dead pixel: It’s pretty different from a stuck pixel but often gets confused for one. While a stuck pixel will light up when the TV is turned on but does not change color, a dead pixel doesn’t light up at all. This is because all of their sub-pixels are turned off permanently, and since they don’t light up, they look like black spots on the TV screen. You can read our article on how to fix dead pixels on a TV to learn more about dead pixels.

Fixing black spots on your TV screen is quite simple.First, turn off your television and unplug it from the power source for a few hours. Sometimes, turning off the power on your TV will force the stuck pixel to become unstuck when you finally plug your TV back to the mains.

Next, verify that the black spot issues aren’t caused by any devices plugged into your TV, like a console or cable box. Remove all cables connecting your TV to components, and then plug them back in. Sometimes, loose connections cause distorted images that look like dead pixels.

If a black spot is still visible, contact your manufacturer or repair shop for repair service. Depending on the time and nature of the black spot, The TV manufacturer might cover the repair under warranty. You can also try the clouding LED TV fix, which solves the black spot problem that is common among new TVs but often disappears as time goes by.

Regardless of where the black spot is located on your TV screen, it will stand out like a sore thumb. It’ll be the first thing you spot when your TV screen lights up.

While a stuck pixel will light up when the TV is turned on but does not change color, a dead pixel doesn’t light up at all. This is because all of their sub-pixels are turned off permanently, and since they don’t light up, they look like black spots on the TV screen.

Perhaps the most common cause of black spots is dirt and debris that have accumulated on the surface of the TV screen over time. If ignored, it will lead to black spots.

LCD hot spots produce an uneven flow of LCD lighting and occur when areas of the LCD are very bright (hot), making other areas dim (cold). This only happens on monochrome displays such as character displays and custom segment technology.

These older technologies produced an even flow of light, eliminating the need for a diffuser. But now all displays use LEDs and care must be taken when designing and building a custom LCD module.

Don’t modify the current limiting resistor for the LED backlight (the lower the resistance, the brighter the backlight and the shorter the half-life).

SecretCeremony from what I"ve read it looks like voltage issues on the LED driver board that control the LED"s. I would start with a new main board (yes I"d buy it from somewhere where I can return it in case it does not work) then re-evaluate on that.

The LCD panel will be connect to a driver board that is part of the panel, take a look on that one and see what you find. Post some good images of that board with your question so we may be lucky and find some sort of schematic etc. I would even contemplate on getting a universal driver for the panel just to see if the same issues are present when every board from the TV is disconnected. Sounds like a lot of work and maybe even some $$$ foolishly spend but I do not like to concede defeat.

You have discovered a black spot on your laptop screen, and you are not alone! Finding a black mark on your LCD can be disheartening, but there are steps you can take to get rid of it. So, if you are here to know how to fix black spots on a laptop, do not skip any part of this article and read until the end.

The black spots are just surface blemishes that appear 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. Although these can easily be fixed, it is crucial to have a proper understanding of what causes the spots so you can take measures to prevent them from appearing again in the future.

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

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

These spots are typically easy to remove without damaging the monitor. However, failing to clean the dirt or debris on a regular basis, more of them will appear and gradually 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.

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

Different types of pixel defects happen on LCD screens, including dead pixels and stuck pixels. Identifying the problem correctly will help you to choose the right methods to fix it that will not result in damaging the screen any further.

Most laptops have some pixel problems 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 during regular use as they are not bright spots, and if your laptop is free from pixel issues when you buy it, consider yourself lucky.

LCD manufacturing technology has improved dramatically over the years, and today’s panels almost don’t come with any such problem. However, as earlier as a few years back, there were times when defective pixels or vertical/horizontal lines would be let out into the market for lower-cost models.

When a pixel gets permanently damaged, it fails to receive power, resulting in a dark or black spot on your laptop display. This specific malfunction can occur during the manufacturing process of LCD monitors, and it is sort of permanent, which does not recover over time.

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

Unlike dead pixels, 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.

Every modern laptop comes with a built-in LCD diagnostic mode that can successfully identify any pixel malfunction on your laptop’s screen. Follow the step-by-step method as below –

Now, turn the laptop on while pressing and holding the D key at the same time, and you will be taken to the self-test mode. Do not release the D key until the color bars appear on the LCD.

The monitor should display multiple color bars that constantly change from one color to another, which you want to inspect carefully in order to find out any distortion or irregular pixels.

On the contrary, stuck pixels are not dead and can receive power like other normal pixels; however, they get stuck on a single color always (hence, the name), which is either red, blue, or green.

However, it’s tricky to differentiate between dead and stuck pixels by naked eyes; therefore, you may want 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 any defective pixel is relatively easy using these apps. They run single solid colors on your display so that you can quickly find out the malfunctioning pixel that doesn’t match the color of the rest of the screen real estate. You can further ensure whether it is a dead or stuck pixel before you attempt to fix it.

The common causes of an LCD monitor having a bad pixel are the following: extremely high or low temperature, a sudden drop in voltage, high levels of humidity, and static display over an extended period.

Keeping your laptop unprotected close to a heating source can force the pixels on the LCD to get solidified. Even lower temperatures below the allowed limit can lead to the same result.

Read the user manual for the ideal range of humidity levels within which you should operate your laptop. Keeping your LCD screen powered on in a high level of humidity may cause tiny droplets of moisture to enter the inside exposed areas of your display, resulting in a pixel malfunction.

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 contrast, 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.

If you find that your LCD panel 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 LCD 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.

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 internet connection, and you are good to go. Below is a step-by-step guide that will walk you through the steps to solve the problem!

Once you have it on your laptop – open it up, move the red box to the area where you marked the dead pixel, set the timer, and click the “Start Flashing” button.

You would be in luck if your laptop was still under warranty period when you noticed the pixel defect. Take the unit to the official service center or the retailer you purchased it from and ask about the warranty claim process. In the majority of cases, any such pixel damages are considered manufacturing defects, and the company will simply replace the LCD.

No, both are different conditions. While dead pixels mean literally dead or not able to be activated or powered on and hence display no color, a stuck pixel does turn on and sticks to a single color instead of constantly shifting to red, green, and blue as required like a healthy and working pixel.

It depends. If you are experiencing a stuck pixel problem on your screen, it will likely recover by itself after a while in the majority of cases, without any user input. On the other hand, a dead pixel is more or less a permanent condition.

For stuck pixels, you have little to worry about as they usually disappear over time. However, dead pixels are mostly not user repairable. With that’s being said, JScreenFix and PixelHealer are two incredibly effective software solutions that you can use to restore your stuck and dead pixels – experts found their success rates pretty high.

Before you start looking for how to fix black spots on a laptop, it’s crucial to figure out exactly what caused the condition. Typically 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 shop or claim a replacement from the brand if it’s still under the warranty period.

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Screens can scratch easily, and even paper towels and tissues contain fibers that can do damage. “Your best bet is to use a soft, anti-static microfiber cloth—the kind used to clean eyeglasses and camera lenses—and wipe in a circular motion,” says John Walsh, who cleans more than 250 TVs a year in his role as a CR photographer. (Some TV manufacturers will include a cloth for this purpose.) “Gently wipe the screen with a dry cloth to remove dust and other debris, but don’t press too hard,” he says.

You may also want to wipe down the TV’s cabinet, and make sure dust isn’t clogging the vents that help dissipate heat. If the TV is on a stand and not tethered to the wall, Walsh suggests cleaning with one hand while supporting the TV with the other to prevent the set from tipping over. However, CR strongly recommends anchoring all stand-mounted TVs using anti-tipping straps designed for this purpose.

If there are hard-to-remove stains, you can dampen the cloth slightly with distilled water and gently clean the screen. Don’t spray water directly onto the screen; that could cause a shock or component failure if water seeps into the inner workings of the set.

For the most stubborn stains, you can try using a solution of very mild dish soap highly diluted with water, once again applied to the cloth and not to the TV itself. (As a guideline, Panasonic used to recommend a 100:1 ratio of water to soap.) LCD screens, in particular, are very sensitive to pressure and can scratch easily, so don’t press hard.

Displays on smartphones, TVs, monitors, and any other displays that we use nowadays have much better quality and are available in different types like LCD, AMOLED, OLED, and SuperAMOLED. Also, it comes with higher refresh rate options, which are greater than the standard 60Hz refresh rate. The modern displays also come with flexible displays, which are often used in foldable phones and curved monitors. Although the displays have improved, some of the display issues are still the same. They haven’t changed much but are minimized at a certain rate. If you have dead pixels on your phone and want to know how to fix them, this article will help you with that. It will help you understand how and why the black dot on your phone screen appears and how to remove black spots from your LCD screen.

The black dot on your phone screen you see is due to the pixels which don’t light up, often recognized as dead pixels or stuck pixels. This black dot can appear due to a manufacturing defect or due to a damaged internal part of your smartphone. The black dot can appear anywhere on the screen. If it’s on the side of the screen, you might not be able to notice it. But if it’s somewhere in middle, it can annoy you and can destroy your viewing experience.

The big black dot on your screen can appear due to dead pixels or stuck pixels. The dead or stuck pixel is a manufacturing defect and can be repaired. If a single pixel is dead or stuck, it is not easy to notice on bigger screens. But on smaller screens, you will find it annoying. Dead pixels are the one that does not receive power and hence doesn’t light up. And Stuck pixels are the one that receives power, but the signals coming from the processing unit are stuck somewhere and haven’t reached the pixel.

A dead pixel you see on your phone is a manufacturing defect. Due to this defect, a pixel on your smartphone screen appears to be dark or black in color. And the reason for it to be dark is that the pixel is not receiving power at all to light up and show color. This kind of issue happens in usually low-priced phones from an unknown brand. Whenever you are purchasing a phone, make sure to get the best display available to avoid dead pixel issues.

Up to 10 dead pixels are acceptable on the screen, but only at different places. Depending on the screen resolution, the screen manufacturers have set up some standard numbers to which they can allow the display to be marked as working properly. On monitors and TVs, one or two dead pixels can’t be even seen from the viewing angle. But if you go closer, you can see it. In the case of smartphones, the display size is small as compared to monitors and TVs. So there, you can see the dead pixels easily, and it’s too upsetting.

Yes, LCD bleed spreads. Screen bleeding is the most common issue in LCDs, and it can spread over time and gets worse, but sometimes it’s not that annoying. You can check if your LCD screen is bleeding by changing your wallpaper to a black picture. If you see some dim white lights on the screen, that means your screen is bleeding. So, it really means that there is some issue with the light blocking your LCD screen.

Following the above steps will remove black spots from your LCD screen. If these steps don’t work, you can visit the nearest mobile repair shopor the authorized repair service center.

Contact Samsung Customer Care to book an appointment for your device repair or directly visit the nearest Samsung repair center to get your display replaced or repaired. This approach will surely help you remove the black dot from your Samsung phone.

So, we hope you have understood what is the black dot on your phone screen with the detailed steps to your aid. You can let us know any queries or suggestions about any other topic you want us to make an article on. Drop them in the comments section below for us to know.

There are many reasons why dark black spots appear on the TV. But in most cases, their presence indicates damage to the matrix. And it doesn’t have to be mechanical. It is possible that the diffuser peeled off due to a manufacturing defect. And sometimes a dark spot on the TV can be eliminated by yourself! But in most cases, you have to seek help from an authorized service center of the manufacturer.

The basis of any modern TV (and monitor too) is a matrix. And it consists of several layers, in particular:Polarizing filter . Adjusts the transmission of light emitted by the backlight.

External polarizing filter . If it is missing, then instead of the image on the screen there will be only a dark gray background. Even if the layer of liquid crystals, as well as the backlight, function properly.

Also behind the matrix is ​​an LED backlight. It is placed evenly over the entire diagonal plane of the TV. As a rule, this is an LED strip, where each element is connected in parallel (in some TVs it also happens in series, but this design is usually not used now).And LEDs also have their own operational resource (on average – from 30 to 50 thousand hours).

failure of the video chip (graphic processor, which is responsible for processing the digital signal, converting it and outputting it to the liquid crystal matrix).

Experts say that they can be provoked either by mechanical damage to the TV (impact on the matrix), or sudden voltage drops (in particular, exceeding its permissible value, over 230 – 250 Volts). Therefore, if the current in the home electrical network is not stable, then it is recommended to connect the TV through an external voltage regulator – this really helps to extend the operational life of the equipment.

Indicates an open circuit supplying one of the liquid crystal zones. It is impossible to repair such a breakdown. There is also always a risk that such spots will increase in size over time. That is, with a probability of 95%, the matrix will soon become unusable. It should also be noted that operating a TV with a damaged mechanically damaged matrix is ​​not a good idea. There is a possibility that there is a short circuit between the supply circuits of the matrix, which will also lead to the failure of the inverter, or even the GPU. Repairing such breakdowns is impractical. That is, in the future you will have to purchase a new TV to replace the old one.

Failure of the inverter, which is responsible for supplying current to the backlight . In this case, the LED may initially not work only in a certain zone (for example, in the upper left corner). But in the future, other lighting zones will definitely be de-energized.

It looks more like a blackout zone with a corresponding halo rather than a separate dark spot. But at the same time, if you shine a powerful flashlight on the darkened part, you will notice that the image is displayed normally on the liquid crystal matrix. It just doesn’t light up. You should not do something on your own, it is better to contact an authorized service center for help as soon as possible. It should also be noted that if the backlight is damaged, it can periodically recover on its own. But this is a short-term effect. It is only additional confirmation that there is a violation in the supply circuits of LED strips.

In principle, the causes of spots for almost all TVs are the same, since the structure of the matrix and the principle of displaying the image are similar. But there are a few exceptions:On Samsung TVs with AMOLED matrices, dark spots may indicate matrix “burn-in”. There is no backlighting, as each pixel is technically an organic LED. At the same time, the spots look like an afterimage (they are often called “ghosts”).

Dark spots on the LG TV screen are sometimes the result of a software glitch! More precisely, because of the violation of the AVI and MPEG4 codec coding technology. In such cases, a banal firmware update using the built-in tools of the TV itself helps. With this problem, dark spots appear in different places every time you turn it on, without any cyclical order.

In very rare cases, dark spots disappear on their own over time. This happens if they appear due to delamination of the polarization layer with a slight overheating of the matrix. But this is about 0.5% of all cases. In other situations, a visit to the service center is required. And the faster, the better. How can the risk of stains be minimized? The following recommendations must be followed:by any available means to level possible mechanical damage to the TV (for example, if there are small children in the house, then it is better to place the TV on the wall at a height of at least 1.5 – 1.7 meters);