white dots on lcd screen quotation

Does anyone know of a resource for causes of different types of LCD monitor defects? I"d like to know what"s causing a seemingly random spread of white dots (at least over 50, more than multiple pixel bulbs in size) to randomly appear and disappear on my screen.

Samsung TVs have led the global smart TVs market share for more than 15 years, with a number of great smart TV series having excellent picture quality, elegant design and great performance. However, like every other TV, they develop faults one of which is when there are white spots on Samsung TV screen.

In this guide, I am going to explain why you are seeing white spots on your Samsung TV screen. With that knowledge in mind, I will then show you 3 proven ways to fix the issue.

The LED diffuser lenses cover the bright LED light bulbs where they serve to diffuse the light from the bulbs uniformly across the TV screen.When they fall off, white light from the LED light bulbs shine directly through the screen.

The white light shining directly through the screen is seen as a white spot on the screen and is known as “orb”. Often, when this happens, more than one diffuser lens is dislodged and a number of white spots are noticed on the screen.

TVs have a backlight in the display panel which has white LED light bulbs equally spaced a few inches apart on equally spaced strips. Each light is covered with a diffuser lens, which diffuses the light equally in all directions to create a uniform bright light from all the bulbs.

These lenses are held to the backlight panel with an adhesive. Eventually, the adhesive can dry out or disintegrate causing one or more diffuser lenses to become dislodged. They may also become dislodged from impact or moisture in air. In the absence of the diffuser lenses, white lights from the LED bulbs shine directly through the TV screen.

If the white spots you have on your Samsung TV screen are circular and about 0.5-2 inches in diameter, then this is most likely the issue. In addition, if you move the TV around, you should hear the sound of the lenses moving around inside the TV panel which confirms that this is the case.

LCD TVs have hundreds of thousands of pixels, and can be more than 2 million of pixels on wider TV screens. For example, if the size of your smart TV screen is 1920 x 1080, then there are 1,920 X 1,080 (=2,073,600 pixels) on the TV.

Although, there are different types of defective pixels, what you have in the case of white spots on TV screens is the hot pixel (or bright dot defect). This happens when pixels whose transistors are “off” are stuck “on”, allowing light to pass through which creates a bright white pixel that is always on.

Finally, if the white spots are very tiny (about the size of a period), then you may have a faulty logic or main board. It could also be the T-Con board, although these are less frequently associated with white spots or dots on TV screens and more associated about horizontal or vertical lines across screen among other display distortions.

Depending on the reason and the situation causing the white spots on your Samsung TV screen, you may need to reattach dislodged LED diffuser lenses or replace the whole backlight array (LED strips). Finally, if you have a hot or stuck pixel, you can also fix that as well.

To fix a Samsung TV with white spots on the screen, you need to reattach the dropped LED diffuser lenses back on the LED lights. To do this, you will need to open up the back of the TV and access the display panel.

Repairing dislodged lenses require opening the TV and disassembling the display play which is quite a delicate part. However, the step-by-step procedures below should guide you in reattaching the lenses and fix white spots on your Samsung TV screen.

In addition, I have also attached a video at the end for visual demonstration which you can watch after going through the step-by-step instructions below.

Carefully lift the screen. While doing this, make sure that you do not bend the screen or place pressure on it to avoid breaking it (I recommend that you use suction cups, so that the whole screen is lifted uniformly)

NOTE:Other LED reflectors might fall off during the process, or at least you may notice that they are loose. In that case, you want to apply some glues on them too.

Just like during disassembly, you need to be careful during the reassembly process. The screen needs to be perfectly aligned when placed and you need to be careful too to avoid breaking or damaging the screen as it’s very delicate.

In some cases, the reason why the original bond disintegrates is because the LED array is old and at the end of its life. In that case, the backlight might fail at anytime and reattaching the dislodged diffuser lenses will only fix it temporarily (although this is not always the case).

In such cases, you may need to replace the whole backlight array which is a more permanent fix. However, if you’ve not been using your TV for a long time, this should not be the case and the first fix should be more than sufficient.

In addition, if you use the wrong type of glue, it might burn the plastic lens eventually which will take you back to seeing white spots on your Samsung TV screen.

You can simply order the backlight array for your TV model online and replace it as a whole. In the absence of other issues, this will extend the TV life for a few more years. Depending on the size of the TV screen, it should cost around $50.

Like I explained earlier, a hot pixel is a defective pixel which remains constantly on, rather than cycling on and off like other pixels do. When this happens, the pixel can show up as a bright white dot and this happens even on recent Samsung tizen OS smart TVs.

While it is often confused with a dead pixel, the latter is actually stuck in the “off” position and hence shows up as a small black dot on the screen.

Try waiting it out first. Sometimes, hot or stuck pixels can disappear on their own with time. However, there is no specific duration for how long this might take (if it will work)

Next, rub the stuck pixel with a damp cloth or a pointy but soft item (like rubber or eraser). While doing this, make sure you don’t put too much pressure on the pixel and also don’t put pressure anywhere else on the screen to avoid triggering more stuck pixels on your screen. Also, make sure you do this while the TV is turned on. If it is a case of stuck or hot pixel, this might fix it for you.

In most cases, to fix a Samsung TV with white spots or dots on screen, the dislodged diffuser lenses need to be reattached or you need to replace the whole backlight array. Reattaching the diffuser lenses should cost around $50, while replacing the whole backlight array should cost around $100 for the replacement array plus service charge.

You can do this at trusted repair service centers if you no longer have warranty. However, if you still have warranty on your Samsung TV, your best bet is to contact Samsung directly for a fix under warranty.

If you find yourself in a situation where you notice white spots or dots on the TV screen, don"t worry. This problem is known to occur on most LCD TVs and is really simple to fix. The white spots you notice are the LED backlight light inside the TV.

Due to frequent use or poor quality, some parts inside the TV may move out of their position and cause white spots or dots to be projected on the screen. In this article we will explain why this problem occurs and how to fix it. So let"s get started.

So what are the causes of white spots or spots on the TV screen? White spots or spots on the LCD TV are the result of a dropped reflector (lens) inside the LCD TV panel. These reflectors are placed in front of the LED backlight and are used to spread the LED light across the screen. They usually fall out due to poor quality or the heat created inside the TV.

When you open the TV you will find a series of LED lights covered with reflectors or plastic lenses. These lenses are mostly glued in front of the LED backlight, and as the TV gets hot with use, they start to fall off their spot and create white dots or spots on the TV screen.

As we said above, these white spots or spots on the TV screen appear very often due to overheating issues and poor screen quality. Anyone who has paid attention knows that older TVs are practically unaffected by this image error.

This problem is mainly found in televisions with LED backlighting, more precisely the so-called side LED backlight. Behind the panel is a light conducting plastic plate.

Dead Pixel: Each LCD and LED TV is made up of millions of pixels or dots whose main purpose is to illuminate and produce the image on the TV screen. Sometimes, the problem can occur if some pixels are damaged and get stuck in a particular state that is causing the problem and appear as white spots on the TV screen.

LED Reflectors: Each LCD TV is equipped with a reflector (lens) which helps to facilitate and diffuse the LED light on the screen. Sometimes, these spotlights loosen and fall out of place. When this happens, you will notice the white bright spot on the TV screen. In most cases, you will have several white spots or smudges on the screen, not just one.

To solve the problem of white spots on the TV screen, you will have to open the TV and with the help of the super fast glue you will have to put the fallen reflector back into place.

Whether or not you are experienced in repairing TVs or gadgets, if you follow the instructions below, I believe you will be able to repair your TV and get rid of the white spots on your TV screen. You will need to take apart your LCD TV and return the fallen reflectors to their original position with the help of glue. What you will need is the following:

If you already own an LCD TV or have decided to buy one, the testing process is identical. I always give it a try before deciding to buy a new LCD TV. New models may also have problems with white spots or spots.

During transportation or due to poor installation quality, the round reflectors can fall out of place and cause white spots. So to test a TV before purchasing and see if the image defect is present you can do a simple test.

Note! You can also press Pause during a movie when the screen is black to test the LCD TV to see if there are any white spots or spots on the TV screen.

White spots (dots) on the TV screen are a very common problem on LCD TVs. Almost all LCD TVs operate using a small chip made up of millions of tiny mirrors. Each mirror is like a dot or a pixel on that screen.

When the spotlight or lens moves from its original position, these white dots appear on the screen. But in some cases, there may be more damage to the TV screen than a simple displaced spotlight or dead pixel, and it can cost you more than a new television.

Therefore, it is recommended to contact a specialist if you notice that the problem is not only with the displaced reflectors but something more. Please note that if your TV is under warranty, it is recommended that you contact a service center and let them take care of this issue. They have more experience with this type of problem and will fix your TV for free.

The problem of spots or white spots on the TV screen is nothing new and can appear on almost any LCD or LED TV, whether they are completely new or used. We have already mentioned in this article that this problem can be solved very easily and you don"t need to be afraid.

You can take apart the TV and see if the reflective lenses have fallen off and use super glue to put them back in place. If you think you can"t fix this on your own, contact a TV service technician and let them do the job. I hope that we have helped you at least a little and that you will be able to solve the problem with the white dots on your television screen.

I had purchase one LG 42" LED TV from Khosla Electronics Pvt. Ltd.(Kolkata Nagerbazar branch) on 9th June 2014. Invoice number is 3324/1415/02145. Make is LG 16108000004328 and Model no is 42LB5610. ATR 405PLVC008415.

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White dots on DLP type TVs is a common problem. These TVs make the picture with a small chip made up of millions of tiny mirrors. Each one of those mirrors is like a pixel or dot on the screen. When the chip starts to fail, mirrors get stuck in the on or off position causing white dots or black dots. Most of the time they are white.

DIY Fix for removing white spots and pressure point dots from LED screens, LCD monitors & TVs. With disassembly guide for BenQ GW2470 showing how to take the monitor apart.

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