What Causes White Spots or Dots on TV Screen | Reasons & Solution

Nowadays, it is pervasive to see problems with televisions, especially LCD; many of these problems affect the picture quality. This is where the question arises: what causes white spots or dots on the TV screen? White spots or dots on a TV may be the result of poor processing, overheating during summer, and colder temperatures in winter. But if not, such problems can be caused by surges from electricity supplies that vary throughout the year. The white dots on your screen could just come down to an inconsistent power supply for instance as opposed to any other problem with your electronics like processor damage or overheating.

Learn More: How To Save Electronics Damaged By Batteries

White spots, bright stars or white cloud on LCD TV screen means only one thing: a worn-out DMD chip. The TV white spot problem occurs after two to five years, usually when the warranty has expired. Some brands seem more vulnerable than others to white spot syndrome. Samsung, Sony, and Mitsubishi televisions have suffered from problems for several years.

Other brands decide to recall TVs following complaints by dissatisfied owners.

Please read the many forums that offer solutions, and you will see customers receiving quotes of $600 and more to resolve the white spot on LCD screen fix syndrome or replace the DMD DLP chip. Fortunately, some companies offer the DLP chip for less than $300.

What Causes Spots or White Dots on the Screen?

What Causes Spots or White Dots on the Screen

Many televisions tend to have this little problem. Televisions today are a must-have item in the home. Customers like to relax and enjoy their time watching TV and relaxing with their favourite shows or movies without worrying about white spots on the TV screen – Samsung.

However, white spots on TV screens LG can be frightening to watch and cause users to miss some of the content on display. A simple solution is to substitute the TV or display with a new set, but this is expensive, and most users will not want to do it.

How to Fix & Repair White Spots or Dots on TV Screen

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STEP 1

Remove the TV from the wall mount and place it face down on a firm table or shelf.

STEP 2

Take off the rear side panel by undoing all the screws step by step. Store them in a convenient place for later access.

STEP 3

Remove the speaker connections by pulling out the wires from both sides.

STEP 4

Remove the screws holding the source printed circuit boards (PCBs) on the bottom of the device. Also, disconnect the wires leading to the top PCB.

STEP 5

Remove the screws from the outer support of the LCD. You will then remove the housing that surrounds the display.

STEP 6

Use the suction cups to remove the display panel from the inner casing. This procedure requires great care and the help of an assistant, as the glass panel is very delicate.

STEP 7

Insert it in a safe and secure location and free the clamps that hold the bracket that holds the inner casing in place.

STEP 8

In front of you, you should see a bright white panel. It will have diffuser sheets that distribute the light evenly across the LCD and LED. Carefully remove these sheets and store them in a clean space.

STEP 9

  • Now comes the central theme. Small rotating floodlights that fit over the LED backlights are visible.
  • Insert safely and unlock the brackets that hold the bracket that holds the inner casing in place.
  • Reverse the whole process in reverse order to remount LCD. Carry out all of the steps individually, one by one, and take enough time for the whole process.

A lengthy and time-consuming operation that requires technical training

Make sure you take someone with you who is familiar with LCD panels if this is the first time you do so. It is better to have it fixed by a professional if you are still unsure of the process.

Removing the palm pressure mark from the LCD screen

  • Have you ever seen a slight change on the screen in a particular area that is only noticeable once you look for it?
  • Although the marks are often barely visible, you may want to get rid of them to avoid further inconvenience later on in the bulbs.
  • Marks mainly occur during the packing/unpacking process of televisions.
  • To prevent them, people should always hold screens from top to bottom where they wrap their hands around the panel.
  • Keep fingers back and do not exert too much pressure on the screen. Apply the cupping glasses in the parking areas.
  • This will remove them in most cases, but you will need to replace the screen if they remain.
  • For the most part, these pressure marks are insignificant, so you can continue to use the device as is.

Learn More: How To Make Curved Projector Screen

What are the Common Problems with LCDs?

What are the Common Problems with LCDs

Users are usually happy after buying a good LCD monitor or TV, but they don’t realize their problems with the times.

Some common problems encountered with most displays are:

Flickering

  • You may have noticed the sudden flickering or flickering of the LCD screen usually after turning it on.
  • The main reason behind this is the loose video cable.
  • It is loose from the monitor connection in most cases, so the screen will stabilize if you tighten it there.
  • The cable may be defective so that you will need a new one in that case. Another reason behind flickering is incorrect refresh rate settings.
  • Most monitors operate with a refresh rate of 60 Hz. Newer models, developed primarily for gaming; also have a higher refresh rate.
  • Therefore, you should look at a recommended rate of the screen’s refresh and set it appropriately from the settings.

Vertical lines

  • Viewers have given reports of visible vertical lines on displays that can be of any color.
  • The most common problem is with the LCD screen. This can be done by applying a little compression to the problem area and see if the lines change in any way.
  • If so, your LCD is damaged and would need to undergo repair. Therefore, the problem lies in the hardware.
  • However, you can check the display settings from the control panel to verify that everything appears to set to the recommended level.
  • Always keep your display drivers up to date and verify that the graphics card is also working correctly.

Read More: How to Make a Rear Projector Screen

Dead Pixels

  • Again, this problem is encountered where a black dot or how to fix a black dot on an LCD screen starts to appear on the screen permanently.
  • It happens because the pixel behind that part of the screen does not light up.
  • Do customers often inquire about the appropriate way to fix a stuck pixel on an LCD screen?
  • However, it neither affects their monitor nor their overall performance in any way, and there is still some software that can help repair dead or stuck pixels.
  • The programs force the affected pixel area to change color quickly, which can solve the problem.

Repeat this step for a few weeks before any change is visible.

  • Some users have also reported that it started working again after repeated attempts by applying pressure on the stuck pixel.
  • There is, however, a hazard in using this technique, as it can unknowingly result in damage to the screen, which will take a heavy toll on your wallet.
  • Waiting and keeping the device in use until it no longer extends to the screen is the best way to deal with dead pixels.

Cracks and Spots

  • If you see a crack or a spot on the screen that is significantly different from other colors on the screen, it means that the LCD screen has suffered some physical damage.
  • It can be due to monitor dropping off, fluid splashing on display, a sharp object hitting the screen, or any similar event.
  • Unfortunately, you will have to replace the screen because it is not possible to repair such damage.
  • The internal components of the screen are damaged and, for the most part, cannot be repaired.

Buzzing sounds

  • Have you heard a slight humming sound while working on your computer? This is most likely due to a problem with the display backlight.
  • Older monitors used fluorescent lighting tubes that are known to malfunction easily. 
  • LED monitors have significantly improved their efficiency and reliability, but power fluctuations can also cause sounds in them.
  • If the computer has regular power supply interruptions, consider keeping a charge regulator with the computer.

Incorrect resolution

  • Have you experienced a change in screen resolution or brightness? The main reason behind this is the graphics card.
  • This may be a problem with the driver that a firmware update or reinstallation may resolve.
  • If the problem persists, you will need a new graphics card for your device. Sometimes you may need to replace the port if other components are working fine.
  • The battery may have a problem charging because screens often adjust themselves while charging and discharging.
  • In such a case, you will then need to swap the battery or the charger.

Frequent shutdowns

  • A common phenomenon faced by many people. The screen shuts down randomly.
  • Experts believe that power fluctuations may be one of the main reasons behind this. 
  • You should check your home’s main power supply and see that the circuit breaker does not trip frequently.
  • If so, the problem is with the main power. Another cause of the screen turning off is overheating of the device.
  • The processor may overheat due to a faulty fan or other reasons that you would need to troubleshoot.
  • You can quickly check this by touching the laptop or PC case after it shuts down.
  • If it feels scalding, the internal components are overheating, and the screen automatically shuts down to prevent further damage.
  • If you do not know how to repair your TV screen, the idea is to leave a message or call the company’s customer service to which your TV belongs.
  • Usually, this service is free of charge. In case you need it for a laptop, you should contact Laptop Tech Support.

What Causes White Spots or Dots on TV Screen: FAQs

What are white dots on my TV screen?

White dots or spots on the screen may result from a faulty or damaged processor or overheating during the summer or colder temperatures during the winter. Otherwise, TVs can be affected by power surges or spikes, as electricity supplies vary throughout the year.

What causes white spots on the LCD screen?

Flashing white dots on tv screen appear to result from faulty reflectors inside the LCD panel. This can cause 3 dots on the TV screen. Bright spots can result from stuck pixels on the screen. A dead pixel is usually black, while stuck pixels can be white or any other colour.

Do dead pixels go away?

The dead cell is permanently damaged. No, it doesn’t disappear with time.

Why do I have white dots on my TV screen?

The white dot on the flat screen of your LED TV is due to a fallen reflector. Above each LED in your TV’s LED array is the reflector. If it falls out of place, the light points directly to a single spot.

How do I fix a white spot on my LCD TV?

To fix this problem, the reflectors must be repositioned and repositioned using five-quick glue or equivalent. The number of Bright Spots corresponds to the number of fallen reflectors.

How do I fix black spots on my screen?

Stuck pixels are dead pixels that appear on the flat TV screen as stationary black spot or white or red bright spot issue. You can remove them by gently massaging the area around the stuck pixel with a soft cloth. This method allows the pixel to reorient itself and regain colour.

Can I fix the technical white spots on my Sony TV?

  • To partially fix the white spots on Sony led TV screen, you should follow the steps below:
  • Reduce the backlight level in the Picture Setup menu.
  • In the image adjustments menu, set picture mode to standard.
  • Activate the Light Sensor setting in the Picture Setup menu.
  • Change the Power Save setting to Low or High in the Setup menu.

How much does it cost to fix a white spot on a TV?

The average cost for fixing a white spot on your screen is $79-$169 in the United States, and if that’s what you’re dealing with, then either call an expert or visit some local shops to get more information about this issue. There may be other solutions available, but contacting an electronics professional would also seem like the most logical step from here, so don’t hesitate!

Do dead pixels spread?

A dead pixel is a non-functional or stuck pixel, where the colour will not change when an image passes over it. Dead pixels usually don’t spread. They’re usually a minor fault in a display. If they do spread, you might need to hire a specialist or replace your screen.

Bottom Line

Now that you know what causes white spots or dots on your TV screen, you are in a better position to judge the damage and ways to repair it. No one wants to be in this situation, but you should not panic if the LCD screen shows any problems.

Nowadays, the Internet has made us masters in every field thanks to the guides and tutorials available. Repairing LCD screen pressure marks is no longer something to be afraid of.

However, always make sure that all research has taken place before opening the screen. LCD screens are delicate devices, and you don’t want to damage them further while reducing the above problems. Hope you have learned what causes white spots or dots on a TV screen.

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