A bright spot appears on the TV screen

Manufacturing defects

Bright glow on working displays. refer to a manufacturing defect and indicate a malfunction of the matrix. The defect does not manifest itself immediately, but only after repeated heating. the geometry of the matrix layers is violated. This indicates the installation of a faulty diffuser and reflector.

Such defects may occur after the end of the warranty period. In this case, you can try to contact the manufacturer. Reputable firms, for example, Samsung, LG, are likely to meet the needs of the consumer.

bright, spot, appears, screen

There are also special programs for recovering dead pixels. They are effective if the subpixels are still “alive”.

Dust and other particles

White spots on the TV appear due to dust getting into the matrix layers. this is the result of a violation of the tightness of the layers. When the temperature fluctuates during the heating and cooling of the LCD screen, the air between the layers starts to move, sucking in dust from the outside. The photo shows which dust spots are formed after a few months of the appearance of a defect in the protection of layers around the perimeter.

Advice: dust is removed by blowing. This is done very carefully so as not to damage the matrix.

In addition to dust between the layers of the matrix, larger particles and even insects can get stuck (in exceptional cases, but this is definitely a factory defect). You can get rid of large dust and debris as follows: tap the screen with a soft cloth. So the dust particles gradually fall down, while weak traces may appear on the matrix, which immediately disappear.

In addition, dust particles can fall between the layers of the screen if you lightly tap on the edges of the TV or monitor.

Reasons for the appearance of stains

Let’s consider all the possible reasons why spots appear on LCD screens:

  • Manufacturing defects. Such defects are detected almost immediately, on the first or third day of using the device.
  • Mechanical damage. Damage to the matrix is ​​caused by strong pressure on the screen, and it also occurs after an impact. In this case, a dark spot or black appears, and cracks are possible.
  • Air penetration. Such stains occur during improper transportation of the device.
  • Penetration of water. The defect appears after improper washing of the screen with abundant moisture, as well as if a drink is spilled on a tablet, phone or dropped into water.
  • The heating. Delamination of the matrix occurs due to heating of the device.

How to fix cloud spots on LCD TV screens

The defect appears in areas that appear grayer than black in dark scenes, along with uneven brightness in normal images. Sometimes corrected by a little pressure and adjusting the TV settings.

  • Clean, soft cloth.
  • Remote control.

How to fix cloud spots on LCD TV screens

The defect appears in areas that appear grayer than black in dark scenes, along with uneven brightness in normal images. Sometimes corrected by a little pressure and adjusting the TV settings.

  • Clean, soft cloth.
  • Remote control.
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Internal settings

Access the TV menu using the remote control. Navigate to the menu areas that adjust the backlight and brightness of the screen.

Lower the backlight to the minimum acceptable level. Often times, the backlight can be turned off (or very close to this state) without noticeable degradation in image quality. This will be an exercise in getting used to the reduced brightness versus cloudy visibility. Disable any automatic settings that adjust brightness based on room lighting. Often referred to as “iris” or “smart sensor”, they disable the amount of control needed to reduce the visibility of clouds in all viewing conditions.

A glowing spot appeared on the TV screen

Spots on the screen of a TV, monitor or other LCD device often occur during the operation of electronics. Even screens from expensive companies, for example, Samsung, LG, etc., may be defective. What do black, white or dark spots mean and how to get rid of them?

Dust and other particles

White spots on the TV appear due to dust getting into the matrix layers. this is the result of a violation of the tightness of the layers. When the temperature fluctuates during the heating and cooling of the LCD screen, the air between the layers starts to move, sucking in dust from the outside. The photo shows which dust spots are formed after a few months of the appearance of a defect in the protection of layers around the perimeter.

Advice: dust is removed by blowing. This is done very carefully so as not to damage the matrix.

In addition to dust between the layers of the matrix, larger particles and even insects can get stuck (in exceptional cases, but this is definitely a factory defect). You can get rid of large dust and debris as follows: tap the screen with a soft cloth. So the dust particles gradually fall down, while weak traces may appear on the matrix, which immediately disappear.

In addition, dust particles can fall between the layers of the screen if you lightly tap on the edges of the TV or monitor.

Dark spots

A dark spot on an LCD TV or any other monitor may indicate an LED failure. The photo shows an example of such spots. this is local dimming along the edge of the screen. It is enough to replace the failed element in order to eliminate the malfunction.

If the screen has not been opened, and the warranty period has not yet expired, then a free replacement of the LEDs is possible.

Reasons for the appearance of stains

Let’s consider all the possible reasons why spots appear on LCD screens:

  • Manufacturing defects. Such defects are detected almost immediately, on the first or third day of using the device.
  • Mechanical damage. Damage to the matrix is ​​caused by strong pressure on the screen, and it also occurs after an impact. In this case, a dark spot or black appears, and cracks are possible.
  • Air penetration. Such stains occur during improper transportation of the device.
  • Penetration of water. The defect appears after improper washing of the screen with abundant moisture, as well as if a drink is spilled on a tablet, phone or dropped into water.
  • The heating. Delamination of the matrix occurs due to heating of the device.
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Tips on how to get rid of TV stains

Spots on the screen of a TV, monitor or other LCD device often occur during the operation of electronics. Even screens from expensive companies, for example, Samsung, LG, etc., may be defective. What do black, white or dark spots mean and how to get rid of them?

Flooded screen

Moisture stain looks completely different than dust stain.

A similar defect is left by alcohol, tea, coffee or just tap water. You can remove the stain by rinsing with distilled water or purified alcohol.

Important: Gloves should be used to remove stains from the screen. The room should be free of dust and drafts.

Manufacturing defects

Bright glow on working displays. refer to a manufacturing defect and indicate a malfunction of the matrix. The defect does not manifest itself immediately, but only after repeated heating. the geometry of the matrix layers is violated. This indicates the installation of a faulty diffuser and reflector.

Such a defect looks like dark spots. They first appear as small dots. these are individual pixels that die off due to violations of the screen setting technology. The spots turn black over time and increase in area. If a stain appears on the TV, then you should contact the service center, where they will carry out repairs or replace them with a working device.

Such defects may occur after the end of the warranty period. In this case, you can try to contact the manufacturer. Reputable firms, for example, Samsung, LG, are likely to meet the needs of the consumer.

There are also special programs for recovering dead pixels. They are effective if the subpixels are still “alive”.

Black spot

If a black spot appears on the TV screen, then this is a trail of impact. It can occur if the instrument is dropped. At the same time, the outlines of the spots are clear, as in the photo. In this case, the internal heating of the device occurs, which leads to breakage of the pixels adjacent to the impact site. Such a malfunction cannot be eliminated. Repair will require a complete replacement of the matrix, which will be expensive. In this case, experts recommend purchasing new electronics.

Reasons for the appearance of dark spots on the LCD TV screen

Often the spots are at first very small and almost invisible. They gradually increase in size, significantly distort the image or cover part of the broadcast image.

The main reasons that lead to the formation of dark spots are:

  • If, within a short period of time after the purchase, a dark spot appears, then this indicates a defect in production.
  • Stains are often caused by external influences. The matrix of the device is very fragile and any mechanical impact affects its integrity.
  • Air. Sometimes, air gets into the device during transportation, which leads to burnout of pixels. Very often, dead pixels start to spread across the entire screen area.
  • Moisture. In case of improper cleaning, if an excessively damp cloth is used, moisture can get into the device body and then penetrate into the matrix.
  • Temperature. The matrix does not tolerate exposure to high temperatures. If, for some time, some part of it was exposed to temperature, this led to its stratification and, as a result, the appearance of a spot.
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Dark spots on the LCD TV screen

A TV set, like any other equipment, can fail or start working incorrectly. This is not influenced by either the price or the manufacturer. Many factors can lead to the appearance of defects or failure of the device. One of these defects is dark spots on the TV screen.

How to fix dark spots on the screen

If the stain is caused by moisture ingress, then rinse the matrix. To do this, you need to take a special detergent.

REFERENCE. Regular running water is not suitable for matrix rinsing. It contains small abrasive particles of various impurities that will remain on the layers of the matrix and will be further visible.

The room where the matrix will be cleaned must be well ventilated. So you can avoid settling was on its parts. It is advisable to additionally use a humidifier. All work must be done with soft gloves.

If the matter is in the matrix itself, then its replacement is required. The surest and most reliable option is to contact a specialized workshop to a professional.

But if the user has good enough skills in the repair of electrical products and all the necessary tools and materials for this, the replacement of the faulty part can be done independently.

  • Prepare the workplace and all the tools necessary for work.
  • De-energize the device.
  • Using the required screwdriver, remove all bolts, then dismantle the housing.
  • Disconnect wires and cables carefully.
  • Unscrew the bolts and remove the defective part.
  • Put a new matrix and perform all actions in reverse order.

IMPORTANT. If the warranty period has not yet expired, it is forbidden to engage in independent repair work.!

In any case, the cost of a new part is almost equal to the cost of the TV itself. Therefore, it would be more expedient to purchase a new device.

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