Laptop screen glare is one of the most annoying problems faced by users. They appear as light spots, stripes or uneven illumination, especially noticeable against a dark background. In some cases, the defect is barely noticeable, but sometimes it makes working on the device simply unbearable. The reasons for the appearance of glare can be either software (incorrect display settings) or hardware (damage to the matrix or cable).

It is important to understand that not all highlights are created equal. For example, yellow spots often associated with backlight burnout, and white streaks around the edges - with damage to the matrix or poor contact of the cable. In this article, we will figure out how to diagnose the problem, what methods will help fix it at home, and in which cases you cannot do without contacting a service center. Some solutions will only take a couple of minutes, others will require more time and care.

What are flares and why do they appear?

Glare is an uneven distribution of screen backlight, which appears as light areas on a dark or black background. Most often, the problem is noticeable when watching movies, working with graphic editors, or simply on a desktop with a dark theme. The reasons may be different, but they are roughly divided into two categories:

  • 🔧 Hardware — physical damage to the matrix, wear of the backlight, problems with the cable or inverter.
  • ⚙️ Software — incorrect settings for brightness, contrast, color profile or video card drivers.

Among the most common reasons:

  • 💡 LED backlight burnout — over time, the diodes lose their brightness, and some of them begin to shine brighter than others.
  • 🖥️ Damage to the matrix — impacts, falls or strong pressure on the screen can lead to internal microcracks.
  • 🔌 Poor contact of the cable — if the cable connecting the matrix to the motherboard comes loose or is damaged, the backlight does not work correctly.
  • 🎨 Incorrect driver settings - sometimes flashes appear after updating video drivers or changing the OS.

Interestingly, on laptops with IPS matrices flares occur more often than on VA or TN, due to the nature of the technology. However OLED screens are practically not subject to this problem, since they do not have traditional backlighting - each pixel glows independently.

📊 How long have you been having glare on your laptop?
  • Less than a month
  • 1-6 months
  • More than six months
  • I don't remember

How to diagnose glare: tests and signs

Before you try to eliminate highlights, you need to make sure that the problem really exists and is not an image artifact. There are several simple tests for this:

  1. Checking on a black screen. Open any black background (for example, a full-screen image or document with a black background). If highlights are visible, there is a hardware problem.
  2. Backlight uniformity test. Use special services like Lagom LCD Test, where there are pages with gray gradients.
  3. Checking from different angles. Tilt the screen back and forth - if the light changes intensity, there may be a problem with the cable.

Also pay attention to the nature of the highlights:

Type of highlights Possible reason Can I fix it myself?
White spots around the edges Poor cable contact or diffuser damage Yes (loop reconnection)
Yellow stains LED backlight burnout No (backlight replacement required)
Light stripes all over the screen Problems with the inverter or matrix Partially (driver setup)
Lights only in one corner Local matrix damage No (matrix replacement)

If the glare appears only when running on battery power, but disappears when connected to the network, the problem may be with the power saving settings or a battery failure.

⚠️ Attention: Don't confuse highlights with dead pixels! Dead pixels are colored dots (red, green, blue) that do not change color. Highlights appear as light areas on a dark background.

Software methods for removing glare

If the problem is not related to physical damage to the matrix, try software methods first. They do not require disassembling the laptop and often help reduce the appearance of glare.

1. Adjusting brightness and contrast

Sometimes the highlights become less noticeable when you change the screen settings:

  • 🌓 Reduce brightness to 70-80% (in Control Panel → Power Options → Adjust Screen Brightness).
  • 🎚️ Increase the contrast in the video card driver settings (for example, in NVIDIA Control Panel or AMD Radeon Settings).
  • 🖼️ Use dark themes in Windows/macOS and browser.

2. Update or rollback drivers

If flashing appears after updating the system or drivers, try:

  • 🔄 Roll back the video card driver (Device Manager → Video adapters → Properties → Rollback).
  • 🆙 Install the latest driver from the manufacturer’s website (NVIDIA, AMD, Intel).
  • 🔧 Manually adjust the color profile via Control Panel → Color Management.

Reduce screen brightness to 70%

Update video card driver

Check power saving settings

Disable automatic brightness adjustment-->

3. Screen calibration

Windows and macOS have built-in color calibration tools:

  • 🪛 On Windows: Settings → System → Display → Advanced display options → Color calibration.
  • 🍎 On Mac: System Preferences → Monitors → Color → Calibrate.

Follow the instructions in the calibration wizard, paying special attention to adjusting gamma and white balance.

⚠️ Attention: If after calibration the colors become unnatural, reset the profile to factory settings. On Windows this can be done in Color Management → Devices → Reset Settings.

Hardware methods: what you can do yourself

If software methods do not help, you will have to resort to more radical measures. Some of them can be done at home, but accuracy and basic skills in working with equipment are required.

1. Reconnecting the matrix cable

A common cause of glare is poor contact of the cable connecting the matrix to the motherboard. To reconnect it:

  1. Turn off the laptop and disconnect the battery (if it is removable).
  2. Remove the screen frame by carefully prying it off with a plastic spatula (on YouTube There are disassemblies for specific models, for example, Lenovo ThinkPad or HP Pavilion).
  3. Find the cable (usually located at the bottom of the matrix) and disconnect it, and then connect it back.
  4. Assemble the laptop and check the result.

Important: The trains are very fragile! Do not pull the wires, but carefully lift them by the plastic connector. If the cable is damaged, it will have to be replaced.

What does the matrix cable look like?

A cable is a thin flexible tape with contacts that connects the matrix to the motherboard. It is usually black or orange, 1-2 cm wide. It has connectors at the ends that are secured with latches. When disassembling a laptop, the cable can be glued to the frame or covered with a metal plate.

2. Replacing thermal paste on the video card (for discrete graphics)

Overheating of the video card sometimes leads to artifacts that can be confused with glare. If you have a laptop with NVIDIA or AMD Radeon, try:

  • 🌡️ Check GPU temperature using HWMonitor or MSI Afterburner.
  • 🔧 If the temperature exceeds 90°C, clean the cooler and replace the thermal paste.

3. Checking the backlight inverter

The inverter is the board that controls the screen backlight. If it fails, glare or flickering may occur. In most modern laptops, the inverter is built into the matrix, but in older models (for example, Dell Inspiron or Acer Aspire until 2015) it can be replaced separately.

Signs of inverter malfunction:

  • 💡 The screen flashes when the brightness changes.
  • 🔦 Highlights appear only at a certain brightness.
  • 🔌 The laptop does not turn on without being connected to the network (the inverter may be connected to the power circuit).
💡

If you are not confident in your skills, it is better to contact the service. Replacing an inverter or cable requires experience, as there is a risk of damaging the matrix or other components.

When you can’t do without a service center

Unfortunately, not all glare can be eliminated at home. In some cases, professional diagnosis or component replacement will be required. Contact the service if:

  • 💥 The glare appeared after the laptop was dropped or hit (the matrix was probably damaged).
  • 🔧 Reconnecting the cable on my own did not produce results.
  • 💡 The backlight flickers or turns off completely.
  • 🖥️ Highlights are accompanied by other artifacts (stripes, image distortions).

The cost of repair depends on the laptop model and the nature of the breakdown:

Type of repair Average cost (RUB) Repair time
Replacing the matrix cable 1 500 — 3 000 1-2 hours
Replacing LED backlight 4 000 — 8 000 2-3 days
Replacing the entire matrix 8 000 — 20 000 1-2 days
Inverter repair 2 000 — 5 000 1 day

Before taking your laptop for repair, check:

  • 🔍 Does the service have original spare parts for your model (for example, a matrix for ASUS ROG Strix may differ from the matrix for ASUS Vivobook).
  • 📋 Do they provide a guarantee for the work (usually 3-6 months).
  • 💰 Is free diagnostics possible?
💡

If the laptop is under warranty, do not disassemble it yourself! This will void the manufacturer's warranty.

Preventing glare: how to extend the life of your screen

It is impossible to completely avoid glare, especially on laptops with IPS matrices, but you can slow down their appearance. Here are some tips:

  • 🌞 Do not use the laptop in direct sunlight - overheating accelerates the backlight burnout.
  • 💻 Avoid placing strong pressure on the screen (for example, do not place heavy objects on the keyboard when closed).
  • 🔋 Do not allow the battery to be completely discharged - this may affect the stability of the matrix power supply.
  • 🔄 Update your video card drivers regularly, but do not install beta versions.
  • 🧹 Clean the screen with a soft, lint-free cloth without using aggressive detergents.

It is also worth paying attention to the energy saving settings:

  • Disable the feature Adaptive brightness control in Windows settings, as it may cause unstable backlighting.
  • B Control Panel → Power Options → Advanced Settings Set the minimum screen brightness to at least 30%.

If you frequently work with graphics or watch movies, consider purchasing a laptop with OLED screen (For example, Dell XPS 13 OLED or ASUS ZenBook Pro Duo OLED). Such matrices do not have traditional backlighting, so glare on them is practically excluded.

Frequently asked questions about glare on laptops

Can glare appear due to viruses?

No, flashing is a hardware or software problem and is not related to viruses. However, malware can change the brightness or color profile settings, making screen imperfections more visible. Run an antivirus scan (for example, Kaspersky or Dr.Web CureIt) and reset your screen settings.

Does a factory reset of Windows help remove glare?

A factory reset may help if the flashing is caused by a software glitch (such as incorrect drivers or settings). However, if the problem is hardware (damage to the matrix, cable), resetting will not work. Save important data before resetting!

Is it possible to remove highlights using a magnet?

No, it's a myth! Magnets do not affect glare, but can damage the hard drive (if it is HDD) or matrix (in rare cases). Don't experiment with magnets - this will only make the problem worse.

Why are highlights visible only on a dark background?

Highlights are noticeable against a dark background because the screen backlight shines unevenly. In bright images, this defect is masked by the general light of the matrix. This is especially true for IPS panels, where the backlight is located behind the liquid crystal layer.

Is it worth buying a laptop with glare if it is cheaper?

If the highlights are not critical (barely noticeable on a black background), and the laptop is sold at a large discount, the purchase may be justified. However, keep in mind that the defect may worsen over time. Before purchasing, check the screen for uniform backlighting and check whether the problem is caused by a fall or impact.