IPS glow looks like a soft, silvery or pale yellowish wash that appears in the corners or along the edges of your screen when you view dark content in a dim room. Unlike backlight bleed, which stays bright and fixed in the same spot no matter where you sit, IPS glow shifts and fades as you move your head, lean back, or change your viewing angle. You will notice it most on a black loading screen or when watching letterboxed video, where the corners seem to float above the image.
This is not an emergency that will damage your panel, and a small amount of glow is normal for all IPS displays due to how the liquid crystal layer scatters light off-angle. You do not need to power off the monitor or stop using it. However, if the glow covers a large area, makes dark games unplayable, or is uneven from one corner to another, it is worth working through the adjustments below before considering a return or replacement. The fixes are non-invasive and reversible, and most users see a clear improvement without opening the monitor.
Likely Causes
| Cause | How to confirm | Fix difficulty |
|---|---|---|
| Excessive backlight brightness in dark room | Glow intensifies in dark room and lessens when brightness is lowered from 90 to 30 | Easy |
| Off-angle viewing position | Glow moves or disappears when you center your eyes to the screen and lean back 24 to 30 inches | Easy |
| Aggressive contrast and black equalizer settings | OSD shows Black Stabilizer, Shadow Boost, or Dynamic Contrast set to High or On | Easy |
| Incorrect gamma or video range mismatch | NVIDIA Control Panel or AMD Software shows Limited vs Full range mismatch, or gamma is set far from 2.2 | Moderate |
| Physical pressure from stand, mount, or bezel | Glow is stronger in one corner and changes slightly when you gently flex the bezel or loosen VESA screws | Moderate |
| Panel variance and manufacturing tolerance | Even after calibration and positioning, glow remains identical in shape and location at all brightness levels | Hard |
Fix 1: Correct Your Viewing Position and Room Lighting
What causes it
IPS glow is an off-angle optical effect. When your eyes are too close, too low, or off to one side, light from the backlight scatters through the IPS layer and reaches your eyes at an angle, which makes corners look washed out. Viewing in a completely dark room makes the effect far more obvious because your pupils adapt to the black background.
How to check
Display a full black image. You can do this by opening Paint, filling the canvas with black, and pressing F11 for fullscreen, or by searching for a YouTube black screen test. Sit in your normal position and slowly move your head left, right, up, and down, then lean back to about an arm’s length. If the glowing patches move or fade as you move, it is classic IPS glow tied to angle and ambient light.
What to do
Center the monitor so your eyes are level with the middle of the screen. Adjust the stand height so the top bezel is at or slightly above eye level and tilt the panel so it is perpendicular to your line of sight, usually 0 to 10 degrees back. Increase ambient light with a soft desk lamp behind or beside the monitor rather than using the monitor as the only light source in the room. Keep viewing distance at 24 to 32 inches for a 27-inch display.
How to undo it
Return the stand to its previous height and tilt, and turn off the room light. No settings were changed, so there is nothing to reset in software.
Fix 2: Lower Brightness and Turn Off Auto Brightness
What causes it
Running the backlight at 80 to 100 out of 100 in a dark room overdrives the light that leaks at an angle, which exaggerates glow. Many monitors also ship with energy-saving or auto-brightness features that push brightness back up after you lower it.
How to check
Open the On-Screen Display using the joystick or buttons under the bezel. Navigate to Menu > Picture > Brightness and note the value. Then check Menu > General > Energy Saving or Menu > Picture > Auto Brightness and see if it is set to On, Low, or High. If brightness is above 60 in a dim room, it is a likely contributor.
What to do
In the OSD, set Brightness to 35 to 50 for night use and 60 to 75 for daytime use. Set Contrast to 65 to 75. Set Energy Saving to Off and Auto Brightness or Ambient Light Sensor to Off. On monitors with a Picture Mode, switch from Vivid or HDR Effect to Custom, Standard, or sRGB. If your monitor has a dedicated HDR mode, turn HDR Off in Windows at Settings > System > Display > HDR when you are testing SDR glow, because HDR locks brightness to maximum.
How to undo it
Reopen Menu > Picture > Brightness and restore your original value. Set Energy Saving and Auto Brightness back to On if you prefer the power saving behavior.
Fix 3: Reset Contrast Enhancers and Black Stabilizer Settings
What causes it
Features like Black Stabilizer, Shadow Control, Dynamic Contrast, and Black Equalizer lift near-black shadows to help you see enemies in dark games. That lifting also raises the black floor and makes glow more visible, especially in the corners.
How to check
In the OSD, go to Menu > Picture > Game Adjust or Menu > Picture > Gaming. Look for entries named Black Stabilizer, Shadow Boost, Dark Stabilizer, or Dynamic Contrast. If Black Stabilizer is at 70 to 100 or Dynamic Contrast is set to On, the monitor is actively brightening dark tones.
What to do
Set Black Stabilizer or Shadow Boost to 40 to 50, which is the neutral midpoint on LG, Dell, and Gigabyte models, or set it to Off if the menu allows. Set Dynamic Contrast to Off. Set Super Resolution, Sharpness, and Uniformity Compensation to Off for testing, as Uniformity Compensation can sometimes add a faint haze. Press the OSD joystick to Exit and recheck a black screen.
How to undo it
Return to Menu > Picture > Game Adjust and set Black Stabilizer and Dynamic Contrast back to their previous values. For competitive shooters you can raise Black Stabilizer again to 60 to 70.
Fix 4: Fix Gamma and Color Range in Your GPU Driver
What causes it
A mismatch between Limited (16-235) and Full (0-255) RGB range, or a gamma that is set too low, crushes or lifts blacks and makes glow look worse than it is. This often happens after connecting via HDMI or after installing a new graphics driver.
How to check
On NVIDIA, right-click the desktop and open NVIDIA Control Panel > Display > Change resolution. Scroll to Apply the following settings and note whether Output dynamic range is set to Full or Limited and whether Output color format is RGB or YCbCr. On AMD, open AMD Software: Adrenalin Edition > Display > Color Depth and Pixel Format. Then check Windows at Settings > System > Display > Advanced display to confirm bit depth and refresh rate. If RGB is set to Limited on the GPU while the monitor expects Full, blacks will look gray.
What to do
Set Output color format to RGB and Output dynamic range to Full on both the GPU driver and the monitor. On the monitor, find Menu > Input or Menu > Picture > HDMI Range and set it to Full or High. In NVIDIA Control Panel > Adjust desktop color settings, set Gamma to +0.00 and Digital vibrance to 50 percent, then use the slider to set Gamma to 2.2 if needed. In Windows Calibration, press Windows + R, type dccw.exe, and follow the Gamma adjustment page until the middle dots are barely visible. Keep brightness at the OSD level you set in Fix 2.
How to undo it
In NVIDIA Control Panel, click Restore defaults under Adjust desktop color settings. In AMD Software, click Reset under Display > Color. In Windows, rerun dccw.exe and select Reset to default or click Cancel before saving the ICC profile. The calibration file is saved at C:\Windows\System32\spool\drivers\color, you can delete the new profile there if needed.
Fix 5: Relieve Physical Pressure on the Panel and Bezel
What causes it
Uneven pressure from an overtightened VESA mount, a twisted stand neck, or a tight bezel can create localized pressure spots that look like glow but do not move with viewing angle. This is often mistaken for IPS glow when it is actually pressure-induced bleed that can be reduced.
How to check
Power off the monitor and look at the rear VESA screws and the stand attachment. If you use a monitor arm, check that the four M4 screws are not bottoming out or pulling the chassis. With a black image on screen, gently and evenly press around the very edge of the bezel with your fingertips without pressing the screen itself. If the bright patch changes shape when you ease pressure near that corner, physical tension is involved.
What to do
Power off and disconnect the display. If wall or arm mounted, loosen each VESA screw by a quarter turn and ensure you are using the correct length screws with spacers if the mount kit included them. If on the original stand, remove the monitor from the stand neck by pressing the quick-release button, reseat it squarely, and tighten the thumb screw until snug, not forced. Place the monitor on a flat surface and ensure the bezel is not wedged against a wall. Power on and recheck from your centered position.
How to undo it
Retighten the VESA screws to their previous tightness and reattach the stand as before. No software changes are involved, so simply restoring the mechanical setup returns it to the prior state.
Fix 6: Add Bias Lighting to Raise Perceived Black Level
What causes it
In a pitch-black room, your eyes become highly sensitive to any light coming from the panel, which makes even mild glow appear intense. Bias lighting raises the ambient level behind the display, which lowers eye strain and makes blacks look deeper by comparison without changing the panel itself.
How to check
Turn off all room lights and display a letterboxed movie or a game with dark scenes. Note how strong the corner glow appears. Now turn on a neutral white lamp behind the monitor. If the glow becomes far less noticeable with ambient light on, bias lighting will help you.
What to do
Attach a 6500K white LED light strip to the back of the monitor, 1 to 2 inches from the edge, facing the wall for a soft halo. Power it from the monitor USB port at 5V so it turns on with the display, or use its inline switch. Aim for a faint glow on the wall, not a bright spotlight. Keep the wall color neutral white or light gray if possible, and keep the bias light on whenever you use the monitor in the dark.
How to undo it
Unplug the USB power or peel off the strip if it is adhesive. Clean any residue with isopropyl alcohol on a microfiber cloth. No monitor settings need to be changed.
Fix 7: Perform a Factory Reset and Verify with a Clean Test
What causes it
Layered OSD tweaks, color profiles, and driver settings can interact in ways that are hard to track. A factory reset gives you a known baseline to judge whether glow is within normal limits or a defect.
How to check
In the OSD, go to Menu > General > Reset or Menu > Settings > Reset and note that many values have been changed from defaults. In Windows, go to Settings > System > Display > Advanced display > Display adapter properties > Color Management > Advanced and see if a custom ICC profile is assigned.
What to do
In the OSD, select Menu > General > Reset to Initial Settings or Factory Reset and confirm Yes. After reboot, set Picture Mode to Custom or sRGB, Brightness to 45, Contrast to 70, Color Temperature to Custom with Red 50 Green 50 Blue 50, and Gamma to Mode 2 or 2.2 if listed. In Windows Color Management, select the sRGB IEC61966-2.1 profile and check Use my settings for this device, then click Reset My Settings. Test again with a fullscreen black image at your centered viewing position with mild ambient light. Take a photo from straight on at 30 inches with auto exposure locked to document the baseline, which is useful if you contact support.
How to undo it
Reapply your preferred Picture Mode and any ICC profile you saved. If you exported a profile earlier, reload it in Color Management > Browse and set it as Default. Otherwise, rerun dccw.exe to recalibrate.
If Nothing Works
If glow remains strong, uneven, and fixed in one corner after you have centered your position, lowered brightness, disabled enhancers, matched Full range on both GPU and monitor, and relieved mounting pressure, you may be seeing panel variance or a defect rather than normal IPS glow. At this point, test the monitor on a different PC or with a different cable, such as DisplayPort 1.4 instead of HDMI, to rule out a source issue, and try it in another room to rule out wall reflections.
Document the issue with photos taken straight on and at 45 degrees, both with brightness at 45 and at 80, and note the model, serial number from Menu > General > Information, and purchase date. If the unit is within the retailer return window, request an exchange and compare a second unit under the same conditions. If it is outside that window but within warranty, contact the manufacturer support channel listed in the manual and provide the photos. As of early 2026, most brands still consider a small, angle-dependent glow normal, but a bright, fixed bleed that is visible in daylight from a centered position is typically grounds for warranty review. If replacement is not an option, keep bias lighting installed and use the calibrated settings from Fix 7, which most users find acceptable for mixed gaming and productivity.
FAQ
Is IPS glow the same as backlight bleed?
No. IPS glow shifts and fades as you move your head and is visible mainly at an angle on dark screens, while backlight bleed stays in the same spot with the same intensity regardless of viewing angle. To tell them apart, display a black screen and move side to side. If the patch moves, it is glow. If it stays anchored to the same corner, it is bleed or pressure.
Will lowering brightness or contrast damage color accuracy?
Lowering brightness from 90 to the 35 to 75 range does not harm the panel and usually improves black depth in a dim room. Keep contrast near 70 and set gamma to 2.2 to maintain accurate midtones. If you need color-critical work, switch the OSD Picture Mode to sRGB and calibrate with dccw.exe or your colorimeter after you adjust brightness.
Does changing the response time or refresh rate affect glow?
No. Settings like Response Time, Overdrive, Motion Blur Reduction, and refresh rate from 60Hz to 165Hz affect pixel transitions and motion clarity, not the angle-dependent scatter that causes glow. You can leave Overdrive at Normal or Fast and refresh rate at your preferred value while testing glow.
Should I press or massage the screen to fix glow?
Do not press the LCD surface itself, as that can create permanent pressure marks. Only apply very light, even pressure to the plastic bezel edge as a diagnostic check, and relieve mount tension as described in Fix 5. If you need to clean the panel, use a dry microfiber cloth with no liquid on the screen, and power off the monitor first.
