Backlight Bleed & IPS Glow Test
100% True Black Active
Dim room lights, enter Fullscreen, and drag the white box to test local dimming zones and distinguish IPS glow from edge bleed.
How to Tell Backlight Bleed Apart from IPS Glow
When you purchase a new gaming monitor or professional creator display, evaluating black screen uniformity helps determine if you should request a replacement under warranty.
Backlight Bleed (Defect)
- • Caused by physical gaps or pressure pinching the LCD panel.
- • Located mostly on monitor edges and frame seams.
- • Does NOT change position or intensity when you move your head.
- • Often qualifies for RMA / Warranty exchange if severe.
IPS Glow (Normal Behavior)
- • Inherent optical characteristic of wide-viewing-angle IPS crystals.
- • Manifests as a faint glow in 4 corners.
- • Changes and fades as you step back or change your viewing angle.
- • Standard on all IPS panels and not considered a defect.
Everything You Need to Know
Common questions about screen utilities, color temperature, dead pixels, and monitor care.
What is backlight bleed vs IPS glow?
Backlight bleed is a hardware defect where light from the monitor's LED backlight leaks around the edges or corners of the panel. It stays visible at the exact same location regardless of your viewing angle. IPS glow is an inherent optical characteristic of IPS panels where a faint golden or silvery sheen appears in corners when viewed from an angle and shifts as your perspective changes.
How do I perform a backlight bleed test?
Turn off room lights so your surroundings are dark. Set your monitor brightness to your normal working level (usually 50%–70%). Enter fullscreen on this 100% black screen and inspect the perimeter and corners for bright white/yellow light patches.
Do OLED screens suffer from backlight bleed?
No. OLED and QD-OLED panels feature self-emissive pixels that completely turn off when displaying black (#000000), producing true infinite contrast with zero backlight bleed or IPS glow.
Can backlight bleed be fixed without replacing the monitor?
Mild backlight bleed caused by tight bezel screws can sometimes be alleviated by gently loosening bezel pressure or gently massaging the panel edges with a microfiber cloth. Severe light leakage usually requires an RMA replacement.