Dark patch showing up on one side of my monitor

Noticed a dim, cloudy area near the bottom left. It's easiest to see on grey or white screens and it's there in the BIOS too, so it's not a driver. Is this backlight bleed, a dead zone, or pressure damage?
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1 Answer

davidr Oct 27, 2026
sara_65
Depends what it looks like. A faint cloudy glow or darker band along one edge that you mostly notice on a black screen is uneven backlighting or bleed. Common on IPS and VA panels, mostly cosmetic, and usually there from day one. A patch that looks like a shadow on bright or white content is the worrying kind. That tends to be a backlight strip on that side starting to fail, or pressure damage to the panel, and it usually spreads. Test it with a full white image and a full black one, and open the monitor's own menu over the patch. If the menu is darkened too, it's the monitor, not the PC or cable. Don't press on it to see if it changes. If it's under warranty, send it back now while it's still small.