The nature of the display technology is such that the use of LEDs (light-emitting diodes) in it will result in the backlight bleeding phenomenon sooner or later. It can range from minimal to extreme ...

Backlight bleed like you describe is awful imo. A lot of 22" panels have had that problem, so swapping it out may not improve things much.

The backlighting technology used on an LCD display panel makes a surprisingly big difference to its performance, and we’re not just talking about making things brighter. The panel in question is part ...