Backlight bleed problems manifest themselves in different ways on monitors and TVs.

Both LCD and LED displays use backlighting, either via liquid crystals or light-emitting diodes. However, emissive OLED and MicroLED displays do not use a backlight, so you will not experience backlight bleed with these two display types.

Backlight bleeding occurs when the layers that make up a monitor or TV screen become misaligned. When this happens, pressure builds up inside the screen, changing the alignment of the components that emit light. This misalignment sends the light in the wrong direction, leading to backlight bleeding.

This problem is more common with cheaper displays, where the quality of the screen and the individual layers is not as good as with more expensive displays.