A monitor that turns off the backlight as soon as something is dark will lose detail in the surrounding shadows (and similarly, a monitor that turns the backlight on to the max for bright objects will create too much blooming).
Aggressiveness: Another trade-off here.Local dimming that responds too quickly to movement will make blooming more apparent, but a monitor that is too slow will darken bright objects that are in motion. Responsiveness: There is a trade-off here.Sizes of the zones: The smaller, the better.
We consider performance from the video test from above, but also how well the monitor's dimming performs with regular video and still images. Our local dimming score is based on the subjective impression we get from enabling dimming on a monitor.
