Display Enlightment by NCX

The 27UL550 has a 45.7-303cdm/2 brightness range, and a 950:1 contrast ratio which is typical for AHVA, IPS, PLS and TN panels.  The LG is dim (45.7cdm/2) enough for use in light-less rooms at 0% brightness (0/100 in the menu), and bright (303cdm/2) enough for use in open and brightly lit rooms as long as the monitor is not being hit by direct sunlight on a bright day.  When not used in the dark the sparkly dark matte grey bezel increases the perceived black depth or contrast.