Raise the bottom edge of the LCD assembly slightly, then slide it down slightly to free its upper edge from a slight overhang in the rear display bezel.

Lift it out of the rear display bezel, minding any cables that may get caught.

When reinstalling the LCD assembly back into the rear display bezel, before you tighten down any of its frame mounting screws, make sure the short brass posts, one each on the left and right sides of the bezel, fit into their corresponding holes in the LCD assembly frame.