A good display...
(1) Has a design that relates to its exhibitions without taking the attention away from the masterpieces.
The MOMA museum in New York, New York, contains almost 200,000 works of modern and contemporary art. Nonetheless, its salons have plain colors, a unified description for each piece, and lightning according to the theme; always keeping the attention of the display on the exhibits and not the surroundings by avoiding external distractions.
(2) Is made of a good showcase that describes a storytelling layout that drives the spectator and guides them through a theme.
The Museo de Botero in Bogota, Colombia has exhibited 123 pieces of art created by the master Botero himself consisting of painting, drawings, and sculptures sectioned in salons by the style and time of creation which gives the viewer an overview of his change in art techniques throughout the years.