The ornamental design for a displayassembly, as shown and described.
FIG. 1 is a perspective view of a display assembly in accordance with the present invention and showing, in broken lines, a portable fireplace retained in the center cavity for illustrative purposes only and therefore forming no part of the claimed design;
FIG. 2 is a front elevation view of the display assembly of FIG. 1;
FIG. 3 is a rear elevation view of the display assembly of FIG. 1;
FIG. 4 is a top plan view of the display assembly of FIG. 1;
FIG. 5 is a bottom plan view of the display assembly of FIG. 1;
FIG. 6 is a right elevation view of the display assembly of FIG. 1; and,
FIG. 7 is a left elevation view of the display assembly of FIG. 1.