The ornamental design for a smartphone, e-reader, tablet, or portable media playerdisplaystand, as shown and described.
FIG. 1 is a front view of the display stand;
FIG. 2 is a back view of the display stand;
FIG. 3 is a side view of the display stand;
FIG. 4 is a top view of the display stand; and,
FIG. 5 is a bottom view of the display stand.
The areas within the dashed lines shown in FIG. 1, FIG. 2, FIG. 3, and FIG. 4 are for illustrative purposes only and form no part of the claimed design. Each display stand may have additional elements in this area.
The phantom lines shown in FIG. 1 are for illustrative purposes only, and form no part of the claimed design.