The ornamental design for a displaydevicestand, as shown and described.
FIG. 1 is a perspective view of a display device stand, showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a side view thereof;
FIG. 5 is another side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a rear perspective view thereof; and,
FIG. 9 is another perspective view thereof as shown in a display panel environment.
The broken lines in FIGS. 1-8 show portions of the display device stand which form no part of the claimed design. The broken line showing of the monitor in FIG. 9 is for environmental purposes only and forms no part of the claimed design.
The shade lines in the figures show contour and not surface ornamentation.