The ornamental design for a displaydevice, as shown and described.
FIG. 1 is a front elevational view of a display device embodying the inventive design.
FIG. 2 is a rear elevational view thereof.
FIG. 3 is a left-side elevational view thereof.
FIG. 4 is a right-side elevational view thereof.
FIG. 5 is a perspective view thereof.
FIG. 6 is a top plan view thereof.
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a perspective view of the display device shown in an alternative position.
The dash-dot chain lines indicate the boundary of the claimed design. The dashed lines are directed to the environment of the claimed design and are for illustrative purposes only. The dash-dot chain lines and dashed lines form no part of the claimed design.