The ornamental design for a displaydevice, as substantially shown and described.
FIG. 1 is a bottom, front, left side perspective view of a display device showing my new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a rear elevation view thereof;
FIG. 8 is a front elevation view thereof, showing the top portion of the display device in an alternate position; and,
FIG. 9 is a front elevation view thereof showing the top portion of the display device in another alternate position.
The upper portion of the display device, shown in alternate position in FIGS. 8 & 9, swings back and forth projecting an illuminated alphanumeric message.
The broken lines in the drawings illustrate the portions of the design that form no part of the claim.