The ornamental design for a displaydeviceframe, as shown and described.
FIG. 1 is a perspective view of a display device frame, showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left-side view thereof;
FIG. 5 is a right-side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is another perspective view thereof showing with unclaimed display panel;
FIG. 9 is a partial enlarged view of the portion A encircled in FIG. 1;
FIG. 10 is a partial enlarged view of the portion B encircled in FIG. 1;
FIG. 11 is a partial enlarged view of the portion C encircled in FIG. 2; and,
FIG. 12 is a partial enlarged view of the portion D encircled in FIG. 3.
The broken lines are for environmental purpose only and form no part of the claimed design. The dot-dash broken lines encircling portions of the claimed design that are illustrated in enlargements form no part of the claimed design. The shade lines in the figures show contour and not surface ornamentation.