FIG. 1 is a perspective view of the digital display device.

FIG. 2 is a front elevational view.

FIG. 3 is a right side elevational view

FIG. 4 is a rear elevational view.

FIG. 5 is a left side elevational view of the digital display device of FIG. 1.

FIG. 6 is a top plan view; and,

FIG. 7 is a bottom plan view.

Broken lines shown in the drawings illustrate portions of the digital display device, and form no part of the claimed design.