FIG. 1 is a first frontal perspective view of the backlit graphic display device;

FIG. 2 is a front plan view of the backlit graphic display device;

FIG. 3 is a back plan view of the backlit graphic display device;

FIG. 4 is a first lateral edge of the backlit graphic display device;

FIG. 5 is a second lateral edge of the backlit graphic display device;

FIG. 6 is a first end view of the backlit graphic display device, rotated 90° counter clockwise;

FIG. 7 is a second end view of the backlit graphic display device, rotated 90° counter clockwise; and,

FIG. 8 is a second frontal perspective view of the backlit graphic display device shown in a condition of use.

The broken lines showing the window in FIG. 8 represent the environment and form no part of the claimed design. All other broken lines in the drawing views are included for the purpose of illustrating portions of the backlit graphic display device that form no part of the claimed design.