FIG. 1 is a perspective view of the display panel with graphic user interface showing our 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; and,

FIG. 8 is an enlarged view of a portion of the image of FIG. 2.

The broken line showing of a display panel is included for the purpose of illustrating portions of the article and forms no part of the claimed design. --