Display panel or portion thereof with graphical user interface

[0001]This patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.

[0002]The FIGURE is a front view of a display panel or portion thereof with graphical user interface, according to the new design.

[0003]The outer dot-dash broken lines showing a display panel or portion thereof and boundaries of the claimed design form no part of the claimed design. The remaining dot-dashed line shows a boundary of the claimed design. The dashed broken lines show portions of the graphical user interface that form no part of the claimed design.