Display screen or portion thereof with transitional graphical user interface

Description

FIG. 1 is a front view of a first embodiment of a display device or portion thereof with transitional graphical user interface showing a first image in a sequence, showing our new design;

FIG. 2 is a front view showing a second image thereof;

FIG. 3 is a front view of a second embodiment of a display device or portion thereof with transitional graphical user interface showing a first image in a sequence, showing our new design;

FIG. 4 is a front view showing a second image thereof;

FIG. 5 is a front view of a third embodiment of a display device or portion thereof with transitional graphical user interface showing a first image in a sequence, showing our new design;

FIG. 6 is a front view showing a second image thereof;

FIG. 7 is a front view showing a third image thereof;

FIG. 8 is a front view of a fourth embodiment of a display device or portion thereof with transitional graphical user interface showing a first image in a sequence, showing our new design;

FIG. 9 is a front view showing a second image thereof;

FIG. 10 is a front view showing a third image thereof;

FIG. 11 is a front view of a fifth embodiment of a display device or portion thereof with transitional graphical user interface showing a first image in a sequence, showing our new design;

FIG. 12 is a front view showing a second image thereof; and,

FIG. 13 is a front view showing a third image thereof.

The appearance of the transitional graphical user interface sequentially transitions between the images shown in FIGS. 1-2, 3-4, 5-7, 8-10 or FIGS. 11-13.

The process or period in which one image transitions to another image forms no part of the claimed design.

The outermost pair of broken lines showing a display screen or portion thereof remaining broken lines showing elements of the graphical user interface illustrate portions of the article that form no part of the claimed design.

Claims

The ornamental design for a display screen or portion thereof with transitional graphical user interface, as shown and described.