The ornamental design for a tradingcarddisplayframe, as shown and described.
FIG. 1 is a perspective view of the trading card display frame of the present design;
FIG. 2 is a top plan view of the trading card display frame of the present design;
FIG. 3 is a bottom plan view of the trading card display frame of the present design;
FIG. 4 is a left side elevation view of the trading card display frame of the present design;
FIG. 5 is a right side elevation view of the trading card display frame of the present design;
FIG. 6 is a first end elevation view of the trading card display frame of the present design;
FIG. 7 is an opposite end elevation view of the trading card display frame of the present design; and,
FIG. 8 is a perspective view of the trading card display frame of the present design showing environment with a trading card (shown in broken lines) installed in the frame.
In the drawings, the broken lines illustrate environment and form no part of the claimed design.