The ornamental design for a flat paneldisplay, as shown and described.
FIG. 1 is a perspective view of a flat panel display showing our new 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 view thereof.
FIG. 7 is a bottom view thereof.
FIG. 8 is an enlarged view of an indicated portion of FIG. 2.
FIG. 9 is an enlarged view of another indicated portion of FIG. 2; and,
FIG. 10 is an enlarged view of an indicated portion of FIG. 4.
The enlarged views show additional surface shading that is not shown in the other views for ease of illustration. The broken lines shown in the drawing disclosure illustrate unclaimed portions of the flat panel display and form no part of the claimed design.