The ornamental design for a three-dimensional display device, as shown and described.
This invention was made with government support under Contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.
FIG. 1 is an isometric view of a three-dimensional display device according to our design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is an isometric view of the three-dimensional display device shown in an alternate position;
FIG. 8 is a front elevation view thereof;
FIG. 9 is a rear elevation view thereof;
FIG. 10 is a left side elevation view thereof;
FIG. 11 is a right side elevation view thereof; and,