The ornamental design for a light-emitting diode array, as shown and described.
FIG. 1 is a front, right perspective view of a light-emitting diode array showing our new design;
FIG. 2 is a top, plan view of the light-emitting diode array;
FIG. 3 is a left side view of the light-emitting diode array;
FIG. 4 is a right side view of the light-emitting diode array;
FIG. 5 is a rear side view of the light-emitting diode array in an upside-down position; and,
FIG. 6 is a front side view of the light-emitting diode array.
The bottom is substantially flat and unornamented.
The broken line showing of light-emitting diode array is for the purpose of illustrating environmental structure and forms no part of the claimed design.