Color LED display device without color separation

A color LED display device without color separation, comprising:

• a substrate, having a plurality of conductive circuits laid thereon;
• a plurality of display units, arranged in form of an array on the substrate, and coupled to the plurality of conductive circuits, and each display unit comprising:
• a driving chip;
• at least one red-light LED chip, coupled to the driving chip for emitting a red light;
• at least one green-light LED chip, coupled to the driving chip for emitting a green light;
• at least one blue-light LED chip, coupled to the driving chip for emitting a blue light;
• and
• a micro optical device assembly, installed above the red-light LED chip, the green-light LED chip and the blue-light LED chip;
• wherein the micro optical device assembly is a bi-convex lens;
• a power supply unit, coupled to the substrate, for supplying a power source to the plurality of display units;
• a control unit, coupled to substrate, for controlling the plurality of display units to emit light;
• and
• a directional optical device assembly, installed above the plurality of display units;
• thereby, when the control unit controls the display unit to emit light, the red-light LED chip, the green-light LED chip and the blue-light LED chip emit red light, green light and blue light simultaneously, and the red light, the green light and the blue light pass through the micro optical device assembly and change their light paths, and the red light, the green light and the blue light are combined on a two-dimensional plane and emitted from the directional optical device assembly to the outside, and the red light, the green light and the blue light emitted from the directional optical device assembly produce an effect of a 3D image to naked eyes.