The invention relates to a Micro-LED (Micro-
light emitting diode) array backlight source-based ink-jet printing
quantum dot
display device, which comprises a Micro-LED substrate, wherein a plurality of RGB (red, green and blue) pixel units arranged in an array are arranged on the Micro-LED substrate; each RGB pixel unit comprises a red
quantum dot unit, a green
quantum dot unit and a transparent unit; each red
quantum dot unit comprises a Micro-LED
chip and a red
quantum dot material, and the red
quantum dot material is excited by
blue light emitted by the Micro-LED
chip to emit
red light; each green quantum dot unit comprises a Micro-LED
chip and a green quantum dot material, and the green quantum dot material is excited by
blue light emitted by the Micro-LED chip to emit
green light; each transparent unit comprises a Micro-LED chip and a transparent material, and the transparent material is used for directly transmitting
blue light emitted by the Micro-LED chip; a transparent material for packaging is arranged outside the RGB pixel units. According to the device, an ink-jet printing technology is adopted for film forming of quantum dots, so that the problems of complexity and low yield of an RGB tri-color process for manufacturing a Micro-LED full-color product are solved, and
batch operation is realized.