This application relates to a micro light-emitting device and its fabrication method. The device includes: a driving
chip; a light-emitting layer disposed on one side of the driving
chip, comprising a plurality of alternately distributed light-emitting units, the side of each light-emitting unit facing away from the driving
chip including a light-emitting area; a light-
blocking layer disposed on the side of the light-emitting layer facing away from the driving chip, comprising a plurality of alternately distributed
first light-blocking units, the area between two adjacent
first light-blocking units being a light-transmitting area, the light-transmitting area corresponding one-to-one with the light-emitting area; and a color conversion layer disposed on the side of the light-
blocking layer facing away from the light-emitting layer, comprising a plurality of second light-blocking units and a plurality of color conversion units, the second light-blocking units corresponding to the
first light-blocking units, the area between two adjacent second light-blocking units being a pixel area, and the color conversion units being disposed within the pixel area. The solution in this application can solve the problems of light
crosstalk and light mixing in full-color displays, improving the color
gamut and
image quality during display.