A method of manufacturing a display module including a plurality of pixels (100-1, 100-2), the method comprising: forming a driving circuit layer on a substrate, the driving circuit layer including a plurality of driving circuits and a plurality of electrode pads electronically connected with the plurality of driving circuits; forming an adhesive layer on the driving circuit layer; transferring each of a plurality of light emitting diodes (LEDs) onto a respective area of the adhesive layer corresponding to a respective one of the plurality of electrode pads; and forming a black matrix layer on the adhesive layer, between the plurality of LEDs, being characterised by: attaching a black matrix formation layer, attached to a film, onto the plurality of LEDs and onto a portion of the adhesive layer formed between the plurality of LEDs, and removing a first portion of the black matrix formation layer, attached on the plurality of LEDs, together with the film such that a second portion of the black matrix formation layer remains between the plurality of LEDs as the black matrix layer, wherein each of the plurality of pixels (100-1, 100-2) includes a plurality of sub pixels, and wherein each of the plurality of electrode pads includes a first area (111, 121, 131) for bonding a first LED corresponding to a sub pixel among the plurality of sub pixels and a second area (112, 122, 132) for bonding a second LED corresponding to the sub pixel based on the first LED being defective. forming a driving circuit layer on a substrate, the driving circuit layer including a plurality of driving circuits and a plurality of electrode pads electronically connected with the plurality of driving circuits; forming an adhesive layer on the driving circuit layer; transferring each of a plurality of light emitting diodes (LEDs) onto a respective area of the adhesive layer corresponding to a respective one of the plurality of electrode pads; and forming a black matrix layer on the adhesive layer, between the plurality of LEDs, being characterised by: attaching a black matrix formation layer, attached to a film, onto the plurality of LEDs and onto a portion of the adhesive layer formed between the plurality of LEDs, and removing a first portion of the black matrix formation layer, attached on the plurality of LEDs, together with the film such that a second portion of the black matrix formation layer remains between the plurality of LEDs as the black matrix layer, attaching a black matrix formation layer, attached to a film, onto the plurality of LEDs and onto a portion of the adhesive layer formed between the plurality of LEDs, and removing a first portion of the black matrix formation layer, attached on the plurality of LEDs, together with the film such that a second portion of the black matrix formation layer remains between the plurality of LEDs as the black matrix layer, wherein each of the plurality of pixels (100-1, 100-2) includes a plurality of sub pixels, and wherein each of the plurality of electrode pads includes a first area (111, 121, 131) for bonding a first LED corresponding to a sub pixel among the plurality of sub pixels and a second area (112, 122, 132) for bonding a second LED corresponding to the sub pixel based on the first LED being defective.