Micro LED transfer device and micro LED transferring method using the same

A light emitting diode (LED) transfer device comprising:

• a transfer part configured to transfer a relay substrate having at least one LED arranged at a lower part of the relay substrate;
• an adhesive layer arranged between the relay substrate and the at least one LED;
• a mask arranged at an upper part of the relay substrate, and having a plurality of openings, wherein a position of the plurality of openings corresponds to a position of the at least one LED;
• a first laser configured to irradiate a first laser light having a first wavelength to the mask;
• a second laser configured to irradiate a second laser light having a second wavelength different from the first wavelength to the mask;
• and
• a processor configured to:
• control the transfer part to cause the at least one LED to contact an upper part of a coupling layer of a target substrate, and
• based on the coupling layer contacting the at least one LED, control the first laser to irradiate the first laser light toward the at least one LED, and subsequently control the second laser to irradiate the second laser light toward the at least one LED,
• wherein based on an area of the adhesive layer being irradiated with the first laser light, the adhesive layer is configured to separate a LED arranged on the area from among the at least one LED from the relay substrate, and
• wherein based on an area of the coupling layer being irradiated with the second laser light, the coupling layer is configured to connect the separated LED to the target substrate.