Manufacturing method for light-emitting device and light-emitting device thereby

A method of manufacturing a light-emitting apparatus, the method comprising:

• forming a T-shaped light-emitting rod comprising a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer;
• forming a sacrificial layer on a support substrate and forming an insulating layer on the sacrificial layer;
• forming a coupling recess in the insulating layer, coupling the T-shaped light-emitting rod to the coupling recess, and laying and aligning the T-shaped light-emitting rod on the support substrate in a lateral direction (├);
• forming a first electrode connected to the first conductive semiconductor layer of the aligned T-shaped light-emitting rod and forming a second electrode connected to the second conductive semiconductor layer to form a T-shaped light-emitting rod structure;
• transferring the T-shaped light-emitting rod structure to a target substrate;
• and
• removing the sacrificial layer and removing the support substrate,
• wherein the step of laying and aligning the T-shaped light-emitting rod on the support substrate in the lateral direction comprises:
• a first process of forming a sacrificial layer on the support substrate, forming a second insulating layer thereon, forming a first coupling recess in the second insulating layer such that a first T-shaped light-emitting rod can be aligned in the lateral direction, and aligning the first T-shaped light-emitting rod in the first coupling recess,
• a second process of shielding the first T-shaped light-emitting rod with the second insulating layer, forming a second coupling recess in an adjacent region, and aligning a second T-shaped light-emitting rod having a different active layer from the first T-shaped light-emitting rod in the second coupling recess,
• a third process of shielding the second T-shaped light-emitting rod with the second insulating layer, forming a third coupling recess in an adjacent region, and aligning a third T-shaped light-emitting rod having a different active layer from the first and second T-shaped light-emitting rods in the third coupling recess, whereby
• pluralities of first, second, and third T-shaped light-emitting rods having different emission wavelengths are simultaneously aligned on the support substrate by the first process, the second process, and the third process, respectively.