Light-emitting substrate and manufacturing method therefor, and display apparatus

A method for manufacturing a light-emitting substrate, comprising:

• preparing a driving backplane;
• sequentially forming a buffer semiconductor layer and an N-type semiconductor thin film, that are stacked and disposed in an entire surface, on a base substrate;
• forming multi-quantum well layers on the N-type semiconductor thin film disposed in the entire surface;
• forming a plurality of P-type semiconductor layers patterned on the multi-quantum well layers;
• bonding the base substrate with the P-type semiconductor layers formed thereon to the driving backplane, wherein the P-type semiconductor layers are electrically connected to the driving backplane;
• removing the base substrate and the buffer semiconductor layer;
• patterning the N-type semiconductor thin film disposed in the entire surface to form a plurality of N-type semiconductor layers corresponding to the plurality of P-type semiconductor layers;
• wherein the P-type semiconductor layer, the multi-quantum well layer, and the N-type semiconductor layer constitute a first light-emitting chip;
• filling a barrier structure in a gap of the N-type semiconductor layers adjacent to each other;
• and
• forming a transparent conductive layer on the N-type semiconductor layers and the barrier structure.