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

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

• providing a base substrate;
• forming a first electrode group on the base substrate;
• wherein the first electrode group comprises a first electrode and a second electrode opposite to each other;
• forming a second electrode group on the base substrate;
• wherein the second electrode group comprises a third electrode and a fourth electrode opposite to each other;
• wherein the first electrode, the second electrode, the third electrode, and the fourth electrode enclose an annular structure, and the first electrode, the second electrode, the third electrode, and the fourth electrode are independent from each other;
• and
• forming a light-emitting layer in the annular structure on the base substrate;
• wherein the light-emitting layer comprises a bottom surface facing a side of the base substrate, a top surface facing away from the side of the base substrate, and a first side surface, a second side surface, a third side surface, and a fourth side surface connecting the bottom surface with the top surface;
• wherein the first side surface and the second side surface are opposite to each other, the third side surface and the fourth side surface are opposite to each other, the first electrode is on a side of the first side surface facing away from the light-emitting layer, the second electrode is on a side of the second side surface facing away from the light-emitting layer, the third electrode is on a side of the third side surface facing away from the light-emitting layer, and the fourth electrode is on a side of the fourth side surface facing away from the light-emitting layer.