Display substrate and manufacturing method thereof, and display apparatus

A manufacturing method of a display substrate, the manufacturing method comprising:

• manufacturing a backplane;
• forming first light-emitting devices capable of emitting first color light and second light-emitting devices capable of emitting second color light on the backplane;
• forming a low-refractive-index intercalation layer at a side, away from the backplane, of the first light-emitting devices and the second light-emitting devices;
• and
• forming an encapsulation layer on a side of the low-refractive-index intercalation layer away from the backplane, the encapsulation layer including a first inorganic barrier layer, a first organic barrier layer and a second inorganic barrier layer that are sequentially stacked on a side of the low-refractive-index intercalation layer away from the backplane;
• wherein a refractive index of the low-refractive-index intercalation layer is less than a refractive index of the first inorganic barrier layer;
• and in a direction perpendicular to the backplane, a transmittance of the low-refractive-index intercalation layer to the first color light is less than a transmittance of the low-refractive-index intercalation layer to the second color light.