Substrate, method for manufacturing substrate, and display panel

A method of manufacturing a substrate, comprising:

• forming a reflective layer on a base;
• arranging an amorphous silicon layer on the reflective layer for an active switch and an active light-emitting pixel array;
• and
• converting the amorphous silicon layer into a polysilicon layer by laser;
• wherein the reflective layer is arranged to fully cover the base and comprises a smooth surface, and wherein the active light-emitting pixel array is coupled with the active switch.

A display panel comprising, a substrate, the substrate comprising:

• a base;
• an active switch, formed on the base and comprising a polysilicon layer;
• an active light-emitting pixel array, coupled with the active switch;
• and
• a reflective layer, which is formed on the base at the bottom of the active switch and which is disposed farther away from a light incident surface of the substrate than the active switch;
• wherein the reflective layer fully covers the base and comprises a smooth surface.