Abstract: There is provided a display substrate, including: a base; light-emitting units on a side of the base; a flat light-shielding functional layer, including a black matrix and a first planarization layer, on a side of the light-emitting units away from the base, light outgoing openings being provided in the black matrix and being in one-to-one correspondence with the light-emitting units, and the first planarization layer at least filling the light outgoing openings; and a color filter layer, including color filter patterns in one-to-one correspondence with the light outgoing openings, on a side of the flat light-shielding functional layer away from the base, an orthographic projection of each color filter pattern on the base covering an orthographic projection of the light outgoing opening corresponding to the color filter pattern on the base. A method for manufacturing a display substrate, a display panel and a display apparatus are further provided.