Display substrate and display device

A display substrate, comprising:

• a base substrate;
• a plurality of sub-pixels arranged on the base substrate in an array in a first arrangement direction and a second arrangement direction, wherein the plurality of sub-pixels comprise a plurality of light emitting regions;
• a first electrode layer located on the base substrate, wherein the first electrode layer comprises a plurality of anode structures;
• and
• a pixel definition layer located on a side of the first electrode layer away from the base substrate, wherein the pixel definition layer comprises a plurality of openings to define the plurality of light emitting regions,
• wherein for at least some sub-pixels in the plurality of sub-pixels, an orthographic projection of the opening of each sub-pixel on the base substrate falls into an orthographic projection of the anode structure of the sub-pixel on the base substrate, a figure of the orthographic projection of the opening of each sub-pixel on the base substrate has a different shape from a figure of the orthographic projection of the anode structure of the sub-pixel on the base substrate;
• and the figure of the orthographic projection of the anode structure of each sub-pixel on the base substrate has a greater number of symmetry axis than the figure of the orthographic projection of the opening of the sub-pixel on the base substrate.