Display substrate, display panel and display device

A display substrate, comprising:

• at least one first region,
• wherein the first region comprises a first edge and a second edge, wherein the first edge is connected with the second edge through a connecting edge;
• wherein an extension direction of the first edge is perpendicular to an extension direction of the second edge, and an extension direction of the connecting edge is neither parallel to the extension direction of the first edge nor parallel to the extension direction of the second edge;
• wherein the first region further comprises a plurality of pixel units, wherein the plurality of pixel units comprises a first pixel unit and a second pixel unit, and wherein the first pixel unit is adjacent to the connecting edge;
• wherein the first pixel unit comprises at least three sub-pixels corresponding to different colors arranged along a row direction, and wherein at least one of the sub-pixels in the first pixel unit is an irregular-shaped sub-pixel;
• wherein the second pixel unit comprises at least three sub-pixels corresponding to different colors arranged along the row direction, and each of the sub-pixels in the second pixel unit is a regular sub-pixel;
• wherein a shape of the irregular-shaped sub-pixel is different from a shape of the regular sub-pixel;
• and
• wherein along the row direction, the adjacent first pixel unit and second pixel unit share at least one sub-pixel.