Display substrate and display device

A display substrate, comprising:

• a base substrate;
• and
• a plurality of repeat units on the base substrate, wherein each of the plurality of repeat units comprises one first-color sub-pixel, two second-color sub-pixels and one third-color sub-pixel, in at least one of the plurality of repeat units, the one first-color sub-pixel and the one third-color sub-pixel are arranged in a first direction, the two second-color sub-pixels are arranged in a second direction, the plurality of repeat units are arranged in the first direction to form a plurality of repeat unit groups, the plurality of repeat unit groups are arranged in the second direction, and adjacent repeat unit groups in the plurality of repeat unit groups are staggered from each other in the first direction,
• wherein, in at least one of the plurality of repeat units, each of the one first-color sub-pixel, the two second-color sub-pixels and the one third-color sub-pixel comprises a light-emitting layer;
• the display substrate comprises at least one region not overlapped with the light-emitting layer in a direction perpendicular to the base substrate, and the at least one region is at least surrounded by light-emitting layers of at least two sub-pixels of different colors which are adjacent to each other;
• in a same repeat unit, at least one of the two second-color sub-pixels and the one first-color sub-pixel are arranged in the first direction, and at least two adjacent sub-pixels of different colors surrounding the at least one region comprise two sub-pixels of different colors which are adjacently arranged and have light-emitting layers connected.