Display substrate and display device

A display substrate, comprising a base substrate, an anode layer arranged on the base substrate, an organic light-emitting layer arranged on the anode layer, a pixel definition layer arranged at a side of the anode layer away from the base substrate and configured to define a plurality of pixels, and a plurality of pixel banks arranged on the pixel definition layer;

• wherein
• the pixel banks comprise first pixel banks each arranged between two adjacent subpixels, each first pixel bank is a line bank extending in a first direction, the first pixel banks comprise a first pixel sub-bank and a second pixel sub-bank, a light-emitting region covering an anode of an Organic Light-Emitting Diode (OLED) element and non-light-emitting regions outside the light-emitting region are arranged between the first pixel sub-bank and the second pixel sub-bank in a same pixel along the first direction, the anode of the OLED element is located at the anode layer, the light-emitting region is located at a central position and arranged between two of the non-light-emitting regions in one subpixel in the first direction, and an organic light-emitting layer barrier structure is arranged at the non-light-emitting region;
• wherein the first pixel sub-bank and the second pixel sub-bank divide each pixel into a plurality of subpixels;
• wherein the organic light-emitting layer barrier structure comprises at least one first organic light-emitting layer barrier sub-structure arranged at a side of the first pixel sub-bank facing the second pixel sub-bank, and/or at least one second organic light-emitting layer barrier sub-structure arranged at a side of the second pixel sub-bank facing the first pixel sub-bank;
• wherein an orthogonal projection of each first organic light-emitting layer barrier sub-structure onto the second pixel sub-bank is located between two adjacent second organic light-emitting layer barrier sub-structures;
• wherein the display substrate further comprises a gap, the gap is between the first organic light-emitting layer barrier sub-structure and the second organic light-emitting layer barrier sub-structure and is greater than to Oum in a direction perpendicular to the first direction, and the first organic light-emitting layer barrier sub-structure does not overlap the second organic light-emitting layer barrier structure in the first direction.