Display substrate and display device

A display substrate, comprising:

• a base substrate, comprising a display region, a peripheral region and a barrier region;
• wherein the peripheral region surrounds the display region, and the display region surrounds the barrier region;
• a through hole, arranged in the barrier region;
• wherein a center of the display substrate does not coincide with a center of the through hole;
• a plurality of sub-pixels, arranged in the display region;
• a plurality of signal lines, arranged in the display region, the peripheral region and the barrier region;
• wherein the plurality of signal lines are electrically connected to the plurality of sub-pixels;
• wherein the plurality of signal lines comprise a first signal line;
• a shift register circuit, arranged in the peripheral region and electrically connected to the plurality of signal lines;
• and
• at least one circle of crack detection lines, arranged in the barrier region and surrounding the through hole;
• wherein the at least one circle of crack detection lines are electrically connected to the first signal line, and the first signal line is electrically connected to at least one sub-pixel in the plurality of sub-pixels.