Display substrate, detection method therefor, and display device

A display substrate, comprising:

• a substrate, comprising a display region and a peripheral region surrounding the display region;
• a plurality of subpixels, located in the display region;
• a plurality of data lines, located in the display region, and electrically connected with the plurality of subpixels;
• a first control signal line, located in the peripheral region;
• a second control signal line, located in the peripheral region;
• a crack detection line, located in the peripheral region, and arranged to surround the display region;
• at least one data detection line, located in the peripheral region;
• a plurality of display screen detection elements, located in the peripheral region, wherein at least one of the plurality of display screen detection elements is electrically connected with the first control signal line, the at least one data detection line and at least one of the plurality of data lines, and configured to transmit a detection signal provided by the at least one data detection line to at least one of the plurality of data lines according to a control signal provided by the first control signal line;
• and
• a plurality of crack detection elements, located in the peripheral region, wherein at least one of the plurality of crack detection elements is electrically connected with the crack detection line, the second control signal line and at least one of the plurality of data lines;
• wherein the first control signal line, the second control signal line and the at least one data detection line are all arranged to surround the display region;
• wherein the plurality of data lines comprise a first data line, a second data line and a third data line, and at least one of the plurality of crack detection elements is electrically connected with one of the first data line, the second data line and the third data line;
• wherein the display substrate further comprises:
• a test line located in the pheripheral region, wherein at least one of the plurality of crack detection elements is electrically connected with the crack detection line, the test line, the second control signal line, the first data line, the second data line and the third data line;
• and the at least one of plurality of crack detection elements is configured to transmit a test signal provided by the test line to at least plurality of data lines according to a control signal provided by the second control signal line;
• wherein at least one of the plurality of crack detection elements at least comprises a first transistor, a second transistor and a third transistor;
• a control electrode of the first transistor, a control electrode of the second transistor and a control electrode of the third transistor are all electrically connected with the second control signal line;
• a first electrode of the first transistor, a first electrode of the second transistor and a first electrode of the third transistor are electrically connected with a respective one of the plurality of data lines respectively;
• and
• a second electrode of the second transistor in the at least one of the plurality of crack detection elements is electrically connected with the crack detection line, and a second electrode of the first transistor and a second electrode of the third transistor are electrically connected with the test line;
• and second electrodes of first transistors, second electrodes of second transistors and second electrodes of third transistors in the remaining crack detection elements are all electrically connected with the test line.