Electrostatic discharge circuit, display substrate, and display device

A display substrate, comprising:

• a base substrate, comprising a display region and a peripheral region located on at least one side of the display region;
• at least one signal line and at least one electro-static discharge circuit, located in the peripheral region;
• wherein each electro-static discharge circuit is connected between a first voltage line and a second voltage line, is electrically connected to a signal line, and is configured to provide an electro-static discharge path to the signal line;
• wherein the electro-static discharge circuit comprises at least one oxide thin film transistor;
• the oxide thin film transistor comprises an active layer, a bottom gate and a top gate, the bottom gate is located on a side of the active layer close to the base substrate, the top gate is located on a side of the active layer away from the base substrate, and the bottom gate is electrically connected to a third voltage line;
• a first voltage signal provided by the first voltage line is greater than a second voltage signal provided by the second voltage line and greater than a third voltage signal provided by the third voltage line.

A display substrate, comprising:

• a base substrate, comprising a display region and a peripheral region located on at least one side of the display region;
• at least one signal line and at least one electro-static discharge circuit, located in the peripheral region;
• wherein each electro-static discharge circuit comprises a plurality of transistors connected in series between a first voltage line and a second voltage line, at least one transistor of the plurality of transistors is an oxide thin film transistor, the oxide thin film transistor comprises a top gate and a bottom gate, the bottom gate of the oxide thin film transistor is electrically connected to a third voltage line;
• a first voltage signal provided by the first voltage line is greater than a second voltage signal provided by the second voltage line, and greater than a third voltage signal provided by the third voltage line;
• and
• a signal line is electrically connected to the at least one electro-static discharge circuit, the signal line is configured to discharge static electricity through the at least one electro-static discharge circuit;
• a plurality of transistors in the at least one electro-static discharge circuit to which the signal line is electrically connected are arranged in an array, or a plurality of electro-static discharge circuits to which the signal line is electrically connected are arranged in an array.