Shift Register, Driving Method Thereof, Display Substrate and Display Device

A display substrate, comprising a display area and a non-display area, wherein:

• the display substrate comprises a substrate and a circuit structure layer disposed on the substrate, the circuit structure layer comprises a gate driving circuit located in the non-display area and pixel circuits arranged in an array located in the display area, the gate driving circuit comprises a plurality of cascaded shift registers, each shift register of the plurality of cascaded shift registers comprises a storage sub-circuit, a node control sub-circuit and an output control sub-circuit,
• the storage sub-circuit, electrically connected to a first node and a first power supply terminal respectively, is configured to store a voltage difference between a signal of the first node and a signal of the first power supply terminal;
• the node control sub-circuit, electrically connected to a signal input terminal, a first clock signal terminal, a second clock signal terminal, the first node and a second node respectively, is configured to provide a signal of the signal input terminal to the first node under control of the first clock signal terminal and provide the signal of the first node to the second node under control of the second clock signal terminal;
• the output control sub-circuit, electrically connected to the second node, the first power supply terminal, a second power supply terminal and a signal output terminal respectively, is configured to provide the signal of the first power supply terminal or a signal of the second power supply terminal to the signal output terminal under control of the second node;
• the pixel circuits are connected with a light emitting signal line, a scan signal line and a reset signal line;
• a signal output terminal of an i-th stage shift register is electrically connected to a signal input terminal of an (i+1)-th stage shift register, 1≤i≤M−1, and M being the total number of stages of the shift registers;
• and
• the gate driving circuit is electrically connected to at least one of the light emitting signal line, the scan signal line and the reset signal line.