A pixel structure, comprising: a first electrode, which comprises a first groove group, a second groove group and a non-hollow portion adjacent to both the first groove group and the second groove group, wherein: the first groove group comprises a plurality of first grooves which are hollow and are successively arranged, each first groove comprises a first end and a second end which are arranged along an extending direction of the first groove, first ends of the plurality of first grooves are on a first side of the first groove group, second ends of the plurality of first grooves are on a second side of the first groove group, and the second side and the first side are opposite to each other; the second groove group is on the second side of the first groove group and comprises a plurality of second grooves which are hollow and are successively arranged, each second groove comprises a third end and a fourth end which are arranged along an extending direction of the second groove, the extending direction of the second grooves intersecting the extending direction of the first grooves, and the third end is on the side of the second groove group close to and facing the second side of the first groove group, the fourth end is arranged on a side opposite to the side on which the third end is arranged; and the third end of at least one of the plurality of second grooves is staggered with respect to the second end of the first groove which is adjacent to the third end of the at least one of the plurality of second grooves; the display substrate further comprises: a first signal line extending in a first direction; a second signal line extending substantially in a second direction and intersecting the first signal line, wherein the first signal line is a gate line and the second signal line is a data line; characterized in that, the first electrode comprises a first edge and a second edge which are intersected with each other and arranged in the second direction, the first edge is parallel to the first groove, and the second edge is parallel to the second groove; the second signal line comprises a first extension portion and a second extension portion which are intersected with each other and arranged along the second direction, the first extension portion is parallel to the first edge, and the second extension portion is parallel to the second edge. the first groove group comprises a plurality of first grooves which are hollow and are successively arranged, each first groove comprises a first end and a second end which are arranged along an extending direction of the first groove, first ends of the plurality of first grooves are on a first side of the first groove group, second ends of the plurality of first grooves are on a second side of the first groove group, and the second side and the first side are opposite to each other; the second groove group is on the second side of the first groove group and comprises a plurality of second grooves which are hollow and are successively arranged, each second groove comprises a third end and a fourth end which are arranged along an extending direction of the second groove, the extending direction of the second grooves intersecting the extending direction of the first grooves, and the third end is on the side of the second groove group close to and facing the second side of the first groove group, the fourth end is arranged on a side opposite to the side on which the third end is arranged; and the third end of at least one of the plurality of second grooves is staggered with respect to the second end of the first groove which is adjacent to the third end of the at least one of the plurality of second grooves; the display substrate further comprises: a first signal line extending in a first direction; a second signal line extending substantially in a second direction and intersecting the first signal line, wherein the first signal line is a gate line and the second signal line is a data line; characterized in that, the first electrode comprises a first edge and a second edge which are intersected with each other and arranged in the second direction, the first edge is parallel to the first groove, and the second edge is parallel to the second groove; the second signal line comprises a first extension portion and a second extension portion which are intersected with each other and arranged along the second direction, the first extension portion is parallel to the first edge, and the second extension portion is parallel to the second edge. a first signal line extending in a first direction; a second signal line extending substantially in a second direction and intersecting the first signal line, wherein the first signal line is a gate line and the second signal line is a data line; characterized in that, the first electrode comprises a first edge and a second edge which are intersected with each other and arranged in the second direction, the first edge is parallel to the first groove, and the second edge is parallel to the second groove; the second signal line comprises a first extension portion and a second extension portion which are intersected with each other and arranged along the second direction, the first extension portion is parallel to the first edge, and the second extension portion is parallel to the second edge.