Display substrate and display device

The utility model discloses a display substrate and a display device. The display substrate comprises a substrate, a plurality of sub-pixels, a plurality of data lines and a plurality of data line leads, the substrate comprises a display area and a first frame area, the sub-pixels are located in the display area, the data lines are located in the display area, the data lines are electrically connected with the sub-pixels, and the data line leads are located in the first frame area. The multiple data line leads are located in the first frame area and electrically connected with the multiple data lines, the multiple driving chip pins are located in the first frame area, one driving chip pin is electrically connected with one data line lead, and the multiple driving chip pins are located on the sides, away from the substrate, of the multiple data line leads; wherein the surface of one side, far away from the substrate, of each driving chip pin is provided with at least one groove structure, the at least one groove structure comprises a groove bottom and a groove wall connected with the groove bottom, the at least one groove structure has the groove depth in the thickness direction of the display substrate, and the groove depth ranges from 0.40 micrometer to 0.65 micrometer. The display substrate can solve the problem that dark lines in the first frame area of an existing display substrate are poor.