Display substrate and display apparatus

A display substrate, comprising:

• a base substrate and a drive circuit layer disposed on the base substrate, wherein the base substrate comprises:
• a display region and a non-display region, the drive circuit layer comprises:
• a pixel drive circuit located in the display region and a gate drive circuit located in the non-display region;
• a boundary of the display region comprises an arc-shaped boundary, and a non-display region located on an outside of the arc-shaped boundary is referred to as a rounded corner region, the rounded corner region comprises a plurality of first regions and at least one second region;
• the gate drive circuit is configured to provide a drive signal to the pixel drive circuit, and is partially located within a first region, the second region is located between adjacent first regions, extension lines of two boundaries of the second region close to two adjacent first regions intersect, and an area of the second region is smaller than that of the first region,
• wherein the boundary of the display region further comprises:
• a straight line boundary connected with the arc-shaped boundary, a non-display region located on an outside of the straight line boundary is referred to as a straight line region, and a part of the gate drive circuit is located in the straight line region;
• the gate drive circuit comprises a plurality of drive circuits, wherein an arrangement direction of a plurality of drive circuits located in the rounded corner region is an extension direction of a boundary of at least one first region close to the second region, and an arrangement direction of a plurality of drive circuits located in the straight line region intersects with an extension direction of the straight line boundary;
• the first region is provided with a partial circuit of each drive circuit;
• and
• wherein the pixel drive circuit comprises:
• a light emitting transistor, a writing transistor, and a control transistor, the plurality of drive circuits comprise a light emitting drive circuit, a control drive circuit, and a scan drive circuit, the light emitting drive circuit is electrically connected with the light emitting transistor, the scan drive circuit is electrically connected with the writing transistor, and the control drive circuit is electrically connected with the control transistor, transistor types of the writing transistor and the control transistor are opposite, the control drive circuit is located on a side of the light emitting drive circuit close to the display region, and the scan drive circuit is located on a side of the control drive circuit close to the display region;
• the light emitting drive circuit comprises a plurality of cascaded light emitting shift registers, the control drive circuit comprises a plurality of cascaded control shift registers, and the scan drive circuit comprises a plurality of cascaded scan shift registers;
• the first region is provided with one light emitting shift register, at least one control shift register, and at least one scan shift register.