Patent ID: 11900880
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 3:
4. The display substrate according to claim 1, wherein the first pixel driving circuit further comprises a light-emitting control transistor, and the light-emitting control transistor comprises an active layer; and
the display substrate further comprises a first connection portion, a layer where the first connection portion is located is on a side of a layer where the scan signal line is located away from the base substrate, and one end of the first connection portion is electrically connected to the active layer of the light-emitting device initialization transistor through a first via hole, and the other end of the first connection portion is electrically connected to the active layer of the light-emitting control transistor through a second via hole.