Patent ID: 11917891
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 15:
16. The display substrate according to claim 1, wherein in a plane perpendicular to the display substrate, the display substrate comprises a buffer layer, a first active layer, a gate insulating layer, a first gate metal layer, a first insulating layer, a second gate metal layer, a second insulating layer and a first source-drain metal layer stacked on the base substrate;
the at least one test control signal line, the at least one test data signal line, the first power supply bus and the plurality of power supply lines are all located on the first source-drain metal layer; and
the plurality of connecting parts comprises first connecting parts and second connecting parts, wherein the second connecting parts are located on the second gate metal layer, and the second connecting parts are connected with the first power supply bus and the plurality of power supply lines respectively through via holes on the second insulating layer; the first connecting parts are located on the first gate metal layer, and the first connecting parts are connected with the first power supply bus and the plurality of power supply lines respectively through via holes penetrating through the first insulating layer and the second insulating layer.