Patent ID: 11914811
Assignee: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 0:
1. A display substrate, comprising a flexible base substrate and a display area, a binding pin area, a first unit test electrode and a second unit test electrode which are located at one side of the flexible base substrate, wherein the binding pin area is located at one side of the display area, the first unit test electrode is located at one side of the binding pin area away from the display area, and the second unit test electrode is located at one side of the first unit test electrode away from the binding pin area; and
the display substrate comprises a first metal layer, a second metal layer and an insulating layer located between the first metal layer and the second metal layer, wherein the first unit test electrode is located on the first metal layer and the second unit test electrode is located on the second metal layer;
wherein the display area comprises a first insulating layer located on the flexible base substrate, an active layer located on the first insulating layer, a second insulating layer covering the active layer, a first gate metal layer located on the second insulating layer, a third insulating layer covering the first gate metal layer, a second gate metal layer located on the third insulating layer, a fourth insulating layer covering the second gate metal layer, a first source-drain metal layer located on the fourth insulating layer, and a fifth insulating layer covering the first source-drain metal layer; and
the first metal layer is disposed in a same layer as the first gate metal layer, and the second metal layer is disposed in a same layer as the second gate metal layer; or, the first metal layer is disposed in a same layer as the second gate metal layer, and the second metal layer is disposed in a same layer as the first source-drain metal layer.