Patent ID: 11895878
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 20:
21. The display substrate according to claim 16, wherein the display substrate further includes:
a first passivation layer disposed on one side of the plurality of thin film transistors distal to the base substrate;
a first planarization layer disposed on one side of the first passivation layer distal to the base substrate;
a second planarization layer disposed on one side of the first planarization layer distal to the base substrate;
a pixel defining layer disposed on one side of the second planarization layer distal to the base substrate;
a spacer layer disposed on one side of the pixel defining layer distal to the base substrate;
wherein the first retaining wall structure includes a first retaining wall block, a second retaining wall block, a third retaining wall block and a fourth retaining wall block, which are sequentially stacked in a direction away from the base substrate;
the first retaining wall block is in the same layer and made of the same material as the first planarization layer; the second retaining wall block is in the same layer and made of the same material as the second planarization layer; the third retaining wall block is in the same layer and made of the same material as the pixel defining layer; the fourth retaining wall block is in the same layer and made of the same material as the spacer layer;
the second retaining wall structure includes a fifth retaining wall block, a sixth retaining wall block and a seventh retaining wall block that are sequentially stacked in the direction away from the base substrate; the fifth retaining wall block is in the same layer and made of the same material as the second planarization layer; the sixth retaining wall block is in the same layer and made of the same material as the pixel defining layer; the seventh retaining wall block is in the same layer and made of the same material as the spacer layer.