CPC H10K 50/813 (2023.02) [H10K 50/822 (2023.02); H10K 50/8426 (2023.02); H10K 50/844 (2023.02); H10K 59/1213 (2023.02); H10K 59/1216 (2023.02); H10K 59/122 (2023.02); H10K 59/124 (2023.02); H10K 59/65 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02)] | 19 Claims |
1. A display substrate, comprising a display region and an opening region, the display region surrounding the opening region,
wherein at least one barrier wall is between the display region and the opening region, and the barrier wall surrounds the opening region;
the barrier wall comprises a first metal layer structure on a base substrate, and at least one side surface, surrounding the opening region, of the first metal layer structure comprises a recess;
the display region comprises a first electrode layer, a second electrode layer and an organic functional layer between the first electrode layer and the second electrode layer for forming a light emitting device;
wherein the first metal layer structure comprises:
a first metal sub-layer on a first side of the base substrate, and
a second metal sub-layer on a side of the first metal sub-layer away from the base substrate,
wherein an orthographic projection of the first metal sub-layer on the base substrate is within an orthographic projection of the second metal sub-layer on the base substrate, so as to form the recess.
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