Patent ID: 11930665
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 4:
5. A display substrate having a display region and a peripheral region, the display substrate comprising:
a substrate;
a first dam and a second dam that are located on a side of the substrate and located in the peripheral region; wherein the second dam is farther from the display region than the first dam, and a height of the second dam is greater than a height of the first dam; and
a connection portion located between the first dam and the second dam, wherein the connection portion connects the first dam and the second dam, and a height of the connection portion is less than the height of the first dam: wherein
at least a portion of the first dam, at least a portion of the connection portion and at least a portion of the second dam are of an integrative structure;
the display region includes a main display region and an auxiliary display region;
a light transmittance of a portion of the display substrate located in the auxiliary display region is greater than a light transmittance of a portion of the display substrate located in the main display region; and
the display substrate further comprises a plurality of first sub-pixels and a plurality of second sub-pixels that are all disposed on the side of the substrate; wherein the plurality of first sub-pixels are located in the main display region, and each second sub-pixel includes a pixel driving circuit and a light-emitting device disposed on a side of the pixel driving circuit away from the substrate, the light-emitting device is located in the auxiliary display region and coupled to the pixel driving circuit; and at least one pixel driving circuit in the plurality of second sub-pixels is located outside the auxiliary display region.