Patent ID: 11903272
Assignee: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. The display substrate according to claim 14, further comprising:
a planarization layer disposed between the pixel driving circuits and the light-emitting devices; the planarization layer having a plurality of eleventh vias; wherein
the pixel driving circuit includes a fourth transistor and a first auxiliary pattern; and the light-emitting device includes an anode, a light-emitting functional layer, and a cathode that are sequentially stacked in a thickness direction of the base, and the anode of the light-emitting device is electrically connected to the first auxiliary pattern through at least one eleventh via;
wherein sizes of all eleventh vias in the column of pixel driving circuits gradually increase in the first direction.