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

Claim 5:
6. The display substrate according to claim 5, wherein the pixel driving circuit further includes:
a fourth transistor, the fourth transistor including:
a fourth active pattern having a fourth channel region, and a seventh doped region and an eighth doped region that are located on two opposite sides of the fourth channel region; and a portion of the fourth active pattern located in the seventh doped region and a portion of the third active pattern located in the sixth doped region being connected as a whole;
a fourth gate, an orthographic projection of the fourth gate on the base overlapping with an orthographic projection of the fourth channel region on the base; and
a fourth insulating block, the fourth insulating block being a portion of the insulating layer in a region where the fourth transistor is located, and the fourth insulating block having a fourth via; and

a first auxiliary pattern disposed in a same layer as the plurality of data lines and the plurality of first voltage lines; the first auxiliary pattern being electrically connected to a portion of the fourth active pattern located in the eighth doped region through the fourth via;
wherein sizes of all fourth vias in the column of pixel driving circuits gradually increase in the first direction.