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

Claim 4:
5. The display substrate according to claim 3, wherein the pixel driving circuit further includes a storage capacitor;
the storage capacitor includes:
a first storage electrode;
a second storage electrode disposed between the first storage electrode and a layer where the plurality of data lines and the plurality of first voltage lines are located; and

the driving transistor includes:
a third active pattern having a third channel region, and a fifth doped region and a sixth doped region that are located on two opposite sides of the third channel region; and a portion of the third active pattern located in the fifth doped region and the portion of the first active pattern located in the second doped region being connected as a whole; and
a third gate further used as the first storage electrode, an orthographic projection of the third gate on the base overlapping with an orthographic projection of the third channel region on the base;

wherein the insulating layer includes a first insulating sub-layer, a second insulating sub-layer, and a third insulating sub-layer that are sequentially stacked, the first insulating sub-layer is located between the third active pattern and the first storage electrode, the second insulating sub-layer is located between the first storage electrode and the second storage electrode, and the third insulating sub-layer is located between the second storage electrode and the layer where the plurality of data lines and the plurality of first voltage lines are located; the first voltage line is electrically connected to the second storage electrode through a third via penetrating the third insulating sub-layer.