Patent ID: 11948948
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A detection substrate, comprising:
a base substrate;
a plurality of detection pixel circuits, arranged on the base substrate;
a first passivation layer, arranged on a side, facing away from the base substrate, of the plurality of detection pixel circuits;
a planarization layer, arranged on a side, facing away from the base substrate, of the first passivation layer; wherein a surface of the side, facing away from the first passivation layer, of the planarization layer is a plane, and the planarization layer is a lightproof resin layer; and
a plurality of photosensitive devices;
wherein the plurality of photosensitive devices are electrically connected to the plurality of detection pixel circuits in a one-to-one correspondence through vias penetrating through the first passivation layer and the planarization layer;
each of the plurality of photosensitive devices comprises a first portion and a second portion;
an orthographic projection of the first portion on the base substrate and an orthographic projection of a detection pixel circuit correspondingly electrically connected with the first portion on the base substrate overlap each other; and
an orthographic projection of the second portion on the base substrate and an orthographic projection of a detection pixel circuit correspondingly electrically connected with the second portion on the base substrate do not overlap each other.