US 11,948,948 B2
Detection substrate and ray detector
Jiangbo Chen, Beijing (CN); Fanli Meng, Beijing (CN); Zeyuan Li, Beijing (CN); Yao Lu, Beijing (CN); Liye Duan, Beijing (CN); and Yanzhao Li, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Aug. 19, 2021, as Appl. No. 17/406,951.
Claims priority of application No. 202011017909.X (CN), filed on Sep. 24, 2020.
Prior Publication US 2022/0093658 A1, Mar. 24, 2022
Int. Cl. H01L 27/146 (2006.01)
CPC H01L 27/14603 (2013.01) [H01L 27/14614 (2013.01); H01L 27/14623 (2013.01); H01L 27/14659 (2013.01); H01L 27/14663 (2013.01)] 11 Claims
OG exemplary drawing
 
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.