US 12,461,254 B2
Photoelectric detector and electronic device
Guan Zhang, Beijing (CN); Jinyu Li, Beijing (CN); Zhenyu Wang, Beijing (CN); and Zhenwu Jiang, Beijing (CN)
Assigned to Beijing BOE Sensor Technology Co., Ltd., Beijing (CN); and Beijing BOE Technology Development Co., Ltd., Beijing (CN)
Appl. No. 18/025,200
Filed by Beijing BOE Sensor Technology Co., Ltd., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Apr. 28, 2022, PCT No. PCT/CN2022/089699
§ 371(c)(1), (2) Date Mar. 8, 2023,
PCT Pub. No. WO2023/206185, PCT Pub. Date Nov. 2, 2023.
Prior Publication US 2024/0302543 A1, Sep. 12, 2024
Int. Cl. G01T 1/20 (2006.01); H10F 39/00 (2025.01); H10F 39/18 (2025.01)
CPC G01T 1/20182 (2020.05) [H10F 39/1898 (2025.01); H10F 39/802 (2025.01); H10F 39/80377 (2025.01); H10F 39/8057 (2025.01); H10F 39/811 (2025.01)] 20 Claims
OG exemplary drawing
 
1. A photoelectric detector having a pixel region and a peripheral region surrounding the pixel region, the photoelectric detector comprising:
a base substrate;
plurality of pixel units arranged on the base substrate and positioned in the pixel region, at least one of the pixel units comprising a thin film transistor having a first electrode and a second electrode, a photodiode having a first electrode and a second electrode, and a storage capacitor having a first electrode plate and a second electrode plate,
wherein for each pixel unit, the first electrode of the thin film transistor is connected with the first electrode of the photodiode and the first electrode plate of the storage capacitor, the second electrode of the photodiode is connected with a first bias signal line, the second electrode plate of the storage capacitor is connected with a second bias signal line, and the first bias signal line is electrically connected with the second bias signal line at a connection node located in the peripheral region,
wherein an orthographic projection of the second electrode plate of the storage capacitor on the base substrate is located within an orthographic projection of the first electrode plate of the storage capacitor on the base substrate.