US 11,986,331 B2
Flat panel detector and imaging system
Jinyu Li, Beijing (CN); and Xuecheng Hou, Beijing (CN)
Assigned to BEIJING BOE SENSOR TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/790,268
Filed by BEIJING BOE SENSOR TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jun. 11, 2021, PCT No. PCT/CN2021/099751
§ 371(c)(1), (2) Date Jun. 30, 2022,
PCT Pub. No. WO2022/022110, PCT Pub. Date Feb. 3, 2022.
Claims priority of application No. 202010747055.4 (CN), filed on Jul. 29, 2020.
Prior Publication US 2023/0041531 A1, Feb. 9, 2023
Int. Cl. A61B 6/42 (2024.01); A61B 6/02 (2006.01); H01L 27/146 (2006.01)
CPC A61B 6/4208 (2013.01) [A61B 6/02 (2013.01); H01L 27/14663 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A flat panel detector, comprising a plurality of pixel units arranged in array, wherein
the plurality of pixel units comprises:
a plurality of photosensitive pixel units, wherein each of the plurality of photosensitive pixel units comprises a photoelectric sensor, and the photoelectric sensor is configured to convert an incident light into an electrical signal so that a photosensitive pixel unit in which the photoelectric sensor is located has a grayscale that changes according to a real-time change of the incident light; and
a plurality of alignment pixel units, wherein each of the plurality of alignment pixel units is configured to have a fixed grayscale, and the fixed grayscale does not change according to the real-time change of the incident light,
the plurality of alignment pixel units comprise: a plurality of first alignment pixel units, wherein each of the plurality of first alignment pixel units has a first fixed grayscale; and a plurality of second alignment pixel units, wherein each of the plurality of second alignment pixel units has a second fixed grayscale, and the first fixed grayscale is different from the second fixed grayscale.