Fingerprint array structure, fingerprint sensor chip, and electronic device

A fingerprint array structure, comprising:

• a pixel array, wherein the pixel array comprises a plurality of pixel units arranged in an array, the plurality of pixel units are divided into a plurality of pixel groups, and each pixel group comprises at least two pixel units;
• a circuit layer, wherein the circuit layer comprises a plurality of pixel circuits and a plurality of non-pixel circuits, wherein projections of the non-pixel circuit and the pixel circuit perpendicularly facing the pixel array are all positioned on the pixel array;
• a shielding layer, and a projection of the shielding layer perpendicularly facing the pixel array at least partially overlaps the projection of the non-pixel circuit perpendicularly facing the pixel array, wherein the shielding layer comprises power supplies and ground networks, and the power supplies and the ground networks are spaced apart from each other in a long strip shape;
• and
• a plurality of connecting line groups, wherein each connecting line group comprises a plurality of connecting lines, each connecting line is connected to one pixel unit, and each pixel circuit is electrically connected to a plurality of pixel units of one pixel group through one connecting line group.