Fingerprint identification structure, driving method thereof and electronic device

A fingerprint identification structure, comprising:

• a driving electrode layer, comprising N driving electrodes arranged at intervals;
• a piezoelectric material layer, located on a side of the driving electrode layer;
• a receiving electrode layer, located on a side of the piezoelectric material layer away from the driving electrode layer, and comprising M receiving electrodes;
• an auxiliary driving electrode layer, located on a side of the piezoelectric material layer away from the receiving electrode layer, and arranged in a different layer from the driving electrode layer;
• and
• a first insulating layer, located between the driving electrode layer and the auxiliary driving electrode layer,
• wherein the auxiliary driving electrode layer comprises N auxiliary driving electrodes, the N driving electrodes and the N auxiliary driving electrodes are alternately arranged, an orthographic projection of an i-th auxiliary driving electrode on the piezoelectric material layer is overlapped with an interval between an orthographic projection of an i-th driving electrode on the piezoelectric material layer and an orthographic projection of an (i+1)-th driving electrode on the piezoelectric material layer, M is a positive integer greater than or equal to 2, N is a positive integer greater than or equal to 2, and i is a positive integer greater than or equal to 1 and less than N.