Patent ID: 11940530
Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 1:
2. The ultrasonic fingerprint identification circuit according to claim 1, wherein a plurality of fingerprint identification unit groups is arranged along a first direction, each of the plurality of fingerprint identification unit groups comprises at least two fingerprint identification units of the plurality of fingerprint identification units, the at least two fingerprint identification units are arranged along a second direction, and the first direction intersects the second direction;
wherein the at least two fingerprint identification units are electrically connected to one of the plurality of first control signal lines and one of the plurality of second control signal lines; and
wherein for any two adjacent ones of the plurality of fingerprint identification unit groups, one of the plurality of first control signal lines corresponding to one fingerprint identification unit group is reused as one of the plurality of second control signal lines corresponding to the other one fingerprint identification unit group.