Method and system for imaging fingerprint under screen, and screen

A system for imaging a fingerprint under a screen, comprising:

• a touch circuit configured to acquire a finger pressing area formed by a finger pressing on the screen;
• a processor configured to determine a first light source and a second light source of the screen based on the finger pressing area, wherein arrangement directions of the first light source and the second light source are not perpendicular to a long axis of the finger pressing area;
• and
• an image acquiring assembly configured to acquire a first fingerprint image after the first light source is turned on, and a second fingerprint image after the second light source is turned on;
• and
• wherein the processor splices the first fingerprint image and the second fingerprint image to acquire a target fingerprint image.

A screen, comprising a system for imaging a fingerprint under the screen, wherein the system for imaging the fingerprint under the screen comprises:

• a touch circuit configured to acquire a finger pressing area formed by a finger pressing on the screen;
• a processor configured to determine a first light source and a second light source of the screen based on the finger pressing area, wherein arrangement directions of the first light source and the second light source are not perpendicular to a long axis of the finger pressing area;
• and
• an image acquisition circuit configured to acquire a first fingerprint image after the first light source is turned on, and a second fingerprint image after the second light source is turned on;
• and
• wherein the processor splices the first fingerprint image and the second fingerprint image to acquire a target fingerprint image.