Fingerprint-on-display recognition

A method for fingerprint authentication, comprising:

• sensing a finger positioned on a display;
• applying a colored light to the finger;
• capturing a fingerprint image based on the colored light reflected from the finger;
• and
• comparing the fingerprint image with a control fingerprint image to authenticate the finger.

A system to perform fingerprint authentication, comprising:

• a display on which a finger is to be positioned for the fingerprint authentication;
• a light element to emit a colored light out of the display on the finger;
• one or more sensors to detect the colored light reflected toward the display by the finger;
• and
• a readout integrated circuit (ROIC) to:
• generate a fingerprint image based of the reflected colored light detected by the one or more sensors;
• and
• determine whether to authenticate the finger based on a comparison of the fingerprint image with a control fingerprint image.