Fingerprint recognizer, fingerprint recognition method, light emitter device, optical sensor, and display device

A fingerprint recognition method, comprising:

• by a pressure detector circuit, detecting a strength at which a finger presses a display screen and sending a signal to a light emitter unit according to the strength;
• by a light emitter unit, emitting a light signal according to the signal;
• by a light sensor unit, receiving a light-reflection signal formed by the light signal reflected by the finger, converting the light-reflection signal into an electrical signal, and outputting the electrical signal to a fingerprint analyzer circuit;
• and
• by the fingerprint analyzer circuit, determining fingerprint information according to the electrical signal received by the fingerprint analyzer circuit.

A display device, comprising a fingerprint recognizer, wherein the fingerprint recognizer comprises a pressure detector circuit, a light emitter unit, a light sensor unit and a fingerprint analyzer circuit, wherein

• the pressure detector circuit is configured to detect a strength at which a finger presses a display screen of the fingerprint recognizer, and to send a signal to the light emitter unit according to the strength;
• the light emitter unit comprising a light-emitting diode is configured to emit a light signal according to the signal;
• the light sensor unit comprising a plurality of photo sensors is configured to receive a light-reflection signal formed by the light signal reflected by the finger, to convert the light-reflection signal into an electrical signal, and to output the electrical signal to the fingerprint analyzer circuit;
• and
• the fingerprint analyzer circuit is configured to determine fingerprint information according to the electrical signal received by the fingerprint analyzer circuit.