Fingerprint identification system having real/fake fingerprint identification function for mobile phone, and identification method using same

A fingerprint identification system having a real/fake fingerprint identification function for a mobile phone, comprising:

• a fingerprint collection module;
• a spectral chip;
• a data storage module;
• and
• an identification module;
• wherein the fingerprint collection module is arranged under a screen of the mobile phone;
• the screen of the mobile phone provides a light source with three primary color bands of red, blue and green to illuminate a fingerprint to be identified during fingerprint collection;
• and after illumination, a light reflected by a finger forms an incident light of the spectral chip;
• the spectral chip is arranged inside the mobile phone;
• the spectral chip is configured to modulate a spectrum of the incident light, and convert an optical signal into an electrical signal to be amplified and converted by analog-to-digital conversion into a digital signal or a code for output;
• meanwhile, according to an intensity information of an output optical signal and a location information of a corresponding pixel, an inversion of a spectral data of the light reflected by the finger and a fingerprint image data is performed;
• the data storage module is electrically connected to the spectral chip, and is configured to store a real finger reflection spectral data and a real fingerprint image data inputted in advance;
• and
• the identification module is configured to compare the spectral data and the fingerprint image data collected by the spectral chip respectively with the real finger reflection spectral data and the real fingerprint image data pre-stored in the data storage module;
• and when the spectral data and the fingerprint image data collected by the spectral chip respectively match with the real finger reflection spectral data and the real fingerprint image data pre-stored in the data storage module, the mobile phone is unlocked.