Method and apparatus for acquiring fingerprint image and terminal device

An apparatus for acquiring a fingerprint image, comprising:

• a light source device and an optical fingerprint module,
• the optical fingerprint module configured to perform a fingerprint identification on a to-be-identified fingerprint;
• the light source device configured to provide a light source for a process of the fingerprint identification performed by the optical fingerprint module;
• wherein the optical fingerprint module is further configured to:
• determine target light information of a current light environment of the to-be-identified fingerprint,
• determine a target operating parameter corresponding to the target light information according to a correspondence between light information and operating parameters, the operating parameter being a parameter used when a fingerprint image is acquired to perform a fingerprint identification, and
• acquire a first fingerprint image of the to-be-identified fingerprint according to the target operating parameter.

A terminal device, comprising:

• a self-luminous display panel and an optical fingerprint module, the optical fingerprint module being located below the self-luminous display panel, the self-luminous display panel configured to provide a light source for the optical fingerprint module;
• and
• the optical fingerprint module is configured to execute a method comprising:
• determining environment light information for fingerprint identification;
• determining an operating parameter corresponding to the environment light information according to a correspondence between light information and operating parameters;
• and
• acquiring a fingerprint image based on the operating parameter.