Electronic device performing fingerprint authentication and operation method thereof

A method of operating an electronic device to perform fingerprint authentication, the method comprising:

• controlling a plurality of row touch lines and a plurality of column touch lines to sense a touch of a user, in response to the electronic device operating in a normal mode;
• obtaining fingerprint information from a fingerprint of the user, in response to the electronic device operating in a fingerprint sensing mode;
• controlling the plurality of row touch lines and the plurality of column touch lines to obtain secondary biometrics including touch profile information, first indicator information, and second indicator information associated with the fingerprint of the user, in response to the electronic device operating in the fingerprint sensing mode;
• performing a fingerprint matching operation and an anti-spoofing operation based on the fingerprint information, the touch profile information, the first indicator information, and the second indicator information to generate an authentication result, in response to the electronic device operating in the fingerprint sensing mode;
• and
• performing a security operation based on the authentication result.

An electronic device configured to perform fingerprint authentication, the electronic device comprising:

• a touch panel including a plurality of touch lines extending along a row direction and a column direction;
• a touch driver configured to,
• in response to the electronic device operating in a normal mode, control the plurality of touch lines based on a first driving scheme and a second driving scheme to sense a touch of a user, and
• in response to the electronic device operating in a fingerprint sensing mode,
• control the plurality of touch lines based on the first driving scheme to obtain touch profile information,
• control the plurality of touch lines based on the second driving scheme to obtain first indicator information, and
• control the plurality of touch lines based on a third driving scheme to obtain second indicator information;
• a fingerprint sensor configured to obtain fingerprint information from the fingerprint of the user, in response to the electronic device operating in the fingerprint sensing mode;
• and
• an application processor configured to perform,
• a fingerprint matching operation and an anti-spoofing operation on the fingerprint information and secondary biometrics, and
• perform a security operation in response to results of the fingerprint matching operation and the anti-spoofing operation.