An electronic device, comprising: a display including a plurality of pixels to display a screen; a fingerprint sensor disposed below the display such that contacts of a finger within a sensing area of the display are detected by the fingerprint sensor through the display; and a processor electrically connected to the display and the fingerprint sensor, wherein the processor is configured to: output an interface corresponding to the sensing area in a screen area of the display in response to detecting an event related to a sensing of a fingerprint, wherein the screen area of the display including the interface is displayed at a specific brightness using a first display attribute, wherein the first display attribute is a brightness; responsive to detecting an approach or a contact of an object to the interface while the first display attribute is used, altering at least a partial display area external to the sensing area by use of a second display attribute while increasing the brightness of the sensing area, wherein the second display attribute is a low brightness state which has lower brightness than the first display attribute, such that the partial display area operates in the low brightness state; detect a signal corresponding to the object using the fingerprint sensor while the second display attribute is applied to the at least the partial area; and authenticate the object based at least on the detected signal. a display including a plurality of pixels to display a screen; a fingerprint sensor disposed below the display such that contacts of a finger within a sensing area of the display are detected by the fingerprint sensor through the display; and a processor electrically connected to the display and the fingerprint sensor, wherein the processor is configured to: output an interface corresponding to the sensing area in a screen area of the display in response to detecting an event related to a sensing of a fingerprint, wherein the screen area of the display including the interface is displayed at a specific brightness using a first display attribute, wherein the first display attribute is a brightness; responsive to detecting an approach or a contact of an object to the interface while the first display attribute is used, altering at least a partial display area external to the sensing area by use of a second display attribute while increasing the brightness of the sensing area, wherein the second display attribute is a low brightness state which has lower brightness than the first display attribute, such that the partial display area operates in the low brightness state; detect a signal corresponding to the object using the fingerprint sensor while the second display attribute is applied to the at least the partial area; and authenticate the object based at least on the detected signal. output an interface corresponding to the sensing area in a screen area of the display in response to detecting an event related to a sensing of a fingerprint, wherein the screen area of the display including the interface is displayed at a specific brightness using a first display attribute, wherein the first display attribute is a brightness; responsive to detecting an approach or a contact of an object to the interface while the first display attribute is used, altering at least a partial display area external to the sensing area by use of a second display attribute while increasing the brightness of the sensing area, wherein the second display attribute is a low brightness state which has lower brightness than the first display attribute, such that the partial display area operates in the low brightness state; detect a signal corresponding to the object using the fingerprint sensor while the second display attribute is applied to the at least the partial area; and authenticate the object based at least on the detected signal. <EOS>