Touch keys and fingerprint identification device for implementing the method and a terminal device

The present disclosure relates to touch buttons and the fingerprint identification device for implementing the method and a terminal device, the fingerprint recognition sensor comprises a plurality of sub-sensors; fingerprint recognition sensor, when the signal for the multi-in switch is open, the respective sub-sensor for detecting the generated respectively transmission to the fingerprint identification circuit, when the switch is closed multidentate, by closing switch the respective sub-multiple sensor detects a touch signal generated combined signal is transmitted to the touch key circuit; fingerprint identification circuit for the sub-sensor for detecting the signal generated by the respective processes; touch key circuits, whether a touch operation to the touch signal is determined in accordance with the combined resultant. The present disclosure can be used to achieve a common fingerprint sensor and fingerprint touch key function, and the outer member fingerprint touch key functions integrated into one member, increase the integration of the electronic device, increasing the convenience of user operation.