公开(公告)号：US09785822B2

公开(公告)日：2017-10-10

申请号：US15147502

申请日：2016-05-05

Applicant: SUPERC-TOUCH CORPORATION

Inventor： Hsiang-Yu Lee ,  Shang Chin ,  Ping-Tsun Lin

IPC: G06K9/00 ,  H05K1/02 ,  H03K17/96

CPC classification number: G06K9/0002 ,  H03K17/9622 ,  H03K2217/96023 ,  H03K2217/960765 ,  H05K1/0274 ,  H05K1/0296

Abstract: A biometric recognition apparatus with reflection-shielding electrode includes a substrate, a sensing electrode layer arranged on one side of the substrate, the sensing electrode layer including a plurality of sensing electrodes and at least one suppressing electrode. The biometric recognition apparatus further includes a plurality of selection switches and conductive wires, at least a part of the selection switches and the conductive wires are electrically connected to the sensing electrodes. The biometric recognition apparatus further includes a reflection-shielding electrode layer with at least one reflection-shielding electrode and arranged on one side of the sensing electrode layer. By incorporating the reflection-shielding electrode and the suppressing electrode, the sensing sensibility and signal to noise ration can be enhanced, thus increasing the sensing distance between sensing electrode and user finger.