FINGERPRINT SENSOR

A fingerprint sensor includes: a panel including a sensor array including first electrodes extended in a first direction and second electrodes extended in a second direction intersecting with the first direction; and a forged fingerprint analyzer configured to provide signals having different freque...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HWANG Sang Hoon, PARK Tah Joon
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A fingerprint sensor includes: a panel including a sensor array including first electrodes extended in a first direction and second electrodes extended in a second direction intersecting with the first direction; and a forged fingerprint analyzer configured to provide signals having different frequencies to a first electrode group and a second electrode group, and to measure an impedance between the first electrode group and the second electrode group to determine whether a fingerprint applied to the sensor array is forged, wherein the first electrode group includes a portion of a plurality of electrodes among the first electrodes or the second electrodes, and the second electrode group includes another portion of the plurality of electrodes.