FINGERPRINT SENSING METHOD, FINGERPRINT SENSOR, AND DISPLAY DEVICE INCLUDING THE SAME

A fingerprint sensor includes a substrate, a light blocking layer that is on a first surface of the substrate and includes openings in a light blocking mask, and a sensor layer that is on a second surface of the substrate and includes photo sensors. A fingerprint sensing method of the fingerprint se...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MOON, Seung Hyun, YANG, Dong Wook, HWANG, Hee Chul, WOO, Deok Hwa, LEE, Young Eun, LEE, Hyun Dae
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A fingerprint sensor includes a substrate, a light blocking layer that is on a first surface of the substrate and includes openings in a light blocking mask, and a sensor layer that is on a second surface of the substrate and includes photo sensors. A fingerprint sensing method of the fingerprint sensor includes: storing a calibration image; generating an original image, based on sensing signals from the photo sensors; performing calibration on the original image by utilizing the calibration image; and detecting a fingerprint, based on the calibrated image. The calibration image is generated by synthetizing valid regions extracted from an original calibration image corresponding to the original image.