Fingerprint recognition device and display device and mobile terminal using fingerprint recognition device

Fingerprint recognition device and display device and mobile terminal using fingerprint recognition device

A fingerprint recognition system may comprise: a display panel configured to display an image on a screen; a light source device configured to irradiate light onto a transparent substrate disposed on the screen of the display panel; an image sensor configured to obtain a fingerprint image with light...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Cho, Jiho, Han, Manhyeop
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
HANDLING RECORD CARRIERS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
SEMICONDUCTOR DEVICES
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A fingerprint recognition system may comprise: a display panel configured to display an image on a screen; a light source device configured to irradiate light onto a transparent substrate disposed on the screen of the display panel; an image sensor configured to obtain a fingerprint image with light reflected from a fingerprint contacting the transparent substrate on the screen; and an image sensor controller configured to control an exposure time of the image sensor to obtain the fingerprint image based on a contrast ratio of the fingerprint image.