ULTRASONIC FINGERPRINT SENSOR FOR UNDER-DISPLAY APPLICATIONS

Disclosed are methods, devices, apparatuses, and systems for an under-display ultrasonic fingerprint sensor. A display device may include a platen, a display underlying the platen, and an ultrasonic fingerprint sensor underlying the display, where the ultrasonic fingerprint sensor is configured to t...

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Bibliographic Details
Main Authors KAO, Tsongming, FENNELL, Leonard Eugene, STROHMANN, Jessica Liu, BUCHAN, Nicholas Ian, BURNS, David William, SAMMOURA, Firas, GANTI, Suryaprakash, LU, Yipeng, DJORDJEV, Kostadin Dimitrov, TSENG, Chin-Jen, PANCHAWAGH, Hrishikesh Vijaykumar, BADGE, Ila Ravindra
Format Patent
LanguageEnglish
French
German
Published 06.05.2020
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:Disclosed are methods, devices, apparatuses, and systems for an under-display ultrasonic fingerprint sensor. A display device may include a platen, a display underlying the platen, and an ultrasonic fingerprint sensor underlying the display, where the ultrasonic fingerprint sensor is configured to transmit and receive ultrasonic waves via an acoustic path through the platen and the display. A light-blocking layer and/or an electrical shielding layer may be provided between the ultrasonic fingerprint sensor and the display, where the light-blocking layer and/or the electrical shielding layer are in the acoustic path. A mechanical stress isolation layer may be provided between the ultrasonic fingerprint sensor and the display, where the mechanical stress isolation layer is in the acoustic path.
Bibliography:Application Number: EP20180738087