公开(公告)号：US20250037498A1

公开(公告)日：2025-01-30

申请号：US18919355

申请日：2024-10-17

Applicant: QUALCOMM Incorporated

Inventor： Hrishikesh Vijaykumar PANCHAWAGH ,  Ila Ravindra BADGE ,  Yipeng LU ,  Kostadin Dimitrov DJORDJEV ,  Suryaprakash GANTI ,  Chin-Jen TSENG ,  Nicholas BUCHAN ,  Tsongming KAO ,  Leonard Eugene FENNELL ,  Firas SAMMOURA ,  Jessica Liu STROHMANN ,  David William BURNS

IPC: G06V40/13 ,  B06B1/06 ,  G01S7/52 ,  G01S15/89 ,  H10K59/00 ,  H10K59/65 ,  H10K77/10 ,  H10K102/00

Abstract: 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.