公开(公告)号：US20220312115A1

公开(公告)日：2022-09-29

申请号：US17301061

申请日：2021-03-23

Applicant: QUALCOMM Incorporated

Inventor： Bernard HERRERA ,  Jessica Liu STROHMANN ,  Changting XU ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Kostadin Dimitrov DJORDJEV

IPC: H04R3/12 ,  G06F3/043 ,  G06F3/041 ,  H04R1/40 ,  H04R17/00 ,  H04R1/02 ,  G10K11/178

Abstract: Some disclosed devices may include a display stack, a cover layer proximate a first side of the display stack and a segmented transducer array proximate a second side of the display stack. The segmented transducer array may include a plurality of separate transducer segments. Each of the separate transducer segments may include a piezoelectric layer and a thin-film transistor (TFT) layer. The separate transducer segments may include transmitter transducer segments and receiver transducer segments. In some examples, a spacing between at least a first plurality of the transmitter transducer segments may correspond to a display stack and cover layer oscillation mode frequency in a range from 20 Hz to 20 kHz, from 15 kHz to 200 kHz or from 20 kHz to 400 kHz.