The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 2021
Filed:
Jul. 03, 2019
Qualcomm Incorporated, San Diego, CA (US);
Hrishikesh Vijaykumar Panchawagh, Cupertino, CA (US);
Nicholas Ian Buchan, San Jose, CA (US);
Kostadin Dimitrov Djordjev, Los Gatos, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Techniques described herein address these and other issues by providing an under-display sensor capable of providing fingerprint scanning over an entire display using optical and/or ultrasonic means. To do so, the sensor comprises an array of pixels, where each can pixel comprises a piezoelectric sensor element and a diode capable of being used as a photodetector during a light-sensing mode, and as a peak detector during a pressure-sensing mode. The sensor may further comprise a piezoelectric layer and one or more electrodes, which can generate a pressure wave during the pressure sensing mode.