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:
May. 23, 2023
Filed:
Sep. 27, 2019
Boe Technology Group Co., Ltd., Beijing, CN;
Yingming Liu, Beijing, CN;
Haisheng Wang, Beijing, CN;
Yanling Han, Beijing, CN;
Yuzhen Guo, Beijing, CN;
Lijun Zhao, Beijing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
An ultrasonic fingerprint sensor apparatus is provided. The ultrasonic fingerprint sensor apparatus includes an array of a plurality of ultrasonic sensors on a base substrate. A respective one of the plurality of ultrasonic sensors includes a first electrode, a second electrode, and a piezoelectric layer between the first electrode and the second electrode. The ultrasonic fingerprint sensor apparatus further includes a plurality of bias lines respectively electrically connected to a plurality of columns of ultrasonic sensors in the array of the plurality of ultrasonic sensors. The ultrasonic fingerprint sensor apparatus further includes a polarization electrode; a first lead line electrically connected to the polarization electrode; and a second lead line electrically connected to the plurality of bias lines. The first lead line and the second lead line are in a peripheral region of the ultrasonic fingerprint sensor apparatus.