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:
Nov. 21, 2023
Filed:
Apr. 26, 2020
Boe Technology Group Co., Ltd., Beijing, CN;
Yingming Liu, Beijing, CN;
Xue Dong, Beijing, CN;
Haisheng Wang, Beijing, CN;
Xiaoliang Ding, Beijing, CN;
Lei Wang, Beijing, CN;
Pengpeng Wang, Beijing, CN;
Changfeng Li, Beijing, CN;
Peixiao Li, Beijing, CN;
Chenyang Zhang, Beijing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
The present disclosure provides an ultrasonic sensor, a display panel and a display apparatus. The ultrasonic sensor includes: a bearing substrate; an ultrasonic emission structure on the bearing substrate, wherein the ultrasonic emission structure includes a first piezoelectric film layer; and an ultrasonic receiving structure on the bearing substrate, wherein the ultrasonic receiving structure includes a second piezoelectric film layer. The piezoelectric constant of the first piezoelectric film layer is greater than the piezoelectric constant of the second piezoelectric film layer.