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:
Feb. 23, 2021
Filed:
Jul. 17, 2017
Boe Technology Group Co., Ltd., Beijing, CN;
Shengji Yang, Beijing, CN;
Xue Dong, Beijing, CN;
Hailin Xue, Beijing, CN;
Xiaochuan Chen, Beijing, CN;
Haisheng Wang, Beijing, CN;
Yingming Liu, Beijing, CN;
Lei Wang, Beijing, CN;
Xiaoliang Ding, Beijing, CN;
Rui Xu, Beijing, CN;
Pengcheng Lu, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
Embodiments of the disclosure relate to a fingerprint identification device, a touch display panel, and a method for driving a fingerprint identification device. The fingerprint identification device for identification of a fingerprint of a finger, includes: at least one resonant chamber; and at least one ultrasonic generating and detecting device provided opposite to the at least one resonant chamber; each of the at least one ultrasonic generating and detecting device is configured to generate initial ultrasonic signals having a frequency which is identical to an initial intrinsic frequency of the resonant chamber in a condition of being untouched by the finger, and each of the at least one ultrasonic generating and detecting device is also configured to convert the ultrasonic signals reflected by ridges and valleys of the finger into electrical signals, and to determine information on pattern of the finger depending on the electrical signals.