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:
Aug. 25, 2026
Filed:
Jun. 23, 2021
Beijing Boe Technology Development Co., Ltd., Beijing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A piezoelectric material and a piezoelectric device. The piezoelectric material includes: a matrix, wherein a crystal structure of the matrix is an ABO-type perovskite structure, the perovskite structure includes a rhombohedral structure and a tetragonal structure that coexist, and the matrix is near a morphotropic phase boundary; and a doping element, wherein the doping element is for replacing an A-site element or a B-site element in the perovskite structure, or filling a space in the perovskite structure, and the doping element is for increasing a difference between a lattice constant of the rhombohedral structure and a lattice constant of the tetragonal structure.