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. 11, 2025
Filed:
Dec. 22, 2021
Lg Display Co., Ltd., Seoul, KR;
Korea University Research and Business Foundation, Seoul, KR;
Yongwoo Lee, Paju-si, KR;
Chiwan Kim, Paju-si, KR;
Yong-Su Ham, Paju-si, KR;
Yuseon Kho, Paju-si, KR;
Seunghyun Sung, Paju-si, KR;
Sahn Nahm, Seoul, KR;
Dae-Su Kim, Seoul, KR;
Su-Hwan Go, Seoul, KR;
Jae-Min Eum, Seoul, KR;
Ho-Sung Shin, Seoul, KR;
LG DISPLAY CO., LTD., Seoul, KR;
KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, Seoul, KR;
Abstract
Compositions are disclosed that comprise a piezoelectric material according to Chemical Formula 1: (1−y)(NaK)(Nb,Sb)−ySrZrO+n mol % CuO, wherein 0.01≤y≤0.10, 0.4≤a≤0.6, 0≤x≤0.06, and 0.5≤n≤1.5. The compositions can further comprise a first material, and a second material surrounded by the first material. A piezoelectric device is also described, which includes a piezoelectric device layer including a composition of Chemical Formula 1, and having a first material layer and a second material layer surrounded by the first material layer; a first electrode part disposed on a first surface of the piezoelectric device layer; and a second electrode part disposed on a second surface facing the first surface.