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:
Sep. 01, 2020
Filed:
Aug. 28, 2019
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventors:
KiSung Lim, Paju-si, KR;
Jaekyung Kang, Paju-si, KR;
DongRyul Jung, Paju-si, KR;
Sujin Chang, Paju-si, KR;
Assignee:
LG Display Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 17/00 (2006.01); H04R 1/02 (2006.01); H04R 1/28 (2006.01);
U.S. Cl.
CPC ...
H04R 17/00 (2013.01); H04R 1/028 (2013.01); H04R 1/2888 (2013.01); H04R 2400/03 (2013.01); H04R 2499/15 (2013.01);
Abstract
A piezoelectric device and a display apparatus including the same are provided. A piezoelectric device includes: a first piezoelectric unit including a vibration-generating layer configured to vibrate at an input frequency based on a sound signal corresponding to the input frequency, and a second piezoelectric unit including: an air gap in the first piezoelectric unit, the air gap having a certain volume, and an air path connecting the air gap to an outer portion of the vibration-generating layer, the air path being configured to output a vibration.