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公开(公告)号：US10764692B2
公开(公告)日：2020-09-01
申请号：US16553687
申请日：2019-08-28
Applicant: LG Display Co., Ltd.
Inventor： KiSung Lim , Jaekyung Kang , DongRyul Jung , Sujin Chang
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.
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