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US 2021/0176567 A1Published application
Flexible vibration module and display apparatus including the same
AssigneeLG Display Co., Ltd.
InventorsYongWoo LEE, Yong-Su HAM, Taeheon Kim, Sung-Eui SHIN
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Abstract
A flexible vibration module is disclosed. The flexible vibration module includes a piezoelectric composite layer, including: a plurality of piezoelectric portions each having a piezoelectric characteristic, where at least two of the plurality of piezoelectric portions have different sizes; and a flexible portion between the plurality of piezoelectric portions.
Claims22
A vibration module, comprising:
- a piezoelectric composite layer, including:
- a plurality of piezoelectric portions each having a piezoelectric characteristic, and a flexible portion between the plurality of piezoelectric portions,
- wherein the plurality of piezoelectric portions is spaced apart from one another along a first direction, and
- wherein at least two of the plurality of piezoelectric portions have different lengths along a second direction crossing to the first direction.
1 more element
A vibration module, comprising:
- a piezoelectric composite layer, including:
- a plurality of piezoelectric portions each having a piezoelectric characteristic, the plurality of piezoelectric portions being spaced apart from one another along a first direction;
- and
- a flexible portion between the plurality of piezoelectric portions;
- a first electrode on a first surface the plurality of piezoelectric portions and a first surface of the flexible portion;
- and
- a second electrode on a second surface of the plurality of piezoelectric portions and a second surface of the flexible portion,
- wherein each of the first surface and the second surface is configured to have a plane surface structure,
- wherein the piezoelectric composite layer has a plurality of natural resonance frequencies, and
- wherein at least two of the plurality of piezoelectric portions have different lengths along a second direction crossing to the first direction.
7 more elements
An apparatus, comprising:
- a vibration module, including:
- a piezoelectric composite layer, including:
- a plurality of piezoelectric portions each having a piezoelectric characteristic, the plurality of piezoelectric portions being spaced apart from one another along a first direction;
- and
- a flexible portion between the plurality of piezoelectric portions;
- a first electrode on a first surface of the piezoelectric portions and a first surface of the flexible portion;
- and
- a second electrode on a second surface of the piezoelectric portions and a second surface of the flexible portion;
- and
- a vibration plate configured to vibrate according to a vibration of the vibration module,
- wherein each of the first surface and the second surface is configured to have a plane surface structure, and
- wherein at least two of the plurality of piezoelectric portions have different lengths along a second direction crossing to the first direction.
9 more elements
Dependencies are inferred from the claim text.