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US 11,770,645 B2Granted
Display apparatus
AssigneeLG Display Co., Ltd.
InventorsTaeheon Kim, Chiwan Kim, Sung-Eui Shin, YongWoo Lee, Kyungyeol Ryu, YuSeon Kho, YongGyoon Jang
Life of this patent
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Abstract
A display apparatus includes a display panel configured to display an image and a sound generating device on a rear surface of the display panel. The sound generating device is configured to vibrate the display panel to generate sound. The sound generating device includes a first structure and a first passivation layer on one side of the first structure, at least a portion of the first passivation layer having a non-flat shape.
Claims32
A sound generating device, comprising:
- a first structure;
- and
- a first passivation layer on one side of the first structure,
- wherein the first structure comprises:
- a plurality of inorganic material parts, and
- an organic material part between adjacent inorganic material parts among the plurality of inorganic material parts.
3 more elements
A sound generating device, comprising:
- a first structure comprising:
- a plurality of first parts having a piezoelectric characteristic;
- and
- a second part between adjacent first parts among the plurality of first parts to have flexibility;
- and
- a passivation layer over or under the first structure,
- wherein each of the plurality of first parts comprises an inorganic material, and
- wherein the second part comprises an organic material.
5 more elements
Dependencies are inferred from the claim text.