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US 12,003,906 B2Granted
Vibration-generating apparatus and vehicle including the same
AssigneeLG Display Co., Ltd.
InventorsSungtae Lee, KwanHo Park
Life of this patent
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Abstract
A vibration-generating apparatus, includes: a microphone apparatus disposed at an object including a plurality of regions, the microphone apparatus being configured to receive noise near the object, a sound processing circuit configured to: receive a sound source signal and a noise signal corresponding to the noise, generate a noise removal signal having an antiphase of the noise signal, and generate a vibration driving signal, based on the sound source signal and the noise removal signal, and a vibration apparatus disposed at the object to vibrate based on the vibration driving signal to vibrate the object.
Claims33
A vibration-generating apparatus, comprising:
- a microphone apparatus disposed at an object including a plurality of regions, the microphone apparatus being configured to receive noise near the object;
- a sound processing circuit configured to:
- receive a sound source signal and a noise signal corresponding to the noise;
- generate a noise removal signal having an antiphase of the noise signal;
- and
- generate a vibration driving signal, based on the sound source signal and the noise removal signal;
- and
- a vibration apparatus disposed at the object to vibrate based on the vibration driving signal to vibrate the object, the vibration apparatus including one or more vibration generators disposed over at least one of the plurality of regions and configured to vibrate based on the vibration driving signal,
- wherein a vibration generator among the one or more vibration generators includes:
- one or more vibration structures configured to vibrate based on the vibration driving signal, a vibration structure among the one or more vibration structures comprising:
- a plurality of first portions including an inorganic material and spaced apart from each other in a plan view;
- and
- a second portion including an organic material disposed between adjacent first portions among the plurality of first portions in the plan view;
- a first power supply line at a first surface of the vibration structure, the first power supply line overlapping the vibration structure in the plan view;
- and
- a second power supply line at a second surface of the vibration structure opposite the first surface, the second power line overlapping the vibration structure without overlapping the first power supply line in the plan view,
- wherein at least one of the first power supply line and the second power supply line is configured to supply the vibration driving signal to the vibration structure,
- wherein the second portion fills a space between the adjacent first portions without overlapping the adjacent first portions in the plan view, and
- wherein the plurality of first portions comprises a piezoelectric material, and the second portion comprises a ductile material.
16 more elements
A vibration-generating apparatus, comprising:
- a microphone apparatus disposed at an object including a first region, a second region, a third region, and a fourth region, the microphone apparatus being configured to receive noise near the object;
- a sound processing circuit configured to:
- receive a sound source signal and a noise signal corresponding to the noise;
- generate a noise removal signal having an antiphase of the noise signal;
- and
- generate a vibration driving signal, based on the sound source signal and the noise removal signal;
- and
- one or more vibration generators configured to vibrate based on the vibration driving signal to vibrate one or more of the third region and the fourth region,
- wherein a vibration generator among the one or more vibration generators includes:
- one or more vibration structures configured to vibrate based on the vibration driving signal, a vibration structure among the one or more vibration structures comprising:
- a plurality of first portions including an inorganic material and spaced apart from each other in a plan view;
- and
- a second portion including an organic material disposed between adjacent first portions among the plurality of first portions in the plan view;
- a first power supply line at a first surface of the vibration structure, the first power supply line overlapping the vibration structure in the plan view;
- and
- a second power supply line at a second surface of the vibration structure opposite the first surface, the second power line overlapping the vibration structure without overlapping the first power supply line in the plan view,
- wherein at least one of the first power supply line and the second power supply line is configured to supply the vibration driving signal to the vibration structure, and
- wherein the plurality of first portions comprises a piezoelectric material, and the second portion comprises a ductile material.
15 more elements
Dependencies are inferred from the claim text.