Vibration generating device and vehicle comprising same

Abstract

The present application relates to a vibration generating apparatus and a vehicle including the same. A vibration generating apparatus includes a microphone apparatus disposed at an object including a plurality of regions, the microphone apparatus configured to receive a noise near the object; a sound processing circuit configured to receive a sound source signal and a noise signal corresponding to the noise, to generate a noise removal signal having an opposite phase of the noise signal, and to 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 the object based on the vibration driving signal.

Description

Technical Field

[0001] This disclosure relates to vibration-generating equipment and vehicles including such equipment. Background Technology

[0002] Navigation devices, in-vehicle audio systems, digital multimedia broadcasting (DMB) equipment, the driver's smartphone, or various wireless devices are connected to the vehicle's speakers and transmit various information as sound to the occupants through the speakers. To this end, the in-vehicle multimedia equipment outputs all sound input from navigation devices, in-vehicle audio systems, smartphones, or microphones through the speakers installed in the vehicle to provide information to all occupants. Summary of the Invention

[0003] In this technology, all audio information is output through the vehicle's speakers. Therefore, when the driver is making a call using a multimedia device, passengers may hear content that only the driver should hear, leading to an exposure of the driver's privacy. Furthermore, traffic accidents may occur when the driver cannot accurately recognize voice guidance due to cabin noise.

[0004] Therefore, the inventors have recognized the aforementioned problems and have conducted various experiments to deliver sound to targets that want to hear or should hear sound. Based on these experiments, the inventors have invented a vibration generating device with a novel structure and a vehicle including the vibration generating device, which can deliver sound to targets that want to hear or should hear sound.

[0005] Therefore, this disclosure aims to provide a vibration generating device and a vehicle including the vibration generating device, which substantially eliminates one or more problems caused by the limitations and disadvantages of related technologies.

[0006] One aspect of this disclosure aims to provide a vibration generating device and a vehicle including the vibration generating device, which can provide sound to an object that wants to hear a sound or should hear a sound.

[0007] Another aspect of this disclosure aims to provide a vibration generating device and a vehicle including the vibration generating device, which can provide high-quality sound to a target that wants to hear or should hear sound.

[0008] Another aspect of this disclosure aims to provide a vibration generating device and a vehicle including the vibration generating device, which can deliver sound to a target that wants to hear or should hear the sound via bone conduction.

[0009] Additional features and aspects will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practice of the inventive concept provided herein. Other features and aspects of the inventive concept may be realized and obtained by means of structures specifically pointed out in the written description or from which they may be derived, as well as by the claims and drawings thereof.

[0010] To achieve these and other aspects of the inventive concept, as implemented and broadly described herein, a vibration generating device includes: a microphone device disposed at an object comprising multiple regions, the microphone device 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 opposite phase to the noise signal, and generate a vibration driving signal based on the sound source signal and the noise removal signal; and a vibration device disposed at the object to vibrate the object based on the vibration driving signal.

[0011] In another aspect, a vibration generating device includes: a microphone device disposed at an object comprising a first region, a second region, a third region, and a fourth region, the microphone device 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 opposite phase to 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 cause one or more of the third and fourth regions to vibrate.

[0012] In another aspect, a vehicle includes: a seat including a headrest having multiple areas; and a vibration generating device disposed at the headrest, the vibration generating device including a microphone device configured to receive noise near the headrest, 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 opposite phase to the noise signal, and generate a vibration driving signal based on the sound source signal and the noise removal signal, and a vibration device configured to vibrate the headrest based on the vibration driving signal.

[0013] In another aspect, a vehicle includes: a seat including a headrest having a first region to a fourth region; and a vibration generating device disposed at the headrest, the vibration generating device including a microphone device disposed at the headrest, the microphone device being configured to receive noise near the headrest, a sound processing circuit being configured to receive a sound source signal and a noise signal corresponding to the noise, generate a noise removal signal having an opposite phase to 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 being configured to vibrate based on the vibration driving signal to cause one or more of the third region and the fourth region to vibrate.

[0014] The vibration generating device according to embodiments of the present disclosure and the vehicle including the vibration generating device can provide sound to a target that wants to hear sound or should hear sound, and can provide high-quality sound.

[0015] The vibration generating device according to embodiments of the present disclosure and the vehicle including the vibration generating device can provide sound to a target among the occupants (e.g., the driver and passengers) who want to hear or should hear sound, thereby protecting privacy.

[0016] The vibration generating device according to the embodiments of this disclosure and the vehicle including the vibration generating device can cancel out noise generated for the user, thereby enhancing the noise reduction effect corresponding to the user and providing high-quality sound.

[0017] The vibration generating device according to embodiments of the present disclosure and the vehicle including the vibration generating device can provide guidance broadcasts or alarms via bone conduction, thereby enabling the driver to accurately identify guidance broadcasts or alarms regardless of any in-vehicle noise.

[0018] The vibration generating device according to embodiments of the present disclosure and the vehicle including the vibration generating device can provide sound through bone conduction, thereby enabling a deaf driver to drive the vehicle safely.

[0019] Other systems, methods, features, and advantages will be or will become apparent to those skilled in the art upon review of the following drawings and detailed description. All such additional systems, methods, features, and advantages are intended to be included in this specification, within the scope of this disclosure, and protected by the appended claims. Nothing in this section should be construed as limiting these claims. Further aspects and advantages may be discussed below in conjunction with embodiments of this disclosure. It will be understood that the foregoing general description of this disclosure and the following detailed description are exemplary and explanatory, and may be intended to provide a further explanation of the claimed disclosure.

[0020] Postscript:

[0021] Appendix 1. A vibration generating device, the vibration generating device comprising:

[0022] A microphone device disposed at an object comprising multiple areas, the microphone device being configured to receive noise in the vicinity of the object;

[0023] The sound processing circuit is configured to:

[0024] Receive the sound source signal and the noise signal corresponding to the noise;

[0025] Generate a noise removal signal having the opposite phase of the noise signal; and

[0026] A vibration drive signal is generated based on the sound source signal and the noise removal signal; and

[0027] A vibration device disposed at the object to vibrate based on the vibration drive signal to cause the object to vibrate.

[0028] Note 2. The vibration generating device according to Note 1, wherein the object is configured to vibrate to generate a sound corresponding to the sound source signal.

[0029] Note 3. The vibration generating device according to Note 2, wherein the generated sound is provided to the user via bone conduction.

[0030] Appendix 4. The vibration generating device according to Appendix 1, wherein the sound processing circuit comprises:

[0031] The input is configured to receive the sound source signal and the noise signal;

[0032] The signal processor is configured to:

[0033] Receive the noise signal; and

[0034] The noise removal signal is generated based on the noise signal; and

[0035] A drive signal generation unit is configured to generate the vibration drive signal based on the sound source signal and the noise removal signal.

[0036] Appendix 5. The vibration generating device according to Appendix 1, wherein,

[0037] The microphone device is also configured to receive:

[0038] The first noise near the first region in the plurality of regions; and

[0039] Second noise near the second region in the plurality of regions, and / or

[0040] The sound processing circuit is also configured to generate:

[0041] A first noise removal signal having an opposite phase to a first noise signal corresponding to the first noise; and

[0042] A second noise removal signal having the opposite phase to the second noise signal corresponding to the second noise.

[0043] Note 6. The vibration generating device according to Note 5, wherein the sound processing circuit is further configured to combine the sound source signal, the first noise removal signal and the second noise removal signal to generate the vibration driving signal.

[0044] Note 7. The vibration generating device according to Note 5, wherein the sound processing circuit is further configured as follows:

[0045] The sound source signal is combined with the first noise removal signal to generate a first vibration drive signal, and

[0046] The sound source signal is combined with the second noise removal signal to generate a second vibration drive signal.

[0047] Note 8. The vibration generating device according to Note 6,

[0048] The vibration device includes a vibration generator, which is positioned above a third region among the plurality of regions, or above a fourth region among the plurality of regions, or above both the third and fourth regions among the plurality of regions.

[0049] The sound processing circuit is also configured to provide the vibration drive signal to the vibration generator.

[0050] Note 9. The vibration generating device according to Note 8,

[0051] The vibration generator comprises one or more vibration structures, and

[0052] The one or more vibration structures are configured to be disposed above the third region, the fourth region, or both the third region and the fourth region.

[0053] Note 10. The vibration generating device according to Note 9, wherein the vibration generator comprises a first portion containing inorganic material and a second portion containing organic material disposed between adjacent first portions.

[0054] Note 11. The vibration generating device according to Note 10, wherein the first portion and the second portion are arranged alternately along a first direction and / or a second direction intersecting the first direction.

[0055] Note 12. The vibration generating device according to Note 11, wherein the width of the second portion gradually decreases in the direction from the central portion of the vibration device to both sides.

[0056] Note 13. The vibration generating device according to Note 10, wherein the first part has a linear, quadrangular, circular or triangular shape.

[0057] Note 14. The vibration generating device according to Note 8,

[0058] Wherein, the vibration generator includes one or more vibration structures, and / or

[0059] The one or more vibration structures include one or more first vibration structures disposed in the third region and one or more second vibration structures disposed in the fourth region.

[0060] Note 15. The vibration generating device according to Note 14, wherein each of the one or more first vibration structures and the one or more second vibration structures includes a first portion comprising an inorganic material and a second portion comprising an organic material disposed between adjacent first portions.

[0061] Note 16. The vibration generating device according to Note 7,

[0062] The vibration device includes one or more first vibration generators disposed in a third region of the plurality of regions and one or more second vibration generators disposed in a fourth region of the plurality of regions.

[0063] The sound processing circuit is further configured to provide the first vibration drive signal to the one or more first vibration generators and the second vibration drive signal to the one or more second vibration generators.

[0064] Note 17. The vibration generating device according to Note 16,

[0065] Wherein, the one or more first vibration generators include one or more first vibration structures, and

[0066] The one or more second vibration generators include one or more second vibration structures.

[0067] Note 18. The vibration generating device according to Note 17,

[0068] The one or more first vibrating structures include a first part comprising an inorganic material and a second part comprising an organic material disposed between adjacent first parts.

[0069] The one or more second vibration structures include a first part containing inorganic material and a second part containing organic material disposed between adjacent first parts.

[0070] Note 19. The vibration generating device according to Note 1, wherein the object includes one or more of a vehicle seat, a train seat, a massage chair, a table and chair, and a head protection device.

[0071] Appendix 20. A vibration generating device, the vibration generating device comprising:

[0072] A microphone device disposed at an object comprising a first region, a second region, a third region, and a fourth region, the microphone device being configured to receive noise in the vicinity of the object;

[0073] The sound processing circuit is configured to:

[0074] Receive the sound source signal and the noise signal corresponding to the noise;

[0075] Generate a noise removal signal having the opposite phase of the noise signal; and

[0076] A vibration drive signal is generated based on the sound source signal and the noise removal signal; and

[0077] One or more vibration generators are configured to vibrate based on the vibration drive signal to cause one or more of the third and fourth regions to vibrate.

[0078] Note 21. The vibration generating device according to Note 20, wherein one or more of the third region and the fourth region are configured to vibrate to generate a sound corresponding to the sound source signal.

[0079] Note 22. The vibration generating device according to Note 21, wherein the generated sound is provided to the user via bone conduction.

[0080] Note 23. The vibration generating device according to Note 20, wherein the sound processing circuit comprises:

[0081] The input is configured to receive the sound source signal and the noise signal;

[0082] The signal processor is configured to:

[0083] Receive the noise signal; and

[0084] The noise removal signal is generated based on the noise signal; and

[0085] A drive signal generation unit is configured to generate the vibration drive signal based on the sound source signal and the noise removal signal.

[0086] Note 24. The vibration generating device according to Note 20, wherein the one or more vibration generators include one or more first vibration structures.

[0087] Note 25. The vibration generating device according to Note 20,

[0088] Wherein, the one or more vibration generators include one vibration generator disposed above the third region, the fourth region, or both the third region and the fourth region, and

[0089] The sound processing circuit is also configured to provide the vibration drive signal to the vibration generator.

[0090] Note 26. The vibration generating device according to Note 25, wherein the sound processing circuit is further configured to provide the vibration driving signal based on the sound source signal, a first noise removal signal having a first noise in opposite phase to the first noise near the first region, and a second noise removal signal having a second noise in opposite phase to the second noise near the second region.

[0091] Note 27. The vibration generating device according to Note 25, wherein the vibration generator includes a vibration structure disposed above the third region, the fourth region, or both the third region and the fourth region.

[0092] Note 28. The vibration generating device according to Note 25, wherein the vibration generator comprises:

[0093] One or more first vibrating structures are disposed in the third region, and

[0094] One or more second vibration structures are installed in the fourth region.

[0095] Note 29. The vibration generating device according to Note 20,

[0096] The one or more vibration generators include one or more first vibration generators disposed in the third region and one or more second vibration generators disposed in the fourth region.

[0097] The sound processing circuit is further configured to provide a first vibration drive signal to the one or more first vibration generators and to provide a second vibration drive signal to the one or more second vibration generators.

[0098] Note 30. The vibration generating device according to Note 29, wherein the sound processing circuit is further configured to provide the first vibration driving signal based on the sound source signal and a first noise removal signal having a first noise in the opposite phase near the first region, and to provide the second vibration driving signal based on the sound source signal and a second noise removal signal having a second noise in the opposite phase near the second region.

[0099] Note 31. The vibration generating device according to Note 29,

[0100] Wherein, the one or more first vibration generators include one or more first vibration structures, and

[0101] The one or more second vibration generators include at least one second vibration structure.

[0102] Note 32. The vibration generating device according to Note 24, wherein the one or more first vibration structures comprise a first portion containing inorganic material and a second portion containing organic material disposed between adjacent first portions.

[0103] Note 33. The vibration generating device according to Note 32, wherein the first portion and the second portion are arranged alternately along a first direction and / or a second direction intersecting the first direction.

[0104] Note 34. The vibration generating device according to Note 33, wherein the width of the second portion gradually decreases in the direction from the central portion of the vibration generator to both sides.

[0105] Note 35. The vibration generating device according to Note 32, wherein the first part has a linear, quadrangular, circular or triangular shape.

[0106] Note 36. The vibration generating device according to Note 32,

[0107] The first part has piezoelectric properties, and

[0108] The second part has flexible properties.

[0109] Note 37. The vibration generating device according to Note 20, wherein the object includes one or more of a vehicle seat, a train seat, a massage chair, a table and chair, and a head protection device.

[0110] Note 38. A vehicle comprising:

[0111] A seat including a headrest, the headrest comprising multiple areas; and

[0112] Vibration generating device according to any one of the appendices 1 to 18

[0113] The headrest is the object in question.

[0114] Note 39. The vehicle according to Note 38, wherein the plurality of areas includes:

[0115] The first support area is the left region of the central area of ​​the headrest;

[0116] The second support area is the right region of the central area of ​​the headrest;

[0117] A first peripheral area, wherein the first peripheral area is located to the left of the first support area; and

[0118] The second peripheral area is located to the right of the second support area.

[0119] Note 40. The vehicle according to Note 39, wherein the vibration device is configured to vibrate based on the vibration drive signal to cause one or more of the first support region and the second support region to vibrate.

[0120] Note 41. The vehicle according to Note 38, wherein the seat further includes a backrest and a saddle, and the sound processing circuit is disposed in any one or more of the headrest, the backrest, and the saddle.

[0121] Appendix 42. A vehicle comprising:

[0122] A seat including a headrest, the headrest comprising a first region to a fourth region; and

[0123] Vibration generating device according to any one of notes 20 to 36

[0124] The headrest is the object in question.

[0125] Note 43. The vehicle described in Note 42, wherein,

[0126] The first region is the left periphery of the headrest;

[0127] The second area is the right periphery of the headrest;

[0128] The third region is the left central region of the headrest; and

[0129] The fourth region is the right central region of the headrest.

[0130] Note 44. The vehicle according to Note 42, wherein the seat further includes a backrest and a saddle, and the sound processing circuit is disposed in any one or more of the headrest, the backrest, and the saddle. Attached Figure Description

[0131] The accompanying drawings may be included to provide a further understanding of the present disclosure and are incorporated into and constitute a part of the present disclosure. The drawings illustrate embodiments of the present disclosure and, together with the description, serve to explain the various principles of the present disclosure.

[0132] Figure 1 An example of a vibration generating device according to an embodiment of the present disclosure is shown.

[0133] Figure 2 A vibration device according to an embodiment of the present disclosure is illustrated.

[0134] Figure 3 It is along Figure 2 The cross-sectional view taken by line I-I' is shown.

[0135] Figures 4A to 4F Examples Figure 3 The vibration structure shown.

[0136] Figure 5 Examples Figure 1 The sound processing circuit.

[0137] Figure 6 A vibration generating device according to another embodiment of the present disclosure is illustrated.

[0138] Figure 7 Examples Figure 6 Vibration equipment.

[0139] Figure 8 It is along Figure 7 The cross-sectional view taken from line IⅠ-IⅠ' is shown.

[0140] Figure 9 A vibration generating device according to another embodiment of the present disclosure is illustrated.

[0141] Figure 10 A vehicle according to an embodiment of the present disclosure is illustrated.

[0142] Figures 11 to 13 Examples Figure 10 The headrest.

[0143] Figure 14 and Figure 15 An example of a headrest for a vehicle according to another embodiment of the present disclosure is shown.

[0144] Figures 16 to 19 An example of a headrest for a vehicle according to another embodiment of the present disclosure is shown.

[0145] Throughout the accompanying drawings and detailed description, unless otherwise stated, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustrative purposes, the relative dimensions and illustrations of these elements may be exaggerated. Detailed Implementation

[0146] Reference will now be made in detail to embodiments of this disclosure, examples of which may be illustrated in the accompanying drawings. In the following description, detailed descriptions of well-known functions or configurations relevant to this document will be omitted where such obscuration unnecessarily obscures the essential points of the inventive concept. The described progression of processing steps and / or operations is illustrative; however, the order of steps and / or operations is not limited to the order set forth herein and may be varied as is known in the art, except for steps and / or operations that must occur in a specific order. The same reference numerals always denote the same elements. The names of the various elements used in the following explanation may be chosen solely for ease of specification and may therefore differ from those used in actual products.

[0147] The advantages and features of this disclosure, and its implementation methods, will be illustrated by the following exemplary embodiments described with reference to the accompanying drawings. However, this disclosure may be implemented in different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided to make this disclosure sufficiently thorough and complete to assist those skilled in the art in fully understanding its scope. Furthermore, this disclosure is limited only by the scope of the claims.

[0148] The shapes, dimensions, ratios, angles, and quantities disclosed in the accompanying drawings for describing embodiments of the present disclosure are merely examples. Therefore, the present disclosure is not limited to the details shown. Similar reference numerals always denote similar elements. In the following description, detailed descriptions of known functions or configurations may be omitted where unnecessarily obscuring the essential points of the present disclosure would be unacceptable. When the terms "comprising," "having," and "including" described in the present disclosure are used, another component may be added unless a more restrictive term such as "only" is used. Unless otherwise stated, singular terms may include plural forms.

[0149] When interpreting a component, even without an explicit description of the error or tolerance range, the component is interpreted as including the error or tolerance range. When describing positional relationships, if the positional relationship between two components is described as, for example, "on," "above," "below," or "next to," one or more other components may be placed between these two components unless more restrictive terms such as "exactly" or "directly" are used. When describing temporal relationships, for example, if the temporal sequence is described as "after," "following," "next," or "before," discontinuous situations may be included unless more restrictive terms such as "exactly," "immediately," or "directly" are used.

[0150] It will be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms may be used only to distinguish one element from another. For example, without departing from the scope of this disclosure, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0151] In describing the elements of this disclosure, terms such as “first,” “second,” “A,” “B,” “(a),” and “(b)” may be used. These terms may be used only to distinguish one element from another, and the substance, order, sequence, or number of the corresponding elements shall not be limited by these terms. Furthermore, when an element or layer is described as “connected,” “joined,” or “adhered” to another element or layer, unless otherwise stated, the element or layer may be directly connected or adhered to another element or layer, or indirectly connected or adhered to another element or layer, and one or more intermediate elements or layers may be “disposed” between these elements or layers.

[0152] The term "at least one" should be understood to include any and all combinations of one or more of the associated listed items. For example, "at least one of the first, second, and third items" means a combination of all items drawn from two or more of the first, second, and third items, as well as the first, second, or third item.

[0153] In the description of the embodiments, when a structure is described as being "above" or "below" another structure, this description should be interpreted to include situations where the structures are in contact with each other and where a third structure is disposed therebetween. The dimensions and thicknesses of each element shown in the figures may be given only for ease of description, and the embodiments of this disclosure are not limited thereto.

[0154] Furthermore, when referring to any scale, relative size, etc., even without a specific description, the numerical values ​​or corresponding information of the component or feature (e.g., level, range, etc.) should be taken into account, including the tolerances or error ranges that can be caused by various factors (e.g., process factors, internal or external shocks, noise, etc.). In addition, the term "can" fully encompasses all the meanings of the term "able to".

[0155] As will be fully understood by those skilled in the art, the features of the various embodiments of this disclosure may be partially or wholly linked or combined with each other, and may operate differently from each other and be technically driven. The embodiments of this disclosure may be performed independently of each other, or may be performed together in an interdependent relationship.

[0156] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the exemplary embodiments pertain. It will also be understood that terms such as those defined in common dictionaries should be interpreted as having a meaning consistent, for example, with their meaning in the context of the relevant field, and should not be interpreted as having an idealized or overly formal meaning, unless expressly defined herein. For example, the terms “component” or “unit” can be applied, for example, to a single circuit or structure, an integrated circuit, a computational block of a circuit arrangement, or any structure configured to perform the described functions, as would be understood by one of ordinary skill in the art.

[0157] In the following, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0158] Figure 1 An example of a vibration generating device according to an embodiment of the present disclosure is shown.

[0159] Reference Figure 1 The vibration generating device according to embodiments of the present disclosure may include a microphone device 100, a vibration device 200, and a sound processing circuit 300. The configuration of the vibration generating device is not limited thereto.

[0160] For example, the vibration generating device according to an embodiment of this disclosure can be applied to vehicle seats. As another embodiment of this disclosure, the vibration generating device can be applied to train seats, massage chairs, tables and chairs, head protection devices (e.g., military helmets, motorcycle helmets, baseball helmets, etc.). The object (or target object) to which the vibration generating device is applied is not limited to these. For example, the object can be a vibrating object, a vibrating component, a vibrating plate, or a sound generating plate, etc.

[0161] According to embodiments of the present disclosure, the microphone device 100 (in addition to a sound source (or a first sound source)) can also receive noise (or a second sound source) as sound to be provided by the vibration device 200, and the noise input to the microphone device 100 can be converted into an electrical signal and the electrical signal can be provided to the sound processing circuit 300. For example, the microphone device 100 can convert the input noise into an electrical signal corresponding to the noise and can provide the electrical signal to the sound processing circuit 300.

[0162] According to embodiments of this disclosure, the microphone device 100 can be disposed at an object to receive noise near the user. For example, the microphone device 100 can be disposed near the vibration device 200 and can be disposed in the object to receive noise near the vibration device 200.

[0163] According to embodiments of this disclosure, the microphone device 100 may be configured to receive one or more noises near the user's left side and near the user's right side. For example, the microphone device 100 may be configured to receive one or more noises near the user's left ear and near the user's right ear. For example, the microphone device 100 may be located at one or more of the left and right peripheries of the vibration device 200. For example, the microphone device 100 may receive one or more noises near the left side and near the right side of the vibration device 200.

[0164] According to embodiments of this disclosure, when the microphone device 100 receives noise near the user's ear, the sound processing circuit 300 can remove noise near the user's ear more effectively than when the microphone device 100 receives noise from a location far from the user's ear, thereby enhancing the noise reduction effect and providing the user with high-quality sound.

[0165] According to embodiments of this disclosure, the microphone device 100 can be disposed in a first region of the object to which the vibration generating device is applied and can receive noise near the first region. For example, the first region may be a region near the user's left ear. For example, the microphone device 100 can receive noise near the user's left ear. For example, the first region may be a region near the user's left side. For example, the microphone device 100 can receive noise near the user's left side.

[0166] According to embodiments of this disclosure, the microphone device 100 can be disposed in a second region of the object to which the vibration generating device is applied and can receive noise near the second region. For example, the second region can be a region near the user's right ear. For example, the microphone device 100 can receive noise near the user's right ear. For example, the second region can be a region near the user's right side. For example, the microphone device 100 can receive noise near the user's right side.

[0167] According to embodiments of this disclosure, the microphone device 100 can be disposed in a first region and a second region of the object to which the vibration generating device is applied, and can receive noise near the first region and the second region. Therefore, the microphone device 100 can receive noise near the user's ears or noise near the left and right sides of the vibration device 200.

[0168] According to embodiments of this disclosure, microphone device 100 may include one or more microphones capable of receiving noise.

[0169] According to embodiments of this disclosure, the microphone device 100 may include a first microphone (or left microphone) 110 disposed in a first region of an object. For example, the microphone device 100 may include one or more first microphones 110. For example, the first microphone 110 may receive noise (first noise or left noise) near the user's left ear (or near the left side of the vibration device 200). For example, the first microphone 110 may convert the first noise into an electrical signal to provide a first noise signal to the sound processing circuit 300.

[0170] According to embodiments of this disclosure, the microphone device 100 may include a second microphone (or right microphone) 120 disposed in a second region of an object. For example, the microphone device 100 may include one or more second microphones 120. For example, the second microphone 120 may receive noise (second noise or right noise) near the user's right ear (or near the right side of the vibration device 200). For example, the second microphone 120 may convert the second noise into an electrical signal to provide a second noise signal to the sound processing circuit 300.

[0171] According to embodiments of this disclosure, the microphone device 100 may include a first microphone (or left microphone) 110 disposed in a first region of an object and a second microphone (or right microphone) 120 disposed in a second region of the object. For example, the microphone device 100 may include one or more first microphones 110 and one or more second microphones 120. For example, the microphone device 100 may receive noise near the user's left ear (or near the left side of the vibration device 200) through the first microphone 110 and may receive noise near the user's right ear (or near the right side of the vibration device 200) through the second microphone 120.

[0172] The vibration device 200 according to embodiments of this disclosure can vibrate based on a vibration drive signal (or sound signal) provided from a sound processing circuit 300, and the vibration of the vibration device 200 can cause the user's ear, which is in contact with the vibration device 200, to transmit a sound source to the user. The vibration drive signal can correspond to a sound source to be provided to the user, and the vibration of the vibration device 200 based on the vibration drive signal can be transmitted to the brain through the ear skin, the bones (and skull) near the ear, the cochlea, and the auditory nerve, and the user can hear the sound source through bone conduction.

[0173] According to embodiments of this disclosure, the vibration device 200 can directly contact a user's ear and cause the user's ear to vibrate. For example, at least a portion of the vibration device 200 can be exposed to the outside of an object and can directly contact the user's ear. For example, the vibration device 200 can indirectly contact the user's ear and cause the user's ear to vibrate. For example, the vibration device 200 can cause an object on which the vibration device 200 is disposed to vibrate, and the vibration of the object can cause the ear of a user in contact with the object to vibrate. For example, the area vibrated by the vibration device 200 is not limited to the ear and may include the area surrounding the ear, the vibration of which transmits the sound source to the user via bone conduction.

[0174] Therefore, the vibration generating device according to embodiments of the present disclosure can transmit the sound source directly to the user's cochlea via bone conduction, so only the corresponding user can hear the sound source. In the vibration generating device according to embodiments of the present disclosure, another person cannot hear the sound source, thus protecting the user's privacy. The vibration generating device according to embodiments of the present disclosure can transmit the sound source directly to the user via bone conduction, therefore, it can be useful for deaf people and can enable deaf drivers to drive safely. The vibration generating device according to embodiments of the present disclosure can provide guidance broadcasts or alarms via bone conduction, thereby enabling the driver to accurately identify guidance broadcasts or alarms regardless of the noise level inside the vehicle.

[0175] Figure 2 A vibration device according to an embodiment of the present disclosure is illustrated. Figure 3 It is along Figure 2 The cross-sectional view taken by line I-I' is shown.

[0176] Reference Figures 1 to 3The vibration device 200 according to embodiments of the present disclosure may include one or more vibration generators 210. For example, the vibration generator 210 may be disposed at a third region of an object and may vibrate based on a vibration drive signal. For example, the third region of the object may be the region of the object corresponding to the user's left ear. For example, the vibration generator 210 may vibrate based on a vibration drive signal to vibrate the user's left ear. For example, the vibration generator 210 may vibrate the user's left ear and the region near the user's left ear.

[0177] According to embodiments of this disclosure, the vibration generator 210 can be disposed at a fourth region of the object and can vibrate based on a vibration drive signal. For example, the fourth region of the object can be the region of the object corresponding to the user's right ear. For example, the vibration generator 210 can vibrate based on a vibration drive signal to vibrate the user's right ear. For example, the vibration generator 210 can vibrate the user's right ear and the region near the user's right ear.

[0178] According to embodiments of this disclosure, the vibration generator 210 can be disposed at the third and fourth regions of an object and can vibrate based on a vibration drive signal. For example, the vibration generator 210 can vibrate based on a vibration drive signal to vibrate the user's ears. For example, the vibration generator 210 can vibrate the user's ears and the area near the user's ears.

[0179] According to embodiments of this disclosure, a first region of an object where a first microphone 110 is provided may overlap with a third region of an object where a vibration generator 210 is provided. For example, a second region of an object where a second microphone 120 is provided may overlap with a fourth region of an object where a vibration generator 210 is provided.

[0180] According to embodiments of the present disclosure, the vibration generator 210 may include one or more vibration structures. For example, the vibration generator 210 may include one or more vibration structures 210A. For example, the vibration structure 210A may be disposed at a third region of the object and may vibrate based on a vibration driving signal. For example, the vibration structure 210A may be disposed at a fourth region of the object and may vibrate based on a vibration driving signal. For example, the vibration structure 210A may be disposed at both the third and fourth regions and may vibrate based on a vibration driving signal.

[0181] The vibrating structure 210A can vibrate by alternately and / or repeatedly contracting and expanding based on the piezoelectric effect (or piezoelectric properties). For example, the vibrating structure 210A according to an embodiment of the present disclosure can vibrate in the thickness direction Z by alternately and / or repeatedly contracting and expanding based on the inverse piezoelectric effect, thereby directly vibrating the target object. For example, the vibrating structure 210A according to an embodiment of the present disclosure can have a quadrilateral or square shape, but the embodiments of the present disclosure are not limited thereto.

[0182] The vibration structure 210A according to an embodiment of the present disclosure may include a vibration portion 211, a first electrode layer E1, and a second electrode layer E2.

[0183] The vibrating portion 211 may include a piezoelectric material, a composite piezoelectric material, or an electroactive material. The piezoelectric material, composite piezoelectric material, and electroactive material may exhibit a piezoelectric effect. The vibrating portion 211 may be referred to as a vibrating layer, a piezoelectric material layer, a piezoelectric composite layer, an electroactive layer, a piezoelectric material portion, a piezoelectric composite portion, an electroactive portion, a piezoelectric structure, a piezoelectric composite, or a piezoelectric ceramic composite, but the embodiments disclosed herein are not limited thereto.

[0184] The vibrating portion 211 according to embodiments of this disclosure may include a ceramic-based material capable of achieving relatively high vibrations. For example, the vibrating portion 211 may include a 1-3 composite structure or a 2-2 composite structure. For example, the piezoelectric deformation coefficient "d" of the vibrating portion 211 in the thickness direction Z... 33 "It can have 1000 pC / N or greater, but the embodiments disclosed herein are not limited thereto."

[0185] The first electrode layer E1 can be disposed on the first surface (or upper surface) of the vibrating portion 211 and can be electrically connected to the first surface of the vibrating portion 211. For example, the first electrode layer E1 can have a single electrode type (or a common electrode type) that can be disposed on the entire first surface of the vibrating portion 211. The first electrode layer E1 according to embodiments of the present disclosure may include a transparent conductive material, a semi-transparent (or semi-transparent) conductive material, or an opaque conductive material. For example, examples of transparent or semi-transparent conductive materials may include indium tin oxide (ITO) or indium zinc oxide (IZO), but embodiments of the present disclosure are not limited thereto. Opaque conductive materials may include aluminum (Al), copper (Cu), gold (Au), silver (Ag), molybdenum (Mo), magnesium (Mg), etc., and any alloys thereof, but embodiments of the present disclosure are not limited thereto.

[0186] The second electrode layer E2 can be located on the second surface (or rear surface) of the vibrating portion 211 opposite to the first surface and can be electrically connected to the second surface of the vibrating portion 211. For example, the second electrode layer E2 can have a single electrode type (or a common electrode type) that can be disposed on the entire second surface of the vibrating portion 211. The second electrode layer E2 according to embodiments of the present disclosure may include a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the second electrode layer E2 may include the same material as the first electrode layer E1, but embodiments of the present disclosure are not limited thereto. As another embodiment of the present disclosure, the second electrode layer E2 may include a material different from the first electrode layer E1.

[0187] The vibrating part 211 can be polarized by applying a certain voltage to the first electrode layer E1 and the second electrode layer E2 in a certain temperature atmosphere or in a temperature atmosphere that can be changed from high temperature to room temperature, but the embodiments of this disclosure are not limited thereto.

[0188] The vibration generator 210 according to the embodiments of the present disclosure may further include a first protective member 213 and a second protective member 215.

[0189] The first protective member 213 may be disposed on the first surface of the vibration generator 210. For example, the first protective member 213 may cover the first electrode layer E1 disposed on the first surface of the vibration structure 210A. Therefore, the first protective member 213 may support the first surface of the vibration structure 210A and may protect the first surface of the vibration structure 210A or the first electrode layer E1.

[0190] According to embodiments of the present disclosure, the first protective member 213 can be disposed on the first surface of the vibration structure 210A via the first adhesive layer 212. For example, the first protective member 213 can be directly disposed on the first surface of the vibration structure 210A via a film lamination process using the first adhesive layer 212.

[0191] The second protective member 215 may be disposed on the second surface of the vibration generator 210. For example, the second protective member 215 may cover the second electrode layer E2 disposed on the second surface of the vibration structure 210A. Therefore, the second protective member 215 may support the second surface of the vibration structure 210A and protect the second surface of the vibration structure 210A or the second electrode layer E2.

[0192] The second protective member 215 can be disposed on the second surface of the vibration structure 210A via the second adhesive layer 214. For example, the second protective member 215 can be directly disposed on the second surface of the vibration structure 210A via a film lamination process using the second adhesive layer 214.

[0193] Each of the first protective member 213 and the second protective member 215 according to embodiments of the present disclosure may include a plastic film. For example, each of the first protective member 213 and the second protective member 215 may be a polyimide (PI) film or a polyethylene terephthalate (PET) film, but embodiments of the present disclosure are not limited thereto.

[0194] The first adhesive layer 212 may be disposed on the first surface of the vibrating structure 210A. For example, the first adhesive layer 212 may be formed on the rear surface (or inner surface) of the first protective member 213 facing the first surface of the vibrating structure 210A and disposed on the first surface of the vibrating structure 210A.

[0195] The second adhesive layer 214 may be disposed on the second surface of the vibration structure 210A. For example, the second adhesive layer 214 may be formed on the front surface (or inner surface) of the second protective member 215 facing the second surface of the vibration structure 210A and disposed on the second surface of the vibration structure 210A.

[0196] The vibrating structure 210A may be surrounded by a first adhesive layer 212 and a second adhesive layer 214. For example, the first adhesive layer 212 and the second adhesive layer 214 may completely surround the entire vibrating structure 210A. For example, the first adhesive layer 212 and the second adhesive layer 214 may be referred to as covering members, but the embodiments of this disclosure are not limited thereto. When each of the first adhesive layer 212 and the second adhesive layer 214 is a covering member, a first protective member 213 may be disposed at a first surface of the covering member, and a second protective member 215 may be disposed at a second surface of the covering member. For example, for ease of description, the first adhesive layer 212 and the second adhesive layer 214 are illustrated as a first adhesive layer 212 and a second adhesive layer 214, but the embodiments of this disclosure are not limited thereto, and may be configured as a single adhesive layer.

[0197] Each of the first adhesive layer 212 and the second adhesive layer 214 according to embodiments of the present disclosure may include an electrically insulating material that is adhesive and may include a material capable of compression and decompression. For example, each of the first adhesive layer 212 and the second adhesive layer 214 may include an epoxy resin, an acrylic resin, a silicone resin, or a polyurethane resin, but embodiments of the present disclosure are not limited thereto.

[0198] The vibration device 200 or vibration generator 210 according to embodiments of the present disclosure may further include a first power line PL1, a second power line PL2, and a pad portion 201.

[0199] The first power line PL1 can be disposed at the first protective member 213. For example, the first power line PL1 can be disposed on the rear surface of the first protective member 213 facing the first surface of the vibrating structure 210A. The first power line PL1 can be electrically connected to the first electrode layer E1 of the vibrating structure 210A. For example, the first power line PL1 can be directly electrically connected to the first electrode layer E1 of the vibrating structure 210A. For example, the first power line PL1 can be electrically connected to the first electrode layer E1 of the vibrating structure 210A through an anisotropic conductive film. As another embodiment of this disclosure, the first power line PL1 can be electrically connected to the first electrode layer E1 of the vibrating structure 210A through the conductive material (or particles) included in the first adhesive layer 212.

[0200] The second power line PL2 can be disposed at the second protective member 215. For example, the second power line PL2 can be disposed on the front surface of the second surface of the second protective member 215 facing the vibration structure 210A. The second power line PL2 can be electrically connected to the second electrode layer E2 of the vibration structure 210A. For example, the second power line PL2 can be directly electrically connected to the second electrode layer E2 of the vibration structure 210A. For example, the second power line PL2 can be electrically connected to the second electrode layer E2 of the vibration structure 210A through an anisotropic conductive film. As another embodiment of this disclosure, the second power line PL2 can be electrically connected to the second electrode layer E2 of the vibration structure 210A through a conductive material (or particles) included in the second adhesive layer 214.

[0201] The pad portion 201 can be electrically connected to a first power line PL1 and a second power line PL2. For example, the pad portion 201 can be disposed at the vibration generator 210 to be electrically connected to a portion (or one end) of each of the first power line PL1 and the second power line PL2. The pad portion 201 according to an embodiment of this disclosure may include a first pad electrode and a second pad electrode. The first pad electrode can be electrically connected to a portion of the first power line PL1. The second pad electrode can be electrically connected to a portion of the second power line PL2.

[0202] The vibration device 200 or vibration generator 210 according to embodiments of the present disclosure may also include a flexible cable 220.

[0203] The flexible cable 220 can be electrically connected to the pad portion 201 disposed in the vibration device 200 or vibration generator 210, and can provide vibration drive signals (or sound signals) from the sound processing circuit to the vibration device 200 or vibration generator 210. The flexible cable 220 according to embodiments of the present disclosure may include a first terminal and a second terminal. The first terminal can be electrically connected to a first pad electrode of the pad portion 201. The second terminal can be electrically connected to a second pad electrode of the pad portion 201. For example, the flexible cable 220 can be configured as a flexible printed circuit cable or a flexible flat cable, but embodiments of the present disclosure are not limited thereto.

[0204] The vibration generator 210 according to an embodiment of the present disclosure may further include a plate 216.

[0205] Plate 216 may be disposed at the first protective member 213 or the second protective member 215. For example, plate 216 may have the same shape as the first protective member 213 (or the second protective member 215). Plate 216 may have a size greater than or equal to that of the first protective member 213 (or the second protective member 215).

[0206] According to an embodiment of the present disclosure, the plate 216 can be disposed on the front surface (or first surface) of the first protective member 213. The plate 216 can be disposed on the front surface of the first protective member 213 of the vibration generator 210 via a connecting member. According to an embodiment of the present disclosure, the plate 216 can be disposed between the object and the first protective member 213.

[0207] According to another embodiment of this disclosure, plate 216 may be disposed on the rear surface (or second surface) of the second protective member 215. Plate 216 may be disposed on the rear surface of the second protective member 215 of the vibration generator 210 via a connecting member. According to an embodiment of this disclosure, plate 216 may be disposed between the object and the second protective member 215.

[0208] The plate 216 according to embodiments of this disclosure may include metallic materials, and may include, for example, one or more materials selected from stainless steel, aluminum (Al), magnesium (Mg), magnesium (Mg) alloys, magnesium-lithium (Mg-Li) alloys, and Al alloys, but embodiments of this disclosure are not limited thereto. The plate 216 may be disposed at the first protective member 213 (or the second protective member 215) and may increase the mass of the vibration generator 210 based on an increase in mass to reduce the resonant frequency of the vibration generator 210. Therefore, the sound characteristics and sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the vibration generator 210 may be increased, and the flatness of the sound characteristics may be enhanced. For example, the flatness of the sound characteristics may be the magnitude of the deviation between the highest and lowest sound pressure levels.

[0209] Furthermore, the vibration device 200 according to embodiments of the present disclosure may also include a plate 216 disposed in the vibration generator 210, thereby reducing the resonant frequency of the vibration generator 210. Therefore, the vibration device 200 according to embodiments of the present disclosure can increase the sound characteristics and sound pressure level characteristics of the low-pitched vocal cords of the sound generated by the vibration of an object based on the vibration of the vibration generator 210, as well as the flatness of the sound characteristics.

[0210] Figures 4A to 4F Examples Figure 3 The vibration structure shown.

[0211] Reference Figure 2 , Figure 3 and Figure 4A The vibration structure 210A included in the vibration generator 210 of the vibration device 200 according to embodiments of the present disclosure may include a vibration portion (or vibration layer) 211. For example, the vibration device 200 according to embodiments of the present disclosure may include a vibration structure 210A. For example, the vibration structure 210A may include a first portion 211a and a second portion 211b. For example, the first portion 211a may include an inorganic material, while the second portion 211b may include an organic material. For example, the first portion 211a may have piezoelectric properties, while the second portion 211b may have flexible properties. For example, the inorganic material of the first portion 211a may have piezoelectric properties, while the organic material of the second portion 211b may have flexible properties.

[0212] The vibrating portion 211 may include a plurality of first portions 211a and a plurality of second portions 211b. For example, the plurality of first portions 211a and the plurality of second portions 211b may be arranged alternately and repeatedly along a second direction Y. Each of the plurality of first portions 211a may be disposed between two adjacent second portions 211b. For example, each of the plurality of first portions 211a may have a first width W1 parallel to the second direction Y and a length parallel to the first direction X. Each of the plurality of second portions 211b may be disposed parallel to the second direction Y. For example, each of the plurality of second portions 211b may have a second width W2 and a length parallel to the first direction X. Each of the plurality of second portions 211b may have the same dimensions, such as the same width, area, or volume. For example, each of the plurality of second portions 211b may have the same dimensions (e.g., the same width, area, or volume) within the range (or allowable error) of manufacturing process errors. The first width W1 may be the same as or different from the second width W2. For example, the first width W1 may be greater than the second width W2. For example, the first part 211a and the second part 211b may include line shapes or strip shapes having the same or different dimensions. Therefore, Figure 4A The vibrating part 211 shown may include a 2-2 composite structure and thus may have a resonant frequency of 20 kHz or less, but the embodiments of this disclosure are not limited thereto, and the resonant frequency of the vibrating part 211 may vary based on one or more of the shape, length and thickness of the vibrating part.

[0213] Reference Figure 2 , Figure 3 and Figure 4B According to another embodiment of the vibration generator 210 of this disclosure, the vibration portion 211 of the vibration structure 210A may include a plurality of first portions 211a and a plurality of second portions 211b, which may be arranged alternately and repeatedly in a first direction X. Each of the plurality of first portions 211a may be disposed between two adjacent second portions 211b. For example, each of the plurality of first portions 211a may have a third width W3 parallel to the first direction X and a length parallel to the second direction Y. Each of the plurality of second portions 211b may have a fourth width W4 parallel to the first direction X and a length parallel to the second direction Y. The third width W3 may be the same as or different from the fourth width W4. For example, the third width W3 may be greater than the fourth width W4. For example, the first portions 211a and the second portions 211b may include line shapes or strip shapes having the same size or different sizes. Therefore, Figure 4B The vibrating part 211 shown may include a 2-2 composite structure and thus may have a resonant frequency of 20 kHz or less, but the embodiments of this disclosure are not limited thereto, and the resonant frequency of the vibrating part 211 may vary based on one or more of the shape, length and thickness of the vibrating part.

[0214] exist Figure 4A and Figure 4B In each of the vibrating portions 211 shown in the diagram, each of the plurality of first portions 211a and each of the plurality of second portions 211b can be arranged (or arranged) in parallel on the same plane (or the same layer). Each of the plurality of second portions 211b can be configured to fill the gap between two adjacent first portions 211a. Each of the plurality of second portions 211b can be connected to or attached to an adjacent first portion 211a. Therefore, based on the lateral connection (or side connection) between the first portions 211a and the second portions 211b, the vibrating portion 211 can be enlarged to have a desired size or length.

[0215] exist Figure 4A and Figure 4BIn each of the vibrating portions (or vibrating layers) 211 shown in the diagram, the widths W2 and W4 of each of the plurality of second portions 211b may gradually decrease in the direction from the central portion of the vibrating portion 211 or the vibrating device to the two peripheries (or sides or ends).

[0216] According to another embodiment of this disclosure, the second portion 211b with the largest width (W2, W4) among the plurality of second portions 211b can be located at the portion where the maximum stress can be concentrated when the vibrating portion 211 or vibrating device vibrates in the vertical (or up-down) direction Z (or thickness direction). The second portion 211b with the smallest width (W2, W4) among the plurality of second portions 211b can be located at the portion where relatively low stress can occur when the vibrating portion 211 or vibrating device vibrates in the vertical direction Z. For example, the second portion 211b with the largest width (W2, W4) among the plurality of second portions 211b can be provided in the central portion of the vibrating portion 211, and the second portion 211b with the smallest width (W2, W4) among the plurality of second portions 211b can be provided at each of the two peripheries of the vibrating portion 211. Therefore, when the vibrating portion 211 or vibrating device vibrates in the vertical direction Z, the interference of sound waves or the overlap of resonant frequencies occurring at the respective portions where the highest stress is concentrated can be reduced or minimized. Therefore, the sound pressure level dip that occurs in the low-pitched vocal cords can be reduced, thereby improving the flatness of the sound characteristics in the low-pitched vocal cords. For example, the flatness of sound characteristics can be the level of deviation between the highest and lowest sound pressure levels.

[0217] exist Figure 4A and Figure 4B In each of the vibrating portions 211 shown, each of the plurality of first portions 211a may have a different size (or width). For example, the size (or width) of each of the plurality of first portions 211a may gradually decrease or increase in the direction from the central portion of the vibrating portion 211 or the vibrating device to the two peripheries (or sides or ends). In this case, in the vibrating portion 211, based on the various inherent vibration frequencies of the vibrations of each of the plurality of first portions 211a with different sizes, the sound pressure level characteristics of the sound can be enhanced and the sound reproduction band can be increased.

[0218] Reference Figure 2 , Figure 3 and Figure 4CAccording to another embodiment of the vibration generator 210 of this disclosure, the vibration portion 211 of the vibration structure 210A may include a plurality of first portions 211a that may be spaced apart from each other in a first direction X and a second direction Y, and a second portion 211b disposed between the plurality of first portions 211a. The plurality of first portions 211a may be configured to be spaced apart from each other in the first direction X and the second direction Y. For example, each of the plurality of first portions 211a may have a hexagonal shape (or a hexahedral shape) of the same size and may be configured in a lattice shape. The second portion 211b may be disposed between the plurality of first portions 211a in each of the first direction X and the second direction Y. The second portion 211b may be configured to fill the gap or space between two adjacent first portions 211a or surround each of the plurality of first portions 211a. Therefore, the second portion 211b may be connected to or attached to adjacent first portions 211a. For example, the width of the second portion 211b disposed between two adjacent first portions 211a along the first direction X may be the same as or different from the first portion 211a, and the width of the second portion 211b disposed between two adjacent first portions 211a along the second direction Y may be the same as or different from the first portion 211a. Therefore, Figure 4C The vibrating part 211 shown may have a resonant frequency of 30 MHz or lower depending on the 1-3 composite structure, but the embodiments of this disclosure are not limited thereto, and the resonant frequency of the vibrating part 211 may vary based on one or more of the shape, length and thickness of the vibrating part.

[0219] Reference Figure 2 , Figure 3 and Figure 4D According to another embodiment of the vibration generator 210 of the present disclosure, the vibration portion 211 of the vibration structure 210A may include a plurality of first portions 211a that may be spaced apart from each other in a first direction X and a second direction Y, and a second portion 211b surrounding each of the plurality of first portions 211a. Each of the plurality of first portions 211a may have a circular, flat structure. For example, each of the plurality of first portions 211a may have a circular shape, but embodiments of the present disclosure are not limited thereto, and may have a dot shape including an oval, polygonal, or donut shape. The second portion 211b may surround each of the plurality of first portions 211a. Therefore, the second portion 211b may be connected to or attached to the side surface of each of the plurality of first portions 211a. The plurality of first portions 211a and the second portion 211b may be arranged (or arranged) in parallel on the same plane (or the same layer). Therefore, Figure 4DThe vibration part 211 shown may include a composite structure of 1-3 and may be implemented as a circular vibration source (or vibrator), thereby enhancing vibration characteristics or sound output characteristics and having a resonant frequency of 30MHz or lower. However, the embodiments of this disclosure are not limited thereto, and the resonant frequency of the vibration part 211 may vary based on one or more of the shape, length and thickness of the vibration part.

[0220] Reference Figure 2 , Figure 3 and Figure 4E In a vibration generator 210 according to another embodiment of the present disclosure, the vibration portion 211 of each of the plurality of vibration structures 210A to 210D arranged (or laid flat) may include a plurality of first portions 211a that may be spaced apart from each other in a first direction X and a second direction Y, and a second portion 211b surrounding each of the plurality of first portions 211a. Each of the plurality of first portions 211a may have a flat triangular structure. For example, each of the plurality of first portions 211a may have a triangular shape.

[0221] According to embodiments of this disclosure, four adjacent first portions 211a of a plurality of first portions 211a may be adjacent to each other to form a quadrilateral or rectangular shape (or a square shape). The vertices of the four adjacent first portions 211a forming the quadrilateral may be adjacent to each other in the central portion (or central part) of the quadrilateral. A second portion 211b may surround each of the plurality of first portions 211a. Therefore, the second portion 211b may be connected to or attached to the side surface (or lateral surface) of each of the plurality of first portions 211a. The plurality of first portions 211a and the second portion 211b may be arranged (or arranged) in parallel on the same plane (or the same layer). Therefore, Figure 4E The vibrating part 211 shown may have a resonant frequency of 30 MHz or lower depending on the 1-3 composite structure, but the embodiments of this disclosure are not limited thereto, and the resonant frequency of the vibrating part 211 may vary based on one or more of the shape, length and thickness of the vibrating part.

[0222] As another embodiment of this disclosure, such as Figure 4FAs shown, six adjacent first portions 211a of a plurality of first portions 211a can be adjacent to each other to form a hexagonal shape (or a regular hexagonal shape). The vertices of the six adjacent first portions 211a forming the hexagonal shape can be adjacent to each other in the central portion (or central part) of the hexagonal shape. A second portion 211b can surround each of the plurality of first portions 211a. Therefore, the second portion 211b can be connected to or attached to the side surface (or lateral surface) of each of the plurality of first portions 211a. The plurality of first portions 211a and the second portion 211b can be arranged (or arranged) in parallel on the same plane (or the same layer). Therefore, Figure 4F The vibrating part 211 shown may include a composite structure of 1-3 and may be implemented as a circular vibration source (or vibrator), thereby enhancing vibration characteristics or sound output characteristics and having a resonant frequency of 30MHz or lower. However, the embodiments of this disclosure are not limited thereto, and the resonant frequency of the vibrating part 211 may vary based on one or more of the shape, length and thickness of the vibrating part.

[0223] Reference Figure 4E and Figure 4F Two N (where N is a natural number greater than or equal to 2) adjacent first parts 211a of a plurality of first parts 211a having a triangular shape may be arranged adjacent to each other to form a 2N-angle shape.

[0224] exist Figures 4A to 4F In this embodiment of the present disclosure, each of the multiple first portions 211a can be configured as an inorganic material portion. The inorganic material portion may include a piezoelectric material or an electroactive material. The piezoelectric material or electroactive material may have the following characteristics: when pressure or twisting (or bending) is applied to the crystal structure by an external force, a potential difference arises due to dielectric polarization caused by the change in the relative positions of (+) ions and (-) ions, and vibrations are generated by an electric field based on the reverse voltage applied thereto. Referring to the above... Figure 3 The first surface of each of the plurality of first portions 211a can be electrically connected to the first electrode layer E1, and the second surface of each of the plurality of first portions 211a can be electrically connected to the second electrode layer E2.

[0225] exist Figures 4A to 4FIn this disclosure, the inorganic material portion included in each of the plurality of first portions 211a may include a ceramic-based material for generating relatively high vibrations, or may include a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure may exhibit both piezoelectric and inverse piezoelectric effects and may be an oriented plate-like structure. The perovskite crystal structure may be represented by the chemical formula "ABO3". In the chemical formula, "A" may include a divalent metal element, and "B" may include a tetravalent metal element. For example, in the chemical formula "ABO3", "A" and "B" may be cations, and "O" may be an anion. For example, the first portion 211a may include one or more of lead(II) titanate (PbTiO3), lead zirconate (PbZrO3), lead zirconate titanate (PbZrTiO3), barium titanate (BaTiO3), and strontium titanate (SrTiO3), but embodiments of this disclosure are not limited thereto.

[0226] When a perovskite crystal structure includes a central ion (e.g., lead titanate (II)), the position of the titanium (Ti) ion can be altered by external stress or a magnetic field, thus changing the polarization and generating a piezoelectric effect. For example, in a perovskite crystal structure, a cubic shape corresponding to a symmetrical structure can be changed to a tetragonal (or quadrilateral), orthorhombic, or rhombic structure corresponding to an asymmetrical structure, thus generating a piezoelectric effect. In the tetragonal (or quadrilateral), orthorhombic, or rhombic structures corresponding to asymmetrical structures, the polarization at the quasi-isomorphic phase boundaries can be higher, and the reorientation of polarization can be easy, thereby allowing the perovskite crystal structure to possess high piezoelectric properties.

[0227] According to embodiments of the present disclosure, the inorganic material portion included in each of the plurality of first portions 211a may include one or more materials selected from lead (Pb), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni) and niobium (Nb), but embodiments of the present disclosure are not limited thereto.

[0228] According to embodiments of this disclosure, the inorganic material portion included in each of the plurality of first portions 211a may include a lead zirconate titanate (PZT)-based material containing lead (Pb), zirconium (Zr), and titanium (Ti); or may include a nickel zirconate niobate lead zirconate (PZNN)-based material containing lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but embodiments of this disclosure are not limited thereto. Furthermore, the inorganic material portion may include one or more of calcium titanate (CaTiO3), BaTiO3, and SrTiO3, each of which does not contain Pb, but embodiments of this disclosure are not limited thereto.

[0229] According to another embodiment of this disclosure, the inorganic material portion included in each of the plurality of first portions 211a may have a piezoelectric deformation coefficient of 1000 pC / N or greater in the thickness direction Z. 33 Vibration equipment can be applied to objects with large dimensions and may require a high piezoelectric deformation coefficient. 33 ", to possess sufficient vibrational or piezoelectric properties. For example, to have a high piezoelectric deformation coefficient "d 33 The inorganic material component may include PZT-based materials (PbZrTiO3) as the main component, and may include softener doped materials doped to A sites (Pb) and relaxor ferroelectric materials doped to B sites (ZrTi).

[0230] Softener doping can enhance the piezoelectric and dielectric properties of inorganic material components, and can, for example, increase the piezoelectric deformation coefficient "d" of the inorganic material components. 33 The softener dopant material according to embodiments of this disclosure may include divalent elements "+2" to trivalent elements "+3". By adding softener dopant materials to PZT-based materials (PbZrTiO3), quasi-isomorphic phase boundaries (MPBs) can be achieved, thereby enhancing piezoelectric and dielectric properties. For example, softener dopant materials may include strontium (Sr), barium (Ba), lanthanum (La), neodymium (Nd), calcium (Ca), yttrium (Y), erbium (Er), or ytterbium (Yb). For example, the softener dopant ions (Sr) doped into PZT-based materials (PbZrTiO3) 2+ Ba 2+ La 2+ 、Nd 3+ Ca 2+ Y 3+ Er 3+ Yb 3+ This material can replace a portion of the lead (Pb) in PZT-based materials (PbZrTiO3), with a substitution rate ranging from approximately 2 mol% to approximately 20 mol%. For example, when the substitution rate is less than 2 mol% or greater than 20 mol%, the perovskite crystal structure may break, thus affecting the electromechanical coupling coefficient "kP" and the piezoelectric deformation coefficient "d". 33 "It may be reduced. When the softener dopant is replaced, MPB can be formed, and the piezoelectric and dielectric properties can be higher in MPB, thereby realizing a vibration device with high piezoelectric and high dielectric properties."

[0231] According to embodiments of this disclosure, relaxor ferroelectric materials doped into PZT-based materials (PbZrTiO3) can enhance the electrical deformation properties of the inorganic material portion. The relaxor ferroelectric materials according to embodiments of this disclosure may include lead magnesium niobate (PMN)-based materials or lead nickel niobate (PNN)-based materials, but embodiments of this disclosure are not limited thereto. PMN-based materials may include Pb, Mg, and Nb, and may include, for example, Pb(Mg,Nb)O3. PNN-based materials may include Pb, Ni, and Nb, and may include, for example, Pb(Ni,Nb)O3. For example, the relaxor ferroelectric material doped into PZT-based materials (PbZrTiO3) can replace a portion of each of zirconium (Zr) and titanium (Ti) in the PZT-based materials (PbZrTiO3), and its replacement rate can be from about 5 mol% to about 25 mol%. For example, when the substitution rate is less than 5 mol% or greater than 25 mol%, the perovskite crystal structure may break, thus affecting the electromechanical coupling coefficient "kP" and the piezoelectric deformation coefficient "d". 33 "It may decrease."

[0232] According to embodiments of this disclosure, the inorganic material portion disposed in each of the plurality of first portions 211a may further include donor materials doped into the B sites (ZrTi) of the PZT-based material (PbZrTiO3) to further enhance the piezoelectric coefficient. For example, the donor materials doped into the B sites (ZrTi) may include tetravalent elements "+4" or hexavalent elements "+6". For example, the donor materials doped into the B sites (ZrTi) may include tellurium (Te), germanium (Ge), uranium (U), bismuth (Bi), niobium (Nb), tantalum (Ta), antimony (Sb), or tungsten (W).

[0233] The inorganic material portion disposed in each of the plurality of first portions 211a according to embodiments of the present disclosure may have a piezoelectric deformation coefficient of 1000 pC / N or greater in the thickness direction Z. 33 This allows for the creation of vibration devices with enhanced vibration characteristics. For example, vibration devices with enhanced vibration characteristics can be implemented in objects with large areas.

[0234] exist Figures 4A to 4FIn this configuration, the second portion 211b can be disposed between or around each of the plurality of first portions 211a. Therefore, in the vibration portion 211 of the vibration generator 210 or vibration device 200, the vibrational energy based on the links in the unit lattice of each first portion 211a can be increased by the corresponding second portion 211b. Thus, vibration can be increased, and piezoelectric properties and flexibility can be ensured. For example, the second portion 211b may comprise one or more of epoxy-based polymers, acrylic polymers, and silicone polymers, but embodiments of this disclosure are not limited thereto.

[0235] The second part 211b according to the embodiments of this disclosure can be configured as an organic material part. For example, the organic material part can be disposed between the inorganic material parts and can absorb the impact applied to the inorganic material part (or the first part), can release the stress concentrated on the inorganic material part to enhance the overall durability of the vibration generator 210 or the vibration part 211 of the vibration device, and can provide flexibility to the vibration generator 210 or the vibration part 211 of the vibration device.

[0236] The second portion 211b according to embodiments of this disclosure may have a lower modulus (or Young's modulus) and viscoelasticity than the first portion 211a. Therefore, the second portion 211b can enhance the reliability of the first portion 211a, which is susceptible to impact due to its brittle nature. For example, the second portion 211b may comprise a material having a loss coefficient of about 0.01 to about 1.0 and a modulus of about 0.1 GPa to about 10 GPa.

[0237] The organic material portion configured with the second part 211b may include one or more of organic materials, organic polymers, organic piezoelectric materials, and organic non-piezoelectric materials that have flexible or tough properties compared to the inorganic material portion of the first part 211a. For example, the second part 211b may be referred to as an adhesive portion, a stretching portion, a bending portion, a damping portion, or a flexible portion, etc., but embodiments of this disclosure are not limited thereto.

[0238] Therefore, multiple first portions 211a and second portions 211b can be disposed (or connected) on the same plane, thus the vibration portion 211 of the vibration generator 210 according to various embodiments of the present disclosure can be a single thin film type. For example, the vibration portion 211 can vibrate in the vertical (or up-down) direction (or thickness direction) by means of the first portion 211a having vibration characteristics, and can be bent into a curved shape by means of the second portion 211b having flexibility or toughness. Furthermore, in the vibration portion 211 of the vibration generator 210 according to various embodiments of the present disclosure, the dimensions of the first portion 211a and the second portion 211b can be adjusted based on the piezoelectric characteristics and flexibility required for the vibration portion 211. For example, when the vibration portion 211 requires piezoelectric characteristics rather than flexibility, the dimension of the first portion 211a can be adjusted to be larger than that of the second portion 211b. As another embodiment of the present disclosure, when the vibration portion 211 requires flexibility rather than piezoelectric characteristics, the dimension of the second portion 211b can be adjusted to be larger than that of the first portion 211a. Therefore, the dimensions of the vibrating part 211 can be adjusted based on its required characteristics, thus the vibrating part 211 can be easily designed.

[0239] Figures 4A to 4F One or more of the vibrating parts 211 shown may be Figure 2 The vibrating portion 211 of the vibrating structure 210A shown. For example, the vibrating structure 210A can be based on the desired characteristics of the sound generated on the basis of the vibration of the vibrating device 200, using the reference above. Figures 4A to 4F The vibration is achieved by one or more of the described vibration components 211.

[0240] According to embodiments of this disclosure, the vibration structure 210A may include the above-mentioned reference. Figures 4A to 4F The vibration is achieved by one or more of the described vibration components 211.

[0241] Figure 5 Examples Figure 1 The sound processing circuit.

[0242] Reference Figure 1 and Figure 5 According to embodiments of the present disclosure, the sound processing circuit 300 can generate a vibration drive signal (or sound signal) based on the sound source signal and noise signal input thereto, and can provide the generated vibration drive signal to the vibration device 200 to cause the vibration device 200 to vibrate. For example, the sound processing circuit 300 can cause the vibration generator 210 of the vibration device 200 to vibrate.

[0243] According to embodiments of this disclosure, the sound processing circuit 300 can generate an alternating current (AC) vibration drive signal, including a first polarity vibration drive signal and a second polarity vibration drive signal, based on a sound source signal and a noise signal. The first polarity vibration drive signal can be one of a positive (+) vibration drive signal and a negative (-) vibration drive signal, and the second polarity vibration drive signal can be the other of the positive (+) vibration drive signal and the negative (-) vibration drive signal. For example, the first polarity vibration drive signal can be provided to the first electrode layer E1 of the vibration structure 210A through the first terminal of the flexible cable 220, the first pad electrode of the pad portion 201, and the first power line PL1. The second polarity vibration drive signal can be provided to the second electrode layer E2 of the vibration structure 210A through the second terminal of the flexible cable 220, the second pad electrode of the pad portion 201, and the second power line PL2.

[0244] According to embodiments of this disclosure, the sound processing circuit 300 can receive sound source signals from the sound source providing system 400. For example, the sound source providing system 400 may be a vehicle comfort system such as a navigation system, audio system, or multimedia system installed in a vehicle, but embodiments of this disclosure are not limited thereto.

[0245] According to embodiments of this disclosure, the sound processing circuit 300 can receive noise signals from the microphone device 100. For example, the sound processing circuit 300 can receive a first noise signal from the first microphone 110 and a second noise signal from the second microphone 120.

[0246] According to embodiments of this disclosure, the sound processing circuit 300 can generate a noise removal signal (or a noise anti-phase signal) having an opposite phase to the noise signal to remove the noise signal. For example, the sound processing circuit 300 can generate a first noise removal signal (or a first noise anti-phase signal) having an opposite phase to the first noise signal to remove the first noise signal. For example, the sound processing circuit 300 can generate a second noise removal signal (or a second noise anti-phase signal) having an opposite phase to the second noise signal to remove the second noise signal. For example, the sound processing circuit 300 can combine a sound source signal with a noise removal signal to generate a vibration driving signal. For example, the sound processing circuit 300 can combine a sound source signal, a first noise removal signal, and a second noise removal signal to generate a vibration driving signal.

[0247] The sound processing circuit 300 according to embodiments of the present disclosure may include an input unit (input) 310, a signal processing unit (or signal processor or noise removal signal generation unit) 320, and a drive signal generation unit (or signal combination unit) 330. The configuration of the sound processing circuit 300 is not limited thereto.

[0248] According to the embodiments of this disclosure, the input unit 310 can receive sound source signals and noise signals, and can provide the received sound source signals and noise signals to the signal processing unit 320.

[0249] According to embodiments of this disclosure, the input unit 310 may include a first input unit (or sound source input unit or sound source signal input unit) 311 that receives a sound source signal and provides the received sound source signal to the signal processing unit 320, and a second input unit (or noise input unit or noise signal input unit) 312 that receives a noise signal and provides the received noise signal to the signal processing unit 320. For example, the second input unit 312 may include a second-1 input unit (or first noise input unit or first noise signal input unit) 312-1 that receives a first noise signal and provides the received first noise signal to the signal processing unit 320, and a second-2 input unit (or second noise input unit or second noise signal input unit) 312-2 that receives a second noise signal and provides the received second noise signal to the signal processing unit 320.

[0250] According to embodiments of the present disclosure, the signal processing unit 320 can generate a noise removal signal based on a noise signal. For example, the signal processing unit 320 may include a noise signal processing unit that generates a noise removal signal based on a noise signal. For example, the signal processing unit 320 may include a first noise signal processing unit 321 that generates a first noise removal signal based on a first noise signal, and a second noise signal processing unit 322 that generates a second noise removal signal based on a second noise signal.

[0251] According to embodiments of this disclosure, the drive signal generation unit 330 can generate a vibration drive signal based on a sound source signal and a noise removal signal. For example, the drive signal generation unit 330 can combine the sound source signal and the noise removal signal to generate a vibration drive signal. For example, the drive signal generation unit 330 can combine the sound source signal input through the input unit 310 with the noise removal signal from the signal processing unit 320 to generate a vibration drive signal. For example, the drive signal generation unit 330 can combine the sound source signal from the first input unit 311, the first noise removal signal from the first noise signal processing unit 321, and the second noise removal signal from the second noise signal processing unit 322 to generate a vibration drive signal.

[0252] Therefore, the sound processing circuit 300 according to the embodiments of the present disclosure can provide a vibration driving signal to the vibration device 200, the vibration driving signal including a sound source signal corresponding to the sound source and a noise removal signal having a phase opposite to the noise, so that the vibration device 200 can vibrate, thereby the vibration of the vibration device 200 can provide a sound source to the user through bone conduction.

[0253] Noise near the user can be transmitted to the user via air conduction based on the vibration of the eardrum, and the vibration of the eardrum based on noise can be canceled and removed by the vibration of the vibration device 200 based on the noise removal signal. Therefore, the user can receive only the sound source generated by the vibration of the vibration device 200 based on the sound source signal corresponding to the sound source through bone conduction, and thus can hear a high-quality sound source. It should be noted that the term "nearby" can refer to the range in which the microphone device 100 can receive noise similar to the noise occurring at the user's ear or the generated sound can be easily received by the user, for example, the range from 0 to 50 cm, specifically, the range from 0 to 20 cm, more specifically, the range from 0 to 10 cm, but the embodiments of this disclosure are not limited thereto.

[0254] Figure 6 A vibration generating device according to another embodiment of the present disclosure is illustrated. Figure 7 Examples Figure 6 Vibration equipment. Figure 8 It is along Figure 7 The cross-sectional view taken from line II-II' is shown. Figure 6 Examples are shown by modifying Figure 1 The illustrated vibration generating device is implemented by configuring the vibration generator. Therefore, in the following text, repeated descriptions of components other than the vibration generator and its associated elements are omitted or will be given briefly.

[0255] Reference Figures 6 to 8 According to another embodiment of the present disclosure, the vibration generator 210 may include a plurality of vibration structures.

[0256] For example, a vibration generator 210 according to another embodiment of the present disclosure may include a plurality of vibration structures 210A and 210B that are electrically disconnected from each other and spaced apart from each other in a first direction X (or a transverse direction). The plurality of vibration structures 210A and 210B may be electrically disconnected from each other and may be spaced apart from each other in a second direction Y (or a longitudinal direction).

[0257] Each of the plurality of vibrating structures 210A and 210B can alternately and / or repeatedly contract and expand to vibrate based on the piezoelectric effect (or piezoelectric properties). A vibration generator 210 according to another embodiment of this disclosure can alternately and / or repeatedly contract and expand to vibrate in the thickness direction Z based on the inverse piezoelectric effect (or piezoelectric properties), thereby directly vibrating a target object. The vibration generator 210 may include a plurality of vibrating structures 210A and 210B arranged or laid flat at intervals. For example, the vibration generator 210 may be referred to as a vibration array, a vibration array portion, a vibration module array portion, a vibration array structure, a laid vibration array, a laid vibration array module, or a laid vibration membrane, but embodiments of this disclosure are not limited thereto.

[0258] Each of the plurality of vibration structures 210A and 210B according to another embodiment of the present disclosure may have a quadrilateral shape or a square shape, but the embodiments of the present disclosure are not limited thereto. For example, each of the plurality of vibration structures 210A and 210B may have a quadrilateral shape with a width of about 5 cm or greater. For example, each of the plurality of vibration structures 210A and 210B may have a square shape with a size of 5 cm × 5 cm or greater.

[0259] Multiple vibrating structures 210A and 210B can be arranged or tiled on the same plane in an i×j configuration. Therefore, based on the tiling of multiple vibrating structures 210A and 210B with relatively small dimensions, the vibration generator 210 can have an enlarged area. For example, i can be the number of vibrating structures arranged in the first direction X or can be a natural number of 2 or greater, and j can be the number of vibrating structures arranged in the second direction Y or can be a natural number of 1 or greater, which may be the same as or different from i.

[0260] Multiple vibrating structures 210A and 210B can be arranged or tiled at certain intervals (or distances), thus enabling them to be driven as a single, integrated vibrating device (or individual vibrating device) without requiring independent driving. According to another embodiment of this disclosure, the separation distance D1 between the multiple vibrating structures 210A and 210B relative to the first direction X can be set differently based on the size of the object or user. This can thereby increase the reproduction frequency band and sound pressure level characteristics of the sound generated by the individual vibrations of the multiple vibrating structures 210A and 210B.

[0261] According to another embodiment of the present disclosure, the vibration generator 210 may include a first vibration structure 210A and a second vibration structure 210B.

[0262] According to embodiments of this disclosure, the first vibration structure 210A and the second vibration structure 210B may be spaced apart from each other in the first direction X and may be electrically disconnected from each other. For example, the first vibration structure 210A and the second vibration structure 210B may be arranged in a 2×1 configuration or laid flat.

[0263] According to embodiments of this disclosure, the first vibration structure 210A can be disposed in the third region of the object, and the second vibration structure 210B can be disposed in the fourth region of the object. For example, the third region of the object can be the region of the object corresponding to the user's left ear, and the fourth region of the object can be the region of the object corresponding to the user's right ear.

[0264] According to embodiments of this disclosure, the first vibration structure 210A can vibrate based on a vibration drive signal from the sound processing circuit 300 to vibrate a third region of an object (or the user's left ear). For example, the first vibration structure 210A can vibrate based on a vibration drive signal to vibrate the user's left ear or a region near the user's left ear. For example, the first vibration structure 210A can vibrate based on a first vibration drive signal (or a left vibration drive signal or a first sound signal) from the sound processing circuit 300 to vibrate the user's left ear or a region near the user's left ear (or the third region of an object).

[0265] According to embodiments of this disclosure, the second vibration structure 210B can vibrate based on a vibration drive signal from the sound processing circuit 300 to vibrate a fourth region of the object (or the user's right ear). For example, the second vibration structure 210B can vibrate based on a vibration drive signal to vibrate the user's right ear or a region near the user's right ear. For example, the second vibration structure 210B can vibrate based on a second vibration drive signal (or a right vibration drive signal or a second sound signal) from the sound processing circuit 300 to vibrate the user's right ear or a region near the user's right ear (or the fourth region of the object).

[0266] According to embodiments of this disclosure, each of the first vibration drive signal and the second vibration drive signal provided to the first vibration structure 210A and the second vibration structure 210B may be the same or different.

[0267] In another embodiment of the vibration generating device according to the present disclosure, the sound processing circuit 300 can generate a vibration driving signal based on the sound source signal and the noise signal, and can provide the generated vibration driving signal to the vibration device 200 to make the vibration device 200 vibrate.

[0268] According to embodiments of this disclosure, the sound processing circuit 300 can provide a vibration driving signal to each of the first vibration structure 210A and the second vibration structure 210B. For example, the sound processing circuit 300 can provide a first vibration driving signal to the first vibration structure 210A and a second vibration driving signal to the second vibration structure 210B.

[0269] According to embodiments of the present disclosure, the sound processing circuit 300 can provide a first vibration drive signal generated based on the sound source signal and the first noise removal signal to the first vibration structure 210A, and can provide a second vibration drive signal generated based on the sound source signal and the second noise removal signal to the second vibration structure 210B.

[0270] In another embodiment of the vibration generating device according to the present disclosure, the sound processing circuit 300 can generate a first vibration driving signal based on the sound source signal and the first noise removal signal, and can provide the first vibration driving signal to the first vibration structure 210A. Additionally, it can generate a second vibration driving signal based on the sound source signal and the second noise removal signal, and can provide the second vibration driving signal to the second vibration structure 210B.

[0271] Therefore, noise transmitted through air conduction and to the left ear can be canceled and removed by the vibration of the first vibration structure 210A corresponding to the first noise removal signal included in the first vibration drive signal, and noise transmitted through air conduction and to the right ear can be canceled and removed by the vibration of the second vibration structure 210B corresponding to the second noise removal signal included in the second vibration drive signal. Thus, the vibration of the first vibration structure 210A and the second vibration structure 210B corresponding to the sound source signal can be provided to the user, so that the user can hear a high-quality sound source.

[0272] Each of the first vibration structure 210A and the second vibration structure 210B according to another embodiment of the present disclosure may include a vibration portion 211, a first electrode layer E1, and a second electrode layer E2.

[0273] The description of the vibrating part 211, the first electrode layer E1, and the second electrode layer E2 can be referenced above. Figure 2 and Figure 3 The descriptions given are basically the same, so repeated descriptions of them can be omitted or will be briefly introduced.

[0274] According to another embodiment of the present disclosure, the vibration generator 210 may include a first protective member 213 and a second protective member 215.

[0275] The first protective member 213 may be disposed on the first surface of the vibration generator 210. For example, the first protective member 213 may be disposed on the first surface of each of the plurality of vibration structures 210A and 210B. For example, the first protective member 213 may cover the first electrode layer E1 disposed on the first surface of each of the plurality of vibration structures 210A and 210B. Therefore, the first protective member 213 may be commonly connected to the first surface of each of the plurality of vibration structures 210A and 210B or may commonly support the first surface of each of the plurality of vibration structures 210A and 210B. Therefore, the first protective member 213 may protect the first surface or the first electrode layer E1 of each of the plurality of vibration structures 210A and 210B.

[0276] According to another embodiment of this disclosure, the first protective member 213 can be disposed on the first surface of each of the plurality of vibrating structures 210A and 210B via a first adhesive layer 212. For example, the first protective member 213 can be directly disposed on the first surface of each of the plurality of vibrating structures 210A and 210B via a film lamination process using the first adhesive layer 212. Therefore, the plurality of vibrating structures 210A and 210B can be integrated (or disposed) with or laid flat with the first protective member 213 with certain intervals D1 and D2.

[0277] The second protective member 215 may be disposed on the second surface of the vibration generator 210. For example, the second protective member 215 may cover the second electrode layer E2 disposed on the second surface of each of the plurality of vibration structures 210A and 210B. Therefore, the second protective member 215 may be commonly connected to or may commonly support the second surface of each of the plurality of vibration structures 210A and 210B. Thus, the second protective member 215 may protect the second surface or the second electrode layer E2 of each of the plurality of vibration structures 210A and 210B.

[0278] According to another embodiment of this disclosure, the second protective member 215 can be disposed on the second surface of each of the plurality of vibrating structures 210A and 210B via a second adhesive layer 214. For example, the second protective member 215 can be disposed directly on the second surface of each of the plurality of vibrating structures 210A and 210B via a thin film lamination process using the second adhesive layer 214. Therefore, the plurality of vibrating structures 210A and 210B can be integrated (or disposed) with or laid flat with the second protective member 215 to have certain intervals D1 and D2.

[0279] Each of the first protective member 213 and the second protective member 215 according to embodiments of the present disclosure may include a plastic film. For example, each of the first protective member 213 and the second protective member 215 may be a polyimide (PI) film or a polyethylene terephthalate (PET) film, but embodiments of the present disclosure are not limited thereto.

[0280] The first adhesive layer 212 may be disposed on the first surface of each of the plurality of vibrating structures 210A and 210B and between the plurality of vibrating structures 210A and 210B. For example, the first adhesive layer 212 may be formed on the rear surface (or inner surface) of the first surface of the first protective member 213 facing the vibration generator 210, disposed on the first surface of each of the plurality of vibrating structures 210A and 210B, and filled between the plurality of vibrating structures 210A and 210B.

[0281] The second adhesive layer 214 may be disposed on the second surface of each of the plurality of vibrating structures 210A and 210B and between the plurality of vibrating structures 210A and 210B. For example, the second adhesive layer 214 may be formed on the front surface (or inner surface) of the second surface of the second protective member 215 facing the vibration generator 210, disposed on the second surface of each of the plurality of vibrating structures 210A and 210B, and filled between the plurality of vibrating structures 210A and 210B.

[0282] The first adhesive layer 212 and the second adhesive layer 214 can be connected to each other between the plurality of vibrating structures 210A and 210B. Therefore, each of the plurality of vibrating structures 210A and 210B can be surrounded by the first adhesive layer 212 and the second adhesive layer 214. For example, the first adhesive layer 212 and the second adhesive layer 214 can completely surround all of the plurality of vibrating structures 210A and 210B. For example, the first adhesive layer 212 and the second adhesive layer 214 can be referred to as covering members, but embodiments of the present disclosure are not limited thereto. When each of the first adhesive layer 212 and the second adhesive layer 214 is a covering member, a first protective member 213 can be disposed at a first surface of the covering member, and a second protective member 215 can be disposed at a second surface of the covering member. For example, for ease of description, the first adhesive layer 212 and the second adhesive layer 214 are illustrated as a first adhesive layer 212 and a second adhesive layer 214, but embodiments of the present disclosure are not limited thereto and can be configured as a single adhesive layer.

[0283] Each of the first adhesive layer 212 and the second adhesive layer 214 according to another embodiment of the present disclosure may include an electrically insulating material that is adhesive and may include a material capable of being compressed and decompressed. For example, each of the first adhesive layer 212 and the second adhesive layer 214 may include an epoxy resin, an acrylic resin, a silicone resin, or a polyurethane resin, but embodiments of the present disclosure are not limited thereto.

[0284] According to another embodiment of the present disclosure, the vibration device 200 or vibration generator 210 may further include a first power line PL1, a second power line PL2, and a pad portion 201.

[0285] A first power line PL1 may be disposed at the first protective member 213. For example, the first power line PL1 may be disposed on the rear surface of the first protective member 213 facing the first surface of the vibration generator 210. The first power line PL1 may be electrically connected to the first electrode layer E1 of each of the plurality of vibration structures 210A and 210B. For example, the first power line PL1 may be directly electrically connected to the first electrode layer E1 of each of the plurality of vibration structures 210A and 210B. For example, the first power line PL1 may be electrically connected to the first electrode layer E1 of each of the plurality of vibration structures 210A and 210B through an anisotropic conductive film. As another embodiment of the present disclosure, the first power line PL1 may be electrically connected to the first electrode layer E1 of each of the plurality of vibration structures 210A and 210B through conductive material (or particles) included in the first adhesive layer 212.

[0286] According to another embodiment of this disclosure, the first power line PL1 may include a first upper power line 213a and a second upper power line 213b disposed along a second direction Y. For example, the first upper power line 213a may be electrically connected to the first electrode layer E1 of the first vibration structure 210A in the plurality of vibration structures 210A and 210B. The second upper power line 213b may be electrically connected to the first electrode layer E1 of the second vibration structure 210B in the plurality of vibration structures 210A and 210B.

[0287] The second power line PL2 can be disposed at the second protective member 215. For example, the second power line PL2 can be disposed on the front surface of the second protective member 215 facing the second surface of the vibration generator 210. The second power line PL2 can be electrically connected to the second electrode layer E2 of each of the plurality of vibration structures 210A and 210B. For example, the second power line PL2 can be directly electrically connected to the second electrode layer E2 of each of the plurality of vibration structures 210A and 210B. For example, the second power line PL2 can be electrically connected to the second electrode layer E2 of each of the plurality of vibration structures 210A and 210B through an anisotropic conductive film. As another embodiment of the present disclosure, the second power line PL2 can be electrically connected to the second electrode layer E2 of each of the plurality of vibration structures 210A and 210B through a conductive material (or particles) included in the second adhesive layer 214.

[0288] According to another embodiment of this disclosure, the second power line PL2 may include a first lower power line 215a and a second lower power line 215b disposed along a second direction Y. For example, the first lower power line 215a may be electrically connected to the second electrode layer E2 of the first vibration structure 210A in the plurality of vibration structures 210A and 210B. The second lower power line 215b may be electrically connected to the second electrode layer E2 of the second vibration structure 210B in the plurality of vibration structures 210A and 210B.

[0289] The pad portion 201 can be electrically connected to a first power line PL1 and a second power line PL2. The pad portion 201 can be disposed in the vibration generator 210 to be electrically connected to a portion (or one end) of each of the first power line PL1 and the second power line PL2. According to embodiments of the present disclosure, the pad portion 201 may include a first pad electrode and a second pad electrode. The first pad electrode can be electrically connected to a portion of the first power line PL1. The second pad electrode can be electrically connected to a portion of the second power line PL2.

[0290] The first pad electrode can be commonly connected to a portion of each of the first power supply line 213a and the second power supply line 213b of the first power supply line PL1. For example, a portion of each of the first power supply line 213a and the second power supply line 213b can branch off from the first pad electrode.

[0291] The second pad electrode can be connected together to a portion of each of the first lower power line 215a and the second lower power line 215b of the second power line PL2. For example, a portion of each of the first lower power line 215a and the second lower power line 215b can branch from the second pad electrode.

[0292] According to another embodiment of the present disclosure, the vibration device 200 or vibration generator 210 may also include a flexible cable 220.

[0293] The flexible cable 220 can be electrically connected to the pad portion 201 provided in the vibration device 200 or vibration generator 210, and can provide the vibration drive signal (or sound signal) provided from the sound processing circuit to the vibration device 200 or vibration generator 210.

[0294] According to another embodiment of the present disclosure, the flexible cable 220 may include a first terminal and a second terminal. The first terminal may be electrically connected to a first pad electrode of the pad portion 201. The second terminal may be electrically connected to a second pad electrode of the pad portion 201. For example, the flexible cable 220 may be configured as a flexible printed circuit cable or a flexible flat cable, but embodiments of the present disclosure are not limited thereto.

[0295] According to another embodiment of this disclosure, the vibration generator 210 may further include a plate 216. The plate 216 may be referenced above. Figure 2 and Figure 3 The description of plate 216 is the same, so its description is omitted.

[0296] Figure 9 A vibration generating device according to another embodiment of the present disclosure is illustrated. Figure 9 Examples are shown by modifying Figure 1 The embodiment is implemented by configuring the vibration device in the vibration generating device shown. Therefore, in the following text, repeated descriptions of components other than the vibration device and its associated elements are omitted or will be given briefly.

[0297] Reference Figure 9 According to another embodiment of the present disclosure, the vibration generating device 200 may include a plurality of vibration generators. For example, the vibration generating device 200 may include a first vibration generator (or left vibration generator) 210-1 disposed at a third region of the object and vibrating based on a vibration drive signal (or sound signal), and a second vibration generator (or right vibration generator) 210-2 disposed at a fourth region of the object and vibrating based on a vibration drive signal. For example, each of the first vibration generator 210-1 and the second vibration generator 210-2 may be configured as one or more.

[0298] According to embodiments of this disclosure, the first vibration generator 210-1 and the second vibration generator 210-2 may include components similar to those described above. Figures 2 to 4F The vibration generator 210 described uses the same elements. For example, the third region of the object may be the region of the object corresponding to the user's left ear, and the fourth region of the object may be the region of the object corresponding to the user's right ear.

[0299] According to embodiments of this disclosure, each of the first vibration generator 210-1 and the second vibration generator 210-2 may include a plurality of vibration structures 210A and 210B. For example, the first vibration generator 210-1 may include a first vibration structure 210A, while the second vibration generator 210-2 may include a second vibration structure 210B. For example, each of the first vibration structure 210A and the second vibration structure 210B may be configured as one or more.

[0300] According to embodiments of this disclosure, the first vibration generator 210-1 can vibrate based on a vibration drive signal from the sound processing circuit 300 to vibrate the user's left ear. For example, the first vibration generator 210-1 can vibrate based on a vibration drive signal to vibrate the user's left ear and the area near the user's left ear. For example, the first vibration generator 210-1 can vibrate based on a first vibration drive signal (or a left vibration drive signal or a first sound signal) to vibrate the user's left ear or the area near the user's left ear.

[0301] According to embodiments of this disclosure, the second vibration generator 210-2 can vibrate based on a vibration drive signal from the sound processing circuit 300 to vibrate the user's right ear. For example, the second vibration generator 210-2 can vibrate based on a vibration drive signal to vibrate the user's right ear and the area near the user's right ear. For example, the second vibration generator 210-2 can vibrate based on a second vibration drive signal (or a right vibration drive signal or a second sound signal) to vibrate the user's right ear or the area near the user's right ear.

[0302] According to embodiments of this disclosure, the first vibration drive signal and the second vibration drive signal provided to the first vibration generator 210-1 and the second vibration generator 210-2 may be the same or different. For example, the first vibration drive signal may be provided to a plurality of first vibration structures 210A of the first vibration generator 210-1, while the second vibration drive signal may be provided to a plurality of second vibration structures 210B of the second vibration generator 210-2.

[0303] In another embodiment of the vibration generating device according to this disclosure, the sound processing circuit 300 can generate a vibration driving signal based on a sound source signal and a noise signal, and can provide the generated vibration driving signal to the vibration device 200 to cause the vibration device 200 to vibrate. For example, the sound processing circuit 300 can provide vibration driving signals to the first vibration generator 210-1 and the second vibration generator 210-2 of the vibration device 200. For example, the sound processing circuit 300 can provide a first vibration driving signal to the first vibration generator 210-1 and can provide a second vibration driving signal to the second vibration generator 210-2.

[0304] According to an embodiment of the present disclosure, the sound processing circuit 300 can provide a first vibration driving signal generated based on the sound source signal and the first noise removal signal to the first vibration generator 210-1, and can provide a second vibration driving signal generated based on the sound source signal and the second noise removal signal to the second vibration generator 210-2.

[0305] In another embodiment of the vibration generating device according to the present disclosure, the sound processing circuit 300 can generate a first vibration driving signal based on the sound source signal and the first noise removal signal, and can provide the first vibration driving signal to the first vibration generator 210-1. In addition, it can generate a second vibration driving signal based on the sound source signal and the second noise removal signal, and can provide the second vibration driving signal to the second vibration generator 210-2.

[0306] Therefore, noise transmitted to the left ear via air conduction can be canceled and removed by the vibration of the first vibration generator 210-1 corresponding to the first noise removal signal included in the first vibration drive signal, and noise transmitted to the right ear via air conduction can be canceled and removed by the vibration of the second vibration generator 210-2 corresponding to the second noise removal signal included in the second vibration drive signal. Thus, the vibration of the first vibration generator 210-1 and the second vibration generator 210-2 corresponding to the sound source signal can be provided to the user, so that the user can hear a high-quality sound source.

[0307] Figure 10 A vehicle according to an embodiment of the present disclosure is illustrated. Figures 11 to 13 Examples Figure 10 The headrest.

[0308] Figure 10 An example of a vehicle seat according to an embodiment of the present disclosure is shown.

[0309] Reference Figure 1 and Figures 10 to 13 The vibration generating device according to embodiments of the present disclosure can be installed at the seats of a vehicle. For example, the vibration generating device can be installed in all seats of the vehicle, including the driver's seat and the passenger seat.

[0310] The vibration device 200 can be installed in the headrest H of the seat. The microphone device 100 can be installed adjacent to the vibration device 200, and can be installed, for example, in the headrest H of the seat. The sound processing circuit 300 can be installed in the seat, for example, in the headrest H, backrest B, and saddle S of the seat.

[0311] For example, a headrest H may include a support area SA and a peripheral area PA. The support area SA is located in the central region of the headrest H relative to the center line CL and supports the user's (or occupant's) head, while the peripheral area PA is located around the perimeter of the headrest H. For example, the support area SA may include a first support area (or left support area) SA1 and a second support area (or right support area) SA2, where SA1 is the left region relative to the center line CL and SA2 is the right region relative to the center line CL. For example, the first support area SA1 may be the region where the user's left ear is located, and the second support area SA2 may be the region where the user's right ear is located. For example, the peripheral area PA may include a first peripheral area (or left peripheral area) PA1 as the left perimeter of the headrest H and a second peripheral area (or right peripheral area) PA2 as the right perimeter of the headrest H. For example, the first peripheral area PA1 may be located to the left of the first support area SA1, and the second peripheral area PA2 may be located to the right of the second support area SA2.

[0312] Vehicles according to embodiments of this disclosure may include Figure 1 The vibration generating device is shown. A vehicle according to an embodiment of this disclosure may include a microphone device 100 and a vibration device 200 disposed at the headrest H.

[0313] According to embodiments of this disclosure, the microphone device 100 may include a first microphone 110 disposed in a first peripheral region PA1 and a second microphone 120 disposed in a second peripheral region PA2. For example, the first microphone 110 may be disposed in the first peripheral region PA1 and may receive noise in the first peripheral region PA1. For example, the first microphone 110 may receive noise near the user's left ear. For example, the second microphone 120 may be disposed in the second peripheral region PA2 and may receive noise in the second peripheral region PA2. For example, the second microphone 120 may receive noise near the user's right ear. The first microphone 110 and the second microphone 120 may convert the received noise into electrical signals and may provide noise signals to the sound processing circuit 300.

[0314] Reference Figure 11 The vibration device 200 may be disposed at the first support region SA1. For example, the vibration device 200 may include a vibration generator 210 disposed at the first support region SA1, and the vibration generator 210 may include one or more vibration structures 210A.

[0315] The vibration device 200 can vibrate based on a vibration drive signal from the sound processing circuit 300. For example, the vibration generator 210 or the vibration structure 210A can vibrate based on a vibration drive signal from the sound processing circuit 300 to vibrate the first support region SA1. For example, the vibration generator 210 or the vibration structure 210A can vibrate based on a vibration drive signal from the sound processing circuit 300 to vibrate the left ear of a user located in the first support region SA1. For example, the vibration generator 210 or the vibration structure 210A can vibrate based on a vibration drive signal from the sound processing circuit 300 to vibrate the left ear of a user located in the first support region SA1 and the area near the user's left ear.

[0316] Reference Figure 12 The vibration device 200 may be disposed at the second support region SA2. For example, the vibration device 200 may include a vibration generator 210 disposed at the second support region SA2. For example, the vibration generator 210 may include a vibration structure 210B disposed at the second support region SA2.

[0317] The vibration device 200 can vibrate based on a vibration drive signal from the sound processing circuit 300. For example, the vibration generator 210 or the vibration structure 210B can vibrate based on a vibration drive signal from the sound processing circuit 300 to vibrate the second support region SA2. For example, the vibration generator 210 or the vibration structure 210B can vibrate based on a vibration drive signal from the sound processing circuit 300 to vibrate the right ear of a user located in the second support region SA2. For example, the vibration generator 210 or the vibration structure 210B can vibrate based on a vibration drive signal from the sound processing circuit 300 to vibrate the right ear of a user located in the second support region SA2 and the area near the user's right ear.

[0318] Reference Figure 13 The vibration device 200 may be disposed at the first support region SA1 and the second support region SA2. For example, the vibration device 200 may include a vibration generator 210 disposed at the first support region SA1 and the second support region SA2. For example, the vibration generator 210 may include one or more vibration structures 210A disposed at the first support region SA1 and the second support region SA2.

[0319] The vibration device 200 can vibrate based on a vibration drive signal from the sound processing circuit 300. For example, the vibration generator 210 or vibration structure 210A can vibrate based on a vibration drive signal from the sound processing circuit 300 to vibrate the first support region SA1 and the second support region SA2. For example, the vibration generator 210 or vibration structure 210A can vibrate based on a vibration drive signal from the sound processing circuit 300 to vibrate the left and right ears of a user located at the first support region SA1 and the second support region SA2. For example, the vibration generator 210 or vibration structure 210A can vibrate based on a vibration drive signal from the sound processing circuit 300 to vibrate the user's left ear, the area near the user's left ear, the user's right ear, and the area near the user's right ear located at the first support region SA1 and the second support region SA2.

[0320] Figure 14 and Figure 15 An example of a headrest for a vehicle according to another embodiment of the present disclosure is shown. Figure 14 and Figure 15 Examples are shown by modifying Figure 10 The embodiment shown is implemented by configuring the headrest of the vehicle. Therefore, in the following text, repeated descriptions of components other than the vibration device and its associated elements are omitted or will be given briefly.

[0321] According to another embodiment of this disclosure, the vehicle may include Figure 6 Vibration generating equipment.

[0322] Reference Figure 6 , Figure 14 and Figure 15 According to another embodiment of the present disclosure, the vehicle may include a microphone device 100 and a vibration device 200 disposed at the headrest H.

[0323] According to embodiments of this disclosure, the microphone device 100 may include a first microphone 110 disposed in a first peripheral region PA1 and a second microphone 120 disposed in a second peripheral region PA2. For example, the first microphone 110 may be disposed in the first peripheral region PA1 and may receive noise in the first peripheral region PA1. For example, the first microphone 110 may receive noise near the user's left ear. For example, the second microphone 120 may be disposed in the second peripheral region PA2 and may receive noise in the second peripheral region PA2. For example, the second microphone 120 may receive noise near the user's right ear. The first microphone 110 and the second microphone 120 may convert the received noise into electrical signals and may provide noise signals to the sound processing circuit 300.

[0324] The vibration device 200 can vibrate the first support region SA1 and the second support region SA2 based on a vibration drive signal from the sound processing circuit 300, and may include a vibration generator 210. The vibration generator 210 may include a plurality of vibration structures 210A and 210B.

[0325] Reference Figure 14 The vibration generator 210 may include a first vibration structure 210A disposed at a first support region SA1 and a second vibration structure 210B disposed at a second support region SA2. The first vibration structure 210A may vibrate based on a first vibration drive signal to cause the first support region SA1 to vibrate. The second vibration structure 210B may vibrate based on a second vibration drive signal to cause the second support region SA2 to vibrate.

[0326] According to embodiments of this disclosure, a first vibration structure 210A can vibrate based on a first vibration drive signal to vibrate the left ear of a user located in the first support region SA1. For example, a first vibration structure 210A can vibrate based on the first vibration drive signal to vibrate the left ear of the user located in the first support region SA1 and the area near the user's left ear.

[0327] According to embodiments of this disclosure, a second vibration structure 210B can vibrate based on a second vibration drive signal to vibrate the right ear of a user located in the second support region SA2. For example, a second vibration structure 210B can vibrate based on a second vibration drive signal to vibrate the right ear of the user located in the second support region SA2 and the area near the user's right ear.

[0328] According to embodiments of this disclosure, a first vibration structure 210A and a second vibration structure 210B can be configured symmetrically with respect to the center line CL, but embodiments of this disclosure are not limited thereto. For example, a first vibration structure 210A and a second vibration structure 210B can be arranged parallel to each other along a first direction (or the width direction of the headrest) X, but embodiments of this disclosure are not limited thereto. For example, a first vibration structure 210A and a second vibration structure 210B can be arranged on the same plane in the support region SA, but embodiments of this disclosure are not limited thereto.

[0329] Reference Figure 15The vibration generator 210 may include a plurality of first vibration structures 210A disposed at a first support region SA1 and a plurality of second vibration structures 210B disposed at a second support region SA2. The plurality of first vibration structures 210A may vibrate based on a first vibration drive signal to vibrate the first support region SA1. The plurality of second vibration structures 210B may vibrate based on a second vibration drive signal to vibrate the second support region SA2. For example, the vibration generator 210 may include two first vibration structures 210A and two second vibration structures 210B, but embodiments of this disclosure are not limited thereto. For example, the vibration generator 210 may include three or more first vibration structures 210A and three or more second vibration structures 210B. For example, the first vibration drive signal may be provided jointly to the plurality of first vibration structures 210A, and the second vibration drive signal may be provided jointly to the plurality of second vibration structures 210B.

[0330] According to embodiments of this disclosure, a plurality of first vibration structures 210A can vibrate based on a first vibration drive signal to vibrate the left ear of a user located in the first support region SA1. For example, the plurality of first vibration structures 210A can vibrate based on the first vibration drive signal to vibrate the left ear of the user and the area near the user's left ear located in the first support region SA1.

[0331] According to embodiments of this disclosure, a plurality of second vibration structures 210B can vibrate based on a second vibration drive signal to vibrate the right ear of a user located at the second support region SA2. For example, the plurality of second vibration structures 210B can vibrate based on a second vibration drive signal to vibrate the right ear of the user located at the second support region SA2 and the area near the user's right ear.

[0332] According to embodiments of this disclosure, a plurality of first vibration structures 210A may be arranged in a second direction (or the longitudinal direction of the headrest) Y. For example, a plurality of first vibration structures 210A may be arranged in a first direction X. For example, a plurality of first vibration structures 210A may be arranged in a first direction X and a second direction Y. For example, a plurality of second vibration structures 210B may be arranged in the second direction Y. For example, a plurality of second vibration structures 210B may be arranged along the first direction X. For example, a plurality of second vibration structures 210B may be arranged along the first direction X and the second direction Y. For example, the plurality of first vibration structures 210A and the plurality of second vibration structures 210B may be configured symmetrically with respect to the center line CL, but embodiments of this disclosure are not limited thereto.

[0333] According to embodiments of this disclosure, a plurality of first vibration structures 210A may be arranged on the same plane in the first support region SA1, but embodiments of this disclosure are not limited thereto. For example, a plurality of second vibration structures 210B may be arranged on the same plane in the second support region SA2, but embodiments of this disclosure are not limited thereto. For example, a plurality of first vibration structures 210A and a plurality of second vibration structures 210B may be arranged on the same plane in the support region SA, but embodiments of this disclosure are not limited thereto.

[0334] According to embodiments of this disclosure, a plurality of first vibration structures 210A can be arranged or laid out in an i×j pattern on the same plane in the first support region SA1. For example, a plurality of second vibration structures 210B can be arranged or laid out in an i×j pattern on the same plane in the second support region SA2. For example, i can be the number of vibration structures arranged in the first direction X and can be a natural number of 1 or greater, and j can be the number of vibration structures arranged in the second direction Y and can be a natural number of 2 or greater and can be equal to or different from i. For example, i can be a natural number of 2 or greater, and j can be a natural number of 1 or greater and can be equal to or different from i. For example, all vibration structures 210A and 210B included in the vibration device 200 can be arranged or laid out in an i×j pattern on the same plane in the support region SA. For example, i can be the number of vibration structures arranged in the first direction X and can be a natural number of 2 or greater, and j can be the number of vibration structures arranged in the second direction Y and can be a natural number of 2 or greater and equal to or different from i.

[0335] Figures 16 to 19 An example of a headrest for a vehicle according to another embodiment of the present disclosure is shown. Figures 16 to 19 Examples are shown by modifying Figure 10 The embodiment shown is implemented by configuring the headrest of the vehicle. Therefore, in the following text, repeated descriptions of components other than the vibration device and its associated elements are omitted or will be given briefly.

[0336] According to another embodiment of this disclosure, the vehicle may include Figure 9 Vibration generating equipment.

[0337] Reference Figure 6 and Figures 16 to 19 According to another embodiment of the present disclosure, the vehicle may include a microphone device 100 and a vibration device 200 disposed in the headrest H.

[0338] According to embodiments of this disclosure, the microphone device 100 may include a first microphone 110 disposed in a first peripheral region PA1 and a second microphone 120 disposed in a second peripheral region PA2. For example, the first microphone 110 may be disposed in the first peripheral region PA1 and may receive noise in the first peripheral region PA1. For example, the first microphone 110 may receive noise near the user's left ear. For example, the second microphone 120 may be disposed in the second peripheral region PA2 and may receive noise in the second peripheral region PA2. For example, the second microphone 120 may receive noise near the user's right ear. The first microphone 110 and the second microphone 120 may convert the received noise into electrical signals and may provide noise signals to the sound processing circuit 300.

[0339] The vibration device 200 can vibrate the first support region SA1 and the second support region SA2 based on a vibration drive signal from the sound processing circuit 300, and can include a plurality of vibration generators 210. For example, the vibration device 200 may include a first vibration generator 210-1 disposed at the first support region SA1 and a second vibration generator 210-2 disposed at the second support region SA2. For example, the first vibration generator 210-1 can vibrate the first support region SA1 based on a first vibration drive signal, and the second vibration generator 210-2 can vibrate the second support region SA2 based on a second vibration drive signal. For example, the vibration device 200 may include one or more first vibration generators 210-1 and one or more second vibration generators 210-2. For example, the first vibration generator 210-1 may include one or more first vibration structures 210A, while the second vibration generator 210-2 may include one or more second vibration structures 210B.

[0340] Reference Figure 16 The vibration device 200 may include a first vibration generator 210-1 disposed at a first support region SA1 and a second vibration generator 210-2 disposed at a second support region SA2. The first vibration generator 210-1 may vibrate based on a first vibration drive signal to vibrate the first support region SA1. The second vibration generator 210-2 may vibrate based on a second vibration drive signal to vibrate the second support region SA2. The first vibration generator 210-1 may include a first vibration structure 210A disposed at the first support region SA1, and the second vibration generator 210-2 may include a second vibration structure 210B disposed at the second support region SA2.

[0341] According to embodiments of this disclosure, a first vibration structure 210A can vibrate based on a first vibration drive signal to cause a first support region SA1 to vibrate. For example, a first vibration structure 210A can cause the left ear of a user located in the first support region SA1 to vibrate. For example, a first vibration structure 210A can cause the left ear of a user located in the first support region SA1 and the area near the user's left ear to vibrate.

[0342] According to embodiments of this disclosure, a second vibration structure 210B can vibrate based on a second vibration drive signal to cause the second support region SA2 to vibrate. For example, a second vibration structure 210B can cause the right ear of a user located at the second support region SA2 to vibrate. For example, a second vibration structure 210B can cause the right ear of a user located at the second support region SA2 and the area near the user's right ear to vibrate.

[0343] According to embodiments of this disclosure, a first vibration generator 210-1 and a second vibration generator 210-2 may be configured symmetrically with respect to the center line CL, but embodiments of this disclosure are not limited thereto. For example, a first vibration generator 210-1 and a second vibration generator 210-2 may be arranged parallel to each other along the first direction X, but embodiments of this disclosure are not limited thereto. For example, a first vibration generator 210-1 and a second vibration generator 210-2 may be arranged on the same plane in the support region SA, but embodiments of this disclosure are not limited thereto.

[0344] According to embodiments of this disclosure, a first vibration structure 210A and a second vibration structure 210B can be configured symmetrically with respect to the center line CL, but embodiments of this disclosure are not limited thereto. For example, a first vibration structure 210A and a second vibration structure 210B can be arranged parallel to each other along the first direction X, but embodiments of this disclosure are not limited thereto. For example, a first vibration structure 210A and a second vibration structure 210B can be arranged on the same plane in the support region SA, but embodiments of this disclosure are not limited thereto.

[0345] Reference Figure 17 The vibration device 200 may include a plurality of first vibration generators 210-1 disposed at a first support region SA1 and a plurality of second vibration generators 210-2 disposed at a second support region SA2. For example, the plurality of first vibration generators 210-1 may vibrate based on a first vibration drive signal to vibrate the first support region SA1. The plurality of second vibration generators 210-2 may vibrate based on a second vibration drive signal to vibrate the second support region SA2.

[0346] According to embodiments of this disclosure, the vibration device 200 may include two first vibration generators 210-1 and two second vibration generators 210-2, but the embodiments of this disclosure are not limited thereto. For example, the vibration device 200 may include three or more first vibration generators 210-1 and three or more second vibration generators 210-2. For example, a first vibration drive signal may be provided to multiple first vibration generators 210-1, and a second vibration drive signal may be provided to multiple second vibration generators 210-2.

[0347] According to embodiments of this disclosure, each of the plurality of first vibration generators 210-1 may include a first vibration structure 210A disposed at a first support region SA1, and each of the plurality of second vibration generators 210-2 may include a second vibration structure 210B disposed at a second support region SA2. For example, a first vibration drive signal may be provided jointly to the first vibration structure 210A of each of the plurality of first vibration generators 210-1, and a second vibration drive signal may be provided jointly to the second vibration structure 210B of each of the plurality of second vibration generators 210-2.

[0348] According to embodiments of this disclosure, the first vibration structure 210A of each of the plurality of first vibration generators 210-1 can vibrate based on a first vibration drive signal to cause the first support region SA1 to vibrate. For example, the first vibration structure 210A of each of the plurality of first vibration generators 210-1 can cause the left ear of a user located at the first support region SA1 to vibrate. For example, the first vibration structure 210A of each of the plurality of first vibration generators 210-1 can cause the left ear of a user and the area near the user's left ear located at the first support region SA1 to vibrate.

[0349] According to embodiments of this disclosure, the second vibration structure 210B of each of the plurality of second vibration generators 210-2 can vibrate based on a second vibration drive signal to cause the second support region SA2 to vibrate. For example, the second vibration structure 210B of each of the plurality of second vibration generators 210-2 can cause the right ear of a user located at the second support region SA2 to vibrate. For example, the second vibration structure 210B of each of the plurality of second vibration generators 210-2 can cause the right ear of a user located at the second support region SA2 and the area near the user's right ear to vibrate.

[0350] According to embodiments of this disclosure, a plurality of first vibration generators 210-1 may be arranged along a second direction Y. For example, a plurality of first vibration generators 210-1 may be arranged along a first direction X. For example, a plurality of first vibration generators 210-1 may be arranged along a first direction X and a second direction Y. For example, a plurality of second vibration generators 210-2 may be arranged along a second direction Y. For example, a plurality of second vibration generators 210-2 may be arranged along a first direction X. For example, a plurality of second vibration generators 210-2 may be arranged along a first direction X and a second direction Y. For example, the plurality of first vibration generators 210-1 and the plurality of second vibration generators 210-2 may be configured symmetrically with respect to a center line CL, but embodiments of this disclosure are not limited thereto.

[0351] According to embodiments of this disclosure, a plurality of first vibration generators 210-1 or a plurality of first vibration structures 210A may be arranged on the same plane in the first support region SA1, but the embodiments of this disclosure are not limited thereto. For example, a plurality of second vibration generators 210-2 or a plurality of second vibration structures 210B may be arranged on the same plane in the second support region SA2, but the embodiments of this disclosure are not limited thereto. For example, a plurality of first vibration generators 210-1 and a plurality of second vibration generators 210-2 may be arranged on the same plane in the support region SA, but the embodiments of this disclosure are not limited thereto. For example, a plurality of first vibration structures 210A and a plurality of second vibration structures 210B may be arranged on the same plane in the support region SA, but the embodiments of this disclosure are not limited thereto.

[0352] According to embodiments of this disclosure, a plurality of first vibration generators 210-1 can be arranged or laid out in an i×j pattern on the same plane in the first support region SA1. For example, a plurality of second vibration generators 210-2 can be arranged or laid out in an i×j pattern on the same plane in the second support region SA2. For example, i can be the number of vibration generators arranged along the first direction X and can be a natural number of 1 or greater, and j can be the number of vibration generators arranged along the second direction Y and can be a natural number of 2 or greater, equal to or different from i. For example, i can be a natural number of 2 or greater, and j can be a natural number of 1 or greater, equal to or different from i. For example, all vibration generators 210-1 and 210-2 included in the vibration device 200 can be arranged or laid out in an i×j pattern on the same plane in the support region SA. For example, i can be the number of vibration generators arranged along the first direction X and can be a natural number of 2 or greater, and j can be the number of vibration generators arranged along the second direction Y and can be a natural number of 2 or greater, equal to or different from i.

[0353] Reference Figure 18The vibration device 200 may include a first vibration generator 210-1 disposed at a first support region SA1 and a second vibration generator 210-2 disposed at a second support region SA2. For example, a first vibration generator 210-1 may vibrate based on a first vibration drive signal to vibrate the first support region SA1. For example, a second vibration generator 210-2 may vibrate based on a second vibration drive signal to vibrate the second support region SA2.

[0354] According to embodiments of this disclosure, a first vibration generator 210-1 may include a plurality of first vibration structures 210A disposed in a first support region SA1, and a second vibration generator 210-2 may include a plurality of second vibration structures 210B disposed in a second support region SA2. For example, a first vibration generator 210-1 may include two first vibration structures 210A and a second vibration generator 210-2 may include two second vibration structures 210B, but this disclosure is not limited thereto. For example, a first vibration generator 210-1 may include three or more first vibration structures 210A and a second vibration generator 210-2 may include three or more second vibration structures 210B. For example, a first vibration drive signal may be provided jointly to a plurality of first vibration structures 210A, and a second vibration drive signal may be provided jointly to a plurality of second vibration structures 210B.

[0355] According to embodiments of this disclosure, each of the plurality of first vibration structures 210A can vibrate based on a first vibration drive signal to cause the first support region SA1 to vibrate. For example, each of the plurality of first vibration structures 210A can cause the left ear of a user located at the first support region SA1 to vibrate. For example, each of the plurality of first vibration structures 210A can cause the left ear of a user located at the first support region SA1 and the area near the user's left ear to vibrate.

[0356] According to embodiments of this disclosure, each of the plurality of second vibration structures 210B can vibrate based on a second vibration drive signal to cause the second support region SA2 to vibrate. For example, each of the plurality of second vibration structures 210B can cause the right ear of a user located at the second support region SA2 to vibrate. For example, each of the plurality of second vibration structures 210B can cause the right ear of the user located at the second support region SA2 and the area near the user's right ear to vibrate.

[0357] According to embodiments of this disclosure, a plurality of first vibration structures 210A may be arranged in a second direction Y. For example, a plurality of first vibration structures 210A may be arranged in a first direction X. For example, a plurality of first vibration structures 210A may be arranged along the first direction X and the second direction Y. For example, a plurality of second vibration structures 210B may be arranged along the second direction Y. For example, a plurality of second vibration structures 210B may be arranged along the first direction X. For example, a plurality of second vibration structures 210B may be arranged along the first direction X and the second direction Y.

[0358] According to embodiments of this disclosure, a first vibration generator 210-1 and a second vibration generator 210-2 may be configured symmetrically with respect to the center line CL, but embodiments of this disclosure are not limited thereto. For example, a plurality of first vibration structures 210A may be arranged on the same plane in the first support region SA1, but embodiments of this disclosure are not limited thereto. For example, a plurality of second vibration structures 210B may be arranged on the same plane in the second support region SA2, but embodiments of this disclosure are not limited thereto. For example, a plurality of first vibration structures 210A and a plurality of second vibration structures 210B may be arranged on the same plane in the support region SA, but embodiments of this disclosure are not limited thereto.

[0359] According to embodiments of this disclosure, a plurality of first vibration structures 210A can be arranged or laid out in an i×j pattern on the same plane in the first support region SA1. For example, a plurality of second vibration structures 210B can be arranged or laid out in an i×j pattern on the same plane in the second support region SA2. For example, i can be the number of vibration structures arranged in the first direction X and can be a natural number of 1 or greater, and j can be the number of vibration structures arranged in the second direction Y and can be a natural number of 2 or greater, equal to or different from i. For example, i can be a natural number of 2 or greater, and j can be a natural number of 1 or greater, equal to or different from i. For example, all vibration structures 210A and 210B included in the vibration device 200 can be arranged or laid out in an i×j pattern on the same plane in the support region SA. For example, i can be the number of vibration structures arranged along the first direction X and can be a natural number of 2 or greater, and j can be the number of vibration structures arranged along the second direction Y and can be a natural number of 2 or greater, equal to or different from i.

[0360] Reference Figure 19The vibration device 200 may include a plurality of first vibration generators 210-1 disposed at a first support region SA1 and a plurality of second vibration generators 210-2 disposed at a second support region SA2. For example, the plurality of first vibration generators 210-1 may vibrate based on a first vibration drive signal to vibrate the first support region SA1. For example, the plurality of second vibration generators 210-2 may vibrate based on a second vibration drive signal to vibrate the second support region SA2.

[0361] According to embodiments of this disclosure, the vibration device 200 may include two first vibration generators 210-1 and two second vibration generators 210-2, but the embodiments of this disclosure are not limited thereto. For example, the vibration device 200 may include three or more first vibration generators 210-1 and three or more second vibration generators 210-2. For example, a first vibration drive signal may be provided to multiple first vibration generators 210-1, and a second vibration drive signal may be provided to multiple second vibration generators 210-2.

[0362] According to embodiments of this disclosure, each of the plurality of first vibration generators 210-1 may include a plurality of first vibration structures 210A disposed at a first support region SA1, and each of the plurality of second vibration generators 210-2 may include a plurality of second vibration structures 210B disposed at a second support region SA2. For example, each of the plurality of first vibration generators 210-1 may include two first vibration structures 210A and each of the plurality of second vibration generators 210-2 may include two second vibration structures 210B, but this disclosure is not limited thereto. For example, each of the plurality of first vibration generators 210-1 may include three or more first vibration structures 210A. For example, each of the plurality of second vibration generators 210-2 may include three or more second vibration structures 210B. For example, a first vibration drive signal may be provided jointly to the plurality of first vibration structures 210A of each of the plurality of first vibration generators 210-1, and a second vibration drive signal may be provided jointly to the plurality of second vibration structures 210B of each of the plurality of second vibration generators 210-2.

[0363] According to embodiments of this disclosure, each of the plurality of first vibration structures 210A of each of the plurality of first vibration generators 210-1 can vibrate based on a first vibration drive signal to vibrate the first support region SA1. For example, each of the plurality of first vibration structures 210A of each of the plurality of first vibration generators 210-1 can vibrate the left ear of a user located at the first support region SA1. For example, each of the plurality of first vibration structures 210A of each of the plurality of first vibration generators 210-1 can vibrate the left ear of the user and the area near the user's left ear located at the first support region SA1.

[0364] According to embodiments of this disclosure, each of the plurality of second vibration structures 210B of each of the plurality of second vibration generators 210-2 can vibrate based on a second vibration drive signal to vibrate the second support region SA2. For example, each of the plurality of second vibration structures 210B of each of the plurality of second vibration generators 210-2 can vibrate the right ear of a user located at the second support region SA2. For example, each of the plurality of second vibration structures 210B of each of the plurality of second vibration generators 210-2 can vibrate the right ear of the user and the area near the user's right ear located at the second support region SA2.

[0365] According to embodiments of this disclosure, a plurality of first vibration generators 210-1 may be arranged along a second direction Y. For example, a plurality of first vibration generators 210-1 may be arranged along a first direction X. For example, a plurality of first vibration generators 210-1 may be arranged along a first direction X and a second direction Y. For example, a plurality of second vibration generators 210-2 may be arranged along a second direction Y. For example, a plurality of second vibration generators 210-2 may be arranged along a first direction X. For example, a plurality of second vibration generators 210-2 may be arranged along a first direction X and a second direction Y. For example, the plurality of first vibration generators 210-1 and the plurality of second vibration generators 210-2 may be configured symmetrically with respect to a center line CL, but embodiments of this disclosure are not limited thereto.

[0366] According to embodiments of this disclosure, a plurality of first vibration generators 210-1 may be arranged on the same plane in the first support region SA1, but embodiments of this disclosure are not limited thereto. For example, a plurality of second vibration generators 210-2 may be arranged on the same plane in the second support region SA2, but embodiments of this disclosure are not limited thereto. For example, a plurality of first vibration generators 210-1 and a plurality of second vibration generators 210-2 may be arranged on the same plane in the support region SA, but embodiments of this disclosure are not limited thereto.

[0367] According to embodiments of this disclosure, a plurality of first vibration generators 210-1 can be arranged or laid out in an i×j pattern on the same plane in the first support region SA1. For example, a plurality of second vibration generators 210-2 can be arranged or laid out in an i×j pattern on the same plane in the second support region SA2. For example, i can be the number of vibration generators arranged along the first direction X and can be a natural number of 1 or greater, and j can be the number of vibration generators arranged along the second direction Y and can be a natural number of 2 or greater, equal to or different from i. For example, i can be a natural number of 2 or greater, and j can be a natural number of 1 or greater, equal to or different from i. For example, all vibration generators 210-1 and 210-2 included in the vibration device 200 can be arranged or laid out in an i×j pattern on the same plane in the support region SA. For example, i can be the number of vibration generators arranged along the first direction X and can be a natural number of 4 or greater, and j can be the number of vibration generators arranged along the second direction Y and can be a natural number of 1 or greater, equal to or different from i.

[0368] According to embodiments of this disclosure, the plurality of first vibration structures 210A of each of the plurality of first vibration generators 210-1 can be arranged along a second direction Y. For example, the plurality of first vibration structures 210A of each of the plurality of first vibration generators 210-1 can be arranged along a first direction X. For example, the plurality of first vibration structures 210A of each of the plurality of first vibration generators 210-1 can be arranged along a first direction X and a second direction Y. For example, the plurality of second vibration structures 210B of each of the plurality of second vibration generators 210-2 can be arranged along a second direction Y. For example, the plurality of second vibration structures 210B of each of the plurality of second vibration generators 210-2 can be arranged along a first direction X. For example, the plurality of second vibration structures 210B of each of the plurality of second vibration generators 210-2 can be arranged along a first direction X and a second direction Y.

[0369] According to embodiments of this disclosure, the plurality of first vibration structures 210A of each of the plurality of first vibration generators 210-1 can be arranged on the same plane in the first support region SA1, but the embodiments of this disclosure are not limited thereto. For example, the plurality of second vibration structures 210B of each of the plurality of second vibration generators 210-2 can be arranged on the same plane in the second support region SA2, but the embodiments of this disclosure are not limited thereto. For example, the plurality of first vibration structures 210A of each of the plurality of first vibration generators 210-1 and the plurality of second vibration structures 210B of each of the plurality of second vibration generators 210-2 can be arranged on the same plane in the support region SA, but the embodiments of this disclosure are not limited thereto.

[0370] According to embodiments of this disclosure, a plurality of first vibration structures 210A can be arranged or laid out in an i×j pattern on the same plane in the first support region SA1. For example, a plurality of second vibration structures 210B can be arranged or laid out in an i×j pattern on the same plane in the second support region SA2. For example, i can be the number of vibration generators arranged along the first direction X and can be a natural number of 1 or greater, and j can be the number of vibration generators arranged along the second direction Y and can be a natural number of 2 or greater, equal to or different from i. For example, i can be a natural number of 2 or greater, and j can be a natural number of 1 or greater, equal to or different from i. For example, all vibration structures 210A and 210B included in the vibration device 200 can be arranged or laid out in an i×j pattern on the same plane in the support region SA. For example, i can be the number of vibration generators arranged along the first direction X and can be a natural number of 4 or greater, and j can be the number of vibration generators arranged along the second direction Y and can be a natural number of 2 or greater, equal to or different from i.

[0371] The vibration generating device and the vehicle including the vibration generating device according to embodiments of the present disclosure will now be described.

[0372] The vibration generating device according to embodiments of the present disclosure may include: a microphone device disposed at an object comprising multiple regions, the microphone device 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 opposite phase to the noise signal, and generate a vibration driving signal based on the sound source signal and the noise removal signal; and a vibration device disposed at the object to vibrate the object based on the vibration driving signal.

[0373] According to some embodiments of this disclosure, an object can be configured to vibrate to produce sound corresponding to a sound source signal.

[0374] According to some embodiments of this disclosure, the generated sound can be provided to the user via bone conduction.

[0375] According to some embodiments of the present disclosure, the sound processing circuit may include: an input configured to receive a sound source signal and a noise signal; a signal processor configured to receive the noise signal and generate a noise removal signal based on the noise signal; and a drive signal generation unit configured to generate a vibration drive signal based on the sound source signal and the noise removal signal.

[0376] According to some embodiments of this disclosure, the microphone device may also be configured to receive first noise near a first region in a plurality of regions and second noise near a second region in a plurality of regions, and / or the sound processing circuit may also be configured to generate a first noise removal signal having an opposite phase to a first noise signal corresponding to the first noise and a second noise removal signal having an opposite phase to a second noise signal corresponding to the second noise.

[0377] According to some embodiments of this disclosure, the sound processing circuit can also be configured to combine the sound source signal, the first noise removal signal, and the second noise removal signal to generate a vibration drive signal.

[0378] According to some embodiments of this disclosure, the sound processing circuit may also be configured to combine the sound source signal and the first noise removal signal into a first vibration driving signal, and to combine the sound source signal and the second noise removal signal to generate a second vibration driving signal.

[0379] According to some embodiments of this disclosure, the vibration device may include a vibration generator disposed above a third region or a fourth region among a plurality of regions, or above the third region and the fourth region, and the sound processing circuit may also be configured to provide a vibration drive signal to a vibration generator.

[0380] According to some embodiments of this disclosure, a vibration generator may include one or more vibration structures, and one or more vibration structures may be configured to be disposed above a third region, a fourth region, or both the third and fourth regions.

[0381] According to some embodiments of this disclosure, a vibration generator may include a first portion comprising inorganic material and a second portion comprising organic material disposed between adjacent first portions.

[0382] According to some embodiments of this disclosure, the first portion and the second portion may be arranged alternately along a first direction and / or a second direction intersecting the first direction.

[0383] According to some embodiments of this disclosure, the width of the second portion may gradually decrease in the direction from the central portion of the vibrating device to both sides.

[0384] According to some embodiments of this disclosure, the first part may have a linear, quadrilateral, circular, or triangular shape.

[0385] According to some embodiments of this disclosure, a vibration generator may include one or more vibration structures, and / or one or more vibration structures may include one or more first vibration structures disposed in a third region and one or more second vibration structures disposed in a fourth region.

[0386] According to some embodiments of this disclosure, each of one or more first vibration structures and one or more second vibration structures may include a first portion comprising inorganic material and a second portion comprising organic material disposed between adjacent first portions.

[0387] According to some embodiments of this disclosure, the vibration device may include one or more first vibration generators disposed in a third region of a plurality of regions and one or more second vibration generators disposed in a fourth region of a plurality of regions, and the sound processing circuit may be configured to provide a first vibration drive signal to one or more first vibration generators and to provide a second vibration drive signal to one or more second vibration generators.

[0388] According to some embodiments of this disclosure, one or more first vibration generators may include one or more first vibration structures, and one or more second vibration generators may include one or more second vibration structures.

[0389] According to some embodiments of this disclosure, one or more first vibration structures may include a first portion containing inorganic material and a second portion containing organic material disposed between adjacent first portions, and one or more second vibration structures may include a first portion containing inorganic material and a second portion containing organic material disposed between adjacent first portions.

[0390] According to some embodiments of this disclosure, the object may include at least one or more of a vehicle seat, a train seat, a massage chair, a table and chairs, and a head protection device.

[0391] The vibration generating apparatus according to some embodiments of the present disclosure may include: a microphone device disposed at an object including a first region, a second region, a third region, and a fourth region, the microphone device 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 opposite phase to 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 cause one or more of the third and fourth regions to vibrate.

[0392] According to some embodiments of this disclosure, one or more of the third and fourth regions may be configured to vibrate to produce a sound corresponding to a sound source signal.

[0393] According to some embodiments of this disclosure, the generated sound can be provided to the user via bone conduction.

[0394] According to some embodiments of the present disclosure, the sound processing circuit may include: an input configured to receive a sound source signal and a noise signal; a signal processor configured to receive the noise signal and generate a noise removal signal based on the noise signal; and a drive signal generation unit configured to generate a vibration drive signal based on the sound source signal and the noise removal signal.

[0395] According to some embodiments of this disclosure, one or more vibration generators may include one or more first vibration structures.

[0396] According to some embodiments of this disclosure, one or more vibration generators may include a vibration generator disposed above a third region, a fourth region, or both the third and fourth regions, and the sound processing circuit may also be configured to provide a vibration drive signal to a vibration generator.

[0397] According to some embodiments of this disclosure, the sound processing circuit may also be configured to provide a vibration drive signal based on a sound source signal, a first noise removal signal having a first noise in the opposite phase near a first region, and a second noise removal signal having a second noise in the opposite phase near a second region.

[0398] According to some embodiments of this disclosure, a vibration generator may include a vibration structure disposed above a third region, a fourth region, or both the third and fourth regions.

[0399] According to some embodiments of this disclosure, a vibration generator may include one or more first vibration structures disposed in a third region and one or more second vibration structures disposed in a fourth region.

[0400] According to some embodiments of this disclosure, one or more vibration generators may include one or more first vibration generators disposed in a third region and one or more second vibration generators disposed in a fourth region, and the sound processing circuit may also be configured to provide a first vibration drive signal to one or more first vibration generators and to provide a second vibration drive signal to one or more second vibration generators.

[0401] According to some embodiments of the present disclosure, the sound processing circuit may also be configured to provide a first vibration driving signal based on a sound source signal and a first noise removal signal having a first noise in the vicinity of a first region and having a first noise in the vicinity of a second region and having a second noise removal signal having a second noise in the vicinity of a second region and ....

[0402] According to some embodiments of this disclosure, one or more first vibration generators may include one or more first vibration structures, and one or more second vibration generators may include at least one second vibration structure.

[0403] According to some embodiments of this disclosure, one or more first vibrating structures may include a first portion comprising inorganic material and a second portion comprising organic material disposed between adjacent first portions.

[0404] According to some embodiments of this disclosure, the first portion and the second portion may be arranged alternately along a first direction and / or a second direction intersecting the first direction.

[0405] According to some embodiments of this disclosure, the width of the second portion may gradually decrease in the direction from the central portion of the vibrating device to both sides.

[0406] According to some embodiments of this disclosure, the first part may have a linear, quadrilateral, circular, or triangular shape.

[0407] According to some embodiments of this disclosure, the first part may have piezoelectric properties, while the second part may have flexible properties.

[0408] According to some embodiments of this disclosure, the object may include one or more of a vehicle seat, a train seat, a massage chair, a table and chair, and a head protection device.

[0409] A vehicle according to some embodiments of the present disclosure may include: a seat including a headrest having multiple areas; and a vibration generating device disposed at the headrest, the vibration generating device including: a microphone device configured to receive noise near the headrest; 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 opposite phase to the noise signal, and generate a vibration driving signal based on the sound source signal and the noise removal signal; and a vibration device configured to vibrate based on the vibration driving signal to cause the headrest to vibrate.

[0410] According to some embodiments of this disclosure, the multiple regions may include: a first support region, which is the left region of the central region of the headrest; a second support region, which is the right region of the central region of the headrest; a first peripheral region, which is disposed to the left of the first support region; and a second peripheral region, which is disposed to the right of the second support region.

[0411] According to some embodiments of this disclosure, the vibration device can be configured to vibrate based on a vibration drive signal to cause one or more of the first support region and the second support region to vibrate.

[0412] According to some embodiments of this disclosure, the seat may also include a backrest and a saddle, and the sound processing circuitry may be disposed in any one or more of the headrest, backrest, and saddle.

[0413] A vehicle according to some embodiments of the present disclosure may include: a seat including a headrest having a first region to a fourth region; and a vibration generating device disposed at the headrest, the vibration generating device including: a microphone device disposed at the headrest configured to receive noise near the headrest; 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 opposite phase to 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 cause one or more of the third region and the fourth region to vibrate.

[0414] According to some embodiments of this disclosure, the first region may be the left periphery of the headrest, the second region may be the right periphery of the headrest, the third region may be the left central region of the headrest, and the fourth region may be the right central region of the headrest.

[0415] According to some embodiments of this disclosure, the seat may also include a backrest and a saddle, and the sound processing circuitry may be disposed in any one or more of the headrest, backrest, and saddle.

[0416] It will be apparent to those skilled in the art that various modifications and variations can be made to this disclosure without departing from the technical spirit or scope thereof. Therefore, embodiments of this disclosure are intended to cover such modifications and variations, provided they fall within the scope of the appended claims and their equivalents.

[0417] Cross-references to related applications

[0418] This application claims priority and benefit to Korean Patent Application No. 10-2020-0186074, filed on December 29, 2020, the entire contents of which are incorporated herein by reference.

Claims

1. A vibration generation apparatus comprising: a microphone apparatus disposed at an object including a plurality of regions, the microphone apparatus configured to receive a noise in a vicinity of 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 opposite phase of the noise signal; and generate a vibration drive 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 drive signal to vibrate the object, the vibration apparatus including one or more vibration generators disposed over at least one region of the plurality of regions, wherein a vibration generator among the one or more vibration generators includes: one or more vibration structures configured to vibrate based on the vibration drive signal; a first power supply line at a first surface of the vibration structure, the first power supply line overlapping the vibration structure in a plan view; and a second power supply line at a second surface of the vibration structure opposite to the first surface, the second power supply line overlapping the vibration structure in the plan view without overlapping the first power supply line, wherein at least one of the first power supply line and the second power supply line provides the vibration drive signal to the vibration structure, and wherein the vibration generator includes a first protection member disposed at a first surface of the vibration generator, a second protection member disposed at a second surface of the vibration generator opposite to the first surface, and a metal plate between the object and the first protection member or the second protection member. The object is configured to vibrate to generate a sound corresponding to the sound source signal. The generated sound is provided to a user through bone conduction.

2. The vibration generation apparatus according to claim 1, wherein The sound processing circuit includes:

3. The vibration generation apparatus according to claim 2, wherein an input configured to receive the sound source signal and the noise signal; 4. The vibration generation apparatus according to claim 1, wherein a signal processor configured to: receive the noise signal; and generate the noise removal signal based on the noise signal; and a drive signal generation section configured to generate the vibration drive signal based on the sound source signal and the noise removal signal. 5.The vibration generation apparatus of claim 1, wherein the microphone apparatus is further configured to receive: a first noise in a vicinity of a first region of the plurality of regions; and a second noise in a vicinity of a second region of the plurality of regions, and / or the sound processing circuit is further configured to generate: a first noise removal signal having an opposite phase of a first noise signal corresponding to the first noise; and a second noise removal signal having an opposite phase of a second noise signal corresponding to the second noise. The sound processing circuit is further configured to combine the sound source signal, the first noise removal signal, and the second noise removal signal to generate the vibration drive signal. ​ ​ 6. The vibration generation apparatus according to claim 5, wherein ​ 7. The vibration generation apparatus according to claim 5, wherein The sound processing circuit is further configured to: combine the sound source signal and the first noise-removed signal to generate a first vibration drive signal, and combine the sound source signal and the second noise-removed signal to generate a second vibration drive signal.

8. The vibration generation device according to claim 6, wherein the vibration device includes one vibration generator disposed above a third region of the plurality of regions, or above a fourth region of the plurality of regions, or above the third region and the fourth region of the plurality of regions, and wherein the sound processing circuit is further configured to provide the vibration drive signal to the one vibration generator.

9. The vibration generation device according to claim 8, wherein the one or more vibration structures are configured to be disposed above the third region, the fourth region, or the third region and the fourth region.

10. The vibration generation apparatus according to claim 9, wherein the one vibration generator includes first portions including inorganic material and second portions including organic material disposed between adjacent first portions.

11. The vibration generation device of claim 10, wherein, the first portions and the second portions are alternately arranged in a first direction and / or a second direction intersecting the first direction.

12. The vibration generation device of claim 11, wherein, a width of the second portions gradually decreases in a direction from a central portion of the vibration device to both sides.

13. The vibration generation device of claim 10, wherein, the first portions have a shape of a line, a quadrangle, a circle, or a triangle.

14. The vibration generation device according to claim 8, wherein the one or more vibration structures include one or more first vibration structures disposed at the third region and one or more second vibration structures disposed at the fourth region.

15. The vibration generation device of claim 14, wherein, each of the one or more first vibration structures and the one or more second vibration structures includes first portions including inorganic material and second portions including organic material disposed between adjacent first portions.

16. The vibration generation device according to claim 7, wherein the vibration device includes one or more first vibration generators disposed at a third region of the plurality of regions and one or more second vibration generators disposed at a fourth region of the plurality of regions, and wherein the sound processing circuit is further configured to provide the first vibration drive signal to the one or more first vibration generators and to provide the second vibration drive signal to the one or more second vibration generators.

17. The vibration generation device according to claim 16, wherein, the one or more first vibration generators include one or more first vibration structures, and wherein the one or more second vibration generators include one or more second vibration structures.

18. The vibration generation device according to claim 17, wherein, the one or more first vibration structures include first portions including inorganic material and second portions including organic material disposed between adjacent first portions, and wherein the one or more second vibration structures include first portions including inorganic material and second portions including organic material disposed between adjacent first portions.

19. The vibration generation apparatus of claim 1, wherein, The object includes one or more of a seat of a vehicle, a seat of a train, a massage chair, a table chair, and a head protection device.

20. A vibration generating apparatus, the 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 configured to receive a noise in a vicinity of 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 opposite phase of the noise signal; and generate a vibration drive 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 drive 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 drive signal; a first power supply line at a first surface of the vibration structure, the first power supply line overlapping the vibration structure in a plan view; and a second power supply line at a second surface of the vibration structure opposite the first surface, the second power supply line overlapping the vibration structure in the plan view without overlapping the first power supply line, wherein at least one of the first power supply line and the second power supply line provides the vibration drive signal to the vibration structure, and wherein the vibration generator includes a first protection member disposed at a first surface of the vibration generator, a second protection member disposed at a second surface of the vibration generator opposite the first surface, and a metal plate between the object and the first protection member or the second protection member.

21. The vibration generation device of claim 20, wherein, One or more of the third region and the fourth region are configured to vibrate to generate a sound corresponding to the sound source signal.

22. The vibration generation device of claim 21, wherein, The generated sound is provided to a user through bone conduction.

23. The vibration generation device of claim 20, wherein, The sound processing circuit includes: an input configured to receive the sound source signal and the noise signal; a signal processor configured to: receive the noise signal; and generate the noise removal signal based on the noise signal; and a drive signal generation section configured to generate the vibration drive signal based on the sound source signal and the noise removal signal.

24. The vibration generation device of claim 20, wherein, The one or more vibration generators include one or more first vibration structures.

25. The vibration generating apparatus of claim 20, wherein, The one or more vibration generators include one vibration generator disposed above the third region, the fourth region, or both the third region and the fourth region, and wherein the sound processing circuit is further configured to provide the vibration drive signal to the one vibration generator.

26. The vibration generation device of claim 25, wherein, The sound processing circuit is further configured to provide the vibration drive signal based on the sound source signal, a first noise removal signal having an opposite phase of a first noise in a vicinity of the first region, and a second noise removal signal having an opposite phase of a second noise in a vicinity of the second region.

27. The vibration generation device of claim 25, wherein, The vibration structure is disposed over the third region, the fourth region, or the third region and the fourth region.

28. The vibration generation device of claim 25, wherein, The one vibration generator includes: one or more first vibration structures disposed at the third region, and one or more second vibration structures disposed at the fourth region.

29. The vibration generating apparatus of claim 20, wherein The one or more vibration generators include one or more first vibration generators disposed at the third region and one or more second vibration generators disposed at the fourth region, and wherein the sound processing circuit is further configured to provide a first vibration drive signal to the one or more first vibration generators and a second vibration drive signal to the one or more second vibration generators.

30. The vibration generation device of claim 29, wherein, The sound processing circuit is further configured to provide the first vibration drive signal based on the sound source signal and a first noise removal signal having an opposite phase of a first noise in a vicinity of the first region, and to provide the second vibration drive signal based on the sound source signal and a second noise removal signal having an opposite phase of a second noise in a vicinity of the second region.

31. The vibration generating apparatus of claim 29, wherein The one or more first vibration generators include one or more first vibration structures, and wherein the one or more second vibration generators include at least one second vibration structure.

32. The vibration generation device of claim 24, wherein, The one or more first vibration structures include first portions including an inorganic material and second portions including an organic material disposed between adjacent first portions.

33. The vibration generation device of claim 32, wherein, The first portions and the second portions are alternately arranged in a first direction and / or a second direction intersecting the first direction.

34. The vibration generation device of claim 33, wherein, A width of the second portions gradually decreases in a direction from a central portion of the vibration generator to both sides.

35. The vibration generation device of claim 32, wherein, The first portions have a shape of a line, a quadrangle, a circle, or a triangle.

36. The vibration generating apparatus of claim 32, wherein The first portions have piezoelectric properties, and wherein the second portions have pliable properties.

37. The vibration generation device of claim 20, wherein, The object includes one or more of a seat of a vehicle, a seat of a train, a massage chair, a table chair, and a head protection device.

38. A vehicle, the vehicle comprising: a seat including a headrest, the headrest including a plurality of regions; and the vibration generating apparatus of any one of claims 1 to 18, wherein the headrest is the object.

39. The vehicle of claim 38, wherein, The plurality of regions include: a first support region, the first support region being a left region of a central region of the headrest; a second support region, the second support region being a right region of the central region of the headrest; a first peripheral region, the first peripheral region being disposed to a left side of the first support region; and a second peripheral region, the second peripheral region being disposed to a right side of the second support region. a second perimeter region disposed to a right of the second support region.

40. The vehicle of claim 39, wherein, the vibration device is configured to vibrate based on the vibration drive signal to vibrate one or more of the first support region and the second support region.

41. The vehicle of claim 38, wherein, the seat further includes a backrest and a saddle, and the sound processing circuit is disposed in any one or more of the headrest, the backrest, and the saddle.

42. A vehicle comprising: a seat including a headrest including first through fourth regions; and the vibration producing device of any one of claims 20 to 36, wherein the headrest is the object.

43. The vehicle of claim 42, wherein the first region is a left perimeter of the headrest; the second region is a right perimeter of the headrest; the third region is a left central region of the headrest; and the fourth region is a right central region of the headrest.

44. The vehicle of claim 42, wherein, the seat further includes a backrest and a saddle, and the sound processing circuit is disposed in any one or more of the headrest, the backrest, and the saddle.

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