Vibration device, and display device and vehicle device including same

Abstract

The invention discloses a vibration device, and a display device and a vehicle device including the same. A vibration device according to one or more aspects of the present disclosure may include a plurality of vibration transmitting members, a connecting portion connected between the plurality of vibration transmitting members, and a plurality of vibration generating members connected between two adjacent vibration transmitting members of the plurality of vibration transmitting members.

Description

[0001] Cross - reference to related applications

[0002] This application claims the benefit of Korean Patent Application No. 10 - 2023 - 0191633, filed on December 26, 2023, which is hereby incorporated by reference in its entirety as if fully set forth herein. Technical Field

[0003] The present disclosure relates to a vibration device, a display device including the vibration device, and a vehicle device including the vibration device. Background Art

[0004] With the progress of the information society, the demand for display devices for displaying images is increasing in various ways.

[0005] For convenient user input, electronic devices using a display device as a display screen provide a touch - screen type user interface. Display devices capable of touch - interface processing are evolving to provide more various functions.

[0006] Display devices including a touch panel or having an integrated touch screen therein are widely used, which can perform touch sensing based on a touch pen (e.g., stylus) and finger touch sensing based on fingers.

[0007] Recently, a haptic technology that provides haptic feedback to a user when the user touches the screen of a display device is being developed. The display device to which the haptic technology is applied generates an attractive force for stimulating the human body's tactile receptors, and stimulates the user's tactile senses by using the attractive force, enabling the user to recognize the touch and the texture of the touch. Summary of the Invention

[0008] The inventors of the present disclosure have recognized the problems and disadvantages of the related art and have conducted extensive research and experiments for implementing a vibration device and a device including the vibration device, which can provide ultrasonic vibration or ultrasonic haptics to a user when a user touch is applied thereto. Based on the extensive research and experiments, the inventors of the present disclosure have invented a new vibration device, a display device including the vibration device, and a vehicle device including the vibration device, which can provide ultrasonic vibration or ultrasonic haptics to a user.

[0009] Accordingly, aspects of the present disclosure relate to a vibration device, a display device including the vibration device, and a vehicle device including the vibration device, which substantially eliminate one or more problems caused by the limitations and disadvantages of the related art.

[0010] One or more aspects of the present disclosure relate to providing a vibration device, a display device including the vibration device, and a vehicle device including the vibration device, and the vibration device can increase the intensity of ultrasonic waves generated based on vibrations of a display member.

[0011] One or more aspects of the present disclosure relate to providing a vibration device, a display device including the vibration device, and a vehicle device including the display device, and the vibration device can generate an out-of-plane vibration mode.

[0012] One or more aspects of the present disclosure relate to providing a vibration device, a display device including the vibration device, and a vehicle device including the vibration device, and the vibration device can vibrate a display member in an out-of-plane vibration mode to provide ultrasonic vibration and / or ultrasonic haptics to a user.

[0013] Additional features and aspects will be set forth in the description below, and in part will be apparent from the description, or may be learned by practice of the inventive concepts provided herein. Other features and aspects of the inventive concepts may be realized and obtained by means of the structures particularly pointed out or derived from the written description, the claims thereof, and the drawings.

[0014] To achieve these and other advantages and aspects of the present disclosure, as embodied and broadly described herein, in one or more aspects, a vibration device includes a plurality of vibration transmission members, a connection portion connected between the plurality of vibration transmission members, and a plurality of vibration generating members connected between two adjacent vibration transmission members among the plurality of vibration transmission members.

[0015] In one or more aspects, a display device includes: a display member configured to display an image; a vibration generating device including one or more vibration devices configured to vibrate the display member; and a connection member located between the display member and the vibration generating device. The one or more vibration devices include a plurality of vibration transmission members, a connection member connected between the plurality of vibration transmission members, and a plurality of vibration generating members connected between two adjacent vibration transmission members among the plurality of vibration transmission members.

[0016] In one or more aspects, a vehicle device includes: a dashboard; a dashboard module in the dashboard, the dashboard module including a first display; a driver's seat; a front passenger seat; and an infotainment module in one or more of the dashboard, the driver's seat, and the front passenger seat, and the infotainment module including one or more second displays. One or more of the first display and the one or more second displays include: a display member configured to display an image; one or more vibration generating devices configured to vibrate the display member; and a connecting member located between the display member and the one or more vibration generating devices. The one or more vibration generating devices include a plurality of vibration transfer members, a connecting member connected between the plurality of vibration transfer members, and a plurality of vibration generating members connected between two adjacent vibration transfer members among the plurality of vibration transfer members.

[0017] According to one or more aspects of the present disclosure, the vibration device may generate an out-of-plane vibration mode.

[0018] According to one or more aspects of the present disclosure, a device and a vehicle device each including a vibration device may vibrate a display member in the out-of-plane vibration mode of the vibration device to provide ultrasonic vibration or ultrasonic haptics to a user.

[0019] According to one or more aspects of the present disclosure, by using a vibration transfer member of a base member and a vibration transfer member, an in-plane vibration mode based on the vibration of a vibration generating member may be converted into an out-of-plane vibration mode to vibrate a display member, and thus, ultrasonic vibration or ultrasonic haptics may be provided to a user.

[0020] According to one or more aspects of the present disclosure, the vibration device may vibrate a display member by using a connecting portion connecting a plurality of vibration transfer members to each other, and thus, ultrasonic vibration and / or ultrasonic haptics may be provided to a user more effectively.

[0021] According to one or more aspects of the present disclosure, the connection process (or attachment process) and the connection quality (or attachment performance) between the display member and the vibration device may be improved.

[0022] According to one or more aspects of the present disclosure, since the signal supply member and the vibration device are provided as one body, the signal supply member and the vibration device may be configured as one component (or one assembly), and thus, an effect of uni-materialization may be obtained.

[0023] After examining the following drawings and detailed description, other systems, methods, features, and advantages will be or will become apparent to those skilled in the art. All such additional systems, methods, features, and advantages are included within this specification, within the scope of the present disclosure, and are protected by the appended claims. Nothing in this section shall be taken as a limitation on these claims. Further aspects and advantages are discussed in connection with the various aspects of the present disclosure.

[0024] It should be understood that the foregoing description and the following detailed description are both exemplary and explanatory and are intended to provide further explanation of the inventive concept claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings, which are included to provide a further understanding of the present disclosure and which are incorporated in and constitute a part of this application, illustrate aspects of the present disclosure and, together with the description, are used to explain the principles of the present disclosure. In the drawings:

[0026] Figure 1 is a perspective view showing a display device according to one aspect of the present disclosure;

[0027] Figure 2 is a cross-sectional view taken along the line I-I' shown in accordance with one aspect of the present disclosure; Figure 1 as shown;

[0028] Figure 3 is a rear view showing Figure 1 a plurality of vibration devices and display members shown;

[0029] Figure 4 is a perspective view showing Figure 2 a vibration transmission member according to one aspect of the present disclosure as shown;

[0030] Figure 5 is a view showing a display device according to another aspect of the present disclosure;

[0031] Figure 6 is a rear view showing Figure 1 a plurality of vibration devices and display members shown;

[0032] Figure 7 is a view showing a display device according to another aspect of the present disclosure;

[0033] Figure 8 is a rear view showing Figure 7 a plurality of vibration devices and display members shown;

[0034] Figure 9 is a rear view showing a plurality of vibration devices and display members according to another aspect of the present disclosure;

[0035] Figure 10 is a rear view showing a plurality of vibration devices and display members according to another aspect of the present disclosure;

[0036] Figure 11 is a rear view showing a plurality of vibration devices and display members according to another aspect of the present disclosure;

[0037] Figure 12 is a view showing a vibration generating component according to one aspect of the present disclosure;

[0038] Figure 13 is a cross-sectional view taken along the line II-II' shown in Figure 12 according to one aspect of the present disclosure;

[0039] Figure 14 is a cross-sectional view taken along the line III-III' shown in Figure 12 according to one aspect of the present disclosure;

[0040] Figure 15 is a view showing a vibration layer according to another aspect of the present disclosure;

[0041] Figure 16 is a view showing a vibration layer according to another aspect of the present disclosure;

[0042] Figure 17 is a view showing a vibration generating component according to another aspect of the present disclosure;

[0043] Figure 18 is a view showing a vehicle device according to one aspect of the present disclosure;

[0044] Figure 19A and Figure 19B is a view showing the vertical displacement of a vibration device according to one aspect of the present disclosure and an experimental example; and

[0045] Figure 20A and Figure 20B is a view showing the relative impedance with respect to the width and length of a connection portion according to one aspect of the present disclosure. DETAILED DESCRIPTION

[0046] Now, reference will be made in detail to aspects of the present disclosure, examples of which may be shown in the accompanying drawings. In the following description, when a detailed description of well-known functions, structures, or configurations may unnecessarily obscure aspects of the present disclosure, the detailed description of such known functions or configurations may be omitted for the sake of brevity. In addition, repeated descriptions may be omitted for the sake of brevity. The progression of the described processing steps and / or operations is a non-limiting example.

[0047] The order of steps and / or operations is not limited to the order set forth herein, and except for steps and / or operations that must occur in a particular order, the order of steps and / or operations may be changed to occur in an order different from the order described herein. In one or more examples, two consecutive operations may be performed substantially simultaneously, or two operations may be performed in the reverse order or in a different order depending on the functions or operations involved.

[0048] Unless otherwise indicated, the same reference numerals can always refer to like elements, even if they are shown in different figures. In one or more aspects, unless otherwise indicated, the same elements (or elements with the same name) in different figures may have the same or substantially the same functions and properties. The names of the corresponding elements used in the following explanations are chosen only for convenience and may thus be different from those used in the actual product.

[0049] The advantages and features of the present disclosure and the methods for achieving them are illustrated by aspects described with reference to the accompanying drawings. However, the present disclosure may be embodied in different forms and should not be construed as limited to the example aspects set forth herein. On the contrary, these example aspects are examples and are provided so that the present disclosure may be thorough and complete and to help those skilled in the art understand the inventive concept without limiting the scope of the present disclosure.

[0050] The shapes (e.g., dimensions, lengths, widths, heights, thicknesses, positions, radii, diameters, and areas), dimensions, ratios, angles, quantities, etc., disclosed herein, including those shown in the drawings, are only examples, and thus, the present disclosure is not limited to the details shown. Any embodiment described herein as an "example" is not necessarily to be construed as preferred or advantageous over other embodiments. However, it should be noted that the relative dimensions of the components shown in the drawings are part of the present disclosure.

[0051] In cases where terms such as "comprising," "having," "including," "containing," "constituting," "made of," "formed from," etc. are used with respect to one or more elements, one or more other elements may be added unless terms such as "only" are used. The terms used in the present disclosure are only for describing example aspects and are not intended to limit the scope of the present disclosure. Unless the context clearly indicates otherwise, singular forms of terms may include plural forms.

[0052] Unless otherwise specified, the term "exemplary" is used to mean serving as an example or illustration. Aspects are example aspects. "Aspects", "examples", etc. should not be construed as being preferred or advantageous over other embodiments. Unless otherwise specified, an aspect, an example, an example aspect, the aspect, etc. may refer to one or more aspects, one or more examples, one or more example aspects, etc. Further, the term "may" includes all meanings of the term "can".

[0053] In one or more aspects, unless otherwise explicitly stated, an element, feature, or corresponding information (e.g., level, range, dimension, size, etc.) is construed to include a range of error or tolerance, even if no explicit description of such range of error or tolerance is provided. The range of error or tolerance may be caused by various factors (e.g., process factors, internal or external influences, noise, etc.). When interpreting a numerical value, unless otherwise explicitly stated, the value is construed to include a range of error.

[0054] When describing the positional relationship between two components (e.g., layer, film, region, component, section, etc.), for example, using "on", "above", "on top of", "over", "under", "above", "below", "beneath", "near", "close to", "adjacent to", "next to", "at or on one side of", etc., unless more restrictive terms such as "immediately", "directly", or "closely" are used, one or more other components may be located between the two components. For example, when a structure is described as being "on", "above", "on top of", "over", "under", "above", "below", "beneath", "near", "close to", "adjacent to", "next to", "at or on one side of" another structure, the description should be construed to include cases where the structures are in contact with each other and cases where one or more additional structures are disposed or inserted between them. Further, the terms "front", "rear", "back", "left", "right", "top", "bottom", "down", "up", "upper", "lower", "above", "below", "column", "row", "vertical", "horizontal", etc. refer to any reference system.

[0055] Spatial relative terms such as "below", "beneath", "lower", "above", "upper", etc. may be used to describe the relationship between various elements (e.g., layers, films, regions, components, segments, etc.) as shown in the figures. The spatial relative terms should be understood to include terms for different orientations of the elements in use or in operation in addition to the orientation depicted in the figures. For example, if the element shown in the figure is flipped, the element described as "below" or "beneath" other elements will be oriented "above" the other elements. Thus, the term "above", as an example term, may include all directions of "above" and "below". Similarly, the exemplary terms "above" or "upper" may include both directions of "above" and "below".

[0056] When describing a time relationship, when the time sequence is described as, for example, "after", "subsequent", "next", "before", "prior to", "preceding", etc., it may include discontinuous or out-of-order cases, and thus one or more other events may occur therebetween, unless more restrictive terms such as "exactly", "immediately", or "directly" are used.

[0057] Terms such as "below", "lower", "above", "upper", etc. may be used in this document to describe the relationship between the (multiple) elements as shown in the figures. It will be understood that the terms are spatially relative and are based on the orientation depicted in the figures.

[0058] It should be understood that although terms such as "first", "second", etc. may be used in this document to describe various elements (e.g., layers, films, regions, components, segments, etc.), these elements should not be limited by these terms, e.g., to any specific order, precedence, or number of elements. These terms are only used to distinguish one element from another. For example, without departing from the scope of the present disclosure, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. In addition, without departing from the scope of the present disclosure, the first element, the second element, etc. may be arbitrarily named according to the convenience of those skilled in the art. For the sake of clarity, the function or structure of these elements (e.g., the first element, the second element, etc.) is not limited by the ordinal number or name in front of the element. In addition, the first element may include one or more first elements. Similarly, the second element or the like may include one or more second elements or the like.

[0059] When describing the elements of the present disclosure, terms such as "first", "second", "A", "B", "(a)", "(b)", etc. may be used. These terms are intended to identify the corresponding element(s) from the other element(s), and these terms are not used to define the essence, basis, order, or numbering of the element.

[0060] For a statement in which an element (e.g., a layer, film, region, component, section, etc.) is described as being “connected,” “coupled,” “attached,” “adhered” (etc.) to another element, unless otherwise specified, the element can not only be directly connected, coupled, attached, adhered (etc.) to the other element, but can also be indirectly connected, coupled, attached, adhered (etc.) to the other element, and one or more intermediate elements are provided or inserted between these elements.

[0061] For a statement in which an element (e.g., a layer, film, region, component, section, etc.) “contacts,” “overlaps” (etc.) with another element, unless otherwise specified, the element can not only directly contact, overlap (etc.) with the other element, but can also indirectly contact, overlap (etc.) with the other element, and one or more intermediate elements are provided or inserted between these elements.

[0062] The phrase that an element (e.g., a layer, film, region, component, section, etc.) is “provided,” “set” (etc.) in another element can be understood as at least a part of the element is provided, set (etc.) in the other element, or the whole element is provided, set (etc.) in the other element. The phrase that an element (e.g., a layer, film, region, component, section, etc.) “contacts,” “overlaps” (etc.) with another element can be understood as at least a part of the element contacts, overlaps (etc.) with at least a part of the other element, the whole element contacts, overlaps (etc.) with at least a part of the other element, or at least a part of the element contacts, overlaps (etc.) with the whole of the other element.

[0063] Terms such as “line” or “direction” should not be interpreted only based on the geometric relationship that the corresponding lines or directions are parallel or perpendicular to each other. Such terms can mean a wider range of lines or directions in which the components of the present disclosure can operate normally. For example, terms such as “first direction,” “second direction,” etc., such as directions parallel to or perpendicular to the “x-axis,” “y-axis,” or “z-axis,” should not be interpreted only based on the geometric relationship that the corresponding directions are parallel or perpendicular to each other, and can mean directions with a wider directivity within the range in which the components of the present disclosure can operate normally.

[0064] 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, each of the phrases “at least one of the first item, the second item, or the third item” and “at least one of the first item, the second item, and the third item” can represent (i) a combination of items provided by two or more of the first item, the second item, and the third item, or (ii) only one of the first item, the second item, or the third item.

[0065] The expression “a first element, a second element, and / or a third element” should be understood to cover one of the first, second, and third elements, as well as any and all combinations of the first, second, and third elements. By way of example, A, B, and / or C covers only A; only B; only C; any one of A, B, and C (e.g., A, B, or C); or some combination of A, B, and C (e.g., A and B; A and C; or B and C); and all of A, B, and C. Additionally, the expression “A / B” can be understood as A and / or B. For example, the expression “A / B” can refer to only A; only B; A or B; or A and B.

[0066] In one or more aspects, unless otherwise specified, for convenience only, the terms “between” and “among” may be used interchangeably. For example, the expression “between a plurality of elements” can be understood as among a plurality of elements. In another example, the expression “among a plurality of elements” can be understood as between a plurality of elements. In one or more examples, the number of elements can be two. In one or more examples, the number of elements can be greater than two. Additionally, when an element (e.g., a layer, film, region, component, section, etc.) is said to be “between” at least two elements, the element can be the only element between the at least two elements, or there can also be one or more intermediate elements.

[0067] In one or more aspects, unless otherwise specified, for convenience only, the phrases “each other” and “one another” may be used interchangeably. For example, the expression “different from each other” can be understood as different from one another. In another example, the expression “different from one another” can be understood as different from each other. In one or more examples, the number of elements involved in the foregoing expressions can be two. In one or more examples, the number of elements involved in the foregoing expressions can be greater than two.

[0068] In one or more aspects, unless otherwise specified, for convenience only, the phrases “one or more of... among” and “one or more of...” can be used interchangeably.

[0069] The term “or” means “inclusive or” rather than “exclusive or”. That is, unless otherwise specified or clear from the context, the expression “x uses a or b” means any one of the natural inclusive permutations. For example, “a or b” can mean “a”, “b”, or “a and b”. For example, “a, b, or c” can mean “a”, “b”, “c”, “a and b”, “b and c”, “a and c”, or “a, b, and c”.

[0070] Features of various aspects of the present disclosure can be partially or fully coupled or combined with each other, can be technically related to each other, and can operate, link, or drive together in various ways. Aspects of the present disclosure can be implemented or executed independently of each other, or can be implemented or executed together in a co-dependent or related relationship. In one or more aspects, components of each device according to various aspects of the present disclosure can be operably coupled and configured.

[0071] Unless otherwise defined, 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 example aspects belong. It should also be understood that terms (such as those defined in a common dictionary) should be interpreted as having a meaning that is consistent with, for example, their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless explicitly defined otherwise herein.

[0072] The terms used herein have been chosen to be common in the relevant technical field; however, depending on the development and / or change of the technology, convention, preference of those skilled in the art, etc., there may be other terms. Therefore, the terms used herein should not be understood as limiting the technical concept, but should be understood as examples of terms used to describe example aspects.

[0073] Furthermore, in a specific case, the applicant can arbitrarily select the terms, and in that case, their detailed meanings are described herein. Therefore, the terms used herein should be understood not only based on the name of the terms, but also based on the meaning and content of the terms.

[0074] The "X-axis direction", "Y-axis direction", and "Z-axis direction" should not be interpreted by a geometric relationship of only perpendicular to each other, and can have a wider directivity within the range where the elements of the present disclosure can function properly.

[0075] In the present disclosure, a "display device" can include a display device such as a display module (or display member), the display module including a display panel and a driver for driving the display panel. In addition, the display module can include a set-top device (or set-top apparatus) or a set-top electronic device, such as a notebook computer, a television, a computer monitor, an equipment device including an automotive device or another type of device for a vehicle, or a mobile electronic device, such as a smart phone or an electronic tablet, which is a complete product (or end product) including a display module (such as a liquid crystal display module and a light-emitting display module (e.g., a quantum dot light-emitting display module, an organic light-emitting display module), etc.).

[0076] Therefore, in the present disclosure, examples of the device may include the display device itself (such as a liquid crystal display module or an organic light emitting display module, etc.) and a set-top device, which is a final consumer device or application product including a liquid crystal display module or an organic light emitting display module, etc.

[0077] The display panel applied to one or more aspects of the present disclosure may use any type of display panel, such as a liquid crystal display panel, an organic light emitting display panel, a micro light emitting diode display panel, a quantum dot light emitting display module, etc., but the aspects of the present disclosure are not limited thereto. For example, the display panel may be a display panel capable of generating (or outputting) one or more of sound and vibration by being vibrated by a vibration device according to an aspect of the present disclosure. The display panel applied to the display device according to an aspect of the present disclosure does not limit the shape or size of the display panel. For example, the shape of the display panel may include a rectangle, a square, a circle, an ellipse, a polygon, etc., and the size of the display panel may include a large-scale display panel, a small-scale display panel, a mini display panel, etc., but is not limited thereto.

[0078] According to one or more aspects of the present disclosure, when the display panel is a liquid crystal display panel, the liquid crystal display panel may include a plurality of gate lines, a plurality of data lines, and a plurality of pixels respectively disposed in the crossing regions of the gate lines and the data lines. In addition, the liquid crystal display panel may be configured to include: a first substrate including a thin film transistor (TFT), which is a switching element for adjusting the light transmittance of each of the plurality of pixels; a second substrate including a color filter and / or a black matrix, etc.; and a liquid crystal layer located between the first substrate and the second substrate.

[0079] According to another aspect of the present disclosure, when the display panel is an organic light emitting display panel, the organic light emitting display panel may include a plurality of gate lines, a plurality of data lines, and a plurality of pixels respectively disposed in the crossing regions of the gate lines and the data lines. In addition, the organic light emitting display panel may include: a substrate including a TFT, which is an element for selectively applying a voltage to each of the plurality of pixels; an organic light emitting device layer on the substrate; and a packaging layer (or a packaging substrate) disposed on the substrate to cover the organic light emitting device layer, etc. The packaging substrate can protect the TFT and the organic light emitting device layer, etc. from external impacts (such as when dropped or external forces applied by the user to the display device), and can prevent or reduce the infiltration of foreign substances (such as moisture or oxygen) into the organic light emitting device layer. In addition, the organic light emitting device layer may further include an inorganic light emitting layer (for example, a nano-sized material layer and / or a quantum dot light emitting layer, etc.). As another aspect of the present disclosure, the organic light emitting device layer may be changed to a micro light emitting diode or a mini light emitting diode.

[0080] In the present disclosure, a display device including a vibration device can be applied to a vehicle by being implemented as a user interface device such as a central control panel in a vehicle. For example, a user interface device for a vehicle can be configured between two front row seats or other positions at the front of the vehicle such that sound generated based on vibration of a display module can be transmitted into the vehicle interior. Accordingly, compared to a case where a speaker is provided inside the vehicle, an audio experience inside the vehicle can be improved. In addition, all components of each vibration device and each display device having a vibration device according to all exemplary aspects of the present disclosure are operably coupled and configured.

[0081] In the following description, various exemplary aspects of the present disclosure are described in detail with reference to the accompanying drawings. Regarding the reference numerals of elements in each of the accompanying drawings, the same elements may be shown in other drawings, and unless otherwise stated, similar reference numerals may refer to similar elements. The same or similar elements may be denoted by the same reference numerals even if they are depicted in different drawings. Additionally, for ease of description, the scale, dimension, size, and thickness of each element shown in the drawings may be different from the actual scale, dimension, size, and thickness, and thus, aspects of the present disclosure are not limited to the scale, dimension, size, and thickness shown in the drawings.

[0082] Figure 1 is a perspective view showing a display device according to an aspect of the present disclosure. Figure 2 is according to an aspect of the present disclosure along Figure 1 the sectional view taken along the line I-I' shown. Figure 3 is showing Figure 1 the rear view of a plurality of vibration devices and display members shown.

[0083] Referring to Figures 1 to 3 , a display device according to an aspect (or a first aspect) of the present disclosure can be configured to sense one or more of a finger touch based on a finger 10 and a touch based on a touch pen (e.g., a stylus). For example, a display device according to an aspect of the present disclosure can be a display device with a touch panel added thereto or a display device in which a touch screen is integrated. For example, a display device according to an aspect of the present disclosure can be used as a display device of a mobile electronic device (such as a mobile phone, a smartphone, smart glasses, a smart watch, a tablet personal computer (PC), or a watch phone, a smart television, an electronic whiteboard, a two-way information transmission transparent display, a two-way digital sign, a netbook computer, a laptop computer, a washing machine, a monitor, or a refrigerator, etc.), but aspects of the present disclosure are not limited thereto.

[0084] A display device according to an aspect of the present disclosure can include a display member 100 and a vibration device 500.

[0085] The display member 100 may be configured to display an image and output (or generate) ultrasonic vibrations or ultrasonic haptics based on the vibrations of the vibration device 500. For example, the display member 100 may serve as a vibration plate of the vibration device 500.

[0086] The display member 100 may include a display panel 110 and a touch panel 120.

[0087] The display panel 110 may be configured to display an image. For example, the display panel 110 may include a plurality of pixels configured to display an image. The image may include an electronic image, a digital image, a still image, or a video image, etc. For example, the display panel 110 may be an organic light-emitting display panel including a plurality of pixels that implement black / white or color images, but the type of the display panel is not limited thereto. For example, the display panel 110 may include a liquid crystal display panel, an electrophoretic display panel, a micro light-emitting diode display panel, a mini light-emitting diode display panel, an electro-wetting display panel, an inorganic light-emitting display panel (such as a nano-sized material layer), and / or a quantum dot light-emitting display panel, etc. Hereinafter, an example in which the display panel 110 is an organic light-emitting display panel will be described, but aspects of the present disclosure are not limited thereto.

[0088] The organic light-emitting display panel may include a substrate, a display component, and a plate member.

[0089] The substrate may be configured to include one or more of a glass material and a plastic material. The display component may include a pixel array component having a plurality of pixels respectively disposed at pixel regions provided by a plurality of gate lines and / or a plurality of data lines. Each of the plurality of pixels may include an organic light-emitting layer. The plate member may be configured to cover the display component. The plate member may be attached to the display component through an adhesive member. The plate member may protect the display component or the display panel from external impacts (such as when dropped or external forces applied by a user to the display device), and may prevent or reduce the infiltration of foreign substances (such as moisture or oxygen) into the organic light-emitting layer or the organic light-emitting device layer.

[0090] The display panel 110 according to an aspect of the present disclosure may further include a encapsulation layer. The encapsulation layer may be configured between the display component and the adhesive member to directly surround the display component. The encapsulation layer may be configured to prevent or reduce the infiltration of foreign substances (such as moisture or oxygen) into the organic light-emitting layer or the organic light-emitting device layer. The encapsulation layer may be formed in an inorganic material layer or an organic material layer, or may be formed in a multi-layer structure in the case where inorganic material layers and organic material layers are alternately stacked, but aspects of the present disclosure are not limited thereto. For example, the encapsulation layer may be omitted based on the structure of the display panel 110.

[0091] The touch panel (or touch screen) 120 may be configured to sense a user touch applied to the display member 100. For example, the touch panel 120 may be configured to sense a user touch based on a stylus (e.g., a digital pen) or a finger 10. The touch panel 120 may be coupled to, connected to, or integrated with the display panel 110. For example, the display panel 110 may be an organic light-emitting display panel in which a touch screen is integrated.

[0092] According to an aspect of the present disclosure, the touch panel 120 may be configured to cover the front surface of the display panel 110. For example, the touch panel 120 may be provided to cover the front surface of the base substrate or the front surface of the plate member.

[0093] According to another aspect of the present disclosure, the touch panel 120 may be configured between the display component of the display panel 110 and the plate member, but the aspects of the present disclosure are not limited thereto. For example, the touch panel 120 may be provided within the pixel array component of the display panel 110. In this case, the touch panel 120 may be an in-cell touch panel, a touch electrode layer, or a touch sensor layer, but the aspects of the present disclosure are not limited thereto. The touch panel 120 may include an electrode structure corresponding to a mutual capacitance type or a self-capacitance type, but the aspects of the present disclosure are not limited thereto, wherein the mutual capacitance type is configured such that a plurality of touch driving electrodes and a plurality of touch sensing electrodes cross each other, and the self-capacitance type is only configured with a plurality of touch sensing electrodes.

[0094] According to an aspect of the present disclosure, the display member 100 may further include a front member 130 at the front surface of the display panel 110.

[0095] The front member 130 may configure the outermost structure of the display device and may protect the screen of the display panel 110. The front member 130 may be provided at the front surface of the display panel 110. For example, the front member 130 may cover the front surface (or screen) of the display panel 110, and thus, may protect the display panel 110 and the touch panel 120 from the influence of external impacts (e.g., when dropped or external force applied by a user to the display device). For example, the front member 130 may be provided at the front surface of the touch panel 120. For example, the touch panel 120 may be provided between the front member 130 and the display panel 110. For example, the touch panel 120 may be connected or attached to the rear surface of the front member 130.

[0096] According to an aspect of the present disclosure, the front member 130 may include a transparent plastic material, a glass material, or a strengthened glass material, but the aspects of the present disclosure are not limited thereto. For example, the front member 130 may include a front structure, a front window, a cover window, a glass window, a cover screen, a screen cover, or a window glass, etc., but the aspects of the present disclosure are not limited thereto.

[0097] A display device according to an aspect of the present disclosure may further include a support member 300. The support member 300 may be configured or disposed at the rear surface (or rear surface side) 100a of the display member 100. The support member 300 may be configured to cover or surround the rear surface 100a of the display member 100.

[0098] The support member 300 may include an internal space 300s that covers the rear surface 100a of the display member 100. For example, the support member 300 may have a box shape with one side (or a portion or the upper side or upper portion) of the internal space 300s open.

[0099] The support member 300 according to an aspect of the present disclosure may include a first support portion 310 and a second support portion 330.

[0100] The first support portion 310 may be at the rear surface (or rear surface side) 100a of the display member 100. For example, the first support portion 310 may be configured to cover the rear surface 100a of the display member 100. For example, the first support portion 310 may be configured to cover the entire rear surface 100a of the display panel 110. The first support portion 310 may be spaced apart from the rear surface 100a of the display member 100 (or the display panel 110). For example, the first support portion 310 may be spaced apart from the rear surface 100a of the display member 100 (or the display panel 110) with the internal space 300s therebetween. For example, the first support portion 310 may be a bottom portion, a bottom plate, a support plate, a housing plate, or a housing bottom portion, etc., but aspects of the present disclosure are not limited thereto.

[0101] The second support portion 330 may be located at the peripheral portion of the display member 100. For example, the second support portion 330 may be configured or disposed at the peripheral portion of the rear surface 100a of the display member 100. For example, the second support portion 330 may be connected to the peripheral portion of the first support portion 310. For example, the second support portion 330 may include a structure in which the peripheral portion of the first support portion 310 is bent. For example, the second support portion 330 may be a lateral portion, a side wall, a support side wall, a housing lateral surface, or a housing side wall, etc., but aspects of the present disclosure are not limited thereto.

[0102] The second support portion 330 may be integrated into the first support portion 310. For example, the first support portion 310 and the second support portion 330 may be integrally formed. Thus, the internal space 300s surrounded by the second support portion 330 may be provided on the first support portion 310. Thus, the support member 300 may include a box shape with one side (or a portion, such as the upper side or upper portion) that may be open through the first support portion 310 and the second support portion 330.

[0103] The display device according to an aspect of the present disclosure may further include a coupling member 200 located between the display member 100 and the support member 300.

[0104] The support member 300 may be coupled or connected to the display member 100 through the coupling member 200. The support member 300 may be connected or coupled to the rear peripheral portion of the display member 100 through the coupling member 200. For example, the support member 300 may be connected or coupled to the rear peripheral portion of the front member 130 through the coupling member 200, but aspects of the present disclosure are not limited thereto. For example, the support member 300 may be connected or coupled to the rear peripheral portion of the front member 130 and may be configured to surround the lateral surface (or side surface) of each of the touch panel 120 and the display panel 110. For example, the support member 300 may surround all the lateral surfaces of each of the touch panel 120, the display panel 110, and the vibration device 500. For example, each of the touch panel 120, the display panel 110, and the vibration device 500 may be received (or inserted) into the internal space 300s of the support member 300.

[0105] According to an aspect of the present disclosure, the front member 130 of the display member 100 may be omitted. In this case, the coupling member 200 may be disposed between the display panel 110 and the support member 300. For example, when the front member 130 is omitted, the coupling member 200 may be disposed between the rear peripheral portion of the display panel 110 and the front peripheral portion of the first support portion 310.

[0106] The vibration device 500 may be disposed at the rear surface (or rear surface side) 100a of the display member 100. For example, the vibration device 500 may be configured to vibrate the display member 100. For example, the vibration device 500 may vibrate the display member 100 to generate (or output) ultrasonic waves USW. The vibration device 500 may vibrate based on a driving signal applied from the driving circuit component to displace or vibrate the display member 100, and thus may generate (or output) ultrasonic vibration or ultrasonic haptics. For example, the vibration device 500 may vibrate the display member 100 to generate (or output) ultrasonic vibration to the surface (or screen) of the display member 100. For example, when a user touches the surface (or screen) of the display member 100 with a finger 10 or a touch pen (e.g., a stylus), the vibration device 500 may generate (or output) ultrasonic waves USW so that the user can recognize ultrasonic vibration or ultrasonic haptics through the finger 10 or the touch pen. For example, the user's finger 10 or the touch pen (e.g., a stylus) may be a touch object. In the following description, the touch object 10 may be the user's finger 10 or the touch pen (e.g., a stylus).

[0107] The ultrasonic wave USW generated (or output) based on the vibration of the display member 100 caused by the vibration of the vibration device 500 can produce a squeeze film effect. The squeeze film effect can be referred to as surface ultrasonic lubrication, and the surface ultrasonic lubrication can change the coefficient of friction (or frictional force) between the touch object 10 and the display member 100 by changing the surface friction coefficient of the display member 100 to achieve a fine texture or roughness recognizable by the user. Therefore, when there is a user touch, the vibration device 500 can generate the ultrasonic wave USW corresponding to the haptic drive signal to change the coefficient of friction (or frictional force) between the touch object 10 and the display member 100, and thus, a virtual texture effect can be provided to the touch object 10, thereby providing the user with a virtual texture equal to or similar to the actual texture.

[0108] The vibration device 500 according to an aspect of the present disclosure can be configured to generate an out-of-plane vibration mode. For example, the vibration device 500 can vibrate the display member 100 in the out-of-plane vibration mode to provide ultrasonic vibration or ultrasonic haptics to the user. For example, the out-of-plane vibration mode can be a vertical direction vibration, a thickness direction vibration, or a longitudinal direction vibration. For example, the out-of-plane vibration mode can be a vertical direction vibration, a thickness direction vibration, or a longitudinal direction vibration with respect to the display member 100. For example, the display member 100 can be supplied with the out-of-plane vibration from the vibration device 500 to vibrate (or shift or drive), and thus, the ultrasonic wave USW can be generated (or output).

[0109] The vibration device 500 can be configured to include a piezoelectric material or an electroactive material having piezoelectric properties. For example, the vibration device 500 can be an active vibration member, a vibration generation device, a vibration generation device, an ultrasonic vibration device, an ultrasonic generation device, an ultrasonic generation device, a haptic vibration device, a haptic vibration device, a haptic generation device, or a haptic generation device, but the aspects of the present disclosure are not limited thereto.

[0110] According to an aspect of the present disclosure, the vibration device 500 can include a plurality of vibration generation devices 500-1 and 500-2. For example, the vibration device 500 can include a first vibration generation device 500-1 and a second vibration generation device 500-2. For example, the vibration device 500 can include a plurality of ultrasonic generation devices 500-1 and 500-2 or a first ultrasonic generation device 500-1 and a second ultrasonic generation device 500-2. For example, the display device according to an aspect of the present disclosure can include a plurality of vibration devices (or vibration generation devices) 500 or a plurality of ultrasonic generation devices 500-1 and 500-2.

[0111] The first vibration generating device 500-1 and the second vibration generating device 500-2 may be configured to be connected to a first area (or first rear area) A1 and a second area (or second rear area) A2 of the display member 100.

[0112] In the display member 100, the first area (or first rear area) A1 may be an upper area or a top area of the display member 100 with respect to the second direction Y. In the display member 100, the second area (or second rear area) A2 may be a lower area or a bottom area of the display member 100 with respect to the second direction Y. The display member 100 may include a plurality of haptic areas (or ultrasonic generating areas) corresponding to or overlapping with the first area A1 and the second area A2, respectively.

[0113] The first vibration generating device 500-1 may be configured to generate (or output) ultrasonic vibrations and / or ultrasonic haptics in the first area A1 of the display member 100. The first vibration generating device 500-1 may vibrate based on a driving signal supplied from the driving circuit component to vibrate the first area A1 of the display member 100, and thus, ultrasonic waves USW may be generated (or output) in the first area A1 of the display member 100.

[0114] The second vibration generating device 500-2 may be configured to generate (or output) ultrasonic vibrations and / or ultrasonic haptics in the second area A2 of the display member 100. The second vibration generating device 500-2 may vibrate based on a driving signal supplied from the driving circuit component to vibrate the second area A2 of the display member 100, and thus, ultrasonic waves USW may be generated (or output) in the second area A2 of the display member 100.

[0115] The vibration device 500 according to an aspect of the present disclosure may include a plurality of vibration generating components 510, a plurality of vibration transmitting components 530, and a connection portion 700.

[0116] The plurality of vibration generating components 510 may include a first vibration generating component 510-1 and a second vibration generating component 510-2. The first vibration generating component 510-1 may be disposed in the first vibration generating device 500-1. The first vibration generating component 510-1 may be connected to the first vibration transmitting component 530-1 by using an adhesive member 560. The second vibration generating component 510-2 may be disposed in the second vibration generating device 500-2. The second vibration generating component 510-2 may be connected to the second vibration transmitting component 530-2 by using an adhesive member 560.

[0117] Each of the plurality of vibration generating components 510 may include a piezoelectric material having piezoelectric properties. Each of the plurality of vibration generating components 510 may be configured to be a ceramic-based piezoelectric material capable of achieving relatively strong vibrations, or may be configured to include a piezoelectric ceramic having a perovskite-based crystal structure. For example, each of the plurality of vibration generating components 510 may be a vibration device, a vibration generating device, a vibration film, a vibration generating film, a vibrator, a vibration generator, an active vibrator, an active vibration generator, an actuator, an exciter, a film actuator, a film exciter, an ultrasonic actuator, or an active vibration member, etc., but aspects of the present disclosure are not limited thereto.

[0118] Each of the plurality of vibration generating components 510 may vibrate (or shift or drive) autonomously based on the vibration (or shift or drive) of the piezoelectric material according to a drive signal applied to the piezoelectric material. Each of the plurality of vibration generating components 510 may alternately repeat contraction and / or expansion through the piezoelectric effect (or piezoelectric properties) to vibrate (or shift or drive). For example, each of the plurality of vibration generating components 510 may alternately and repeatedly perform contraction and / or expansion based on the inverse piezoelectric effect to vibrate (or shift or drive) in an in-plane vibration mode. For example, the in-plane vibration mode may be a horizontal direction vibration or a lateral direction vibration. For example, the in-plane vibration mode may be a horizontal direction vibration or a lateral direction vibration with respect to the display member 100.

[0119] Each of the plurality of vibration generating components 510 may vibrate based on a drive signal to generate (or output) ultrasonic waves USW having a frequency of 20 kHz or higher. For example, the drive signal may be an ultrasonic drive signal or a haptic drive signal, but aspects of the present disclosure are not limited thereto.

[0120] The drive signal according to one aspect of the present disclosure may have a frequency of 20 kHz or higher. For example, the drive signal may have the same or a different frequency from the resonance frequency of each of the plurality of vibration generating components 510 to generate ultrasonic resonance.

[0121] The drive signal according to another aspect of the present disclosure may include an ultrasonic signal and a texture signal to provide virtual texture to a user using the squeeze film effect. For example, the ultrasonic signal may have a frequency of 20 kHz or higher. For example, the texture signal may be a low-frequency signal or a virtual texture signal, and may have a frequency of 100 Hz to 600 Hz. For example, based on the texture (or surface roughness) of the textured object, the texture signal may have one or more frequencies of 100 Hz to 600 Hz. For example, the textured object may include one or more materials such as paper, plastic, rubber, leather, fur, fabric, cloth, glass, mirror, wood, or metal, etc., but aspects of the present disclosure are not limited thereto.

[0122] According to another aspect of the present disclosure, the driving signal may be an amplitude modulation signal of an ultrasonic signal using a low-frequency signal, but aspects of the present disclosure are not limited thereto. For example, the driving signal may be generated by amplitude-modulating an ultrasonic signal based on a low-frequency signal of 100 Hz to 600 Hz, but aspects of the present disclosure are not limited thereto. Accordingly, the user may identify a virtual texture corresponding to the frequency of the texture signal rather than the texture of the display member 100 based on a change in the coefficient of friction (or frictional force) between the display member 100 and the touch object 10 (based on the ultrasonic wave USW included in the frequency of the texture signal).

[0123] The plurality of vibration transmission members 530 may be configured to transmit the vibrations of the plurality of vibration generating members 510 to the display member 100. The plurality of vibration transmission members 530 may be respectively connected to the plurality of vibration generating members 510. The plurality of vibration transmission members 530 may include a first vibration transmission member 530-1 and a second vibration transmission member 530-2.

[0124] According to an aspect of the present disclosure, the first vibration transmission member 530-1 may be disposed in the first vibration generating device 500-1. The first vibration transmission member 530-1 may be connected to the first vibration generating member 510-1. The first vibration transmission member 530-1 may be disposed between the rear surface 100a of the display member 100 and the first vibration generating member 510-1. The first vibration transmission member 530-1 may transmit the vibration of the first vibration generating member 510-1 to the display member 100.

[0125] According to one aspect of the present disclosure, the first vibration transmission component 530-1 may be configured to change the in-plane vibration mode (or the first vibration mode) of the first vibration generating component 510-1 into an out-of-plane vibration mode (or the second vibration mode). For example, the first vibration transmission component 530-1 may be configured to change the in-plane vibration mode transmitted to the display member 100 into an out-of-plane vibration mode based on the vibration of the first vibration generating component 510-1. For example, the first vibration transmission component 530-1 may be configured to change the in-plane vibration mode into an out-of-plane vibration mode based on the vibration of the first vibration generating component 510-1 to be transmitted to the display member 100. For example, the first vibration transmission component 530-1 may be configured to change the ultrasonic vibration (or longitudinal vibration) transmitted to the display member 100 based on the vibration of the first vibration generating component 510-1 into the thickness-direction vibration (or transverse vibration) of the display member 100. For example, the first vibration transmission component 530-1 may change the vibration of the first vibration generating component 510-1 into the thickness-direction vibration (or transverse vibration) of the display member 100 or the vibration in the normal direction (or longitudinal vibration) with respect to the surface of the first vibration generating component 510-1 to be transmitted to the display member 100, and thus, the efficiency of the squeeze film effect generated based on the vibration of the display member 100 may be increased (or maximized).

[0126] The second vibration transmission component 530-2 may be disposed in the second vibration generating device 500-2. The second vibration transmission component 530-2 may be connected to the second vibration generating component 510-2. The second vibration transmission component 530-2 may be disposed between the rear surface 100a of the display member 100 and the second vibration generating component 510-2. The second vibration transmission component 530-2 may transmit the vibration of the first vibration generating component 510-1 to the display member 100.

[0127] According to one aspect of the present disclosure, the second vibration transmission member 530-2 may be configured to change an in-plane vibration mode (or a first vibration mode) of the second vibration generating member 510-2 into an out-of-plane vibration mode (or a second vibration mode). For example, the second vibration transmission member 530-2 may be configured to change an in-plane vibration mode transmitted to the display member 100 into an out-of-plane vibration mode based on the vibration of the second vibration generating member 510-2. For example, the second vibration transmission member 530-2 may be configured to change an in-plane vibration mode into an out-of-plane vibration mode based on the vibration of the second vibration generating member 510-2 to be transmitted to the display member 100. For example, the second vibration transmission member 530-2 may be configured to change an ultrasonic vibration (or a longitudinal vibration) transmitted to the display member 100 into a thickness direction vibration (or a transverse vibration) of the display member 100 based on the vibration of the second vibration generating member 510-2. For example, the second vibration transmission member 530-2 may change the vibration of the second vibration generating member 510-2 into a thickness direction vibration (or a transverse vibration) of the display member 100 or a vibration in a normal direction (or a longitudinal vibration) with respect to the surface of the second vibration generating member 510-2 to be transmitted to the display member 100, and thus, the efficiency of the squeeze film effect generated based on the vibration of the display member 100 may be increased (or maximized).

[0128] According to one aspect of the present disclosure, each of the plurality of vibration transmission members 530 may be a vibration conversion member, a vibration mode conversion member, or a converter, but aspects of the present disclosure are not limited thereto.

[0129] According to one aspect of the present disclosure, each of the plurality of vibration transmission members 530 may be configured to include a material having a relatively high stiffness or a material having a Young's modulus or modulus of 1 GPa or greater to transmit the vibration of one or more vibration generating members 510 to the display member 100.

[0130] According to one aspect of the present disclosure, the vibration transmission member 530 according to one aspect of the present disclosure is a metal material or a plastic material. For example, the metal material of the vibration transmission member 530 may include any one or more of stainless steel, aluminum (Al), aluminum alloy, magnesium (Mg), magnesium alloy, copper (Cu) alloy, and magnesium-lithium (Mg-Li) alloy, but aspects of the present disclosure are not limited thereto. For example, the vibration transmission member 530 may be configured as a plastic material, such as plastic or styrene material, but aspects of the present disclosure are not limited thereto. For example, the plastic material of the vibration transmission member 530 may be configured as polycarbonate (PC), polyethylene terephthalate (PET), polyarylate (PAR), polyethylene naphthalate (PEN), polysulfone (PSF), polyethersulfone (PES), or cycloolefin copolymer (COC), etc., but aspects of the present disclosure are not limited thereto. For example, the styrene material may be an ABS material. The ABS material may be acrylonitrile, butadiene, and styrene.

[0131] According to one aspect of the present disclosure, the vibration device 500 may include a connection part 700. The connection part 700 may be disposed between a plurality of vibration generating devices 500-1 and 500-2 adjacent to each other. The connection part 700 may connect the plurality of vibration generating devices 500-1 and 500-2 to each other. The connection part 700 may connect the first vibration generating device 500-1 to the second vibration generating device 500-2.

[0132] According to one aspect of the present disclosure, the connection part 700 may be disposed between a plurality of vibration transmission members 530 adjacent to each other. The connection part 700 may connect the plurality of vibration transmission members 530 to each other. The connection part 700 may be disposed between the first vibration transmission member 530-1 and the second vibration transmission member 530-2. The connection part 700 may connect the first vibration transmission member 530-1 to the second vibration transmission member 530-2.

[0133] Reference Figure 3 , the connection part 700 may have a width W1 that is smaller than the width of each of the first vibration transmission member 530-1 to the second vibration transmission member 530-2. For example, the length D1 of the connection part 700 may be two times or more the width W1 of the connection part 700, but aspects of the present disclosure are not limited thereto. As another example, the length of the connection part 700 may be set to two times or three times or more the width of the connection part 700, and may be adjusted based on the vibration device. For example, the connection part 700 may include the same material as the vibration transmission member 530, but aspects of the present disclosure are not limited thereto. For example, the connection part 700 may be configured simultaneously with the vibration transmission member 530 using the same process.

[0134] According to an aspect of the present disclosure, the vibration device 500 may vibrate the display member 100 by using the connection portion 700 that connects the plurality of vibration transmission members 530-1 and 530-2 to each other, and thus, ultrasonic vibration and / or ultrasonic haptics may be provided to the user more effectively.

[0135] According to an aspect of the present disclosure, the plurality of vibration generating members 510 may be adhered to or connected to the first surface (or rear surface) 531a of each of the plurality of vibration transmission members 530 by the adhesion member 560. For example, the adhesion member 560 may be a first connection member or a first adhesion member, but aspects of the present disclosure are not limited thereto.

[0136] The adhesion member 560 according to an aspect of the present disclosure may be a double-sided tape, an adhesive, a double-sided adhesive, a joint, a thermosetting resin, etc., but aspects of the present disclosure are not limited thereto. For example, the adhesion member 560 may include one or more of a thermosetting adhesive, a photo-curable adhesive, and a thermo-joint adhesive (or thermosetting adhesive). For example, the adhesion member 560 may include a thermo-joint adhesive. The thermo-joint adhesive may be a thermally active type or a thermosetting type. For example, the adhesion member 560 including the thermo-joint adhesive may attach or couple the vibration generating member 510 and the vibration transmission member 530 by heat and pressure. For example, the adhesion member 560 including the thermo-joint adhesive (or thermosetting adhesive) may minimize or reduce or prevent the loss of vibration of the vibration generating member 510.

[0137] The adhesion member 560 according to another aspect of the present disclosure may include vibration transmission particles. For example, the vibration transmission particles may reduce or prevent or minimize the loss of vibration transmitted from the vibration generating member 510 to the vibration transmission member 530. For example, the vibration transmission particles may include a piezoelectric material (or a metal material, a metal nanowire, or a metal nanoparticle) included or added in an adhesive material such as a pressure-sensitive adhesive (PSA), an optically clear adhesive (OCA), or an optically clear resin (OCR), but aspects of the present disclosure are not limited thereto.

[0138] Each of a plurality of vibration devices or the first vibration generating device 500-1 and the second vibration generating device 500-2 can be connected to or supported by the rear surface 100a of the display member 100 by using the connection member 400. For example, each of a plurality of vibration devices or the first vibration generating device 500-1 and the second vibration generating device 500-2 can be connected to or supported by the rear surface 100a of the display panel 110 by using the connection member 400. For example, a plurality of vibration devices or the first vibration generating device 500-1 and the second vibration generating device 500-2 can be arranged in the same row. For example, a plurality of vibration devices or the first vibration generating device 500-1 and the second vibration generating device 500-2 can be arranged in the same row with respect to the second direction Y.

[0139] The vibration device 500 or the vibration transmission member 530 according to an aspect of the present disclosure can be connected or coupled to the display member 100. For example, the vibration device 500 or the vibration transmission member 530 can be connected to or supported at the rear surface 100a of the display member 100 by the connection member 400. For example, the vibration device 500 or the vibration transmission member 530 can be partially (or locally) connected to or partially (or locally) supported at the rear surface 100a of the display panel 110 by the connection member 400. For example, the connection member 400 can be a second connection member or a second adhesive member, but aspects of the present disclosure are not limited thereto.

[0140] The connection member 400 can include a material or an adhesive material for preventing or reducing or minimizing the loss of vibration (or vibration force or displacement force) transmitted from the vibration device 500 or the vibration transmission member 530 to the display member 100. For example, the connection member 400 can include a material or an adhesive material having a modulus or Young's modulus equal to or similar to that of the vibration transmission member 530 to transmit the vibration of the vibration transmission member 530 to the display member 100 without loss.

[0141] The connection member 400 according to an aspect of the present disclosure can have a modulus of 1 GPa (gigapascal) or more. For example, the connection member 400 can have a modulus of 1 GPa to 10 GPa, but aspects of the present disclosure are not limited thereto. For example, when the display device according to an aspect of the present disclosure is applied to a vehicle device (or a vehicle) and the connection member 400 includes a material or an adhesive material having a modulus of 1 GPa or more, the transmission efficiency of the vibration force (or displacement force) transmitted from the vibration device 500 or the vibration transmission member 530 to the display member 100 can be increased, and in a high-temperature environment and a low-temperature environment, the transmission efficiency of the vibration force (or displacement force) transmitted from the vibration device 500 or the vibration transmission member 530 to the display member 100 can not be reduced.

[0142] The material of the connecting member 400 or the adhesive material according to one aspect of the present disclosure may include an epoxy resin or a cyanoacrylate, but the aspects of the present disclosure are not limited thereto.

[0143] The material of the connecting member 400 or the adhesive material according to another aspect of the present disclosure may include, for example, a pressure-sensitive adhesive (PSA), an optically clear adhesive (OCA), an optically clear resin (OCR), an epoxy resin, an acrylic resin, a silicone resin, or a polyurethane resin, etc., but the aspects of the present disclosure are not limited thereto. For example, the connecting member 400 may include an acrylic-based adhesive material (or substance) having better adhesion and higher hardness.

[0144] When the display device according to one aspect of the present disclosure is applied to a non-vehicle-mounted device rather than a vehicle-mounted device, the connecting member 400 according to another aspect of the present disclosure may have a modulus (or Young's modulus) of less than 1 GPa. For example, the connecting member 400 may have a modulus of 10 MPa (megapascals) or less. For example, the connecting member 400 may have a modulus of 1 MPa to 10 MPa, but the aspects of the present disclosure are not limited thereto. For example, when the connecting member 400 has a modulus of less than 1 GPa or 10 MPa or less, the connecting member 400 may have a thickness of 1 nm (nanometers) or more and 1 mm (millimeters) or less to prevent or minimize or reduce the loss of vibration (or vibration force) transmitted from the vibration device 500 or the vibration transmission member 530 to the display member 100 caused by the relatively low modulus, but the aspects of the present disclosure are not limited thereto. For example, the connecting member 400 may include a double-sided adhesive, a double-sided tape, a double-sided foam tape, a double-sided foam pad, or an adhesive, etc., but the aspects of the present disclosure are not limited thereto.

[0145] The connecting member 400 according to another aspect of the present disclosure may include a material or an adhesive material having high thermal conductivity or large heat capacity to dissipate the heat generated during the vibration of the vibration device 500 to the display member 100. For example, the connecting member 400 may be a heat dissipation member. For example, the connecting member 400 may include heat transfer particles. For example, the heat transfer particles may increase the vibration (or vibration force) transmitted from the vibration device 500 to the display member 100, or may increase the heat transfer rate of the heat transmitted from the vibration device 500 to the display member 100. The heat transfer particles may include a metal material, metal nanoparticles, or metal nanowires, but the aspects of the present disclosure are not limited thereto.

[0146] According to one aspect of the present disclosure, the connecting member 400 may have a thickness for reducing or preventing physical contact between the vibration device 500 and the display member 100. For example, the connecting member 400 may be adjusted based on the heat transfer efficiency (or heat capacity) transferred from the vibration device 500 to the display member 100. For example, the connecting member 400 may be adjusted based on one or more of the thickness for reducing or preventing physical contact between the vibration device 500 and the display member 100 and the thickness for maximizing or increasing the heat transfer efficiency (or heat capacity) transferred from the vibration device 500 to the display member 100, but aspects of the present disclosure are not limited thereto.

[0147] The display device according to one aspect of the present disclosure may further include an air gap AG between the display member 100 and the vibration generating component 510.

[0148] The air gap AG may be disposed between the display member 100 and the vibration device 500 (or the vibration transfer member 530). For example, the air gap AG may be provided (or set) through partial connection (or partial coupling) between the display member 100 and the vibration device 500 (or the vibration transfer member 530). For example, the vibration device 500 or the vibration transfer member 530 may be disposed at the rear surface 100a of the display member 100 with the air gap AG therebetween. The air gap AG may allow the vibration device 500 and the display member 100 to vibrate independently of each other. In addition, the air gap AG may achieve smooth vibration of the vibration device 500 during the vibration of the vibration device 500 and free strain of the display member 100 based thereon, and thus, may increase the vibration width of the display member 100, thereby increasing the intensity of the ultrasonic wave USW generated based on the vibration of the display member 100.

[0149] Figure 4 is a view showing Figure 2 a perspective view of the vibration transfer member according to one aspect of the present disclosure as shown.

[0150] Reference Figure 2 and Figure 4 According to one aspect (or the first aspect) of the present disclosure, each of the plurality of vibration transfer members 530 may include a base member 531 and a vibration transfer member 533.

[0151] The base member 531 may be configured to vibrate based on the vibration (or displacement or drive) of one or more vibration generating components 510. The base member 531 may be configured to support one or more vibration generating components 510. The base member 531 may have a size equal to or larger than that of the vibration generating component 510. The base member 531 may have the same shape as the vibration generating portion 510, but aspects of the present disclosure are not limited thereto.

[0152] The base member 531 may be adhered or connected to a first surface (e.g., the front surface) of one or more vibration generating members 510. For example, a first surface (e.g., the rear surface) 531a of the base member 531 may be adhered or connected to a first surface (e.g., the front surface) of one or more vibration generating members 510 by an adhesive member 560. Accordingly, the base member 531 may vibrate based on the vibration of one or more vibration generating members 510. For example, a first surface (e.g., the rear surface) 531a of the base member 531 may be a first surface (e.g., the rear surface) of the vibration transfer member 530. For example, the base member 531 may be a plate, a base plate, a vibration plate, a vibration transfer plate, a base frame, a main body, or a base structure, but aspects of the present disclosure are not limited thereto. For example, the base member 531 may include any one of a polygon, a square, a rectangle, a rhombus, and a circle, but aspects of the present disclosure are not limited thereto. For example, a thickness T1 of the base member 531 according to an aspect of the present disclosure may be 0.01 mm or greater and 5 mm or less, but aspects of the present disclosure are not limited thereto. For example, based on a resonance frequency of the display member 100 and / or a frequency of the ultrasonic wave USW generated based on the vibration of the display member 100, the first thickness T1 of the base member 531 may be 0.01 mm or greater. For example, the resonance frequency of the display member 100 and / or the frequency of the ultrasonic wave USW generated based on the vibration of the display member 100 may be changed or tuned based on the size (or area) of one or more vibration generating members 510 and the size (or area) and thickness T1 of the base member 531. For example, the size (or area) and / or thickness T1 of the base member 1531 may be changed or optimized such that the frequency of the ultrasonic wave USW generated based on the vibration of the display member 100 corresponds to (or matches) the resonance frequency of the display member 100.

[0153] The vibration transmission member 533 may be configured to transmit the vibration of the base member 531 to the display member 100. The vibration transmission member 533 may be disposed between the base member 531 and the display member 100. The vibration transmission member 533 may be connected to the base member 531. The vibration transmission member 533 may be disposed on or connected to the second surface (e.g., the front surface) 531b of the base member 531 facing the display member 100. For example, the vibration transmission member 533 may be disposed on or connected to two peripheral portions or two end portions of the base member 531. The vibration transmission member 533 may be connected or coupled to the rear surface 100a of the display member 100. For example, the vibration transmission member 533 may be connected or coupled to the rear surface 100a of the display member 100 through the connecting member 400. For example, the vibration transmission member 533 may be a bridging portion, a leg portion, a rib portion, a protruding portion, a bending portion, a bridging line, a rib line, or a protruding line, a vibration transmission structure, or a vibration transmission line, but aspects of the present disclosure are not limited thereto.

[0154] The vibration transmission member 533 may have a height (or thickness) for reducing or preventing physical contact between the display member 100 and the base member 531. For example, the vibration transmission member 533 may be configured to have a height (or thickness) from the second surface 531b of the base member 531. For example, the height H1 of the vibration transmission member 533 may be the length (or distance) in the third direction Z between the second surface 531b of the base member 531 and the uppermost surface of the vibration transmission member 533. For example, the height H1 of the vibration transmission member 533 may be the same as or different from the thickness T1 of the base member 531. For example, the height H1 of the vibration transmission member 533 may be set to 0.1 mm or more, but aspects of the present disclosure are not limited thereto. For example, the height H1 of the vibration transmission member 533 may be adjusted to 0.1 mm or more based on the total thickness of the device and the stiffness and dimensions of the base member 531. For example, the third direction Z may be the thickness direction of the base member 531 or the display member 100 or the Z-axis direction in the XYZ coordinate system.

[0155] According to one aspect of the present disclosure, the vibration transfer member 533 may include a first vibration transfer member 533a and a second vibration transfer member 533b. For example, the vibration transfer member 533 may include the first vibration transfer member 533a and the second vibration transfer member 533b, and the first vibration transfer member 533a and the second vibration transfer member 533b are disposed at or connected to two peripheral portions or two end portions of the base member 531. For example, the vibration transfer member 533 may include the first vibration transfer member 533a and the second vibration transfer member 533b that protrude from two peripheral portions or two end portions of the base member 531. The base member 531, the first vibration transfer member 533a, and the second vibration transfer member 533b may include the above-mentioned plastic material or metal material, but aspects of the present disclosure are not limited thereto.

[0156] According to one aspect of the present disclosure, the first vibration transfer member 533a may be disposed at a first lateral peripheral portion of the base member 531. For example, the first vibration transfer member 533a may be disposed at or connected to a first peripheral portion or a first lateral end portion of the base member 531. For example, the first vibration transfer member 533a may be disposed or connected to a first peripheral portion or a first lateral end portion adjacent to a first side of the base member 531. For example, the first vibration transfer member 533a may bend (or protrude) from a first peripheral portion or a first lateral end portion of the base member 531 toward the rear surface 100a of the display member 100. For example, the first vibration transfer member 533a may be configured to have a first height (or thickness).

[0157] According to one aspect of the present disclosure, the second vibration transfer member 533b may be disposed at a second lateral peripheral portion of the base member 531 parallel to the first vibration transfer member 533a. For example, the second vibration transfer member 533b may be disposed at or connected to a second peripheral portion or a second lateral end portion of the base member 531. For example, the second vibration transfer member 533b may be disposed at or connected to a second peripheral portion or a second lateral end portion adjacent to a second side of the base member 531 parallel to the first side. For example, the second vibration transfer member 533b may bend (or protrude) from a second peripheral portion or a second lateral end portion of the base member 531 toward the rear surface 100a of the display member 100. For example, the second vibration transfer member 533b may be configured to have a first height (or thickness).

[0158] Each of the first vibration transmission member 533a and the second vibration transmission member 533b may include a wire shape having a specific width. For example, each of the first vibration transmission member 533a and the second vibration transmission member 533b may extend along the first direction X and may include a wire shape having a predetermined width parallel to the second direction Y intersecting the first direction X. For example, the first direction X may be the horizontal length direction or the lateral length direction of the base member 531 or the display member 100 or the X-axis direction of the XYZ coordinate system. For example, the second direction Y may be the vertical length direction or the longitudinal length direction of the base member 531 or the display member 100 or the Y-axis direction of the XYZ coordinate system.

[0159] According to an aspect of the present disclosure, each of the first vibration transmission member 533a and the second vibration transmission member 533b may be vertically provided at or connected to the second surface 531b of the base member 531. For example, the angle between the second surface 531b of the base member 531 and each of the first vibration transmission member 533a and the second vibration transmission member 533b may be 90 degrees.

[0160] Reference Figure 2 and Figure 4 and, each of the first vibration transmission member 533a and the second vibration transmission member 533b may be connected or coupled to the rear surface 100a of the display member 100 through the connection member 400. The first vibration transmission member 533a and the second vibration transmission member 533b may provide an air gap AG between the rear surface 100a of the display member 100 and the base member 531. For example, the air gap AG may be provided (or supplied) between the rear surface 100a of the display member 100 and the base member 531 through the first vibration transmission member 533a and the second vibration transmission member 533b. Therefore, the first vibration transmission member 533a and the second vibration transmission member 533b may be provided at or connected to the second surface 531b of the base member 531 with a parallel air gap AG therebetween. For example, each of the first vibration transmission member 533a and the second vibration transmission member 533b may overlap or not overlap with one or more vibration generating components 510 based on the size of the base member 531 and / or one or more vibration generating components 510.

[0161] According to an aspect of the present disclosure, the vibration transmission member 533 of the vibration device 500 may be connected or coupled to the display member 100 through a partial connection scheme based on the connection member 400, and thus, compared with the overall connection scheme between the vibration transmission component 530 and the display member 100 through the connection member 400, the connection process (or attachment process) and the connection quality (or attachment performance) between the display member 100 and the vibration device 500 may be improved.

[0162] According to one aspect of the present disclosure, the connecting portion 700 may be disposed between a plurality of vibration generating members 530. The connecting portion 700 may be disposed between the first vibration generating device 500-1 and the second vibration generating device 500-2 that are adjacent to each other. The connecting portion 700 may be connected between the base members 531 that are adjacent to each other. The connecting portion 700 may be connected between the base member 531 of the first vibration generating device 500-1 and the base member 531 of the second vibration generating device 500-2. For example, the connecting portion 700 may be connected to the central region of the base member 531 of the first vibration generating device 500-1 and the central region of the base member 531 of the second vibration generating device 500-2. For example, the connecting portion 700 may be connected to the second vibration transmission member 533b of the first vibration generating device 500-1 and the first vibration transmission member 533a of the second vibration generating device 500-2 that are adjacent to each other. For example, the connecting portion 700 may protrude in the horizontal direction (or Y direction) from the base member 531 of the first vibration generating device 500-1. For example, the connecting portion 700 may protrude in the horizontal direction (or -Y direction) from the base member 531 of the second vibration generating device 500-2.

[0163] According to one aspect of the present disclosure, the width or the horizontal direction length of the connecting portion 700 or the length of the connecting portion 700 in the X-axis direction of the XYZ coordinate system may be smaller than the width or the horizontal direction length of the base member 531 or the length of the base member 531 in the X-axis direction of the XYZ coordinate system. For example, the width of the base member 531 may be two times or more than two times the width of the connecting portion 700. For example, the width or the horizontal direction length of the connecting portion 700 and the length of the connecting portion 700 in the X-axis direction of the XYZ coordinate system may be smaller than the length and the vertical direction length of the connecting portion 700 and the length of the base member 531 in the Y-axis direction of the XYZ coordinate system. For example, the width of the connecting portion 700 may be smaller than the length of the connecting portion 700. For example, the length of the connecting portion 700 may be two times or more than two times the width of the connecting portion 700, but aspects of the present disclosure are not limited thereto. As another example, the length of the connecting portion 700 may be set to two times or three times or more than three times the width of the connecting portion 700, and may be adjusted based on the vibration device.

[0164] According to one aspect of the present disclosure, the vibration device may include a connection part 700, and thus, the vibration (or longitudinal vibration or in-plane vibration) of each of the plurality of vibration generating parts 510 may be changed to the thickness direction vibration (or transverse vibration or out-of-plane vibration) of the display member 100 to be transmitted to the display member 100, thereby improving the efficiency of the squeeze film effect generated based on the vibration of the display member 100. Accordingly, user recognition can be enhanced in ultrasonic vibration and / or ultrasonic haptics and / or virtual texture.

[0165] Figure 5 FIG. is a diagram showing a display device according to another aspect of the present disclosure. Figure 6 FIG. shows Figure 1 a rear view of the plurality of vibration devices and the display member shown. Figure 5 and Figure 6 FIG. shows an aspect achieved by modifying the vibration transmission part of the vibration device described above with reference to Figures 1 to 4 Accordingly, in the following description, the vibration transmission part and other elements other than the elements related thereto are denoted by the same reference numerals, and repeated descriptions are omitted.

[0166] Referring to Figure 1 , Figure 5 and Figure 6 , in a display device according to another aspect of the present disclosure, the vibration device 500 may include a plurality of vibration generating devices 500-1 to 500-3. For example, the vibration device 500 may include a first vibration generating device 500-1 to a third vibration generating device 500-3. For example, the vibration device 500 may include a plurality of ultrasonic generating devices 500-1 to 500-3 or a first ultrasonic generating device 500-1 to a third ultrasonic generating device 500-3. For example, a display device according to another aspect of the present disclosure may include one or more vibration devices (or vibration generating devices) 500 or one or more ultrasonic generating devices 500-1 to 500-3.

[0167] The first vibration generating device 500-1 to the third vibration generating device 500-3 may be configured to be connected to the first area (or first rear area) A1 to the third area (or third rear area) A3 of the display member 100.

[0168] In the display member 100, with respect to the second direction Y, the first region (or the first rear region) A1 may be the upper region or the top region of the display member 100. The second region (or the second rear region) A2 may be the central region or the middle region of the display member 100. The third region (or the third rear region) A3 may be the lower region or the bottom region of the display member 100. For example, the second region A2 may be located between the first region A1 and the third region A3. The display member 100 may include a plurality of haptic regions (or ultrasonic generation regions) corresponding to or overlapping with the first region A1 to the third region A3, respectively.

[0169] The first vibration generation device 500-1 and the second vibration generation device 500-2 may be configured to be substantially equal to the aspects of the present disclosure described above with reference to Figures 1 to 4 the description.

[0170] The third vibration generation device 500-3 may be configured to generate (or output) ultrasonic vibrations and / or ultrasonic haptics in the third region A3 of the display member 100. The third vibration generation device 500-3 may vibrate based on a drive signal supplied from the drive circuit component to vibrate the third region A3 of the display member 100, and thus, ultrasonic waves USW may be generated (or output) in the third region A3 of the display member 100.

[0171] The third vibration generation device 500-3 may be connected to or supported by the rear surface 100a of the display member 100 by using the connection member 400. For example, the third vibration generation device 500-3 may be connected to or supported by the rear surface 100a of the display panel 110 by using the connection member 400. For example, the plurality of vibration devices or the first vibration generation device 500-1 to the third vibration generation device 500-3 may be arranged in the same row. For example, the plurality of vibration devices or the first vibration generation device 500-1 to the third vibration generation device 500-3 may be arranged in the same row with respect to the second direction Y.

[0172] The third vibration generation device 500-3 may include elements identical to those of one of the first vibration generation device 500-1 and the second vibration generation device 500-2 described above with reference to Figures 1 to 4 the description, and thus, the repeated description is omitted.

[0173] According to another aspect of the present disclosure, each of the first vibration generating device 500-1 to the third vibration generating device 500-3 may be driven simultaneously or may be driven individually, but the aspects of the present disclosure are not limited thereto. For example, a plurality of vibration devices or one or more of the first vibration generating device 500-1 to the third vibration generating device 500-3 may be driven simultaneously based on a user's touch area. For example, a plurality of vibration devices may be driven simultaneously, or two or more of the first vibration generating device 500-1 to the third vibration generating device 500-3 that overlap with or are disposed at the periphery of the user's touch area. Accordingly, uniform ultrasonic vibrations and / or ultrasonic haptics may be generated in and around the user's touch area, and thus, a seamless haptic effect and / or virtual texture may be continuously provided to the user.

[0174] A display device according to another aspect of the present disclosure may provide substantially the same effects as one aspect of the present disclosure. In addition, a display device according to another aspect of the present disclosure may provide a haptic effect and / or virtual texture to a user in an entire area (without a dead zone) of the surface of the display member 100 by using a plurality of vibration generating devices 500-1 to 500-3.

[0175] According to another aspect of the present disclosure, the connection part 700 may include a first connection part 700-1 and a second connection part 700-2. The first connection part 700-1 may be configured to be substantially equal to the connection part 700 according to the aspects of the present disclosure described above with reference to Figure 4 Thus, a repeated description of the first connection part 700-1 is omitted.

[0176] The second connecting portion 700-2 can be disposed between the second vibration generating device 500-2 and the third vibration generating device 500-3 adjacent to each other. The second connecting portion 700-2 can be disposed between the second vibration transmitting member 530-2 and the third vibration transmitting member 530-3 adjacent to each other. The second connecting portion 700-2 can be connected between the base members 531 adjacent to each other. The second connecting portion 700-2 can be connected between the base member 531 of the second vibration transmitting member 530-2 and the base member 531 of the third vibration transmitting member 530-3. For example, the second connecting portion 700-2 can be connected to the central region of the base member 531 of the second vibration transmitting member 530-2 and the central region of the base member 531 of the third vibration transmitting member 530-3. However, aspects of the present disclosure are not limited thereto. For example, the second connecting portion 700-2 can be disposed between the second vibration transmitting member 533b of the second vibration generating device 500-2 and the first vibration transmitting member 533a of the third vibration generating device 500-3 adjacent to each other. For example, the second connecting portion 700-2 can protrude in the horizontal direction (or Y direction) from the base member 531 of the second vibration transmitting member 530-2. For example, the second connecting portion 700-2 can protrude in the horizontal direction (or -Y direction) from the base member 531 of the third vibration transmitting member 530-3. For example, the width of the second connecting portion 700-2 can be less than the length of the second connecting portion 700-2. For example, the length of the second connecting portion 700-2 can be two times or more times the width of the second connecting portion 700-2, but aspects of the present disclosure are not limited thereto. As another example, the length of the second connecting portion 700-2 can be set to two times or three times or more times the width of the second connecting portion 700-2, and can be adjusted based on the vibration device.

[0177] The vibration device according to an aspect of the present disclosure can include a first connecting portion 700-1 and a second connecting portion 700-2 disposed between a plurality of vibration transmitting members 530-1 to 530-3, and thus can change the vibration (or longitudinal vibration or in-plane vibration) of the vibration generating member 510 into the thickness direction vibration (or transverse vibration or out-of-plane vibration) of the display member 100 to transmit to the display member 100, thereby improving the efficiency of the squeeze film effect generated based on the vibration of the display member 100. Therefore, the user's recognition can be enhanced on ultrasonic vibration and / or ultrasonic haptics and / or virtual texture.

[0178] Figure 7 is a diagram showing a display device according to another aspect of the present disclosure. Figure 8 is a diagram showing Figure 7 a rear view of the plurality of vibration devices and the display member shown. Figure 7 andFigure 8 illustrates aspects achieved by modifying the vibration transmission member of the vibration device described above with reference to Figures 1 to 4 the description. Figure 7 and Figure 8 illustrates aspects of adding a configuration of the vibration transmission member to the vibration device described above with reference to Figure 5 and Figure 6 the description. Therefore, in the following description, the vibration transmission member and other elements other than the elements related thereto are referred to by the same reference numerals, and repeated descriptions are omitted.

[0179] Referring to Figure 1 , Figure 5 , Figure 7 and Figure 8 , in a display device according to another aspect of the present disclosure, the vibration device 500 may include a plurality of vibration generating devices 500-1 to 500-4. For example, the vibration device 500 may further include a fourth vibration generating device 500-4. For example, the vibration device 500 may further include a fourth ultrasonic generating device 500-4.

[0180] The first vibration generating device 500-1 to the fourth vibration generating device 500-4 may be configured to be connected to the first region (or first rear region) A1 to the fourth region (or fourth rear region) A4 of the display member 100.

[0181] In the display member 100, with respect to the second direction Y, the first region (or first rear region) A1 may be an upper region or a top region of the display member 100. Each of the second region (or second rear region) A2 and the third region (or third rear region) A3 may be a central region or an intermediate region of the display member 100. The fourth region (or fourth rear region) A4 may be a lower region or a bottom region of the display member 100. For example, the second region A2 and the third region A3 may be between the first region A1 and the fourth region A4. The display member 100 may include a plurality of tactile regions (or ultrasonic generating regions) corresponding to or overlapping the first region A1 to the fourth region A4, respectively.

[0182] The first vibration generating device 500-1 to the third vibration generating device 500-3 may be configured to be substantially equal to another aspect of the present disclosure described above with reference to Figure 5 and Figure 6 the description.

[0183] The fourth vibration generating device 500-4 may be configured to generate (or output) ultrasonic vibrations and / or ultrasonic haptics in the fourth area A4 of the display member 100. The fourth vibration generating device 500-4 may vibrate based on a driving signal supplied from a driving circuit component to vibrate the fourth area A4 of the display member 100, and thus, ultrasonic waves USW may be generated (or output) in the fourth area A4 of the display member 100.

[0184] The fourth vibration generating device 500-4 may be connected to or supported by the rear surface 100a of the display member 100 by using a connection member 400. For example, the fourth vibration generating device 500-4 may be connected to or supported by the rear surface 100a of the display panel 110 by using a connection member 400. For example, a plurality of vibration devices or the first vibration generating device 500-1 to the fourth vibration generating device 500-4 may be arranged in the same row. For example, a plurality of vibration devices or the first vibration generating device 500-1 to the fourth vibration generating device 500-4 may be arranged in the same row with respect to the second direction Y.

[0185] The fourth vibration generating device 500-4 may include elements that are the same as or substantially the same as those of one of the first vibration generating device 500-1 to the third vibration generating device 500-3 described above Figure 5 and Figure 6 and thus, a repetitive description is omitted.

[0186] According to another aspect of the present disclosure, each of the first vibration generating device 500-1 to the fourth vibration generating device 500-4 may be driven simultaneously or may be driven individually, but aspects of the present disclosure are not limited thereto. For example, a plurality of vibration devices or one or more of the first vibration generating device 500-1 to the fourth vibration generating device 500-4 may be driven simultaneously based on a user's touch area. For example, a plurality of vibration devices may be driven simultaneously, or two or more vibration generating devices 500-1 to 500-4 among the first vibration generating device 500-1 to the fourth vibration generating device 500-4 that overlap with or are provided at the periphery of the user's touch area may be driven simultaneously. Thus, uniform ultrasonic vibrations and / or ultrasonic haptics may be generated in and around the user's touch area, and thus, a seamless haptic effect and / or virtual texture may be continuously provided to the user.

[0187] A display device according to another aspect of the present disclosure may provide substantially the same effects as aspects of the present disclosure. In addition, a display device according to another aspect of the present disclosure may provide a haptic effect and / or virtual texture to a user in an entire area (without a dead zone) on the surface of the display member 100 by using a plurality of vibration generating devices 500-1 to 500-4.

[0188] According to another aspect of the present disclosure, the connection portion 700 may include a first connection portion 700-1, a second connection portion 700-2, and a third connection portion 700-3. The first connection portion 700-1 and the second connection portion 700-2 may be configured to be substantially equal to the connection portion 700 according to one aspect of the present disclosure described above with reference to Figure 4 Therefore, the repeated description of the first connection portion 700-1 and the second connection portion 700-2 is omitted.

[0189] The third connection portion 700-3 may be configured between the third vibration generating device 500-3 and the fourth vibration generating device 500-4 adjacent to each other. The third connection portion 700-3 may be configured between the third vibration transmission member 530-3 and the fourth vibration transmission member 530-4 adjacent to each other. The third connection portion 700-3 may be connected between the base members 531 adjacent to each other. The third connection portion 700-3 may be connected between the base member 531 of the third vibration transmission member 530-3 and the base member 531 of the fourth vibration transmission member 530-4. For example, the third connection member 700-3 may be connected to the central regions of the base member 531 of the third vibration transmission member 530-3 and the base member 531 of the fourth vibration transmission member 530-4. For example, the third connection portion 700-3 may be configured between the second vibration transmission member 533b of the third vibration generating device 500-3 and the first vibration transmission member 533a of the fourth vibration generating device 500-4 adjacent to each other. For example, the third connection portion 700-3 may protrude in the horizontal direction (or the Y direction) from the base member 531 of the third vibration transmission member 530-3. For example, the third connection portion 700-3 may protrude in the horizontal direction (or the -Y direction) from the base member 531 of the fourth vibration transmission member 530-4. For example, the width of the third connection portion 700-3 may be less than the length of the third connection portion 700-3. For example, the length of the third connection portion 700-3 may be two or more times the width of the third connection portion 700-3, but aspects of the present disclosure are not limited thereto. As another example, the length of the third connection portion 700-3 may be set to two or three or more times the width of the third connection portion 700-3 and may be adjusted based on the vibration device.

[0190] A vibration device according to an aspect of the present disclosure may include first connection portions 700-1 to third connection portions 700-3 disposed between a plurality of vibration transmission members 530-1 to 530-4, and may thus change the vibration (or longitudinal vibration or in-plane vibration) of the vibration generating member 510 into a thickness-direction vibration (or transverse vibration or out-of-plane vibration) of the display member 100 to be transmitted to the display member 100, thereby improving the efficiency of the squeeze film effect generated based on the vibration of the display member 100. Accordingly, user recognition can be enhanced in ultrasonic vibration and / or ultrasonic haptics and / or virtual texture.

[0191] Figure 9 FIG. is a rear view showing a plurality of vibration devices and a display member according to another aspect of the present disclosure. Figure 9 FIG. shows an aspect achieved by modifying the vibration transmission members of the vibration device described above with reference to Figures 1 to 4 Accordingly, in the following description, the vibration transmission members and other elements other than the elements related thereto are denoted by the same reference numerals, and repeated descriptions are omitted.

[0192] With reference to Figure 2 and Figure 9 , a display device according to an aspect of the present disclosure may include a display member 100, a vibration generating device 500, and a connection portion 700.

[0193] The display member 100 may be configured to display an image. The display member 100 and the connection portion 700 according to another aspect of the present disclosure may be the display member 100 and the connection portion 700 described above with reference to Figure 2 Accordingly, the description thereof is omitted.

[0194] The vibration generating device 500 may be configured to vibrate the display member 100. The vibration generating device 500 may include a plurality of vibration generating devices 500-1 to 500-7. For example, the vibration generating device 500 may include a first vibration generating device 500-1 to a seventh vibration generating device 500-7. Each of the first vibration generating device 500-1 to the seventh vibration generating device 500-7 may be substantially the same as one or more of the vibration generating devices 500-1 to 500-4 of the vibration device 500 described above with reference to Figures 2 to 8 Accordingly, the description thereof is omitted.

[0195] According to another aspect of the present disclosure, a plurality of connection portions 700 may be disposed between two adjacent vibration generating devices among the plurality of vibration generating devices 500-1 to 500-7. For example, the display device according to another aspect of the present disclosure may achieve 98% or higher vibration in a vibration effective area of 0.2 μm. Accordingly, the display device according to another aspect of the present disclosure may be applied to a large-area display device.

[0196] Figure 10 It is a rear view showing a plurality of vibration devices and a display member according to another aspect of the present disclosure. Figure 10 It shows an aspect achieved by modifying the vibration transmission member of the vibration device described above with reference to Figures 1 to 8 Therefore, in the following description, the vibration transmission member and other elements other than the elements related thereto are referred to by the same reference numerals, and repeated descriptions are omitted.

[0197] Reference Figure 2 , Figure 5 and Figure 10 , a display device according to an aspect of the present disclosure may include a display member 100, a vibration generating device 500, and a connection portion 700.

[0198] The display member 100 may be configured to display an image. The display member 100 and the connection portion 700 according to another aspect of the present disclosure may be the display member 100 and the connection portion 700 described above with reference to Figure 2 description.

[0199] The vibration generating device 500 may be configured to vibrate the display member 100. The vibration generating device 500 may include a plurality of vibration devices 500A to 500C. For example, the vibration generating device 500 may include a first vibration device 500A to a third vibration device 500C. For example, the first vibration device 500A and the second vibration device 500B may have a configuration substantially the same as the configuration of the vibration device 500 described above with reference to Figures 2 to 4 description. For example, the third vibration device 500C may have a configuration substantially the same as the configuration of the vibration device 500 described above with reference to Figure 5 and Figure 6 description. However, aspects of the present disclosure are not limited thereto.

[0200] According to another aspect of the present disclosure, the first vibration device 500A and the third vibration device 500C may have a configuration substantially the same as the configuration of the vibration device 500 described above with reference to Figures 2 to 4 description, and the second vibration device 500B may have a configuration substantially the same as the configuration of the vibration device 500 described above with reference to Figure 5 and Figure 6 description.

[0201] According to another aspect of the present disclosure, the first vibration device 500A and the third vibration device 500C may have a configuration substantially the same as the configuration of the vibration device 500 described above with reference to Figure 5 and Figure 6 description, and the second vibration device 500B may have a configuration substantially the same as the configuration of the vibration device 500 described above with reference toFigures 2 to 4 A configuration that is substantially the same as the configuration of the described vibration device 500.

[0202] Reference Figure 2 、 Figure 5 and Figure 10 Among the plurality of vibration devices 500A to 500C, at least some may include different numbers of vibration transmission components 530 and vibration generation components 510. For example, at least some of the first vibration device 500A to the third vibration device 500C may include different numbers of vibration transmission components 530 and vibration generation components 510. For example, each of the first vibration device 500A and the second vibration device 500B may include two vibration transmission components 530 and two vibration generation components 510. For example, the third vibration device 500C may include three vibration transmission components 530 and three vibration generation components 510.

[0203] Among the plurality of vibration devices 500A to 500C, at least some may include different numbers of connection parts 700. For example, at least some of the first vibration device 500A to the third vibration device 500C may include different numbers of connection parts 700. For example, each of the first vibration device 500A and the second vibration device 500B may include one connection part 700. For example, the third vibration device 500C may include two connection parts 700. For example, the connection part 700 may not be arranged between the plurality of vibration devices 500A to 500C. For example, the connection part 700 may not be arranged between the first vibration device 500A to the third vibration device 500C. For example, a display device according to another aspect of the present disclosure may achieve 99% or higher vibration in a vibration effective area of 0.2 μm. Therefore, a display device according to another aspect of the present disclosure can be applied to a large-area display device.

[0204] Figure 11 is a rear view showing a plurality of vibration devices and a display member according to another aspect of the present disclosure. Figure 11 Shows an aspect achieved by modifying the vibration transmission component of the vibration device described above with reference to Figures 1 to 8 In the following description, the vibration transmission component and other components other than the elements related thereto are referred to by the same reference numerals, and repeated descriptions are omitted.

[0205] Reference Figure 5 、 Figure 7 and Figure 11 According to one aspect of the present disclosure, a display device may include a display member 100, a vibration generation device 500, and a connection part 700.

[0206] The display member 100 can be configured to display an image. The display member 100 and the connection portion 700 according to another aspect of the present disclosure can be the display member 100 and the connection portion 700 described above with reference to Figure 2 the display member 100 and the connection portion 700 described.

[0207] The vibration generating device 500 can be configured to vibrate the display member 100. The vibration generating device 500 can include a plurality of vibration devices 500A and 500B. For example, the vibration generating device 500 can include a first vibration device 500A and a second vibration device 500B. Each of the first vibration device 500A and the second vibration device 500B can be one of the vibration devices 500 described above with reference to Figures 2 to 8 the vibration device 500 described. For example, the first vibration device 500A can have a configuration substantially the same as the configuration of the vibration device 500 described above with reference to Figure 7 and Figure 8 the vibration device 500 described, and the second vibration device 500B can have a configuration substantially the same as the configuration of the vibration device 500 described above with reference to Figure 5 and Figure 6 the vibration device 500 described. However, aspects of the present disclosure are not limited thereto. According to another aspect of the present disclosure, the first vibration device 500A can have a configuration substantially the same as the configuration of the vibration device 500 described above with reference to Figure 5 and Figure 6 the vibration device 500 described, and the second vibration device 500B can have a configuration substantially the same as the configuration of the vibration device 500 described above with reference to Figure 7 and Figure 8 the vibration device 500 described.

[0208] Referring to Figure 5 , Figure 7 and Figure 11 , the plurality of vibration devices 500A and 500B can include different numbers of vibration transmission members 530 and vibration generating members 510. For example, the first vibration device 500A and the second vibration device 500B can include different numbers of vibration transmission members 530 and vibration generating members 510. For example, the first vibration device 500A can include four vibration transmission members 530 and four vibration generating members 510. For example, the second vibration device 500B can include three vibration transmission members 530 and three vibration generating members 510.

[0209] Multiple vibration devices 500A and 500B may include different numbers of connection parts 700. For example, the first vibration device 500A and the second vibration device 500B may include different numbers of connection parts 700. For example, the first vibration device 500A may include three connection parts 700. For example, the second vibration device 500B may include two connection parts 700. For example, the connection parts 700 may not be arranged between the multiple vibration devices 500A and 500B. For example, the connection parts 700 may not be arranged between the first vibration device 500A and the second vibration device 500B. For example, a display device according to another aspect of the present disclosure may achieve 98% or higher vibration in a vibration effective area of 0.2 μm. Therefore, a display device according to another aspect of the present disclosure may be applied to a large-area display device.

[0210] Figure 12 FIG. is a diagram showing a vibration generating component according to an aspect of the present disclosure. Figure 13 is according to an aspect of the present disclosure along Figure 12 The cross-sectional view taken along the line II-II' shown in. Figure 14 is according to an aspect of the present disclosure along Figure 12 The cross-sectional view taken along the line III-III' shown in. Figures 12 to 14 FIG. shows the above reference Figures 1 to 11 The vibration generating component of the vibration device described.

[0211] Reference Figures 12 to 14 , the vibration generating component 510 of the vibration device 500 according to an aspect of the present disclosure may include a vibration component 511.

[0212] The vibration component 511 may be configured to vibrate based on a driving signal through the piezoelectric effect. The vibration component 511 may include at least one or more of a piezoelectric inorganic material and a piezoelectric organic material. For example, the vibration component 511 may be a piezoelectric device, a piezoelectric device component, a piezoelectric device layer, a piezoelectric structure, a piezoelectric vibration component, or a piezoelectric vibration layer, etc., but the aspects of the present disclosure are not limited thereto.

[0213] The vibration component 511 according to an aspect of the present disclosure may include a vibration layer 511a, a first electrode layer 511b, and a second electrode layer 511c.

[0214] The vibration layer 511a may include a piezoelectric material or an electroactive material that generates a piezoelectric effect. For example, a piezoelectric material may have such properties that when pressure or a torsional phenomenon is applied to a crystal structure by an external force, a potential difference appears due to dielectric polarization caused by a change in the relative positions of positive (+) and negative (-) ions, and vibration is generated by an electric field based on a reverse voltage applied thereto. For example, the vibration layer 511a may be a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a piezoelectric composite layer, a piezoelectric composite, or a piezoelectric ceramic composite, etc., but aspects of the present disclosure are not limited thereto.

[0215] The vibration layer 511a may be configured as a ceramic-based material for achieving relatively strong vibration, or may be configured as a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure may have a piezoelectric effect and / or an inverse piezoelectric effect, and may be a plate-shaped structure with an orientation.

[0216] The piezoelectric ceramic may be configured as a single-crystal ceramic having a crystal structure, or may be configured as a ceramic material having a polycrystalline structure or a polycrystalline ceramic. The piezoelectric material of the single-crystal ceramic may include α-AlPO4, α-SiO2, LiNbO3, Tb2(MoO4)3, Li2B4O7, or ZnO, but aspects of the present disclosure are not limited thereto. The piezoelectric material of the polycrystalline ceramic may include a lead zirconate titanate (PZT)-based material, which includes lead (Pb), zirconium (Zr), and titanium (Ti), or the piezoelectric material of the polycrystalline ceramic may include a lead zirconate niobate nickelate (PZNN)-based material, which includes lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but aspects of the present disclosure are not limited thereto. For example, the vibration layer 511a may include at least one or more of calcium titanate (CaTiO3), barium titanate (BaTiO3), and strontium titanate (SrTiO3) without lead (Pb), but aspects of the present disclosure are not limited thereto.

[0217] The first electrode layer 511b may be disposed at the first surface (or upper surface or front surface) 511s1 of the vibration layer 511a. The first electrode layer 511b may have the same size as the vibration layer 511a, or may have a size smaller than that of the vibration layer 511a.

[0218] The second electrode layer 511c may be disposed at the second surface (or lower surface or rear surface) 511s2 of the vibration layer 511a that is opposite to or different from the first surface 511s1. The second electrode layer 511c may have the same size as the vibration layer 511a, or may have a size smaller than that of the vibration layer 511a. For example, the second electrode layer 511c may have the same shape as the vibration layer 511a, but aspects of the present disclosure are not limited thereto.

[0219] According to one aspect of the present disclosure, in order to prevent an electrical short circuit between the first electrode layer 511b and the second electrode layer 511c, each of the first electrode layer 511b and the second electrode layer 511c may be formed at a portion of the vibration layer 511a other than the peripheral portion. For example, the first electrode layer 511b may be formed on the entire first surface 511s1 of the vibration layer 511a other than the peripheral portion. For example, the second electrode layer 511c may be formed on the entire second surface 511s2 of the vibration layer 511a other than the peripheral portion. For example, the distance between the lateral surface (or sidewall or side surface) of each of the first electrode layer 511b and the second electrode layer 511c and the lateral surface (or sidewall or side surface) of the vibration layer 511a may be at least 0.5 mm or greater. For example, the distance between the lateral surface of each of the first electrode layer 511b and the second electrode layer 511c and the lateral surface of the vibration layer 511a may be at least 1 mm or greater, but aspects of the present disclosure are not limited thereto.

[0220] One or more of the first electrode layer 511b and the second electrode layer 511c according to one aspect of the present disclosure may be formed of a transparent conductive material, a translucent conductive material, or an opaque conductive material. For example, the transparent conductive material or the translucent conductive material may include indium tin oxide (ITO) or indium zinc oxide (IZO), but aspects of the present disclosure are not limited thereto. The opaque conductive material may include gold (Au), silver (Ag), platinum (Pt), palladium (Pd), molybdenum (Mo), magnesium (Mg), carbon, or silver (Ag) (including frit), etc. or an alloy thereof, but aspects of the present disclosure are not limited thereto. For example, in order to enhance the electrical characteristics and / or vibration characteristics of the vibration layer 511a, each of the first electrode layer 511b and the second electrode layer 511c may include silver (Ag) having a low resistivity. For example, the carbon may be carbon black, Ketjen black, carbon nanotubes, and carbon materials including graphite, but aspects of the present disclosure are not limited thereto.

[0221] The vibration layer 511a may be polarized (or polarized) by applying a specific voltage to the first electrode layer 511b and the second electrode layer 511c in a specific temperature environment or a temperature environment that can be changed from a high temperature to room temperature, but aspects of the present disclosure are not limited thereto. For example, the polarization direction (or polarization direction) formed in the vibration layer 511a may be formed or aligned (or arranged) from the first electrode layer 511b to the second electrode layer 511c, but is not limited thereto, and the polarization direction (or polarization direction) formed in the vibration layer 511a may be formed or aligned (or arranged) from the second electrode layer 511c to the first electrode layer 511b.

[0222] The vibration layer 511a can contract and / or expand alternately and repeatedly based on the inverse piezoelectric effect according to a driving signal externally applied to the first electrode layer 511b and the second electrode layer 511c to perform vibration. For example, the vibration layer 511a can vibrate in the vertical direction (or thickness direction) and in the planar direction by a signal applied to the first electrode layer 511b and the second electrode layer 511c. The vibration layer 511a can be displaced (or vibrated or driven) by contraction and / or expansion in the planar direction, thereby improving the sound characteristics and / or sound pressure level characteristics of the vibration device.

[0223] The vibration generating component 510 of the vibration device 500 according to an aspect of the present disclosure may further include a first covering member 513 and a second covering member 515.

[0224] The first covering member 513 may be disposed at the first surface of the vibration member 511. For example, the first covering member 513 may be configured to cover the first electrode layer 511b of the vibration member 511. For example, the first covering member 513 may be configured to have a larger size than the vibration member 511. The first covering member 513 may be configured to protect the first surface of the vibration member 511 and the first electrode layer 511b.

[0225] The second covering member 515 may be disposed at the second surface of the vibration member 511. For example, the second covering member 515 may be configured to cover the second electrode layer 511c of the vibration member 511. For example, the second covering member 515 may be configured to have a larger size than the vibration member 511 and may be configured to have the same size as the first covering member 513. The second covering member 515 may be configured to protect the second surface of the vibration member 511 and the second electrode layer 511c.

[0226] Each of the first covering member 513 and the second covering member 515 according to an aspect of the present disclosure may include the same material or different materials. For example, each of the first covering member 513 and the second covering member 515 may be a polyimide film or a polyethylene terephthalate film, but aspects of the present disclosure are not limited thereto.

[0227] The first covering member 513 may be connected or coupled to the first surface of the vibration member 511 or the first electrode layer 511b through a first adhesive layer 517. For example, the first covering member 513 may be connected or coupled to the first surface of the vibration member 511 or the first electrode layer 511b through the first adhesive layer 517 by a film lamination process.

[0228] The second covering member 515 may be connected or coupled to the second surface of the vibration member 511 or the second electrode layer 511c through the second adhesive layer 519. For example, the second covering member 515 may be connected or coupled to the second surface of the vibration member 511 or the second electrode layer 511c through the second adhesive layer 519 by a film lamination process.

[0229] Each of the first adhesive layer 517 and the second adhesive layer 519 according to an aspect of the present disclosure may include an electrically insulating material having adhesiveness and capable of compression and decompression. For example, each of the first adhesive layer 517 and the second adhesive layer 519 may include an epoxy resin, an acrylic resin, a silicone resin, or a urethane resin, but aspects of the present disclosure are not limited thereto.

[0230] The first adhesive layer 517 and the second adhesive layer 519 may be disposed between the first covering member 513 and the second covering member 515 to surround the vibration member 511. For example, one or more of the first adhesive layer 517 and the second adhesive layer 519 may be configured to surround the vibration member 511.

[0231] As Figure 12 shown, either the first covering member 513 or the second covering member 515 may be connected to the vibration transmission member 530 through the adhesive member 560.

[0232] The vibration generating member 510 of the vibration device 500 according to an aspect of the present disclosure may further include a signal supply member 550.

[0233] The signal supply member 550 may be configured to supply a driving signal supplied from the driving circuit component to the vibration generating member 510 or the vibration member 511. The signal supply member 550 may be configured to be electrically connected to the vibration member 511 on one side of the vibration device 500 or the vibration generating member 510. The signal supply member 550 may be configured to be electrically connected to the first electrode layer 511b and the second electrode layer 511c of the vibration member 511.

[0234] A part of the signal supply member 550 may be received (or inserted) between the first cover member 513 and the second cover member 515. An end portion (or distal end portion) of the signal supply member 550 may be disposed or inserted (or received) between a peripheral portion of the first cover member 513 and a peripheral portion of the second cover member 515. A peripheral portion of the first cover member 513 and a peripheral portion of the second cover member 515 may receive or vertically cover an end portion (or distal end portion or one side) of the signal supply member 550. Accordingly, the signal supply member 550 may be integrated into the vibration generating member 510. For example, the signal supply member 550 may be configured as a signal cable, a flexible cable, a flexible printed circuit cable, a flexible flat cable, a single-sided flexible printed circuit, a single-sided flexible printed circuit board, a flexible multi-layer printed circuit, or a flexible multi-layer printed circuit board, but aspects of the present disclosure are not limited thereto.

[0235] The signal supply member 550 according to an aspect of the present disclosure may include a base member 551 and a plurality of signal lines 553a and 553b. For example, the signal supply member 550 may include a base member 551, a first signal line 553a, and a second signal line 553b. For example, the base member 551 may be a cable base member, but aspects of the present disclosure are not limited thereto.

[0236] The base member 551 may include a transparent or opaque plastic material, but aspects of the present disclosure are not limited thereto. The base member 551 may have a specific width along a first direction X and may extend longer along a second direction Y intersecting the first direction X.

[0237] The first signal line 553a and the second signal line 553b may be disposed at a first surface of the base member 551 parallel to the second direction Y and may be spaced apart from each other or electrically separated from each other in the first direction X. The first signal line 553a and the second signal line 553b may be disposed parallel to each other at the first surface of the base member 551. For example, the first signal line 553a and the second signal line 553b may be implemented in a wire shape by patterning a metal layer (or conductive layer) formed or deposited at the first surface of the base member 551.

[0238] End portions (or distal end portions or one side or a part) of the first signal line 553a and the second signal line 553b may be separated from each other and thus may be bent or folded individually.

[0239] The end portion (or distal end portion or one side or a portion) of the first signal line 553a can be electrically connected to the first electrode layer 511b of the vibrating member 511. For example, the end portion of the first signal line 553a can be electrically connected to at least a portion of the first electrode layer 511b of the vibrating member 511 at a peripheral portion of the first covering member 513. For example, the end portion (or distal end portion or one side) of the first signal line 553a can be electrically connected and directly connected to the first electrode layer 511b of the vibrating member 511. For example, the end portion (or distal end portion or one side or a portion) of the first signal line 553a can be directly connected to or directly in contact with the first electrode layer 511b of the vibrating member 511. For example, the end portion of the first signal line 553a can be electrically connected to the first electrode layer 511b through a conductive double-sided tape. Accordingly, the first signal line 553a can transmit the first drive signal supplied from the drive circuit component to the first electrode layer 511b of the vibrating member 511.

[0240] The end portion (or distal end portion or one side or a portion) of the second signal line 553b can be electrically connected to the second electrode layer 511c of the vibrating member 511. For example, the end portion of the second signal line 553b can be electrically connected to at least a portion of the second electrode layer 511c of the vibrating member 511 at a peripheral portion of the second covering member 515. For example, the end portion of the second signal line 553b can be electrically connected and directly connected to at least a portion of the second electrode layer 511c of the vibrating member 511. For example, the end portion of the second signal line 553b can be directly connected to or directly in contact with the second electrode layer 511c of the vibrating member 511. For example, the end portion of the second signal line 553b can be electrically connected to the second electrode layer 511c through a conductive double-sided tape. Accordingly, the second signal line 553b can transmit the second drive signal supplied from the drive circuit component to the second electrode layer 511c of the vibrating member 511.

[0241] The signal supply member 550 according to an aspect of the present disclosure can further include an insulating layer 555.

[0242] The insulating layer 555 can be disposed at the first surface of the base member 551 to cover each of the first signal line 553a and the second signal line 553b except for the end portion (or one side or a portion) of the signal supply member 550.

[0243] An end portion (or one side or one part) of the signal supply member 550 including an end portion (or one side or one part) of the base member 551 and an end portion (or one side or one part) 555a of the insulating layer 555 may be inserted (or accommodated) between the first cover member 513 and the second cover member 515, and may be fixed between the first cover member 513 and the second cover member 515 by the first adhesive layer 517 and the second adhesive layer 519. Accordingly, an end portion (or one side or one part) of the first signal line 553a may remain electrically connected to the first electrode layer 511b of the vibration member 511, and an end portion (or one side or one part) of the second signal line 553b may remain electrically connected to the second electrode layer 511c of the vibration member 511. In addition, an end portion (or one side or one part) of the signal supply member 550 may be inserted (or accommodated) and fixed between the vibration member 511 and the first cover member 513, and thus, contact defects (or poor connections) between the vibration generating member 510 and the signal supply member 550 caused by movement of the signal supply member 550 may be prevented.

[0244] In the signal supply member 550 according to an aspect of the present disclosure, each of an end portion (or one side or one part) of the base member 551 and an end portion (or one side or one part) 555a of the insulating layer 555 may be removed. For example, each of an end portion of the first signal line 553a and an end portion of the second signal line 553b may be exposed to the outside without being supported or covered by each of an end portion (or one side or one part) of the base member 551 and an end portion (or one side or one part) 555a of the insulating layer 555. For example, an end portion of each of the first signal line 553a and the second signal line 553b may protrude (or extend) from an end 551e of the base member 551 or an end 555e of the insulating layer 555 by a specific length. Accordingly, each of an end portion (or a distal end portion or one side or one part) of the first signal line 553a and the second signal line 553b may be bent (or folded) individually or independently.

[0245] An end portion (or one side or one part) of the first signal line 553a not supported by an end portion (or one side or one part) of the base member 551 and an end portion 555a of the insulating layer 555 may be directly connected to or directly in contact with the first electrode layer 511b of the vibration member 511. An end of the second signal line 553b not supported by an end portion (or one side or one part) of the base member 551 and an end portion (or one side or one part) 555a of the insulating layer 555 may be directly connected to or directly in contact with the second electrode layer 511c of the vibration member 511.

[0246] According to an aspect of the present disclosure, a part of the signal supply member 550 or a part of the base member 551 may be disposed or inserted (or accommodated) between the first covering member 513 and the second covering member 515, and thus, the signal supply member 550 may be integrated into the vibration generating member 510 (or configured to be integral with the vibration generating member 510). Accordingly, the vibration generating member 510 and the signal supply member 550 may be configured as one member (or one assembly), and thus, a unified physical and chemical effect may be obtained.

[0247] According to an aspect of the present disclosure, the first signal line 553a and the second signal line 553b of the signal supply member 550 may be integrated into the vibration generating member 510 (or configured to be integral with the vibration generating member 510), and thus, a soldering process for electrical connection between the vibration generating member 510 and the signal supply member 550 may not be required. Accordingly, the manufacturing process and structure of the vibration generating member 510 may be simplified, and thus, a dangerous process may be reduced or prevented.

[0248] Figure 15 It is a diagram showing a vibration layer according to another aspect of the present disclosure. Figure 15 It shows the above with reference to Figures 12 to 14 Another aspect of the vibration layer according to another aspect of the present disclosure described above.

[0249] With reference to Figure 13 and Figure 15 , according to another aspect of the present disclosure, the vibration layer 511a may include a plurality of first portions 511a1 and a plurality of second portions 511a2. For example, the plurality of first portions 511a1 and the plurality of second portions 511a2 may be alternately and repeatedly disposed along the first direction X (or the second direction Y).

[0250] Each of the plurality of first portions 511a1 may include an inorganic material having a piezoelectric effect (or piezoelectric property). For example, each of the plurality of first portions 511a1 may include at least one or more of a piezoelectric inorganic material and a piezoelectric organic material. For example, each of the plurality of first portions 511a1 may be an inorganic portion, an inorganic material portion, a piezoelectric portion, a piezoelectric material portion, or an electroactive portion, but aspects of the present disclosure are not limited thereto.

[0251] According to an aspect of the present disclosure, each of the plurality of first portions 511a1 may have a first width W1 parallel to the first direction X (second direction Y), and may extend along a second direction Y (first direction X) intersecting the first direction X (second direction Y). Each of the plurality of first portions 511a1 may include the same as that referred to above with reference to Figures 12 to 14The material of the described vibrating layer 511a is substantially the same, and thus its repeated description is omitted.

[0252] Each of the plurality of second portions 511a2 may be disposed between the plurality of first portions 511a1. For example, each of the plurality of first portions 511a1 may be disposed between two adjacent second portions 511a2 of the plurality of second portions 511a2. Each of the plurality of second portions 511a2 may have a second width W2 parallel to the first direction X (or the second direction Y) and may extend along the second direction Y (or the first direction X). 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 portion 511a1 and the second portion 511a2 may include a wire shape or a strip shape having the same size or different sizes, but is not limited thereto.

[0253] Each of the plurality of second portions 511a2 may be configured to fill the gap between two adjacent first portions 511a1 of the plurality of first portions 511a1. Each of the plurality of second portions 511a2 may be configured to fill the gap between two adjacent first portions 511a1 of the plurality of first portions 511a1, and thus, may be connected to or attached to the lateral surface of the adjacent first portion 511a1. According to an aspect of the present disclosure, each of the plurality of first portions 511a1 and the plurality of second portions 511a2 may be disposed (or arranged) parallel to each other at the same plane (or the same layer). Therefore, the vibrating layer 511a may be extended to a desired size or length by the lateral coupling (or connection) of the first portion 511a1 and the second portion 511a2.

[0254] According to an aspect of the present disclosure, each of the plurality of second portions 511a2 may absorb the impact applied to the first portion 511a1, and thus may enhance the durability of the first portion 511a1 and provide flexibility to the vibrating layer 511a. Each of the plurality of second portions 511a2 may include an organic material having a stretchable property. For example, each of the plurality of second portions 511a2 may include one or more of an epoxy-based polymer, an acrylic-based polymer, and a silicone-based polymer, but the aspects of the present disclosure are not limited thereto. For example, each of the plurality of second portions 511a2 may be an organic portion, an organic material portion, an adhesive portion, a stretching portion, a bending portion, a damping portion, an elastic portion, or a stretchable portion, but the aspects of the present disclosure are not limited thereto.

[0255] The first surface of each of the plurality of first portions 511a1 and the plurality of second portions 511a2 can be commonly connected to the first electrode layer 511b. The second surface of each of the plurality of first portions 511a1 and the plurality of second portions 511a2 can be commonly connected to the second electrode layer 511c.

[0256] The plurality of first portions 511a1 and the plurality of second portions 511a2 can be disposed in the same plane (or connected to the same plane), and thus, the vibration layer 511a according to another aspect of the present disclosure can implement a single thin film. Therefore, the vibration member 511 or the vibration generating member 510 including the vibration layer 511a according to another aspect of the present disclosure can vibrate in the vertical (or up and down) direction by the first portion 511a1 having vibration characteristics and can be bent in a bent shape by the second portion 511a2 having flexibility.

[0257] Figure 16 It is a diagram showing a vibration layer according to another aspect of the present disclosure. Figure 16 It shows the above reference Figures 12 to 14 Another aspect of the vibration layer according to another aspect of the present disclosure described above.

[0258] Reference Figure 13 and Figure 16 According to another aspect of the present disclosure, the vibration layer 511a can include a plurality of first portions 511a3 and a second portion 511a4 disposed between the plurality of first portions 511a3.

[0259] Each of the plurality of first portions 511a3 can be arranged to be spaced apart from each other in each of the first direction X and the second direction Y. For example, each of the plurality of first portions 511a3 can have a hexahedron shape of the same size and can be arranged in a lattice shape, but aspects of the present disclosure are not limited thereto. For example, each of the plurality of first portions 511a3 can include a circular plate, an elliptical plate, or a polygonal plate having the same size as each other, but aspects of the present disclosure are not limited thereto. For example, each of the plurality of first portions 511a3 can include a circular plate, an elliptical plate, or a polygonal plate having different sizes from each other.

[0260] Each of the plurality of first portions 511a3 can include substantially the same material as the first portion 511a1 described above with reference to Figure 15 Therefore, its repeated description is omitted.

[0261] The second part 511a4 can be disposed between a plurality of first parts 511a3 along each of a first direction X and a second direction Y. The second part 511a4 can be configured to fill a gap between two adjacent first parts 511a3 or to partially or completely surround each of the plurality of first parts 511a3, and thus, the second part 511a4 can be connected to or attached to an adjacent first part 511a3. The second part 511a4 can be substantially the same as the second part 511a2 described above with reference to Figure 15 and thus, a repeated description thereof is omitted.

[0262] A first surface of each of the plurality of first parts 511a3 and the second part 511a4 can be commonly connected to a first electrode layer 511b. A second surface of each of the plurality of first parts 511a3 and the second part 511a4 can be commonly connected to a second electrode layer 511c.

[0263] The plurality of first parts 511a3 and the second part 511a4 can be disposed in the same plane (or connected to the same plane), and thus, the vibration layer 511a according to another aspect of the present disclosure can have a single thin film type. Therefore, the vibration member 511 or the vibration generating member 510 including the vibration layer 511a according to another aspect of the present disclosure can vibrate in a vertical (or up and down) direction by the first part 511a3 having vibration characteristics, and can be bent in a bent shape by the second part 511a4 having flexibility.

[0264] Figure 17 is a diagram showing a vibration generating member according to another aspect of the present disclosure. Figure 17 shows the vibration generating member of the vibration device and the acoustic device described above with reference to Figures 1 to 11 The vibration generating member 510 of the vibration device 500 according to another aspect of the present disclosure can include two or more vibration generating members 510-1 and 510-2 with reference to

[0265] Reference Figure 12 and Figure 17 , for example, the vibration generating member 510 can include a first vibration generating member 510-1 and a second vibration generating member 510-2.

[0266] The first vibration generating component 510-1 and the second vibration generating component 510-2 can overlap or stack with each other to shift (or drive or vibrate) in the same direction, so as to maximize or increase the amplitude shift of the vibration device 500 and / or the amplitude shift of the display member 100. For example, the first vibration generating component 510-1 and the second vibration generating component 510-2 can have substantially the same size, but aspects of the present disclosure are not limited thereto. For example, the first vibration generating component 510-1 and the second vibration generating component 510-2 can have substantially the same size within the error range of the manufacturing process. Therefore, the first vibration generating component 510-1 and the second vibration generating component 510-2 can maximize or increase the amplitude shift of the vibration device 500 and / or the amplitude shift of the display member 100.

[0267] According to an aspect of the present disclosure, either the first vibration generating component 510-1 or the second vibration generating component 510-2 can be connected or coupled to the vibration transmission component 530 through the connection member 560. For example, the first vibration generating component 510-1 can be connected or coupled to the vibration transmission component 530 through the connection member 560.

[0268] Each of the first vibration generating component 510-1 and the second vibration generating component 510-2 can be the same as or substantially the same as the vibration generating component 510 described above with reference to Figures 12 to 16 the description, and thus, the repeated description thereof is omitted.

[0269] The vibration generating component 510 of the vibration device 500 according to another aspect of the present disclosure may further include an intermediate bonding member 510M.

[0270] The intermediate bonding member 510M can be disposed or connected between the first vibration generating component 510-1 and the second vibration generating component 510-2. For example, the intermediate bonding member 510M can be disposed or connected between the second covering member 515 of the first vibration generating component 510-1 and the first covering member 513 of the second vibration generating component 510-2.

[0271] According to another aspect of the present disclosure, the intermediate bonding member 510M may be configured as a material including an adhesive layer that is good in terms of adhesion or bonding force with respect to each of the first vibration generating member 510-1 and the second vibration generating member 510-2. For example, the intermediate bonding member 510M may include a double-sided adhesive, a foam pad, a double-sided tape, a double-sided foam tape, a double-sided foam pad, or an adhesive, etc., but aspects of the present disclosure are not limited thereto. For example, the adhesive layer of the intermediate bonding member 510M may include epoxy resin, acrylic, silicone, or urethane, but aspects of the present disclosure are not limited thereto. For example, the adhesive layer of the intermediate bonding member 510M may include a urethane-based material (or substance) having relatively extensible characteristics. Therefore, vibration losses caused by displacement interference between the first vibration generating member 510-1 and the second vibration generating member 510-2 may be minimized or reduced, or each of the first vibration generating member 510-1 and the second vibration generating member 510-2 may freely displace (or vibrate or drive).

[0272] According to another aspect of the present disclosure, the vibration generating member 510 of the vibration device 500 may include a first vibration generating member 510-1 and a second vibration generating member 510-2, which are stacked to vibrate (or displace or drive) in the same direction, and thus, the amount of displacement and / or amplitude displacement may be maximized or increased. Therefore, the amount of displacement (or bending force) and / or amplitude displacement of the display member 100 may be maximized or increased.

[0273] Figure 18 FIG. is a diagram showing a vehicle device according to an aspect of the present disclosure. Figure 18 FIG. shows an aspect in which the display device described above with reference to Figures 1 to 17 is applied to a vehicle device (or a vehicle) according to an aspect of the present disclosure.

[0274] Reference Figure 18 , a vehicle device according to an aspect of the present disclosure may include a dashboard DB, an instrument panel module IPM, and an infotainment module ITM.

[0275] The dashboard DB may include a first region facing the driver's seat DS, a second region facing the passenger's seat PS, and a third region located between the first region and the second region. The dashboard DB may include a center trim area located between the driver's seat DS and the passenger's seat PS.

[0276] The instrument panel module IPM may include a first display DIS1 disposed at a first area of the instrument panel DB. The first display DIS1 may be an instrument panel display. For example, the first display DIS1 may be a liquid crystal display panel, an organic light emitting display panel, an inorganic light emitting display panel, a quantum dot light emitting display panel, a micro light emitting diode display panel, or a mini light emitting diode display panel, but aspects of the present disclosure are not limited thereto.

[0277] The first display DIS1 may provide various information to the driver, such as driving-related information, such as the speed (or rate) of the vehicle, the fuel level, and the revolutions per minute (RPM).

[0278] The first display DIS1 may include the display device described above with reference to Figures 1 to 17 Accordingly, a repetitive description thereof is omitted. Thus, the first display DIS1 may be configured to display an image corresponding to the information provided from the host system on the display panel. For example, one or more vibration devices 500 may be disposed on the rear surface of the first display DIS1. In addition, when a touch by the driver (or user) is applied to the vibration device, the first display DIS1 may provide ultrasonic vibration or ultrasonic haptics to the user based on the driving (or vibration) of the vibration device. In addition, when the first display DIS1 includes the display device described above with reference to Figures 1 to 17 Accordingly, the first display DIS1 may directly output the sound generated by the display member to the driver, and the display member vibrates based on the driving (or vibration) of the acoustic device based on the sound signal supplied from the audio system and / or the multimedia system.

[0279] The infotainment ITM (or infotainment system) may include one or more infotainment displays at one or more of the instrument panel DB, the driver seat DS, and the passenger seat PS. For example, the infotainment ITM may include one or more second displays configured at one or more of the instrument panel DB, the driver seat DS, and the passenger seat PS. For example, the infotainment ITM may include second displays DIS2 to fifth displays DIS5.

[0280] The second display DIS2 may be set or configured at a third area of the instrument panel DB. For example, the second display DIS2 may have a length extending toward the second area PA of the instrument panel DB. For example, the second display DIS2 may be a liquid crystal display panel, an organic light emitting display panel, an inorganic light emitting display panel, a quantum dot light emitting display panel, a micro light emitting diode display panel, or a mini light emitting diode display panel, but aspects of the present disclosure are not limited thereto.

[0281] The second display DIS2 can be separately connected to a navigation system and a convenience system including an audio system, an air conditioning system, a multimedia system, etc., and can display various information provided from the convenience system and the navigation system.

[0282] The second display DIS2 can include the display device described above with reference to Figures 1 to 17 the description, and thus, its repeated description is omitted. Therefore, the second display DIS2 can be configured to display various information provided from the convenience system and the navigation system on the display panel. In addition, the second display DIS2 can wirelessly communicate with a wireless communication device of a passenger sitting on the passenger seat to transmit or receive image information or sound information, and can be configured to display the received image information on the display panel.

[0283] For example, one or more vibration devices 500 can be configured at the rear surface of the second display DIS2. When the driver (or user) touches the vibration device, the second display DIS2 can provide ultrasonic vibration or ultrasonic haptics to the user based on the drive (or vibration) of the vibration device.

[0284] According to another aspect of the present disclosure, the second display DIS2 and the first display DIS1 can be configured to be one display, and can be disposed at the first area and the third area of the instrument panel DB, or can be disposed to span from the first area to the third area of the instrument panel DB.

[0285] The third display DIS3 can be disposed at the center trim area below the third area of the instrument panel DB. For example, the third display DIS3 can be disposed below the second display DIS2. The third display DIS3 can be disposed at the center trim area of the area located between the driver's seat DS and the passenger's seat PS. For example, the third display DIS3 can be a liquid crystal display panel, an organic light emitting display panel, an inorganic light emitting display panel, a quantum dot light emitting display panel, a micro light emitting diode display panel, or a mini light emitting diode display panel, but aspects of the present disclosure are not limited thereto.

[0286] The third display (or center trim display) DIS3 can be configured to display various information provided from the convenience system. The third display DIS3 and the second display DIS2 can share various information displayed on the display panel.

[0287] The third display DIS3 can include the above reference Figures 1 to 17The described display device, and thus, its repeated description is omitted. Accordingly, the third display DIS3 may be configured to display various information provided from the convenience system on the display panel. For example, one or more vibration devices 500 may be configured at the rear surface of the third display DIS3. In addition, when a touch by a driver (or user) is applied to the vibration device, the third display DIS3 may provide ultrasonic vibration or ultrasonic haptics to the user based on the driving (or vibration) of the vibration device.

[0288] The fourth display DIS4 may be provided or embedded in the headrest of the driver's seat DS. The fifth display DIS5 may be provided or embedded in the headrest of the passenger seat PS. For example, the fourth display DIS4 may be a liquid crystal display panel, an organic light emitting display panel, an inorganic light emitting display panel, a quantum dot light emitting display panel, a micro light emitting diode display panel, or a mini light emitting diode display panel, but aspects of the present disclosure are not limited thereto. For example, the fifth display DIS5 may be a liquid crystal display panel, an organic light emitting display panel, an inorganic light emitting display panel, a quantum dot light emitting display panel, a micro light emitting diode display panel, or a mini light emitting diode display panel, but aspects of the present disclosure are not limited thereto.

[0289] The fourth display DIS4 and the fifth display DIS5 may include the display device described above with reference to Figures 1 to 17 and thus, its repeated description is omitted.

[0290] Each of the fourth display DIS4 and the fifth display DIS5 may share the function of the second display DIS2. In addition, each of the fourth display DIS4 and the fifth display DIS5 may wirelessly communicate with a wireless communication device of a passenger to transmit or receive image information or sound information, and may display the received image information on the display panel.

[0291] For example, one or more vibration devices 500 may be configured at the rear surface of each of the fourth display DIS4 and the fifth display DIS5. When a touch by a driver (or user) is applied to the vibration device, each of the fourth display DIS4 and the fifth display DIS5 may provide ultrasonic vibration and / or ultrasonic haptics to the user based on the driving (or vibration) of the vibration device.

[0292] A vehicle device according to an aspect of the present disclosure can provide ultrasonic vibration or ultrasonic haptics to a user when a touch is applied to each of the first display DIS1 to the fifth display DIS5, can use each of the first display DIS1 to the fifth display DIS5 as a speaker for sound output, and can provide 2-channel stereo sound or more-channel stereo sound to a driver and / or a passenger by using the sound generated (or output) from each of the first display DIS1 to the fifth display DIS5.

[0293] Figure 19A and Figure 19B is a diagram showing the vertical displacement of a vibration device according to an aspect and an experimental example of the present disclosure.

[0294] The inventors have measured the vibration effective area according to the experimental example and the vibration effective area according to an aspect by using simulation in order to examine the vertical displacement of the vibration device according to aspects of the present disclosure. For example, the vertical displacement can be the amount of change in the vertical vibration of the vibration device. For example, when the vibration intensity of the vibration device is large, the vertical displacement can be large, and when the vibration intensity of the vibration device is small, the vertical displacement can be small. For example, the area where vibration is generated in the vibration device may gradually increase as the vibration effective area of the vibration device increases. In the experimental example, a sample has been prepared such that the connecting portion is not configured in the vibration device (shown by a dashed line) described above with reference Figure 2 described. In one aspect, a sample equal to the vibration device (shown by a dashed line) described above with reference Figure 2 described has been prepared. In the experimental example and one aspect, the size of each of the plurality of vibration transmission members has been identically configured to a width of 30 mm and a height of 30 mm, the size of each of the plurality of vibration generation members has been identically configured to a width of 30 mm and a height of 30 mm, and the size of the vibration member has been identically configured to a width of 100 mm and a height of 100 mm. In one aspect, the width of the connecting portion has been prepared to be 10 mm, and the length of the connecting portion has been prepared to be 30 mm. The size of the vibration transmission member and the width and length of the connecting portion do not limit the details of the present disclosure. Figure 19A shows the simulation result according to the experimental example, and Figure 19B shows the simulation result according to one aspect. In Figure 19A and Figure 19B , the vertical displacement (or the intensity of vibration) of the vibration device appears closer to red as it increases, and the vertical displacement (or the intensity of vibration) of the vibration device appears closer to blue as it decreases.

[0295] Reference Figure 19A and Figure 19B, compared with the experimental examples, it can be seen that the effective vibration area of the vibration device configured with the connection part according to one aspect of the present disclosure has increased by 50% or more. The effective vibration area may be the area of the part shown in yellow-green in the figure. Accordingly, in one aspect of the present disclosure, due to the configuration of the connection part, it can be seen that the effective vibration area of the vibration device increases and the vertical displacement is enhanced.

[0296] Therefore, the vibration device according to one aspect of the present disclosure can vibrate the display part by using the connection part that connects a plurality of vibration transmission members to each other, and thus can provide ultrasonic vibration and / or ultrasonic haptics to the user more effectively.

[0297] Figure 20A and Figure 20B are diagrams showing the relative impedance with respect to the width and length of the connection part according to one aspect of the present disclosure. Figure 20A shows the result obtained by measuring the relative impedance with respect to the length of 30 mm of the connection part, and Figure 20B shows the result obtained by measuring the relative impedance with respect to the width of 10 mm of the connection part. The impedance may be the resistance of the vibration device that drives the ultrasonic wave. The vibration displacement of the vibration device may increase as the resistance decreases. Figure 20A and Figure 20B show the relative amplitude with respect to the relative impedance, and the impedance as a standard is "-", and thus in Figure 20A and Figure 20B is represented by "+".

[0298] Referring to Figure 20A , when the length of the connection part according to one aspect of the present disclosure is 30 mm, the connection part has an impedance value of 1.0 (shown by a circle in the drawing). According to one aspect of the present disclosure, regarding the case where the length of the connection part is 30 mm, when the length of the connection part is reduced to 20 mm, 10 mm, and 5 mm, the relative impedance value deviates from 1.0. Therefore, it can be seen that the relative impedance value increases as the length of the connection part decreases. Therefore, since the relative impedance value increases as the length of the connection part decreases, it can be seen that the resistance increases.

[0299] According to one aspect of the present disclosure, regarding the case where the length of the connection part is 30 mm, even when the length of the connection part is increased to 60 mm, the relative impedance value approaches 1.0, and thus it can be seen that the change in the relative impedance value is small. Therefore, since the relative impedance value approaches 1.0 even when the length of the connection part is increased, it can be seen that the resistance does not change greatly. Therefore, the length of the connection part according to one aspect of the present disclosure can be set to 30 mm or more.

[0300] Reference Figure 20B When the width of the connection portion according to one aspect of the present disclosure is 10 mm, the connection portion has an impedance value of 1.0 (shown by the circles in the drawings). Regarding the case where the width of the connection portion is 10 mm, when the width of the connection portion is increased to 20 mm and 30 mm, the relative impedance value deviates from 1.0. Therefore, it can be seen that the relative impedance value increases as the width of the connection portion increases. Therefore, since the relative impedance value increases as the width of the connection portion increases, it can be seen that the resistance increases.

[0301] According to one aspect of the present disclosure, regarding the case where the width of the connection portion is 10 mm, even when the width of the connection portion is reduced to 5 mm, the relative impedance value is close to 1.0. Therefore, it can be seen that the change in the relative impedance value is small. Therefore, since the relative impedance value is close to 1.0 even when the width of the connection portion is reduced, it can be seen that the resistance does not change greatly. Therefore, the width of the connection portion according to one aspect of the present disclosure can be set to 10 mm or less.

[0302] A vibration device, a display device including the vibration device, and a vehicle device including the vibration device according to one or more example aspects of the present disclosure are described below.

[0303] A vibration device according to one or more aspects of the present disclosure may include a plurality of vibration transmission members, a connection portion connected between the plurality of vibration transmission members, and a plurality of vibration generating members connected between two adjacent vibration transmission members among the plurality of vibration transmission members.

[0304] According to one or more aspects of the present disclosure, each of the plurality of vibration transmission members may be configured to change an in-plane vibration mode of the plurality of vibration generating members into an out-of-plane vibration mode.

[0305] According to one or more aspects of the present disclosure, the width and length of the connection portion may be smaller than the width and length of each of the plurality of vibration transmission members.

[0306] According to one or more aspects of the present disclosure, the width of the connection portion may be smaller than the length of the connection portion.

[0307] According to one or more aspects of the present disclosure, the length of the connection portion may be two times or more the width of the connection portion.

[0308] According to one or more aspects of the present disclosure, each of the plurality of vibration transmission members may include a base member and a vibration transmission member connected to the base member. The connection portion may be connected to the base member of each of two adjacent vibration transmission members.

[0309] According to one or more aspects of the present disclosure, the connecting portion may include the same material as that of the base member.

[0310] According to one or more aspects of the present disclosure, the vibration transmission member may include a first vibration transmission member disposed at one edge of the base member and a second vibration transmission member disposed at the other edge of the base member facing the first vibration transmission member.

[0311] According to one or more aspects of the present disclosure, each of the first vibration transmission member and the second vibration transmission member may protrude from the base member.

[0312] According to one or more aspects of the present disclosure, each of the first vibration transmission member and the second vibration transmission member may have a linear shape.

[0313] According to one or more aspects of the present disclosure, the vibration device may further include an adhesive member located between the vibration generating component and the base member.

[0314] According to one or more aspects of the present disclosure, the vibration generating component may include a first covering member, a second covering member, and a vibration component between the first covering member and the second covering member, and the vibration component includes a piezoelectric material.

[0315] According to one or more aspects of the present disclosure, the vibration generating component may further include a signal supply member electrically connected to the vibration component. A part of the signal supply member may be accommodated between the first covering member and the second covering member.

[0316] According to one or more aspects of the present disclosure, the vibration generating component may include a first vibration generating component, a second vibration generating component stacked on the first vibration generating component, and an intermediate member between the first vibration generating component and the second vibration generating component. One of the first vibration generating component and the second vibration generating component is connected to the vibration transmission component.

[0317] According to one or more aspects of the present disclosure, each of the first vibration generating component and the second vibration generating component may include a first covering member, a second covering member, and a vibration component between the first covering member and the second covering member, and the vibration component includes a piezoelectric material.

[0318] According to one or more aspects of the present disclosure, each of the first vibration generating component and the second vibration generating component may further include a signal supply member electrically connected to the vibration component. A part of the signal supply member may be accommodated between the first covering member and the second covering member.

[0319] A display device according to one or more aspects of the present disclosure may include: a display member configured to display an image; a vibration generating device including one or more vibration devices configured to vibrate the display member; and a connection member located between the display member and the vibration generating device. The one or more vibration devices may include a plurality of vibration transmission members, a connection portion connected between the plurality of vibration transmission members, and a plurality of vibration generating members connected between two adjacent vibration transmission members among the plurality of vibration transmission members.

[0320] According to one or more aspects of the present disclosure, the vibration generating device may include a plurality of vibration devices, and at least some of the plurality of vibration devices may include different numbers of vibration transmission members and vibration generating members.

[0321] According to one or more aspects of the present disclosure, the one or more vibration devices may vibrate the display member based on a driving signal to generate ultrasonic vibrations at the surface of the display member.

[0322] According to one or more aspects of the present disclosure, the one or more vibration devices may be connected to the rear surface of the display member with an air gap therebetween.

[0323] According to one or more aspects of the present disclosure, the display member may include a display panel and a touch panel connected to the display panel, and the display panel includes a plurality of pixels configured to display an image.

[0324] According to one or more aspects of the present disclosure, the display member may include a front member, a display panel located at the rear surface of the front member, and a touch panel located between the front member and the display panel, wherein the display panel includes a plurality of pixels configured to display an image.

[0325] A vehicle device according to one or more aspects of the present disclosure may include: a dashboard; a dashboard module in the dashboard, the dashboard module including a first display; a driver's seat; a front passenger seat; and an infotainment module in one or more of the dashboard, the driver's seat, and the front passenger seat, and the infotainment module includes one or more second displays. One or more of the first display and the one or more second displays include: a display member configured to display an image; one or more vibration generating devices configured to vibrate the display member; and a connection member located between the display member and the one or more vibration generating devices. The one or more vibration generating devices may include a plurality of vibration transmission members, a connection portion connected between the plurality of vibration transmission members, and a plurality of vibration generating members connected between two adjacent vibration transmission members among the plurality of vibration transmission members.

[0326] According to one or more aspects of the present disclosure, one or more vibration generating devices may vibrate a display member based on a driving signal to generate ultrasonic vibrations at the surface of the display member.

[0327] According to one or more aspects of the present disclosure, the driving signal may be an amplitude modulation signal of an ultrasonic signal using a low-frequency signal.

[0328] According to one or more aspects of the present disclosure, the display member may include a display panel and a touch panel connected to the display panel, wherein the display panel includes a plurality of pixels configured to display an image.

[0329] According to one or more aspects of the present disclosure, the display member may include a front member, a display panel at the rear surface of the front member, and a touch panel between the front member and the display panel, wherein the display panel includes a plurality of pixels configured to display an image.

[0330] The vibration device according to one or more exemplary aspects of the present disclosure may be applied to or included in a vibration generating device and / or a sound generating device provided in a device. The vibration device according to one or more exemplary aspects of the present disclosure and a device including the vibration device may be applied to or included in a mobile device, a video phone, a smart watch, a watch phone, a wearable device, a foldable device, a rollable device, a bendable device, a flexible device, a curved device, a sliding device, a variable device, an electronic notepad, an e-book, a portable multimedia player (PMP), a personal digital assistant (PDA), an MP3 player, a mobile medical device, a desktop personal computer (PC), a laptop PC, a netbook computer, a workstation, a navigation device, a car navigation device, a car display device, a car device, a theater device, a theater display device, a TV, a wallpaper display device, a sign device, a game console, a notebook computer, a monitor, a camera, a video camera, and household appliances, etc. In addition, the vibration device according to some exemplary aspects of the present disclosure may be applied to or included in an organic light-emitting lighting device or an inorganic light-emitting lighting device. When the vibration device according to one or more exemplary aspects of the present disclosure is applied to or included in a lighting device, the vibration device may serve as a lighting device and a speaker. Additionally, when the vibration device according to some exemplary aspects of the present disclosure is applied to or included in a mobile device or the like, the vibration device may be one or more of a speaker, a receiver, and a haptic device, but the aspects of the present disclosure are not limited thereto.

[0331] It will be apparent to those skilled in the art that various modifications and variations can be made in the present disclosure without departing from the scope of the present disclosure. Accordingly, the present disclosure is intended to cover modifications and variations of the present disclosure as long as they fall within the scope of the appended claims and their equivalents.

Claims

1. A vibration device, comprising: a plurality of vibration transmitting components; a connecting portion connected between the plurality of vibration transmitting components; as well as A plurality of vibration generating components are connected between two adjacent vibration transmitting components among the plurality of vibration transmitting components.

2. The vibration device according to claim 1, wherein Each of the plurality of vibration transferring components is configured to change an in-plane vibration mode of the plurality of vibration generating components to an out-of-plane vibration mode.

3. The vibration device according to claim 1, wherein The connection portion has a width and a length smaller than a width and a length of each of the plurality of vibration transfer members.

4. The vibration device according to claim 3, wherein: The width of the connecting portion is smaller than the length of the connecting portion.

5. The vibration device according to claim 3, wherein: The length of the connection portion is two or more times the width of the connection portion.

6. The vibration device according to claim 1, wherein Each of the plurality of vibration transmitting components comprises: a base member; and a vibration transmitting member connected to the base member, and wherein the connecting portion is connected to the base member of each of two adjacent vibration transmitting components.

7. The vibration device according to claim 6, wherein: The connection portion includes the same material as that of the base member.

8. The vibration device according to claim 6, wherein: The vibration transmission member comprises: a first vibration transmitting member disposed at one edge of the base member; and A second vibration transmitting member is arranged at the other edge of the base member facing the first vibration transmitting member.

9. The vibration device according to claim 8, wherein: Each of the first vibration transfer member and the second vibration transfer member protrudes from the base member.

10. The vibration device according to claim 8, wherein: Each of the first vibration transferring member and the second vibration transferring member has a line shape. 11 . The vibration device according to claim 6 , further comprising an adhesive member between the vibration generating component and the base member.

12. The vibration device according to claim 1, wherein The vibration generating component comprises: a first covering member; a second covering member; and A vibration component is located between the first cover member and the second cover member, and the vibration component includes a piezoelectric material.

13. The vibration device according to claim 12, wherein: The vibration generating component further includes a signal supply member electrically connected to the vibration component, and A portion of the signal supply member is accommodated between the first cover member and the second cover member.

14. The vibration device according to claim 1, wherein The vibration generating component comprises: a first vibration generating component; a second vibration generating component stacked on the first vibration generating component; and an intermediate member located between the first vibration generating component and the second vibration generating component, Wherein, one of the first vibration generating component and the second vibration generating component is connected to the vibration transmitting component.

15. The vibration device according to claim 14, wherein: Each of the first vibration generating component and the second vibration generating component includes: a first covering member; a second covering member; and A vibrating component between the first cover member and the second cover member, the vibrating component comprising a piezoelectric material.

16. The vibration device according to claim 15, wherein: Each of the first vibration generating component and the second vibration generating component further includes a signal supply member electrically connected to the vibration component, and A portion of the signal supply member is accommodated between the first cover member and the second cover member.

17. A display device, comprising: A display member configured to display an image; a vibration generating device comprising one or more vibration devices configured to vibrate the display member; as well as a connecting member located between the display member and the vibration generating device, wherein the one or more vibration devices include a vibration device according to one of claims 1 to 16, and Wherein, the display component comprises: a display panel comprising a plurality of pixels configured to display the image; and A touch panel is connected to the display panel.

18. The display device according to claim 17, wherein: The vibration generating device includes a plurality of vibration devices, and At least some of the plurality of vibration devices include different numbers of vibration transmitting components and vibration generating components.

19. The display device according to claim 17, wherein: The one or more vibration devices vibrate the display member based on a drive signal to generate ultrasonic vibrations at a surface of the display member.

20. The display device according to claim 17, wherein: The one or more vibration devices are connected to the rear surface of the display member with an air gap therebetween.

Images