Patent Publication Number: US-10771899-B2

Title: Display apparatus

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     This application is a continuation of U.S. patent application Ser. No. 16/120,602, filed on Sep. 4, 2018, which claims the benefit of and priority to Korean Patent Application No. 10-2017-0163410, filed on Nov. 30, 2017, the entirety of each of which is hereby incorporated by reference. 
    
    
     BACKGROUND 
     1. Technical Field 
     The present disclosure relates to a display apparatus. 
     2. Discussion of the Related Art 
     With the advancement of an information-oriented society, various desires for the display field of expressing information in accordance with an electrical information signal are increasing. Thus, research is being conducted on various display apparatuses that are thin, light, and have low power consumption. For example, a display apparatus may include a liquid crystal display (LCD) apparatus, a field emission display (FED) apparatus, an organic light-emitting display (OLED) apparatus, etc. 
     A display apparatus may display an image on a display panel, but an additional speaker for supplying sound has to be provided. If the speaker is provided in a display apparatus, the sound generated in the speaker advances toward a lower or rear portion of the display panel, instead of toward a front portion of the display panel. Thus, the sound does not advance toward a user who watches the image displayed on the display panel, so that it disrupts the user&#39;s immersion experience. 
     If the speaker is included in a set apparatus, such as television (TV), the speaker occupies a space that may impose a restriction on design and a spatial disposition of the set apparatus. To solve this problem, the display apparatus may output sound toward a front portion of the display panel, e.g., through vibration of the display panel. 
     However, a problem occurs in that a rolling phenomenon occurs in a vibration generator for vibrating the display panel. If the rolling phenomenon occurs in the vibration generator, the sound of the display device may be distorted, and sound deterioration is generated, whereby a problem occurs in that the vibration generator is not operated normally. To solve this problem, development of a display apparatus, which may reduce, or even prevent, a rolling phenomenon of a vibration generator from occurring, is desired. 
     SUMMARY 
     Accordingly, the present disclosure is directed to a display apparatus that substantially obviates one or more of the issues due to limitations and disadvantages of the related art. 
     An aspect of the present disclosure is to provide a display apparatus that reduces or prevents a rolling phenomenon, which may occur when a vibration generator vibrates a display panel, from occurring. 
     Another aspect of the present disclosure is to provide a display apparatus that reduces or prevents a rolling phenomenon of a vibration generator from occurring by interposing a supporting member between a display panel and the vibration generator. 
     Another aspect of the present disclosure is to provide a display apparatus that reduces or prevents sound distortion and deterioration from occurring by reducing or preventing a rolling phenomenon of a vibration generator from occurring. 
     Another aspect of the present disclosure is to provide a display apparatus that improves aesthetic design by omitting a space in which a speaker would be disposed separately, in addition to an area of a display panel, and improves a viewer&#39;s immersion experience by improving picture quality and sound quality. 
     Additional features and aspects will be set forth in the description that follows, 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 attained by the structure particularly pointed out in the written description, or derivable therefrom, and the claims hereof as well as the appended drawings. 
     To achieve these and other aspects of the inventive concepts as embodied and broadly described, there is provided a display apparatus, including: a display panel configured to display an image by emitting light, a rear structure configured to support the display panel, a vibration generator configured to vibrate the display panel, and a supporting member between the display panel and the vibration generator, the supporting member being configured to maintain a distance between the display panel and the vibration generator. 
     Other systems, methods, features and advantages will be, or will become, apparent to one with skill in the art upon examination of the following figures and detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the present disclosure, and be protected by the following claims. Nothing in this section should be taken as a limitation on those claims. Further aspects and advantages are discussed below in conjunction with embodiments of the disclosure. It is to be understood that both the foregoing general description and the following detailed description of the present disclosure are examples and explanatory, and are intended to provide further explanation of the disclosure as claimed. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accompanying drawings, that may be included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain various principles of the disclosure. 
         FIG. 1  is a perspective view of a display apparatus according to a first example embodiment of the present disclosure. 
         FIG. 2  is a rear view of a display apparatus of  FIG. 1 . 
         FIG. 3  is a cross-sectional view taken along line I-I′ of  FIGS. 1 and 2 . 
         FIG. 4  is a rear view of a display apparatus according to a second example embodiment of the present disclosure. 
         FIG. 5  is a cross-sectional view taken along line II-II′ of  FIG. 4 . 
         FIG. 6  is a cross-sectional view of an area A of  FIG. 5  in accordance with a first example embodiment of a vibration generator. 
         FIG. 7  is a cross-sectional view of elements of a vibration generator in a display apparatus of  FIG. 6 . 
         FIG. 8  is a perspective view of elements of a vibration generator in a display apparatus of  FIG. 6 . 
         FIG. 9  is a plane view of elements of a vibration generator in a display apparatus of  FIG. 6 . 
         FIG. 10  is a cross-sectional view of an area A of  FIG. 5  in accordance with a second example embodiment of a vibration generator. 
         FIG. 11  is a plane view of elements of a vibration generator in a display apparatus of  FIG. 10 . 
     
    
    
     Throughout the drawings and the detailed description, unless otherwise described, the same drawing reference numerals should be understood to refer to the same elements, features, and structures. The relative size and depiction of these elements may be exaggerated for clarity, illustration, and convenience. 
     DETAILED DESCRIPTION 
     Reference will now be made in detail to embodiments of the present disclosure, examples of which may be illustrated in the accompanying drawings. In the following description, when a detailed description of well-known functions or configurations related to this document is determined to unnecessarily cloud a gist of the inventive concept, the detailed description thereof will be omitted. The progression of processing steps and/or operations described is an example; however, the sequence of steps and/or operations is not limited to that set forth herein and may be changed as is known in the art, with the exception of steps and/or operations necessarily occurring in a particular order. Like reference numerals designate like elements throughout. Names of the respective elements used in the following explanations are selected only for convenience of writing the specification and may be thus different from those used in actual products. 
     Advantages and features of the present disclosure, and implementation methods thereof will be clarified through following example embodiments described with reference to the accompanying drawings. The present disclosure may, however, be embodied in different forms and should not be construed as limited to the example embodiments set forth herein. Rather, these example embodiments are provided so that this disclosure may be sufficiently thorough and complete to assist those skilled in the art to fully understand the scope of the present disclosure. Further, the present disclosure is only defined by scopes of claims. 
     A shape, a size, a ratio, an angle, and a number disclosed in the drawings for describing embodiments of the present disclosure are merely an example. Thus, the present disclosure is not limited to the illustrated details. Like reference numerals refer to like elements throughout. In the following description, when the detailed description of the relevant known function or configuration is determined to unnecessarily obscure an important point of the present disclosure, the detailed description of such known function or configuration may be omitted. In a case where terms “comprise,” “have,” and “include” described in the present specification are used, another part may be added unless a more limiting term, such as “only,” is used. The terms of a singular form may include plural forms unless referred to the contrary. 
     In construing an element, the element is construed as including an error or tolerance range even where no explicit description of such an error or tolerance range. In describing a position relationship, when a position relation between two parts is described as, for example, “on,” “over,” “under,” or “next,” one or more other parts may be disposed between the two parts unless a more limiting term, such as “just” or “direct(ly),” is used. In describing a time relationship, when the temporal order is described as, for example, “after,” “subsequent,” “next,” or “before,” a case which is not continuous may be included unless a more limiting term, such as “just,” “immediate(ly),” or “direct(ly),” is used. 
     It will be understood that, although the terms “first,” “second,” etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure. 
     In describing elements of the present disclosure, the terms like “first,” “second,” “A,” “B,” “(a),” and “(b)” may be used. These terms are merely for differentiating one element from another element, and the essence, sequence, order, or number of a corresponding element should not be limited by the terms. Also, when an element or layer is described as being “connected,” “coupled,” or “adhered” to another element or layer, the element or layer can not only be directly connected or adhered to that other element or layer, but also be indirectly connected or adhered to the other element or layer with one or more intervening elements or layers “disposed” between the elements or layers, unless otherwise specified. 
     The term “at least one” should be understood as including any and all combinations of one or more of the associated listed items. For example, the meaning of “at least one of a first item, a second item, and a third item” denotes the combination of all items proposed from two or more of the first item, the second item, and the third item as well as the first item, the second item, or the third item. 
     In the description of embodiments, when a structure is described as being positioned “on or above” or “under or below” another structure, this description should be construed as including a case in which the structures contact each other as well as a case in which a third structure is disposed therebetween. The size and thickness of each element shown in the drawings are given merely for the convenience of description, and embodiments of the present disclosure are not limited thereto. 
     Features of various embodiments of the present disclosure may be partially or overall coupled to or combined with each other, and may be variously inter-operated with each other and driven technically as those skilled in the art can sufficiently understand. Embodiments of the present disclosure may be carried out independently from each other, or may be carried out together in co-dependent relationship. 
     In the present disclosure, examples of a display apparatus are used to encompass a display apparatus, such as an organic light-emitting display module (OLED module) or a liquid crystal module (LCM), that may include a display panel and a driving unit for driving the display panel. The display apparatus may be used to further encompass a set device (or a set apparatus) or a set electronic apparatus, as a finished product, such as a notebook computer or a laptop computer, a television set, a computer monitor, an equipment apparatus (e.g., display equipment in an automotive apparatus or another type of vehicle apparatus) or a mobile electronic apparatus that may be a complete product or a final product (for example, a smartphone or an electronic pad, etc.) that may include the LCM or the OLED module. Therefore, in the present disclosure, the display apparatus may be used as the display apparatus itself, such as the LCM or the OLED module, and also as a set apparatus, which may be a final consumer apparatus or an application product including the LCM or the OLED module. 
     In some example embodiments, the LCM or the OLED module including a display panel and a driving unit thereof may be referred to as a “display apparatus,” and the electronic apparatus as a final product including the LCM or the OLED module may be referred to as a “set apparatus.” For example, the display apparatus may include a display panel, such as an LCD or an OLED, and a source printed circuit board (PCB) as a controller for driving the same. The set apparatus may further include a set PCB that may be a set controller that may be electrically connected to the source PCB, and may control the overall operations of the set apparatus. 
     A display panel applied to an embodiment may use any type of display panel, such as a liquid crystal display panel, an organic light-emitting diode (OLED) display panel, and an electroluminescent display panel, but embodiments are not limited to these specific types. For example, the display panel may be any panel capable of being vibrated by a sound generation device according to embodiments of the present disclosure to output sound. The shape and/or a size of a display panel applied to a display apparatus according to embodiments of the present disclosure are not limited. 
     For example, if a display panel is a liquid crystal display panel, the display panel may include a plurality of gate lines, a plurality of data lines, and a plurality of pixels respectively provided in a plurality of pixel areas of the gate lines and the data lines. Also, the display panel may include an array substrate including a thin film transistor (TFT), which may be a switching element for adjusting a light transmittance of each of the plurality of pixels, an upper substrate including a color filter and/or a black matrix, and a liquid crystal layer between the array substrate and the upper substrate. 
     In addition, if a display panel is an organic light-emitting display panel, the display panel may include a plurality of gate lines, a plurality of data lines, and a plurality of pixels respectively provided in a plurality of pixel areas of the gate lines and the data lines. The display panel may include an array substrate including a TFT, which may be an element for selectively applying a voltage to each of the pixels, an organic light-emitting device layer on the array substrate, and an encapsulation substrate disposed on the array substrate to cover the organic light-emitting device layer. The encapsulation substrate may protect the TFT and the organic light-emitting device layer from an external impact, and may prevent moisture or oxygen from permeating into the organic light-emitting device layer. A layer provided on the array substrate may include an inorganic light-emitting layer, for example, a nano-sized material layer, a quantum dot, or the like). The display panel may further include a backing, such as a metal plate attached on the rear surface of the display panel, but the backing is not limited to the metal plate, and another structure may be provided. 
     Hereinafter, a display apparatus according to example embodiments will be described in detail with reference to the accompanying drawings. 
       FIG. 1  is a perspective view of a display apparatus according to a first example embodiment of the present disclosure.  FIG. 2  is a rear view of a display apparatus of  FIG. 1 .  FIG. 3  is a cross-sectional view taken along line I-I′ of  FIGS. 1 and 2 . 
     With reference to  FIGS. 1 to 3 , the display apparatus  10  may include a display panel  100 , a vibration generator  200 , a rear structure  300 , an adhesive member  500 , and a partition member  600 . The display panel  100  may display an image, and may be realized as any kind of display panel, such as a liquid crystal display panel, an OLED display panel, and an electroluminescent display panel. The display panel  100  may be vibrated in accordance with vibration of the vibration generator  200  to output sound. 
     According to an embodiment of the present disclosure, the display panel  100  may display an image in the form of a top-emission mode, a bottom-emission mode, or a dual-emission mode in accordance with a structure of a pixel array layer that may include an anode electrode, a cathode electrode, and an organic compound layer. The top-emission mode may display an image by emitting visible light generated from the pixel array layer to the front portion of a base substrate, and the bottom-emission mode may display an image by emitting visible light emitted from the pixel array layer to the rear portion of the base substrate. The dual-emission mode may display an image by emitting visible light in both directions. 
     The vibration generator  200  may be on the rear surface of the display panel  100 , and may vibrate the display panel  100 . For example, the vibration generator  200  may be fixed to the rear structure  300 , and may output sound to the front portion of the display panel  100  by vibrating the display panel  100 . For example, the vibration generator  200  may generate sound by using the display panel  100  as a vibration plate. 
     The vibration generator  200  may directly vibrate the display panel  100  in contact with the rear surface of the display panel  100  by passing through the rear structure  300 . According to an embodiment of the present disclosure, an upper portion of the vibration generator  200  may be inserted or accommodated into a hole in the rear structure  300 , and then may be connected to the rear surface of the display panel  100 . A lower portion of the vibration generator  200  may be fixed in contact with a rear surface of the rear structure  300 . Therefore, the vibration generator  200  may be vibrated in accordance with a vibration signal corresponding to a sound signal related to an image to vibrate the display panel  100  by using the rear structure  300  as a support plate, and may output sound to the front portion of the display panel  100 . Therefore, the display apparatus  10  may match a position where an image may be generated with a position where a sound may be generated by outputting the sound to the front portion, and not to the rear and lower portions of the display panel  100 , using the display panel  100  as a vibration plate of a sound device. Thus, an immersion experience of a viewer who may view an image of the display apparatus  10  may be improved. 
     According to an embodiment of the present disclosure, the vibration generator  200  may include first and second sound-generating modules  210  and  220  that may vibrate different areas of the display panel  100 . For example, the first and second sound-generating modules  210  and  220  may be fixed through the rear structure  300 , and may be spaced apart from each other. For example, the display panel  100  may include a left area and a right area. It should be appreciated that the terms “left” and “right” are used herein for convenience and are interchangeable. The first sound-generating module  210  may overlap the left area of the display panel  100 , and the second sound-generating module  220  may overlap the right area of the display panel  100 . Therefore, the first sound-generating module  210  may be at a left side on the rear surface of the display panel  100  to vibrate the left area of the display panel  100 , and the second sound-generating module  220  may be at a right side on the rear surface of the display panel  100  to vibrate the right area of the display panel  100 . The first and second sound-generating modules  210  and  220  may be driven independently, e.g., by receiving their respective signals different from each other. For example, the first sound-generating module  210  may generate sound by using the left area of the display panel  100  as a vibration plate, and the second sound-generating module  220  may generate sound by using the right area of the display panel  100  as a vibration plate. 
     According to an embodiment of the present disclosure, the vibration generator  200 , which may be a speaker, may be a “transducer,” an “actuator,” or “exciter,” but embodiments are not limited to these terms. That is, the vibration generator  200  may be any sound device for outputting a sound in accordance with an electrical signal. 
     The rear structure  300  may be on the rear surface of the display panel  100  to support the display panel  100 . For example, the rear structure  300  may be spaced apart from the display panel  100 , and may support the vibration generator  200  in the rear structure  300 . 
     The rear structure  300  may cover an entire portion of the rear surface of the display panel  100  such that it may be spaced apart from the rear surface of the display panel  100 , and may have a plate-shape formed of a glass material, a metal material, and/or a plastic material, although embodiments are not limited thereto. For example, a periphery or sharp corner portion of the rear cover  301  may have a slope shape or curved shape, e.g., by a chamfering or trimming process, or corner rounding process. The rear structure  300  of a glass material may be a sapphire glass. For example, the rear structure  300  of a metal material may be formed of one or more of: aluminum (Al), an Al alloy, a magnesium (Mg) alloy, and/or alloy of iron (Fe) and nickel (Ni), although embodiments are not limited to these example. As another example, the rear structure  300  may have a stacked structure of a metal plate and a glass plate that is relatively thinner than the metal plate, facing the rear surface of the display panel  100 . In this case, the rear surface of the display apparatus  10  may be used as a mirror surface by the metal plate. 
     The rear structure  300  may include a hole into which the vibration generator  200  may be inserted or accommodated. For example, the hole may be punctured in some area of the rear structure  300 , e.g., to have a circular shape or polygonal shape along a thickness direction of the rear structure  300 , whereby the vibration generator  200  may be inserted or accommodated into the hole. 
     The adhesive member  500  may be between the periphery of the display panel  100  and the periphery of the rear structure  300 , and may adhere the display panel  100  to the rear structure  300 . The adhesive member  500  may be on the rear structure  300  to support the periphery of the display panel  100 . The adhesive member  500  may be a double-sided tape or a single-sided tape, but embodiments are not limited thereto. Also, the adhesive member  500  may seal a space between the display panel  100  and the rear structure  300 . 
     The adhesive member  500  may include a foam pad including, for example, an acrylic based material, and an adhesive layer on each of front and rear surfaces of the foam pad. The adhesive member  500  may be an optically clear resin (OCR), an optically clear adhesive (OCA), and/or a double-sided tape. Embodiments are not limited to these examples. 
     The partition member  600  may be between the display panel  100  and the rear structure  300 . The partition member  600  may be between the first and second sound-generating modules  210  and  220 , and may separate areas in the first and second sound-generating generating modules  210  and  220 . For example, the first sound-generating module  210  may vibrate the left area of the display panel  100 , and the second sound-generating module  220  may vibrate the right area of the display panel  100 . Therefore, the partition member  600  may reduce or prevent interference between sounds respectively generated in the left area and the right area of the display panel  100 . 
     The partition member  600  may referred to as an “enclosure” or a “baffle,” but embodiments are not limited to these terms. For example, the partition member  600  may be formed of a polyurethane or a polyolefin material, but embodiments are not limited thereto. The partition member  600  may be a one-sided tape or a double-sided tape, and may be formed of a material having elasticity that may be compressed to some extent. 
     The partition member  600  may separate left and right sounds generated in the first and second sound-generating modules  210  and  220  from each other. Because the partition member  600  may attenuate or absorb vibration of the display panel  100  at the center of the display panel  100 , the partition member  600  may shield the sound at the left area of the display panel  100  from being transferred to the right area. Alternatively, the partition member  600  may shield the sound at the right area of the display panel  100  from being transferred to the left area. Therefore, because the partition member  600  may separate left and right sources from each other and output a stereo sound, the partition member  600  may improve a sound output characteristic. The partition member  600  may partition sounds generated by the first and second sound-generating modules  210  and  220 , whereby a sound in the form of a 2.0 channel may be output from the display panel  100  in accordance with vibration of the display panel  100 . 
       FIG. 4  is a rear view of a display apparatus according to a second example embodiment of the present disclosure.  FIG. 5  is a cross-sectional view taken along line II-II′ of  FIG. 4 . 
     The display apparatus of the examples illustrated in  FIGS. 4 and 5  is different from that of the examples illustrated in  FIGS. 1 to 3  in the partition member  600 . Hereinafter, the following description will be given based on the partition member  600 , and repeated description of the other elements will be omitted or provided briefly. 
     With reference to the examples of  FIGS. 4 and 5 , the partition member  600  may include first to third partition members  610 ,  620 , and  630 . For example, the display panel  100  may include a left area, a right area, and a center area. The first partition member  610  may surround the left area of the display panel  100 , the second partition member  620  may surround the right area of the display panel  100 , and the third partition member  630  may surround the center area of the display panel  100 . For example, the first partition member  610  or the second partition member  620  may be disposed along four sides outside the left area or the right area of the display panel  100 , and the third partition member  630  may be between the first and second partition members  610  and  620 . Each of the first to third partition members  610 ,  620 , and  630  may output sound to only the front portion of the display panel  100 , e.g., by shielding the sound from leaking through each side of the display panel  100 , whereby a sound output characteristic may be improved. 
     Each of the first and second partition members  610  and  620  may include four sides, and the third partition member  630  may include two sides. For example, the first partition member  610  may include first to fourth sides  611 ,  612 ,  613 , and  614 ; the second partition member  620  may include first to fourth sides  621 ,  622 ,  623 , and  624 ; and the third partition member  630  may include first and second sides  631  and  632 . As shown in  FIG. 4 , the first and second sides  631  and  632  of the third partition member  630  may have a bent shape, a straight line shape, or a round shape, but embodiments are not limited to these shapes. For example, each of the first to fourth sides  611 ,  612 ,  613 , and  614  of the first partition member  610  may be different from each of the first to fourth sides  621 ,  622 ,  623 , and  624  of the second partition member  620  in that it may be disposed at the left area or the right area of the display panel  100 . Therefore, a description of the first to fourth sides  621 ,  622 ,  623 , and  624  of the second partition member  620 , which may be the same as those of the first to fourth sides  611 ,  612 ,  613 , and  614  of the first partition member  610 , will be omitted. 
     The partition member  600  may include a bent portion on at least one of the four sides. For example, each of the second side  612  and the fourth side  614  of the first partition member  610  may include a bent portion  612 - 1  or  614 - 1 . Therefore, two up and down sides  612  and  614  of the four sides surrounding the left area of the display panel  100  may include a bent portion to have a certain inclined angle (θ) with respect to a horizontal direction of the display panel  100 . The bent portion  612 - 1  may be configured with two straight-line portions, and may be formed at a position where the two straight-line portions contact each other. The bent portion  612 - 1  may have a straight line shape, a curved line shape, or a round shape, but embodiments are not limited thereto. 
     The inclined angle (θ) of the bent portion  612 - 1  may be set based on a requirement for restriction of the standing wave, and the inclined angle (θ) of the bent portion  712  may be set within a range, e.g., from about 10° to 30°. For example, in case of the sound output range for the low-pitched sound band or the large output of the sound-generating module, the inclined angle (θ) of the bent portion  612 - 1  may be relatively large. In a case of the sound output range for the high-pitched sound band or the small output of the sound-generating module, the inclined angle (θ) of the bent portion  612 - 1  may be relatively small. 
     The bent portion  612 - 1  may avoid or prevent a reduction of sound pressure level between the display panel  100  and the rear structure  300  from being generated. For example, sound waves generated by the display panel  100  through use of the vibration generator  200  may radially progress from the center of the vibration generator  200 . These sound waves may be referred to as a “progressive wave.” If the progressive wave is reflected on one side of the partition member  600 , and progresses to an opposite direction, it may be referred to as a “reflected wave.” If the reflected wave overlaps and interferes with the progressive wave, it may not progress, and it may be in a standing state, which may be referred to as a “standing wave.” The standing waves may deteriorate the sound output characteristic by the reduction of sound pressure level. Therefore, to avoid or prevent the reduction of sound pressure level by the standing wave generated due to the interference between the reflected wave and the progressive wave, a bent portion may be provided in the partition member  600 . The standing wave causing the reduction of sound pressure level may be generated at a point having the large the progressive wave and the large reflected wave. Therefore, the bent portion  612 - 1  may be disposed at the position having the largest sound wave approaching from the sound-generating module. The bent portion  612 - 1  may be bent toward the vibration generator  200 . 
     The first to third partition members  610 ,  620 , and  630  may be formed of a double-sided tape or single-sided tape, e.g., of a polyurethane or polyolefin material having a certain thickness (or height), but embodiments are not limited thereto. The first to third partition members  610 ,  620 , and  630  may have elasticity that may be compressed to some extent, and may be referred to as an “enclosure” or a “baffle.” 
       FIG. 6  is a cross-sectional view of an area A of  FIG. 5  in accordance with a first example embodiment of a vibration generator.  FIG. 7  is a cross-sectional view of elements of a vibration generator in a display apparatus of  FIG. 6 .  FIG. 8  is a perspective view of elements of a vibration generator in a display apparatus of  FIG. 6 .  FIG. 9  is a plane view of elements of a vibration generator in a display apparatus of  FIG. 6 . 
     With reference to the examples of  FIGS. 6 to 9 , the vibration generator  200  may include at least one sound-generating module  210  fixed to the rear structure  300 , which may vibrate the display panel  100 . At least one sound-generating module  210  may vibrate the display panel  100  in accordance with a current for generating a sound applied based on Fleming&#39;s Left Hand Rule for Motors. The vibration generator  200  may include a plurality of sound-generating modules, each of which may be symmetrically disposed based on a rear center of the display panel  100 , but embodiments are not limited thereto. 
     The sound-generating module  210  may include a module frame  201 , a vibration unit  203 , and a plurality of connection members  205 . The module frame  201  may be fixed to the rear structure  300  to overlap a hole  330  in the rear structure  300 , and may support the sound-generating module  210 . The module frame  201  may receive at least one vibration unit  203 . For example, the vibration unit  203  may be referred to as a “transducer,” an “actuator,” or an “exciter.” The module frame  201  may be fixed to the rear structure  300  to reduce or prevent vibration transferred to the rear portion of the sound-generating module  210 . For example, the module frame  201  may efficiently transfer the vibration of the sound-generating module  210  to the display panel  100  by reducing or minimizing vibration loss generated from the rear portion of the sound-generating module  210 . The module frame  201  may maintain a sound pressure level in the sound-generating module  210 , and may improve a vibration characteristic of the sound-generating module  210 , e.g., by forming a sealing space with the display panel  100 . 
     The module frame  201  may include a plurality of connection areas  201   a  and a vibration area  201   b . The plurality of connection areas  201   a  may receive a plurality of connection members  205 . For example, the plurality of connection areas  201   a  may correspond to a connection member mounting hole through which the plurality of connection members  205  pass. The plurality of connection areas  201   a  may be aligned with a connection member mounting hole of a second structure member  320 , and therefore may receive the plurality of connection members  205 . Therefore, each of the plurality of connection members  205  may be accommodated in the plurality of connection areas  201 , and may connect the module frame  201  to the rear structure  300 . 
     The vibration area  201   b  may accommodate a vibration unit  203 . The module frame  201  may include at least one vibration area  201   b . The module frame  201  may include as many vibration units  203  as the number of vibration areas  201   b . For example, the module frame  201  may include a plurality of vibration areas  201   b , thereby accommodating a plurality of actuators or exciters. 
     According to an embodiment of the present disclosure, the plurality of connection areas  201   a  may surround the vibration area  201   b , and may be spaced apart therefrom. For example, the vibration area  201   b  may be on a center area of the module frame  201 , and the plurality of connection areas  201   a  may be on the peripheries or corners of the module frame  201 . The plurality of connection areas  201   a  may be formed symmetrically with respect to the vibration area  201   b . The plurality of connection areas  201   a  may be provided in various ways in accordance with the structure and shape of the module frame  201  and arrangement relation of the vibration area  201   b . Therefore, the plurality of connection areas  201   a  may be formed symmetrically with respect to the vibration area  201   b , and thus, the module frame  201  may be stably attached to the rear structure  300 , in spite of vibration of the vibration unit  203 . 
     The sound-generating module  210  may include first and second vibration units  203 - 1  and  203 - 2  that may be accommodated in one module frame  201 . Therefore, the module frame  201  may include first to fourth connection areas  201   a - 1 ,  201   a - 2 ,  201   a - 3 , and  201   a - 4 ; and may include first and second vibration areas  201   b - 1  and  201   b - 2 . For example, each of the first and the second vibration areas  201   b - 1  and  201   b - 2  may accommodate each of the first and the second vibration units  203 - 1  and  203 - 2 , and may be in parallel with a direction of a long side of the module frame  201 . The first vibration area  201   b - 1  may be on the left side of the module frame  201 , and the second vibration area  201   b - 2  may be on the right side of the module frame  201 . The first to the fourth connection areas  201   a - 1 ,  201   a - 2 ,  201   a - 3 , and  201   a - 4  may be respectively on the corners of the module frame  201 , and may surround the first and the second vibration areas  201   b - 1  and  201   b - 2  to be spaced apart therefrom. Therefore, the first to the fourth connection areas  201   a - 1 ,  201   a - 2 ,  201   a - 3 , and  201   a - 4  may stably attach the module frame  201  to the rear structure  300 , in spite of vibration of the first and the second vibration units  203 - 1  and  203 - 2 . 
     The module frame  201  may support a lower portion of a magnet member  203   a . The module frame  201  may increase magnetic flux density flowing to the vibration unit  203  by controlling magnet flux formed through magnet member  203   a  with an upper plate  203   b . For example, the module frame  201  may include one or more of: a silicon nitride, an aluminum nitride, a zirconium nitride, a titanium nitride, a hafnium nitride, a tantalum nitride, a silicon oxide, an aluminum oxide, and/or a titanium oxide, but embodiments are not limited thereto. Therefore, each of the module frame  201  and the upper plate  203   b  may be on each of the lower and upper portions of the magnet member  203   a , and may improve a vibration characteristic by increasing magnetic flux density formed though the magnet member  203   a  and a coil  203   e.    
     The vibration unit  203  may be on the module frame  201 , and may vibrate the display panel  100 . For example, using the module frame  201  as a supporting member, the vibration unit  203  may vibrate the display panel  100  in accordance with a vibration signal corresponding to a sound signal, e.g., related to images. The vibration unit  203  may include a magnet member  203   a , an upper plate  203   b , a side frame  203   c , a bobbin  203   d , a coil  203   e , an external frame  203   f , a damper  203   g , and a bobbing ring  203   h.    
     The magnet member  203   a  may be on the module frame  201 . For example, the magnet member  203   a  may be between the upper plate  203   b  and the module frame  201 , and may be surrounded to be spaced apart through the side frame  203   c . When the upper plate  203   b  is on one portion of the magnet member  203   a , and the module frame  201  is on another portion, which may be opposite to the one portion of the magnet member  203   a , the upper plate  203   b  and the module frame  201  may control magnetic flux generated in the magnet member  203   a . Therefore, when the magnet member  203   a  is between the upper plate  203   b  and the module frame  201 , magnetic flux generated in the magnet member  203   a  may be concentrated toward the inside of the vibration unit  203 , and a leakage magnet flux may be suppressed. 
     The magnet member  203   a  may be a permanent magnet, e.g., with a ring shape or a cylinder shape. For example, the magnet member  203   a  may be implemented, e.g., with a sintered magnet, for example, with a material, such as barium ferrite. A material of the magnet member  203   a  may include one or more of: ferric oxide (Fe 2 O 3 ); barium carbonate (or witherite) (BaCO 3 ); neodymium (Nd); strontium ferrite (Fe 12 O 19 Sr), e.g., with an improved magnet component; and an alloy cast magnet including aluminum (Al), nickel (Ni), cobalt (Co), and/or the like. As another example, the neodymium magnet may be neodymium-iron-boron (Nd—Fe—B). However, embodiments are not limited to these examples. 
     The upper plate  203   b  may be on an upper portion of the magnet member  203   a , and may be spaced apart from the display panel  100 . When the magnet member  203   a  and the upper plate  203   b  are accommodated to the inside of the bobbin  203   d  with a cylinder shape, the outside surface of the magnet member  203   a  and the upper plate  203   b  may be surrounded by the bobbin  203   d . Therefore, the magnet member  203   a  and the upper plate  203   b  may be guided by the bobbin  203   d  to perform a linear reciprocating motion. For example, the upper plate  203   b  may be referred to as a “center pole” or “pole pieces,” etc. When the upper plate  203   b  is formed of a magnetic material, such as iron (Fe), magnetic flux density formed through the magnet member  203   a  may be increased. 
     The side frame  203   c  may be on the module frame  201 , and may surround the lower part of the vibration unit  203  to be spaced apart therefrom. For example, the side frame  203   c  may be formed of a conductive material, and may control magnetic flux generated from the magnet member  203   a . For example, the side frame  203   c  may concentrate the magnetic flux generated from the magnet member  203   a  into the vibration unit  203 , e.g., to suppress a leakage magnetic flux by surrounding the magnet member  203   a  to be spaced apart therefrom. Therefore, the upper plate  203   b  may be on the upper portion of the magnet member  203   a , the module frame  201  may be on the lower portion of the magnet member  203   a , and the side frame  203   c  may suppress a leakage magnetic flux generated from the magnet member  203   a  by surrounding the sides of the magnet member  203   a  to be spaced apart therefrom, thereby increasing magnetic flux density and improving a vibration characteristic. 
     For example, the side frame  203   c  may include one or more of: a silicon nitride, an aluminum nitride, a zirconium nitride, a titanium nitride, a hafnium nitride, a tantalum nitride, a silicon oxide, an aluminum oxide, and/or a titanium oxide, but embodiments are not limited thereto. The side frame  203   c  may include the same material as that of the module frame  201 , or may be a material different from that of the module frame  201 . The side frame  203   c  may be formed in a single body with the module frame  201 , or may be attached to the module frame  201  after the module frame  201  is formed. The side frame  203   c  may be referred to as other terms, such as a “yoke,” but embodiments are not limited thereto. 
     The bobbin  203   d  may surround the upper plate  203   b , and may be attached to the rear surface of the display panel  100  through the bobbin ring  203   h . For example, the bobbin  203   d  may surround the magnet member  203   a  and the upper plate  203   b , and may be surrounded by the side frame  203   c  to be spaced apart therefrom. For example, when a sound-generating current is applied to the coil  203   e  wound on the outer circumference of the bobbin  203   d  and a magnet field is formed inside the vibration unit  203 , the bobbin  203   d  may vibrate the display panel  100  by means of the magnetic field by using the bobbin ring  203   h  as a medium. Therefore, a front surface of the bobbin  203   d  may be in contact with the bobbin ring  203   h , whereby the bobbin  203   d  may vibrate the display panel  100  through the bobbin ring  203   h  in accordance based on a current being applied or not. The display panel  100  may generate a sound wave by receiving the vibration, and the sound wave may be output to the front portion of the display panel  100 . For example, the bobbin  203   d  may include a material with low heat conductivity, through which the magnetic flux may pass. For example, the bobbin  203   d  may be a cylinder structure including a material processed with, e.g., pulp or paper, synthetic resins, such as aluminum (Al), magnesium (Mg), an aluminum alloy, a magnesium alloy, a polypropylene, and polyamide-based fiber. However, embodiments are not limited to these examples. 
     The coil  203   e  may be wound on the outer circumference of the bobbin  203   d , and may surround the magnet member  203   a  to be spaced apart therefrom. For example, the coil  203   e  may be wound on the outer circumference of the bobbin  203   d , may surround the magnet member  203   a  to be spaced apart therefrom, and may be supplied with a sound-generating current. For example, the coil  203   e  may be referred to as a “voice coil.” If the sound-generating current is applied to the coil  203   e , the bobbin  203   d  may be vibrated by being guided by the damper  203   g  in accordance with Fleming&#39;s Left-Hand Rule for Motors, based on the applied magnetic field formed around the coil  203   e  and an external magnetic field formed around the magnet member  203   a . For example, the magnetic flux generated by the magnetic field may flow along a closed-loop connected to the coil  203   e , the side frame  203   c , the module frame  201 , the magnet member  203   a , the upper plate  203   b , and the coil  203   e  again. Therefore, the bobbin  203   d  may be vibrated while being guided by the damper  203   g , and then may transfer vibration to the display panel  100 . 
     The external frame  203   f  may be on the side frame  203   c . For example, the external frame  203   f  may extend from the outside of the upper portion of the side frame  203   c  to the display panel  100 . The external frame  203   f  may be spaced apart from the bobbin  203   d  in parallel with the bobbin  203   d . The upper portion of the external frame  203   f  may be connected to the damper  203   g  to support one portion of the damper  203   g . Therefore, while the other portion of the damper  203   g  may be connected to the bobbin  203   d , and may guide the vibration of the bobbin  203   d , the external frame  203   f  may be fixed to the upper portion of the side frame  203   c  to support one portion of the damper  203   g.    
     The damper  203   g  may be between the external frame  203   f  and the bobbin  203   d  to guide vibration of the bobbin  203   d . For example, one portion of the damper  203   g  may be connected to the upper portion of the external frame  203   f , and the other portion of the damper  203   g  may be connected to the bobbin  203   d . The damper  203   g  may be formed with a structure that may be wrinkled between the one portion and the other portion, and therefore may control and guide vibration of the bobbin  203   d  by being contracted and relaxed in accordance with linear reciprocating motion of the bobbin  203   d . Therefore, the damper  203   g  may be connected between the external frame  203   f  and the bobbin  203   d , thereby controlling a vibration distance of the bobbin  203   d  by a restoring force of the damper  203   g . For example, if the bobbin  203   d  vibrates to be higher or lower than a particular height, the bobbin  203   d  may be restored to its original position by the restoring force of the damper  203   g . The damper  203   g  may be referred to by other terms such as a “spider,” a “suspension,” and an “edge.” 
     The bobbin ring  203   h  may be between the bobbin  203   d  and the display panel  100 , and may transfer the vibration of the bobbin  203   d  to the display panel  100 . The bobbin ring  203   h  may attach or adhere the bobbin  203   d  to the rear surface of the display panel  100 . For example, the bobbin ring  203   h  may be realized as a double-sided tape, but embodiments are not limited thereto. The bobbin ring  203   h  may reduce, block, or prevent heat generated from the bobbin  203   d  from being transferred to the display panel  100 , and may efficiently transfer the vibration of the bobbin  203   d  to the display panel  100 . 
     The connection member  205  may connect the module frame  201  and the rear structure  300  with each other. For example, multiple connection members  205  may be provided, and may fix the module frame  201  to a rear surface of a second structure member  320 . For example, the connection member  205  may be fixed to the rear surface of the second structure member  320  by passing through the module frame  201 . The module frame  201  may include a connection member hole, and the second structure member  320  may include a connection member mounting hole. Therefore, the connection member hole of the module frame  201  and the connection member mounting hole of the second structure member  320  may be aligned so that the connection member  205  may simultaneously pass through the connection member hole and the connection member mounting hole. The connection member  205  may be connected to the connection member hole of the module frame  201  and the connection member mounting hole of the second structure member  320 , and may therefore fix the sound-generating module  210  to the rear structure  300 . 
     The rear structure  300  may include first and second structure members  310  and  320  and a hole  330 . For example, the first structure member  310  may be spaced apart from the display panel  100 , and may include a glass material. The second structure member  320  may overlap the display panel  100  on the first structure member  310 . The second structure member  320  may be spaced apart from the display panel  100 , and may be between the first structure member  310  and the display panel  100 . For example, the second structure member  320  may include a metal material. 
     The rear structure  300  may include a hole  330  in which the vibration generator  200  may be inserted or accommodated. For example, the first and second structure members  310  and  320  may include a hole  330  in which the sound-generating module  210  may be partially inserted or accommodated. Therefore, the sound-generating module  210  may be in contact with the rear surface of the display panel  100  by passing through the hole  330 . 
     The supporting member  400  may be between the display panel  100  and the vibration generator  200  to maintain a distance between the display panel  100  and the vibration generator  200 . For example, the supporting member  400  may be between the module frame  201  and the display panel  100 . The supporting member  400  may attach the front surface of the module frame  201  to the rear surface of the display panel  100 . The plurality of connection members  205  may fix the vibration generator  200  to the rear structure  300 . The supporting member  400  may support the vibration generator  200  from the rear surface of the display panel  100 . Therefore, the display apparatus  10  may both connect and fix the vibration generator  200  through the plurality of connection members  205  and the supporting member  400 . Therefore, the supporting member  400  may reduce or prevent a rolling phenomenon of the vibration generator  200  from occurring, and reduce or prevent sound distortion and a deterioration phenomenon of the display apparatus  10  from occurring. 
     For example, the rolling phenomenon represents a phenomenon in which the module frame  201  is not completely fixed to the rear structure  300 , and therefore the module frame  201  may be shaken during vibration of the vibration generator  200 . With regard to the rolling phenomenon, the inventors of the present disclosure have recognized that this rolling phenomenon may occur when the module frame  201  is connected to the rear structure  300  by depending on only the plurality of connection members  205 , and that the rolling phenomenon may cause sound distortion and deterioration phenomenon of the display apparatus  10 . Also, the inventors of the present disclosure have recognized that the rolling phenomenon is most prominent in a low-pitched sound band. 
     The display apparatus may include a partition member between the display panel and the rear structure and adjacent to the vibration generator. However, when the partition member is between the rear structure and the display panel, e.g., to block or prevent interference of a sound, the partition member cannot directly support the module frame of the vibration generator. Therefore, the inventors of the present disclosure have recognized that a rolling phenomenon of the vibration generator may not be prevented from occurring even if the display apparatus includes the partition member adjacent to the vibration generator. 
     Therefore, when the display apparatus  10  includes a supporting member  400  for directly bonding and fixing the module frame  201  to the rear surface of the display panel  100 , the module frame  201  may be stably supported, even when the vibration generator  200  vibrates, whereby a rolling phenomenon may be reduced or prevented from occurring. Although the supporting member  400  may include the same material as that of the partition member  600 , the partition member  600  may be between the display panel  100  and the rear structure  300  to prevent reduction of sound pressure level, but may not prevent a rolling phenomenon from occurring unlike the supporting member  400 . Therefore, the supporting member  400  may be between the module frame  201  and the display panel  100 , whereby a different configuration and effect from the partition member  600  may be obtained. 
     The supporting member  400  may include a material with lower elasticity than the module frame  201  and the display panel  100 . When the supporting member  400  includes a material with lower elasticity than the module frame  201  and the display panel  100 , the supporting member  400  may support the module frame  201  from the rear surface of the display panel  100 , and at the same time may reduce or prevent vibration of the display panel  100  from being transferred to the module frame  201 . Therefore, the supporting member  400  may stably support the module frame  201 , may improve vibration transmission characteristic of the vibration generator  200 , and may reduce or prevent a rolling phenomenon due to vibration of the vibration generator  200 . For example, the supporting member  400  may include a foam pad including, e.g., acrylic material, and an adhesive layer on each of a front surface and a rear surface of the foam pad, but embodiments are not limited thereto. 
     The supporting member  400  may be formed on areas other than the plurality of connection areas  201   a  and vibration areas  201   b . For example, the supporting member  400  may surround the vibration unit  203  to be spaced apart therefrom. For example, the vibration unit  203  may be at the central area of the module frame  201 , and the supporting member  400  may be at the peripheries or corners of the module frame  201 . The supporting member  400  may be disposed symmetrically based on the vibration unit  203 . The arrangement structure of the supporting member  400  may be provided in various ways that depend on a structure and shape of the module frame  201  and arrangement relations between the vibration unit  203  and the connection member  204 . Therefore, the supporting member  400  may be formed symmetrically with respect to the vibration unit  203 , and therefore may stably fix the module frame  201  to the rear structure  300 , in spite of vibration of the vibration unit  203 . 
     The sound-generating module  210  may include first and second vibration units  203 - 1  and  203 - 2  that may be accommodated in one module frame  201 . Therefore, the module frame  201  may include first to fourth connection areas  201   a - 1 ,  201   a - 2 ,  201   a - 3 , and  201   a - 4 , and may include first and second vibration areas  201   b - 1  and  201   b - 2 . The supporting member  400  may include first to fourth supporting members  410 ,  420 ,  430 , and  440 , which may be formed on areas other than the first to the fourth connection areas  201   a - 1 ,  201   a - 2 ,  201   a - 3 , and  201   a - 4  and the first and the second vibration areas  201   b - 1  and  201   b - 2 . 
     For example, the first vibration unit  203 - 1  may be at the left side of the module frame  201 , and the second vibration unit  203 - 2  may be at the right side of the module frame  201 . The first to fourth connection areas  201   a - 1 ,  201   a - 2 ,  201   a - 3 , and  201   a - 4  may be at respective corners of the module frame  201 , and the first to fourth supporting members  410 ,  420 ,  430 , and  440  may be at respective peripheries of the module frame  201 . Therefore, the first to fourth supporting members  410 ,  420 ,  430 , and  440  may be at respective peripheries of the module frame  201  other than at the first to fourth connection areas  201   a - 1 ,  201   a - 2 ,  201   a - 3 , and  201   a - 4  and the first and second vibration areas  201   b - 1  and  201   b - 2 , and may surround the first and second vibration areas  201   b - 1  and  201   b - 2  to be spaced apart therefrom. The plurality of connection members  205  may fix the vibration generator  200  to the rear structure  300 , and the plurality of supporting members  400  may support the vibration generator  200  from the rear surface of the display panel  100 . Therefore, the first to fourth supporting members  410 ,  420 ,  430 , and  440  and the first to fourth connection areas  201   a - 1 ,  201   a - 2 ,  201   a - 3 , and  201   a - 4  may both connect and fix the vibration generator  200  by surrounding the first and second vibration units  203 - 1  and  203 - 2 . Therefore, the first to fourth supporting members  410 ,  420 ,  430 , and  440  may stably fix the module frame  201  to the rear structure  300 , in spite of vibration of the first and second vibration units  203 - 1  and  203 - 2 , thereby reducing or preventing a rolling phenomenon of the vibration generator  200 . 
     The supporting member  400  may be between the plurality of connection members  205  among the peripheries of the module frame  201 . For example, the first to fourth connection areas  201   a - 1 ,  201   a - 2 ,  201   a - 3 , and  201   a - 4  may be at respective corners of the module frame  201 , and the first to fourth supporting members  410 ,  420 ,  430 , and  440  may be at respective peripheries of the module frame  201 . For example, the first supporting member  410  may be between the first and fourth connection areas  201   a - 1  and  201   a - 4 , the second supporting member  420  may be between the first and second connection areas  201   a - 1  and  201   a - 2 , the third supporting member  430  may be between the second and third connection areas  201   a - 2  and  201   a - 3 , and the fourth supporting member  440  may be between the third and fourth connection areas  201   a - 3  and  201   a - 4 . Therefore, each of the first to fourth supporting members  410 ,  420 ,  430 , and  440  and each of the first to fourth connection areas  201   a - 1 ,  201   a - 2 ,  201   a - 3 , and  201   a - 4  may be alternately disposed along the peripheries of the module frame  201 , and may therefore surround the first and second vibration units  203 - 1  and  203 - 2  to be spaced apart therefrom and to both connect and fix the vibration generator  200 . 
       FIG. 10  is a cross-sectional view of an area A of  FIG. 5  in accordance with a second example embodiment of a vibration generator.  FIG. 11  is a plane view of elements of a vibration generator in a display apparatus of  FIG. 10 . 
     With reference to  FIGS. 10 and 11 , the sound-generating module  210  may include a module frame  201 , a vibration unit  203 , a plurality of connection members  205 , and the vibration unit  203  may include a magnet member  203   a , an upper plate  203   b , a side frame  203   c , a bobbin  203   d , a coil  203   e , an external frame  203   f , a damper  203   g , and a bobbin ring  203   h . The sound-generating module  210  may include first and second vibration units  203 - 1  and  203 - 2  that may be accommodated in one module frame  201 . Therefore, the module frame  201  may include first to fourth connection areas  201   a - 1 ,  201   a - 2 ,  201   a - 3 , and  201   a - 4 , and may include first and second vibration areas  201   b - 1  and  201   b - 2 . The supporting member  400  may include first and second supporting members  450  and  460 . 
     For example, the first vibration unit  203 - 1  may be at the left side of the module frame  201 , and the second vibration unit  203 - 2  may be at the right side of the module frame  201 . The first to fourth connection areas  201   a - 1 ,  201   a - 2 ,  201   a - 3 , and  201   a - 4  may be at respective corners of the module frame  201 . Therefore, the first to fourth connection areas  201   a - 1 ,  201   a - 2 ,  201   a - 3 , and  201   a - 4  may surround the first and second vibration areas  201   b - 1  and  201   b - 2  to be spaced apart therefrom. For example, the plurality of connection members  205  may fix the vibration generator  200  to the rear structure  300 , and the plurality of supporting members  400  may support the vibration generator  200  from the rear surface of the display panel  100 . Therefore, the first and second supporting member  450  and  460  and the plurality of connection members  205  may both connect and fix the vibration generator  200 . Therefore, the first and second supporting members  450  and  460  may stably fix the module frame  201  to the rear structure  300 , in spite of vibration of the first and the second vibration units  203 - 1  and  203 - 2 , thereby reducing or preventing a rolling phenomenon of the vibration generator  200  from occurring. 
     The supporting member  400  may be between the vibration unit  203  and the display panel  100 . For example, the supporting member  400  may be between the front surface of the upper plate  203   b  and the rear surface of the display panel  100  to maintain a distance between the display panel  100  and the vibration generator  200 . The supporting member  400  may attach or adhere the front surface of the upper plate  203   b  to the rear surface of the display panel  100 . The bobbin ring  203   h  may include a puncturing portion  203   h ′ at the center of the bobbin ring  203   h , and the supporting member  400  may pass through the puncturing portion  203   h ′ of the bobbin ring  203   h . Therefore, the bobbin ring  203   h  and bobbin  203   d  may surround the supporting member  400  to be spaced apart therefrom. The plurality of connection members  205  may fix the vibration generator  200  to the rear structure  300 , and the supporting member  400  may support the vibration generator  200  from the rear surface of the display panel  100 . Therefore, the display apparatus  10  may both connect and fix the vibration generator  200  through the plurality of connection members  205  and the supporting member  400 . Therefore, the supporting member  400  may reduce or prevent a rolling phenomenon of the vibration generator  200  from occurring, and may reduce or prevent sound distortion and deterioration phenomenon of the display apparatus  10  from occurring. 
     The supporting member  400  may include a material with lower elasticity than the upper plate  203   b  and the display panel  100 . When the supporting member  400  includes a material with lower elasticity than the upper plate  203   b  and the display panel  100 , the supporting member  400  may support the upper plate  203   b  from the rear surface of the display panel  100 , and may, at the same time, reduce or prevent vibration of the display panel  100  from being transferred to the upper plate  203   b . Therefore, the supporting member  400  may stably support the upper plate  203   b , may improve a vibration transmission characteristic of the vibration generator  200 , and may reduce or prevent a rolling phenomenon due to vibration of the vibration generator  200  from occurring. For example, the supporting member  400  may include a foam pad, e.g., including acrylic material, and an adhesive layer on each of front and rear surfaces of the foam pad, but embodiments are not limited thereto. 
     The sound-generating module  210  may include first and second vibration units  203 - 1  and  203 - 2  that may be accommodated in one module frame  201 , and the supporting member  400  may include first and second supporting members  450  and  460  between each of the first and second vibration units  203 - 1  and  203 - 2  and the display panel  100 . For example, the first supporting member  450  may be between the upper plate  203   b  of the first vibration unit  203 - 1  and the display panel  100 , and the second supporting member  460  may be between the upper plate  203   b  of the second vibration unit  203 - 2  and the display panel  100 . Therefore, the first and second supporting members  450  and  460  may reduce or prevent a rolling phenomenon from occurring by stably fixing the upper plate  203   b  of the first and second vibration units  203 - 1  and  203 - 2 , in spite of vibrations of the first and second vibration units  203 - 1  and  203 - 2 . 
     Therefore, the display apparatus  10  may reduce or prevent a rolling phenomenon that may occur while vibrating the display panel  100 , and may reduce or prevent sound distortion and deterioration phenomenon from occurring by providing the supporting member  400  between the display panel  100  and the vibration generator  200 . 
     A vibration generator according to an embodiment of the present disclosure may be applied to the vibration generator in the display apparatus. A display apparatus according to an embodiment of the present disclosure may be applied to 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, an electronic diary, electronic 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 navigator, a vehicle navigator, a signage device, a game device, a television, a notebook computer, a monitor, a camera, a camcorder, and home appliances. Embodiments are not limited to these examples. 
     A display apparatus according to an embodiment of the present disclosure will be described below. 
     According to an embodiment of the present disclosure, a display apparatus may include: a display panel configured to display an image by emitting light, a rear structure configured to support the display panel, a vibration generator configured to vibrate the display panel, and a supporting member between the display panel and the vibration generator, the supporting member being configured to maintain a distance between the display panel and the vibration generator. 
     For example, in the display apparatus according to an embodiment of the present disclosure, the rear structure may include a hole, and the vibration generator may include: a module frame in the hole in the rear structure, a vibration unit on the module frame, the vibration unit being configured to vibrate the display panel, and a plurality of connection members configured to connect the module frame to the rear structure. For example, in the display apparatus according to an embodiment of the present disclosure, the module frame may include: a plurality of connection areas in which the plurality of connection members may be disposed, and a vibration area in which the vibration unit may be disposed. 
     For example, in the display apparatus according to an embodiment of the present disclosure, the supporting member may be in an area other than the plurality of connection areas and the vibration area. For example, in the display apparatus according to an embodiment of the present disclosure, the plurality of connection areas may be at respective corners of the module frame. 
     For example, in the display apparatus according to an embodiment of the present disclosure, the vibration unit may include first and second vibration units in the module frame, the vibration area may include first and second vibration areas for respectively accommodating the first and second vibration units, and the supporting member may be in an area other than the plurality of connection areas and the first and second vibration areas among peripheries of the module frame. For example, in the display apparatus according to an embodiment of the present disclosure, the supporting member may be between the plurality of connection members among peripheries of the module frame. 
     For example, in the display apparatus according to an embodiment of the present disclosure, the plurality of connection members and the supporting member may surround and may be spaced apart from the vibration unit. For example, in the display apparatus according to an embodiment of the present disclosure, the supporting member may include a material having lower elasticity than the module frame and the display panel. 
     For example, in the display apparatus according to an embodiment of the present disclosure, the vibration unit may include: a magnet member on the module frame, an upper plate on the magnet member, a bobbin surrounding the magnet member and in contact with a rear surface of the display panel, a coil wound on an outer circumference of the bobbin, and a bobbin ring between the bobbin and the display panel. For example, in the display apparatus according to an embodiment of the present disclosure, the supporting member may be between the vibration unit and the display panel. 
     For example, in the display apparatus according to an embodiment of the present disclosure, the supporting member may be between a front surface of the upper plate and a rear surface of the display panel. For example, the display apparatus according to an embodiment of the present disclosure may further include a puncturing portion at the center of the bobbin ring, and the supporting member may pass through the puncturing portion. 
     For example, in the display apparatus according to an embodiment of the present disclosure, the bobbin may surround and may be spaced apart from the supporting member. For example, in the display apparatus according to an embodiment of the present disclosure, the vibration generator may include first and second vibration units in the module frame, and the supporting member may include first and second supporting members respectively between each of the first and second vibration units and the display panel. For example, in the display apparatus according to an embodiment of the present disclosure, the supporting member may include a material having lower elasticity than the upper plate and the display panel. 
     For example, the display apparatus according to an embodiment of the present disclosure may further include a partition member between the display panel and the rear structure, the partition member separating left and right areas of the display panel. For example, in the display apparatus according to an embodiment of the present disclosure, the partition member may include first to third partition members, the first partition member surrounding the left area of the display panel, the second partition member surrounding the right area of the display panel, and the third partition member surrounding a center area of the display panel. 
     For example, in the display apparatus according to an embodiment of the present disclosure, at least one side of four sides in each of the first and second partition members may include a bent portion, and the bent portion may have an inclined angle with respect to a horizontal direction of the display panel. For example, the display apparatus according to an embodiment of the present disclosure may further include an adhesive member between the periphery of the display panel and the periphery of the rear structure to adhere the display panel to the rear structure. 
     As described above, the display apparatus according to the present disclosure may have the following advantages. 
     The display apparatus according to an embodiment of the present disclosure may generate sound, such that a progressing direction of the sound may be toward the front portion of the display panel. Therefore, the image of the display apparatus may be matched with the position where the sound may be generated, whereby an immersion experience of a viewer who may view the image of the display apparatus may be improved. When the display apparatus according to an embodiment of the present disclosure includes the sound generator attached to the rear surface of the display panel, the speaker may not be provided separately, whereby freedom of degree in arrangement of the speaker and aesthetic design of the set apparatus may be improved. 
     The display apparatus according to an embodiment of the present disclosure may reduce or prevent a rolling phenomenon, which may occur when the vibration generator vibrates the display panel, from occurring. The display apparatus according to an embodiment of the present disclosure may reduce or prevent a rolling phenomenon of the vibration generator from occurring by providing the supporting member between the display panel and the vibration generator. The display apparatus according to an embodiment of the present disclosure may reduce prevent sound distortion and deterioration from occurring by reducing or preventing the rolling phenomenon of the vibration generator from occurring. 
     It will be apparent to those skilled in the art that various modifications and variations may be made in the present disclosure without departing from the technical idea or scope of the disclosure. Thus, it is intended that embodiments of the present disclosure cover the modifications and variations of the disclosure provided they come within the scope of the appended claims and their equivalents.