Display device and vehicle including the same

Abstract

The present disclosure provides a display device and a vehicle including the display device. The display device includes: a display panel configured to display an image; a front member on a front surface of the display panel; a driving circuit on a rear surface of the display panel and connected to the display panel; a support frame configured to surround side surfaces of the display panel and side surfaces of the driving circuit; a first support member supported by the support frame and on the rear surface of the display panel; and a vibration generation module supported by the first support member to vibrate the display panel.

Description

[0001] This patent application is a divisional application of a patent application with an application date of September 19, 2019, an application number of 201910887166.2, and an invention title of "Display Device and Vehicle Including the Same".

[0002] Cross - reference to related applications

[0003] This application claims the benefit and priority of Korean Patent Application No. 10 - 2019 - 0088598, filed on July 22, 2019, the entire contents of which are incorporated herein by reference. Technical Field

[0004] The present disclosure relates to a display device and a vehicle including the display device. Background Art

[0005] Display devices are provided in household appliances and electronic devices, such as televisions (TVs), monitors, laptop computers, smart phones, tablet computers, electronic notebooks, electronic boards, wearable devices, watch phones, portable information devices, navigation devices, and automotive control display devices, and are used as screens for displaying images.

[0006] A display device may include a display panel for displaying an image and a sound device for outputting sound associated with the image. However, in a general display device, since the sound output from the sound device may travel in the backward or downward direction of the display device, the sound quality may be degraded due to interference between the sound reflected from the wall and the ground. For this reason, it may be difficult to transmit accurate sound, and the viewer's immersive experience is reduced. Summary of the Invention

[0007] Accordingly, the present disclosure relates to a display device and a vehicle including the display device that substantially eliminate one or more problems caused by the limitations and disadvantages of the related art.

[0008] The inventors have recognized the problems of general display devices and have conducted various experiments such that when a user in front of the display panel is viewing an image, the traveling direction of the sound is toward the front surface of the display panel. Accordingly, the sound quality can be enhanced. Thus, through various experiments, the inventors have invented a display device that can generate sound traveling to the front area in front of the display panel, thereby enhancing the sound quality.

[0009] One aspect of the present disclosure is to provide a display device and a vehicle including the display device that outputs sound to the front area in front of the display panel.

[0010] Another aspect of the present disclosure is to provide a display device and a vehicle including the display device that improve sound quality and enhance the immersive experience of a viewer or listener.

[0011] Another aspect of the present disclosure is to provide a display device and a vehicle including the display device that improve sound performance and sound pressure characteristics.

[0012] Another aspect of the present disclosure is to provide a display device and a vehicle including the display device that prevent damage to a driving circuit caused by vibration of a display panel or minimize damage to the driving circuit caused by vibration of the display panel.

[0013] Other advantages and features of the present disclosure will be set forth in the following description, and in part will be apparent from the description, or may be learned by practice of the inventive concept provided herein. Other features and aspects of the inventive concept may be realized and obtained by means of the written description or inferences therefrom and the claims and the structures particularly pointed out in the drawings.

[0014] To achieve these and other aspects of the inventive concept implemented and broadly described herein, a display device is provided that includes: a display panel configured to display an image; a front member on a front surface of the display panel; a driving circuit on a rear surface of the display panel and connected to the display panel; a support frame configured to surround side surfaces of the display panel and the driving circuit; a first support member supported by the support frame and on the rear surface of the display panel; and a vibration generation module supported by the first support member to vibrate the display panel.

[0015] In another aspect, a display device is provided that includes: a display panel configured to display an image; a front member on a front surface of the display panel; a first support member on a rear surface of the display panel; a vibration generation module supported by the first support member to vibrate the display panel; and a printed circuit board between the rear surface of the display panel and the first support member.

[0016] On the other hand, a vehicle is provided, which includes: a dashboard including a first region facing the driver's seat, a second region facing the passenger's seat, and a third region between the first region and the second region; an instrument panel module including a first display in the first region of the dashboard; and an infotainment module including at least one of a second display in the third region of the dashboard, a third display in the second region of the dashboard, a fourth display on the rear surface of the driver's seat, and a fifth display on the rear surface of the passenger's seat, wherein at least one of the first to fifth displays includes a display device, and the display device includes: a display panel configured to display an image; a front member on the front surface of the display panel; a driving circuit on the rear surface of the display panel and connected to the display panel; a support frame configured to surround the side surfaces of the display panel and the driving circuit; a first support member supported by the support frame and on the rear surface of the display panel; and a vibration generating module supported by the first support member to vibrate the display panel.

[0017] On the other hand, a vehicle is provided, which includes: a dashboard including a first region facing the driver's seat, a second region facing the passenger's seat, and a third region between the first region and the second region; an instrument panel module including a first display in the first region of the dashboard; and an infotainment module including at least one of a second display provided in the third region of the dashboard, a third display in the second region of the dashboard, a fourth display on the rear surface of the driver's seat, and a fifth display on the rear surface of the passenger's seat, wherein at least one of the first to fifth displays includes a display device, and the display device includes: a display panel configured to display an image; a front member on the front surface of the display panel; a first support member on the rear surface of the display panel; a vibration generating module supported by the first support member to vibrate the display panel; and a printed circuit board between the rear surface of the display panel and the first support member.

[0018] The display device and the vehicle including the display device according to an embodiment of the present disclosure can output sound to the front region in front of the display panel, and can output sound with improved sound quality, performance, and sound pressure characteristics, thereby enhancing the immersive experience of the viewer or listener.

[0019] In addition, the display device and the vehicle including the display device according to an embodiment of the present disclosure can prevent damage to the driving circuit caused by the vibration of the display panel or minimize the damage to the driving circuit caused by the vibration of the display panel, thereby enhancing the reliability of the driving circuit.

[0020] In addition, a display device and a vehicle including the display device according to an embodiment of the present disclosure can increase the sound pressure level, sound quality, and reproduction band of the sound generated by the vibration of the display panel.

[0021] After studying the following drawings and detailed description, other systems, methods, features, and advantages will be apparent or will become apparent to those skilled in the art. It is intended that all such other systems, methods, features, and advantages be included within this specification, within the scope of the present disclosure, and be protected by the following claims. Any content in this section shall not be construed as a limitation on those claims. Other aspects and advantages are discussed in connection with embodiments of the present disclosure.

[0022] It should be understood that both the foregoing general description and the following detailed description of the present disclosure are exemplary and explanatory, and are intended to provide further explanation of the claimed present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings may be included to provide a further understanding of the present disclosure and are incorporated into and constitute a part of this application. The drawings illustrate embodiments of the present disclosure and, together with the specification, are used to explain the various principles of the present disclosure.

[0024] Figure 1 A display device according to an embodiment of the present disclosure is shown.

[0025] Figure 2 Shown is Figure 1 the rear surface of the display device shown in

[0026] Figure 3 is Figure 1 and Figure 2 an exploded perspective view of the display device shown in

[0027] Figure 4 is Figure 2 a cross-sectional view taken along line I-I' shown in

[0028] Figure 5 is Figure 2 a cross-sectional view taken along line II-II' shown in

[0029] Figure 6 is Figure 4 an enlarged view of portion 'A' shown in

[0030] Figure 7 is Figure 4 another enlarged view of portion 'A' shown in

[0031] Figure 8 is Figure 4Another enlarged view of portion 'A' shown in

[0032] Figure 9 is Figure 4 Another enlarged view of portion 'A' shown in

[0033] Figure 10 is an exploded view of a display device showing another embodiment according to the present disclosure.

[0034] Figure 11 shows a support frame and a holder respectively disposed on Figure 10 the rear surface of the display panel shown in

[0035] Figure 12 is a cross-sectional view taken along line III-III' shown in Figure 11

[0036] Figure 13 shows a display device according to another embodiment of the present disclosure.

[0037] Figure 14 is a cross-sectional view taken along line IV-IV' shown in Figure 13

[0038] Figure 15 shows a display device according to another embodiment of the present disclosure.

[0039] Figure 16 is a cross-sectional view taken along line V-V'' shown in Figure 15

[0040] Figure 17 shows a vehicle according to an embodiment of the present disclosure.

[0041] Figure 18 shows a vehicle according to another embodiment of the present disclosure.

[0042] Figure 19 shows a vehicle according to another embodiment of the present disclosure.

[0043] Figure 20 shows a vehicle according to another embodiment of the present disclosure.

[0044] Figure 21 shows a vehicle according to another embodiment of the present disclosure.

[0045] Figure 22 is a graph showing experimental results of sound pressure characteristics regarding a display device according to an embodiment of the present disclosure.

[0046] ​​​Throughout the drawings and the detailed description, unless otherwise described, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustration, and convenience, the relative dimensions and depictions of these elements may be exaggerated. Detailed Description

[0047] Reference will now be made in detail to embodiments of the present disclosure, examples of which may be shown in the drawings.

[0048] Advantages and features of the present disclosure and methods for realizing them will be clarified by the embodiments described below with reference to the drawings. However, the present disclosure may be implemented in different forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. Furthermore, the present disclosure is defined only by the scope of the claims.

[0049] The shapes, dimensions, ratios, angles, and quantities disclosed in the drawings used to describe the embodiments of the present disclosure are only examples, and thus, the embodiments of the present disclosure are not limited to the details shown. The same reference numerals always refer to the same elements. In the following description, when it is determined that a detailed description of related known technologies unnecessarily obscures the gist of the present disclosure, the detailed description will be omitted.

[0050] When using "comprising", "having", and "including" described in this specification, another part may be added unless "only" is used. A term in the singular form may include the plural form unless otherwise stated to the contrary.

[0051] When interpreting an element, the element is interpreted as including a range of errors or tolerances, although no explicit description of such a range of errors or tolerances is given. When describing a positional relationship, for example, when the positional relationship between two parts is described as, for example, "on", "above", "below", and "adjacent to", one or more other parts may be provided between the two parts unless more restrictive terms such as "exactly" or "direct(ly)" are used. When describing a temporal relationship, for example, when a temporal order is described as, for example, "after", "subsequently...", "next...", and "before", discontinuous cases may be included unless more restrictive terms such as "exactly", "immediately(ly)", or "direct(ly)" are used.

[0052] 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, 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.

[0053] 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 elements from other elements, and the basis, order, or quantity of the corresponding elements should not be limited by these terms. The expressions that an element “is connected,” “is coupled,” or “is bonded” to another element or layer mean that the element or layer can not only be directly connected or bonded to another element or layer, but also be indirectly connected or bonded to another element or layer by using one or more intermediate elements or layers “disposed” between the elements or layers, unless otherwise specified.

[0054] 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, the meaning of “at least one of the first item, the second item, and the third item” represents all items proposed from two or more of the first item, the second item, and the third item, as well as the combinations of the first item, the second item, or the third item.

[0055] In the description of the embodiments, when a structure is described as being “on or above” or “under or below” another structure, such description should be interpreted to include the case where the structures are in contact with each other and the case where a third structure is disposed therebetween. The dimensions and thicknesses of each element shown in the drawings are only for convenience of description, and the embodiments of the present disclosure are not limited thereto, unless otherwise specified.

[0056] The features of the various embodiments of the present disclosure may be partially or wholly coupled or combined with each other, and may operate differently from each other and be technically driven, as can be fully understood by those skilled in the art. The embodiments of the present disclosure may be executed independently of each other, or may be executed together in a mutually dependent relationship.

[0057] Hereinafter, embodiments of a display device and a vehicle including the display device according to the present disclosure will be described in detail with reference to the drawings. When adding reference numerals to the elements of each drawing, although the same elements are shown in other drawings, the same reference numerals may refer to the same elements. In the following description, when it is determined that a detailed description of related known functions or configurations unnecessarily obscures the present disclosure, the detailed description may be omitted. In addition, for convenience of description, the ratio of each element shown in the drawings is different from the actual ratio, and therefore, it is not limited to the ratio shown in the drawings.

[0058] When the driving circuit of the display device is directly provided on the rear surface of the display panel, the inventors have recognized the problem that the desired sound is not transmitted to the display panel due to the driving circuit in the case of transmitting the vibration of the vibration generating module to the display board. In addition, when the vibration generating module is applied to an automotive display device having a relatively small size, the inventors have recognized the problem that the driving circuit is damaged by the vibration of the vibration generating module. Therefore, the inventors have conducted various experiments to reduce the damage to the driving circuit caused by the vibration generating module. Through various experiments, the inventors have invented a display device having a new structure that prevents the driving circuit from being damaged by the vibration generating module, reduces the contact between the driving circuit and the display panel to reduce the vibration caused by the driving circuit, and enhances the sound of the vibration generating module.

[0059] Figure 1 A display device according to an embodiment of the present disclosure is shown.

[0060] Referring to Figure 1 , the display device according to an embodiment of the present disclosure can output a sound DVS (or a display vibration sound) according to the vibration of the display panel 200 for displaying an image. Therefore, the display device according to an embodiment of the present disclosure can use the display panel 200 as a diaphragm to output the sound DVS. Therefore, the display device can output the sound DVS to the front area FD in front of the screen of the display panel 200, thereby transmitting accurate sound, improving sound quality, and enhancing the immersive experience of the viewer or listener.

[0061] Figure 2 Shown is Figure 1 the rear surface of the display device shown in Figure 3 is Figure 1 and Figure 2 a perspective exploded view of the display device shown in Figure 4 is a cross-sectional view taken along line I-I' shown in Figure 2 Shown in Figure 5 is a cross-sectional view taken along line II-II' shown in Figure 2 Shown in

[0062] Referring to Figures 2 to 5 , the display device according to an embodiment of the present disclosure may include a front member 100, a display panel 200, a driving circuit 300, a second support member 400, a support frame 500, a first support member 600, and a vibration generating module 700.

[0063] The front member 100 may configure the foremost structure of the display device and may protect the screen of the display panel 200. The front member 100 may be disposed (or arranged) on the front surface of the display panel 200. For example, the front member 100 may cover (or overlay) the front surface of the display panel 200 to protect the display panel 200 from external impacts. In addition, the front member 100 may vibrate along with the vibration of the display panel 200 to generate sound DVS.

[0064] The front member 100 according to an embodiment of the present disclosure may include a transparent plastic material, a glass material, or a tempered glass material. For example, the front member 100 may include one of sapphire glass and diamond glass or a stacked structure thereof. As another example, the front member 100 may include a transparent plastic material such as polyethylene terephthalate (PET). The front member 100 may include tempered glass based on scratch resistance and transparency. For example, the front member 100 may be a "front structure", "front window", "cover window", "glass window", "cover screen", "screen cover", or "window glass", but the term is not limited thereto.

[0065] Referring to Figure 3 , the front member 100 may cover (or overlay) a non-display area other than the display area of the display panel 200. The front member 100 according to an embodiment of the present disclosure may include a transparent area 110 overlapping with the display area of the display panel 200 and a light-blocking area 130 overlapping with the non-display area of the display panel 200. The light-blocking area 130 may not only cover (or overlay) the non-display area of the display panel 200 but also cover (or overlay) a non-display area on the display device where no image is displayed.

[0066] The front member 100 according to an embodiment of the present disclosure may have a polygonal shape such as a rectangular (e.g., quadrilateral) shape or a square shape, or may have a non-polygonal shape including at least one side surface having a curved shape.

[0067] The display panel 200 may be disposed on the rear surface (or back surface) of the front member 100 and may display an image. The display panel 200 may act as a touch sensor for sensing a user touch applied to the front member 100. The display panel 200 may output sound DVS according to (or in response to) the vibration of the vibration generation module 700, or may generate haptic feedback (or haptic vibration) in response to a user touch.

[0068] The display panel 200 may be disposed on the rear surface of the front member 100 by a bonding process using a panel bonding member (or a transparent adhesive member). The panel bonding member may include a pressure-sensitive adhesive (PSA), an optically clear adhesive (OCA), or an optically clear resin (OCR), but is not limited thereto.

[0069] The display panel 200 may include a self-emitting display panel or a curved self-emitting display panel. For example, the display panel 200 may include a light-emitting display panel, a micro light-emitting diode display panel, a flexible light-emitting display panel, or a flexible micro light-emitting diode display panel, but is not limited thereto.

[0070] The display panel 200 according to an embodiment of the present disclosure may have a polygonal shape such as a rectangular (e.g., quadrilateral) shape or a square shape, or may have a non-polygonal shape including at least one side having a curved shape. The display panel 200 may have the same or different shape from the shape of the front member 100. For example, the front member 100 may have a rectangular (e.g., quadrilateral) shape, while the display panel 200 may have a rectangular (e.g., quadrilateral) shape with a size smaller than the size of the front member 100. As another example, the front member 100 may have a non-polygonal shape, while the display panel 200 may have a non-polygonal shape or a rectangular (e.g., quadrilateral) shape each with a size smaller than the size of the front member 100.

[0071] Referring to Figure 4 , the display panel 200 according to an embodiment of the present disclosure may include a pixel array substrate 210 including a pixel array layer 213 and a packaging layer 230 covering (or overlying) the pixel array layer 213, and the pixel array layer 213 has a plurality of pixels.

[0072] The pixel array substrate 210 may include a base substrate 211 and a pixel array layer 213 disposed on the base substrate 211.

[0073] The base substrate 211 may include a plastic material or a glass material.

[0074] The pixel array layer 213 may include a pixel array having a plurality of pixels disposed in a display area on the base substrate 211.

[0075] The plurality of pixels may be respectively disposed in a plurality of pixel regions defined by a plurality of pixel driving lines including a plurality of gate lines and a plurality of data lines. Each pixel of the plurality of pixels according to an embodiment of the present disclosure may include: a pixel circuit including at least two thin film transistors (TFTs) and at least one capacitor; and a light-emitting device layer that emits light using current provided from the pixel circuit.

[0076] The light-emitting device layer in each pixel of the plurality of pixels may include a first electrode connected to a corresponding pixel circuit, a light-emitting device on the first electrode, and a second electrode on (or connected to) the light-emitting device. For example, the light-emitting device may include an organic light-emitting layer or a quantum dot light-emitting layer. As another example, the light-emitting device may include a micro light-emitting diode.

[0077] The light-emitting device layer according to an embodiment of the present disclosure may have a top-emission structure (or front-emission structure) in which light emitted from the light-emitting device passes through the encapsulation layer 230 and is transmitted (or output) toward the front member 100. For example, in a light-emitting device layer based on a top-emission structure (or front-emission structure), the first electrode may be a reflective electrode, and the second electrode may be a transparent electrode. For example, the first electrode may include a light-reflective material, and the second electrode may include a light-transmissive material.

[0078] According to another embodiment of the present disclosure, the light-emitting device layer may have a bottom-emission structure (or bottom-emission structure) in which light emitted from the light-emitting device passes through the pixel array substrate 210 and is transmitted (or output) toward the front member 100. For example, in a light-emitting device layer based on a bottom-emission structure (or bottom-emission structure), the first electrode may be a transparent electrode, and the second electrode may be a reflective electrode. The first electrode may include a light-transmissive material, and the second electrode may include a light-reflective material. However, embodiments of the present disclosure are not limited thereto, and the light-emitting device layer may have a dual-emission structure.

[0079] Referring to Figure 4 , the pixel array substrate 210 may further include a gate driving circuit 215 disposed in a non-display area of the base substrate 211.

[0080] The gate driving circuit 215 may be disposed in a non-display area of the base substrate 211 and may be connected to a plurality of gate lines. The gate driving circuit 215 may be disposed in at least one of a left non-display area and a right non-display area of the base substrate 211. For example, the gate driving circuit 215 may be implemented by a shift register including a plurality of transistors in a non-display area through a process of forming a TFT in each of a plurality of pixel areas. In this case, the gate driving circuit 215 may be an in-built gate driving circuit or an in-built gate driver, but the term is not limited thereto.

[0081] Referring to Figures 3 to 5 , the encapsulation layer 230 may be on the pixel array substrate 210 to surround the pixel array layer 213, and thus, may prevent or block oxygen and / or water from penetrating into the light-emitting device of the pixel array layer 213.

[0082] The encapsulation layer 230 according to an embodiment of the present disclosure may have a multi-layer structure in which an organic material layer and an inorganic material layer are alternately stacked, but is not limited thereto. The inorganic material layer may prevent or block oxygen and / or water from penetrating into the light-emitting device. In addition, the organic material layer may have a thickness thicker than that of the inorganic material layer to cover particles occurring during manufacturing, but is not limited thereto.

[0083] The display panel 200 according to an embodiment of the present disclosure may further include a protection substrate on the encapsulation layer 230. The protection substrate (or encapsulation substrate) may be disposed on the front surface of the encapsulation layer 33 or coupled to the front surface of the encapsulation layer 230 through a filler or an adhesive. For example, when the light-emitting device layer has a top-emission structure, the protection substrate may include a transparent material. As another example, when the light-emitting device layer has a bottom-emission structure, the protection substrate may include a transparent material, an opaque material, or a metallic material. For example, when the light-emitting device layer has a top-emission structure, the protection substrate may be omitted.

[0084] The display panel 200 according to an embodiment of the present disclosure may further include an optical film.

[0085] The optical film may be a polarizing film that prevents reflection of external light or minimizes reflection of external light to enhance visibility and contrast of the display panel 200. The polarizing film may circularly polarize external light reflected by the TFTs and / or pixel driving lines on the pixel array substrate 210, thereby preventing reflection of external light or minimizing reflection of external light.

[0086] When the light-emitting device layer has a top-emission structure, the optical film according to an embodiment of the present disclosure may be disposed (or attached) on the upper surface (or front surface) of the encapsulation layer 230 through a transparent adhesive member. When the display panel 200 includes an optical film, the protection substrate may be omitted.

[0087] According to another embodiment of the present disclosure, when the light-emitting device layer has a bottom-emission structure, the optical film may be disposed (or attached) on the rear surface of the pixel array substrate 210 through a transparent adhesive member.

[0088] The display panel 200 according to an embodiment of the present disclosure may further include a touch electrode layer for sensing a user touch applied to the front member 100.

[0089] The touch electrode layer may include a plurality of touch electrodes for sensing a user touch. Each of the plurality of touch electrodes may serve as a touch sensor for sensing a user touch based on a mutual capacitance type or a self-capacitance type.

[0090] The touch electrode layer according to an embodiment may be implemented as a touch panel including a plurality of touch electrodes. For example, when the light-emitting device layer has a top-emission structure, an additional touch panel may be disposed on or coupled to the encapsulation layer 230 or the optical film, and when the light-emitting device layer has a bottom-emission structure, the additional touch panel may be disposed on or coupled to the rear surface of the pixel array substrate 210.

[0091] According to another embodiment of the present disclosure, the touch electrode layer may be directly on the encapsulation layer 230 based on an in-cell type. For example, when the light-emitting device layer has a top-emission structure, the in-cell type touch electrode layer may be directly on the front surface of the encapsulation layer 230.

[0092] The display panel 200 according to an embodiment of the present disclosure may further include a color filter layer on the encapsulation layer 230 to overlap with each of the plurality of pixels. The light-emitting devices in each of the plurality of pixels may emit white light. For example, when the light-emitting device layer has a top-emission structure, the color filter layer may be on the encapsulation layer 230. As another example, when the light-emitting device layer has a bottom-emission structure, the color filter layer may be in the pixel array layer 213.

[0093] The display panel 200 according to an embodiment of the present disclosure may further include a backplane 250.

[0094] The backplane 250 may have the same shape as the shape of the pixel array substrate 210. For example, when the light-emitting device layer has a top-emission structure, the backplane 250 may be on the rear surface (or the back side) of the pixel array substrate 210 through a transparent adhesive member. As another example, when the light-emitting device layer has a bottom-emission structure, the backplane 250 may be a protective substrate.

[0095] The backplane 250 may increase the stiffness of the display panel 200 and may dissipate heat generated in the display panel 200. The backplane 250 according to an embodiment of the present disclosure may include a metal material having high thermal conductivity. For example, the backplane 250 may include one of aluminum (Al), copper (Cu), silver (Ag), and magnesium (Mg) or an alloy thereof, or may include a stainless steel material. The backplane 250 may be a thermal diffusion sheet, a thermal diffusion layer, a thermal diffusion plate, a heat sink, a heat dissipation fin, a heat dissipation layer, or a heat dissipation plate, but the term is not limited thereto.

[0096] Referring to Figure 2 、 Figure 3 and Figure 5 and, the driving circuit 300 may be on the rear surface of the display panel 200 and may be connected to the display panel 200. For example, the driving circuit 300 may be connected to the pad portion 217 provided at the first peripheral portion (or one peripheral portion) of the display panel 200. The driving circuit 300 may be implemented to display an image on the plurality of pixels on the pixel array substrate 210 of the display panel 200. For example, the driving circuit 300 may display an image on the display area of the display panel 200. The driving circuit 300 may sense a user touch through a plurality of touch electrodes provided on the touch electrode layer of the display panel 200.

[0097] The driving circuit 300 according to an embodiment of the present disclosure may include a flexible circuit film 310, at least one data driving integrated circuit (IC) 320, and a printed circuit board (PCB) 330. For example, the driving circuit 300 may include a flexible circuit film 310, a plurality of data driving ICs 320, and a PCB 330.

[0098] The flexible circuit film 310 may be connected to a plurality of pad portions 217 disposed at a first peripheral portion (or one peripheral portion) of the pixel array substrate 210 of the display panel 200. The plurality of pad portions 217 may be arranged at a specific interval in the first direction X. Accordingly, the flexible circuit film 310 may be connected to the plurality of pad portions 217 arranged at a specific interval, and thus, may be arranged at a specific interval in the first direction X. For example, the flexible circuit film 310 may be disposed in the pad portions 217 in the display panel 200 by a film attachment process using an anisotropic conductive film.

[0099] The flexible circuit film 310 may surround the rear surface of the display panel 200. The flexible circuit film 310 may be bent (or folded) from the pad portions 217 toward the rear surface of the display panel 200. For example, the other side of the flexible circuit film 310 may be disposed at a first rear peripheral portion (or a first region) of the display panel 200. An intermediate portion (or a bent portion) between one side and the other side of the flexible circuit film 310 may be bent (or folded) to surround one surface of the display panel 200.

[0100] The plurality of data driving ICs 320 may be respectively mounted on the flexible circuit film 310 or may be respectively mounted on a plurality of flexible circuit films 310. Each of the plurality of data driving ICs 320 may convert input digital pixel data into an analog data signal based on a data control signal provided from the outside, and may provide the analog data signal to the corresponding pixel.

[0101] The PCB 330 can be commonly connected to the flexible circuit film 310. The PCB 330 can be electrically connected to the other side of the flexible circuit film 310 through a film attachment process using an anisotropic conductive film, and can be disposed on the first rear peripheral portion of the display panel 200 based on the bending of the flexible circuit film 310. The first rear peripheral portion of the display panel 200 can be an area of the rear surface of the display panel 200 where the flexible circuit film 310 and the PCB 330 are disposed. For example, the first rear peripheral portion of the display panel 200 can be a rear portion of the display panel 200. The PCB 330 can be between the rear surface of the display panel 200 and the first support member 600. The PCB 330 according to an embodiment of the present disclosure can be spaced apart from or floating from the rear surface of the display panel 200, and thus may not directly contact the rear surface of the display panel 200. For example, the rear surface of the PCB 330 can be placed so as not to contact the backplane 250 of the display panel 200.

[0102] For example, when the display device according to an embodiment of the present disclosure is applied to an in-vehicle display device whose size is relatively smaller than that of a display device for a large-screen television (TV), the size of the PCB 330 on the rear surface of the display panel 200 can correspond to about 20% to 30% of the size of the display panel 200, and the PCB 330 can be placed or disposed in the vibration area of the display panel 200 based on the vibration of the vibration generating module 700. Therefore, in the case where the PCB 330 is disposed to directly contact the rear surface of the display panel 200, when the vibration of the display panel 200 for sound DVS is directly transmitted to the PCB 330, the PCB 330 may be damaged or the detachment between the PCB 330 and the flexible circuit film 310 may occur due to the shaking vibration of the PCB 330, and the data driving IC 320 may be damaged due to the shaking vibration of the flexible circuit film 310 caused by the shaking vibration of the PCB 330. Therefore, in the display device according to an embodiment of the present disclosure, the PCB 330 can be between the rear surface of the display panel 200 and the first support member 600 so as not to directly contact the rear surface of the display panel 200. This can thereby prevent the transmission of the vibration of the display panel 200 to the PCB 330 or minimize the transmission of the vibration of the display panel 200 to the PCB 330, thereby preventing damage to the PCB 330 caused by the vibration of the display panel 200 or minimizing damage to the PCB 330 caused by the vibration of the display panel 200, preventing the detachment between the flexible circuit film 310 and the PCB 330 or minimizing the detachment between the flexible circuit film 310 and the PCB 330, and preventing damage to the data driving IC 320 or minimizing damage to the data driving IC 320.

[0103] The driving circuit 300 according to an embodiment of the present disclosure may include a control board 340, a signal transmission member 350, a timing control circuit 360, and a user connector 370.

[0104] The control board 340 may be disposed on the rear surface of the first support member 600 and may be connected to the PCB 330 through the signal transmission member 350. The control board 340 may be connected to a display host system (or a display driving system) through the user connector 370. The control board 340 may provide a timing synchronization signal and video data respectively provided from the display host system to the timing control circuit 360, and may provide digital pixel data output from the timing control circuit 360 to the data driving IC 320 through the signal transmission member 350, the PCB 330, and the flexible circuit film 310.

[0105] The control board 340 may further include a voltage generation circuit that generates various driving voltages required to drive the display device.

[0106] The timing control circuit 360 may be mounted on the control board 340 and may receive a timing synchronization signal and video data respectively provided from the display host system through the user connector 370. For example, the timing synchronization signal may include a vertical synchronization signal, a horizontal synchronization signal, a data enable signal, and a main clock signal.

[0107] The timing control circuit 360 may generate a gate control signal for controlling the driving timing of the gate driving circuit and a data control signal for controlling the driving timing of each of the plurality of data driving ICs 320 based on the timing synchronization signal. For example, the gate control signal may include at least one gate start signal and a plurality of gate shift clocks. The data control signal may include a source start signal, a source shift clock, and a source output enable signal.

[0108] The timing control circuit 360 may be mounted on the front surface of the PCB 330 instead of the control board 340. In addition, the voltage generation circuit may be mounted on the front surface of the PCB 330 instead of the control board 340. In this case, the control board 340 may be omitted.

[0109] The driving circuit 300 according to an embodiment of the present disclosure may further include a touch driving circuit connected to the touch electrode layer of the display panel 200.

[0110] The touch driving circuit may sense a user touch through each of a plurality of touch electrodes provided on the touch electrode layer to generate touch raw data, and may transmit coordinate information about the user touch to the display host system based on the generated touch raw data.

[0111] The display host system may include a main board, various circuits mounted on the main board, various storage media, peripheral devices, a keyboard, and a power supply device. The various circuits mounted on the main board may include a central control circuit for processing various information, an image processing circuit for processing data according to the control of the central control circuit, and an audio processing circuit for processing sound according to the control of the central control circuit. The display host system may process various information, generate a timing synchronization signal and video data to provide the timing synchronization signal and the video data to the control board 340, and may generate a drive signal including an audio signal or a haptic feedback signal to provide the drive signal to the control board 340. For example, the audio signal may be synchronized with the video data or may not be synchronized with the video data.

[0112] The display host system may execute an application associated with touch coordinates corresponding to coordinate information about a user touch provided from the touch driving circuit, or may execute a user interface based on a user's touch drawing. In addition, the display host system may generate a drive signal including a haptic feedback signal corresponding to coordinate information about a user touch provided from the touch driving circuit.

[0113] The second support member 400 may be disposed (or connected) between the rear surface of the display panel 200 and the driving circuit 300. The second support member 400 may be disposed (or connected) between the rear surface of the display panel 200 and the PCB 330 of the driving circuit 300. The second support member 400 may support the PCB 330 to separate the PCB 330 from the rear surface of the display panel 200. For example, the PCB 330 may be supported by the second support member 400 and may be disposed between the rear surface of the display panel 200 and the first support member 600.

[0114] The first surface (or front surface) of the second support member 400 may be disposed (or connected) on the rear surface of the display panel 200, and the second surface (or rear surface) of the second support member 400 opposite to the first surface (or front surface) may be disposed (or connected) on the rear surface of the PCB 330. For example, the first surface (or front surface) of the second support member 400 may be disposed (or connected) on the back plate 250 which is the last surface of the display panel 200. Accordingly, the PCB 330 may be supported by the second support member 400 and may be disposed (or connected) on the rear surface of the display panel 200 by using the second support member 400.

[0115] According to an embodiment of the present disclosure, the second support member 400 may include a vibration absorbing material that blocks or minimizes the transmission of vibrations of the display panel 200 to the PCB 330, or an elastic material that can be compressed to a certain extent. For example, the second support member 400 may include a double-sided tape or a double-sided foam tape each including a vibration absorbing layer (or an elastic layer), but is not limited thereto.

[0116] According to another embodiment of the present disclosure, the second support member 400 may include a double-sided conductive tape or a double-sided conductive foam tape. In this case, the PCB 330 may include a ground pattern exposed at its rear surface. For example, the second surface (or the rear surface) of the second support member 400 may be electrically connected to the ground pattern exposed at the rear surface of the PCB 330, and the backplane 250 of the display panel 200 may be electrically connected to the ground pattern exposed at the rear surface of the PCB 330. Accordingly, the backplane 250 of the display panel 200 may perform the heat dissipation function of the display panel 200 and the function of grounding the ground pattern of the PCB 330.

[0117] The support frame 500 may be on the rear surface of the front member 100. For example, the support frame 500 may surround the side surface of the display panel 200 or the side surface of the driving circuit 300. For example, the support frame 500 may surround the side surface of the display panel 200 and the side surface of the driving circuit 300. The support frame 500 may accommodate the driving circuit 300 of the display panel 200. The support frame 500 may have the same shape as the shape of the front member 100. The support frame 500 may be on the outermost surface of the display device and may be directly exposed to the outside of the display device. For example, the support frame 500 may be an "outermost frame", "outermost mold material", "outermost mechanism", "guide frame", "guide panel", "edge frame", or "molded frame", but the term is not limited thereto.

[0118] The support frame 500 may support the first support member 600 and may provide an air gap AG between the rear surface of the display panel 200 and the first support member 600, or may provide an accommodation space or a storage space for the display panel 200.

[0119] The support frame 500 may be disposed at the rear peripheral portion of the front member 100 through a first connection member (or a first coupling member) 501.

[0120] The first connecting member 501 may be disposed (or connected) between the rear peripheral portion of the front member 100 and the support frame 500, and thus, the support frame 500 may be disposed on the rear surface of the front member 100 (or connected to the rear surface of the front member 100). The first connecting member 501 according to an embodiment of the present disclosure may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but is not limited thereto. In the first connecting member 501 according to an embodiment of the present disclosure, the adhesive resin or the adhesive layer may include an acrylic-based or urethane-based adhesive material, but is not limited thereto. For example, in the first connecting member 501 according to an embodiment of the present disclosure, the adhesive resin or the adhesive layer may include a urethane-based adhesive material having relatively extensible characteristics unlike an acrylic-based adhesive material having relatively high hardness characteristics, for preventing the transmission of vibrations of the front member 100 to the support frame 500 or minimizing the transmission of vibrations of the front member 100 to the support frame 500.

[0121] The support frame 500 according to an embodiment of the present disclosure may include a frame portion 510 and a frame side portion 530.

[0122] The frame portion 510 may be disposed on the rear surface of the front member 100. For example, the frame portion 510 may include an opening 515 disposed at the rear peripheral portion of the front member 100 to overlap with the display panel 200. The frame portion 510 may be disposed at the rear peripheral portion of the front member 100. For example, the frame portion 510 may have the same shape as the front member 100, but is not limited thereto. For example, the frame portion 510 may have a polygonal shape or a non-polygonal shape that is the same as the shape of the front member 100.

[0123] The opening 515 of the frame portion 510 may be defined by the inner surface of the frame portion 510. The opening 515 of the frame portion 510 may accommodate the display panel 200. The opening 515 of the frame portion 510 may have the same shape as the display panel 200 and may have a size larger than the size of the display panel 200. The opening 515 of the frame portion 510 may have a polygonal shape or a non-polygonal shape that is the same as the shape of the display panel 200.

[0124] The frame side portion 530 may be disposed at the inner peripheral portion of the frame portion 510. For example, the frame side portion 530 may be vertically disposed at the inner peripheral portion of the frame portion 510 or protrude from the inner peripheral portion of the frame portion 510. The opening 515 may also be disposed in the frame side portion 530. For example, the frame portion 510 and the frame side portion 530 may each have a cross-sectional structure having an "┐┌" shape. The frame side portion 530 may surround the side surface of the display panel 200 and / or the driving circuit 300 of the display panel 200.

[0125] AsFigure 4 As shown, the support frame 500 according to an embodiment of the present disclosure may further include a plurality of connection portions 550 arranged at intervals on the outer sidewall of the frame side portion 530. Each of the plurality of connection portions 550 may be a structure for placing (or connecting to) the first support member 600 in the support frame 500 and may protrude from the outer sidewall of the frame side portion 530. For example, each of the plurality of connection portions 550 may include a hole. For example, the hole may be a threaded hole, but is not limited thereto.

[0126] Referring to Figures 2 to 5 , the first support member 600 may be on the rear surface of the display panel 200. For example, the first support member 600 may be supported by the peripheral portion of the support frame 500 and may cover (or overlie) the rear surface of the display panel 200. The first support member 600 may support or accommodate (or store) the vibration generating module 700. The first support member 600 may have the same shape as the shape of the display panel 200 and may be supported by the support frame 500.

[0127] The first support member 600 according to an embodiment of the present disclosure may serve as a support for supporting the vibration generating module 700, and thus, may include a metal material or a metal alloy material. For example, the first support member 600 may include one of materials such as Al, Al alloy, Mg alloy, iron-nickel (Fe-Ni) alloy, and stainless steel or its alloy, or may have a structure, but is not limited thereto. For example, the first support member 600 may have a thickness of 0.5 mm or more, but is not limited thereto. The first support member 600 may be a "support member", "rear cover", "back cover", or "rear member", but the term is not limited thereto.

[0128] According to another embodiment of the present disclosure, the first support member 600 may have a thickness of 0.5 mm or less to reduce the weight of the display device. In this case, since the stiffness of the first support member 600 is weak due to its relatively thin thickness compared to the front member 100, the first support member 600 may be distorted due to the vibration of the vibration generating module 700 caused by vibration. Due to this, the vibration of the vibration generating module 700 may not be normally transmitted to the front member 100. When the first support member 600 does not have sufficient stiffness, the inventors have recognized the problem that the first support member 600 absorbs a part of the energy of the vibration generating module 700. For example, since the first support member 600 absorbs the energy of the vibration generating module 700, insufficient vibration equal to the energy absorbed by the first support member 600 may be transmitted to the display panel 200. Therefore, due to the insufficient vibration of the vibration generating module 700, it may be difficult for the display panel 200 to output sufficient sound. For this reason, when the energy or vibration of the vibration generating module 700 is lost, the inventors have recognized the problem that it is difficult for the display panel 200 to output the desired sound. Therefore, the inventors have conducted various experiments to increase or strengthen the stiffness of the first support member 600. Another structure may be additionally provided in the first support member 600 to increase the stiffness of the first support member 600, but in this case, there may be a problem that the display device becomes thicker. Through various experiments, the inventors have provided a forming part (or accommodating part or stiffness strengthening structure) in the first support member 600 to increase or strengthen the stiffness of the first support member 600 without increasing the thickness of the display device. In addition, the display device according to an embodiment of the present disclosure may further include at least one reinforcing part for strengthening the stiffness of the first support member 600. For example, the at least one reinforcing part may further include a reinforcing bar or a stiffness strengthening structure. This will be described below.

[0129] The first support member 600 according to an embodiment of the present disclosure may include a first plate 610, a side portion 620, and a forming part 630.

[0130] The first plate 610 (or support plate) may be disposed on the rear surface of the display panel 200. For example, the first plate 610 may be disposed to face the rear surface (or back side) of the display panel 200 and may cover (or overlie) the rear surface of the display panel 200. The first plate 610 may be disposed at the frame side portion 530 of the support frame 500 through a plurality of first connection members 613 (or supported by the frame side portion 530 of the support frame 500). Each of the first connection members 613 may be a screw or a bolt, but is not limited thereto.

[0131] Each of the plurality of first connection members 613 can pass through a corresponding one of the plurality of holes 611 along the peripheral portion of the first plate 610 and can be disposed at (or connected to) a corresponding connection portion 550 of the plurality of connection portions 550 provided at the frame side portion 530 of the support frame 500, thereby placing (or connecting) the first plate 610 at the support frame 500. The first plate 610 can be disposed at (or connected to) the frame side portion 530 of the support frame 500 using the plurality of first connection members 613 or supported by the frame side portion 530 of the support frame 500. Accordingly, the first plate 610 and the support frame 500 can each include a four-surface support structure, and thus, the four surfaces (or upper, lower, left, and right surfaces) of each of the front member 100, the support frame 500, and the first support member 600 can have the same stiffness. Accordingly, since each of the first plate 610 and the first support member 600 has a four-surface support structure in which all of its four surfaces (or upper, lower, left, and right sides) are supported by the support frame 500, the four surfaces (or upper, lower, left, and right peripheral portions) of each of the front member 100, the support frame 500, and the first support member 600 can have the same stiffness. Accordingly, the main vibration mode of the display panel 200 can be set near the vibration generating module 700, and the vibration region of the vibration generating module 700 can match the maximum displacement position of the display panel 200, thereby enhancing the vibration efficiency of the vibration generating module 700 to enhance the sound pressure level, quality, and reproduction band of the sound generated by the vibration of the display panel 200.

[0132] The side portion 620 (or support side portion) can be bent from the peripheral portion of the first plate 610. The side portion 620 can increase the stiffness of the first support member 600 and can provide an accommodation (or storage) space on the first plate 610 for accommodating the frame side portion 530 of the support frame 500.

[0133] The side portion 620 can be on the rear surface of the support frame 500. For example, the side portion 620 can be disposed at the rear peripheral portion of the support frame 500 using a second connection member (or second coupling member) 621. For example, the side portion 620 can be disposed at or connected to the frame portion 510 of the support frame 500 through the second connection member 621.

[0134] The second connection member 621 can be between the side portion 620 and the frame portion 510 of the support frame 500, and can place the side portion 620 at the frame portion 510 of the support frame 500, and connect or couple to the frame portion 510 of the support frame 500. The second connection member 621 according to an embodiment of the present disclosure may include an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer, but is not limited thereto. The adhesive resin or the adhesive layer of the second connection member 621 according to an embodiment may include an acrylic-based or urethane-based adhesive material, but is not limited thereto. For example, the adhesive resin or the adhesive layer of the second connection member 621 may include a urethane-based adhesive material having relatively extensible characteristics unlike an acrylic-based adhesive material having relatively high hardness characteristics. Therefore, the urethane-based adhesive material can prevent the transmission of vibrations generated by the vibration generating module 700 from the first support member 600 to the support frame 500 or minimize the transmission of vibrations generated by the vibration generating module 700 from the first support member 600 to the support frame 500, but the embodiments of the present disclosure are not limited thereto.

[0135] The forming portion 630 may be provided (or connected) on the first plate 610. The forming portion 630 may support the vibration generating module 700. The forming portion 630 may be provided (or connected) to be recessed or protruded from the first plate 610. The forming portion 630 may increase or strengthen the stiffness of the first support member 600. For example, the forming portion 630 may be provided to be recessed from the first plate 610 to reduce or minimize an increase in the thickness (or height) of the display device caused by the thickness (or height) of the vibration generating module 700, and to thin the display device. However, the shape is not limited thereto.

[0136] The forming portion 630 may be recessedly provided (or connected) to have a quadrilateral shape on the front surface of the first plate 610 facing the rear surface of the display panel 200. The forming portion 630 may protrude from the first plate 610 in a backward direction opposite to the forward direction toward the rear surface of the display panel 200, and thus, may be recessedly provided (or connected) on the first plate 610. However, the embodiments of the present disclosure are not limited thereto. The forming portion 630 may be a "first forming portion", "groove portion", "recessed portion", "protruding portion", "engraved portion", "accommodating portion", or "stiffness reinforcing portion".

[0137] The forming part 630 according to an embodiment of the present disclosure may include a bottom surface 631 facing the rear surface of the display panel 200 and an inclined surface 633 between the first plate 610 and the bottom surface 631. The inclined surface 633 may provide an accommodation space (or a support space) on the bottom surface 631, and may increase or strengthen the stiffness of the first support member 600 and the stiffness of the first plate 610.

[0138] The first support member 600 according to an embodiment of the present disclosure may further include holes 640 in the forming part 630. The holes 640 may be formed in the forming part 630 to have dimensions and shapes each capable of embedding or accommodating a part of the rear surface of the vibration generating module 700 therein.

[0139] The holes 640 according to an embodiment of the present disclosure may include a first hole 641 in a first region of the forming part 630 and a second hole 643 parallel to the first hole 641 in a second region of the forming part 630.

[0140] The first hole 641 may be formed to pass through a first region of the forming part 630 that overlaps with a first rear region A1 of the display panel 200. For example, the first rear region A1 of the display panel 200 may be a region (or a left region) of the display panel 200 with respect to a center line (or a horizontal length center line) CL parallel to the first direction X of the display panel 200.

[0141] The second hole 643 may be formed to pass through a second region of the forming part 630 that overlaps with a second rear region A2 of the display panel 200. For example, the second rear region A2 of the display panel 200 may be another region (or a right region) of the display panel 200 with respect to the center line CL of the display panel 200.

[0142] As Figure 2 and Figure 3 shown, the first hole 641 and the second hole 643 according to an embodiment of the present disclosure may each have a circular shape, but are not limited thereto. For example, the first hole 641 and the second hole 643 may each have an elliptical shape or a polygonal shape, or may have a shape capable of embedding or accommodating a part of the rear surface of the vibration generating module 700 therein.

[0143] The first support member 600 according to an embodiment of the present disclosure may further include a cable hole 650 and a wire hole 660 in the forming part 630.

[0144] The cable hole 650 can be between the first hole 641 and the second hole 643 in the forming part 630. The cable hole 650 can have dimensions and a shape that each enable a signal transmission member 350 to pass through the cable hole 650 to electrically connect the PCB 330 to the control board 340. A part of the signal transmission member 350 can be connected to the PCB 330 between the rear surface of the display panel 200 and the first support member 600, and another part of the signal transmission member 350 can pass through the cable hole 650, can be unloaded to the rear surface of the first support member 600, and can be connected to the control board 340.

[0145] The wire hole 660 can be in the bottom surface 631 of the forming part 630 adjacent to the hole 640. The wire hole 660 can have dimensions and a shape that each enable a driving signal cable of the vibration generating module 700 disposed between the rear surface of the display panel 200 and the first support member 600 to be unloaded to the outside through the wire hole 660. The wire hole 660 according to an embodiment can include a first wire hole 661 in the bottom surface 631 of the forming part 630 adjacent to the first hole 641 and a second wire hole 663 in the bottom surface 631 of the forming part 630 adjacent to the second hole 643.

[0146] The first support member 600 according to an embodiment of the present disclosure can further include a second forming part 670.

[0147] The second forming part 670 according to an embodiment of the present disclosure can be on the first plate 610. For example, the second forming part 670 can protrude from a central part of the first plate 610 except for the peripheral part toward the rear surface of the display panel 200. The second forming part 670 can protrude to have an inclined surface from a central part of the first plate 610 except for the peripheral part toward the rear surface of the display panel 200, and thus, the stiffness of the first plate 610 can be strengthened. The second forming part 670 can support the forming part 630 (or the first forming part 630). Thus, the forming part 630 can be disposed (or connected) to be recessed from the second forming part 670. For example, the second forming part 670 can be an "auxiliary forming part", "groove part", "recessed part", "protruding part", "engraved part", "accommodating part", "storage part", or "stiffness strengthening part", but the term is not limited thereto. Thus, the stiffness of the first support member 600 can be increased due to the double strengthening structure including the forming part 630 and the second forming part 670.

[0148] According to another embodiment of the present disclosure, the second forming part 670 may protrude from the central part of the first plate 610 other than the peripheral part in a direction opposite to the direction toward the rear surface of the display panel 200, i.e., in a direction toward the rear surface (or back surface) of the first support 600, thereby strengthening the stiffness of the first plate 610. The forming part 630 may be recessed or protruded at the second forming part 670.

[0149] The first support 600 according to an embodiment of the present disclosure may further include a plurality of support parts 680. Each of the plurality of support parts 680 may be a "support pin", a "bracket", or a "support part", but the term is not limited thereto.

[0150] The plurality of support parts 680 may be on the rear surface of the first plate 610. For example, each of the plurality of support parts 680 may be along the rear peripheral part of the first plate 610. Each of the plurality of support parts 680 may be disposed at a support or a separate structure that supports the display device respectively. Therefore, the display device according to an embodiment of the present disclosure may use the plurality of support parts 680 to be supported by a support or a separate structure or be disposed at a support or a separate structure.

[0151] Referring to Figures 2 to 5 , the vibration generating module 700 may be disposed (or connected) between the first support 600 and the display panel 200. The vibration generating module 700 may be supported by the first support 600 and may vibrate the display panel 200. The vibration generating module 700 may vibrate based on a driving signal including a sound signal or a haptic feedback signal to directly vibrate the display panel 200, and thus, may output sound DVS based on the vibration of the display panel 200 or may generate haptic feedback (or haptic vibration) in response to a user touch.

[0152] The vibration generating module 700 may be implemented as a sound generating device including a coil (or voice coil) and a magnet. The vibration generating module 700 according to an embodiment may include a bobbin and a coil wound around the bobbin, and the bobbin may contact the rear surface of the display panel 200.

[0153] The vibration generating module 700 may include one sound generator or a plurality of sound generators 710 and 730. The sound generators 710 and 730 may be disposed in the forming part 630 of the first support 600 or accommodated (or stored) in the forming part 630 of the first support 600, and may vibrate the display panel 200. For example, each of the sound generators 710 and 730 may include a bobbin and a coil wound around the bobbin, and the bobbin may contact the rear surface of the display panel 200.

[0154] According to an embodiment of the present disclosure, the vibration generation module 700 may include a first sound generator 710 for vibrating a first rear surface of the display panel 200 and a second sound generator 730 for vibrating a second rear surface of the display panel 200.

[0155] The first sound generator 710 may be supported by or received (or stored) in a formed portion 630 in the first support member 600 and may be on the first rear surface of the display panel 200. The first sound generator 710 may vibrate based on a first driving signal including a sound signal or a haptic feedback signal to directly vibrate the first rear surface of the display panel 200, and thus, may generate a sound DVS based on the vibration of the display panel 200 or may generate a haptic feedback (or haptic vibration) in response to a user touch. For example, a part of the rear surface of the first sound generator 710 may be embedded or received in a first hole 641 in a first region of the formed portion 630, thereby reducing the thickness of the display device.

[0156] The second sound generator 730 may be supported by or received (or stored) in a second region of the formed portion 630 provided in the first support member 600 and may be on the second rear surface of the display panel 200. The second sound generator 730 may vibrate according to a second driving signal including a sound signal or a haptic feedback signal to directly vibrate the second rear surface of the display panel 200, and thus, may generate a sound DVS through the vibration of the display panel 200 or may generate a haptic feedback (or haptic vibration) in response to a user touch. For example, a part of the rear surface of the second sound generator 730 may be embedded or received (or stored) in a second hole 643 in the second region of the formed portion 630, thereby reducing the thickness of the display device.

[0157] The first driving signal and the second driving signal may be the same or different. For example, the first driving signal may include a left sound signal or a first haptic feedback signal corresponding to a first region (or left region) A1 of the display panel 200. The second driving signal may include a right sound signal or a second haptic feedback signal corresponding to a second region (or right region) A2 of the display panel 200.

[0158] Each of the first sound generator 710 and the second sound generator 730 may be provided at the first support member 600 and may be symmetric about a center line (or horizontal length center line) CL of the display panel 200, and may include substantially the same structure as each other. The first sound generator 710 and the second sound generator 730 may be a "vibration unit", "actuator", "exciter" or "transformer", but the term is not limited thereto.

[0159] Therefore, a display device according to an embodiment of the present disclosure may use the display panel 200 as a diaphragm for generating sound DVS to output sound to the front area FD in front of the display panel 200, thereby improving sound quality and enhancing the immersive experience of a viewer.

[0160] In a display device according to an embodiment of the present disclosure, the PCB 330 connected to the display panel 200 may be between the display panel 200 and the first support member 600 and may be spaced apart from the rear surface of the display panel 200, thereby preventing damage to the PCB 330 caused by vibration of the display panel 200 or minimizing damage to the PCB 330 caused by vibration of the display panel 200.

[0161] In addition, a display device according to an embodiment of the present disclosure may have a four-surface support structure in which all four surfaces (upper, lower, left, and right) of each of the front member 100 and the first support member 600 are supported by the support frame 500. A main vibration mode generated by vibration of the vibration generation module 700 may be set near the vibration generation module 700, and a vibration area of the vibration generation module 700 may match a maximum displacement position of the display panel 200, thereby enhancing the vibration efficiency of the vibration generation module 700 to enhance the sound pressure level, quality, and reproduction band of the sound generated by vibration of the display panel 200. For example, a display device according to an embodiment of the present disclosure may output sound of 100 Hz to 20 kHz at a sound pressure level of 65 dB or higher based on vibration of the display panel 200, and for example, may output sound of 150 Hz to 20 kHz at a sound pressure level of 75 dB or higher.

[0162] Figure 6 Yes Figure 4 It is an enlarged view of a part 'A' shown in and is a diagram for describing a first sound generator 710 of a vibration generation module 700 according to an embodiment of the present disclosure.

[0163] Referring to Figure 4 and Figure 6 According to an embodiment of the present disclosure, the first sound generator 710 of the vibration generation module 700 may be configured to vibrate the display panel 200 using a current of a driving signal including a sound signal or a haptic feedback signal, and the sound signal or the haptic feedback signal is applied to the first sound generator 710 based on Fleming's left-hand rule for motors respectively.

[0164] The first sound generator 710 according to an embodiment of the present disclosure may include a base plate 711, a magnet 712, a center rod 713, a bobbin 714, a coil 715, an edge plate 716, a damper 717, and a terminal portion 718.

[0165] The base plate 711 may be disposed at the first support member 600 and may be the body of the first sound generator 710. The base plate 711 may support the magnet 712, the center rod 713, and the edge plate 716. The base plate 711 may include a magnetic metal material such as iron (Fe). The base plate 711 may be a "lower plate", a "base frame", or a "yoke", but the term is not limited thereto.

[0166] The base plate 711 may include a groove portion that houses the magnet 712 and the bobbin 714. For example, the groove portion may be recessed from the upper surface of the base plate 711 to have a circular shape, but the shape is not limited thereto.

[0167] The base plate 711 according to an embodiment of the present disclosure may be on the bottom surface of the forming portion 630 of the first support member 600 using a fixing member such as an adhesive or a double-sided tape.

[0168] According to another embodiment of the present disclosure, a part of the rear surface of the base plate 711 may be embedded or housed in the first hole 641 in the forming portion 630 of the first support member 600. In this case, the base plate 711 according to another embodiment of the present disclosure may include a rear protruding portion 711a that is embedded in the first hole 641 provided in the forming portion 630 of the first support member 600. The rear protruding portion 711a may protrude from the base plate 711 toward the first support member 600 to include a groove portion that houses the magnet 712 and the bobbin 714, and may protrude to the outside of the rear surface of the rear cover 600 through the first hole 641 in the forming portion 630 of the rear cover 600 or may be exposed to the outside of the rear surface of the rear cover 600 through the first hole 641 in the forming portion 630 of the rear cover 600. Therefore, the heat generated due to the driving (or vibration) of the first sound generator 710 may be dissipated through the rear surface of the base plate 711 based on air cooling, and the rear surface of the base plate 711 protrudes to the outside of the rear surface of the rear cover 600 through the first hole 641 or is exposed to the outside of the rear surface of the rear cover 600.

[0169] According to another embodiment of the present disclosure, the base plate 711 may be disposed at the forming portion 630 of the first support member 600 using a plurality of second connection members 701 that pass through the bottom surface of the forming portion 630 of the first support member 600. The plurality of second connection members 701 may be respectively in a plurality of holes that pass through the bottom surface of the forming portion 630 in the corner portions of the base plate 711, and thus, the first sound generator 710 may be disposed at the forming portion 630 of the first support member 600.

[0170] The magnet 712, the center rod 713, the bobbin 714, and the coil 715 can each be a magnetic force circuit unit or a magnetic force vibration unit on the base plate 711 to vibrate the display panel 200.

[0171] The magnetic force circuit unit according to an embodiment of the present disclosure may have an external magnetic type structure or a dynamic type structure including a magnet 712 disposed outward from the coil 715, or may have an internal magnetic type structure or a micro type structure including a magnet 712 disposed inward from the coil 715. The first sound generator 710 including the magnetic force circuit unit having the internal magnetic type structure may have an overall small size and low magnetic leakage flux. The first sound generator 710 according to an embodiment of the present disclosure may have an external magnetic type structure or an internal magnetic type structure. Hereinafter, an example in which the first sound generator 710 has an internal magnetic type structure will be described.

[0172] The magnet 712 according to an embodiment of the present disclosure may be inserted into the groove portion of the base plate 711. The magnet 712 may be a permanent magnet having a cylindrical shape capable of inserting the bobbin 714. According to an embodiment of the present disclosure, the magnet 712 may be implemented with a sintered magnet such as barium ferrite, and the material of the magnet 712 may include Fe2O3, BaCO3, neodymium magnet, strontium ferrite (Fe 12 O 19 Sr), an alloy cast magnet including Al, nickel (Ni), and cobalt (Co), or one or more of them. For example, the neodymium magnet may be neodymium iron boron (Nd-Fe-B).

[0173] The bobbin 714 according to an embodiment of the present disclosure may be located on the base plate 711 to surround the magnet 712. The bobbin 714 may have a circular shape or an oval shape, but is not limited thereto. The oval shape may have an oval shape, a rectangular shape with rounded corners, or a non-circular curved shape having a width different from its height, but the embodiments are not limited thereto. For example, in the bobbin 714 having an oval shape, the ratio of the major axis diameter to the minor axis diameter may be set to 1.3:1 to 2:1. The bobbin 714 having an oval shape can improve the sound of the high vocal band more than the circular shape, and can reduce the generation of heat caused by vibration, and thus, can have excellent heat dissipation characteristics.

[0174] According to an embodiment of the present disclosure, the coil 715 may be wound to surround the outer peripheral surface of the bobbin 714 and may be supplied with a current (or voice current) of a driving signal from the outside. The coil 715 may move down or up together with the bobbin 714. The coil 715 may be a "voice coil", but the term is not limited thereto. When a current is applied to the coil 715, the entire portion of the bobbin 714 may vibrate up and down based on the applied magnetic field generated around the coil 715 and the external magnetic field generated around the magnet 712 according to Fleming's left hand rule for motors, and sound DVS or sound waves may be generated by the vibration of the display panel 200 caused by the vertical movement (or vibration) of the bobbin 714.

[0175] According to an embodiment of the present disclosure, when the coil 715 is wound to surround the outer peripheral surface of the bobbin 714, the heat generated in the coil 715 may be transferred to the bobbin 714, and the coil 715 may include a material having relatively good heat dissipation characteristics to reduce image quality defects that affect the display panel 200 due to the heat of the bobbin 714. In addition, since the bobbin 714 vibrates up and down, horizontal vibration may be generated due to the vertical vibration, and the horizontal vibration of the bobbin 714 may be affected by the weight of the bobbin 714. The weight of the bobbin 714 may be affected by the weight of the coil 715, and thus, when the weight of the coil 715 is reduced, the horizontal vibration of the bobbin 714 may be reduced. Therefore, considering the heat transferred to the bobbin 714 and the horizontal vibration of the bobbin 714, the coil 715 may have relatively good heat dissipation characteristics because its thermal conductivity is better than that of copper, which is a material of a general coil, and may include an Al material, which has relatively good heat dissipation characteristics and is relatively light in weight compared to copper.

[0176] In addition, in aluminum, since an oxide is formed in the air, welding may not be easy when manufacturing the first sound generator 710. Therefore, the coil 715 according to an embodiment of the present disclosure may include an Al layer (or a first metal layer) for heat dissipation and a metal covering layer (or a second metal layer) surrounding the Al layer. The metal covering layer may include one of Cu, Ag, and gold (Au). For example, the coil 715 may be an aluminum-clad copper wire covered with copper. The metal covering layer may be formed in a thin film type outside the first metal layer, and thus, may not greatly affect the increase in the weight of the coil 715. The weight of the coil 715 according to an embodiment of the present disclosure may be reduced by about 60% compared to a coil including only Cu or a Cu wire.

[0177] According to an embodiment of the present disclosure, the bobbin 714 may include the following structures: materials obtained by processing pulp or paper, Al or Mg or their alloys, or synthetic resins such as polyimide. For example, the bobbin 714 may be implemented with a polyimide film having relatively good heat dissipation characteristics and relatively light weight to prevent local image quality defects of the display panel 200 caused by heat generated in the coil 715.

[0178] The polyimide film may have physical properties that do not change within a wide temperature range of -273°C to 400°C, and may have heat resistance, electrical insulation, flexibility, and inhomogeneity. In addition, since the polyimide film has good thermal and mechanical stiffness, the polyimide film may enhance the reliability of the bobbin 714, and may reduce the generation of heat caused by the vibration of the bobbin 714 based on excellent heat dissipation characteristics. For example, the polyimide film may be KAPTON, and may be a condensation of 1,2,4,5-benzenetetracarboxylic dianhydride and 4,4'-diaminodiphenyl ether, but is not limited thereto.

[0179] The center rod 713 may be received in or inserted into the bobbin 714 and may guide the raising or lowering of the bobbin 714. For example, since the center rod 713 is inserted into the bobbin 714, the outer peripheral surface of the center rod 713 is surrounded by the bobbin 714. The center rod 713 may be a "height guide" or a "rod", but the term is not limited thereto.

[0180] The edge plate 716 may be disposed at the front peripheral portion of the base plate 711 and may support the damper 717. The edge plate 716 according to an embodiment of the present disclosure may be disposed at the front peripheral portion of the base plate 711 to have a certain height and the same shape as the shape of the bobbin 714. According to another embodiment of the present disclosure, the edge plate 716 may include a hollow portion disposed at the front peripheral portion of the base plate 711 to have a certain height and the same shape as the shape of the bobbin 714.

[0181] The damper 717 may be located between the edge plate 716 and the magnetic circuit unit. For example, the damper 717 may be located between the edge plate 716 and the bobbin 714. The damper 717 may be a "tripod", a "suspension", or an "edge", but the term is not limited thereto.

[0182] A part of the damper 717 according to an embodiment of the present disclosure may be connected to the edge plate 716, and another part of the damper 717 may be connected to the upper outer surface of the spool 714. The damper 717 may have a pleated structure between a part thereof and another part, and may contract and relax based on the vertical movement of the spool 714 to control the vibration of the spool 714. The damper 717 may be connected between the spool 714 and the edge plate 716 and may limit the vibration distance of the spool 714 with a restoring force. For example, when the spool 714 vibrates a certain distance or more or vibrates a certain distance or less, the spool 714 may be restored to the original position by the restoring force of the damper 717.

[0183] Since the first sound generator 710 is located between the display panel 200 and the first support member 600, the first sound generator 710 may have a relatively thin thickness to reduce the thickness of the display device or make the display device thinner. Thus, when the height (or thickness) of the spool 714 is reduced, the sound pressure level may decrease. Therefore, to solve the problem of the decrease in the sound pressure level due to the reduction in the height of the spool 714, the first sound generator 710 may be configured to have a wide area of the damper 717 disposed close to the spool 714. In the case where the area of the damper 717 increases, the space for disposing the wire for applying current to the coil 715 may be narrowed, resulting in interference between the wire and the damper 717. Therefore, the damper 717 may be formed of a conductor and may thus perform the function of the wire.

[0184] The damper 717 according to an embodiment of the present disclosure may include a metal material electrically connected to the coil 715. For example, the damper 717 may be formed of stainless steel or Cu, but is not limited thereto.

[0185] The terminal portion 718 may include a pair of terminals that are on a part of the base plate 711 and are electrically connected to the damper 717. The terminal portion 718 may overlap with the first wire hole 661 in the forming portion 630 of the first support member 600 and may be exposed outside the rear surface of the first support member 600. The pair of terminals in the terminal portion 718 may be electrically connected to the driving signal cable passing through the first wire hole 661, and the driving signal may be provided from the display host system through the driving signal cable.

[0186] The first sound generator 710 according to an embodiment of the present disclosure may further include a spool protection member 719.

[0187] The spool protection member 719 may be disposed (connected) on the front surface (or front end portion) of the spool 714, and may transmit the raising and lowering movement (or vibration) of the spool 714 to the rear surface of the display panel 200. The spool protection member 719 according to an embodiment of the present disclosure may have an annular shape on the front surface of the spool 714, a disk shape covering the entire front surface of the spool 714, or a notch shape surrounding the front surface and the upper outer surface of the spool 714, but the shape is not limited thereto. For example, the spool protection member 719 may be a "spool ring", but the term is not limited thereto.

[0188] The spool protection member 719 may be disposed (or coupled) on the rear surface of the display panel 200 using a first adhesive member. The first adhesive member may be located between the back plate 250 of the display panel 200 and the spool protection member 719. The adhesive member according to an embodiment of the present disclosure may include an adhesive or a double-sided tape, but is not limited thereto.

[0189] The second sound generator 730 of the vibration generating module 700 according to an embodiment of the present disclosure may be disposed at the first support member 600, and may be symmetric with respect to the center line (or horizontal length center line) CL of the display panel 200 with the first sound generator 710. The second sound generator 730 may include a structure substantially the same as that of the first sound generator 710, and thus, a repeated description thereof is omitted.

[0190] Figure 7 is Figure 4 Another enlarged view of the portion 'A' shown in and shows an example in which a blocking member is disposed between the display panel and the vibration generating module. Hereinafter, descriptions of the same elements except for the blocking member and related elements will be briefly given or omitted.

[0191] Referring Figure 7 , the display device according to an embodiment of the present disclosure may further include a blocking member 720 disposed between the display panel 200 and the vibration generating module 700. The first sound generator 710 according to an embodiment of the present disclosure may further include a blocking member 720.

[0192] The blocking or shielding member 720 (or the thermal blocking member or the thermal insulation member) may block or minimize the heat transfer to the display panel 200 generated in the first sound generator 710 due to the driving (or vibration) of the first sound generator 710, and thus, may prevent or minimize the local temperature rise of the display panel 200 caused by the heat generated in the first sound generator 710, thereby preventing image quality defects of the display panel 200 caused by a rapid temperature difference in the local area of the display panel 200 overlapping with the first sound generator 710. For example, the heat generated in the coil 715 etc. of the first sound generator 710 may not be transferred to the display panel 200 through the blocking member 720, and may be diffused and dissipated via the base plate 711 through the first support member 600 and the heat dissipation member 130, or may be dissipated to the first support member 600 based on air cooling through the rear surface (or back side) of the base plate 711. The blocking member 720 may be configured to have the same or similar size as the first sound generator 710, but is not limited thereto. For example, the blocking member 720 may be configured to have the same or similar size as the pixel array substrate 210.

[0193] For example, the blocking member 720 may have a film type or a plate type, each type including one of polyethylene, polyvinylpyrrolidone (PVP), polyethylene oxide (PEO), polyvinyl alcohol (PVA), polyvinyl acetate (PVAc), polylactic acid (PLA), polyamide (PA), polyester (PE), and polypropylene (PP), but is not limited thereto. As another example, the blocking member 720 may have a film type or a plate type, each type including one of rubber, silicon, fiber reinforced plastic, and composite resin including fiber reinforced plastic, but is not limited thereto. For example, the fiber reinforced plastic may include one of carbon fiber reinforced plastic, glass fiber reinforced plastic, and graphite fiber reinforced plastic or a combination thereof, but is not limited thereto.

[0194] The blocking member 720 according to an embodiment of the present disclosure may be located between the rear surface of the display panel 200 and the bobbin 714 of the first sound generator 710, and in this case, the bobbin protection member 719 may be omitted. For example, the blocking member 720 may be located on the bobbin 714 of the first sound generator 710, and may be disposed on the back plate 250 of the display panel 200 or connected (or coupled) to the back plate 250 of the display panel 200 through an adhesive member.

[0195] According to another embodiment of the present disclosure, the blocking member 720 may be located between the back plate 250 of the display panel 200 and the bobbin protection member 719 of the first sound generator 710. For example, the blocking member 720 may be disposed on (or connected to) the front surface of the bobbin protection member 719, and may be disposed on the back plate 250 of the display panel 200 by an adhesive member or connected (or coupled) to the back plate 250 of the display panel 200.

[0196] The blocking member 720 may be located between the display panel 200 and the second sound generator 730 of the vibration generating module 700. For example, the blocking member 720 may be located between the rear surface of the display panel 200 and the bobbin 714 of the second sound generator 730, and in this case, the bobbin protection member 719 of the second sound generator 730 may be omitted. As another example, the blocking member 720 may be located between the back plate 250 of the display panel 200 and the bobbin protection member 719 of the second sound generator 730.

[0197] The display device according to an embodiment of the present disclosure may include the blocking member 720 between the display panel 200 and the vibration generating module 700, and thus, it is possible to prevent or minimize a local temperature rise of the display panel 200 caused by heat generated in the vibration generating module 700, thereby preventing image quality defects of the display panel 200 caused by a rapid temperature difference in a local area of the display panel 200 overlapping with the vibration generating module 700.

[0198] Figure 8 is Figure 4 Another enlarged view of the portion 'A' shown in and shows an example in which the setting or connection (or coupling) structure between the vibration generating module and the first support member is modified. Hereinafter, descriptions of the same elements except for the setting or connection (or coupling) structure between the vibration generating module and the first support member will be briefly given or omitted.

[0199] Referring to Figure 8 , according to an embodiment of the present disclosure, the first sound generator 710 of the vibration generating module 700 may be disposed at the forming portion 630 of the first support member 600 using a plurality of second connection members 701, supported by the forming portion 630 of the first support member 600, or connected (or coupled) to the forming portion 630 of the first support member 600.

[0200] Each of the plurality of second connection members 701 can be connected to or disposed on the inner surface of the first support member 600 by the vibration generation module 700, and thus, the vibration generation module 700 can be supported by or connected (or coupled) to the first support member 600. For example, each of the plurality of second connection members 701 can be disposed on or connected to the bottom surface of the forming portion 630 through the peripheral portion of the base plate 711 of the first sound generator 710 using an internal connection method. Thus, the first sound generator 710 can be supported by or connected (or coupled) to the bottom surface of the forming portion 630.

[0201] The first support member 600 may further include a plurality of boss portions 635 on the bottom surface of the first forming portion 630. Each of the plurality of boss portions 635 may include a hole that protrudes from the bottom surface of the forming portion 630 that overlaps the peripheral portion of the base plate 711 and is connected to the corresponding second connection member 701 of the plurality of second connection members 701. For example, each of the plurality of boss portions 635 may be inserted into or received in the corresponding boss groove of the plurality of boss grooves provided at the peripheral portion of the base plate 711 of the first sound generator 710.

[0202] Similar to the first sound generator 710, the second sound generator 730 of the vibration generation module 700 according to an embodiment of the present disclosure can be disposed on the bottom surface of the forming portion using an internal connection method using connection members, supported by the bottom surface of the forming portion, or connected (or coupled) to the bottom surface of the forming portion.

[0203] The vibration generating module 700 according to an embodiment of the present disclosure may be connected (or coupled) to the first support member 600 according to an internal connection method using a plurality of second connection members 701 to increase the support force or coupling force between the vibration generating module 700 and the first support member 600, and when the vibration generating module 700 is being driven (or vibrating), noise caused by unwanted vibrations between the vibration generating module 700 and the first support member 600 may be prevented. In addition, since each of the plurality of second connection members 701 for supporting the vibration generating module 700 or coupling the vibration generating module 700 to the first support member 600 is not exposed at the rear surface (or back side) of the first support member 600, the display device according to an embodiment of the present disclosure may have a rear-clean back structure, thereby enhancing the aesthetic sense of the design. In addition, in the display device according to an embodiment of the present disclosure, the thickness of the vibration generating module 700 may be reduced, and thus, the vibration generating module 700 may be disposed between the display panel 200 and the first support member 600, thereby reducing the thickness of the display device. In addition, since the vibration generating module 700 according to an embodiment of the present disclosure is disposed between the display panel 200 and the first support member 600, holes for the vibration generating module 700 may not need to be provided on the rear surface of the first support member 600, thereby enhancing the degree of freedom based on the size or model of the display device.

[0204] Figure 9 Yes Figure 4 Another enlarged view of portion 'A' shown in and shows an example in which the setting or connection (or coupling) structure between the vibration generating module and the first support member is modified. Hereinafter, descriptions of the same elements except for the setting or connection (or coupling) structure between the vibration generating module and the first support member will be briefly given or omitted.

[0205] Refer to Figure 9 According to an embodiment of the present disclosure, the first sound generator 710 of the vibration generating module 700 may be disposed at the forming portion 630 of the first support member 600 using a two-way connection method, supported by the forming portion 630 of the first support member 600, or coupled to the forming portion 630 of the first support member 600.

[0206] The display device according to an embodiment of the present disclosure may further include a plurality of coupling members 703 that are fastened (connected) to each of the plurality of second connection members 701.

[0207] Each of the plurality of coupling members 703 may pass through the peripheral portion of the base plate 711 of the first sound generator 710 and may be disposed at or connected (or coupled) to a corresponding one of the plurality of second connecting members 701 of the plurality of second connecting members 701. For example, each of the plurality of coupling members 703 may be inserted into or received in a corresponding one of the plurality of second holes 711b provided in the peripheral portion of the base plate 711 of the first sound generator 710. Each of the plurality of coupling members 703 according to an embodiment may be a nut or a self-tightening (e.g., ) nut, and each nut includes a head that is larger than the diameter of the second hole 711b, but is not limited thereto.

[0208] Each of the plurality of second connecting members 701 may pass through the bottom surface of the formed portion 630 of the first support member 600 and may be connected or coupled to a corresponding one of the plurality of coupling members 703. Accordingly, the first sound generator 710 may be supported by or coupled to the bottom surface of the formed portion 630. Accordingly, the first sound generator 710 may be disposed on the bottom surface of the formed portion 630, supported by the bottom surface of the formed portion 630, or connected (or coupled) to the bottom surface of the formed portion 630 by using a bi-directional connection method of the second connecting members 701 and the coupling members 703.

[0209] The first support member 600 may further include a hole 642 provided in the bottom surface of the formed portion 630. The hole 642 may include a thread for connecting or fastening to the second connecting member 701 or may have a type of hole, but is not limited thereto.

[0210] Similar to the first sound generator 710, the second sound generator 730 of the vibration generation module 700 according to an embodiment of the present disclosure may be disposed on the bottom surface of the formed portion, supported by the bottom surface of the formed portion, or connected (or coupled) to the bottom surface of the formed portion according to a bi-directional connection method using the plurality of second connecting members 701 and the plurality of coupling members 703.

[0211] In a display device according to an embodiment of the present disclosure, since the vibration generation module 700 and the first support member 600 are connected or coupled to each other according to a bi-directional connection method using the second connecting members 701 and the coupling members 703, the supporting force or coupling force between the vibration generation module 700 and the first support member 600 may be increased, and noise caused by undesired vibration between the vibration generation module 700 and the first support member 600 may be prevented when the vibration generation module 700 is being driven (or vibrating).

[0212] Figure 10 is an exploded view of a display device showing another embodiment according to the present disclosure. Figure 11 Shows that both are provided in Figure 10 a support frame and a holder in the rear surface of the display panel shown in Figure 12 is a cross-sectional view taken along Figure 11 line III-III' shown in Figures 10 to 12 Shows Figures 1 to 9 an example in which the second support member of the display device shown in is modified. Hereinafter, descriptions of the same elements other than the second support member and related elements will be briefly given or omitted.

[0213] Referring to Figures 10 to 12 , in a display device according to another embodiment of the present disclosure, the second support member 400 may include a holder 410, and the holder 410 is disposed in the support frame 500 to support the PCB 330 of the driving circuit 300.

[0214] The holder 410 may separate the PCB 330 from the rear surface of the display panel 200 to prevent vibrations of the display panel 200 from being transmitted to the PCB 330. The PCB 330 may be disposed (or connected) at the holder 410. The first support member 600 may protect the PCB 330.

[0215] The holder 410 according to an embodiment of the present disclosure may include a second plate 411 and a pair of bridging portions 413.

[0216] The second plate 411 (or the holder plate) may be located between the rear surface of the display panel 200 and the PCB 330. The second plate 411 may be spaced apart from the rear surface of the display panel 200 by a certain distance. For example, the second plate 411 may have a size wider than the PCB 330.

[0217] The second plate 411 according to an embodiment of the present disclosure may be disposed on the rear surface of the PCB 330 through a second adhesive member 430.

[0218] The second adhesive member 430 may be disposed (or connected) between the PCB 330 and the rear surface of the second plate 411 facing the first support member 600. The second adhesive member 430 according to an embodiment of the present disclosure may include a vibration absorbing material or an elastic material that can be compressed to a certain extent, and the vibration absorbing material blocks or minimizes the transmission of vibrations of the display panel 200 to the PCB 330. For example, the second adhesive member 430 may include a double-sided tape or a double-sided foam tape, each including a vibration absorbing layer (or an elastic layer), but is not limited thereto.

[0219] A pair of bridging portions 413 may be bent from both sides of the second plate 411 and may be connected to the support frame 500 to support the second plate 411. For example, a pair of bridging portions 413 may be bent from both ends or both sides of the second plate 411 and may be connected to the support frame 500 to support the second plate 411. The pair of bridging portions 413 may be disposed at the frame side portion 530 of the support frame 500 using a plurality of third connection members 415. Each of the third connection members 415 may be a screw or a bolt, but is not limited thereto. Accordingly, the second plate 411 may be supported by the pair of bridging portions 413 connected to or disposed at the support frame 500, and may thus be spaced apart from the rear surface of the display panel 200 by a certain distance.

[0220] The second support member 400 according to an embodiment of the present disclosure may further include a buffer member 450.

[0221] The buffer member 450 may be disposed (or connected) between the second plate 411 and the rear surface of the display panel 200. When the display panel 200 is vibrating, the buffer member 450 may prevent physical contact between the rear surface of the display panel 200 and the PCB 330 and may block or minimize the transmission of the vibration of the display panel 200 to the PCB 330.

[0222] The buffer member 450 according to an embodiment of the present disclosure may be between the rear surface of the display panel 200 and the first support member 600. For example, the buffer member 450 may be disposed in parallel with two peripheral portions of the second plate 411 parallel to the longitudinal direction X of the second plate 411. The buffer member 450 according to an embodiment of the present disclosure may include a vibration absorbing material or an elastic material that can be compressed to a certain extent, and the vibration absorbing material blocks or minimizes the transmission of the vibration of the display panel 200 to the PCB 330. For example, the buffer member 450 may include a double-sided tape or a double-sided foam tape, each including a vibration absorbing layer (or an elastic layer), but is not limited thereto.

[0223] Figure 13 A display device according to another embodiment of the present disclosure is shown. Figure 14 is a cross-sectional view taken along Figure 13 line IV-IV' shown in Figure 13 and Figure 14 show an example of adding a balance member to the Figures 1 to 12 display device shown in Figure 13 shows from Figure 2 the rear surface of the display panel of the display device shown in

[0224] Removing the first support member and the vibration generating module fromFigure 13 and Figure 14 In a display device according to another embodiment of the present disclosure, the balance member 800 may be disposed on (or connected to) the rear surface of the display panel 200. For example, the balance member 800 may be in a third region in the rear region of the display panel 200 other than a second region overlapping with the vibration generating module 700 and a first region overlapping with the PCB 330 of the driving circuit 300. The balance member 800 may balance the vibration generated by the vibration of the vibration generating module 700 uniformly between the first region and the third region of the display panel 200. For example, the balance member 800 may prevent or minimize the vibration deviation in the first region where the PCB 330 is disposed and the third region where the PCB 330 is not disposed on the rear surface of the display panel 200.

[0225] For example, the PCB 330 (or the first PCB or the main PCB) may have a mass and thus may serve as a mass on the first region of the display panel 200. Therefore, when the display panel 200 is vibrating, a vibration deviation or a maximum vibration shift deviation may occur in the first region where the PCB 330 is disposed and the third region where the PCB 330 is not disposed. Therefore, the balance member 800 may serve as a mass on the third region where the PCB 330 is not disposed, and thus, the vibration balance between the first region where the PCB 330 is disposed and the third region where the PCB 330 is not disposed may be adjusted, thereby improving the vibration efficiency of the vibration generating module 700.

[0226] The balance member 800 according to an embodiment of the present disclosure may include a second PCB 810 and a third bonding member 830.

[0227] The second PCB 810 may be on the rear surface of the display panel 200. For example, the second PCB 810 may be in a third region in the rear region of the display panel 200 other than a second region overlapping with the vibration generating module 700 and a first region overlapping with the PCB 330 of the driving circuit 300. The second PCB 810 according to an embodiment of the present disclosure may include the same material as the material of the PCB 330 and may have a size larger than the size of the PCB 330. For example, the second PCB 810 may be another PCB, a dummy PCB, or an auxiliary PCB, but the term is not limited thereto.

[0228] The second PCB 810 according to an embodiment of the present disclosure may include: a main board portion 811 disposed at a second rear peripheral portion parallel to the first rear peripheral portion of the display panel 200; a first board extension portion 813 extending from a central portion of the main board portion 811 to the first rear peripheral portion of the display panel 200; a second board extension portion 815 extending from one peripheral portion of the main board portion 811 to the first peripheral edge portion of the display panel 200; and a third board extension portion 817 extending from the other peripheral portion of the main board portion 811 to the first rear peripheral portion of the display panel 200. For example, the second PCB 810 may have a "└┴┘" shape that faces the first rear peripheral portion from the second rear peripheral portion of the display panel 200.

[0229] The first board extension portion 813 and the second board extension portion 815 may be parallel to each other, with a setting area of the first sound generator 710 of the vibration generating module 700 between the first board extension portion 813 and the second board extension portion 815, and the first board extension portion 813 and the third board extension portion 817 may be parallel to each other, with a setting area of the second sound generator 730 of the vibration generating module 700 between the first board extension portion 813 and the third board extension portion 817.

[0230] A third adhesive member 830 may be disposed (or connected) between the rear surface of the display panel 200 and the second PCB 810. For example, the second PCB 810 may be disposed (or coupled to) the rear surface of the display panel 200 using the third adhesive member 830.

[0231] The third adhesive member 830 according to an embodiment of the present disclosure may include a vibration absorbing material or an elastic material that can be compressed to a certain extent to prevent or minimize noise generated due to vibration of the second PCB 810 caused by vibration passing through the display panel 200. For example, the third adhesive member 830 may include a material for blocking or minimizing the transmission of vibration of the display panel 200 to the PCB 330. For example, the third adhesive member 830 may include a double-sided tape or a double-sided foam tape, each including a vibration absorbing layer (or an elastic layer), but is not limited thereto.

[0232] Therefore, a display device according to another embodiment of the present disclosure may have the same effect as the display device shown in Figures 1 to 12 and may achieve vibration balance of the display panel 200 using the balance member 800, thereby improving the vibration efficiency of the vibration generating module 700 and increasing the reproduction band and sound pressure level of the sound generated by the vibration of the display panel 200.

[0233] As another example, as in Figure 11 andFigure 12 As shown in Figure 12 , the balance member 800 according to an embodiment of the present disclosure can be applied to a display device according to another embodiment of the present disclosure.

[0234] Figure 15 A display device according to another embodiment of the present disclosure is shown. Figure 16 is a cross-sectional view taken along Figure 15 the line V-V' shown in Figure 15 . Figure 15 and Figure 16 show an example in which the configuration of the vibration generation module provided in the Figures 1 to 14 display device shown in Figures 1 to 14 is modified. Hereinafter, descriptions of the same elements other than the vibration generation module and related elements will be briefly given or omitted.

[0235] Referring to Figure 15 and Figure 16 , in a display device according to another embodiment of the present disclosure, the vibration generation module 700 may include a first sound generator 710, a second sound generator 730, a third sound generator 750, and a fourth sound generator 770.

[0236] The first sound generator 710 and the second sound generator 730 may be substantially the same as the first sound generator 710 and the second sound generator 730 of the above-described display device. Hereinafter, therefore, the same reference numerals denote the same elements, and repeated descriptions thereof will be omitted or briefly given.

[0237] Each of the first sound generator 710 and the second sound generator 730 according to an embodiment of the present disclosure may vibrate the display panel 200 to output a sound of a first sound band. The sound of the first sound band according to the embodiment may be output from the central portion of the display panel 200 to the front area with respect to the display panel 200. The sound of the first sound band may have a frequency of a low sound band. For example, the low sound band may be less than 200 Hz, but is not limited thereto and may be less than 3 kHz.

[0238] The third sound generator 750 may vibrate the third rear surface of the display panel 200 to output a sound of a second sound band that is higher than the sound of the first sound band. The fourth sound generator 770 may vibrate the fourth rear surface of the display panel 200 to output the sound of the second sound band. For example, the third rear surface of the display panel 200 may include a third rear peripheral portion, a left peripheral portion, or one peripheral portion. The fourth rear surface of the display panel 200 may include a fourth rear peripheral portion, a right peripheral portion, or another peripheral portion.

[0239] The sound of the second sound generating band according to an embodiment of the present disclosure may be output from the peripheral portion of the display panel 200 to the front area. The sound of the second sound generating band may have a frequency of a mid-high sound band or a high sound band. For example, the mid sound band may be 200 Hz to 3 kHz, but is not limited thereto, and may be 3 kHz to 5 kHz. The high sound band may be 3 kHz or higher, but is not limited thereto, and may be 5 kHz or higher.

[0240] The third sound generator 750 may output a first sound (or left sound) together with the first sound generator 710, and the fourth sound generator 770 may output a second sound (or right sound) together with the second sound generator 730. The third sound generator 750 and the fourth sound generator 770 may supplement or enhance the sound of each of the first sound generator 710 and the second sound generator 730 (e.g., the sound of the high sound band). In addition, each of the first sound generator 710, the second sound generator 730, the third sound generator 750, and the fourth sound generator 770 may output multi-channel stereo or stereo.

[0241] The third sound generator 750 according to an embodiment of the present disclosure may include a first piezoelectric device 751 disposed at a third rear peripheral portion of the display panel 200.

[0242] The first piezoelectric device 751 may include a piezoelectric material layer having a piezoelectric effect.

[0243] The piezoelectric material layer may include a piezoelectric material that vibrates with an electric field. Here, the piezoelectric material may have the following characteristics: when pressure is applied to the crystal structure due to an external force or distortion occurs in the crystal structure, a potential difference is caused by dielectric polarization based on the relative position change of positive (+) ions and negative (-) ions, and vibration occurs due to the electric field based on the applied voltage.

[0244] The piezoelectric material layer according to an embodiment of the present disclosure may include a piezoelectric material containing a polymer material, a piezoelectric material containing a thin film material, a piezoelectric material containing a composite material, or a piezoelectric material containing a single crystal ceramic or a polycrystalline ceramic. Examples of the piezoelectric material containing a polymer material may include polyvinylidene fluoride (PVDF), polyvinylidene fluoride trifluoroethylene P(VDF-TrFe), and P(VDF-TeFE). Examples of the piezoelectric material containing a thin film material may include ZnO, CdS, and AlN. Examples of the piezoelectric material containing a composite material may include PZT-PVDF, PZT silicone rubber, PZT epoxy resin, PZT foam polymer, and PZT foam polyurethane. Examples of the piezoelectric material containing a single crystal ceramic may include α-AlPO4, α-SiO2, LiNbO3, Tb2(MoO4)3, Li2B4O7, and ZnO. Examples of the piezoelectric material containing a polycrystalline ceramic may include PZT-based materials, PT-based materials, PZT composite perovskite-based materials, and BaTiO3.

[0245] As another example, the first piezoelectric device 751 may include a plurality of first portions and a plurality of second portions, with each second portion disposed between two adjacent first portions of the plurality of first portions. Each of the plurality of first portions may be formed of a ceramic-based material for generating relatively high vibrations, or may be formed of a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure may have a piezoelectric effect and a converse piezoelectric effect, and may be a plate-like structure with an orientation. As another example, the inorganic material portion disposed in each of the plurality of first portions may include one or more of lead (Pb), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni), and niobium (Nb), but is not limited thereto. As another example, the inorganic material portion disposed in each of the plurality of first portions may include a lead zirconate titanate (PZT)-based material having lead (Pb), zirconium (Zr), and titanium (Ti), or may include a lead nickel niobate zirconate (PZNN)-based material having lead (Pb), zinc (Zn), nickel (Ni), and niobium (Nb), but is not limited thereto. In addition, the inorganic material portion may include at least one of CaTiO3, BaTiO3, and SrTiO3, each of which does not include Pb, but is not limited thereto.

[0246] The organic material portion disposed in each of the plurality of second portions may include an organic material or an organic polymer, each of which has a flexible property compared to the inorganic material portion of each of the first portions. For example, each of the plurality of second portions may include an organic material, an organic polymer, an organic piezoelectric material, or an organic non-piezoelectric material. For example, each of the plurality of second portions may be an adhesive portion, an elastic portion, a bending portion, a damping portion, or a flexible portion, but is not limited thereto.

[0247] The organic material portion according to an embodiment of the present disclosure may include at least one of an organic piezoelectric material and an organic non-piezoelectric material. The organic material portion including the organic piezoelectric material may absorb an impact applied to the inorganic material portion (or the first portion), and thus, may enhance the overall durability of the first piezoelectric device 751 and may provide piezoelectric characteristics corresponding to a certain level or higher. The organic piezoelectric material according to an embodiment may be an organic material having an electroactive material. For example, the organic piezoelectric material may include at least one of polyvinylidene fluoride (PVDF), β-polyvinylidene fluoride (β-PVDF), and polyvinylidene fluoride trifluoroethylene (PVDF-TrFE), but is not limited thereto. The organic material portion including the organic non-piezoelectric material may include a curable resin composition and an adhesion having the curable resin composition, and thus, may absorb an impact applied to the inorganic material portion (or the first portion), thereby enhancing the overall durability of the first piezoelectric device 751. The organic non-piezoelectric material according to an embodiment of the present disclosure may include at least one of an epoxy-based polymer, an acryloyl-based polymer, and a silicon-based polymer, but is not limited thereto. Accordingly, the sound generator may be configured with a plurality of first portions and a plurality of second portions, each second portion being disposed between two adjacent first portions of the plurality of first portions, thereby providing a vibration generation module for enhancing piezoelectric characteristics, stiffness, and flexibility. Accordingly, a vibration generation module having enhanced piezoelectric characteristics, stiffness, and flexibility of the sound generator may be configured, and thus, may be applied to a flexible display device (e.g., an automotive display device). For example, the flexible display device may be a foldable display device, a bendable display device, a wearable display device, and a rollable display device, but is not limited thereto.

[0248] According to an embodiment of the present disclosure, electrodes may be located on each of the upper surface and the lower surface of the first piezoelectric device 751. The electrodes may include one or more of carbon (C), palladium (Pd), iron (Fe), tin (Sn), aluminum (Al), nickel (Ni), platinum (Pt), gold (Au), silver (Ag), copper (Cu), titanium (Ti), and molybdenum (Mo) or an alloy thereof, but is not limited thereto. For example, the electrodes may include indium tin oxide (ITO), indium zinc oxide (IZO), or a Mo-Ti alloy, but is not limited thereto.

[0249] The first piezoelectric device 751 according to an embodiment of the present disclosure may be disposed on (or connected to) a third rear peripheral portion of the display panel 200 through a third connection member 753 (or a third coupling member). The third connection member 753 may be a double-sided tape or a naturally curable adhesive, but is not limited thereto.

[0250] The third sound generator 750 according to an embodiment of the present disclosure may further include a first protection member 755 disposed on the rear surface of the first piezoelectric device 751. For example, the first protection member 755 may be located on the rear surface of the electrode on the rear surface of the first piezoelectric device 751. As another example, the first protection member 755 may be on each of the upper and lower surfaces (or rear surface) of the first piezoelectric device 751.

[0251] The first protection member 755 may have a size wider than that of the first piezoelectric device 751 and may be on the rear surface of the first piezoelectric device 751. The first protection member 755 may prevent the first piezoelectric device 751 from being damaged by electrical shocks such as static electricity and / or physical shocks. The first protection member 755 according to an embodiment of the present disclosure may include a cross-sectional insulating tape or an insulating cross-sectional foam tape, each having an adhesive layer on the rear surface of the first piezoelectric device 751. For example, the first protection member may be a polyimide (PI) film, a polyethylene terephthalate (PET) insulating tape, or a polyvinyl chloride (PVC) insulating tape, but is not limited thereto.

[0252] The fourth sound generator 770 may include a second piezoelectric device 771, which is disposed on (or connected to) the fourth rear peripheral portion of the display panel 200 through a fourth connection member 773. In addition, the fourth sound generator 770 may further include a second protection member 775 disposed on (or connected to) the rear surface of the second piezoelectric device 771. Except that the second piezoelectric device 771 is disposed on (or connected to) the fourth rear peripheral portion of the display panel 200 through the fourth connection member 773, the fourth sound generator 770 having such a configuration may be substantially the same as the third sound generator 750, and thus, its repeated description is omitted.

[0253] Therefore, a display device according to another embodiment of the present disclosure may have the same effect as the Figures 1 to 9 display device shown. In addition, the display device according to an embodiment of the present disclosure may output the sound of the first sound band based on the vibration of the display panel 200, and the vibration of the display panel 200 responds to the vibration of each of the first sound generator 710 and the second sound generator 730 of the coil type having relatively good low sound output characteristics. In addition, the display device may output the sound of the second sound band to the front area in front of the display panel 200 based on the vibration of the display panel 200, and the vibration of the display panel 200 responds to the vibration of each of the third sound generator 750 and the fourth sound generator 770 of the piezoelectric type having relatively good high sound output characteristics, so as to output sound with a wide sound band and output stereo or output multi-channel stereo.

[0254] As another example, the third sound generator 750 and the fourth sound generator 770 according to an embodiment of the present disclosure can be identically applied to Figures 10 to 12 the display device shown in Figure 13 and Figure 14 the display device shown in, and a balance member can be provided in a region of the rear area of the display panel 200 other than the regions where the third sound generator 750 and the fourth sound generator 770 are provided.

[0255] Figure 17 FIG. shows a vehicle according to an embodiment of the present disclosure and shows an example of applying the display device according to the embodiment shown in Figures 1 to 16 to the vehicle.

[0256] Referring to Figure 17 , a vehicle according to an embodiment of the present disclosure may include an instrument panel DB, an instrument panel module IPM, and an infotainment module ITM.

[0257] The instrument panel DB may include a first region DA facing the driver's seat, a second region PA facing the passenger's seat, and a third region MA between the first region DA and the second region PA.

[0258] The instrument panel module IPM may include a first display DIS1 provided in the first region DA of the instrument panel DB. The instrument panel module IPM may be an "instrument panel module" or an "instrument cluster", but the term is not limited thereto.

[0259] The first display DIS1 may provide various information to the driver, such as vehicle state information and driving-related information, such as the driving time, speed, fuel amount, and revolutions per minute (RPM) of the vehicle.

[0260] The first display DIS1 may include Figures 1 to 16 the display device shown in, and thus, a repeated description thereof is omitted. Therefore, the first display DIS1 may display an image corresponding to vehicle driving information provided from a vehicle host system on the display panel. In addition, the first display DIS1 may output, in response to vibration of the vibration generating module, a sound generated by vibration of the display panel to the driver's seat based on a sound driving signal provided from the vehicle host system.

[0261] The infotainment module ITM (or infotainment system) may include a second display DIS2 provided in the third region MA (or center instrument panel) of the instrument panel DB.

[0262] The second display DIS2 may be connected to a navigation system and vehicle convenience systems such as an audio system, an air conditioning system, and a multimedia system, each of which is equipped in a vehicle, and may display navigation information provided from the navigation system and control icons for controlling the corresponding vehicle convenience system. In addition, the second display DIS2 may provide a sound corresponding to a sound signal provided from the audio system and / or the multimedia system to a driver or a passenger.

[0263] The second display DIS2 may include Figures 1 to 16 the display device shown in, and thus, a repeated description thereof is omitted. Accordingly, the display panel of the second display DIS2 may display navigation information provided from the navigation system and control icons for controlling the corresponding vehicle convenience system. In addition, the second display DIS2 may directly output a sound generated from the display panel based on a sound signal provided from the audio system and / or the multimedia system, and the display panel vibrates by vibration of a vibration generation module. In addition, the second display DIS2 may sense a user touch through a touch electrode layer provided in the display panel to perform an interface with the user.

[0264] The second display DIS2 may have a length that expands toward a second area PA of the instrument panel DB. For example, the second display DIS2 may be disposed in a third area MA and the second area PA of the instrument panel DB.

[0265] Accordingly, a vehicle according to an embodiment of the present disclosure may include an instrument panel module IPM including a first display DIS1 that applies the display device according to the embodiment shown in Figures 1 to 16 and thus, may output a sound generated by vibration of the first display DIS1 to a face of a driver to directly transmit the sound to the driver's ear, thereby transmitting a sound substantially similar to an original sound to the driver.

[0266] In addition, a vehicle according to an embodiment of the present disclosure may include an infotainment module ITM including a second display DIS2 that applies the display device according to the embodiment shown in Figures 1 to 16 and thus, may output a sound generated by vibration of the second display DIS2 to an ear of a driver and / or a passenger, thereby transmitting a sound substantially similar to an original sound to the driver and / or the passenger.

[0267] In addition, a vehicle according to an embodiment of the present disclosure can use each of a first display DIS1 of an instrument panel module IPM and a second display DIS2 of an infotainment module ITM as a speaker for outputting sound, and can transmit 2-channel stereo sound to a driver and / or a passenger by using sound generated by vibration of each of the first display DIS1 and the second display DIS2.

[0268] Figure 18 A vehicle according to another embodiment of the present disclosure is shown and shows Figure 17 an example in which the structure of the infotainment module shown in is modified. Hereinafter, descriptions of the same elements except for the infotainment module and related elements will be briefly given or omitted.

[0269] Refer to Figure 18 , an infotainment module ITM according to an embodiment of the present disclosure can be installed to be raised or lowered in a third area MA of an instrument panel DB. The infotainment module ITM can be received in the instrument panel DB based on power-off of the vehicle or manipulation by a passenger, and can protrude from the inside of the instrument panel DB based on power-on of the vehicle or manipulation by a passenger.

[0270] An infotainment module ITM according to an embodiment of the present disclosure can include a second display DIS2 and a display lifting unit.

[0271] The second display DIS2 is substantially the same as the second display DIS2 shown in Figure 17 , and thus, a repeated description thereof is omitted.

[0272] The display lifting unit (or display rising unit) can be located in the third area MA of the instrument panel DB, and can support the second display DIS2 to be raised or lowered. For example, the display lifting unit can raise the second display DIS2 based on power-on of the vehicle or manipulation by a passenger to protrude the second display DIS2 from the inside of the instrument panel DB. In addition, the display lifting unit can lower the second display DIS2 based on power-off of the vehicle or manipulation by a passenger to receive or load the second display DIS2 into the instrument panel DB.

[0273] Therefore, a vehicle according to another embodiment of the present disclosure can have the same effect as the vehicle shown in Figure 17 .

[0274] Figure 19 A vehicle according to another embodiment of the present disclosure is shown and shows Figure 18An example in which the structure of the infotainment module shown in [the figure] is modified. In the following, descriptions of the same components other than the infotainment module and related components will be briefly given or omitted.

[0275] Referring to Figure 19 , according to an embodiment of the present disclosure, the infotainment module ITM may include: a second display DIS2 that is installed to be raised or lowered in a third area MA of the instrument panel DB; a display lifting unit that raises or lowers the second display DIS2; and a third display DIS3 that is installed in a second area PA of the instrument panel DB.

[0276] The second display DIS2 and the display lifting unit are substantially the same as the second display and the display lifting unit shown in Figure 18 , and thus, their repeated descriptions are omitted.

[0277] The third display DIS3 may share the functions of the second display DIS2. For example, the third display DIS3 may be connected to a navigation system and vehicle convenience systems such as an audio system, an air conditioning system, and a multimedia system, each of which is equipped in the vehicle, and may display navigation information provided from the navigation system and control icons for controlling the corresponding vehicle convenience system. In addition, the third display DIS3 may provide sounds corresponding to sound signals provided from the audio system and / or the multimedia system to passengers. In addition, the third display DIS3 may transmit or receive image information or sound information through wireless communication with a wireless communication device of a passenger sitting on the passenger seat, and may display the received image information on the display panel.

[0278] The third display DIS3 may include a display device according to the embodiment shown in Figures 1 to 16 , and thus, its repeated description is omitted.

[0279] The third display DIS3 may have a length that expands toward the third area MA of the instrument panel DB. For example, the third display DIS3 may be provided in the second area PA and the third area MA of the instrument panel DB.

[0280] The first display DIS1 of the instrument panel module IPM and the second display DIS2 and the third display DIS3 of the infotainment module ITM may all be used as speakers for outputting sounds in the vehicle.

[0281] Therefore, a vehicle according to another embodiment of the present disclosure may have the same as Figure 17 or Figure 18In addition, the vehicle according to the embodiment of the present disclosure can use the first display DIS1 of the instrument panel module IPM and each of the second display DIS2 and the third display DIS3 of the infotainment module ITM as a speaker for outputting sound, and can use the sound generated by the vibration of each of the first display DIS1, the second display DIS2 and the third display DIS3 to transmit 3-channel stereo to the driver and / or passengers.

[0282] Figure 20 A vehicle according to another embodiment of the present disclosure is shown and Figure 17 An example in which the structure of the infotainment module shown in FIG is modified. Hereinafter, a description of the same elements except for the infotainment module and related elements will be briefly given or omitted.

[0283] Reference Figure 20 According to an embodiment of the present disclosure, the infotainment module ITM may further include: a fourth display DIS4, which is disposed on the rear surface of the driver's seat (or driver's seat panel) DS; and a fifth display DIS5, which is disposed on the rear surface of the passenger seat (or passenger seat panel) PS.

[0284] The fourth display DIS4 may be provided in or embedded in the headrest of the driver's seat DS, and the fifth display DIS5 may be provided in or embedded in the headrest of the passenger seat PS.

[0285] Each of the fourth display DIS4 and the fifth display DIS5 may include the Figures 1 to 16 The display device of the embodiment shown in FIG. 1 is a display device of the embodiment shown in FIG. 1 , and therefore, a repeated description thereof is omitted.

[0286] Each of the fourth display DIS4 and the fifth display DIS5 can share the function of the second display DIS2. In addition, each of the fourth display DIS4 and the fifth display DIS5 can send or receive image information or sound information through wireless communication with the wireless communication device of the passenger sitting in the back seat, and can display the received image information on the display panel.

[0287] The first display DIS1 of the instrument panel module IPM and the second, fourth, and fifth displays DIS2, DIS4, and DIS5 of the infotainment module ITM may be used as speakers for outputting sounds in the vehicle.

[0288] Therefore, a vehicle according to another embodiment of the present disclosure may have Figure 17The same effect as that of the vehicle shown. In addition, the vehicle according to an embodiment of the present disclosure may use each of the first display DIS1 of the instrument panel module IPM and the second display DIS2, the fourth display DIS4, and the fifth display DIS5 of the infotainment module ITM as a speaker for outputting sound, and may transmit 4-channel stereo sound to the driver and / or passengers using the sound generated by the vibration of each of the first display DIS1, the second display DIS2, the fourth display DIS4, and the fifth display DIS5.

[0289] In addition, in a vehicle according to an embodiment of the present disclosure, as Figure 18 shown, the second display DIS2 of the infotainment module ITM may be installed in the third area MA of the instrument panel DB so as to be raised or lowered. In addition, the infotainment module ITM may further include Figure 19 the third display DIS3 shown. In this case, the vehicle according to an embodiment of the present disclosure may use at least one of the first display DIS1 of the instrument panel module IPM and the second display DIS2, the third display DIS3, the fourth display DIS4, and the fifth display DIS5 of the infotainment module ITM as a speaker for outputting sound, and may transmit the sound generated by the vibration of the display panel included in at least one of the first display DIS1, the second display DIS2, the third display DIS3, the fourth display DIS4, and the fifth display DIS5 to the driver and / or passengers.

[0290] Figure 21 A vehicle according to another embodiment of the present disclosure is shown and an example is shown in which a speaker is added to Figures 17 to 20 one of the vehicles shown. Hereinafter, the description of the same elements except for the separate speakers and related components will be briefly given or omitted.

[0291] Because reverberation is severe in the vehicle and there are many curves where sound waves collide, there is a problem that it is difficult to output a desired sound. Therefore, in the case where a display device according to an embodiment of the present disclosure is provided in a vehicle or a vehicle body, the speaker installed in the vehicle may be implemented to have a small size, and the sound output from the vehicle may be enhanced.

[0292] Referring to Figure 21 , a vehicle according to another embodiment of the present disclosure may further include at least one of the following: a dashboard speaker DBS, a left front door speaker LFS, a right front door speaker RFS, a left rear door speaker LRS, a right rear door speaker RRS, and a rear garnish speaker RDS.

[0293] The dashboard speaker DBS may include at least one of a first dashboard speaker DBS1 disposed at a left peripheral portion of the dashboard DB and a second dashboard speaker DBS2 disposed at a right peripheral portion of the dashboard DB. For example, each of the first dashboard speaker DBS1 and the second dashboard speaker DBS2 may be a speaker that outputs sound having a midrange or full range of 150 Hz to 20 kHz.

[0294] The left front door speaker LFS may include at least one of a first left front speaker LFS1 to a third left front speaker LFS3.

[0295] The first left front speaker LFS1 may be disposed at a first portion of the left front door adjacent to the dashboard DB. The second left front speaker LFS2 may be disposed at an intermediate portion of the left front door. The third left front speaker LFS3 may be disposed at a second portion of the left front door adjacent to the left rear door. For example, the first left front speaker LFS1 may be a display panel speaker implemented by the Figures 1 to 12 display device shown in. In this case, the left front speaker may output sound based on the vibration of the display panel and may be used as a left side mirror that displays an image from a left rear camera disposed on the left surface of the vehicle.

[0296] The right front door speaker RFS may include at least one of a first right front speaker RFS1 to a third right front speaker RFS3.

[0297] The first right front speaker RFS1 may be disposed at a first portion of the right front door adjacent to the dashboard DB. The second right front speaker RFS2 may be disposed at an intermediate portion of the right front door. The third right front speaker RFS3 may be disposed at a second portion of the right front door adjacent to the right rear door. For example, the first right front speaker RFS1 may be a display panel speaker implemented by the Figures 1 to 16 display device shown in. In this case, the right front speaker may output sound based on the vibration of the display panel and may be used as a right side mirror that displays an image from a right rear camera disposed on the right surface of the vehicle.

[0298] Each of the first left front speaker LFS1 and the first right front speaker RFS1 may be a speaker that outputs sound having a midrange or full range of 150 Hz to 20 kHz. The sounds output from the first left front speaker LFS1 and the first right front speaker RFS1 may be combined and output.

[0299] Each of the second left front speaker LFS2 and the second right front speaker RFS2 can be a tweeter or a speaker that outputs sounds in the range of 2 kHz to 20 kHz. The sounds output from the first left front speaker LFS1, the second left front speaker LFS2, the first right front speaker RFS1, and the second right front speaker RFS2 can be combined and output.

[0300] Each of the third left front speaker LFS3 and the third right front speaker RFS3 can be one of a woofer, a mid-woofer, and a subwoofer, or a speaker that outputs sounds in the range of 150 Hz to 20 kHz with an intermediate range or a full range. The sounds output from the third left front speaker LFS3 and the third right front speaker RFS3 can be combined and output.

[0301] The left rear door speaker LRS can include at least one of the first left rear speakers LRS1 to the third left rear speakers LRS3.

[0302] The first left rear speaker LRS1 can be set at the first part of the left rear door adjacent to the left front door. The second left rear speaker LRS2 can be set at the middle part of the left rear door. The third left rear speaker LRS3 can be set at the second part of the left rear door adjacent to the rear decoration RD.

[0303] The right rear door speaker RRS can include at least one of the first right rear speakers RRS1 to the third right rear speakers RRS3.

[0304] The first right rear speaker RRS1 can be set at the first part of the right rear door adjacent to the right front door. The second right rear speaker RRS2 can be set at the middle part of the right rear door. The third right rear speaker RRS3 can be set at the second part of the right rear door adjacent to the rear decoration RD.

[0305] Each of the first left rear speaker LRS1 and the first right rear speaker RRS1 can be a tweeter or a speaker that outputs sounds in the range of 2 kHz to 20 kHz. The sounds output from the first left rear speaker LRS1 and the first right rear speaker RRS1 can be combined and output.

[0306] Each of the second left rear speaker LRS2 and the second right rear speaker RRS2 can be a speaker that outputs sounds in the range of 150 Hz to 20 kHz with an intermediate range or a full range. The sounds output from the first left rear speaker LRS1, the second left rear speaker, the first right rear speaker RRS1, and the second right rear speaker RRS2 can be combined and output.

[0307] Each of the third left rear speaker LRS3 and the third right rear speaker RRS3 can be one of a woofer, a mid-woofer, and a subwoofer, or can be a speaker that outputs sound having a midrange or full range of 150 Hz to 20 kHz. The sounds output from the third left rear speaker LRS3 and the third right rear speaker RRS3 can be combined and output.

[0308] The rear decorative speaker RDS can include at least one of the following: a first rear decorative speaker RDS1 disposed at the left peripheral portion of the rear decoration RD, a second rear decorative speaker RDS2 disposed at the right peripheral portion of the rear decoration RD, and a third rear decorative speaker RDS3 disposed at the middle portion of the rear decoration RD.

[0309] Each of the first rear decorative speaker RDS1 and the second rear decorative speaker RDS2 can be a speaker that outputs sound having a midrange or full range of 150 Hz to 20 kHz.

[0310] The third rear decorative speaker RDS3 can be one of a woofer, a mid-woofer, and a subwoofer, or can be a speaker that outputs sound of 60 Hz to 150 Hz, or can be at least one tweeter, or can be a speaker that outputs sound of 2 kHz to 20 kHz.

[0311] The speakers provided on the left side and the speakers provided on the right side can be set to be symmetric with respect to the direction toward the front window of the vehicle. For example, the frequency of the sound output from the speaker provided on the left side inside the vehicle can be one or more of 150 Hz to 20 kHz and 2 kHz to 20 kHz, and the frequency of the sound output from the sound generating device provided on the right side inside the vehicle can be one or more of 150 Hz to 20 kHz and 2 kHz to 20 kHz. When the speakers are configured as described above, the localization of the sound output from each of the left side and the right side inside the vehicle can be enhanced.

[0312] Therefore, a vehicle according to another embodiment of the present disclosure can use at least one of the first display DIS1 of the instrument panel module IPM and the second display DIS2, the third display DIS3, the fourth display DIS4, and the fifth display DIS5 of the infotainment module ITM as a speaker for outputting sound, can output sound generated by vibration of a display panel included in at least one of the first display DIS1, the second display DIS2, the third display DIS3, the fourth display DIS4, and the fifth display DIS5, and can output sound through at least one speaker provided in at least one of the instrument panel DB, the rear decoration RD, the left door, and the right door, thereby providing multi-channel surround stereo to a driver and / or a passenger.

[0313] Figure 22 is a graph showing the experimental results of the sound pressure characteristics of a display device according to an embodiment of the present disclosure. In Figure 22 , an APX525 from Audio Precision was used to measure the sound pressure level, a sine sweep was applied from 100 Hz to 20 kHz, and the sound pressure level was measured at a position 1 m away from the display panel. The sine sweep may be a method of performing a sweep in a short time, but is not limited thereto. In Figure 18 , the horizontal axis represents the frequency (Hz), and the vertical axis represents the sound pressure level (SPL) (dB).

[0314] As Figure 22 shown, it can be seen that the sound output from the display device according to the embodiment shown in Figures 1 to 9 has a reproduction band of 100 Hz to 20 kHz and is output at a sound pressure level of 65 dB or higher, for example, the sound of 150 Hz to 20 kHz is output at a sound pressure level of 75 dB or higher. Therefore, even in the absence of a separate speaker, the display device according to the embodiment of the present disclosure can vibrate the display panel to output a sound of 100 Hz to 20 kHz.

[0315] In addition, the sound pressure level of the sound decreases in proportion to the square root of the distance. Generally, considering that the sound pressure level of a person's voice when speaking at a position 0.5 m away from the listener is about 60 dB, the sound pressure level that enables a listener separated from the display device by about 2 m to easily hear the sound output from the display device should satisfy about 72 dB to 75 dB. Therefore, regarding a sound pressure level of 74 dB, the display device according to the embodiment of the present disclosure can provide a sound of 150 Hz to 20 kHz with a sound pressure level of 75 dB or higher to a listener separated from the display device by about 2 m.

[0316] The display device according to an embodiment of the present disclosure can be applied to various applications that output sound based on vibration of a display panel. The display device according to an embodiment of the present disclosure can be applied to mobile devices, video phones, smart watches, watch phones, wearable devices, foldable devices, rollable devices, bendable devices, flexible devices, curved devices, portable multimedia players (PMPs), personal digital assistants (PDAs), electronic assistants, desktop personal computers (PCs), laptop PCs, netbook computers, workstations, navigation devices, in-vehicle navigation devices, in-vehicle display devices, TVs, wallpaper display devices, signage devices, game consoles, laptop computers, monitors, cameras, camcorders, household appliances, and the like. In addition, the flexible vibration module according to an embodiment of the present disclosure can be applied to an organic light-emitting lighting device or an inorganic light-emitting lighting device. Further, when the flexible vibration module according to the present disclosure is applied to a mobile device, the flexible vibration module can be used as a speaker or a receiver.

[0317] A display device and a vehicle including the display device according to an embodiment of the present disclosure will be described below.

[0318] According to an embodiment of the present disclosure, a display device includes: a display panel configured to display an image; a front member on a front surface of the display panel; a driving circuit on a rear surface of the display panel and connected to the display panel; a support frame configured to surround side surfaces of the display panel and side surfaces of the driving circuit; a first support member supported by the support frame and on the rear surface of the display panel; and a vibration generation module supported by the first support member to vibrate the display panel.

[0319] For example, the display device according to an embodiment of the present disclosure may further include a second support member between the rear surface of the display panel and the driving circuit, wherein the driving circuit includes a flexible circuit film connected to the display panel and a printed circuit board connected to the flexible circuit film at the rear surface of the display panel and supported by the second support member.

[0320] For example, in the display device according to an embodiment of the present disclosure, the second support member may include a double-sided tape.

[0321] For example, in the display device according to an embodiment of the present disclosure, the double-sided tape may include foam.

[0322] For example, the display device according to an embodiment of the present disclosure may further include another printed circuit board in a third region other than a second region overlapping with the vibration generation module and a first region overlapping with the printed circuit board.

[0323] For example, in a display device according to an embodiment of the present disclosure, the driving circuit may further include: a printed circuit board on the rear surface of the display panel; and a second support member between the rear surface of the display panel and the driving circuit, wherein the second support member includes a holder that supports the printed circuit board at a support frame.

[0324] For example, in a display device according to an embodiment of the present disclosure, the holder may include: a second plate on the printed circuit board, with an adhesive member therebetween, and the second plate is spaced apart from the rear surface of the display panel; and a pair of bridging portions that bend from both sides of the second plate and are connected to the support frame.

[0325] For example, a display device according to an embodiment of the present disclosure may further include a buffer member between the second plate and the rear surface of the display panel.

[0326] For example, in a display device according to an embodiment of the present disclosure, the driving circuit may further include: a printed circuit board on the rear surface of the display panel; and a buffer member between the rear surface of the display panel and the printed circuit board.

[0327] For example, in a display device according to an embodiment of the present disclosure, the first support member may include: a first plate on the rear surface of the display panel; a side portion that bends from one side of the first plate and is supported by the support frame; and a first forming portion on the first plate to support the vibration generating module.

[0328] For example, in a display device according to an embodiment of the present disclosure, the first support member may further include: a second forming portion that protrudes from the central portion of the first plate toward the rear surface of the display panel; and a hole in the first forming portion, wherein a part of the rear surface of the vibration generating module is received in the hole, and the second forming portion surrounds the first forming portion.

[0329] For example, in a display device according to an embodiment of the present disclosure, the vibration generating module may include: a first sound generator in a first region of the first forming portion to vibrate a first region of the rear surface of the display panel; and a second sound generator in a second region of the first forming portion to vibrate a second region of the rear surface of the display panel.

[0330] For example, in a display device according to an embodiment of the present disclosure, the vibration generating module may include: a first sound generator that vibrates a first region of the rear surface of the display panel in a first region of the first forming portion; a second sound generator that vibrates a second region of the rear surface of the display panel in a second region of the first forming portion; a third sound generator configured to vibrate a third region of the rear surface of the display panel; and a fourth sound generator configured to vibrate a fourth region of the rear surface of the display panel.

[0331] According to an embodiment of the present disclosure, a display device includes: a display panel configured to display an image; a front member on a front surface of the display panel; a first support member on a rear surface of the display panel; a vibration generating module supported by the first support member to vibrate the display panel; and a printed circuit board between the rear surface of the display panel and the first support member.

[0332] For example, a display device according to an embodiment of the present disclosure may further include a second support member between the rear surface of the display panel and the printed circuit board.

[0333] For example, in a display device according to an embodiment of the present disclosure, the second support member may include a double-sided tape.

[0334] For example, in a display device according to an embodiment of the present disclosure, the double-sided tape may include foam.

[0335] For example, a display device according to an embodiment of the present disclosure may further include a balance member in a third region other than a second region overlapping with the vibration generating module and a first region overlapping with the printed circuit board.

[0336] For example, in a display device according to an embodiment of the present disclosure, the balance member may include: another printed circuit board having a size larger than that of the printed circuit board; and an adhesive member between the rear surface of the display panel and the another printed circuit board.

[0337] For example, a display device according to an embodiment of the present disclosure may further include: a support frame on a rear surface of the front member to surround a side surface of the display panel and support the first support member; and a second support member between the rear surface of the display panel and the printed circuit board.

[0338] For example, in a display device according to an embodiment of the present disclosure of the present disclosure, the second support member may include a holder for supporting a printed circuit board, and the holder includes: a second plate on the rear surface of the printed circuit board with an adhesive member therebetween; and a pair of bridging portions that bend from both sides of the second plate and are connected to the support frame.

[0339] For example, in a display device according to an embodiment of the present disclosure of the present disclosure, the second support member may further include a buffer member between the rear surface of the display panel and the holder.

[0340] For example, in a display device according to an embodiment of the present disclosure of the present disclosure, the support frame may surround the side surface of the printed circuit board.

[0341] For example, a display device according to an embodiment of the present disclosure of the present disclosure may further include a buffer member between the rear surface of the display panel and the printed circuit board.

[0342] For example, a display device according to an embodiment of the present disclosure of the present disclosure may further include a support frame that surrounds the side surface of the display panel between the front member and the first support member, wherein the first support member includes a first plate on the rear surface of the display panel; a side portion that bends from one side of the first plate and is supported by the support frame; and a first forming portion on the first plate to support the vibration generating module.

[0343] For example, in a display device according to an embodiment of the present disclosure of the present disclosure, the first support member may further include a hole in the first forming portion, and a part of the rear surface of the vibration generating module is received in the hole of the first forming portion.

[0344] For example, in a display device according to an embodiment of the present disclosure of the present disclosure, the first support member may further include: a second forming portion that protrudes from the central portion of the first plate toward the rear surface of the display panel; and a hole in the first forming portion, a part of the rear surface of the vibration generating module is received in the hole, and the second forming portion surrounds the first forming portion.

[0345] For example, in a display device according to an embodiment of the present disclosure of the present disclosure, the vibration generating module may include: a first sound generator in a first region of the first forming portion to vibrate a first region of the rear surface of the display panel; and a second sound generator in a second region of the first forming portion to vibrate a second region of the rear surface of the display panel.

[0346] For example, in a display device according to an embodiment of the present disclosure, the vibration generating module may include: a first sound generator that vibrates a first region of the rear surface of the display panel in a first region of the first forming portion; a second sound generator that vibrates a second region of the rear surface of the display panel in a second region of the first forming portion; a third sound generator configured to vibrate a third region of the rear surface of the display panel; and a fourth sound generator configured to vibrate a fourth region of the rear surface of the display panel.

[0347] For example, in a display device according to an embodiment of the present disclosure, the third sound generator may include a piezoelectric material, and the fourth sound generator may include a piezoelectric material.

[0348] For example, a display device according to an embodiment of the present disclosure may further include a thermal insulation member between the vibration generating module and the display panel.

[0349] For example, a display device according to an embodiment of the present disclosure may further include a connection member configured to connect the vibration generating module to an inner surface of the first support member.

[0350] According to an embodiment of the present disclosure, a vehicle includes: an instrument panel including a first region facing a driver's seat; an instrument panel module including a first display in the first region of the instrument panel, the first display including: a display panel configured to display an image; a front member on a front surface of the display panel; a driving circuit on a rear surface of the display panel and connected to the display panel; a support frame configured to surround side surfaces of the display panel and the driving circuit; a first support member supported by the support frame and on the rear surface of the display panel; and a vibration generating module supported by the first support member to vibrate the display panel.

[0351] For example, in a vehicle according to an embodiment of the present disclosure, the first display may output sound based on vibration of the display panel vibrated by the vibration generating module.

[0352] According to an embodiment of the present disclosure, a vehicle includes: a dashboard including a first region facing a driver's seat, a second region facing a passenger's seat, and a third region between the first region and the second region; an instrument panel module including a first display in the first region of the dashboard; and an infotainment module including at least one of a second display in the third region of the dashboard, a third display in the second region of the dashboard, a fourth display on a rear surface of the driver's seat, and a fifth display on a rear surface of the passenger's seat, wherein one of the first to fifth displays includes a display device, the display device including: a display panel configured to display an image; a front member on a front surface of the display panel; a driving circuit on a rear surface of the display panel and connected to the display panel; a support frame configured to surround side surfaces of the display panel and the driving circuit; a first support member supported by the support frame and on the rear surface of the display panel; and a vibration generation module supported by the first support member to vibrate the display panel.

[0353] According to an embodiment of the present disclosure, a vehicle includes a dashboard, the dashboard including a display device, the display device including: a display panel configured to display an image; a front member on a front surface of the display panel; a driving circuit on a rear surface of the display panel and connected to the display panel; a support frame configured to surround side surfaces of the display panel and the driving circuit; a first support member supported by the support frame and on the rear surface of the display panel; and a vibration generation module supported by the first support member to vibrate the display panel.

[0354] According to an embodiment of the present disclosure, a vehicle includes: a dashboard including a first region facing a driver's seat, a second region facing a passenger's seat, and a third region between the first region and the second region; an instrument panel module including a first display in the first region of the dashboard; and an infotainment module including at least one of a second display in the third region of the dashboard, a third display in the second region of the dashboard, a fourth display on a rear surface of the driver's seat, and a fifth display on a rear surface of the passenger's seat, wherein one of the first to fifth displays includes a display device, the display device including: a display panel configured to display an image; a front member on a front surface of the display panel; a first support member on the rear surface of the display panel; a vibration generation module supported by the first support member to vibrate the display panel; and a printed circuit board between the rear surface of the display panel and the first support member.

[0355] For example, in a vehicle according to an embodiment of the present disclosure, at least one of the first to fifth displays may output sound based on vibration of the display panel vibrated by the vibration generation module.

[0356] For example, a vehicle according to an embodiment of the present disclosure may further include: a left front door, a right front door, a left rear door, a right rear door, and a rear trim; and at least one of a dashboard speaker on the dashboard, a left front door speaker at the left front door, a right front door speaker at the right front door, a left rear door speaker at the left rear door, a right rear door speaker at the right rear door, and a rear trim speaker at the rear trim.

[0357] It will be apparent to those skilled in the art that various modifications and variations can be made to the present disclosure without departing from the technical concept or scope thereof. Therefore, it is contemplated that embodiments of the present disclosure cover modifications and variations of the present disclosure as long as they fall within the scope of the appended claims and their equivalents.

[0358] Inventive concept

[0359] The present invention provides the following inventive concepts:

[0360] 1. A display device, comprising:

[0361] A display panel configured to display an image;

[0362] A front member on a front surface of the display panel;

[0363] A driving circuit on a rear surface of the display panel and connected to the display panel;

[0364] A support frame configured to surround side surfaces of the display panel and side surfaces of the driving circuit;

[0365] A first support member supported by the support frame and on the rear surface of the display panel; and

[0366] A vibration generating module supported by the first support member to vibrate the display panel.

[0367] 2. The display device according to inventive concept 1, further comprising:

[0368] A second support member between the rear surface of the display panel and the driving circuit,

[0369] wherein the driving circuit includes:

[0370] A flexible circuit film connected to the display panel; and

[0371] A printed circuit board, which is connected to the flexible circuit film at the rear surface of the display panel and is supported by the second support member.

[0372] 3. The display device according to inventive concept 2, wherein the second support member includes a double-sided tape.

[0373] 4. The display device according to inventive concept 3, wherein the double-sided tape includes foam.

[0374] 5. The display device according to inventive concept 2, further comprising:

[0375] Another printed circuit board, which is in a third region other than a first region overlapping with the printed circuit board and a second region overlapping with the vibration generating module.

[0376] 6. The display device according to inventive concept 1, further comprising:

[0377] The driving circuit, which includes a printed circuit board on the rear surface of the display panel; and

[0378] A second support member, which is between the rear surface of the display panel and the driving circuit,

[0379] wherein the second support member includes a holder for supporting the printed circuit board at the support frame.

[0380] 7. The display device according to inventive concept 6, wherein the holder includes:

[0381] A second plate, which is on the printed circuit board, with an adhesive member therebetween, and the second plate is spaced apart from the rear surface of the display panel; and

[0382] A pair of bridging portions, which are bent from both sides of the second plate and connected to the support frame.

[0383] 8. The display device according to inventive concept 7, further comprising: a buffer member, which is between the second plate and the rear surface of the display panel.

[0384] 9. The display device according to inventive concept 1, further comprising:

[0385] The driving circuit, which includes a printed circuit board on the rear surface of the display panel; and

[0386] A buffer member, which is between the rear surface of the display panel and the printed circuit board.

[0387] 10. The display device according to inventive concept 1, wherein the first support member includes:

[0388] A first plate on the rear surface of the display panel;

[0389] A side portion that bends from one side of the first plate and is supported by the support frame; and

[0390] A first forming portion on the first plate to support the vibration generating module.

[0391] 11. The display device according to inventive concept 10, wherein:

[0392] The first support member further includes:

[0393] A second forming portion that protrudes from the central portion of the first plate toward the rear surface of the display panel; and

[0394] A hole in the first forming portion,

[0395] wherein a part of the rear surface of the vibration generating module is received in the hole, and

[0396] wherein the second forming portion surrounds the first forming portion.

[0397] 12. The display device according to inventive concept 10, wherein the vibration generating module includes:

[0398] A first sound generator in a first area of the first forming portion to vibrate a first area of the rear surface of the display panel; and

[0399] A second sound generator in a second area of the first forming portion to vibrate a second area of the rear surface of the display panel.

[0400] 13. The display device according to inventive concept 10, wherein the vibration generating module includes:

[0401] A first sound generator in a first area of the first forming portion to vibrate a first area of the rear surface of the display panel;

[0402] A second sound generator in a second area of the first forming portion to vibrate a second area of the rear surface of the display panel;

[0403] A third sound generator configured to vibrate a third area of the rear surface of the display panel; and

[0404] A fourth sound generator configured to vibrate a fourth area on the rear surface of the display panel.

[0405] 14. A display device, comprising:

[0406] A display panel configured to display an image;

[0407] A front member on the front surface of the display panel;

[0408] A first support member on the rear surface of the display panel;

[0409] A vibration generating module supported by the first support member to vibrate the display panel; and

[0410] A printed circuit board between the rear surface of the display panel and the first support member.

[0411] 15. The display device according to inventive concept 14, further comprising: a second support member between the rear surface of the display panel and the printed circuit board.

[0412] 16. The display device according to inventive concept 15, wherein the second support member includes a double-sided tape.

[0413] 17. The display device according to inventive concept 16, wherein the double-sided tape includes foam.

[0414] 18. The display device according to inventive concept 14, further comprising: a balance member in a third area other than a first area overlapping with the printed circuit board and a second area overlapping with the vibration generating module.

[0415] 19. The display device according to inventive concept 18, wherein the balance member includes:

[0416] Another printed circuit board having a size larger than that of the printed circuit board; and

[0417] An adhesive member between the rear surface of the display panel and the another printed circuit board.

[0418] 20. The display device according to inventive concept 14, further comprising:

[0419] A support frame on the rear surface of the front member to surround a side surface of the display panel and support the first support member; and

[0420] A second support member disposed between the rear surface of the display panel and the printed circuit board.

[0421] 21. The display device according to inventive concept 20, wherein:

[0422] The second support member includes a holder for supporting the printed circuit board; and

[0423] The holder includes:

[0424] A second plate disposed on the rear surface of the printed circuit board with an adhesive member therebetween; and

[0425] A pair of bridging portions bent from both sides of the second plate and connected to the support frame.

[0426] 22. The display device according to inventive concept 21, wherein the second support member further includes a buffer member between the rear surface of the display panel and the holder.

[0427] 23. The display device according to inventive concept 20, wherein the support frame surrounds a side surface of the printed circuit board.

[0428] 24. The display device according to inventive concept 14, further including: a buffer member between the rear surface of the display panel and the printed circuit board.

[0429] 25. The display device according to inventive concept 14, further including: a support frame between the front member and the first support member to surround a side surface of the display panel,

[0430] wherein the first support member includes:

[0431] A first plate disposed on the rear surface of the display panel;

[0432] A side portion bent from one side of the first plate and supported by the support frame; and

[0433] A first forming portion on the first plate to support the vibration generating module.

[0434] 26. The display device according to inventive concept 25, wherein:

[0435] The first support member further includes a hole in the first forming portion; and

[0436] A part of the rear surface of the vibration generating module is received in the hole of the first forming portion.

[0437] 27. The display device according to inventive concept 25, wherein:

[0438] The first support member further includes:

[0439] A second forming portion protruding from a central portion of the first plate toward a rear surface of the display panel; and

[0440] A hole in the first forming portion,

[0441] wherein a part of a rear surface of the vibration generating module is received in the hole; and

[0442] wherein the second forming portion surrounds the first forming portion.

[0443] 28. The display device according to inventive concept 25, wherein the vibration generating module includes:

[0444] A first sound generator that vibrates a first region of the rear surface of the display panel in a first region of the first forming portion; and

[0445] A second sound generator that vibrates a second region of the rear surface of the display panel in a second region of the first forming portion.

[0446] 29. The display device according to inventive concept 25, wherein the vibration generating module includes:

[0447] A first sound generator that vibrates a first region of the rear surface of the display panel in a first region of the first forming portion;

[0448] A second sound generator that vibrates a second region of the rear surface of the display panel in a second region of the first forming portion;

[0449] A third sound generator configured to vibrate a third region of the rear surface of the display panel; and

[0450] A fourth sound generator configured to vibrate a fourth region of the rear surface of the display panel.

[0451] 30. The display device according to inventive concept 29, wherein:

[0452] The third sound generator includes a piezoelectric material; and

[0453] The fourth sound generator includes a piezoelectric material.

[0454] 31. The display device according to inventive concept 14 further includes: a thermal insulation member between the vibration generating module and the display panel.

[0455] 32. The display device according to inventive concept 14 further includes: a connection member configured to connect the vibration generating module to the inner surface of the first support member.

[0456] 33. A vehicle includes:

[0457] An instrument panel including a first area facing the driver's seat; and

[0458] An instrument panel module including a first display in the first area of the instrument panel;

[0459] wherein the first display includes the display device according to one of inventive concepts 1 to 32.

[0460] 34. A vehicle includes:

[0461] An instrument panel including a first area facing the driver's seat, a second area facing the passenger's seat, and a third area between the first area and the second area;

[0462] An instrument panel module including a first display in the first area of the instrument panel; and

[0463] An infotainment module including at least one of a second display in the third area of the instrument panel, a third display in the second area of the instrument panel, a fourth display on the rear surface of the driver's seat, and a fifth display on the rear surface of the passenger's seat,

[0464] wherein at least one of the first to fifth displays includes the display device according to one of inventive concepts 1 to 32.

[0465] 35. A vehicle includes:

[0466] An instrument panel including the display device according to one of inventive concepts 1 to 32.

[0467] 36. In the vehicle according to inventive concept 33, the first display outputs sound based on vibration of the display panel vibrated by the vibration generating module.

[0468] 37. The vehicle according to inventive concept 34, wherein at least one of the first to fifth displays outputs sound based on vibration of the display panel vibrated by the vibration generating module.

[0469] 38. The vehicle according to inventive concept 33, further comprising:

[0470] a left front door, a right front door, a left rear door, a right rear door, and a rear garnish; and

[0471] at least one of a dashboard speaker on the dashboard, a left front door speaker at the left front door, a right front door speaker at the right front door, a left rear door speaker at the left rear door, a right rear door speaker at the right rear door, and a rear garnish speaker at the rear garnish.

Claims

1. A display device, comprising: A display panel configured to display an image; A support frame configured to surround a side surface of the display panel; A first support member at a rear surface of the support frame; One or more sound generators at the first support member, the one or more sound generators being configured to vibrate the display panel; And One or more piezoelectric devices configured to vibrate a peripheral portion of a rear surface of the display panel, Wherein the support frame includes a frame portion having an opening for accommodating the display panel, Wherein the opening is configured to have a size larger than a size of the display panel, Wherein the first support member is connected to a rear surface of the frame portion of the support frame and covers the rear surface of the support frame, and Wherein the one or more sound generators are connected to the first support member and connected to a rear surface of the display panel.

2. The display device according to claim 1, Among them, The one or more sound generators are configured to vibrate the display panel and output sound of a first sound band, and Wherein the one or more piezoelectric devices are configured to vibrate the display panel and output sound of a second sound band higher than the sound of the first sound band, and / or Wherein the one or more sound generators include coil-type sound generators, and the one or more piezoelectric devices include piezoelectric-type sound generators.

3. The display device according to claim 1, wherein, The one or more piezoelectric devices are connected to a rear outer peripheral portion of the display panel through a connection member.

4. The display device according to claim 1, further comprising one or more protection members disposed at a rear surface of the one or more piezoelectric devices.

5. The display device according to claim 4, wherein, The one or more protection members have a size larger than that of the one or more piezoelectric devices.

6. The display device according to claim 4, wherein, The one or more protection members include one of a polyimide PI film, a polyethylene terephthalate PET insulating tape, and a polyvinyl chloride PVC insulating tape.

7. The display device according to claim 1, wherein, The one or more sound generators include: A first sound generator configured to vibrate a first area of the display panel; and A second sound generator configured to vibrate a second area of the display panel.

8. The display device according to claim 1, wherein, The one or more piezoelectric devices include: A first piezoelectric device configured to vibrate a third area of a rear surface of the display panel; and A second piezoelectric device configured to vibrate a fourth area of a rear surface of the display panel.

9. The display device according to claim 1, wherein, The first support member includes: A first plate at a rear surface of the display panel; and A first formed portion at the first plate, the one or more sound generators being received in the first formed portion.

10. The display device according to claim 9, wherein, The first support member further includes a side portion bent from one side of the first plate.

11. The display device according to claim 9, wherein, The first support member further includes: A second formed portion at the first plate; and A hole at the first forming portion, and a part of the rear surface of the one or more sound generators is received in the hole.

12. The display device according to claim 11, wherein, The second forming portion surrounds the first forming portion.

13. The display device according to claim 11, wherein, The second forming portion projects from a central portion of the first plate toward the rear surface of the display panel.

14. The display device according to claim 1, wherein, The first support member covers the rear surface of the display panel.

15. The display device according to claim 1, wherein The one or more piezoelectric devices are configured to be received in the opening of the support frame.

16. The display device according to claim 15, wherein, The support frame further includes a frame side portion provided at an inner peripheral portion of the frame portion including the opening, and wherein the frame side portion is configured to surround a side surface of the display panel.

17. The display device according to claim 15, wherein, The opening is covered by the first support member.

18. The display device according to claim 15, further comprising a driving circuit, the driving circuit being at the rear surface of the display panel and being configured to be received in the opening of the support frame.

19. The display device according to claim 18, further comprising a second support member between the rear surface of the display panel and the driving circuit, Among them, The driving circuit includes a printed circuit board at the rear surface of the display panel.

20. The display device according to claim 19, wherein, The second support member includes a double-sided tape or a double-sided tape including foam.

21. The display device according to claim 19, wherein, The second support member includes a holder at the support frame.

22. The display device according to claim 21, wherein, The second support member further includes a buffer member between the rear surface of the display panel and the holder.

23. The display device according to claim 21, wherein, The holder includes: a second plate at the rear surface of the printed circuit board; and a pair of bridging portions bent from a side of the second plate.

24. The display device according to claim 23, wherein, The second plate has a size wider than that of the printed circuit board.

25. The display device according to claim 23, wherein, The second plate is spaced apart from the rear surface of the display panel.

26. The display device according to claim 19, further comprising a balance member at the rear surface of the display panel.

27. The display device according to claim 26, wherein, The rear surface of the display panel includes: a first region overlapping with the printed circuit board; a second region overlapping with the one or more sound generators; and a third region overlapping with the balance member.

28. The display device according to claim 26, wherein The balance member includes another printed circuit board having a size larger than the size of the printed circuit board.

29. The display device according to claim 1, further comprising a blocking member between the display panel and the one or more sound generators.

30. A display device, comprising: a display panel configured to display an image; a driving circuit at the rear surface of the display panel; a support frame configured to surround at least one or more of a side surface of the display panel and a side surface of the driving circuit; a first support member at the rear surface of the support frame; a second support member at the rear surface of the display panel; and one or more sound generators at the first support member, the one or more sound generators being configured to vibrate the display panel, wherein the support frame includes a frame portion having an opening for receiving the display panel and the driving circuit, Wherein, the opening is configured to have a size greater than the size of the display panel. Wherein, the second support member is configured to support the driving circuit. Wherein, the first support member is connected to the rear surface of the frame portion of the support frame and covers the rear surface of the support frame, and Wherein, the one or more sound generators are connected to the first support member and to the rear surface of the display panel.

31. The display device according to claim 30, wherein, The first support member includes: A first plate at the rear surface of the display panel; and One or more formed portions at the first plate, wherein the one or more sound generators are received in the one or more formed portions.

32. The display device according to claim 31, wherein The first support member further includes a side portion bent from one side of the first plate.

33. The display device according to claim 30, Among them, The driving circuit includes a printed circuit board at the rear surface of the display panel, and Wherein, the first support member covers the rear surface of the display panel and the printed circuit board.

34. The display device according to claim 30, wherein, The second support member includes a retainer at the support frame.

35. The display device according to claim 34, wherein, The second support member further includes a buffer member between the rear surface of the display panel and the retainer.

36. The display device according to claim 35, Among them, The retainer includes: A second plate at the rear surface of the driving circuit; and A pair of bridging portions bent from the side of the second plate.

37. The display device according to claim 36, Among them, The driving circuit includes a printed circuit board at the second plate, and Wherein, the second plate has a size wider than the printed circuit board.

38. The display device according to claim 36, wherein, The second plate is spaced apart from the rear surface of the display panel.

39. The display device according to claim 30, further comprising one or more piezoelectric devices configured to vibrate a peripheral portion of the rear surface of the display panel.

40. The display device according to claim 39, Among them, The one or more sound generators are configured to vibrate the display panel and output sound of a first sound band, and Wherein, the one or more piezoelectric devices are configured to vibrate the display panel and output sound of a second sound band higher than the sound of the first sound band, and / or Wherein, the one or more sound generators include coil-type sound generators, and the one or more piezoelectric devices include piezoelectric-type sound generators.

41. The display device according to claim 39, wherein, The one or more sound generators include: A first sound generator configured to vibrate a first region of the display panel; and A second sound generator configured to vibrate a second region of the display panel.

42. The display device according to claim 39, wherein, The one or more piezoelectric devices include: A first piezoelectric device configured to vibrate a third region of the rear surface of the display panel; and A second piezoelectric device configured to vibrate a fourth region of the rear surface of the display panel.

43. A vehicle, comprising: An instrument panel, the instrument panel including: A first region facing the driver's seat; A second region facing the passenger's seat; and A third region between the first region and the second region; An instrument panel, the instrument panel including a first display in the first region of the instrument panel; and An infotainment device, the infotainment device including: A second display in the third region of the instrument panel; A third display in the second region of the instrument panel; A fourth display at the rear surface of the driver's seat; and A fifth display at the rear surface of the passenger's seat, wherein at least one of the first display to the fifth display includes the display device according to any one of claims 1 to 42.

44. The vehicle according to claim 43, further including: A left front door, a right front door, a left rear door, a right rear door, and a rear trim; And At least one of an instrument panel speaker at the instrument panel, a left front door speaker at the left front door, a right front door speaker at the right front door, a left rear door speaker at the left rear door, a right rear door speaker at the right rear door, and a rear trim speaker at the rear trim.

45. A vehicle, including: An instrument panel, the instrument panel including the display device according to any one of claims 1 to 42.

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