Display device and vehicle including same

Abstract

To provide a display device capable of outputting sound to the front of a display panel, capable of outputting acoustics improved in sound quality, acoustic performance, and sound pressure characteristics, and thereby enhancing a sense of immersion of a viewer or a listener, and a vehicle including the same.SOLUTION: A display device includes: a display panel 200 which displays an image; a front member 100 disposed on a front surface of the display panel 200; a driving circuit section 300 disposed on a back surface of the display panel 200 and connected to the display panel 200; a support frame 500 which is configured to enclose a side surface of the display panel 200 and a side surface of the driving circuit section 300; a first support 600 supported by the support frame 500 and disposed on a rear surface of the display panel 200; and a vibration generating module 700 including a plurality of acoustic generators 710 and 730 which are supported by the first support 600 and vibrate the display panel 200.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present specification relates to a display device and a vehicle including the same. [Background technology]

[0002] Display devices are used as screens for displaying images mounted on electronic products or home appliances such as televisions, monitors, notebook computers, smartphones, tablet computers, electronic pads, wearable devices, watch phones, portable information devices, navigation systems, or vehicle control display devices.

[0003] A typical display device may include a display panel that displays images and an audio device that outputs audio related to the images. However, in a typical display device, audio output from the audio device travels behind or below the display panel, and audio quality is degraded due to interference between audio reflected from surrounding structures such as walls and floors, which makes it difficult to transmit audio accurately and reduces the sense of immersion of the viewer. Summary of the Invention [Problem to be solved by the invention]

[0004] The inventors of the present specification have recognized the problems of a general display device and conducted several experiments to improve sound quality by making the sound travel direction in front of the display panel when watching an image in front of the display panel. Through the several experiments, the inventors have invented a display device having a new structure capable of generating sound that can travel in front of the display panel and improving sound quality.

[0005] An object of the present invention is to provide a display device capable of outputting sound in front of a display panel and a vehicle including the same.

[0006] The problem to be solved by one embodiment of the present specification is to provide a display device and a vehicle including the same that can improve sound quality and enhance the immersive feeling of a viewer or listener.

[0007] The technical problem to be solved by one embodiment of the present specification is to provide a display device and a vehicle including the same, which can prevent or minimize damage to a driving circuit unit due to vibration of a display panel.

[0008] In addition to the problems to be solved by the present specification, various features and advantages will be described below or will be clearly understood by those having ordinary skill in the art to which the present specification pertains from such descriptions and explanations. [Means for solving the problem]

[0009] A display device according to one embodiment of the present specification may include a display panel configured to display an image, a front member arranged on a front side of the display panel, a driving circuit arranged on a rear side of the display panel and connected to the display panel, a support frame configured to surround a side of the display panel and a side of a driving circuit unit, a first support supported by the support frame and arranged on the rear side of the display panel, and a vibration generating module supported by the first support to vibrate the display panel.

[0010] A display device according to one embodiment of the present specification may include a display panel configured to display an image, a front member arranged on a front side of the display panel, a first support arranged on a rear side of the display panel, a vibration generating module supported by the first support to vibrate the display panel, and a printed circuit board arranged between the rear side of the display panel and the first support.

[0011] A vehicle according to one embodiment of the present specification includes a dashboard having a first area facing the driver's seat, a second area facing the passenger seat, and a third area between the first and second areas, an instrument panel module having a first display arranged in the first area of ​​the dashboard, and an infotainment module having at least one of a second display arranged in the third area of ​​the dashboard, a third display arranged in the second area of ​​the dashboard, a fourth display arranged on the back of the driver's seat, and a fifth display arranged on the back of the passenger 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 images, a front member arranged on a front side of the display panel, a drive circuit arranged on the back of the display panel and connected to the display panel, a support frame configured to surround a side of the display panel and a side of the drive circuit unit, a first support supported by the support frame and arranged on the back of the display panel, and a vibration generating module supported by the first support and vibrating the display panel.

[0012] A vehicle according to one embodiment of the present specification includes a dashboard having a first area facing the driver's seat, a second area facing the passenger seat, and a third area between the first and second areas, an instrument panel module having a first display arranged in the first area of ​​the dashboard, and an infotainment module having at least one of a second display arranged in the third area of ​​the dashboard, a third display arranged in the second area of ​​the dashboard, a fourth display arranged on the back of the driver's seat, and a fifth display arranged on the back of the passenger 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 images, a front member arranged in front of the display panel, a first support arranged on the back of the display panel, a vibration generating module supported by the first support and vibrating the display panel, and a printed circuit board arranged between the back of the display panel and the first support. Effect of the Invention

[0013] The display device and vehicle including the same according to the embodiments of the present specification can output sound in front of the display panel, and can output sound with improved sound quality, acoustic performance, and sound pressure characteristics, thereby enhancing the sense of immersion of the viewer or listener.

[0014] In addition, the display device and the vehicle including the same according to the embodiments of the present specification can improve the reliability of the drive circuit unit by preventing or minimizing damage to the drive circuit unit caused by vibration of the display panel.

[0015] A display device and a vehicle including the same according to the embodiments of the present disclosure can increase the sound pressure, quality, and reproduction band of sound generated by vibration of a display panel.

[0016] In addition to the effects of the present invention described above, other features and advantages of the present invention will be described below or will be clearly understood by those having ordinary skill in the art to which the present invention pertains from such descriptions and explanations. R It would be. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 illustrates a display device according to an embodiment of the present disclosure. [Diagram 2] FIG. 2 is a diagram showing the rear surface of the display device shown in FIG. [Diagram 3] FIG. 3 is an exploded perspective view of the display device shown in FIGS. 1 and 2. [Figure 4] 3 is a cross-sectional view taken along line II' shown in FIG. 2. [Diagram 5] 3 is a cross-sectional view taken along line II-II' shown in FIG. 2. [Figure 6] FIG. 5 is an enlarged view of part “A” shown in FIG. [Figure 7] FIG. 5 is another enlarged view of part "A" shown in FIG. [Figure 8] FIG. 5 is another enlarged view of the portion "A" shown in FIG. [Figure 9] FIG. 5 is another enlarged view of the portion "A" shown in FIG. [Figure 10] FIG. 11 is an exploded perspective view showing a display device according to another embodiment of the present specification. [Figure 11] 11 is a diagram showing a support frame, a drive circuit unit, and a holder arranged on the rear surface of the display panel shown in FIG. 10. [Figure 12] 12 is a cross-sectional view taken along line III-III' shown in FIG. 11. [Figure 13] 13 is a diagram illustrating a display device according to still another embodiment of the present disclosure. [Figure 14] FIG. 14 is a cross-sectional view taken along line IV-IV' shown in FIG. [Figure 15] 13 is a diagram illustrating a display device according to still another embodiment of the present disclosure. [Figure 16] 16 is a cross-sectional view taken along line VV' shown in FIG. 15. [Figure 17] FIG. 1 illustrates a vehicle according to an embodiment of the present specification. [Figure 18] FIG. 2 is a diagram showing a vehicle according to another embodiment of the present specification. [Figure 19] FIG. 2 is a diagram showing a vehicle according to another embodiment of the present specification. [Figure 20] FIG. 2 is a diagram showing a vehicle according to another embodiment of the present specification. [Figure 21] FIG. 2 is a diagram showing a vehicle according to another embodiment of the present specification. [Figure 22] 1 is a graph showing measurement results of sound pressure characteristics of a display device according to an embodiment of the present specification. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] The advantages and features of the present specification, and the methods for achieving them, will become clear with reference to the following detailed description of the embodiments together with the accompanying drawings. However, the present specification is not limited to the embodiments disclosed below, but may be embodied in various different forms, and the embodiments are provided merely to complete the disclosure of the specification and to fully inform those skilled in the art of the invention to which the specification pertains, and the specification is defined only by the scope of the claims.

[0019] The shapes, sizes, ratios, angles, numbers, etc. shown in the drawings for describing an example of the present specification are merely illustrative and the present specification is not limited to the matters shown in the drawings. The same reference numerals refer to the same components throughout the specification. In addition, in describing the present specification, if a detailed description of related publicly known technology is determined to unnecessarily obscure the gist of the present specification, the detailed description will be omitted.

[0020] When the terms "comprise", "have", "consist of", etc. are used as mentioned in this specification, other parts can be added unless "only" is used. When an element is expressed in the singular, it includes the plural unless otherwise expressly stated.

[0021] In interpreting components, it is interpreted as including a margin of error even if there is no other explicit description. In the case of a description of a positional relationship, for example, when the positional relationship of two parts is described using "above", "at the top", "below", "beside", etc., one or more other parts may be located between the two parts, unless "immediately" or "directly" is used. In the case of a description of a time relationship, for example, when the temporal sequence is described using "after", "following", "next to", "before", etc., it may also include cases where the two are not consecutive, as long as "immediately" or "directly" is not used.

[0022] Although the terms "first", "second" and the like are used to describe various components, these components are not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, the first component referred to below may be the second component within the technical concept of this specification.

[0023] The term "at least one" should be understood to include all combinations that can be presented from one or more of the associated items. For example, the meaning of "at least one of the first, second, and third items" may include all combinations of items that can be presented in two or more of the first, second, and third items, not just the first, second, or third items individually.

[0024] The features of each of the examples in this specification may be partially or fully combined or combined with each other, and various technical interlocking and driving mechanisms may be possible, and each example may be implemented independently of each other, or may be implemented together in a related relationship.

[0025] Hereinafter, examples of a display device and a vehicle including the same according to the embodiments of the present specification will be described in detail with reference to the accompanying drawings. In assigning reference numerals to components in each drawing, the same components may have the same reference numerals as much as possible even if they are shown in different drawings. In addition, the scales of the components shown in the accompanying drawings may be different from the actual scales for convenience of explanation, and therefore are not limited to the scales shown in the drawings.

[0026] It has been recognized that when a drive circuit unit of a display device is directly disposed on the back surface of a display panel, a problem occurs in that the drive circuit unit cannot transmit a desired sound when transmitting vibrations of the vibration generating module to the display panel. It has also been recognized that when a vibration generating module is applied to a display device for a vehicle having a relatively small size, a problem occurs in that the drive circuit unit is damaged by vibrations of the vibration generating module. Therefore, the inventors of the present specification conducted several experiments to reduce damage to the drive circuit unit caused by the vibration generating module through several experiments. Through several experiments, they invented a display device having a new structure that can prevent damage to the drive circuit unit caused by the vibration generating module and reduce contact between the drive circuit unit and the display panel, thereby reducing vibrations caused by the drive circuit unit and improving the sound of the vibration generating module. This will be described below.

[0027] FIG. 1 is a diagram showing a display device according to an embodiment of the present specification.

[0028] 1, the display device according to the embodiment of the present specification can output sound (DVS) (or display vibration sound) by vibration of the display panel 200 for displaying an image. Therefore, the display device according to the embodiment of the present specification can output sound (DVS) to the front of the screen (FD) of the display panel 200 by using the display panel 200 as a diaphragm for generating sound and outputting the sound (DVS), thereby enabling accurate sound transmission, improving sound quality, and enhancing the immersive feeling of the viewer or listener.

[0029] FIG. 2 is a view showing the rear of the display device shown in FIG. 1, FIG. 3 is an exploded oblique view of the display device shown in FIG. 1 and FIG. 2, FIG. 4 is a cross-sectional view along line II-II' shown in FIG. 2, and FIG. 5 is a cross-sectional view along line II-II' shown in FIG. 2.

[0030] Referring to Figures 2 to 5, a display device according to one embodiment of the present specification may include a front member 100, a display panel 200, a driving circuit section 300, a second support member (or second support) 400, a support frame 500, a first support member 600 (or first support) and a vibration generating module 700.

[0031] The front member 100 constitutes the frontmost structure of the display device and can play a role in protecting the screen of the display panel 200. The front member 100 can be disposed in front of the display panel 200. For example, the front member 100 can protect the display panel 200 from external impact by covering the front of the display panel 200. In addition, the front member 100 can generate sound (DVS) by vibrating together with the vibration of the display panel 200.

[0032] The front member 100 according to an embodiment may be made of a transparent plastic material, a glass material, or a reinforced glass material. As an example, the front member 100 may have any one of sapphire glass and gorilla glass, or a laminated structure thereof, but is not limited thereto. As another example, the front member 100 may include a transparent plastic material such as PET (polyethyleneterephthalate). The front member 100 may be made of reinforced glass in consideration of scratches and transparency. For example, the front member 100 may be a front structure, a front window, a cover window, a glass window, a cover screen, a screen cover, or window glass, but is not limited thereto.

[0033] 3, the front member 100 covers the remaining non-display area except the display area of ​​the display panel 200. The front member 100 according to an embodiment may include a transparent area 110 overlapping the display area of ​​the display panel 200 and a transparent area 130 overlapping the non-display area of ​​the display panel 200. The transparent area 130 may cover not only the non-display area of ​​the display panel 200 but also the non-display area where no image is displayed on the display device.

[0034] The front member 100 according to an embodiment may have a polygonal shape, such as a quadrilateral shape or a square shape, or may have a non-polygonal shape including at least one side having a curved shape.

[0035] The display panel 200 is disposed on the rear (or back) of the front member 100 and can display an image. The display panel 200 can function as a touch sensor that senses a user's touch on the front member 100. The display panel 200 can output sound (DVS) through vibration of the vibration generating module 700 or generate haptic feedback (or haptic vibration) in response to the user's touch.

[0036] The display panel 200 can be disposed on the rear surface of the front member 100 through a bonding process using a panel bonding material or a transparent adhesive material. The panel bonding material can include, but is not limited to, a pressure sensitive adhesive (PSA), an optically clear adhesive (OCA), or an optically clear resin (OCR).

[0037] The display panel 200 may include a self-emissive display panel or a curved self-emissive display panel. For example, the display panel 200 may include, but is not limited to, 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.

[0038] The display panel 200 according to an embodiment may have a polygonal shape including a quadrilateral shape (or a rectangle) 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 as the front member 100. As an example, the front member 100 may have a quadrilateral shape, and the display panel 200 may have a quadrilateral shape having a smaller size than the front member 100. As another example, the front member 100 may have a non-polygonal shape, and the display panel 200 may have a non-polygonal shape or a quadrilateral shape having a smaller size than the front member 100.

[0039] Referring to FIG. 4, a display panel 200 according to an embodiment may include a pixel array substrate 210 having a pixel array layer 213 including a plurality of pixels, and an encapsulation layer 230 covering the pixel array layer 213.

[0040] The pixel array substrate 210 may include a base substrate 211 and a pixel array layer 213 disposed on the base substrate 211 .

[0041] The base substrate 211 may include a plastic material or a glass material.

[0042] The pixel array layer 213 may include a pixel array having a plurality of pixels arranged in a display region defined on the base substrate 211 .

[0043] Each of the pixels may be provided in a pixel region provided by pixel driving lines including a plurality of gate lines and a plurality of data lines. Each of the pixels according to an embodiment may include a pixel circuit having at least two thin film transistors and at least one capacitor, and a light emitting element layer that emits light by a current supplied from the pixel circuit.

[0044] The light emitting element layer disposed in each of the plurality of pixels may include a first electrode connected to a corresponding pixel circuit, a light emitting element disposed on the first electrode, and a second electrode disposed on the light emitting element. As an example, the light emitting element may include an organic light emitting layer or a quantum dot light emitting layer. As another example, the light emitting element may include a micro light emitting diode.

[0045] The light emitting device layer according to an example may have a top emission structure or a front emission structure in which light emitted from the light emitting device passes through the encapsulation layer 230 and is emitted toward the front member 100. For example, in the light emitting device layer according to the 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.

[0046] The light emitting device layer according to another embodiment may have a bottom emission structure or a bottom emission structure in which light emitted from the light emitting device passes through the pixel array substrate 210 and exits toward the front member 100. For example, in the light emitting device layer according to the 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. Not limited thereto, the light emitting device layer may have a double-sided emission structure.

[0047] Referring to FIG. 4, the pixel array substrate 210 may further include a gate driving circuit 215 disposed in the non-display area of ​​the base substrate 211 .

[0048] The gate driving circuit 215 may be disposed in the non-display region of the base substrate 211 so as to be connected to the plurality of gate lines in a one-to-one relationship. The gate driving circuit 215 may be disposed in at least one of the left non-display region and the right non-display region of the base substrate 211. For example, the gate driving circuit 215 may be realized as a shift register including a plurality of transistors formed in the non-display region together with a process of forming thin film transistors in the pixel region.

[0049] 3 to 5, the sealing layer 230 is formed on the pixel array substrate 210 so as to surround the pixel array layer 213, thereby preventing or blocking oxygen and / or moisture from entering the light-emitting elements of the pixel array layer.

[0050] According to an embodiment, the encapsulation layer 230 may be formed in a multi-layer structure in which organic material layers and inorganic material layers are alternately stacked, but is not limited thereto. The inorganic material layer may function to prevent or block oxygen and / or moisture from entering the light emitting device. In addition, the organic material layer may be formed to a relatively thicker thickness than the inorganic material layer so as to cover particles that may be generated during the manufacturing process, but is not limited thereto.

[0051] The display panel 200 according to an embodiment may further include a protective substrate disposed on the encapsulation layer 230. The protective substrate (or encapsulation substrate) may be disposed on or coupled to the front surface of the encapsulation layer 230 via a filler or an adhesive. As an example, the protective substrate may be made of a transparent material when the light emitting device layer has an upper light emitting structure. As another example, the protective substrate may be made of a transparent material, an opaque material, or a metal material when the light emitting device layer has a lower light emitting structure. For example, when the light emitting device layer has an upper light emitting structure, the protective substrate may be omitted.

[0052] The display panel 200 according to an embodiment may further include an optical film.

[0053] The optical film may be a polarizing film for preventing or minimizing reflection of external light to improve visibility and contrast ratio of the display panel 200. The polarizing film can prevent or minimize reflection of external light by changing the external light reflected by thin film transistors and / or pixel driving lines, etc., provided on the pixel array substrate 210 into a circular polarization state.

[0054] When the light emitting device layer has an upper light emitting structure, the optical film according to an embodiment may be disposed (or attached) on the upper surface of the encapsulation layer 230 via a transparent adhesive member. When the display panel 200 has the optical film, the protective substrate may be omitted.

[0055] According to another embodiment, the optical film may be disposed (or attached) on the rear surface of the pixel array substrate 210 via a transparent adhesive member when the light emitting device layer has a bottom light emitting structure.

[0056] The display panel 200 according to an embodiment may further include a touch electrode layer for sensing a user's touch on the front member 100 .

[0057] The touch electrode layer may include a plurality of touch electrodes for sensing a touch by a user. The plurality of touch electrodes may act as a touch sensor for sensing a touch by a user based on a mutual capacitance scheme or a self-capacitance scheme.

[0058] The touch electrode layer according to an embodiment may be implemented as a touch panel including a plurality of touch electrodes. For example, an add-on type touch panel may be disposed on or coupled to the encapsulation layer 230 or an optical film when the light emitting device layer has an upper light emitting structure, and may be disposed on or coupled to the rear surface of the pixel array substrate 210 when the light emitting device layer has a lower light emitting structure.

[0059] According to another embodiment, the touch electrode layer may be formed directly on the encapsulation layer 230 by an in-cell method. For example, the touch electrode layer of the in-cell method may be formed directly on the front surface of the encapsulation layer 230 when the light emitting element layer has an upper light emitting structure.

[0060] The display panel 200 according to an embodiment may further include a color filter layer disposed on the encapsulation layer 230 to overlap with each of the pixels. The light emitting elements disposed in each of the pixels may emit white light. As an example, when the light emitting element layer has an upper emission structure, the color filter layer may be disposed on the encapsulation layer 230. As another example, when the light emitting element layer has a lower emission structure, the color filter layer may be disposed in the pixel array layer 213.

[0061] The display panel 200 according to an embodiment may further include a back plate 250 .

[0062] The backplate 250 may be formed to have the same shape as the pixel array substrate 210. As an example, when the light emitting device layer has an upper light emitting structure, the backplate 250 may be disposed on the rear surface (or rear surface) of the pixel array substrate 210 via a transparent adhesive member. As another example, when the light emitting device layer has a lower light emitting structure, the backplate 250 may be a protective substrate.

[0063] The backplate 250 can increase the rigidity of the display panel 200 and dissipate heat generated from the display panel 200. The backplate 250 according to an embodiment can include a metal material having high thermal conductivity. For example, the backplate 250 can be any one of aluminum, copper, silver, and magnesium, or an alloy material thereof, or can include a stainless steel material, but is not limited thereto. The backplate 250 can be expressed as a heat diffusion sheet, a heat diffusion layer, a heat diffusion plate, a heat sink, a heat dissipation sheet, a heat dissipation layer, a heat dissipation plate, or the like, but is not limited to the terms.

[0064] 2, 3 and 5, the driving circuit unit (or driving circuit) 300 may be disposed on a rear surface of the display panel 200 and connected to the display panel 200. For example, the driving circuit unit 300 may be connected to a pad unit 217 provided on a first edge portion (or one side edge portion) of the display panel 200. The driving circuit unit 300 may be embodied to display an image on a plurality of pixels disposed on a pixel array substrate 210 of the display panel 200. For example, the driving circuit unit 300 may display an image in a display area of ​​the display panel 200. The driving circuit unit 300 may sense a user's touch through a plurality of touch electrodes disposed in a touch electrode layer of the display panel 200.

[0065] The driving circuit unit 300 according to an embodiment may include at least one flexible circuit film 310, at least one data driving integrated circuit 320, and a printed circuit board 330. For example, the driving circuit unit 300 may include at least one flexible circuit film 310 and a plurality of data driving integrated circuits 320.

[0066] At least one flexible circuit film 310 may be connected to a plurality of pad parts 217 provided at a first edge part (or one edge part) of the pixel array substrate 210 of the display panel 200. The plurality of pad parts 217 may be arranged at regular intervals along the first direction (X). Thus, at least one flexible circuit film 310 may be arranged at regular intervals along the first direction (X) by being connected to the plurality of pad parts 217 having regular intervals. For example, one side of at least one flexible circuit film 310 may be arranged (or connected) to the pad part 217 provided on the display panel 200 through a film attachment process using an anisotropic conductive film.

[0067] The at least one flexible circuit film 310 may cover the rear surface of the support member 50. The at least one flexible circuit film 310 may be bent (or folded) from the pad portion 217 to the rear surface of the display panel 200. For example, the other side of the at least one flexible circuit film 310 may be disposed on an edge portion (or the first region) of the first region on the rear surface of the display panel 200. An intermediate portion (or a bent portion) between one side and the other side of the at least one flexible circuit film 310 may be bent (or folded) to cover one side of the display panel 200.

[0068] Each of the plurality of data driving integrated circuits 320 can be mounted on at least one flexible circuit film 310. Each of the plurality of data driving integrated circuits 320 can be mounted on the flexible circuit film 310 by a chip bonding process or a surface mounting process. Each of the plurality of data driving integrated circuits 320 converts the digital pixel data into an analog data signal according to the digital pixel data and the data control signal provided from the outside, and provides the analog data signal to the corresponding pixel.

[0069] The printed circuit board 330 may be commonly connected to each of the at least one flexible circuit film 310. The printed circuit board 330 according to an embodiment may be electrically connected to the other side of each of the at least one flexible circuit film 310 by a film attachment process using an anisotropic conductive film as an intermediate, and may be disposed on an edge portion of a first region of a rear surface of the display panel 200 by bending each of the at least one flexible circuit film 310. The edge portion of the first region of the rear surface of the display panel 200 may be a region in the rear surface of the display panel 200 where the at least one flexible circuit film 310 and the printed circuit board 330 are disposed. For example, the edge portion of the first region of the rear surface of the display panel 200 may be expressed as one side portion of the rear surface of the display panel 200. The printed circuit board 330 may be located between the rear surface of the display panel 200 and the first support member 600. The printed circuit board 330 according to an embodiment may be separated from the rear surface of the display panel 200 or may be floating, and may not be in direct contact with the rear surface of the display panel 200. For example, the rear surface of the printed circuit board 330 can be placed out of contact with the backplate 250 of the display panel 200 .

[0070] For example, when the display device according to an embodiment of the present specification is applied to an in-vehicle display device having a size relatively smaller than that of a large-area television display device, the size of the printed circuit board 330 disposed on the rear surface of the display panel 200 may occupy about 20% to 30% of the size of the display panel 200, and the printed circuit board 330 may be located or disposed on a vibration area of ​​the display panel 200 caused by the vibration of the vibration generating module 700. As a result, when the printed circuit board 330 is disposed so as to directly contact the rear surface of the display panel 200, the vibration of the display panel 200 caused by the acoustic (DVS) may be directly transmitted to the printed circuit board 330, thereby damaging the printed circuit board 330, or a peeling phenomenon may occur between the printed circuit board 330 and the flexible circuit film 310 due to the vibration or vibration of the printed circuit board 330, and the data driving integrated circuit 320 may be damaged due to the vibration or vibration of the flexible circuit film 310 caused by the vibration or vibration of the printed circuit board 330. Therefore, in the display device according to the embodiments of the present specification, the printed circuit board 330 is disposed 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, thereby preventing or minimizing transmission of vibrations of the display panel 200 to the printed circuit board 330, thereby preventing or minimizing damage to the printed circuit board 330 caused by vibrations of the display panel 200, and also preventing or minimizing peeling between the flexible circuit film 310 and the printed circuit board 330 and damage to the data driving integrated circuit 320.

[0071] The driving circuit unit 300 according to an embodiment may further include a control board 340 , a signal transmission member 350 , a timing control circuit 360 , and a user connector 370 .

[0072] The control board 340 may be disposed on the rear surface of the first support member 600 and connected to the printed circuit board 330 via a signal transmission member 350. The control board 340 may be connected to a display host system (or a display driving system) via a user connector 370. The control board 340 may provide a timing synchronization signal and image data 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 integrated circuit 320 via the signal transmission member 350, the printed circuit board 330, and the flexible circuit film 310.

[0073] The control board 340 may further include a voltage generating circuit for generating various driving voltages required to drive the display device.

[0074] The timing control circuit 360 is implemented on the control board 340 and receives timing synchronization signals and image data provided from a display host system via a user connector 370. For example, the timing synchronization signals may include a vertical synchronization signal, a horizontal synchronization signal, a data enable signal, a main clock signal, etc.

[0075] The timing control circuit 360 can generate gate control signals for controlling the driving timing of the gate driving circuit and data control signals for controlling the driving timing of each of the data driving integrated circuits 320 based on the timing synchronization signal. For example, the gate control signals can include at least one gate start signal, a plurality of gate shift clocks, etc. The data control signals can include a source start signal, a source shift clock, and a source output enable signal, etc.

[0076] The timing control circuit 360 can be mounted on the front surface of the printed circuit board 330, rather than on the control board 340. The voltage generating circuit can be mounted on the front surface of the printed circuit board 330, rather than on the control board 340. In this case, the control board 340 can be omitted.

[0077] The driving circuit unit 300 according to an embodiment may further include a touch driving circuit connected to the touch electrode layer of the display panel 200.

[0078] The touch driving circuit senses a user's touch through each of a plurality of touch electrodes arranged in the touch electrode layer, generates touch raw data, and provides coordinate information of the user's touch to a display host system based on the generated touch raw data.

[0079] The display host system may include a main board, various circuits mounted on a mother board, various storage media, peripheral devices, a keyboard, a power supply, and the like. The various circuits mounted on the mother board may include a central control circuit for processing various information, an image processing circuit for processing data under the control of the central control circuit, and an audio processing circuit for processing audio under the control of the central control circuit. The display host system processes various information, generates timing synchronization signals and video data to provide them to the control board 340, and generates driving signals including audio signals or haptic feedback signals to provide them to the control board 340. For example, the audio signal may be synchronized with the video data or may be asynchronous with the video data.

[0080] The display host system may execute an application program associated with touch coordinates corresponding to the coordinate information of the user's touch provided from the touch drive circuit, or execute a user interface based on the user's touch drawing, and may generate a drive signal including a haptic feedback signal corresponding to the coordinate information of the user's touch provided from the touch drive circuit.

[0081] The second support member 400 may be disposed between the rear surface of the display panel 200 and the driving circuit unit 300. The second support member 400 may be disposed between the rear surface of the display panel 200 and the printed circuit board 330 of the driving circuit unit 300. The second support member 400 may support the printed circuit board 330, thereby separating the printed circuit board 330 from the rear surface of the display panel 200. For example, the printed circuit board 330 may be disposed between the rear surface of the display panel 200 and the first support member 600, by being supported by the second support member 400.

[0082] A first surface (or front surface) of the second support member 400 may be disposed on the rear surface of the display panel 200, and a second surface (or rear surface) opposite to the first surface (or front surface) of the second support member 400 may be disposed on the rear surface of the printed circuit board 330. For example, the first surface (or front surface) of the second support member 400 may be disposed on the rearmost back plate 250 of the display panel 200. Thus, the printed circuit board 330 may be disposed on the rear surface of the display panel 200 via the second support member 400 while being supported by the second support member 400.

[0083] The second support member 400 according to an embodiment may be made of a vibration absorbing material or an elastic material that can be compressed to a certain degree, which can prevent or minimize the transmission of vibrations of the display panel 200 to the printed circuit board 330. For example, the second support member 400 may include, but is not limited to, a double-sided tape or a double-sided foam tape having a vibration absorbing layer (or an elastic layer).

[0084] The second support member 400 according to another embodiment may include a conductive double-sided tape or a conductive double-sided foam tape. In this case, the printed circuit board 330 may include a ground pattern (or a ground pattern) exposed on the rear surface. For example, the second surface (or rear surface) of the second support member 400 may be electrically connected to the ground pattern (or a ground pattern) exposed on the rear surface of the printed circuit board 330, thereby electrically connecting the ground pattern (or a ground pattern) exposed on the rear surface of the printed circuit board 330 to the back plate 250 of the display panel 200. As a result, the back plate 250 of the display panel 200 may have a function of grounding the ground pattern (or a ground pattern) of the printed circuit board 330 as well as a function of dissipating heat from the display panel 200.

[0085] The support frame 500 may be disposed on the rear surface of the front member 100. For example, the support frame 500 may surround a side surface of the display panel 200 or a side surface of the driving circuit unit 300. For example, the support frame 500 may surround a side surface of the display panel 200 and a side surface of the driving circuit unit 300. The support frame 500 may accommodate the driving circuit unit 300 of the display panel 200. The support frame 500 may have the same shape as the front member 100. The support frame 500 is disposed on the outermost side surface of the display device and is directly exposed to the outside of the display device. For example, the support frame 500 may be expressed as an outermost frame, an outermost molded object, an outermost mechanism, a guide frame, a guide panel, an edge frame, or a molded frame, and is not limited to these terms.

[0086] The support frame 500 may provide an air gap (AG) or a space for housing or accommodating the display panel 200 between the rear surface of the display panel 200 and the first support member 600 while supporting the first support member 600 .

[0087] The support frame 500 can be disposed on the edge portion of the rear surface of the front member 100 via a first connecting member (or a first joining member) 501 .

[0088] The first connecting member 501 may be interposed between an edge portion of the rear surface of the front member 100 and the support frame 500 to dispose the support frame 500 on the rear surface of the front member 100. The first connecting member 501 according to an embodiment may include, but is not limited to, an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer. The adhesive resin or adhesive layer of the first connecting member 501 according to an embodiment may include, but is not limited to, an acrylic-based or urethane-based adhesive material. For example, the adhesive resin or adhesive layer of the first connecting member 501 may include, but is not limited to, a urethane-based adhesive material having a relatively soft characteristic, rather than an acrylic-based adhesive material having a relatively high hardness, in order to prevent or minimize the transmission of vibration of the front member 100 caused by the vibration of the display panel 200 to the support frame 500.

[0089] The support frame 500 according to one example can include a frame portion 510 and a frame side portion 530 .

[0090] The frame unit 510 may be disposed on the rear surface of the front member 100. For example, the frame unit 510 may be disposed on an edge portion of the rear surface of the front member 100 and may include an opening 515 overlapping with the display panel 200. The frame unit 510 may be supported or disposed on the edge portion of the rear surface of the front member 100 via a first connecting member 501. The frame unit 510 according to an embodiment may have the same shape as the front member 100, but is not limited thereto. For example, the frame unit 510 may have the same polygonal shape as the front member 100, or a non-polygonal shape.

[0091] The opening 515 of the frame unit 510 may be defined by an inner surface of the frame unit 510. The opening 515 of the frame unit 510 may house or accommodate the display panel 200. The opening 515 of the frame unit 510 may have the same shape as the display panel 200, but may be larger than the display panel 200. For example, the opening 515 of the frame unit 510 may have the same polygonal shape as the display panel 200, or a non-polygonal shape.

[0092] The frame side 530 may be disposed on an inner edge portion of the frame portion 510. For example, the frame side 530 may be disposed perpendicular to or protrude from the inner edge portion of the frame portion 510. The frame side 530 may further form an opening 515. For example, the frame portion 510 and the frame side 530 may have a cross-sectional structure in the shape of a "┐┌". The frame side 530 may surround a side surface of the display panel 200 and / or a driving circuit unit 300 of the display panel 200.

[0093] 4, the support frame 500 according to an embodiment may further include a plurality of connecting portions 550 formed at regular intervals on an outer wall of the frame side portion 530. Each of the plurality of connecting portions 550 is a structure for disposing (or connecting) the first support member 600 to the support frame 500, and may protrude from the outer wall of the frame side portion 530. For example, each of the plurality of connecting portions 550 may include a hole. For example, the hole may be, but is not limited to, a screw hole.

[0094] 2 to 5, the first support member 600 may be disposed on the rear surface of the display panel 200. For example, the first support member 600 may be supported on an edge portion of the support frame 500 to cover the rear surface of the display panel 200. The first support member 600 may support or house (or accommodate) the vibration generating module 700. The first support member 600 may be formed to have the same shape as the support frame 500 and may be supported by the support frame 500.

[0095] The first support member 600 according to an embodiment serves as a support base for supporting the vibration generating module 700, and may include a metal material or a metal alloy material. For example, the first support member 600 may have any of the following materials: aluminum, aluminum alloy, magnesium alloy, iron-nickel alloy, and stainless steel, an alloy material thereof, or a joint 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 rear cover, a back cover, a rear member, or the like, but is not limited thereto.

[0096] The first support member 600 according to another embodiment may have a thickness of less than 0.5 mm to reduce the weight of the display device. In this case, the first support member 600 has a low rigidity due to its relatively thin thickness compared to the front member 100, and therefore the first support member 600 may be twisted by the vibration of the vibration generating module 700, and the vibration of the vibration generating module 700 may not be properly transmitted to the front member 100. It has been recognized that if the first support member 600 does not have sufficient rigidity, there is a 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, the vibration that is insufficient by the amount of the energy absorbed by the first support member 600 is transmitted to the display panel 200. As a result, the display panel 200 has difficulty in outputting sufficient sound due to the insufficient vibration of the vibration generating module 700. Therefore, it was recognized that when the energy or vibration of the vibration generating module 700 is lost, it is difficult to output a desired sound from the display panel 200. Therefore, the inventors of the present specification conducted several experiments to increase or reinforce the rigidity of the first support member 600. In order to increase the rigidity of the first support member 600, other structures can be added to the first support member 600, but in this case, there is a problem that the thickness of the display device increases. Through several experiments, a forming part (or a rigidity reinforcing structure) was formed on the first support member 600 in order to increase or reinforce the rigidity of the first support member 600 without increasing the thickness of the display device. In addition, the display device according to an example of the present specification may further include at least one reinforcing part for reinforcing the rigidity of the first support member 600. For example, the at least one reinforcing part may further include a reinforcing bar or a rigidity reinforcing structure. This will be described as follows.

[0097] The first support member 600 according to an example can include a first plate 610 , a side portion 620 , and a forming portion 630 .

[0098] The first plate 610 (or the 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 surface) of the display panel 200 and cover the rear surface of the display panel 200. The first plate 610 may be disposed on (or supported by) the frame side 530 of the support frame 500 by a plurality of first connecting members 613. The first connecting members 613 may be, but are not limited to, screws, bolts, or the like.

[0099] Each of the first connecting members 613 passes through a corresponding hole 611 among a plurality of holes 611 provided along the edge portion of the first plate 610 and is arranged (or connected) to a corresponding connecting portion 550 among a plurality of connecting portions 550 formed on the frame side portion 530 of the support frame 500, thereby allowing the first plate 610 to be arranged (or connected) to the support frame 500. The first plate 610 can be arranged (or connected) to or supported by the frame side portion 530 of the support frame 500 by the plurality of first connecting members 613. Therefore, the first plate 610 and the support frame 500 include a four-sided support structure, so that each of the four sides (or top, bottom, left and right sides) of the front member 100, the support frame 500, and the first support member 600 can have the same rigidity. Therefore, since the front member 100 and the first support member 600 have a four-sided support structure in which all four sides (top, bottom, left, and right) are supported by the support frame 500, the rigidity of the four support surfaces (top, bottom, left, and right edge portions) of the front member 100, the support frame 500, and the first support member 600 can all be the same, thereby allowing a primary vibration mode of the display panel 200 to be formed around the vibration generating module 700, and since the vibration area (or vibratory position) of the vibration generating module 700 and the maximum displacement position of the display panel 200 coincide with each other, the vibration efficiency of the vibration generating module 700 can be improved, and thereby the sound pressure, sound quality, and playback band of the sound generated by the vibration of the display panel 200 can be improved.

[0100] The sides 620 (or support sides) can be bent from the edges of the first plate 610. The sides 620 can increase the stiffness of the first support member 600 and provide a storage (or accommodation) space on the first plate 610 for storing the frame sides 530 of the support frame 500.

[0101] The side portion 620 can be disposed on the rear surface of the support frame 500. For example, the side portion 620 can be disposed on an edge portion of the rear surface of the support frame 500 via a second connecting member (or a second coupling member) 621. For example, the side portion 620 can be disposed on, coupled to, or connected to the frame portion 510 of the support frame 500 via the second connecting member 621.

[0102] The second connecting member 621 is interposed between the side portion 620 and the frame portion 510 of the support frame 500 to place, connect, or join the side portion 620 to the frame portion 510 of the support frame 500. The second connecting member 621 according to an embodiment may include, but is not limited to, an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad having an adhesive layer. The adhesive resin or adhesive layer of the second connecting member 621 according to an embodiment may include, but is not limited to, an acrylic-based or urethane-based adhesive material. For example, the adhesive resin or adhesive layer of the second connecting member 621 may include, but is not limited to, a urethane-based adhesive material having a relatively soft property, rather than an acrylic-based adhesive material having a relatively high hardness, in order to prevent or minimize the transmission of vibration of the first supporting member 600 caused by the vibration of the vibration generating module 700 to the support frame 500.

[0103] The forming portion 630 may be disposed on the first plate 610. The forming portion 630 may support the vibration generating module 700. The forming portion 630 may be formed in a concave or convex shape from the first plate 610. The forming portion 630 may increase or reinforce the rigidity of the first support member 600. For example, the forming portion 630 may be formed in a concave shape from the first plate 610 in order to reduce or minimize an increase in the thickness (or height) of the display device due to the thickness (or height) of the vibration generating module 700 and slim down the display device. However, the present invention is not limited to this shape.

[0104] The forming portion 630 may be formed concavely to have a rectangular shape from a front surface of the first plate 610 facing the rear surface of the display panel 200. The forming portion 630 may be formed concavely in the first plate 610 by protruding from the first plate 610 along a rear direction opposite to a front direction toward the rear surface of the display panel 200. For example, the forming portion 630 may be expressed as a first forming portion, a groove portion, a concave portion, a protruding portion, an indented portion, a receiving portion, a storage portion, or a rigidity reinforcing portion.

[0105] The forming unit 630 according to an embodiment may include a floor surface 631 facing the rear surface of the display panel 200, and an inclined surface 633 between the first plate 610 and the floor surface 631. The inclined surface 633 may provide a storage space (or a support space) on the floor surface 631 and increase or reinforce the rigidity of the first plate 610 and further the rigidity of the first support member 600.

[0106] The first supporting member 600 according to an embodiment may further include a hole 640 formed in the forming part 630. The hole 640 may be formed in the forming part 630 to have a size and shape that allows a part of the rear surface of the vibration generating module 700 to be inserted and accommodated therein.

[0107] According to an embodiment, the hole 640 may include a first hole 641 formed in a first region of the forming portion 630 and a second hole 643 formed in a second region of the forming portion 630 in line with the first hole 641.

[0108] The first hole 641 may be formed through a first region of the forming unit 630 overlapping with a first region (A1) of the rear surface of the display panel 200. For example, the first region (A1) of the rear surface of the display panel 200 may be one side region (or a left region) of the display panel 200 based on a center line (or a center line of a horizontal length) (CL) of the display panel 200 aligned in the first direction (X).

[0109] The second hole 643 may be formed through a second region of the forming unit 630 overlapping with a second region (A2) of the rear surface of the display panel 200. For example, the second region (A2) of the rear surface of the display panel 200 may be the other side region (or the right side region) of the display panel 200 based on the center line (CL) of the display panel 200.

[0110] 2 and 3, the first hole 641 and the second hole 643 according to an embodiment may have a circular shape, but are not limited thereto. For example, the first hole 641 and the second hole 643 may have an elliptical or polygonal shape, or may have a shape into which a part of the rear surface of the vibration generating module 700 can be inserted or accommodated.

[0111] The first support member 600 according to an embodiment may further include a cable hole 650 and a wiring hole 660 formed in the forming portion 630 .

[0112] The cable hole 650 may be formed in the forming part 630 between the first hole 641 and the second hole 643. The cable hole 650 may have a size and shape that allows the signal transmission member 350 for electrically connecting the printed circuit board 330 and the control board 340 to pass through. One side of the signal transmission member 350 may be connected to the printed circuit board 330 located between the rear surface of the display panel 200 and the first support member 600, and the other side of the signal transmission member 350 may pass through the cable hole 650 and be drawn out to the rear surface of the first support member 600 to be connected to the control board 340.

[0113] The wiring hole 660 may be formed on the floor surface 631 of the forming part 630 adjacent to the hole 640. The wiring hole 660 may have a size and shape that allows 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 pass through and be pulled out to the outside. The wiring hole 660 according to an example may include a first wiring hole 661 formed on the floor surface 631 of the forming part 630 adjacent to the first hole 641, and a second wiring hole 663 formed on the floor surface 631 of the forming part 630 adjacent to the second hole 643.

[0114] According to an embodiment, the first support member 600 may further include a second forming portion 670.

[0115] The second forming portion 670 according to an embodiment may be disposed on the first plate 610. For example, the second forming portion 670 may protrude from a middle portion of the first plate 610 excluding the edge portion toward the rear surface of the display panel 200. The second forming portion 670 may reinforce the rigidity of the first plate 610 by protruding from a middle portion of the first plate 610 excluding the edge portion toward the rear surface of the display panel 200 to have an inclined surface. The second forming portion 670 may support the forming portion 630 (or the first forming portion 630). Thus, the forming portion 630 may be formed concave from the second forming portion 670. For example, the second forming portion 670 may be expressed as an auxiliary forming portion, a groove portion, a concave portion, a convex portion, a recessed portion, a receiving portion, a storage portion, or a rigidity reinforcing portion, and is not limited to the terms. Therefore, the rigidity of the first support member 600 can be increased by the double reinforcement structure including the forming portion 630 and the second forming portion 670.

[0116] According to another embodiment, the second forming portion 670 protrudes from a middle portion, excluding an edge portion, of the first plate 610 toward a rear (or rear surface) direction of the first support member 600 opposite to the rear direction of the display panel 200, thereby reinforcing the rigidity of the first plate 610. The forming portion 630 may be formed in the second forming portion 670 as a concave or convex shape.

[0117] The first support member 600 according to an embodiment may further include a plurality of support parts 680. The plurality of support parts 680 may be support pins, brackets, mounting parts, or the like, and are not limited to the terms.

[0118] The plurality of supports 680 may be disposed on the rear surface of the first plate 610. For example, each of the plurality of supports 680 may be disposed along an edge portion of the rear surface of the first plate 610. Each of the plurality of supports 680 may be disposed on a separate structure or mounting base that supports a display device. In this way, the display device according to the embodiment of the present specification may be supported or disposed on a separate structure or mounting base via the plurality of supports 680.

[0119] 2 to 5, the vibration generating module 700 may be interposed between the first support member 600 and the display panel 200. The vibration generating module 700 is supported by the first support member 600 and may vibrate the display panel 200. The vibration generating module 700 vibrates in response to a drive signal including an audio signal or a haptic feedback signal, and may directly vibrate the display panel 200 to generate audio (DVS) due to the vibration of the display panel 200, or generate haptic feedback (or haptic vibration) in response to a user's touch.

[0120] The vibration generating module 700 may be realized as an acoustic generator or an acoustic generator using a coil (or a 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.

[0121] The vibration generating module 700 may include one sound generator or multiple sound generators 710, 730. The sound generators 710, 730 may be disposed or housed in a forming portion 630 provided in the first support member 600 to vibrate the display panel 200. For example, the sound generators 710, 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.

[0122] The vibration generating module 700 according to one embodiment may include a first sound generator 710 for vibrating a first region of the rear surface of the display panel 200 and a second sound generator 730 for vibrating a second region of the rear surface of the display panel 200.

[0123] The first sound generator 710 may be supported or housed (or accommodated) in a first region of the forming part 630 of the first support member 600, and may be disposed in a first region of the rear surface of the display panel 200. The first sound generator 710 is vibrated by a first driving signal including an acoustic signal or a haptic feedback signal to directly vibrate the first region of the rear surface of the display panel 200, thereby generating sound due to vibration of the display panel 200 (DVS) or generating haptic feedback (or haptic vibration) in response to a user's touch. For example, a part of the rear surface of the first sound generating part 710 may be inserted or housed in a first hole 641 formed in the first region of the forming part 630, thereby reducing the thickness of the display device. For example, the first sound generator 710 may be, but is not limited to, a first sound generating unit, a first sound generating part, a first sound generating device, a first vibration generating device, or a first vibration generator.

[0124] The second sound generator 730 may be supported or housed (or accommodated) in a second region of the forming part 630 in the first support member 600, and may be disposed in a second region on the rear surface of the display panel 200. The second sound generator 730 is vibrated by a second driving signal including an acoustic signal or a haptic feedback signal to directly vibrate the second region on the rear surface of the display panel 200, thereby generating sound due to vibration of the display panel 200 (DVS) or generating haptic feedback (or haptic vibration) in response to a user's touch. For example, a part of the rear surface of the second sound generator 730 may be inserted or housed in a second hole 643 formed in the second region of the forming part 630, thereby reducing the thickness of the display device. For example, the second sound generator 730 may be, but is not limited to, a second sound generating unit, a second sound generating part, a second sound generating device, a second vibration generating device, or a second vibration generator.

[0125] The first drive signal and the second drive signal can be the same or different from each other. For example, the first drive signal can include a left acoustic signal or a first haptic feedback signal for a first area (or left area) (A1) of the display panel 200. The second drive signal can include a right acoustic signal or a second haptic feedback signal for a second area (or right area) (A2) of the display panel 200.

[0126] Each of the first and second sound generators 710, 730 may be disposed on the first support member 600 symmetrically about the center line (or horizontal center line) (CL) of the display panel 200, and may include structures substantially identical to each other. Each of the first and second sound generators 710, 730 may be expressed as a vibration unit, a vibration part, an actuator, an exciter, or a transducer, and is not limited to the terminology.

[0127] Therefore, a display device according to one embodiment of the present specification can output sound (DVS) to the front (FD) of the display panel 200 by using the display panel 200 as a diaphragm for generating sound, thereby improving sound quality and enhancing the viewer's sense of immersion.

[0128] In addition, in the display device according to one embodiment of the present specification, the printed circuit board 330 connected to the display panel 200 is positioned between the display panel 200 and the first support member 600 and separated from the rear surface of the display panel 200, thereby preventing or minimizing damage to the printed circuit board 330 due to vibration of the display panel 200.

[0129] In addition, the display device according to an embodiment of the present specification has a four-sided support structure in which all four sides (top, bottom, left, and right) of the front member 100 and the first support member 600 are supported by the support frame 500, so that a primary vibration mode generated by the vibration of the vibration generating module 700 can be formed around the vibration generating module 700, and the vibration area of ​​the vibration generating module 700 and the maximum displacement position of the display panel 200 coincide with each other, so that the vibration efficiency of the vibration generating module 700 can be improved, thereby increasing the sound pressure, sound quality, and reproduction band of the sound generated by the vibration of the display panel 200. For example, the display device according to an embodiment of the present specification can output sound of 100 Hz to 20 kHz at a sound pressure level of 65 dB or more by the vibration of the display panel 200, and can output sound of 150 Hz to 20 kHz at a sound pressure level of 75 dB or more.

[0130] FIG. 6 is an enlarged view of part "A" shown in FIG. 4, and is a view for explaining a first acoustic generator of a vibration generating module according to an embodiment of the present specification.

[0131] 4 and 6, the first sound generator 710 of the vibration generating module 700 according to one embodiment of the present specification may be configured to vibrate the display panel 200 by a current of a driving signal including an acoustic signal or a haptic feedback signal applied based on Fleming's left hand rule.

[0132] In one embodiment, the first acoustic generator 710 may include a base plate 711 , a magnet 712 , a center pole 713 , a bobbin 714 , a coil 715 , an edge plate 716 , a damper 717 , and a lip portion 718 .

[0133] The base plate 711 is disposed on the first support member 600 and may be a main body of the first sound generator 710. The base plate 711 supports the magnet 712, the center pole 713, and the edge plate 716. The base plate 711 may be made of a metal material having magnetism such as iron (Fe). The base plate 711 may be expressed as a lower plate, a base frame, a yoke, or the like, and is not limited to these terms.

[0134] The base plate 711 includes a groove for receiving the magnet 712 and the bobbin 714. For example, the groove may be recessed from the upper surface of the base plate 711 to have a circular shape, and is not limited to a specific shape.

[0135] The base plate 711 according to an embodiment may be disposed on the floor of the forming section 630 of the first support member 600 via a fixing member such as an adhesive or double-sided tape.

[0136] A part of the back surface of the base plate 711 according to another embodiment may be inserted or accommodated in the first hole 641 formed in the forming part 630 of the first support member 600. In this case, the base plate 711 according to another embodiment may include a back protrusion 711a inserted into the first hole 641 formed in the forming part 630 of the first support member 600. The back protrusion 711a may protrude from the base plate 711 toward the first support member 600 to include a groove portion for accommodating the magnet 712 and the bobbin 714, and may protrude or be exposed to the outside of the back surface of the first support member 600 by penetrating the first hole 641 formed in the forming part 630 of the first support member 600. Thus, heat generated by the driving (or vibration) of the first sound generator 710 may be dissipated by an air-cooling method through the back surface of the base plate 711 protruding or exposed to the outside of the back surface of the first support member 600 by penetrating the first hole 641.

[0137] The base plate 711 according to another embodiment may be disposed in the forming portion 630 of the first support member 600 by a plurality of second connecting members 701 penetrating the floor surface of the forming portion 630 of the first support member 600. Each of the plurality of second connecting members 701 may be disposed in a plurality of holes formed in the corners of the base plate 711 penetrating the floor surface of the forming portion 630, thereby disposing the first sound generator 710 in the forming portion 630 of the first support member 600.

[0138] The magnet 712, center pole 713, bobbin 714, and coil 715 can be expressed as a magnetic circuit unit, magnetic circuit section, magnetic circuit device, self-vibrating section, self-vibrator, or self-vibrating unit that is arranged on the base plate 711 and vibrates the display panel 200.

[0139] The magnetic circuit according to an embodiment may have an external magnetic type or dynamic type structure including a magnet 712 arranged outside the coil 715, or an internal magnetic type or micro type structure including a magnet 712 arranged inside the coil 715. The first sound generator 710 including the magnetic circuit having an internal magnetic type structure has an advantage that leakage magnetic flux is small and the overall size can be small. The first sound generator 710 according to the embodiment of the present specification may have an external magnetic type or internal magnetic type structure, and the following description will be given assuming that it has an internal magnetic type structure.

[0140] The magnet 712 according to an embodiment is inserted into a groove of the base plate 711. The magnet 712 may be a cylindrical permanent magnet that can be inserted into the bobbin 714. According to an embodiment, the magnet 712 may be a sintered magnet such as barium ferrite, and the material may include one or more of ferric oxide (Fe2O3), barium carbonate (BaCO3), neodymium magnet, strontium ferrite (Fe12O19Sr) with improved magnetic component, alloy cast magnet of aluminum (Al), nickel (Ni), and cobalt (Co), etc. For example, the neodymium magnet may be neodymium-iron-boron (Nd-Fe-B).

[0141] The bobbin 714 according to an embodiment is disposed on the base plate 711 so as to surround the magnet 712. The bobbin 714 may have a circular or elliptical shape, but is not limited thereto. The oval shape may include an elliptical shape, a rectangular shape with rounded corners, or a non-circular curved shape having a width different from its height, but is not limited thereto. For example, the elliptical bobbin 714 may have a ratio of the diameter of the major axis to the diameter of the minor axis of 1.3:1 to 2:1. The elliptical bobbin 714 may improve the acoustics of the high frequency range more than the circular shape, and may generate less heat due to vibration, and thus may have excellent heat dissipation properties.

[0142] The coil 715 according to an embodiment is wound around the outer circumferential surface of the bobbin 714 and is supplied with a current (or voice current) of a driving signal from the outside. The coil 715 rises and falls together with the bobbin 714. The coil 715 may be expressed as a voice coil or the like, and is not limited to the term. When a current is applied to the coil 715, the entire bobbin 714 moves up and down based on Fleming's left-hand rule based on the magnetic field formed around the coil 715 and the external magnetic field formed around the magnet 712, and the vertical movement (or vibration) of the bobbin 714 causes the display panel 200 to vibrate, generating sound (DVS) or sound waves.

[0143] According to an embodiment, the coil 715 is wound around the outer periphery of the bobbin 714, so that heat generated from the coil 715 is transferred to the bobbin 714. In order to reduce image quality defects that affect the display panel 200 due to the heat of the bobbin 714, the coil 715 may be made of a material having relatively excellent heat dissipation properties. In addition, since the bobbin 714 vibrates up and down, biased vibration due to the up and down vibration occurs, and the biased vibration of the bobbin 714 may be affected by the weight of the bobbin 714. Since the weight of the bobbin 714 is affected by the weight of the coil 715, if the weight of the coil 715 is reduced, the biased vibration of the bobbin 714 can be reduced. Therefore, in consideration of the heat transferred to the bobbin 714 and the biased vibration of the bobbin 714, the coil 715 may be made of an aluminum material that has a higher thermal conductivity than copper, which is a material of general coils, and has a relatively excellent heat dissipation property and is relatively lighter than copper.

[0144] In addition, since aluminum forms an oxide film in air and is not easy to solder during the manufacture of the first sound generator 710, the coil 715 according to an embodiment of the present specification may include an aluminum layer (or a first metal layer) for heat dissipation and a metal cladding layer (or a second metal layer) surrounding the aluminum layer. The metal cladding layer may include any of copper (Cu), silver (Ag), and gold (Au). For example, the coil 715 may be copper clad aluminum wire. Since the metal cladding layer is formed in a thin film form on the outside of the first metal layer, it may not have a significant effect on the weight increase of the coil 715. The coil 715 according to an embodiment of the present specification may be about 60% lighter in weight than a coil made of only copper material or copper wire.

[0145] According to an embodiment, the bobbin 714 may be a structure formed of a material made of processed pulp or paper, aluminum, magnesium or alloys thereof, synthetic resin such as polyimide, etc. For example, the bobbin 714 may be implemented with a polyimide film that has relatively good heat dissipation properties and is relatively light in order to prevent localized image quality defects of the display panel 200 due to heat generated from the coil 715.

[0146] The polyimide film has physical properties that do not change over a wide temperature range from -273°C to 400°C, and has characteristics such as heat resistance, electrical insulation, flexibility, and non-flammability. The polyimide film has excellent thermal and mechanical strength, which can improve the reliability of the bobbin 714, and has excellent heat dissipation properties, which can reduce heat generation due to vibration of the bobbin 714. For example, the polyimide film may be KAPTON, which may be a condensation of pyromelic dianhydride and 4,4'-oxydianiline.

[0147] The center pole 713 is housed in or inserted into the bobbin 714 to guide the lifting and lowering of the bobbin 714. For example, by inserting the center pole 713 inside the bobbin 714, the outer circumferential surface of the center pole 713 is surrounded by the bobbin 714. The center pole 713 can be expressed as a lifting guide or pole pieces, and is not limited to these terms.

[0148] The edge plate 716 is disposed on the edge of the front surface of the base plate 711 and supports the damper 717. The edge plate 716 according to one embodiment may be formed at a certain height on the edge of the front surface of the base plate 711 so as to have the same shape as the bobbin 714. The edge plate 716 according to another embodiment may include a hollow portion formed at a certain height on the edge of the front surface of the base plate 711 and having the same shape as the bobbin 714.

[0149] The damper 717 may be disposed between the edge plate 716 and the magnetic circuit. For example, the damper 717 may be disposed between the edge plate 716 and the bobbin 714. The damper 717 may be expressed by other terms such as a spider, a suspension, or an edge, and is not limited to the terms.

[0150] According to an embodiment, one side of the damper 717 may be connected to the edge plate 716, and the other side of the damper 717 may be connected to an upper outer surface of the bobbin 714. The damper 717 has a bellows structure between one side and the other side, and can adjust the vibration of the bobbin 714 by contracting and relaxing according to the up and down movement of the bobbin 714. The damper 717 is connected between the bobbin 714 and the edge plate 716, and limits the vibration distance of the bobbin 714 through a restoring force. For example, when the bobbin 714 vibrates more than a certain distance or less than a certain distance, the bobbin 714 can return to its original state by the restoring force of the damper 717.

[0151] Since the first sound generator 710 is interposed between the display panel 200 and the first support member 600, it must have a relatively thin thickness in order to make the display device thinner or slimmer. Therefore, when the height (or thickness) of the bobbin 714 is reduced, there is a problem of reduced sound pressure. In order to solve the problem of reduced sound pressure caused by the reduced height of the bobbin 714, the damper 717 disposed around the bobbin 714 may be configured to have a large area. When the area of ​​the damper 717 is increased, the arrangement space for the wiring that applies current to the coil 715 becomes narrow, and interference between the wiring and the damper 717 may occur. Therefore, the damper 717 may be configured to be made of a conductor so that the damper 717 can also function as a wiring.

[0152] The damper 717 according to an embodiment may include a metal material electrically connected to the coil 715. For example, the damper 717 may be made of stainless steel or copper (Cu), but is not limited thereto.

[0153] The terminal unit 718 may include a pair of terminals disposed on one side of the base plate 711 and electrically connected to the damper 717. The terminal unit 718 may overlap a first wiring hole 661 formed in the forming unit 630 of the first support member 600 and be exposed to the outside of the rear surface of the first support member 600. The pair of terminals disposed in the terminal unit 718 may be electrically connected to a driving signal cable passing through the first wiring hole 661 and may receive a driving signal from a display host system via the driving signal cable.

[0154] According to an embodiment, the first acoustic generator 710 may further include a bobbin protection member 719 .

[0155] The bobbin protection member 719 is disposed on the front (or tip) of the bobbin 714 and transmits the elevation (or vibration) of the bobbin 714 to the rear of the display panel 200. The bobbin protection member 719 according to an example may have a ring shape disposed on the front of the bobbin 714, a disk shape covering the entire front of the bobbin 714, or a cap shape enveloping the front and upper outer surface of the bobbin 714, and is not limited to a particular shape. For example, the bobbin protection member 719 may be expressed as a bobbin ring, and is not limited to a particular term.

[0156] The bobbin protection member 719 may be disposed (or coupled) to the rear surface of the display panel 200 via a first adhesive member. The first adhesive member may be interposed between the back plate 250 of the display panel 200 and the bobbin protection member 719. The first adhesive member according to an example may include, but is not limited to, an adhesive or a double-sided tape.

[0157] The second sound generator 730 of the vibration generating module 700 according to the embodiment of the present specification may be disposed on the first support member 600 so as to be symmetrical to the first sound generator 710 about the center line (or the center line of the horizontal length) (CL) of the display panel 200. The second sound generator 730 includes substantially the same structure as the first sound generator 710, and therefore a duplicated description thereof will be omitted.

[0158] 7 is another enlarged view of the portion "A" shown in FIG. 4, in which an insulating member is additionally disposed between the display panel and the vibration generating module. Therefore, in the following description, the description of the remaining same components except for the insulating member and its related components will be simplified or omitted.

[0159] 7, a display device according to an embodiment of the present specification 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 may further include a blocking member 720.

[0160] The blocking member 720 (heat blocking member or heat insulating member) can prevent or minimize a local temperature rise of the display panel 200 caused by the heat generated by the first sound generator 710 due to the driving (or vibration) of the first sound generator 710, thereby preventing or minimizing the temperature rise of the display panel 200 caused by the heat generated by the first sound generator 710, thereby preventing a poor image quality of the display panel 200 caused by a sudden temperature difference in a local area of ​​the display panel 200 overlapping with the first sound generator 710. For example, the heat generated by the coil 715 of the first sound generator 710 is not transferred to the display panel 200 by the blocking member 720, but is dissipated by diffusing it in the first support member 600 through the base plate 711, or can be dissipated by an air-cooling method through the rear surface (or rear surface) of the base plate 711. The blocking member 720 can be configured to be the same or similar in size to the first sound generating unit 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 .

[0161] As an example, the blocking member 720 may have a film or plate shape including any 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 or plate shape including any of rubber, silicone, fiber reinforcement, and composite resin including fiber reinforcement, but is not limited thereto. For example, the fiber reinforcement may be any of carbon fiber reinforced plastics, glass fiber reinforced plastics, and graphite fiber reinforced plastics, or a combination thereof, but is not limited thereto.

[0162] The blocking member 720 according to an embodiment may be disposed between the rear surface of the display panel 200 and the bobbin 714 of the first sound generator 710, in which case the bobbin protection member 719 may be omitted. For example, the blocking member 720 may be disposed on the bobbin 714 of the first sound generator 710 and disposed or connected (or bonded) to the back plate 250 of the display panel 200 via an adhesive member.

[0163] According to another embodiment, the blocking member 720 may be disposed 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 the front surface of the bobbin protection member 719 and disposed or connected (or bonded) to the back plate 250 of the display panel 200 via an adhesive member.

[0164] The blocking member 720 may be disposed between the display panel 200 and the second sound generator 730 of the vibration generating module 700. As an example, the blocking member 720 may be disposed between the rear surface of the display panel 200 and the bobbin 714 of the second sound generator 730, in which case the bobbin protection member 719 of the second sound generator 730 may be omitted. As another example, the blocking member 720 may be disposed between the back plate 250 of the display panel 200 and the bobbin protection member 719 of the second sound generator 730.

[0165] The display device according to the embodiments of the present specification includes a blocking member 720 disposed between the display panel 200 and the vibration generating module 700, thereby preventing or minimizing local temperature rise of the display panel 200 due to heat generated from the vibration generating module 700, thereby preventing poor image quality of the display panel 200 caused by a sudden temperature difference in a local area of ​​the display panel 200 overlapping with the vibration generating module 700.

[0166] Fig. 8 is another enlarged view of part "A" shown in Fig. 2, in which the arrangement or connection (or coupling) structure between the vibration generating module and the first support member is modified. Therefore, in the following description, repeated descriptions of the remaining same configurations except for the arrangement or connection (or coupling) structure between the vibration generating module and the first support member will be simplified or omitted.

[0167] Referring to FIG. 8 , the first acoustic generator 710 of the vibration generating module 700 according to an embodiment of the present specification can be positioned, supported, or connected (or coupled) to the forming portion 630 of the first support member 600 by a plurality of second connecting members 701.

[0168] Each of the multiple second connecting members 701 can be connected or arranged on the inner surface of the first support member 600 via the vibration generating module 700, thereby supporting or connecting (or coupling) the vibration generating module 700 to the first support member 600. For example, each of the multiple second connecting members 701 can be arranged or connected to the floor surface of the forming unit 630 via an edge portion of the base plate 711 of the first sound generator 710 by an inner connecting manner, thereby supporting or connecting (or coupling) the first sound generator 710 to the floor surface of the forming unit 630.

[0169] The first support member 600 may further include a plurality of boss portions 635 disposed on the floor surface of the forming portion 630. Each of the plurality of boss portions 635 may include a hole protruding from the floor surface of the forming portion 630 overlapping with an edge portion of the base plate 711 of the first sound generator 710 and connecting with a corresponding one of the plurality of second connecting members 701. For example, each of the plurality of boss portions 635 may be inserted or housed in a corresponding one of a plurality of boss portions provided on the edge portion of the base plate 711 of the first sound generator 710.

[0170] The second acoustic generator 730 of the vibration generating module 700 according to the implementation of this specification, like the first acoustic generator 710, can be positioned, supported, or connected (or joined) to the floor surface of the forming section by an inner connection method using a plurality of second connecting members.

[0171] In the display device according to the embodiment of the present specification, the vibration generating module 700 is connected (or coupled) to the first support member 600 by an inner coupling method using a plurality of second coupling members 701, thereby increasing the supporting force or coupling force between the vibration generating module 700 and the first support member 600, and preventing the generation of noise caused by unnecessary vibration between the vibration generating module 700 and the first support member 600 when the vibration generating module 700 is driven (or vibrated). In addition, in the display device according to the embodiment of the present specification, each of the plurality of second coupling members 701 that supports or couples the vibration generating module 700 to the first support member 600 is not exposed to the rear (or back) of the first support member 600, and thus has a rear clean back structure, thereby improving the aesthetics of the design. In addition, in the display device according to the embodiment of the present specification, the thickness of the vibration generating module 700 can be reduced and configured between the display panel 200 and the support member 50, thereby reducing the thickness of the display device. In addition, since the vibration generating module 700 according to the embodiments of the present specification can be configured between the display panel 200 and the support member 50, a hole for arranging the vibration generating module 700 is not required on the rear surface of the first support member 600, thereby improving the degree of freedom according to the size or model of the display device.

[0172] Fig. 9 is another enlarged view of part "A" shown in Fig. 2, in which the arrangement or connection (or coupling) structure between the vibration generating module and the first support member is modified. Therefore, in the following description, repeated descriptions of the remaining same configurations except for the arrangement or connection (or coupling) structure between the vibration generating module and the first support member will be simplified or omitted.

[0173] Referring to FIG. 9, the first acoustic generator 710 of the vibration generating module 700 according to an embodiment of the present specification may be disposed on, supported by, or coupled to the forming portion 630 of the first support member 600 by a bidirectional connection method.

[0174] The display device according to the embodiment of the present specification may further include a plurality of coupling members 703 fastened (or coupled) to the plurality of second connecting members 701 passing through the first support member 600, respectively.

[0175] Each of the multiple coupling members 703 can be disposed or connected (or coupled) to a corresponding second connecting member 701 among the multiple second connecting members 701 through an edge portion of the base plate 711 of the first sound generator 710. For example, each of the multiple coupling members 703 can be inserted or housed in a corresponding second hole 711b among the multiple second holes 711b formed in the edge portion of the base plate 711 of the first sound generator 710. The multiple coupling members 703 according to one embodiment can be, but are not limited to, a nut or a pam nut having a head portion larger than the diameter of the second hole 711b.

[0176] Each of the multiple second connecting members 701 penetrates the floor surface of the forming section 630 of the first support member 600 and connects or couples with a corresponding one of the multiple second connecting members 701, thereby supporting or coupling the first sound generator 710 to the floor surface of the forming section 630. As a result, the first sound generator 710 can be disposed, supported, or coupled (or coupled) to the floor surface of the forming section 630 by a bidirectional coupling method (or an inner and outer coupling method) using the second connecting member 701 and the coupling member 703.

[0177] The first supporting member 600 may further include a hole 642 formed in a floor surface of the forming portion 630. The hole 642 may include a thread for connecting or fastening with the second connecting member 701 or may have a hole shape, but is not limited thereto.

[0178] The second acoustic generator 730 of the vibration generating module 700 according to an embodiment of this specification, like the first acoustic generator 710, can be placed on, supported by, or connected (or coupled) to the floor surface of the forming section by a bidirectional connection method using a plurality of second connecting members 701 and a coupling member 703.

[0179] In the display device according to the embodiments of the present specification, the vibration generating module 700 and the first support member 600 are connected or coupled by a bidirectional connection method using a second connecting member 701 and a coupling member 703, thereby increasing the supporting force or coupling force between the vibration generating module 700 and the first support member 600 and preventing noise caused by unnecessary vibrations between the vibration generating module 700 and the first support member 600 when the vibration generating module 700 is driven (or vibrates).

[0180] Fig. 10 is an exploded perspective view showing a display device according to another embodiment of the present specification, Fig. 11 is a view showing a support frame, a driving circuit unit and a holder arranged on the rear surface of the display panel shown in Fig. 10, and Fig. 12 is a cross-sectional view taken along line III-III' shown in Fig. 11, which shows a modification of the second support member of the display device shown in Figs. 1 to 9. Therefore, in the following description, repeated descriptions of the remaining same components except for the second support member and the components related thereto will be simplified or omitted.

[0181] 10 to 12, in a display device according to another embodiment of the present specification, the second support member 400 may include a holder 410 disposed on a support frame 500 and supporting the printed circuit board 330 of the driving circuit unit 300.

[0182] The holder 410 may space the printed circuit board 330 from the rear surface of the display panel 200, thereby preventing vibration of the display panel 200 from being transmitted to the printed circuit board 330. The printed circuit board 330 may be disposed on the holder 410. The first support member 600 may protect the printed circuit board 330.

[0183] The holder 410 according to one embodiment may include a second plate 411 and a pair of bridges 413 .

[0184] The second plate 411 (or a holder plate) may be disposed between the rear surface of the display panel 200 and the printed circuit board 330. The second plate 411 may be spaced a certain distance from the rear surface of the display panel 200. For example, the second plate 411 may have a larger size than the printed circuit board 330.

[0185] The second plate 411 according to an embodiment may be disposed on the rear surface of the printed circuit board 330 via a second adhesive member 430 .

[0186] The second adhesive member 430 may be interposed between the rear surface of the second plate 411 facing the first support member 600 and the printed circuit board 330. The second adhesive member 430 according to an embodiment may be made of a vibration absorbing material capable of preventing or minimizing the transmission of vibration of the display panel 200 to the printed circuit board 330 or an elastic material capable of being compressed to a certain degree. For example, the second adhesive member 430 may include, but is not limited to, a double-sided tape or a double-sided foam tape having a vibration absorbing layer (or an elastic layer).

[0187] The pair of bridges 413 can support the second plate 411 by bending (or folding) both sides of the second plate 411 and connecting it to the support frame 500. For example, the pair of bridges 413 can support the second plate 411 by bending (or folding) both edges or both sides of the second plate 411 and connecting it to the support frame 500. The pair of bridges 413 can be arranged on the frame side 530 of the support frame 500 by a plurality of third connecting members 415. The third connecting members 415 can be screws, bolts, etc., but are not limited thereto. Thus, the second plate 411 can be separated at a certain distance from the rear surface of the display panel 200 by connecting it to the support frame 500 or supporting it by the pair of bridges 413 arranged thereon.

[0188] The second support member 400 according to the embodiment of the present specification may further include a buffer member 450.

[0189] The buffer member 450 may be disposed between the second plate 411 of the holder 410 and the rear surface of the display panel 200. The buffer member 450 may prevent physical contact between the rear surface of the display panel 200 and the printed circuit board 330 when the display panel 200 vibrates, and may block or minimize transmission of the vibration of the display panel 200 to the printed circuit board 330.

[0190] The cushioning member 450 according to an embodiment may be disposed between the rear surface of the display panel 200 and the first support member 600. For example, the cushioning member 450 may be disposed along both edge portions of the second plate 411 in the longitudinal direction (X) of the second plate 411. The cushioning member 450 may be made of a vibration absorbing material capable of preventing or minimizing the transmission of vibration of the display panel 200 to the printed circuit board 330 or an elastic material capable of being compressed to a certain degree. For example, the cushioning member 450 may include, but is not limited to, a double-sided tape or a double-sided foam tape having a vibration absorbing layer (or an elastic layer).

[0191] Fig. 13 is a diagram showing a display device according to still another embodiment of the present specification, and Fig. 14 is a cross-sectional view taken along line IV-IV' in Fig. 13, which shows the display device shown in Figs. 1 to 12 with a balance member added. Fig. 13 shows the rear surface of the display panel from which the first support member and the vibration generating module have been removed in the display device shown in Fig. 2. Therefore, in the following description, repeated descriptions of the remaining same components except for the balance member and the components related thereto will be simplified or omitted.

[0192] 13 and 14, in a display device according to another embodiment of the present specification, a balancing member 800 may be disposed on a rear surface of a display panel 200. For example, the balancing member 800 may be disposed on a third region of the rear surface of the display panel 200, excluding a first region overlapping with the printed circuit board 330 of the driving circuit unit 300 and a second region overlapping with the vibration generating module 700. The balancing member 800 may equalize the vibration balance between the first region and the third region of the display panel 200, which is generated by the vibration of the vibration generating module 700. For example, the balancing member 800 may prevent or minimize a vibration deviation between the first region, where the printed circuit board 330 is disposed, and the third region, where the printed circuit board 330 is not disposed, on the rear surface of the display panel 200.

[0193] For example, the printed circuit board 330 (or the first printed circuit board or the main printed circuit board) has a mass and therefore can act as a mass body with respect to the first region of the display panel 200. As a result, when the display panel 200 vibrates, a vibration deviation or a maximum vibration displacement deviation occurs between the first region where the printed circuit board 330 is disposed and the third region where the printed circuit board 330 is not disposed, and the vibration efficiency of the vibration generating module 700 may decrease. Therefore, the balance member 800 acts as a mass body with respect to the third region where the printed circuit board 330 is not disposed, thereby achieving a vibration balance between the first region where the printed circuit board 330 is disposed and the third region where the printed circuit board 330 is not disposed, thereby increasing the vibration efficiency of the vibration generating module 700.

[0194] The balancing member 800 according to an embodiment may include a second printed circuit board 810 and a third adhesive member 830 .

[0195] The second printed circuit board 810 may be disposed on the rear surface of the display panel 200. For example, the second printed circuit board 810 may be disposed in a third region of the rear surface of the display panel 200, excluding a first region overlapping with the printed circuit board 330 of the driving circuit unit 300 and a second region overlapping with the vibration generating module 700. The second printed circuit board 810 according to an embodiment may be made of the same material as the printed circuit board 330 and may be larger in size than the printed circuit board 330. For example, the second printed circuit board 810 may be expressed as another printed circuit board, a dummy printed circuit board, an auxiliary printed circuit board, or the like, and is not limited to the terms.

[0196] The second printed circuit board 810 according to an embodiment may include a main board portion 811 disposed at an edge portion of the second area of ​​the rear surface of the display panel 200 in line with an edge portion of the first area of ​​the rear surface of the display panel 200, a first board extension portion 813 extending from a middle portion of the main board portion 811 toward an edge portion of the first area of ​​the rear surface of the display panel 200, a second board extension portion 815 extending from an edge portion of one side of the main board portion 811 toward an edge portion of the first area of ​​the rear surface of the display panel 200, and a third board extension portion 817 extending from an edge portion of the other side of the main board portion 811 toward an edge portion of the first area of ​​the rear surface of the display panel 200. For example, the second printed circuit board 810 may have a "└┴┘" shape extending from an edge portion of the second area of ​​the rear surface of the display panel 200 toward an edge portion of the first area of ​​the rear surface of the display panel 200.

[0197] The first substrate extension 813 and the second substrate extension 815 can be aligned with each other on either side of the placement area of ​​the first acoustic generator 710 of the vibration generating module 700, and the first substrate extension 813 and the third substrate extension 817 can be aligned with each other on either side of the placement area of ​​the first acoustic generator 710 of the vibration generating module 700.

[0198] The third adhesive member 830 can be interposed between the rear surface of the display panel 200 and the second printed circuit board 810. For example, the second printed circuit board 810 can be disposed (or coupled) to the rear surface of the display panel 200 via the third adhesive member 830.

[0199] The third adhesive member 830 according to an embodiment may be made of a vibration absorbing material or an elastic material that can be compressed to a certain degree in order to prevent or minimize noise caused by vibration of the second printed circuit board 810 due to vibration of the display panel 200. For example, the third adhesive member 830 may be made of a material that can prevent or minimize transmission of vibration of the display panel 200 to the printed circuit board 330. For example, the third adhesive member 830 may include, but is not limited to, a double-sided tape or a double-sided foam tape having a vibration absorbing layer (or an elastic layer).

[0200] Therefore, the display device according to another embodiment of the present specification has the same effects as the display device shown in Figures 1 to 12, and can implement vibration balance of the display panel 200 by the balance member 800, thereby increasing the vibration efficiency of the vibration generating module 700, increasing the reproduction band of the sound generated by the vibration of the display panel 200, and increasing the sound pressure of the sound.

[0201] As another example, the balancing member 800 according to the embodiment of the present disclosure may be applied to a display device according to another embodiment of the present disclosure, as shown in FIGS.

[0202] Fig. 15 is a diagram showing a display device according to still another embodiment of the present specification, and Fig. 16 is a cross-sectional view taken along line V-V' shown in Fig. 15, which is a modified configuration of the vibration generating module arranged in the display device shown in Figs. 1 to 14. Therefore, in the following description, repeated descriptions of the remaining same configurations except for the vibration generating module and its related configurations will be simplified or omitted.

[0203] 15 and 16, in a display device according to another embodiment of the present specification, a vibration generating 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.

[0204] Since the first sound generator 710 and the second sound generator 730 are substantially the same as the first sound generator 710 and the second sound generator 730 of the display device described above, the same reference numerals are given to them, and duplicate descriptions thereof may be omitted or simplified.

[0205] Each of the first sound generator 710 and the second sound generator 730 according to an embodiment can vibrate the display panel 200 to output a sound in a first range. The sound in the first range band according to an embodiment can be output forward from a middle portion of the display panel 200. The sound in the first range band can have a frequency in a low range band. For example, the low range band can be less than 200 Hz, but is not necessarily limited thereto, and can be less than 3 kHz.

[0206] The third sound generator 750 may vibrate the third rear surface of the display panel 200 to output a sound in a second range band higher than the sound in the first range band. The fourth sound generator 770 may vibrate the fourth rear surface of the display panel 200 to output a sound in the second range band. For example, the third rear surface of the display panel 200 may include an edge portion of the third rear surface, a left edge portion, or an edge portion on one side. The fourth rear surface of the display panel 200 may include an edge portion of the fourth rear surface, a right edge portion, or an edge portion on the other side.

[0207] According to an embodiment, the sound in the second frequency band may be output forward from an edge portion of the display panel 200. The sound in the second frequency band may have a frequency in the mid-high frequency band or the treble frequency band. For example, the mid-frequency band may be, but is not limited to, 200 Hz to 3 kHz, and may be 3 kHz to 5 kHz. The treble frequency band may be, but is not limited to, 3 kHz or more, and may be 5 kHz or more.

[0208] The third sound generator 750 can output a first sound (or a left sound) together with the first sound generator 710, and the fourth sound generator 770 can output a second sound (or a right sound) together with the second sound generator 730. The third and fourth sound generators 750, 770 can complement or improve the sounds of the first and second sound generators 710, 730, for example, high-frequency sound. Furthermore, each of the first sound generator 710, the second sound generator 730, the third sound generator 750, and the fourth sound generator 770 can output multi-channel spatial sound or stereo sound.

[0209] According to an embodiment, the third sound generator 750 may include a first piezoelectric element 751 disposed on an edge portion of the third rear surface of the display panel 200 .

[0210] The first piezoelectric element 751 may include a piezoelectric material layer having a piezoelectric effect.

[0211] The piezoelectric material layer may include a piezoelectric material that generates vibrations in response to an electric field. Here, the piezoelectric material has the characteristic that a potential difference is generated by dielectric polarization due to the relative position change of positive and negative ions when pressure or twisting is applied to the crystal structure due to an external force, and vibrations are generated by the electric field caused by the applied voltage.

[0212] The piezoelectric layer according to an embodiment may include a polymeric piezoelectric, a thin film piezoelectric, a composite piezoelectric, or a single crystal ceramic or polycrystalline ceramic piezoelectric. The polymeric piezoelectric according to an embodiment may include PVDF (polyvinylidene fluoride), P(VDF-TrFe) (poly(vinylidene fluoride-trifluoroethylene)), or P(VDF-TeFE) (poly(vinylidene fluoride-tetrafluoroethylene). The thin film piezoelectric according to an embodiment may include ZnO, CdS, or AlN. The composite piezoelectric according to an embodiment may include PZT (lead zirconate titanate)-PVDF, PZT-silicon rubber, PZT-epoxy, PZT-foam polymer, or PZT-foam urethane. The monocrystalline ceramic piezoelectric material according to an embodiment may include aluminum phosphate (e.g., berlinite, α-AlPO4), silicon dioxide (e.g., α-SiO2), lithium niobate (LiNbO3), terbium molydbate (Tb2(MoO4)3), lithium tetraborate (Li2B4O7), or ZnO. The polycrystalline ceramic piezoelectric material according to an embodiment may include PZT, PT, PZT-complex perovskite, or barium titanate (BaTiO3).

[0213] As another example, the first piezoelectric element 751 may include a plurality of first portions and a plurality of second portions disposed between the plurality of first portions. Each of the plurality of first portions may be made of a ceramic-based material capable of realizing a relatively high vibration, or may be made of a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure may have a piezoelectric and inverse piezoelectric effect and may be a plate-shaped structure having orientation. As another example, the inorganic material portion formed 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 configured in each of the plurality of first portions may include, but is not limited to, a PZT (lead zirconate titanate)-based material including lead (Pb), zirconium (Zr), and titanium (Ti), or a PZNN (lead zirconate nickel niobate)-based material including lead (Pb), zinc (Zn), nickel (Ni), and niobium (Nb). In addition, the inorganic material portion may include, but is not limited to, at least one of CaTiO3, BaTiO3, and SrTiO3 that does not include lead (Pb).

[0214] The organic material portion of each of the second parts may be made of an organic material or an organic polymer having a more flexible property than the inorganic material portion of the first part. For example, each of the second parts may include an organic material, an organic polymer, an organic piezoelectric material, or an organic non-piezoelectric material. For example, each of the second parts may be expressed as an adhesive part, an expandable part, a bending part, a damping part, or a soft part having flexibility, but is not limited thereto.

[0215] According to an embodiment, the organic material portion may include at least one of an organic piezoelectric material and an organic non-piezoelectric material.

[0216] The organic material portion including the organic piezoelectric material can improve the overall durability of the first piezoelectric element 751 by absorbing the impact applied to the inorganic material portion (or the first portion) and can provide a certain level of piezoelectric characteristics. The organic piezoelectric material according to an embodiment can be an organic material having electroactive properties. For example, it can include at least one of PVDF (Polyvinylidene fluoride), beta-PVDF (β-Polyvinylidene fluoride), and PVDF-TrFE (Polyvinylidene-trifluoroethylene), but is not limited thereto.

[0217] The organic material part including the organic non-piezoelectric material is made of a curable resin composition and an adhesive including the same, and thus absorbs impacts applied to the inorganic material part (or the first part), thereby improving the overall durability of the first piezoelectric element 751. The organic non-piezoelectric material according to an embodiment may include at least one of an epoxy-based polymer, an acrylic-based polymer, and a silicone-based polymer, but is not limited thereto.

[0218] Therefore, by configuring the sound generator with a plurality of first parts and a plurality of second parts respectively disposed between the plurality of first parts, it is possible to provide a vibration generating module capable of improving piezoelectric characteristics, rigidity, and flexibility. Therefore, by configuring a vibration generating module with improved piezoelectric characteristics, rigidity, and flexibility of the sound generator, it can be applied to a flexible display device, and has an advantageous advantage in being applied to, for example, an in-vehicle display device. For example, the flexible display device may be a foldable display apparatus, a bendable display apparatus, a wearable display apparatus, a rollable display apparatus, and the like, but is not limited to these examples.

[0219] According to an embodiment, the first piezoelectric element 751 may include electrodes on the upper and lower surfaces thereof. The electrodes may be made of, but are not limited to, any 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. For example, the electrodes may be made of, but are not limited to, indium tin oxide (ITO), zinc tin oxide (IZO), or a molybdenum-titanium (Mo-Ti) alloy.

[0220] The first piezoelectric element 751 according to an embodiment may be disposed on an edge portion of the third rear surface of the display panel 200 via a third connecting member 753 (or a third coupling member). The third connecting member 753 may be, but is not limited to, a double-sided tape or a self-curing adhesive.

[0221] The third acoustic generator 750 according to an embodiment may further include a first protective member 755 disposed on a rear surface of the first piezoelectric element 751. For example, the first protective member 755 may be disposed on a rear surface of an electrode disposed on the rear surface of the first piezoelectric element 751. As another example, the first protective member 755 may be disposed on each of the upper and lower surfaces (or rear surface) of the first piezoelectric element 751.

[0222] The first protective member 755 may be formed to be larger than the first piezoelectric element 751 and may be disposed on the rear surface of the first piezoelectric element 751. The first protective member 755 may prevent damage to the first piezoelectric element 751 due to electrical shock such as static electricity and / or physical shock. The first protective member 755 according to an example may include a single-sided insulating tape having an adhesive layer or an insulating single-sided foam tape disposed on the rear surface of the first piezoelectric element 751. For example, the first protective member 755 may be, but is not limited to, a polyimide (PI) film, a polyethylene terephthalate (PET) insulating tape, or a polyvinyl chloride (PVC) insulating tape.

[0223] The fourth sound generator 770 may include a second piezoelectric element 771 disposed on an edge portion of the fourth rear surface of the display panel 200 via a fourth connecting member 773. The fourth sound generator 770 may further include a second protective member 775 disposed on a rear surface of the second piezoelectric element 771. The fourth sound generator 770 having such a configuration is substantially the same as the third sound generator 750, except that it is disposed on an edge portion of the fourth rear surface of the display panel 200 via the fourth connecting member 773, and therefore a repeated description thereof will be omitted.

[0224] Therefore, the display device according to the other embodiment of the present specification can have the same effects as the display device shown in Fig. 1 to Fig. 9. In addition, the display device according to the embodiment of the present specification can output a sound having a wide sound range by outputting a sound of a first sound range through vibration of the display panel 200 in response to vibration of the first and second sound generators 710 and 730 of a coil type having a relatively excellent low-frequency sound output characteristic, and outputting a sound of a second sound range band generated by vibration of the display panel 200 in response to vibration of the third and fourth sound generators 750 and 770 of a piezoelectric type having a relatively excellent high-frequency sound output characteristic to the front of the display panel 200, and can output a stereo sound or a multi-channel 3D sound.

[0225] As another example, the third sound generator 750 and the fourth sound generator 770 according to the embodiments of the present specification may be similarly applied to the display device shown in Figures 10 to 12. Also, the third sound generator 750 and the fourth sound generator 770 according to the embodiments of the present specification may be similarly applied to the display device shown in Figures 13 and 14, and the balance member may be disposed in the remaining area of ​​the third region of the display panel excluding the area where the third sound generator 750 and the fourth sound generator 770 are disposed.

[0226] FIG. 17 is a diagram showing a vehicle according to an embodiment of the present specification, in which the display device according to an embodiment of the present specification shown in FIGS. 1 to 16 is applied to a vehicle.

[0227] Referring to FIG. 17, a vehicle according to an embodiment of the present specification may include a dashboard (DB), an instrument panel module (IPM), and an infotainment module (ITM).

[0228] The dashboard (DB) may include a first area (DA) toward the driver's seat, a second area (PA) toward the passenger seat, and a third area (MA) between the first area (DA) and the second area (PA).

[0229] The instrument panel module (IPM) may include a first display (DIS1) disposed in a first area (DA) of the dashboard (DB).

[0230] The first display (DIS1) can provide the driver with various information such as driving-related information, such as speed, fuel amount, and engine RPM, and vehicle status information, while the vehicle is in operation.

[0231] The first display (DIS1) includes the display device shown in Fig. 1 to Fig. 16, and therefore a duplicated description thereof will be omitted. As a result, the first display (DIS1) can display an image corresponding to vehicle operation information provided from the host system of the vehicle on the display panel. Also, the first display (DIS1) can output, to the driver's seat side, a sound generated by vibration of the display panel linked to vibration of a vibration generating module according to a sound drive signal provided from the host system of the vehicle.

[0232] The infotainment module (ITM) (or infotainment system) may include a second display (DIS2) disposed in a third area (MA) (or center fascia) of the dashboard (DB).

[0233] The second display (DIS2) is connected to vehicle convenience systems, such as an audio system, an air conditioning system, a multimedia system, etc., installed inside the vehicle, and a navigation system, and can display control icons for controlling the corresponding vehicle convenience systems and navigation information provided by the navigation system, and can provide sounds corresponding to audio signals provided from the audio system and / or the multimedia system to vehicle occupants.

[0234] The second display (DIS2) includes the display device shown in Figs. 1 to 16, and therefore a duplicated description thereof will be omitted. As a result, the second display (DIS2) can display control icons for controlling a vehicle convenience system and navigation information provided from a navigation system on a display panel. Also, the second display (DIS2) can directly output sound generated from a display panel that vibrates due to vibration of a vibration generating module caused by an audio signal from an audio system and / or a multimedia system. And, the second display (DIS2) can recognize a user's touch through a touch electrode layer disposed on the display panel to perform an interface with the user.

[0235] The second display (DIS2) may have a length that extends into the second area (PA) of the dashboard (DB). For example, the second display (DIS2) may be positioned across the third area (MA) and the second area (PA) of the dashboard (DB).

[0236] Therefore, a vehicle according to one embodiment of the present specification includes an instrument panel module (IPM) having a first display (DIS1) to which a display device according to an embodiment of the present specification shown in Figures 1 to 16 is applied, so that sound generated by vibration of the first display (DIS1) can be output toward the driver's face and transmitted directly to the driver's ears, thereby transmitting sound that is substantially close to the original sound to the driver.

[0237] In addition, in a vehicle according to an embodiment of the present specification, the display device according to an embodiment of the present specification shown in Figures 1 to 16 includes an infotainment module (ITM) having a second display (DIS2), so that sound generated by vibration of the second display (DIS2) can be output to the ears of the driver and / or vehicle passengers, thereby providing the driver and / or vehicle passengers with sound that is substantially close to the original sound.

[0238] In addition, a vehicle according to one embodiment of the present specification can use a first display (DIS1) of an instrument panel module (IPM) and a second display (DIS2) of an infotainment module (ITM) as speakers for audio output, and can transmit two-channel stereophonic sound to a driver and / or vehicle passengers through sounds generated by vibrations of the first and second displays (DIS1, DIS2).

[0239] Fig. 18 is a diagram showing a vehicle according to another embodiment of the present specification, which is a modified version of the infotainment module shown in Fig. 17. Therefore, in the following description, repeated descriptions of the remaining same configurations, except for the infotainment module and its related configurations, will be simplified or omitted.

[0240] 18, an infotainment module (ITM) according to an embodiment of the present specification can be installed in a movably manner in a third area (MA) of a dashboard (DB). The infotainment module (ITM) can be stored (or accommodated) inside the dashboard (DB) when the vehicle is turned off or when an occupant of the vehicle operates, and can be protruded above the dashboard (DB) when the vehicle is turned on or when an occupant of the vehicle operates.

[0241] An infotainment module (ITM) according to one embodiment may include a second display (DIS2) and a display elevator.

[0242] The second display (DIS2) is substantially the same as the second display (DIS2) shown in FIG. 17, so a duplicated description thereof will be omitted.

[0243] The display elevator is disposed inside the third area (MA) of the dashboard (DB) and can support the second display (DIS2) so that it can be raised and lowered. For example, the display elevator can raise the second display (DIS2) to protrude above the dashboard (DB) when the vehicle power is turned on or by an operation of the vehicle occupant. The display elevator can lower the second display (DIS2) to be stored (or accommodated) inside the dashboard (DB) when the vehicle power is turned off or by an operation of the vehicle occupant.

[0244] Therefore, vehicles according to other embodiments of the present specification can have the same effects as the vehicle shown in FIG.

[0245] Fig. 19 is a diagram showing a vehicle according to still another embodiment of the present specification, which is a modified version of the infotainment module shown in Fig. 18. Therefore, in the following description, repeated descriptions of the remaining same components, except for the infotainment module and its related components, will be simplified or omitted.

[0246] Referring to FIG. 19, an infotainment module (ITM) according to an embodiment of the present specification may include a second display (DIS2) arranged to be raised and lowered in a third area (MA) of the dashboard (DB), a display elevator that raises and lowers the second display (DIS2), and a third display (DIS3) installed in the second area (PA) of the dashboard (DB).

[0247] The second display DIS2 and the display elevator are substantially the same as the second display DIS2 and the display elevator shown in FIG. 18, respectively, and therefore a duplicated description thereof will be omitted.

[0248] The third display (DIS3) may share the functions of the second display (DIS2). For example, the third display (DIS3) may be connected to vehicle convenience systems, such as an audio system, an air conditioning system, and a multimedia system, installed inside the vehicle, and a navigation system, to display control icons for controlling the corresponding vehicle convenience systems and navigation information provided by the navigation system, and provide a passenger in the front seat of the vehicle with sound corresponding to an audio signal provided by the audio system and / or the multimedia system. In addition, the third display (DIS3) may transmit and receive video information or audio information via wireless communication with a wireless communication device of the passenger in the front seat, and may display the received video information on the display panel.

[0249] The third display (DIS3) includes the display device according to the embodiment of the present specification shown in FIGS. 1 to 16, so a duplicated description thereof will be omitted.

[0250] The third display (DIS3) may have a length that extends into the third area (MA) of the dashboard (DB), for example, the third display (DIS3) may be positioned across the second area (PA) and the third area (MA) of the dashboard (DB).

[0251] The first display (DIS1) of the instrument panel module (IPM) and the second and third displays (DIS2, DIS3) of the infotainment module (ITM), respectively, can be used as speakers for audio output within the vehicle.

[0252] Therefore, a vehicle according to another embodiment of the present specification can have the same effect as the vehicle shown in FIG. 17, and can use the first display (DIS1) of the instrument panel module (IPM) and the second and third displays (DIS2, DIS3) of the infotainment module (ITM) as speakers for audio output, and can transmit three-channel stereophonic sound to the driver and / or vehicle passengers through the sound generated by the vibration of each of the first to third displays (DIS1, DIS2, DIS3).

[0253] Fig. 20 is a diagram showing a vehicle according to still another embodiment of the present specification, which is a modified version of the infotainment module shown in Fig. 17. Therefore, in the following description, repeated descriptions of the remaining same components, except for the infotainment module and its related components, will be simplified or omitted.

[0254] Referring to FIG. 20, the infotainment module (ITM) according to an embodiment of the present specification may further include a fourth display (DIS4) arranged on the back of the driver's seat (or driver's seat) (DS), and a fifth display (DIS5) arranged on the back of the passenger seat (or passenger seat) (PS).

[0255] The fourth display (DIS4) may be located in or embedded in the headrest of the driver's seat (DS), and the fifth display (DIS5) may be located in or embedded in the headrest of the passenger's seat (PS).

[0256] Since the fourth and fifth displays (DIS4, DIS5) each include a display device according to the embodiment of the present specification shown in FIGS. 1 to 16, a duplicated description thereof will be omitted.

[0257] The fourth and fifth displays (DIS4, DIS5) can share the functions of the second display (DIS2). In addition, the fourth and fifth displays (DIS4, DIS5) can transmit and receive video information or audio information via wireless communication with the wireless communication devices of the passengers in the rear seats, and can display the received video information on the display panel.

[0258] The first display (DIS1) of the instrument panel module (IPM) and the second, fourth and fifth displays (DIS2, DIS4, DIS5) of the infotainment module (ITM) can each be used as a speaker for audio output within the vehicle.

[0259] Therefore, a vehicle according to another embodiment of the present specification can have the same effect as the vehicle shown in FIG. 17, and can use the first display (DIS1) of the instrument panel module (IPM) and the second, fourth and fifth displays (DIS2, DIS4, DIS5) of the infotainment module (ITM) as speakers for audio output, and can transmit four-channel stereo sound to the driver and / or vehicle passengers through the sound generated by the vibration of each of the first, second, fourth and fifth displays (DIS1, DIS2, DIS4, DIS5).

[0260] Furthermore, in a vehicle according to still another embodiment of the present specification, the second display (DIS2) of the infotainment module (ITM) may be installed in a movably upward and downward direction in the third area (MA) of the dashboard (DB) as shown in FIG. 18. The infotainment module (ITM) may further include a third display (DIS3) as shown in FIG. 19. In this case, the first display (DIS1) of the instrument panel module (IPM) and at least one of the second to fifth displays (DIS2, DIS3, DIS4, DIS5) of the infotainment module (ITM) may be used as a speaker for audio output, and audio generated by vibration of a display panel included in at least one of the first to fifth displays (DIS1, DIS2, DIS3, DIS4, DIS5) may be transmitted to the driver and / or vehicle passengers.

[0261] Fig. 21 is a diagram showing a vehicle according to still another embodiment of the present specification, in which a speaker is additionally configured inside the vehicle shown in any one of Figs. 17 to 20. Therefore, in the following description, the redundant description of the remaining same configurations except for the additional speaker and its related configurations will be simplified or omitted.

[0262] There is a problem that it is difficult to output a desired sound inside a vehicle because of the strong reverberation and the many bendings where sound waves collide. Therefore, when a display device according to the embodiment of the present specification is configured inside a vehicle or in a vehicle body, it is possible to realize a vehicle with improved sound quality by realizing a small-sized speaker disposed in the vehicle.

[0263] Referring to FIG. 21, a vehicle according to another embodiment of the present specification may further include at least one of 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 decor speaker (rear dashboard speaker: RDS).

[0264] The dashboard speaker (DBS) may include at least one of a first dashboard speaker (DBS1) disposed on the left edge of the dashboard (DB) and a second dashboard speaker (DBS2) disposed on the right edge 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 of 150 Hz to 20 kHz having a mid-range or full-range.

[0265] The left front door speaker (LFS) may include at least one of the first to third left front speakers (LFS1, LFS2, LFS3).

[0266] The first left front speaker (LFS1) may be disposed in a first portion of the left front door adjacent to the dashboard. The second left front speaker (LFS2) may be disposed in a center portion of the left front door. The third left front speaker (LFS3) may be disposed in 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 embodied in the display device shown in FIGS. 1 to 16. In this case, the left front speaker may output sound by vibration of the display panel and may also function as a left side mirror that displays an image from a left rear camera disposed on the left side of the vehicle.

[0267] The right front door speaker (RFS) may include at least one of the first to third right front speakers (RFS1, RFS2, RFS3).

[0268] The first right front speaker (RFS1) may be disposed in a first portion of the right front door adjacent to the dashboard. The second right front speaker (RFS2) may be disposed in a center portion of the right front door. The third right front speaker (RFS3) may be disposed in 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 embodied in the display device shown in FIGS. 1 to 16. In this case, the right front speaker may output sound by vibration of the display panel and may also function as a right side mirror that displays an image from a right rear camera disposed on the right side of the vehicle.

[0269] The first left front speaker (LFS1) and the first right front speaker (RFS1) may each be a speaker that outputs sound having a mid-range or full-range frequency of 150 Hz to 20 kHz. Sounds output from the first left front speaker (LFS1) and the first right front speaker (RFS1) may be output in combination.

[0270] The second left front speaker (LFS2) and the second right front speaker (RFS2) may be tweeters or speakers that output sound in the range of 2 kHz to 20 kHz. Sounds output from the first and second left front speakers (LFS1, LFS2) and the first and second right front speakers (RFS1, RFS2) may be output in combination.

[0271] The third left front speaker (LFS3) and the third right front speaker (RFS3) may each be one of a woofer, a mid-woofer, and a sub-woofer, and may be a speaker that outputs sound of 150 Hz to 20 kHz having a mid-range or full-range. Sounds output from the third left front speaker (LFS3) and the third right front speaker (RFS3) may be output in combination.

[0272] The left rear door speaker (LRS) may include at least one of the first to third left rear speakers (LRS1, LRS2, LRS3).

[0273] The first left rear speaker (LRS1) may be located in a first portion of the left rear door adjacent to the left front door. The second left rear speaker (LRS2) may be located in a middle portion of the left rear door. The third left rear speaker (LRS3) may be located in a second portion of the left rear door adjacent to the rear deco (rear dashboard: RD).

[0274] The right rear door speaker (RRS) may include at least one of the first to third right rear speakers (RRS1, RRS2, RRS3).

[0275] The first right rear speaker (RRS1) may be located in a first section of the right rear door adjacent to the right front door. The second right rear speaker (RRS2) may be located in a middle section of the right rear door. The third right rear speaker (RRS3) may be located in a second section of the right rear door adjacent to the rear deco (rear dashboard: RD).

[0276] The first left rear speaker (LRS1) and the first right rear speaker (RRS1) may be tweeters or speakers that output sound in the range of 2 kHz to 20 kHz. Sounds output from the first left rear speaker (LRS1) and the first right rear speaker (RRS1) may be output in combination.

[0277] The second left rear speaker (LRS2) and the second right rear speaker (RRS2) may be speakers that output sound of 150 Hz to 20 kHz having a mid-range or full-range. Sounds output from the first and second left rear speakers (LRS1, LRS2) and the first and second right rear speakers (RRS1, RRS2) may be output in combination.

[0278] The third left rear speaker (LRS3) and the third right rear speaker (RRS3) may each be one of a woofer, a mid-woofer, and a sub-woofer, and may be a speaker that outputs sound of 150 Hz to 20 kHz having a mid-range or full-range. Sounds output from the third left rear speaker (LRS3) and the third right rear speaker (RRS3) may be output in combination.

[0279] The rear decor speaker (RDS) can include at least one of a first rear decor speaker (RDS1) arranged on the left edge of the rear decor (rear dashboard: RD), a second rear decor speaker (RDS2) arranged on the right edge of the rear decor (RD), and a third rear decor speaker (RDS3) arranged in the middle of the rear decor (RD).

[0280] Each of the first rear decor speaker (RDS1) and the second rear decor speaker (RDS2) may be a speaker that outputs sound of 150 Hz to 20 kHz having a mid-range or full-range.

[0281] The third rear decor speaker (RDS3) may be any one of a woofer, a mid-woofer, and a sub-woofer, and may be a speaker that outputs sound from 60 Hz to 150 Hz, at least one tweeter, or a speaker that outputs sound from 2 kHz to 20 kHz.

[0282] The speakers arranged on the left and right sides of the vehicle can be configured symmetrically based on the direction of viewing the front windshield. For example, the frequency of the sound output from the speaker arranged on the left side of the vehicle can be one or more of 150Hz to 20kHz and 2kHz to 20kHz, and the frequency of the sound output from the sound generating device arranged on the right side of the vehicle can be one or more of 150Hz to 20kHz and 2kHz to 20kHz. When the speakers are configured in this way, the sense of localization of the sound image output from the left and right sides of the vehicle can be improved.

[0283] Therefore, a vehicle according to another embodiment of the present specification can use at least one of the first display (DIS1) of the instrument panel module (IPM) and the second to fifth displays (DIS2, DIS3, DIS4, DIS5) of the infotainment module (ITM) as a speaker for audio output, and can provide multi-channel surround stereo sound to the driver and / or vehicle passengers by outputting sound generated by vibration of a display panel included in at least one of the first to fifth displays (DIS1, DIS2, DIS3, DIS4, DIS5) and at the same time outputting sound from at least one speaker disposed on the dashboard (DB), rear decoration (RD), and at least one of the left and right doors.

[0284] Fig. 22 is a graph showing the measurement of the sound pressure level characteristic of the display device according to one embodiment of the present specification. The sound pressure level in Fig. 22 was measured using an APX525 manufactured by Audio Precision Co., Ltd., by applying a sine sweep at 100 to 20 kHz, and measuring the sound pressure at a position 1 m away from the display panel. The sine sweep can be a method of performing a sweep in a short period of time, but is not limited to this method. In Fig. 22, the horizontal axis indicates frequency (Hz) and the vertical axis indicates sound pressure level (dB).

[0285] As can be seen from Fig. 22, the sound output from the display device according to the embodiment of the present specification shown in Figs. 1 to 9 has a reproduction band of 100Hz to 20kHz and is output at a sound pressure level of 65dB or more, for example, sound of 150Hz to 20kHz is output at a sound pressure level of 75dB or more. Therefore, the display device according to the embodiment of the present specification can output sound of 100Hz to 20kHz by vibration of the display panel without a separate speaker.

[0286] Furthermore, the sound pressure of the sound decreases in proportion to the square of the distance. In general, considering that the sound pressure level of a person speaking at a distance of 0.5 m is about 60 dB, the sound pressure level at which a listener at a distance of about 2 m can easily hear the sound output from the display device must satisfy about 72 dB to 75 dB. Thus, based on a sound pressure level of 74 dB, the display device according to an embodiment of the present specification can provide a 150 Hz to 20 kHz sound with a sound pressure level of 75 dB or more to a listener at a distance of about 2 m.

[0287] The display device according to the embodiment of the present specification can be applied to various applications that output sound by vibration of a display panel. The display device according to the embodiment of the present specification can be applied to a mobile device, a video phone, a smart watch, a watch phone, a wearable apparatus, a foldable apparatus, a rollable apparatus, a bendable apparatus, a flexible apparatus, a curved apparatus, an electronic organizer, an electronic book, a portable multimedia player (PMP), a personal digital assistant (PDA), an MP3 player, a mobile medical device, a desktop PC, a laptop PC, a netbook computer, a workstation, a navigation system, a vehicle navigation system, a vehicle display device, a vehicle device, a television, a wallpaper device, a signage device, a game device, a notebook computer, a monitor, a camera, a video camera, and a home appliance. In addition, the vibration generating module of the present specification can be applied to an organic light-emitting lighting device or an inorganic light-emitting lighting device. When the vibration generating module is applied to a lighting device, it can function as both a light and a speaker.

[0288] A display device and a vehicle including the same according to an embodiment of the present specification can be described as follows.

[0289] A display device according to an embodiment of the present specification may include a display panel configured to display an image, a front member arranged on a front side of the display panel, a driving circuit arranged on a rear side of the display panel and connected to the display panel, a support frame configured to surround a side of the display panel and a side of the driving circuit unit, a first support supported by the support frame and arranged on the rear side of the display panel, and a vibration generating module supported by the first support and vibrating the display panel.

[0290] According to some embodiments of the present disclosure, the display device may further include a second support disposed between the rear surface of the display panel and the driving circuit, and the driving circuit may include a flexible circuit film coupled to the display panel, and a printed circuit board coupled to the flexible circuit film on the rear surface of the display panel and supported by the second support.

[0291] According to some embodiments herein, the second support can be a double-sided tape or can include a double-sided tape that includes foam.

[0292] According to some embodiments of the present specification, the device may further include another printed circuit board arranged in a third area excluding the first area overlapping the printed circuit board and the second area overlapping the vibration generating module.

[0293] According to some embodiments of the present disclosure, the driving circuit may be disposed on a rear surface of the display panel and may include a printed circuit board coupled to the display panel, and the second support may be disposed on the support frame and may include a holder for supporting the printed circuit board.

[0294] According to some embodiments of the present disclosure, the holder may include a second plate that is attached to the printed circuit board via an adhesive member and spaced apart from the rear surface of the display panel, and a pair of bridges that are bent from both sides of the second plate and connected to the support frame.

[0295] According to some embodiments herein, the second support may further include a cushioning member disposed between the second plate and the rear surface of the display panel.

[0296] According to some embodiments of the present specification, the driving circuit may further include a printed circuit board arranged on the rear surface of the display panel, and a buffer member arranged between the rear surface of the display panel and the printed circuit board.

[0297] According to some embodiments of the present specification, the first support may include a first plate arranged on the rear side of the display panel, a side portion bent from one side of the first plate and supported by the support frame, and a first forming portion arranged on the first plate to support the vibration generating module.

[0298] According to some embodiments of the present specification, the first support may further include a second forming portion protruding from a middle portion of the first plate toward a rear side of the display panel, and a hole disposed in the first forming portion, wherein a portion of the rear side of the vibration generating module is received in the hole, and the second forming portion may surround the first forming portion.

[0299] According to some embodiments of the present specification, the vibration generating module may include a first acoustic generator disposed in a first region of the first forming portion and vibrating the first region of the rear surface of the display panel, and a second acoustic generator disposed in a second region of the first forming portion and vibrating the second region of the rear surface of the display panel.

[0300] According to some embodiments herein, the vibration generating module may include a first acoustic generator disposed in a first region of the first forming portion and vibrating a first region of the rear surface of the display panel, a second acoustic generator disposed in a second region of the first forming portion and vibrating a second region of the rear surface of the display panel, a third acoustic generator vibrating a third rear surface of the rear surface of the display panel, and a fourth acoustic generator vibrating a fourth rear surface of the rear surface of the display panel.

[0301] A display device according to one embodiment of the present specification may include a display panel configured to display an image, a front member arranged on a front side of the display panel, a first support arranged on a rear side of the display panel, a vibration generating module supported by the first support to vibrate the display panel, and a printed circuit board arranged between the rear side of the display panel and the first support.

[0302] According to some embodiments of the present disclosure, the display device may further include a second support disposed between the rear surface of the display panel and the printed circuit board.

[0303] According to some embodiments herein, the second support can be a double-sided tape or can include a double-sided tape that includes foam.

[0304] According to some embodiments of the present specification, the sensor may further include a balance member arranged in a remaining third region excluding the first region overlapping the printed circuit board and the second region overlapping the vibration generating module.

[0305] According to some embodiments of the present disclosure, the balance member may include another printed circuit board having a size larger than the printed circuit board, and an adhesive member between the rear surface of the display panel and the other printed circuit board.

[0306] According to some embodiments of the present disclosure, the display device may further include a support frame that surrounds the sides of the display panel and supports the first support, and a second support that is disposed between the rear surface of the display panel and the printed circuit board.

[0307] According to some embodiments of the present specification, the second support may include a holder that supports the printed circuit board, and the holder may include a second plate that is arranged on the back surface of the printed circuit board via an adhesive member, and a pair of bridges that are bent from both sides of the second plate and connected to the support frame.

[0308] According to some embodiments herein, the second support may further include a buffer member disposed between the rear surface of the display panel and the holder.

[0309] According to some embodiments herein, the support frame may surround a side surface of the printed circuit board.

[0310] According to some embodiments of the present disclosure, the display device may further include a buffer member disposed between the rear surface of the display panel and the printed circuit board.

[0311] According to some embodiments of the present specification, the display device may further include a support frame surrounding a side of the display panel and arranged between the front member and the first support, and the first support may include a first plate arranged on the rear of the display panel, a side portion bent from one side of the first plate and supported by the support frame, and a first forming portion arranged on the first plate and supporting the vibration generating module.

[0312] According to some embodiments of the present specification, the first support further includes a hole disposed in the first forming portion, and a portion of the rear surface of the vibration generating module can be received in the hole in the first forming portion.

[0313] According to some embodiments of the present specification, the first support may further include a second forming portion protruding from a middle portion toward a rear surface of the display panel, and a hole disposed in the first forming portion, and a portion of the rear surface of the vibration generating module may be received in the hole, and the second forming portion may surround the first forming portion.

[0314] According to some embodiments of the present specification, the vibration generating module may include a first sound generator disposed in a first region of the first forming part and vibrating a first region of the rear surface of the display panel, and a second sound generator disposed in a second region of the first forming part and vibrating a second region of the rear surface of the display panel. According to some embodiments of the present specification, the vibration generating module may include a first sound generator disposed in the first region of the first forming part and vibrating a first region of the rear surface of the display panel, a second sound generator disposed in the second region of the first forming part and vibrating a second region of the rear surface of the display panel, a third sound generator configured to vibrate a third rear surface of the display panel, and a fourth sound generator configured to vibrate a fourth rear surface of the display panel.

[0315] According to some embodiments herein, the third sound generator may include a piezoelectric material and the fourth sound generator may include a piezoelectric material.

[0316] According to some embodiments of the present disclosure, the display device may further include a heat insulating member disposed between the vibration generating module and the display panel.

[0317] According to some embodiments herein, the device may further include a coupling member configured to couple the vibration generating module to an inner surface of the first support.

[0318] A vehicle according to some embodiments of the present specification includes an instrument panel module having a dashboard having a first area facing a driver's seat, and a first display disposed in the first area of ​​the dashboard, the first display including a display panel configured to display an image, a front member disposed on a front side of the display panel, a drive circuit disposed on a rear side of the display panel and coupled to the display panel, a support frame configured to surround a side of the display panel and a side of the drive circuit portion, a first support supported by the support frame and disposed on the rear side of the display panel, and a vibration generating module supported by the first support and vibrating the display panel.

[0319] A vehicle according to some embodiments of the present disclosure includes an instrument panel module having a dashboard having a first area facing a driver's seat, and a first display disposed in the first area of ​​the dashboard, the first display including a display panel configured to display an image, a front member disposed in front of the display panel, a first support disposed on a rear of the display panel, a vibration generating module supported by the first support and vibrating the display panel, and a printed circuit board disposed between the rear of the display panel and the first support.

[0320] A vehicle according to an embodiment of the present specification includes a dashboard having a first area facing the driver's seat, a second area facing the passenger seat, and a third area between the first and second areas, an instrument panel module having a first display arranged in the first area of ​​the dashboard, and an infotainment module having at least one of a second display arranged in the third area of ​​the dashboard, a third display arranged in the second area of ​​the dashboard, a fourth display arranged on the back of the driver's seat, and a fifth display arranged on the back of the passenger 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 images, a front member arranged on a front side of the display panel, a drive circuit arranged on the back of the display panel and connected to the display panel, a support frame configured to surround a side of the display panel and a side of the drive circuit unit, a first support supported by the support frame and arranged on the back of the display panel, and a vibration generating module supported by the first support and vibrating the display panel.

[0321] A vehicle according to an embodiment of the present specification includes a dashboard having a first area facing the driver's seat, a second area facing the passenger seat, and a third area between the first and second areas, an instrument panel module having a first display arranged in the first area of ​​the dashboard, and an infotainment module having at least one of a second display arranged in the third area of ​​the dashboard, a third display arranged in the second area of ​​the dashboard, a fourth display arranged on the back of the driver's seat, and a fifth display arranged on the back of the passenger 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 images, a front member arranged in front of the display panel, a first support arranged on the back of the display panel, a vibration generating module supported by the first support and vibrating the display panel, and a printed circuit board arranged between the back of the display panel and the first support.

[0322] According to some embodiments herein, the display panel may include a touch electrode layer for sensing a user's touch.

[0323] According to some embodiments of the present disclosure, the first display may output sound based on vibration of the display panel that is vibrated by vibration of the vibration generating module.

[0324] According to some embodiments of the present specification, at least one of the first to fifth displays can output sound based on vibration of a display panel that is vibrated by vibration of a vibration generating module.

[0325] A vehicle according to an embodiment of the present specification includes a dashboard including a display device, and the display device may include a display panel configured to display an image, a front member arranged on a front side of the display panel, a drive circuit arranged on a rear side of the display panel and connected to the display panel, a support frame configured to surround a side of the display panel and a side of the drive circuit unit, a first support supported by the support frame and arranged on the rear side of the display panel, and a vibration generating module supported by the first support and vibrating the display panel.

[0326] A vehicle according to an embodiment of the present specification includes a dashboard including a display device, the display device including a display panel configured to display an image, a front member arranged on a front side of the display panel, a first support arranged on a rear side of the display panel, a vibration generating module supported by the first support and vibrating the display panel, and a printed circuit board arranged between the rear side of the display panel and the first support.

[0327] According to some embodiments of the present disclosure, the vehicle may further include a left front door, a right front door, a left rear door, a right rear door, and a rear deco, and may further include at least one of at least one dashboard speaker disposed in the dashboard, at least one left front door speaker disposed in the left front door, at least one right front door speaker disposed in the right front door, at least one left rear door speaker disposed in the left rear door, at least one right rear door speaker disposed in the right rear door, and at least one rear deco speaker disposed in the rear deco.

[0328] The features, structures, effects, etc. described in the examples of the present specification above are included in at least one example of the present specification, and are not necessarily limited to only one example. Furthermore, the features, structures, effects, etc. exemplified in at least one example of the present specification can be combined or modified in other examples by a person having ordinary knowledge in the field to which the present specification belongs. Therefore, the contents related to these combinations and modifications should be interpreted as being included in the scope of the present specification.

[0329] The present specification described above is not limited to the above-mentioned embodiments and the attached drawings, and it will be apparent to those skilled in the art to which the present specification pertains that multiple substitutions, modifications and changes are possible within the scope of the technical matters of the present specification. Therefore, the scope of the present specification is indicated by the claims set forth below, and all modifications or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present specification.

Claims

1. a display panel configured to display video; a driving circuit on the back surface of the display panel; A support frame including an opening; a first support on a rear surface of the support frame; a second support on a rear side of the display panel; and one or more acoustic generators on the first support and configured to vibrate the display panel; the display panel and the driving circuitry are housed in the opening of the support frame; the opening of the support frame has a size larger than the display panel; the second support is between a rear surface of the display panel and the driving circuit; The second support includes a holder on the support frame.

2. a front member on a front surface of the display panel; The apparatus of claim 1 , wherein the support frame is between the front member and the first support so as to surround at least one or more of a side of the display panel and a side of the drive circuitry.

3. The apparatus of claim 1 , wherein the second support comprises a double-sided tape or a double-sided tape containing foam.

4. The first support is a first plate on the back side of the display panel; and The apparatus of claim 1 , comprising one or more forming sections in the first plate in which the one or more acoustic generators are housed.

5. The apparatus of claim 4 , wherein the first support further comprises a side portion bent from one side of the first plate.

6. the driving circuit includes a printed circuit board on the back surface of the display panel; The apparatus of claim 1 , wherein the first support covers a back surface of the display panel and the printed circuit board.

7. The device described in claim 1, wherein the first support covers a back surface of the display panel.

8. The apparatus of claim 1 , wherein the second support further comprises an adhesive member between the drive circuit and the holder.

9. The apparatus of claim 1 , wherein the second support further comprises a cushioning member between a rear surface of the display panel and the holder.

10. The holder is a second plate on the back side of the drive circuit; and The apparatus of claim 1 including a pair of bridges bent from sides of the second plate.

11. The apparatus of claim 10 , wherein the pair of bridges are connected to the support frame.

12. the drive circuit includes a printed circuit board on the second plate; The apparatus of claim 10 , wherein the second plate has a larger dimension than the printed circuit board.

13. The apparatus of any one of claims 10 to 12, wherein the second plate is spaced apart from a rear surface of the display panel.

14. The device of claim 1 , further comprising one or more piezoelectric elements configured to vibrate an edge portion of a rear surface of the display panel.

15. the one or more sound generators are configured to vibrate the display panel to output sounds in a first range of frequencies; 15. The apparatus of claim 14, wherein the one or more piezoelectric elements are configured to vibrate the display panel to output sounds in a second range that is higher than the sounds in the first range.

16. The one or more acoustic generators include: a first acoustic generator configured to vibrate a first region of the display panel; and The apparatus of claim 14 , further comprising a second acoustic generator configured to vibrate a second region of the display panel.

17. The one or more piezoelectric elements include a first piezoelectric element configured to vibrate a third area of ​​a rear surface of the display panel; and 15. The apparatus of claim 14, further comprising a second piezoelectric element configured to vibrate a fourth area of ​​a rear surface of the display panel.

18. a dashboard including a first area facing a driver's seat, a second area facing a passenger seat, and a third area between the first area and the second area; an instrument panel including a first display in the first region of the dashboard; and an infotainment device including a second display in the third area of ​​the dashboard, a third display in the second area of ​​the dashboard, a fourth display at a back of the driver's seat, and a fifth display at a back of the passenger seat; A vehicle, wherein at least one of the first to fifth displays includes a device according to any one of claims 1 to 17.

19. Left front door, right front door, left rear door, right rear door, and rear deco, as well as 20. The vehicle of claim 18, further comprising at least one of a dashboard speaker located on the dashboard, a left front door speaker located on the left front door, a right front door speaker located on the right front door, a left rear door speaker located on the left rear door, a right rear door speaker located on the right rear door, and a rear decor speaker located on the rear decor.

20. A vehicle comprising a dashboard including a device according to any one of the preceding claims.

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