Display device and vehicle including the display device

Abstract

To improve the sound quality of a display apparatus, to prevent damage to a drive circuit portion due to vibration, to improve the degree of freedom in arranging a vibration device, and to improve acoustic performance.SOLUTION: A display apparatus includes: a display panel configured to display an image; a driving circuit including a flexible circuit film coupled to the display panel, and a printed circuit board coupled to the flexible circuit film; a first supporting member that is arranged at the back of the display panel, and has holes; and a vibration device that is supported by the first supporting member, and that includes a first vibration device arranged at the back of the display panel. The flexible circuit film is extended via the holes, and the printed circuit board is arranged at the back of the first supporting member.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This specification relates to a display device and a vehicle including the display device.

Background Art

[0002] A display device is mounted on electronic products or household appliances such as televisions, monitors, notebook computers, smartphones, tablet computers, electronic pads, wearable devices, watch phones, portable information devices, navigation devices, or vehicle control display devices, and is used as a screen for displaying images.

[0003] A display device can include a display panel for expressing an image and an acoustic device for outputting an acoustic related to the image. However, since the acoustic output from the acoustic device of the display device travels behind or below the display panel, the sound quality deteriorates due to interference between the acoustics reflected from surrounding structures such as walls and floors. For this reason, there is a problem that accurate acoustic transmission is difficult and the immersion feeling of viewers is reduced.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The inventors of this specification recognized the above problems of the display device, and when viewing an image in front of the display panel, they were able to direct the traveling direction of the acoustic forward of the display panel and conducted several experiments to improve the sound quality. Through a plurality of experiments, they invented a display device with a new structure that can generate an acoustic traveling in front of the display panel and improve the sound quality.

[0006] The problem to be solved by this specification is to provide a display device capable of outputting sound in front of a display panel and a vehicle including the same.

[0007] The problem to be solved by this specification is to provide a display device capable of improving sound quality and enhancing the immersion of viewers or listeners, and a vehicle including the same.

[0008] The technical problem to be solved by this specification is to provide a display device capable of preventing or minimizing damage to a drive circuit unit caused by vibration of a display panel, and a vehicle including the same.

[0009] The problem to be solved by this specification is to provide a display device capable of improving the degree of freedom in arranging a vibration device, and a vehicle including the same.

[0010] The problem to be solved by this specification is to provide a display device including a vibration device capable of improving the efficiency of vibration transmitted to a display panel and acoustic performance, and a vehicle including the same.

[0011] The problem to be solved by this specification is to provide a display device capable of simultaneously generating sound and haptic feedback, and a vehicle including the same.

[0012] The problem to be solved by this specification is to provide a display device capable of generating sound with improved sound pressure characteristics while simultaneously generating sound and haptic feedback, and a vehicle including the same.

[0013] In addition to the problems to be solved by this specification described above, different features and advantages are described below, and from the description and explanation, those having ordinary knowledge in the technical field to which the invention of this specification belongs will clearly understand.

Means for Solving the Problems

[0014] The display device according to the embodiments of this specification includes a display panel configured to display an image, a flexible circuit film connected to the display panel, and a driving circuit unit including a printed circuit board connected to the flexible circuit film, a first support member disposed on the back surface of the display panel and including a hole, and a vibration device including a first vibration device supported by the first support member and disposed on the back surface of the display panel. The flexible circuit film extends through the hole, and the printed circuit board can be disposed on the back surface of the first support member.

[0015] The display device according to the embodiments of this specification includes a display panel configured to display an image, a flexible circuit film connected to the display panel, and a driving circuit unit including a printed circuit board connected to the flexible circuit film, a support member disposed on the back surface of the display panel and including an open area, and a vibration device including a first vibration device supported by the support member and disposed on the back surface of the display panel. The flexible circuit film extends through the open area, and the printed circuit board can be disposed on the back surface of the support member.

[0016] The vehicle according to the embodiment of this specification includes an instrument panel including a first area facing the driver's seat, a second area facing the passenger seat, and a third area between the first area and the second area, an instrument panel device including a first display disposed in the first area of the instrument panel, a second display disposed in the third area of the instrument panel, a third display disposed in the second area of the instrument panel, a fourth display disposed on the back of the driver's seat, and an infotainment device having at least one or more of the fifth display disposed on the back of the passenger seat. One or more of the first to fifth displays include a display device. The display device includes a display panel configured to display an image, a flexible circuit film connected to the display panel, and a drive circuit unit including a printed circuit board connected to the flexible circuit film. A first support member disposed on the back of the display panel and including a hole, and a vibration device including a first vibration device supported by the first support member and disposed on the back of the display panel. The flexible circuit film extends through the hole, and the printed circuit board may be disposed on the back of the first support member.

[0017] The vehicle according to the embodiment of this specification includes a dashboard including a first area facing the driver's seat, a second area facing the passenger seat, and a third area between the first area and the second area, an instrument panel device including a first display disposed in the first area of the dashboard, a second display disposed in the third area of the dashboard, a third display disposed in the second area of the dashboard, a fourth display disposed on the back of the driver's seat, and a fifth display disposed on the back of the passenger seat, and an infotainment device having at least one of them. One or more of the first to fifth displays include a display device. The display device includes a display panel configured to display an image, a flexible circuit film connected to the display panel, and a drive circuit unit including a printed circuit board connected to the flexible circuit film, a support member disposed on the back of the display panel and including an open area, and a vibration device including a first vibration device supported by the support member and disposed on the back of the display panel. The flexible circuit film is extended through the open area, and the printed circuit board may be disposed on the back of the support member.

[0018] The problem to be solved according to the embodiment of this specification is not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

Effect of the Invention

[0019] The display device according to the embodiment of this 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 increasing the immersion of the viewer or viewers.

[0020] In addition, the display device according to the embodiment of this specification can prevent or minimize damage to the drive circuit unit due to vibration of the display panel, thereby improving the reliability of the drive circuit unit.

[0021] The display device according to the embodiments of the present specification can improve the degree of freedom in arranging the vibration device, and through the efficient arrangement of the vibration device, the sound pressure, sound quality, and reproduction band of the sound generated by the vibration of the display panel can be increased.

[0022] The display device according to the embodiments of the present specification can generate sound with improved sound pressure characteristics while simultaneously generating sound and haptic feedback.

[0023] In addition to the effects of the present specification described above, other features and advantages of the present specification are described below, and from the description and explanation, those having ordinary knowledge in the technical field to which the invention of the present specification belongs will clearly understand.

[0024] The problems to be solved, the means for solving the problems, and the contents of the effects described above do not specify the essential features of the claims, and the scope of rights of the claims is not limited by the matters described in the content of the invention.

[0025] The drawings attached below are for helping to understand the embodiments of the present specification and provide embodiments together with the detailed description. However, the technical features of the present embodiment are not limited to a specific drawing, and the features disclosed in each drawing can be combined with each other to form a new embodiment.

Brief Description of the Drawings

[0026]

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Modes for Carrying Out the Invention

[0027] The advantages and features of this specification, and the methods for achieving them, will become clear by referring to an embodiment described in detail below together with the accompanying drawings. However, this specification is not limited to the embodiments disclosed below, but can be realized in various different forms. Simply, this embodiment is provided to complete the disclosure of this specification and to fully inform those with ordinary knowledge in the technical field to which this specification belongs of the scope of the invention. This specification is defined only by the scope of the claims.

[0028] To describe the embodiments of this specification, the shapes, sizes, ratios, angles, numbers, etc. shown in the figures are exemplary and this specification is not limited to the matters shown in the figures. The same reference numerals throughout the specification refer to the same components. Also, in describing the embodiments of this specification, if it is determined that a specific description of related known technologies would unnecessarily obscure the gist of this specification, the detailed description thereof will be omitted.

[0029] When terms such as "including", "having", "consisting of", etc. mentioned in this specification are used, other parts can be added unless "only" is used. When a component is expressed in the singular, it includes the case of including a plurality unless there is a particularly explicit description.

[0030] When interpreting a component, it is interpreted as including the range of error even without a separate explicit description.

[0031] In the case of an explanation of the positional relationship, for example, when the positional relationship between two parts is explained by "above", "on the upper part", "on the lower part", "sideways", etc., unless "immediately" or "directly" is used, one or more other parts can also be located between the two parts.

[0032] In the case of an explanation of the relationship of time, for example, when the temporal front - back relationship is explained by "after", "subsequent to", "next", "before", etc., unless "immediately" or "directly" is used, it can include the case where it is not continuous.

[0033] First, second, etc. are used to describe various components, but these components are not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, the first component mentioned below may be the second component within the technical idea of the present invention.

[0034] The term "at least one" should be understood to include all combinations that can be presented from one or more related items. For example, the meaning of "at least one of the first item, the second item, and the third item" can include not only each of the first item, the second item, or the third item alone, but also all combinations of two or more items that can be presented from among the first item, the second item, and the third item.

[0035] The features of each of several embodiments in this specification can be partially or wholly combined or combined with each other, enabling various technical linkages and drives, and each embodiment can be implemented independently of the others, and can also be implemented together in an associated relationship.

[0036] Hereinafter, embodiments of a display device according to the embodiments of this specification and a vehicle including the same will be described in detail with reference to the attached drawings. When adding reference numerals to the components of each figure, for the same components, even if they are shown on other figures, they can have the same reference numerals as much as possible. And the scale of the components shown in the attached drawings has a scale different from the actual one for the convenience of explanation, and thus is not limited to the scale shown in the figures.

[0037] When the drive circuit unit of a display device is directly arranged on the back surface of a display panel, it has been recognized that there is a problem in that the desired sound cannot be transmitted by the drive circuit unit when the vibration of a vibration generating device is transmitted to the display panel. And when applying the vibration generating device to a vehicle display device having a relatively small size, it has been recognized that there is a problem in that the drive circuit unit is damaged by the vibration of the vibration generating device. Therefore, the inventors of the present specification have conducted several experiments through a plurality of experiments to reduce the damage of the drive circuit unit by the vibration generating device. The inventors of the present specification have, through a plurality of experiments, invented a display device with a new structure that can prevent damage to the drive circuit unit by the vibration generating device, reduce the contact between the drive circuit unit and the display panel, thereby reducing the vibration by the drive circuit unit, and improving the sound of the vibration generating device. In contrast, the following will be described.

[0038] FIG. 1 is a diagram showing a display device according to an embodiment of the present specification.

[0039] Referring to FIG. 1, the display device according to the embodiment of the present specification can output acoustic (DVS) (or the vibration sound of the display) by the vibration of the display panel 200 for displaying an image. Therefore, the display device according to the embodiment of the present specification uses the display panel 200 as a diaphragm for sound generation, and outputs the acoustic (DVS), so that the acoustic (DVS) can be output in front of the screen (FD) of the display panel 200. As a result, accurate sound transmission is possible, the sound quality is improved, and the immersion feeling of the viewer or listener can be enhanced.

[0040] FIG. 2 is a diagram showing the back surface of the display device shown in FIG. 1. FIG. 3 is an exploded perspective view of the display device shown in FIGS. 1 and 2. FIG. 4 is a cross-sectional view taken along line I-I' shown in FIG. 2. FIG. 5 is a cross-sectional view taken along line II-II' shown in FIG. 2.

[0041] Referring to FIGS. 2 to 5, the display device according to the embodiments of the present specification may include, but is not limited to, a front member 100, a display panel 200, a driving circuit unit 300, a support frame 400, a first support member 500, a second support member 600, a third support member 700, and a vibration device (or a first vibration device) 800.

[0042] The front member 100 constitutes the foremost structure of the display device and can serve to protect the screen of the display panel 200. The front member 100 may be disposed in front of the display panel 200. For example, the front member 100 can protect the display panel 200 from external impacts by covering the front of the display panel 200. Also, the front member 100 can generate acoustic (DVS) by vibrating together with the vibration of the display panel 200.

[0043] The front member 100 according to the embodiments of the present specification can be made of a transparent plastic material, a glass material, or a strengthened glass material, but is not limited thereto. As an example of the present specification, the front member 100 can have either one of sapphire glass and gorilla glass, or a laminated structure thereof, but is not limited thereto. As another example, the front member 100 can include a transparent plastic material such as PET (PolyEthylene Terephthalate). The front member 100 can be made of strengthened glass in consideration of scratches and transparency. For example, the front member 100 can be a front structure, a front window, a cover window, a glass window, a cover screen, a screen cover, or window glass, etc., and is not limited to these terms.

[0044] Referring to FIG. 3, the front member 100 covers the remaining non-display area excluding the display area of the display panel 200. The front member 100 according to the embodiment of the present specification may include a transparent area 110 that overlaps with the display area of the display panel 200 and a transparent area 130 that overlaps with the non-display area of the display panel 200. The transparent area 130 can 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.

[0045] The front member 100 according to the embodiment of the present specification can have a polygonal shape including a quadrilateral shape or a square shape, or a non-polygonal shape including at least one side having a curved shape.

[0046] The display panel 200 is disposed on the back (or rear surface) of the front member 100 and can display an image. The display panel 200 can serve as a touch sensor for sensing a user's touch on the front member 100. The display panel 200 can output acoustic (DVS) by the vibration of the vibration device 800 or generate haptic feedback (or haptic vibration) in response to a user's touch.

[0047] The display panel 200 can be disposed on the back of the front member 100 through a bonding process using a panel connecting member (or a transparent adhesive member). The panel connecting member can include, but is not limited to, PSA (pressure sensitive adhesive), OCA (optically clear adhesive), or OCR (optically clear resin).

[0048] The display panel 200 can include a self-emitting display panel or a curved self-emitting display panel. For example, the display panel 200 can 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.

[0049] The display panel 200 according to the embodiments of the present specification can have a polygonal shape including a rectangular shape or a square shape, or a non-polygonal shape including at least one side having a curved shape. The display panel 200 can have the same or different shape from the front member 100. As an embodiment of the present specification, the front member 100 can have a rectangular shape, and the display panel 200 can have a rectangular shape with a size smaller than that of the front member 100. As another embodiment of the present specification, the front member 100 can have a non-polygonal shape, and the display panel 200 can have a non-polygonal shape or a rectangular shape with a size smaller than that of the front member 100.

[0050] Referring to FIG. 4, the display panel 200 according to the embodiments of the present specification can further include a pixel array substrate 210 having a pixel array layer 213 composed of a plurality of pixels, and an encapsulation layer 230 covering the pixel array layer 213.

[0051] The pixel array substrate 210 according to the embodiments of the present specification can include a base substrate 211 and a pixel array layer 213 disposed on the base substrate 211. For example, the base substrate 211 can include, but is not limited to, a plastic material or a glass material.

[0052] The pixel array layer 213 can include a pixel array having a plurality of pixels disposed in a display area on the base substrate 211.

[0053] Each of the plurality of pixels can 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 plurality of pixels according to the embodiments of the present specification can 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.

[0054] The light emitting element layer disposed in each of the plurality of pixels can include a first electrode connected to the corresponding pixel circuit, a light emitting element disposed on the first electrode, and a second electrode disposed on the light emitting element. As an embodiment of the present specification, the light emitting element can include an organic light emitting layer or a quantum dot light emitting layer. As another embodiment of the present specification, the light emitting element can include a micro light emitting diode.

[0055] The light emitting element layer according to the embodiments of the present specification can have an upper light emitting structure or a front light emitting structure in which light emitted from the light emitting element passes through the sealing layer 230 and exits toward the front member 100. For example, in the light emitting element layer according to the upper light emitting structure (or the front light emitting structure), the first electrode can be a reflective electrode, and the second electrode can be a transparent electrode. For example, the first electrode can include a light reflective substance, and the second electrode can include a light transmissive substance.

[0056] The light emitting element layer according to other embodiments of the present specification can have a lower light emitting structure or a back light emitting structure in which light emitted from the light emitting element passes through the pixel array substrate 210 and exits toward the front member 100. For example, in the light emitting element layer according to the lower light emitting structure (or the back light emitting structure), the first electrode can be a transparent electrode, and the second electrode can be a reflective electrode. The first electrode can include a light transmissive substance, and the second electrode can include a light reflective substance. Not limited thereto, the light emitting element layer can have a double-sided light emitting structure.

[0057] The pixel array substrate 210 can further include a gate driving circuit 215 disposed in a non-display region of the base substrate 211.

[0058] The gate driving circuit 215 can be disposed in the non-display area of the base substrate 211 so as to be connected to a plurality of gate lines one-to-one. The gate driving circuit 215 can be disposed in at least one of the left non-display area and the right non-display area of the base substrate 211. For example, the gate driving circuit 215 can be realized by a shift register including a plurality of transistors formed in the non-display area together with the step of forming thin film transistors in the pixel area.

[0059] The encapsulation layer 230 can be 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. The encapsulation layer 230 according to the embodiments of the present specification can be formed in a multi-layer structure in which an organic material layer and an inorganic material layer are alternately laminated, but is not limited thereto. The inorganic material layer can prevent or block oxygen and / or moisture from entering the light-emitting elements. In addition, the organic material layer can be formed to have a relatively thicker thickness than the inorganic material layer so as to cover foreign substances (particles) that may be generated during the manufacturing process, but is not limited thereto.

[0060] The display panel 200 according to the embodiments of the present specification can further include a protection substrate disposed on the encapsulation layer 230. The protection substrate (or encapsulation substrate) can be disposed or bonded to the front surface of the encapsulation layer 230 via a filling material or an adhesive. As an embodiment of the present specification, the protection substrate can be made of a transparent material when the light-emitting element layer has an upper light-emitting structure. As another embodiment of the present specification, the protection substrate can be made of a transparent material, an opaque material, or a metal material when the light-emitting element layer has a lower light-emitting structure. For example, when the light-emitting element layer has an upper light-emitting structure, the protection substrate can be omitted.

[0061] The display panel 200 according to the embodiments of the present specification can further include an optical film.

[0062] The optical film can be a polarizing film for preventing or minimizing the reflection of external light and improving the visibility and contrast ratio of the display panel 200. The polarizing film can prevent or minimize the reflection of external light by changing the externally reflected light to a circularly polarized state by means of thin film transistors provided on the pixel array substrate 210 and / or pixel driving lines, etc.

[0063] The optical film according to the embodiments of the present specification can be disposed (or adhered) on the upper surface of the encapsulation layer 230 via a transparent adhesive member when the light emitting element layer has an upper emission structure. When the display panel 200 has an optical film, the protective substrate can be omitted.

[0064] The optical film according to other embodiments of the present specification can be disposed (or adhered) on the back surface of the pixel array substrate 210 via a transparent adhesive member when the light emitting element layer has a lower emission structure.

[0065] The display panel 200 according to the embodiments of the present specification can further include a touch electrode layer for sensing a touch of a user on the front member 100.

[0066] The touch electrode layer can include a plurality of touch electrodes for sensing a touch of a user. The plurality of touch electrodes can serve as a touch sensor for sensing a touch of a user based on the mutual capacitance method or the self-capacitance method.

[0067] The touch electrode layer according to the embodiments of the present specification can be realized by a touch panel including a plurality of touch electrodes. For example, an add-on type touch panel can be disposed or bonded on the encapsulation layer 230 or the optical film when the light emitting element layer has an upper emission structure, or can be disposed or bonded on the back surface of the pixel array substrate 210 when the light emitting element layer has a lower emission structure.

[0068] The touch electrode layer according to other embodiments of the present specification can be formed directly on the encapsulation layer 230 by an in-cell method. For example, the touch electrode layer of the in-cell method can be formed directly on the front surface of the encapsulation layer 230 when the light emitting element layer has an upper emission structure.

[0069] The display panel 200 according to the embodiments of the present specification can further include a color filter layer provided on the encapsulation layer 230 so as to overlap each of the plurality of pixels. The light emitting elements disposed in each of the plurality of pixels can emit white light. As an embodiment of the present specification, when the light emitting element layer has an upper emission structure, the color filter layer can be disposed on the encapsulation layer 230. As an embodiment of the present specification, when the light emitting element layer has a lower emission structure, the color filter layer can be disposed in the pixel array layer 213.

[0070] The display panel 200 according to the embodiments of the present specification can further include a back plate 250.

[0071] The back plate 250 can be formed to have the same form as the pixel array substrate 210. As an embodiment of the present specification, when the light emitting element layer has an upper emission structure, the back plate 250 can be disposed on the back surface (or the rear surface) of the pixel array substrate 210 through a transparent adhesive member. As an embodiment of the present specification, when the light emitting element layer has a lower emission structure, the back plate 250 can be a protective substrate.

[0072] The back plate 250 can increase the rigidity of the display panel 200 and dissipate the heat generated from the display panel 200. The back plate 250 according to the embodiments of the present specification can include a metal material with high thermal conductivity. For example, the back plate 250 can be made of any one of aluminum, copper, silver, and magnesium, or can include these alloy materials or a stainless steel material, and is not limited thereto. The back plate 250 can be expressed as a heat dissipation sheet, a heat dissipation layer, a heat dissipation plate, a heat sink, a heat dissipation sheet, a heat dissipation layer, or a heat dissipation plate, etc., and is not limited to the terms.

[0073] Referring to FIGS. 2, 3, and 5, the driving circuit unit 300 is disposed on the back surface of the display panel 200 and can be connected to the display panel 200. For example, the driving circuit unit 300 can be connected to a pad portion 217 disposed on a first edge portion (or one side edge portion) of the display panel 200. The driving circuit unit 300 can be realized to display an image on a plurality of pixels disposed on the pixel array substrate 210 of the display panel 200. For example, the driving circuit unit 300 can display an image in the display area of the display panel 200. The driving circuit unit 300 can sense a touch of a user through a plurality of touch electrodes disposed on the touch electrode layer of the display panel 200.

[0074] The driving circuit unit 300 according to the embodiments of the present specification can include at least one flexible circuit film 310, at least one data driving integrated circuit 320, and a printed circuit board 330.

[0075] Each of at least one flexible circuit film 310 can be respectively connected to a plurality of pad portions 217 disposed on the first edge portion (or one side edge portion) of the pixel array substrate 210 of the display panel 200. The plurality of pad portions 217 can be disposed at regular intervals along the first direction (X). Accordingly, each of at least one flexible circuit film 310 can be disposed at regular intervals along the first direction (X) by being respectively connected to the plurality of pad portions 217 having regular intervals. For example, one side of each of at least one flexible circuit film 310 can be disposed (or connected) to the pad portion 217 disposed on the display panel 200 through a film attaching process using an anisotropic conductive film.

[0076] Each of at least one flexible circuit film 310 can extend to the back side of the first support member 500 and can be disposed on the back surface of the first support member 500. For example, each of at least one flexible circuit film 310 can be bent (or folded) from the pad portion 217 to the back side of the first support member 500. For example, the other side of each of at least one flexible circuit film 310 can be disposed at the edge portion of the first back surface of the first support member 500. For example, each of at least one flexible circuit film 310 can extend to the edge portion side of the first back surface of the first support member 500 through a hole (H) formed in the first edge portion (or one side edge portion) of the first support member 500 and can be disposed at the first edge portion of the first support member 500. For example, the hole (H) can be a via hole, but is not limited to this term.

[0077] Each of the plurality of data driving integrated circuits 320 can be respectively 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 digital pixel data into an analog data signal based on digital pixel data and a data control signal supplied from the outside and supplies the analog data signal to the corresponding pixel.

[0078] The printed circuit board 330 can be commonly connected to each of at least one flexible circuit film 310. For example, the printed circuit board 330 can be connected to the display panel 200 via at least one flexible circuit film 310. The printed circuit board 330 according to the embodiments herein is electrically connected to the other side of each of at least one flexible circuit film 310 by a film attaching process mediated by an anisotropic conductive film, and can be disposed at the edge portion of the first back surface of the first support member 500 by bending each of at least one flexible circuit film 310. The edge portion of the first back surface of the first support member 500 can be the area of the back surface of the first support member 500 where at least one flexible circuit film 310 and the printed circuit board 330 are disposed. For example, the edge portion of the first back surface of the first support member 500 can be represented by a side portion of the back surface of the first support member 500.

[0079] According to the embodiments herein, the printed circuit board 330 can be disposed on the back surface of the first support member 500 so as not to overlap with the vibration device 800. According to the embodiments herein, a part of the printed circuit board 330 can overlap with the vibration device 800 and be disposed on the back surface of the vibration device 800. According to the embodiments herein, a part of the printed circuit board 330 that overlaps with the vibration device 800 can overlap or not overlap with the first support member 500.

[0080] According to the embodiments of this specification, the printed circuit board 330 can include a first substrate region 331 that overlaps with the first support member 500. For example, the printed circuit board 330 can include a first substrate region 331 that overlaps with the first support member 500, and a second substrate region 333 that overlaps with the first support member 500 and the vibration device 800. For example, the printed circuit board 330 can include a first substrate region 331 that overlaps with the first support member 500, a second substrate region 333 that overlaps with the first support member 500 and the vibration device 800, and a third substrate region 335 that overlaps with the vibration device 800. According to the embodiments of this specification, the printed circuit board 330 can include a region of the first substrate that overlaps with the first support member 500, and a third substrate region 335 that overlaps with the vibration device 800.

[0081] According to the embodiments of this specification, when the printed circuit board 330 is arranged to directly contact the back surface of the display panel 200, the vibration of the display panel 200 for acoustics (DVS) is directly transmitted to the printed circuit board 330, causing damage to 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 tremor of the printed circuit board 330, and the data driving integrated circuit 320 may be damaged due to the vibration of the flexible circuit film 310 caused by the vibration of the printed circuit board 330.

[0082] Therefore, the display device according to the embodiments of this specification arranges the printed circuit board 330 on the back surface of the first support member 500 so as not to directly contact the back surface of the display panel 200, thereby preventing or minimizing the transmission of the vibration of the display panel 200 to the printed circuit board 330. And thereby, damage to the printed circuit board 330 caused by the vibration of the display panel 200 can be prevented or minimized, and the peeling phenomenon between the flexible circuit film 310 and the printed circuit board 330 and damage to the data driving integrated circuit 320 can be prevented or minimized.

[0083] In addition, since the printed circuit board 330 is not disposed between the display panel 200 and the first support member 500, the arrangement of the vibration device 800 is not affected by the printed circuit board 330, so that the degree of freedom in arranging the vibration device 800 can be ensured. As a result, it is possible to increase the sound pressure, sound quality, and reproduction band of the sound generated by the vibration of the display panel 200 through the arrangement of the vibration device 800.

[0084] The drive circuit unit 300 according to the embodiment of the present specification may further include a control board 340, a signal transmission member 350, a timing control circuit 360, a user connector 370, and a vibration drive circuit 380.

[0085] The control board 340 is disposed on the back surface of the first support member 500 and can be connected to the printed circuit board 330 via the signal transmission member 350. The control board 340 can be connected to a display host system (or a display drive system) via the user connector 370. The control board 340 provides the timing control circuit 360 with a timing synchronization signal and video data supplied from the host system of the display, and can provide the digital pixel data output from the timing control circuit 360 to the data drive integrated circuit 320 via the signal transmission member 350, the printed circuit board 330, and the flexible circuit film 310.

[0086] The control board 340 may further include a voltage generation circuit that generates various drive voltages necessary for driving the display device.

[0087] The timing control circuit 360 is mounted on the control board 340 and receives a timing synchronization signal and video data supplied from the display host system via the user connector 370. For example, the timing synchronization signal may include a vertical synchronization signal, a horizontal synchronization signal, a data enable signal, a main clock signal, and the like.

[0088] The timing control circuit 360 can generate each of a gate control signal for controlling the driving timing of the gate driving circuit and a data control signal for controlling the driving timing of each of the plurality of data driving integrated circuits 320 based on a timing synchronization signal. For example, the gate control signal can include at least one gate start signal, a plurality of gate shift clocks, and the like. The data control signal can include a source start signal, a source shift clock, a source output enable signal, and the like.

[0089] The timing control circuit 360 may not be mounted on the control board 340 and may be mounted on the front surface of the printed circuit board 330. Also, the voltage generation circuit may not be mounted on the control board 340 and may be mounted on the front surface of the printed circuit board 330. In this case, the control board 340 may be omitted.

[0090] The drive circuit unit 300 according to the embodiment of the present specification may further include a touch drive circuit connected to the touch electrode layer of the display panel 200.

[0091] The touch drive circuit can sense a user's touch through each of a plurality of touch electrodes arranged in the touch electrode layer to generate touch raw data, and based on the generated touch raw data, provide coordinate information of the user's touch to the display host system. For example, the touch drive circuit can provide the occurrence of a user's touch event and the coordinate information of the touch to the vibration drive circuit.

[0092] The display host system can include a main board, various circuits implemented on the motherboard, various storage media, peripheral devices, a keyboard, and a power supply unit, etc. The various circuits implemented on the motherboard can include a central control circuit for processing various information, an image processing circuit for processing data based on the control of the central control circuit, and an audio processing circuit for processing sound based on the control of the central control circuit, etc. The display host system processes various information, generates a timing synchronization signal and video data, and provides them to the control board 340, and generates a drive signal including an audio signal or a haptic feedback signal and provides it to the control board 340. For example, the audio signal may or may not be synchronized with the video data.

[0093] The display host system can execute an application program associated with the touch coordinates corresponding to the coordinate information of the user's touch provided by the touch drive circuit, or execute the user interface based on the user's touch drawing. Also, the host system of the display can generate a drive signal including a haptic feedback signal corresponding to the coordinate information of the user's touch provided by the touch drive circuit, and provide it to the drive circuit unit 30.

[0094] The support frame 400 can be disposed on the back surface of the front member 100. For example, the support frame 400 can surround the side surface of the display panel 200. For example, the support frame 400 can surround the vibration device 800. For example, the support frame 400 can have the same shape as the front member 100. The support frame 400 is disposed on the outermost side surface of the display device and can be directly exposed to the outside of the display device. For example, the support frame 400 can be represented by an outermost frame, an outermost mold, an outermost mechanism, a guide frame, a guide panel, an edge frame, or a mold frame, etc., but is not limited to this term.

[0095] The support frame 400 can support the first support member 500. The support frame 400 can provide an air gap (AG) or a storage or accommodation space for the display panel 200 between the back surface of the display panel 200 and the first support member 500. Also, the support frame 400 can provide a storage or accommodation space for the vibration device 800.

[0096] According to an embodiment of the present specification, the support frame 400 can be disposed at an edge portion of the back surface of the front member 100 via a first connection member (or a first coupling member) 410. The first connection member 410 can be interposed between the edge portion of the back surface of the front member 100 and the support frame 400 to dispose the support frame 400 on the back surface of the front member 100.

[0097] The first connection member 410 according to an embodiment of the present specification can include, but is not limited to, an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad. The adhesive resin and / or the adhesive layer of the first connection member 410 according to an embodiment of the present specification can include, but is not limited to, an acrylic-based or urethane-based adhesive substance. For example, the adhesive resin and / or the adhesive layer of the first connection member 410 can include a urethane-based adhesive substance having relatively soft properties rather than an acrylic-based adhesive substance having relatively high hardness in order to prevent or minimize the transmission of the vibration of the front member 100 due to the vibration of the display panel 200 to the support frame 400, but is not limited thereto.

[0098] The support frame 400 according to an embodiment of the present specification can be disposed at an edge portion of the front member 100 and can include an opening 420 that overlaps the display panel 200. For example, the support frame 400 can have the same shape as the front member 100, but is not limited thereto. For example, the support frame 400 can have the same polygonal shape or a non-polygonal shape as the shape of the front member 100.

[0099] The support frame 400 can include an opening 420 in the central region. The support frame 400 can have a four-sided support structure (or a square frame structure) that supports the four edge portions of the front member 100, namely, the upper, lower, left, and right ones. Therefore, since the four edge portions of the front member 100, namely, the upper, lower, left, and right ones, are all supported by the support frame 400, the rigidity at the upper, lower, left, and right edge portions of the front member 100 can all be the same. As a result, a vibration mode of the display panel 200 can be formed around the vibration device 800, and by making the vibration region (or the vibratable position) of the vibration device 800 coincide with the position of the maximum displacement of the display panel 200, the vibration efficiency of the vibration device 800 can be improved. Accordingly, the sound pressure, sound quality, and reproduction band of the sound generated by the vibration of the display panel 200 can be improved. In this specification, the terms "left side", "right side", "upper part", and "lower part" are used as an example for the convenience of explanation and illustration, and it should be understood that they are mutually interchangeable so that those with ordinary knowledge in the technical field to which this specification belongs can understand.

[0100] The opening 420 of the support frame 400 can be realized by the inner surface of the support frame 400. The opening 420 of the support frame 400 can house or accommodate the display panel 200. Also, the opening 420 of the support frame 400 can house or accommodate the vibration device 800. For example, the opening 420 of the support frame 400 can have the same shape as the display panel 200. For example, the opening 420 of the support frame 400 can have a size larger than that of the display panel 200. For example, the opening 420 of the support frame 400 can have the same polygonal shape or non-polygonal shape as the shape of the display panel 200.

[0101] The support frame 400 according to the embodiments of this specification may further include a plurality of connecting parts 430 formed at regular intervals on one surface. Each of the plurality of connecting parts 430 is a structure for arranging (or connecting) the first support member 500 to the support frame 400, and may be formed on the surface facing the first support member 500. For example, each of the plurality of connecting parts 430 may include a hole or a groove. For example, the hole or the groove may be a screw hole or a screw groove, but is not limited thereto.

[0102] FIG. 6 is a plan view showing the back surface of the first support member according to the embodiments of this specification. FIG. 7A is a cross-sectional view taken along line III-III' shown in FIG. 6. FIGS. 7B and 7C are other cross-sectional views taken along line III-III' shown in FIG. 6.

[0103] Referring to FIGS. 2 to 7C, the first support member 500 may be disposed on the back surface of the display panel 200. For example, the first support member 500 may be disposed on the back surface of the support frame 400. For example, the first support member 500 may be supported at the edge portion of the support frame 400 and cover the back surface of the display panel 200. The first support member 500 can support or house (or accommodate) the vibration device 800. The first support member 500 may be formed to have the same shape as the support frame 400 and may be supported by the support frame 400.

[0104] According to the embodiments of this specification, the first support member 500 may be disposed on the support frame 400 via a second connecting member (or a second coupling member) 540. For example, the second connecting member 540 may be a screw or a bolt, etc., but is not limited thereto. For example, one or more second connecting members 540 may be disposed at the edge portion of the first support member 500. For example, holes for facilitating the connection (or fastening) of the second connecting member 540 may be formed in the region of the first support member 500 where the second connecting member 540 is disposed.

[0105] The first support member 500 according to the embodiments of the present specification can serve as a support base for supporting the vibration device 800. For example, the first support member 500 can include a metal material or a metal alloy material. For example, the first support member 500 can be made of any one or more of aluminum, aluminum alloy, magnesium alloy, an alloy of iron and nickel, and stainless steel, these alloy materials, or a joint structure, and is not limited thereto. For example, the first support member 500 can have a thickness of 0.5 mm or more, and is not limited thereto. The first support member 500 can be a back cover, a back cover, or a back member, etc., and is not limited to these terms.

[0106] The first support member 500 according to other embodiments of the present specification can have a thickness of less than 0.5 mm in order to reduce the weight of the display device. In this case, due to the relatively thin thickness compared to the front member 100, the first support member 500 has low rigidity, so that the torsional phenomenon of the first support member 500 may occur due to the vibration of the vibration device 800, and the vibration of the vibration device 800 may not be correctly transmitted to the front member 100.

[0107] The inventors of the present specification recognized that when the first support member 500 does not have sufficient rigidity, there is a problem that the first support member 500 absorbs part of the energy of the vibration device 800. For example, since the first support member 500 absorbs the energy of the vibration device 800, the vibration lacking by the amount of energy absorbed by the first support member 500 can be transmitted to the display panel 200. As a result, it becomes difficult for the display panel 200 to output sufficient sound due to the insufficient vibration of the vibration device 800. Therefore, the inventors of the present specification recognized that there is a problem that it is difficult to output the desired sound from the display panel 200 when the energy or vibration of the vibration device 800 disappears.

[0108] Therefore, the inventors of the present specification conducted several experiments to increase or reinforce the rigidity of the first support member 500. To increase the rigidity of the first support member 500, other structures can be additionally configured on the first support member 500. However, in this case, there is a problem that the thickness of the display device increases. Through a plurality of experiments, the inventors of the present specification configured a forming portion (or a rigidity reinforcement structure) on the first support member 500 to increase or reinforce the rigidity of the first support member 500 without increasing the thickness of the display device. Further, the display device according to the embodiment of the present specification can further include at least one or more reinforcement portions for reinforcing the rigidity of the first support member 500. For example, the at least one or more reinforcement portions can further include a reinforcement bar or a rigidity reinforcement structure.

[0109] The first support member 500 according to the embodiment of the present specification can include a first-1 plate 510, a forming portion 520, and a first-2 plate 530.

[0110] According to the embodiment of the present specification, the first-1 plate 510 forms a base of the first support member 500, the forming portion 520 extends from the first-1 plate 510 in an outer direction of the first-1 plate 510, the first-2 plate 530 extends from the forming portion 520 in an outer direction of the first-1 plate 510, and the forming portion 520 can be a region between the first-1 plate 510 and the first-2 plate 530. For example, the first-1 plate 510, the forming portion 520, and the first-2 plate 530 can be integrally formed.

[0111] The first-1 plate 510 (or the first-1 support plate) according to the embodiment of the present specification can be disposed on the back surface of the display panel 200. For example, the first-1 plate 510 is disposed to face the back surface of the display panel 200 and can cover the back surface of the display panel 200. For example, the first-1 plate 510 can include a plurality of holes.

[0112] The first-first plate 510 is located in the central region of the first support member 500 and can support the vibration device 800. For example, the first-first plate 510 can have a flat shape, but is not limited thereto. The first support member 500 according to the embodiment of the present specification can include a first hole (or a housing hole for the vibration device) 550 formed in the first-first plate 510. The first hole 550 can be formed in the first-first plate 510 so as to have a size and shape into which a part of the back surface of the vibration device 800 can be inserted or housed.

[0113] The first hole 550 according to the embodiment of the present specification can include a first-first hole 551 formed in the first-first region (or the first-first plate region) of the first-first plate 510, and a first-second hole 552 formed in the first-second region (or the first-second plate region) of the first-first plate 510 adjacent to the first-first hole 551. For example, the first-first hole 551 and the first-second hole 552 can be arranged side by side in the first direction (X). The first-first hole 551 and the first-second hole 552 according to the embodiment of the present specification can have a circular shape, but are not limited thereto. For example, the first-first hole 551 and the first-second hole 552 can have an elliptical shape or a polygonal shape, or can have a shape into which a part of the back surface of the vibration device 800 can be inserted or housed.

[0114] The first support member 500 according to the embodiment of the present specification can further include a second hole (or a wiring hole or a wire hole) 560 formed in the first-first plate 510. The second hole 560 can have a size and shape such that the drive signal cable of the vibration device 800 disposed between the back surface of the display panel 200 and the first support member 500 can penetrate therethrough and be led out to the outside. For example, the second hole 560 can also be used as a passage through which the drive signal cable of the second vibration device 1200 described later penetrates. The second hole 560 according to the embodiment of the present specification can include a second-first hole 561 formed adjacent to the first-first hole 551, and a second-second hole 562 formed adjacent to the first-second hole 552.

[0115] The first support member 500 according to an embodiment of this specification may further include a third hole (or dummy hole) 570 formed in the first-1 plate 510. For example, the third hole 570 may be used as a vent hole. For example, the third hole 570 may include, but is not limited to, a third-1 hole 571 formed adjacent to the first-1 hole 551 and a third-2 hole 572 formed adjacent to the first-2 hole 552.

[0116] The first support member 500 according to an embodiment of this specification may further include a fourth hole 580 formed in the first-1 plate 510. For example, the fourth hole 580 may be used for the connection between the first support member 500 and the support portion 1110. According to an embodiment of this specification, the fourth hole 580 may be used for the connection or coupling between the first support member 500 and the vibration device 800. For example, the sixth connecting member 1140 of the support portion 1110 may be inserted or received through the fourth hole 580 and coupled to the support portion 1110 side. For example, the fourth hole 580 may include a fourth-1 hole 581 formed adjacent to the first-1 hole 551 and a fourth-2 hole 582 formed adjacent to the first-2 hole 552.

[0117] The first support member 500 according to an embodiment of this specification may further include a fifth hole 590 formed in the first-1 plate 510. For example, the fifth hole 590 can couple or connect the first support member 500 and the vibration device 800. According to an embodiment of this specification, the fifth hole 590 can couple or connect the first support member 500 and the support portion 1110. For example, the fifth hole 590 may be formed adjacent to the first-1 hole 551 and the first-2 hole 552. For example, the fifth hole 590 may include a fifth-1 hole 591 formed adjacent to the first-1 hole 551 and a fifth-2 hole 592 formed adjacent to the first-2 hole 552.

[0118] The forming part 520 according to the embodiment of this specification can be arranged on the back surface of the display panel 200. For example, the forming part 520 can be arranged to face the back surface of the display panel 200 and can cover the back surface of the display panel 200.

[0119] The forming part 520 can be an area extended from the first-1 plate 510 in the outer direction of the first-1 plate 510. For example, one end of the forming part 520 can be connected to the outer end of the first-1 plate 510. The forming part 520 can support the vibration device 800. The forming part 520 can increase and reinforce the rigidity of the first support member 500 and can be formed concave or convex from the first-1 plate 510. For example, the forming part 520 can be formed convex from the first-1 plate 510 toward the display panel 200 to reduce or minimize the increase in the thickness (or height) of the vibration device 800, but is not limited thereto.

[0120] The forming part 520 according to the embodiment of this specification can be composed of one or a plurality of sub-forming parts. For example, the forming part 520 can have a structure in which a plurality of sub-forming parts are arranged in a stepped shape, but is not limited thereto. For example, a plurality of sub-forming parts can be integrally formed.

[0121] Referring to FIG. 7A, the forming part 520 includes a first sub-forming part 521 extended in the outer direction of the first-1 plate 510 so as to have an inclined surface from the outer end of the first-1 plate 510 toward the back surface of the display panel 200, a second sub-forming part 522 extended in the outer direction of the first-1 plate 510 horizontally (or parallel) to the display panel 200 from the outer end (or the other end) of the first sub-forming part 521, and a third sub-forming part 523 extended in the outer direction of the first-1 plate 510 from the second sub-forming part 522.

[0122] According to the embodiments of this specification, the third sub-forming portion 523 can extend along the outer end or one side of the second sub-forming portion 522 toward the back surface of the display panel 200. For example, the third sub-forming portion 523 can extend in the outer or one side direction of the first-1 plate 510 toward the back surface of the display panel 200 so as to have an inclined surface. For example, one end of the third sub-forming portion 523 can be connected to the outer end (or the other end) of the second sub-forming portion 522, and the other end of the third sub-forming portion 523 can be connected to the first-2 plate 530. For example, the other end of the third sub-forming portion 523 can be connected to the surface facing the inner surface of the display device in the surface of the first-2 plate 530. For example, the first sub-forming portion 521 and the third sub-forming portion 523 can have an inclination within a range greater than 0° and not exceeding 90°.

[0123] Referring to FIG. 7B, the forming portion 520 can include a first sub-forming portion 521 that extends in the outer direction of the first-1 plate 510 so as to have an inclined surface from the outer end of the first-1 plate 510 toward the back surface of the display panel 200, and a second sub-forming portion 522 that extends in the outer direction of the first-1 plate 510 from the first sub-forming portion 521.

[0124] According to the embodiments of this specification, the second sub-forming portion 522 can extend from the first sub-forming portion 521 horizontally (or parallel) to the display panel 200. For example, the second sub-forming portion 522 can extend along the outer end (or the other end) of the first sub-forming portion 521. For example, the second sub-forming portion 522 can extend horizontally (or parallel) to the display panel 200 on the same horizontal line as the first-2 plate 530. For example, one end of the second sub-forming portion 522 can be connected to the other end of the first sub-forming portion, and the other end of the second sub-forming portion 522 can be connected to the first-2 plate 530. For example, the other end of the second sub-forming portion 522 can be connected to the surface facing the inner surface of the display device in the surface of the first-2 plate 530.

[0125] Referring to FIG. 7C, the forming portion 520 may include a first sub-forming portion 521 extending from the first-1 plate 510 in the outer direction or one side direction of the first-1 plate 510.

[0126] According to an embodiment of the present specification, the first sub-forming portion 521 may extend along the outer end or one side of the first-1 plate 510 toward the back surface of the display panel 200. For example, the first sub-forming portion 521 may extend in the outer direction or one side direction of the first-1 plate 510 toward the back surface of the display panel 200 so as to have an inclined surface. For example, one end (or one side) of the first sub-forming portion 521 may be connected to the outer end or one side of the first-1 plate 510, and the other end (or the other side) of the first sub-forming portion 521 may be connected to the first-2 plate 530. For example, the other end (or the other side) of the first sub-forming portion 521 may be connected to the surface facing the inner surface of the display device in the surface of the first-2 plate 530.

[0127] The first-2 plate 530 (or the first-2 support plate) according to an embodiment of the present specification may be disposed on the back surface of the front member 100. The first-2 plate 530 may form an edge portion of the first support member 500 and may be disposed on the back surface of the support frame 400. The first-2 plate 530 may be an area extending from the forming portion 520 in the outer direction or one side direction of the first-1 plate 510. The first-2 plate 530 may include a hole (H) through which a part of the drive circuit unit 300 passes (or extends). For example, the printed circuit board 330 of the drive circuit unit 300 may be drawn out (or extended) through the hole (H) and disposed on the back surface of the first support member 500.

[0128] According to an embodiment of the present specification, the first-2 plate 530 may be disposed on the back surface of the support frame 400 via a second connecting member (or a second coupling member) 540. For example, the first-2 plate 530 may be disposed, connected, or coupled to the back surface of the support frame 400 by the second connecting member 540.

[0129] According to the embodiments of this specification, a plurality of second connecting members 540 can be arranged on the first-second plate 530. For example, the second connecting member 540 can be a screw or a bolt, but is not limited thereto. For example, when the second connecting member 540 is a screw or a bolt, the second connecting member 540 can be fastened from the back surface of the first-second plate 530 to the support frame 400 side and can be connected or coupled to the connecting portion 430 of the support frame 400. For example, holes for facilitating the connection (or fastening) of the second connecting member 540 can be formed in the region of the first-second plate 530 where the second connecting member 540 is arranged.

[0130] As another embodiment of this specification, the second connecting member 540 can include, but is not limited to, an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad. For example, the second connecting member 540 can be arranged between the support frame 400 and the second connecting member 540. For example, the adhesive resin and / or the adhesive layer of the second connecting member 540 can include, but is not limited to, an acrylic-based or urethane-based adhesive substance. For example, the adhesive resin and / or the adhesive layer of the second connecting member 540 can include a urethane-based adhesive substance having relatively soft properties rather than an acrylic-based adhesive substance having relatively high hardness properties in order to prevent or minimize the transmission of the vibration of the first support member 500 accompanying the vibration of the vibration device 800 to the support frame 400, but is not limited thereto.

[0131] According to the embodiments of this specification, the first-second plate 530 can include a second-1 region (or second-1 plate region) 531 and a second-2 region (or second-2 plate region) 533.

[0132] According to the embodiments of this specification, the second - 1 region 531 is a part corresponding to the back surface of the support frame 400, and the second - 2 region 533 can be a part between the forming portion 520 and the second - 1 region 531. For example, the second - 1 region 531 can be disposed on the back surface of the support frame 400 via the second connecting member 540. For example, the second - 2 region 533 can include holes (H). For example, the holes (H) can be formed in the second - 2 region 533 of the first - 2 plate 530 located at the first edge portion of the first support member 500. For example, the second - 2 region 533 can have a size and shape through which the printed circuit board 330 of the drive circuit unit 300 can pass.

[0133] The first - 2 plate 530 is disposed along the support frame 400, and the front - face member 100 and the support frame 400 can be supported by the first support member 500. Thereby, the upper, lower, left, and right four - edge portions of each of the front - face member 100 and the support frame 400 are all supported by the first - 2 plate 530, and the rigidity at the upper, lower, left, and right edge portions of each of the front - face member 100, the support frame 400, and the first support member 500 can be the same. Thereby, the vibration mode of the display panel 200 can be formed around the vibration device 800, and by making the vibration region (or the vibratable position) of the vibration device 800 coincide with the position of the maximum displacement of the display panel 200, the vibration efficiency of the vibration device 800 can be improved. Thereby, the sound pressure, sound quality, and reproduction band of the sound generated by the vibration of the display panel 200 can be improved.

[0134] FIG. 8A is a diagram showing the second support member and the third support member according to the embodiments of this specification. FIG. 8B is a diagram showing the second support member and the third support member according to the embodiments of this specification. FIG. 8C is a diagram showing the second support member and the third support member according to the embodiments of this specification.

[0135] Referring to FIGS. 5, 8A to 8C, the second support member 600 can be disposed on the back surface of the first support member 500. For example, the second support member 600 can have a structure in which a part of the drive circuit unit 300 drawn out (or extended) through the hole (H) of the first support member 500 can be seated on the back surface of the first support member 500. For example, the second support member 600 can have a structure in which the printed circuit board 330 of the drive circuit unit 300 can be disposed. For example, the second support member 600 can be disposed between the back surface of the first support member 500 and the printed circuit board 330 and can support the printed circuit board 330. For example, the printed circuit board 330 can be disposed on the back surface of the second support member 600. For example, the printed circuit board 330 can be disposed on the side surface of the second support member 600.

[0136] The second support member 600 according to the embodiments of the present specification can be composed of one or a plurality of plates. For example, the second support member 600 can have a structure in which a plurality of plates are arranged in a "⊃" shape, but is not limited thereto. For example, a number of plates can be integrally formed.

[0137] Referring to FIGS. 5 and 8A, the second support member 600 can include a second-1 plate (or second-1 support plate) 610. For example, the printed circuit board 330 of the drive circuit unit 300 can be disposed on the back surface of the second-1 plate 610. For example, the second-1 plate 610 can have a flat shape, but is not limited thereto. For example, a part of the flexible circuit film 310 connected to the printed circuit board 330 can be disposed on the back surface of the second-1 plate 610.

[0138] According to an embodiment of the present specification, the printed circuit board 330 may be disposed on the back surface of the second-1 plate 610 via the third-1 support member 710. For example, the third-1 support member 710 may be disposed between the back surface of the second-1 plate 610 and the printed circuit board 330. For example, when the flexible circuit film 310 is disposed on the back surface of the second-1 plate 610, the third-1 support member 710 may be disposed between the flexible circuit film 310 disposed on the back surface of the second-1 plate 610 and the second-1 plate 610.

[0139] According to an embodiment of the present specification, the third-1 support member 710 may include, but is not limited to, an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad. For example, the adhesive resin and / or the adhesive layer of the third-1 support member 710 may include, but is not limited to, an acrylic-based or urethane-based adhesive substance. For example, the adhesive resin and / or the adhesive layer of the third-1 support member 710 may include a urethane-based adhesive substance having relatively soft characteristics rather than an acrylic-based adhesive substance having relatively high hardness characteristics in order to prevent or minimize the transmission of the vibration of the third-1 support member 710 due to the vibration of the vibration device 800 to the support frame 400, but is not limited thereto.

[0140] According to an embodiment of the present specification, the second-1 plate 610 may be disposed horizontally (or parallel) to the display panel 200 on the bottom surface (or the first surface) of the first support member 500, for example, on the back surface of the first-1 plate 510 of the first support member 500. For example, the second-1 plate 610 may be connected (or coupled) to the first-1 plate 510 and horizontally extended in the outer direction or one side direction of the first support member 500 and may also overlap with the forming portion 520 and the first-2 plate 530.

[0141] According to the embodiments of this specification, the second - 1 plate 610 can be disposed on the back surface of the first - 1 plate 510 via a third connecting member (or a third coupling member) 640. For example, the second - 1 plate 610 includes an extension portion 615 extending from one end (or one side), and the extension portion 615 can be connected (or coupled) to the back surface of the first - 1 plate 510 via the third connecting member 640.

[0142] According to the embodiments of this specification, a plurality of the third connecting members 640 can be arranged on the second - 1 plate 610. As an example, the third connecting member 640 can be a screw or a bolt, but is not limited thereto. For example, when the third connecting member 640 is a screw or a bolt, the third connecting member 640 can be fastened from the back surface of the second - 1 plate 610 toward the first - 1 plate 510 side. For example, holes for facilitating the coupling (or fastening) of the third connecting member 640 can be formed in the region of the second - 1 plate 610 where the third connecting member 640 is disposed.

[0143] As another embodiment of this specification, the third connecting member 640 can include, but is not limited to, an adhesive resin, a double - sided tape having an adhesive layer, or a double - sided foam pad. For example, the third connecting member 640 can be disposed between the first - 1 plate 510 and the second - 1 plate 610. For example, the adhesive resin and / or the adhesive layer of the third connecting member 640 can include, but is not limited to, an acrylic - based or urethane - based adhesive substance. For example, the adhesive resin and / or the adhesive layer of the third connecting member 640 can include a urethane - based adhesive substance having relatively soft characteristics rather than an acrylic - based adhesive substance having relatively high hardness characteristics in order to prevent or minimize the transmission of the vibration of the second support member 600 due to the vibration of the vibration device 800 to the support frame 400, but is not limited thereto.

[0144] Referring to FIGS. 5 and 8B, the second support member 600 can further include a second - 2 plate (or a second - 2 support plate) 620 that is bent and extended from the other end of the second - 1 plate 610 toward the display panel 200.

[0145] According to the embodiments of the present specification, the flexible circuit film 310 passes through the hole (H) of the first support member 500 and extends along the outer side or one side of the second-2 plate 620 to the back side of the second-1 plate 610, and can be stably arranged on the second-2 plate 620 via the third-2 support member 720. For example, the third-2 support member 720 can be arranged between the second-2 plate 620 and the flexible circuit film 310. According to the embodiments of the present specification, the printed circuit board 330 of the drive circuit unit 300 can be arranged on the second-2 plate 620. For example, the printed circuit board 330 can be arranged outside the second-2 plate 620 via the third-2 support member 720. For example, the third-2 support member 720 can be arranged between the second-2 plate 620 and the printed circuit board 330. For example, the third-2 support member 720 can be integrally formed with the third-1 support member 710. For example, the third-2 support member 720 can be separately configured from the third-1 support member 710.

[0146] According to the embodiments of the present specification, one end (or one side) of the second-2 plate 620 can be connected to the other end (or the other side) of the second-1 plate 610. For example, the other end (or the other side) of the second-2 plate 620 can be arranged on the lower surface of the first-2 plate 530.

[0147] According to the embodiments of the present specification, the second-2 plate 620 can be arranged on the lower surface of the first-2 plate 530 via the third-3 support member 730. For example, the third-3 support member 730 can be arranged between the second-2 plate 620 and the lower surface of the first-2 plate 530. For example, the third-3 support member 730 can be integrally formed with the third-2 support member 720. For example, the third-3 support member 730 can be separately configured from the third-2 support member 720.

[0148] According to the embodiments of this specification, the 3-2 support member 720 and the 3-3 support member 730 can include, but are not limited to, an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad. For example, the adhesive resin and / or the adhesive layer of the 3-2 support member 720 and the 3-3 support member 730 can include, but are not limited to, an acrylic-based or urethane-based adhesive substance. For example, the adhesive resin and / or the adhesive layer of the 3-2 support member 720 and the 3-3 support member 730 can include a urethane-based adhesive substance having relatively soft properties rather than an acrylic-based adhesive substance having relatively high hardness properties in order to prevent or minimize the transmission of vibrations of the 3-2 support member 720 and the 3-3 support member 730 due to the vibration of the vibration device 800 to the support frame 400.

[0149] When the second support member 600 is composed only of the 2-1 plate 610, the other end (or the other side) of the 2-1 plate 610 is in a floating state and becomes vulnerable to vibrations. As a result, the printed circuit board 330 disposed on the 2-1 plate 610 may be damaged, or a peeling phenomenon may occur between the printed circuit board 330 and the flexible circuit film 310, and the data driving integrated circuit 320 may be damaged by the vibration of the flexible circuit film 310 due to the vibration of the printed circuit board 330. However, when the second support member 600 includes the 2-2 plate 620 disposed on the 1-2 plate 530, since the second support member 600 is supported by the first support member 500 based on the 2-2 plate 620, stability against the vibration of the vibration device 800 can be ensured. Therefore, it is possible to prevent the printed circuit board 330 disposed on the second support member 600 from being damaged or a peeling phenomenon between the printed circuit board 330 and the flexible circuit film 310.

[0150] Referring to FIGS. 5 and 8C, the second support member 600 can further include a second-3 plate (or second-3 support plate) 630 that is bent and extended horizontally (or parallel) from the other end (or the other side) of the second-2 plate 620 toward the inside of the first support member 500 in the direction of the display panel 200. The second-3 plate 630 can extend from the second-2 plate 620 along the back surface of the first support member 500 in the central direction of the first support member 500.

[0151] According to an embodiment of the present specification, the second-3 plate 630 can be disposed on the back surface of the first support member 500 via the third-4 support member 740. For example, the second-3 plate 630 can be disposed on the back surface of the first-2 plate 530 of the first support member 500 via the third-4 support member 740. For example, one end (or one side) of the second-3 plate 630 can be connected to the other end (or the other side) of the second-2 plate 620. For example, the other end (or the other side) of the second-3 plate 630 can be fixedly disposed on the back surface of the first-2 plate 530. For example, the third-4 support member 740 can be disposed between the first-2 plate 530 and the second-3 plate 630. For example, the third-4 support member 740 can be integrally formed with the third-3 support member 730. For example, the third-4 support member 740 can be separately configured from the third-3 support member 730.

[0152] According to the embodiments of the present specification, the third - fourth support member 740 can include, but is not limited to, an adhesive resin, a double - sided tape having an adhesive layer, or a double - sided foam pad. For example, the adhesive resin and / or the adhesive layer of the third - second support member 720 and the third - third support member 730 can include, but is not limited to, an acrylic - based or urethane - based adhesive substance. For example, the adhesive resin and / or the adhesive layer of the third - second support member 720 and the third - third support member 730 can include a urethane - based adhesive substance having relatively soft properties rather than an acrylic - based adhesive substance having relatively high hardness properties in order to prevent or minimize the transmission of vibrations of the third - second support member 720 and the third - third support member 730 due to the vibration of the vibration device 800 to the support frame 400, but is not limited thereto.

[0153] When the second support member 600 includes the second - third plate 630, the area of contact between the second support member 600 and the first support member 500 is widened by the second - third plate 630. Therefore, the second support member 600 can be more stably supported by the first support member 500. Accordingly, damage to the printed circuit board 330 disposed on the second support member 600 or the peeling phenomenon between the printed circuit board 330 and the flexible circuit film 310 can be more effectively prevented.

[0154] According to the embodiments of the present specification, the second support member 600 can further include a fourth connecting member (or a fourth coupling member) 750 for disposing the second - third plate 630 on the first - second plate 530. For example, the fourth connecting member 750 can be a screw or a bolt, but is not limited thereto. For example, when the fourth connecting member 750 is a screw or a bolt, the fourth connecting member 750 can be coupled from the front surface of the first - second plate 530 to the second - third plate 630 side. For example, holes for facilitating the coupling (or fastening) of the fourth connecting member 750 can be formed in the respective regions of the first - second plate 530 and the second - third plate 630 where the fourth connecting member 750 is disposed.

[0155] The vibration device 800 (or the first vibration device) can be disposed between the first support member 500 and the display panel 200. The vibration device 800 can be supported by the first support member 500 to vibrate the display panel 200. The vibration device 800 vibrates by a drive signal including an acoustic signal or a haptic feedback signal, and directly vibrates the display panel 200, thereby generating acoustic vibration by vibration of the display panel 200 (DVS), and also generating haptic feedback (or haptic vibration) in response to a touch of a user. For example, the vibration device 800 can generate acoustic vibration (DVS) in a mid-low frequency band. For example, the vibration device 800 can be disposed in a central region of the display panel 200.

[0156] The vibration device 800 according to an embodiment of the present specification can include a bobbin and a coil wound around the bobbin, and the bobbin can contact the back surface of the display panel 200.

[0157] According to an embodiment of the present specification, the vibration device 800 can include one or a plurality of vibration generators. For example, the vibration device 800 can include a first vibration generator 810 and a second vibration generator 830. For example, the first vibration generator 810 and the second vibration generator 830 can be coil-type vibration generators.

[0158] The first and second vibration generators 810 and 830 can be supported by the first support member 500 or housed (or accommodated) to vibrate the display panel 200. For example, each of the first and second vibration generators 810 and 830 can include a bobbin and a coil wound around the bobbin, and the bobbin can contact the back surface of the display panel 200.

[0159] The first vibration generator 810 is disposed in a first back region of the display panel 200 and can vibrate the first back region of the display panel 200.

[0160] The first vibration generator 810 can be supported or housed (or accommodated) in the first region of the first - 1 plate 510 of the first support member 500. For example, a part of the back surface of the first vibration generator 810 can be inserted into or housed (or accommodated) in the first - 1 hole 551 formed in the first - 1 region of the first - 1 plate 510.

[0161] The first vibration generator 810 vibrates by a first driving signal including an acoustic signal and / or a haptic feedback signal, and directly vibrates the first back region of the display panel 200, thereby generating acoustic (DVS) due to the vibration of the display panel 200 and generating haptic feedback (or haptic vibration) in response to a user's touch.

[0162] The second vibration generator 830 is disposed in the second back region of the display panel 200 and can vibrate the second back region of the display panel 200.

[0163] The second vibration generator 830 can be supported or housed (or accommodated) in the second region of the first - 1 plate 510 of the first support member 500. For example, a part of the back surface of the second vibration generator 830 can be inserted into or housed (or accommodated) in the first - 2 hole 552 formed in the first - 2 region of the first - 1 plate 510.

[0164] The second vibration generator 830 vibrates by a second driving signal including an acoustic signal or a haptic feedback signal, and directly vibrates the second back region of the display panel 200, thereby generating acoustic (DVS) due to the vibration of the display panel 200 and generating haptic feedback (or haptic vibration) in response to a user's touch.

[0165] The first driving signal and the second driving signal can be the same as or different from each other. For example, the first driving signal can include a left acoustic signal or a first haptic feedback signal for the first region (or left region) (A1) of the display panel 200. The second driving signal can include a right acoustic signal or a second haptic feedback signal for the second region (or right region) (A2) of the display panel 200.

[0166] Each of the first and second vibration generators 810 and 830 can be arranged on the first support member 500 so as to be symmetric about the center line (or the horizontal length center line) (CL) of the display panel 200, and can include substantially the same structure as each other. Each of the first and second vibration generators 810 and 830 can be represented by, but is not limited to, a vibration module, a vibration unit, an actuator, an exciter, or a transducer.

[0167] Therefore, the display device according to the embodiments of the present specification can output sound in front of the display panel 200 by using the display panel 200 as a diaphragm for sound generation, whereby the sound quality can be improved and the immersion feeling of the viewer can be enhanced.

[0168] In addition, in the display device according to the embodiments of the present specification, since the printed circuit board 330 connected to the display panel 200 is not disposed between the display panel 200 and the first support member 500, the vibration device 800 can be freely arranged without being affected by the printed circuit board 330. Thereby, the sound pressure, sound quality, and reproduction band of the sound generated by the vibration of the display panel 200 can be increased through the effective arrangement of the vibration device 800.

[0169] In addition, in the display device according to the embodiment of the present specification, the printed circuit board 330 connected to the display panel 200 is located on the back surface of the first support member 500 and is separated from the back surface of the display panel 200, so that damage to the printed circuit board 330 caused by vibration of the display panel 200 can be prevented or minimized.

[0170] Referring to FIGS. 3 to 5, the display device according to the embodiment of the present specification may further include a heat dissipation member 900 disposed on the back surface. For example, the heat dissipation member 900 may be disposed between the back surface of the display panel 200 and the vibration device 800. For example, the heat dissipation member 900 may be formed of a metal material having high thermal conductivity, such as any one or more of aluminum (Al), copper (Cu), silver (Ag), and magnesium (Mg), or an alloy thereof, but is not limited thereto. The heat dissipation member 900 can be expressed by other terms such as a heat diffusion member, a heat diffusion sheet, a heat diffusion layer, a heat diffusion plate, a heat sink, a heat dissipation sheet, a heat dissipation layer, or a heat dissipation plate, and is not limited to these terms.

[0171] Since the heat dissipation member 900 is disposed on the back surface of the display panel 200 so as to overlap the vibration device 800, by diffusing the heat generated during the driving of the vibration device 800 toward the display panel 200, it is possible to prevent a decrease in the performance of the vibration device 800 due to heat. In addition, the heat dissipation member 900 has a size relatively the same as or wider than that of the vibration device 800 with the center of the vibration device 800 as the center, so that the heat generated during the driving of the vibration device 800 is diffused over a wide area, thereby preventing the heat from being intensively transmitted to a local area of the display panel 200 that overlaps the vibration device 800. Thereby, it is possible to prevent or minimize a local luminance non-uniformity phenomenon of the display panel 200.

[0172] The display device according to an embodiment of the present specification may further include a fifth connecting member 1000 disposed between the display panel 200 and the first support member 500. For example, the fifth connecting member 1000 may be disposed between the back surface of the display panel 200 and the first edge portion of the first support member 500. For example, the fifth connecting member 1000 may be disposed on the front surface of the first support member 500 adjacent to the hole (H) of the first support member 500. For example, the fifth connecting member 1000 may be disposed in the second-2 region 533 of the first-2 plate 530 located between the vibration device 800 and the hole (H).

[0173] According to an embodiment of the present specification, the fifth connecting member 1000 may have a hexahedron shape having a predetermined length in the length direction (Y), but is not limited thereto. For example, the fifth connecting member 1000 may have a length corresponding to the length of the hole (H). For example, the fifth connecting member 1000 may be arranged side by side with the adjacent edge portions of the support frame 400. For example, each of both ends in the length direction (Y) of the fifth connecting member 1000 may contact the edge portion of the support frame 400.

[0174] The fifth connecting member 1000 may include, but is not limited to, an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad. For example, the adhesive resin and / or the adhesive layer of the fifth connecting member 1000 may include, but is not limited to, an acrylic-based or urethane-based adhesive substance.

[0175] According to an embodiment of the present specification, the fifth connecting member 1000 can increase the bonding force between the display panel 200 and the first support member 500. For example, the fifth connecting member 1000 can block the air from escaping through the hole (H) and prevent the sound pressure in the air gap (AG) from fluctuating.

[0176] FIG. 9 is a plan view showing a support device according to an embodiment of the present specification.

[0177] Referring to FIGS. 3, 4, and 9, the display device according to the embodiments of the present specification may further include a support device 1100 for supporting the vibration device 800. For example, the support device 1100 may be disposed between the first support member 500 and the back surface of the vibration device 800 and can support the vibration device 800. For example, the support device 1100 may be a molded structure that can be manufactured by a molding method using a material such as plastic, but is not limited thereto.

[0178] According to an embodiment of the present specification, the support device 1100 may be an integrated support device that fixes and / or supports the first vibration generator 810 and the second vibration generator 830 so as to be adjacent to each other. Therefore, the first vibration generator 810 and the second vibration generator 830 fixed by the support device 1100 can be a pair of vibration generators.

[0179] According to an embodiment of the present specification, the support device 1100 may include, but is not limited to, a support portion 1110 that supports an edge portion of the back surface of the vibration device 800, a housing portion 1120 in which a part of the back surface of the vibration device 800 is housed, and a plurality of connection portions 1130 for fixing and / or connecting the first support member 500 and the vibration device 800.

[0180] According to an embodiment of the present specification, the support portion 1110 may be in a flat plate shape, and the housing portion 1120 and the connection portion 1130 may be provided on the support portion 1110. For example, the support portion 1110 may be disposed between the first support member 500 and the back surface of the end of the vibration device 800. For example, the support portion 1110 may be supported by the first support member 500 and can support the vibration device 800.

[0181] According to the embodiments of the present specification, the accommodating portion 1120 can accommodate (or store) a part of the back surface of the vibrating device 800 to be inserted or accommodated. For example, the accommodating portion 1120 can be provided on the supporting portion 1110 so as to correspond to the first hole 550 provided on the first-1 plate 510 of the first supporting member 500. For example, the accommodating portion 1120 can include a first accommodating portion 1121 that accommodates (or stores) a part of the back surface of the first vibration generator 810, and a second accommodating portion 1123 that accommodates (or stores) a part of the back surface of the second vibration generator 830. For example, each of the first accommodating portion 1121 and the second accommodating portion 1123 can be provided on the supporting portion 1110 so as to correspond to the first-1 hole 551 and the first-2 hole 552 provided on the first-1 plate 510 of the first supporting member 500, respectively.

[0182] According to the embodiments of the present specification, the accommodating portion 1120 can be a home having a shape dug in a concave shape from the edge of the side surface of the supporting portion 1110 toward the center, but is not limited thereto. For example, the accommodating portion 1120 can have a shape corresponding to the shape of a part of the vibrating device 800 to be accommodated (or stored).

[0183] According to the embodiments of the present specification, the connecting portion 1130 can be a structure for coupling or connecting the supporting device 1100 and the first supporting member 500. A number of the connecting portions 1130 can be arranged on the edge portion of the supporting portion 1110. For example, the connecting portion 1130 can include a protruding portion having a hook shape that protrudes from the edge portion of the supporting portion 1110. For example, the connecting portion 1130 can include four protruding portions 1131, 1132, 1133, and 1134 that protrude in a hook shape from each of the four corner regions 1111, 1112, 1113, and 1114 of the supporting portion 1110.

[0184] The support device 1100 can include a coupling hole 1115 provided by the support portion 1110 and the coupling portion 1130. For example, the support device 1100 can include coupling holes 1115a, 1115b, 1115c, and 1115d provided by the support portion 1110 and the respective protrusions 1131, 1132, 1133, and 1134. For example, the coupling hole 1115 can be provided to correspond to the fourth hole 580 provided in the first - 1 plate 510 of the first support member 500.

[0185] According to an embodiment of the present specification, the support device 1100 can be coupled to the first support member 500 via the sixth coupling member 1140. For example, the sixth coupling member 1140 can be a screw or a bolt, but is not limited thereto. For example, the sixth coupling member 1140 can be inserted from the back surface of the first support member 500 through the fourth hole 580 and then connected (or fastened) to the coupling hole 1115 of the support device 1100.

[0186] The display device and the vibration device according to an embodiment of the present specification can further include a second vibration device 1200 disposed on the back surface of the display panel 200. The second vibration device 1200 can vibrate the display panel 200 to generate sound. For example, the second vibration device 1200 can be disposed between the first support member 500 and the display panel 200. The second vibration device 1200 vibrates in response to a drive signal including an acoustic signal or / and a haptic feedback signal to vibrate the display panel 200 or directly vibrate it, thereby generating an acoustic (DVS) due to the vibration of the display panel 200 or generating a haptic feedback (or haptic vibration) in response to a user's touch. For example, the second vibration device 1200 can generate an acoustic (DVS) in the mid - to - high frequency range. For example, the second vibration device 1200 can be disposed at the edge portion of the display panel 200.

[0187] The second vibration device 1200 according to the embodiments of this specification may be composed of a different type of vibration generator from the vibration device (or the first vibration device) 800. For example, the second vibration device 1200 may be composed of a film-type vibration generator. For example, the second vibration device 1200 may be composed of one or a plurality of film-type vibration generators.

[0188] Referring to FIGS. 3 and 4, the second vibration device 1200 according to the embodiments of this specification may include a third vibration generator 1210 and a fourth vibration generator 1230. The third vibration generator 1210 is disposed in the third back region of the display panel 200 and can vibrate the third back region of the display panel 200. The fourth vibration generator 1230 is disposed in the fourth back region of the display panel 200 and can vibrate the fourth back region of the display panel 200.

[0189] The third vibration generator 1210 vibrates by a third driving signal including an acoustic signal or / and a haptic feedback signal to vibrate the third back region of the display panel 200 or directly vibrate, thereby generating acoustic by vibration of the display panel 200 (DVS) or generating haptic feedback (or haptic vibration) in response to the user's touch.

[0190] The fourth vibration generator 1230 vibrates by a fourth driving signal including an acoustic signal or / and a haptic feedback signal to vibrate the fourth back region of the display panel 200 or directly vibrate, thereby generating acoustic by vibration of the display panel 200 (DVS) or generating haptic feedback (or haptic vibration) in response to the user's touch.

[0191] The third drive signal and the fourth drive signal can be the same as or different from each other. For example, the third drive signal can include a left acoustic signal or a third haptic feedback signal for the first region (or left region) (A1) of the display panel 200. The fourth drive signal can include a right acoustic signal or a fourth haptic feedback signal for the second region (or right region) (A2) of the display panel 200.

[0192] Each of the third and fourth vibration generators 1210 and 1230 can be arranged on the first support member 500 so as to be symmetric with respect to the center line (or the horizontal length center line) (CL) of the display panel 200, and can include substantially the same structure as each other. Each of the third and fourth vibration generators 1210 and 1230 can be represented by, but not limited to, a flexible acoustic generator, a flexible actuator, a flexible speaker, a flexible piezoelectric speaker, a film actuator, a film-type piezoelectric composite actuator, a film speaker, a film-type piezoelectric speaker, or a film-type piezoelectric composite speaker.

[0193] FIG. 10 is a diagram showing a second vibration device according to an embodiment of the present specification.

[0194] Referring to FIG. 10, the second vibration device 1200 according to an embodiment of the present specification can include a piezoelectric vibration unit 1201, a first electrode unit (E1), and a second electrode unit (E2).

[0195] The piezoelectric vibration unit 1201 can include a piezoelectric material including the piezoelectric effect, or a piezoelectric material (or electroactive material). For example, the piezoelectric material can have the property that when a pressure or torsional phenomenon acts on the crystal structure by an external force, a potential difference is generated due to the dielectric polarization accompanying the change in the relative positions of positive (+) ions and negative (-) ions, and conversely, vibration is generated by an electric field due to an applied voltage. The piezoelectric vibration unit 1201 can be expressed by other terms such as a vibration layer, a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a vibration part, a piezoelectric material part, an electroactive part, a piezoelectric structure, an inorganic material layer, or an inorganic material part, and is not limited thereto.

[0196] The piezoelectric vibration unit 1201 is composed of a transparent, translucent, or opaque piezoelectric material (or electroactive material) and can be transparent, translucent, or opaque. The piezoelectric vibration unit 1201 can be composed of a ceramic-based material capable of achieving relatively high vibration, or a piezoelectric ceramic having a perovskite crystal structure. The perovskite crystal structure can have piezoelectric and inverse piezoelectric effects and can be a plate-like structure having orientation. The perovskite crystal structure can be represented by the chemical formula ABO3, where the A site can consist of a divalent metal element and the B site can consist of a tetravalent metal element. For example, in the chemical formula ABO3, the A site and the B site can be cations and O can be an anion. For example, the chemical formula ABO3 can include at least one of PbTiO3, PbZrO3, PbZrTiO3, BaTiO3, and SrTiO3, and is not limited thereto.

[0197] The piezoelectric vibrating part 1201 according to the embodiment of this specification can include a PZT (lead zirconate titanate) - based material containing lead (Pb), zirconium (Zr), and titanium (Ti), or a PZNN (lead zirconate nickel niobate) - based material containing lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but is not limited thereto. Alternatively, the piezoelectric vibrating part 1201 can include at least one or more of CaTiO3, BaTiO3, and SrTiO3 that do not contain lead (Pb), but is not limited thereto.

[0198] The piezoelectric vibrating part 1201 according to the embodiment of this specification can be configured in a circular form, an elliptical form, or a polygonal form, but is not limited thereto.

[0199] The first electrode part (E1) is disposed on the first surface (or the upper surface) of the piezoelectric vibrating part 1201 and can be electrically connected to the first surface of the piezoelectric vibrating part 1201. For example, the first electrode part (E1) can have a single - body electrode shape disposed on the entire first surface of the piezoelectric vibrating part 1201. For example, the first electrode part (E1) can have the same form as the piezoelectric vibrating part 1201, but is not limited thereto. The first electrode part (E1) according to the embodiment of this specification can be made of a transparent conductive material, a semi - transparent conductive material, or an opaque conductive material. For example, the transparent or semi - transparent conductive material can include, but is not limited to, ITO (indium tin oxide) or IZO (indium zinc oxide). The opaque conductive material can include aluminum (Al), copper (Cu), gold (Au), silver (Ag), molybdenum (Mo), or magnesium (Mg), etc., or can be composed of alloys thereof, but is not limited thereto.

[0200] The second electrode portion (E2) is disposed on the second surface (or the back surface) opposite to the first surface of the piezoelectric vibration portion 1201 and can be electrically connected to the second surface of the piezoelectric vibration portion 1201. For example, the second electrode portion (E2) can have a single-body electrode shape disposed on the entire second surface of the piezoelectric vibration portion 1201. For example, the second electrode portion (E2) can have the same form as the piezoelectric vibration portion 1201 while having a size larger than that of the piezoelectric vibration portion 1201, but is not limited thereto. The second electrode portion (E2) according to the embodiments of the present specification can be made of a transparent conductive material, a translucent conductive material, or an opaque conductive material. For example, the second electrode portion (E2) can be made of the same material as the first electrode portion (E1), but is not limited thereto. As another example, the second electrode portion (E2) can be composed of a material different from that of the first electrode portion (E1).

[0201] The piezoelectric vibration portion 1201 can be polarized (or poled) by a constant voltage applied to the first electrode portion (E1) and the second electrode portion (E2) in a constant temperature atmosphere or a temperature atmosphere changing from high temperature to normal temperature, but is not limited thereto. For example, the piezoelectric vibration portion 1201 can vibrate by alternately or repeatedly contracting and expanding due to the inverse piezoelectric effect caused by an acoustic signal (or voice signal) externally applied to the first electrode portion (E1) and the second electrode portion (E2).

[0202] The second vibration device 1200 according to the embodiments of the present specification can further include a first protection member and a second protection member.

[0203] The first protection member is disposed on the first electrode portion (E1) and can protect the first electrode portion (E1). For example, the first protection member can be made of a plastic material, a fiber material, or a wood material, but is not limited thereto.

[0204] The second protective member is disposed on the second electrode portion (E2) and can protect the second electrode portion (E2). For example, the second protective member can be made of a plastic material, a fiber material, or a wood material, but is not limited thereto. For example, the first protective member can be made of the same or another material as the second protective member. One or more of the first protective member and the second protective member can be attached or bonded to the display panel via an adhesive member.

[0205] FIG. 11 is a diagram showing a second vibration device according to another embodiment of the present specification.

[0206] Referring to FIG. 11, the second vibration device 1200 according to another embodiment of the present specification can include a piezoelectric vibration unit 1203, a first electrode portion (E1), and a second electrode portion (E2).

[0207] The piezoelectric vibration unit 1203 can include at least one of a piezoelectric material including a piezoelectric effect, a composite piezoelectric material, or an electroactive material. The piezoelectric vibration unit 1203 can be expressed in other terms such as a vibration layer, a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a vibration unit, a piezoelectric material unit, an electroactive unit, a piezoelectric structure, a piezoelectric composite layer, a piezoelectric composite, or a piezoelectric ceramic composite. The piezoelectric vibration unit 1203 is composed of a transparent, translucent, or opaque piezoelectric material and can be transparent, translucent, or opaque.

[0208] The piezoelectric vibration unit 1203 according to the embodiment of the present specification can include a plurality of first portions 1203a and a plurality of second portions 1203b. For example, the plurality of first portions 1203a and the plurality of second portions 1203b can be alternately and repeatedly arranged along the first direction (X direction) (or the second direction (Y)). For example, the first direction (X direction) can be the lateral direction of the piezoelectric vibration unit 1203. The second direction (Y direction) can be the longitudinal direction of the piezoelectric vibration unit 1203 that intersects the first direction (X direction). However, it is not limited thereto, and the first direction (X direction) can be the longitudinal direction of the piezoelectric vibration unit 1203, and the second direction (Y direction) can be the lateral direction of the piezoelectric vibration unit 1203.

[0209] Each of the plurality of first portions 1203a may be composed of an inorganic material portion. The inorganic material portion may include the piezoelectric material described above. For example, since each of the plurality of first portions 1203a may be made of a piezoelectric material substantially the same as the piezoelectric vibration portion 1201 described in FIG. 10, redundant description thereof will be omitted.

[0210] Each of the plurality of first portions 1203a according to the embodiments of the present specification may be disposed between the plurality of second portions 1203b. For example, each of the plurality of first portions 1203a may have a length parallel to the second direction (Y direction) (or the first direction (X direction)) while having a first width (W1) parallel to the first direction (X direction) (or the second direction (Y direction)). Each of the plurality of second portions 1203b may have a length parallel to the second direction (Y direction) (or the first direction (X direction)) while having a second width (W2) parallel to the first direction (X direction) (or the second direction (Y direction)). The first width (W1) may be the same as or different from the second width (W2). For example, the first width (W1) may be larger than the second width (W2). For example, the first portion 1203a and the second portion 1203b may include a line form or a stripe form having the same or different sizes from each other. Therefore, the piezoelectric vibration unit 1203 can have a resonance frequency of 20 kHz or less by having a 2-2 composite structure, but is not limited thereto, and the resonance frequency of the piezoelectric vibration unit 1203 can be changed by at least one of the form, length, and thickness.

[0211] In the piezoelectric vibration unit 1203, each of the plurality of first portions 1203a and the plurality of second portions 1203b can be arranged (or arrayed) side by side in the same plane (or the same layer). Each of the plurality of second portions 1203b can be connected or adhered to an adjacent first portion 1203a. For example, each of the plurality of second portions 1203b can be connected or adhered to an adjacent first portion 1203a by being configured to fill a gap between two adjacent first portions 1203a. Thereby, the piezoelectric vibration unit 1203 can be extended to a desired size or length by side bonding (or connection) of the first portion 1203a and the second portion 1203b.

[0212] In the piezoelectric vibration unit 1203, the width (W2) of each of the plurality of second portions 1203b can gradually decrease from the middle portion of the piezoelectric vibration unit 1203 or the second vibration device 1200 toward both edge portions (or both tips).

[0213] According to the embodiments of this specification, the second portion 1203b having the largest width (W2) among the plurality of second portions 1203b can be located at the portion where the largest stress is concentrated when the piezoelectric vibration portion 1203 or the second vibration device 1200 vibrates in the vertical direction (Z direction) (or the thickness direction). The second portion 1203b having the smallest width (W2) among the plurality of second portions 1203 can be located at the portion where the relatively smallest stress is generated when the piezoelectric vibration portion 1203 or the second vibration device 1200 vibrates in the vertical direction (Z direction). For example, the second portion 1203b having the largest width (W2) among the plurality of second portions 1203b can be arranged in the middle portion of the piezoelectric vibration portion 1203. The second portion 1203b having the smallest width (W2) among the plurality of second portions 1203b can be arranged at both edge portions of the piezoelectric vibration portion 1203. Thereby, when the piezoelectric vibration portion 1203 or the second vibration device 1200 vibrates in the vertical direction (Z direction), the interference of sound waves or the superposition of resonance frequencies generated at the portion where the largest stress is concentrated can be minimized, whereby the dipping phenomenon of the sound pressure generated in the low frequency band can be improved, and the flatness of the acoustic characteristics in the low frequency band can be improved. For example, the flatness of the acoustic characteristics can be the magnitude of the deviation between the maximum sound pressure and the minimum sound pressure.

[0214] In the piezoelectric vibration portion 1203, each of the plurality of first portions 1203a can have different sizes (or widths or breadths). For example, the size (or width or breadth) of each of the plurality of first portions 1203a can gradually decrease or increase from the middle portion of the piezoelectric vibration portion 1203 or the second vibration device 1200 toward both edge portions (or both tips). In this case, the piezoelectric vibration portion 1203 can improve the sound pressure characteristics of the sound by various natural vibration frequencies caused by the vibrations of the plurality of first portions 1203a having different sizes, and the reproduction band of the sound can be expanded.

[0215] Each of the plurality of second portions 1203b can be disposed between the plurality of first portions 1203a. Thereby, in the piezoelectric vibrating section 1203 or the second vibrating device 1200, the vibration energy due to the links within the unit cell of the first portion 1203a can be increased by the second portion 1203b, so that the vibration characteristics can be increased, and the piezoelectric characteristics and flexibility can be ensured. For example, the second portion 1203b can be one or more of an epoxy-based polymer, an acrylic-based polymer, and a silicone-based polymer, but is not limited thereto.

[0216] The plurality of second portions 1203b according to the embodiments of the present specification can be composed of an organic material portion. For example, by being disposed between the inorganic material portions, the organic material portion can absorb the impact applied to the inorganic material portions (or the first portions), release the stress concentrated on the inorganic material portions, improve the durability of the piezoelectric vibrating section 1203 or the second vibrating device 1200, and can provide flexibility to the piezoelectric vibrating section 1203 or the second vibrating device 1200.

[0217] The second portion 1203b according to the embodiments of the present specification can have a low modulus (Young's modulus) and viscoelasticity as compared with the first portion 1203a, thereby improving the reliability of the first portion 1203a which is vulnerable to impact due to the brittle characteristics of the first portion 1203a. For example, the second portion 1203b can be composed of a material having a loss factor of 0.01 to 1 and a modulus of 0.1 to 10 GPa.

[0218] The organic material portion constituting the second portion 1203b can include an organic material, an organic polymer, an organic piezoelectric material, or an organic non-piezoelectric material having flexible characteristics as compared with the inorganic material portion of the first portion 1203a. For example, the second portion 1203b can be represented by, but is not limited to, an adhesive portion having flexibility, a stretching portion, a bending portion, a damping portion, or a soft portion.

[0219] According to an embodiment of the present specification, the piezoelectric vibrating part 1203 can have the form of a single thin film by arranging (or connecting) a plurality of first parts 1203a and second parts 1203b on the same plane. For example, the piezoelectric vibrating part 1203 can have a structure in which a plurality of first parts 1203a are connected to one side. For example, the plurality of first parts 1203a can have a structure that is connected throughout the piezoelectric vibrating part 1203. For example, the piezoelectric vibrating part 1203 can vibrate in the vertical direction by the first part 1203a having vibration characteristics and can be bent into a curved surface form by the second part 1203b having flexibility. Further, in the piezoelectric vibrating part 1203 according to an embodiment of the present specification, the size of the first part 1203a and the size of the second part 1203b can be set according to the piezoelectric characteristics and flexibility required for the piezoelectric vibrating part 1203 or the second vibrating device 1200. As an example, in the case of the piezoelectric vibrating part 1203 that requires piezoelectric characteristics rather than flexibility, the size of the first part 1203a can be set larger than the size of the second part 1203b. As another example, in the case of the piezoelectric vibrating part 1203 that requires flexibility rather than piezoelectric characteristics, the size of the second part 1203b can be set larger than the size of the first part 1203a. Therefore, since the size of the piezoelectric vibrating part 1203 can be adjusted according to the required characteristics, there is an advantage that the design of the piezoelectric vibrating part 1203 is easy.

[0220] The first electrode part (E1) can be arranged on the first surface (or upper surface) of the piezoelectric vibrating part 1203. The first electrode part (E1) can be commonly arranged or coupled to the first surface of each of the plurality of first parts 1203a and the first surface of each of the plurality of second parts 1203b, and can be electrically connected to the first surface of each of the plurality of first parts 1203a. For example, the first electrode part (E1) can have a single body electrode form arranged on the entire first surface of the piezoelectric vibrating part 1203. For example, the first electrode part (E1) can have a form substantially the same as that of the piezoelectric vibrating part 1203, but is not limited thereto. The first electrode part (E1) according to an embodiment of the present specification can be made of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material as described in FIG. 10.

[0221] The second electrode portion (E2) can be disposed on the second surface (or the back surface) opposite to the first surface of the piezoelectric vibration portion 1203. The second electrode portion (E2) can be commonly disposed or coupled to the second surfaces of the respective plurality of first portions 1203a and the second surfaces of the respective plurality of second portions 1203b. Each of the second surfaces of the plurality of first portions 1203a can be electrically connected. The second electrode portion (E2) can have a single electrode form disposed on the entire second surface of the piezoelectric vibration portion 1203. For example, the second electrode portion (E2) can have the same form as the piezoelectric vibration portion 1203, but is not limited thereto. The second electrode portion (E2) according to the embodiment of the present specification can be made of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material, as described with reference to FIG. 10.

[0222] The piezoelectric vibration portion 1203 can be polarized (or poled) by a constant voltage applied to the first electrode portion (E1) and the second electrode portion (E2) in a constant temperature atmosphere or a temperature atmosphere that changes from a high temperature to a normal temperature, but is not limited thereto. For example, the piezoelectric vibration portion 1203 can vibrate by alternately repeating contraction and expansion due to the inverse piezoelectric effect by an acoustic signal (or voice signal) externally applied to the first electrode portion (E1) and the second electrode portion (E2). For example, the piezoelectric vibration portion 1203 can vibrate by vibration in the vertical direction (or thickness direction) (d33) and vibration in the plane direction (d31) by the first electrode portion (E1) and the second electrode portion (E2). The piezoelectric vibration portion 1203 can increase the displacement of the device or the display device by contraction and expansion in the plane direction, thereby improving the vibration of the device or the display device.

[0223] According to some embodiments of the present specification, the second vibration device 1200 can include a plurality of inorganic material portions having piezoelectric characteristics and an organic material portion between the plurality of inorganic material portions. For example, the second vibration device 1200 can include a plurality of inorganic material portions having piezoelectric characteristics and an organic material portion connected between the plurality of inorganic material portions.

[0224] The second vibration device 1200 according to other embodiments of this specification may further include a first protection member and a second protection member.

[0225] The first protection member is disposed on the first electrode portion (E1) and can protect the first electrode portion (E1). For example, the first protection member can be made of a plastic material, a fiber material, or a wood material, but is not limited thereto.

[0226] The second protection member is disposed on the second electrode portion (E2) and can protect the second electrode portion (E2). For example, the second protection member can be made of a plastic material, a fiber material, or a wood material. For example, the first protection member can be made of the same or other materials as the second protection member. One or more of the first protection member and the second protection member can be attached or coupled to the device or the display device via an adhesive member.

[0227] FIG. 12 is a diagram showing a second vibration device according to other embodiments of this specification. FIG. 12 is a modification of the piezoelectric vibration unit described in FIG. 11. Accordingly, in the following description, redundant descriptions of the remaining configurations except for the piezoelectric vibration unit are omitted or simplified.

[0228] Referring to FIG. 12, in the second vibration device 1200 according to other embodiments of this specification, the piezoelectric vibration unit 1203 may include a plurality of first portions 1203a spaced apart from each other along a first direction (X direction) and a second direction (Y direction), and a second portion 1203b disposed between the plurality of first portions 1203a.

[0229] Each of the plurality of first portions 1203a can be arranged to be spaced apart from each other along each of the first direction (X direction) and the second direction (Y direction). For example, each of the plurality of first portions 1203a can be arranged in a lattice form while having a hexahedral shape with the same size as each other. Since each of the plurality of first portions 1203a can be made of a piezoelectric material substantially the same as the first portion 1203a described in FIG. 11, the same reference numerals are assigned thereto, and redundant descriptions thereof are simplified.

[0230] The second portion 1203b can be arranged between the plurality of first portions 1203a along each of the first direction (X direction) and the second direction (Y direction). The second portion 1203b can be connected or adhered to the adjacent first portion 1203a by filling the gap between two adjacent first portions 1203a or by being configured to surround each of the plurality of first portions 1203a. According to the embodiment of the present specification, the width of the second portion 1203b arranged between two adjacent first portions 1203a along the first direction (X direction) can be the same as or different from the width of the first portion 1203a. The width of the second portion 1203b arranged between two adjacent first portions 1203a along the second direction (Y direction) can be the same as or different from the width of the first portion 1203a. Since the plurality of second portions 1203b can be made of an organic material substantially the same as the second portion 1203b described in FIG. 11, the same reference numerals are assigned thereto, and redundant descriptions thereof are simplified.

[0231] Thus, the piezoelectric vibration unit 1203 of the second vibration device 1200 according to another embodiment of the present specification can include a 1-3 composite structure and can have a resonance frequency of 30 MHz or less, but is not limited thereto. For example, the resonance frequency of the piezoelectric vibration unit 1203 can be changed by at least one of the shape, length, and thickness.

[0232] FIG. 13 is a diagram showing a second vibration device according to another embodiment of the present specification. This is a modification of the piezoelectric vibration unit 1203 described in FIG. 11. Accordingly, in the following description, redundant descriptions of the remaining configurations except for the piezoelectric vibration unit are omitted or simplified.

[0233] Referring to FIG. 13, in a second vibration device 1200 according to another embodiment of the present specification, the piezoelectric vibration unit 1203 may include a plurality of first portions 1203a spaced apart from each other along a first direction (X direction) and a second direction (Y direction), and a second portion 1203b disposed between the plurality of first portions 1203a.

[0234] Each of the plurality of first portions 1203a according to an embodiment of the present specification may have a planar structure in the form of a circle. For example, each of the plurality of first portions 1203a may have the form of a disk, but is not limited thereto. For example, each of the plurality of first portions 1203a may have a point form including an elliptical form, a polygonal form, or a donut form.

[0235] The second portion 1203b may be disposed between the plurality of first portions 1203a along each of the first direction (X direction) and the second direction (Y direction). By being configured to surround each of the plurality of first portions 1203a, the second portion 1203b may be connected or adhered to the side surfaces of each of the plurality of first portions 1203a. Each of the plurality of first portions 1203a and the second portion 1203b may be arranged (or arrayed) side by side on the same plane (or the same layer).

[0236] In the piezoelectric vibration unit 1203 of the second vibration device 1200 according to another embodiment of the present specification, each of the plurality of first portions 1203a may have a planar structure in the form of a triangle instead of a planar structure in the form of a circle. For example, each of the plurality of first portions 1203a may have the form of a triangular plate.

[0237] According to the embodiments of this specification, four adjacent first portions 1203a among the plurality of first portions 1203a can be arranged adjacent to each other so as to form a square shape (or a regular square shape). Each vertex of the four adjacent first portions 1203a forming the square shape can be arranged adjacent to the central portion (or the exact center portion) of the square shape.

[0238] According to other embodiments of this specification, six adjacent first portions 1203a among the plurality of first portions 1203a can be arranged adjacent to each other so as to form a hexagonal shape (or a regular hexagonal shape). Each vertex of the six adjacent first portions 1203a forming the hexagonal shape can be arranged adjacent to the central portion (or the exact center portion) of the hexagonal shape.

[0239] The first support member 500 according to the embodiments of this specification can include a fifth hole 590 for the coupling of the vibration device 800. Since the frequency - amplitude characteristics are different depending on the number and position of the fifth holes 590 arranged in the first support member 500, a display device having desired frequency - amplitude characteristics can be implemented by changing the number and arrangement of the fifth holes 590.

[0240] FIG. 14A is a diagram showing a first support member according to another embodiment of the present specification. For example, FIG. 14A is a diagram showing a first support member in which a fifth hole is not formed. FIGS. 14B to 14E are diagrams showing various arrangements of the fifth holes formed in the first support member according to the embodiment of the present specification. FIG. 15 is a graph showing the frequency-amplitude characteristics measured for each of the display devices including FIGS. 14A to 14E. In FIG. 15, the horizontal axis represents frequency (Hz), and the vertical axis represents amplitude (m). In FIG. 15, the amplitude indicates the width of vibration for each frequency of the vibrating first support member when the display device is vibrated, and the amplitude can be regarded as the amount of energy consumed by the vibration of the first support member. Therefore, the smaller the amplitude, the less the amount of energy consumed by the vibration of the first support member, so the vibration energy transmitted to the display panel is large, and thereby the vibration efficiency of the display panel can be improved. The thin solid line in FIG. 15 shows a comparative example. The thick solid line is the first embodiment according to the present specification, and the dotted line shows the second embodiment according to the present specification. The one-dot chain line is the third embodiment according to the present specification, and the two-dot chain line shows the fourth embodiment according to the present specification. Referring to FIGS. 14A to 15, the fifth hole 590 formed in the first support member 500 is for coupling the first support member 500 and the vibration device 800. For example, a screw or a bolt can be fastened to the fifth hole 590 to couple or connect the first support member 500 and the vibration device 800.

[0241] Referring to FIGS. 14A to 15, the first support member 500a of the experimental example (FIG. 14A) does not include the fifth hole 590, and the first support members 500b, 500c, 500d, 500e of the first to fourth embodiments (FIGS. 14B to 14E) include the fifth holes 590b, 590c, 590d, 590e. At frequencies below about 1500 Hz, the amplitude of the first support member 500a measured in the display device including the first support member 500a of the experimental example (FIG. 14A) is greater than the amplitudes of the first support members 500b to 500e measured in the display devices including the first support members 500b to 500e according to the first to fourth embodiments (FIGS. 14B to 14E). It can also be seen that the amplitudes of the first support members 500b to 500e measured in the display devices including the first support members 500b to 500e according to the first to fourth embodiments (FIGS. 14B to 14E) are more stable than the amplitude of the first support member 500a measured in the display device including the first support member 500a of the experimental example (FIG. 14A).

[0242] According to the embodiments of the present specification, at frequencies below about 1500 Hz, the amplitudes of the first to fourth embodiments (FIGS. 14B to 14E) are smaller than the amplitude of the experimental example (FIG. 14A). Therefore, the amount of energy consumed by the vibration of the first support members 500b to 500e of the first to fourth embodiments (FIGS. 14B to 14E) is less than the amount of energy consumed by the vibration of the first support member 500a of the experimental example (FIG. 14A), so the acoustic characteristics in the mid-low frequency range can be improved. Also, the amount of change in the amplitude of the first to fourth embodiments (FIGS. 14B to 14E) at frequencies below about 1500 Hz is more stable than the amount of change in the amplitude of the experimental example (FIG. 14A), so an acoustic sound with a stable flatness can be generated. Therefore, when the first support member 500 and the vibration device 800 are coupled using the fifth hole 590 and the screw (or bolt), the vibration efficiency of the display panel can be improved and the acoustic flatness can be improved compared to the case where the first support member 500 and the vibration device 800 are not coupled.

[0243] Referring to FIGS. 14B and 14C, the first support members 500b and 500c of the first embodiment (FIG. 14B) and the second embodiment (FIG. 14C) include the same number of fifth holes 590b and 590c. The fifth hole 590b formed in the first support member 500b of the first embodiment (FIG. 14B) is denser around the center of the first support member 500b than the fifth hole 590b formed in the first support member 500c of the second embodiment (FIG. 14C). Referring to FIG. 15, it can be seen that the peak value of the amplitude of the first support member 500b measured in the display device including the first support member 500b according to the first embodiment (FIG. 14B) is smaller than the peak value of the amplitude of the first support member 500c measured in the display device including the first support member 500c according to the second embodiment (FIG. 14C). For example, at frequencies of about 1100 Hz to 1900 Hz, the amplitude of the first support member 500b according to the first embodiment (FIG. 14B) is smaller than the amplitude of the first support member 500c according to the second embodiment (FIG. 14C), so the vibration efficiency of the display device including the first support member 500b according to the first embodiment (FIG. 14B) is higher than the vibration efficiency of the display device including the first support member 500c according to the second embodiment (FIG. 14C).

[0244] Referring to FIGS. 14D and 14E, the first support members 500d and 500e of the third embodiment (FIG. 14D) and the fourth embodiment (FIG. 14E) include the same number of fifth holes 590d and 590e. The fifth holes 590d formed in the first support member 500d of the third embodiment (FIG. 14D) are denser around the center of the first support member 500d than the fifth holes 590e formed in the first support member 500e of the fourth embodiment (FIG. 14E). Referring to FIG. 15, it can be seen that the peak value of the amplitude of the first support member 500c measured in the display device including the first support member 500d according to the third embodiment (FIG. 14D) is smaller than the peak value of the amplitude of the first support member 500d measured in the display device including the first support member 500e according to the fourth embodiment (FIG. 14E). For example, at frequencies of about 1100 Hz to 2000 Hz, the amplitude of the first support member 500d according to the third embodiment (FIG. 14D) is smaller than the amplitude of the first support member 500e according to the fourth embodiment (FIG. 14E). Therefore, the vibration efficiency of the display device including the first support member 500d according to the third embodiment (FIG. 14D) is higher than the vibration efficiency of the display device including the first support member 500e according to the fourth embodiment (FIG. 14E).

[0245] Thus, even when the first support member 500 and the vibration device 800 are coupled using the same number of fifth holes 590 and screws (or bolts), coupling or connecting the first support member 500 and the vibration device 800 using the fifth holes 590 and screws (or bolts) in a region adjacent to the vibration device 800 can increase the coupling force between the first support member 500 and the vibration device 800 and reduce the amount of energy consumed by the first support member 500 compared to coupling the first support member 500 and the vibration device 800 using the fifth holes 590 and screws (or bolts) in a region relatively far from the vibration device 800. By doing so, the vibration efficiency of the display panel can be improved, and the acoustic flatness can be improved.

[0246] Referring to FIGS. 14B to 14E, the number of the fifth holes 590d and 590e formed in the first support members 500d and 500e of the third embodiment (FIG. 14D) and the fourth embodiment (FIG. 14E) is larger than the number of the fifth holes 590b and 590c formed in the first support members 500b and 500c of the first embodiment (FIG. 14B) and the second embodiment (FIG. 14C). Referring to FIG. 15, it can be seen that the peak values of the amplitudes of the first support members 500d and 500e measured in the display devices including the first support members 500d and 500e according to the third embodiment (FIG. 14D) and the fourth embodiment (FIG. 14E) are smaller than the peak values of the amplitudes of the first support members 500b and 500d measured in the display devices including the first support members 500b and 500c according to the first embodiment (FIG. 14B) and the second embodiment (FIG. 14C).

[0247] According to the embodiments of the present specification, since the amplitudes of the first support members 500d and 500e according to the third embodiment (FIG. 14D) and the fourth embodiment (FIG. 14E) are smaller than the amplitudes of the first support members 500b and 500c according to the first embodiment (FIG. 14B) and the second embodiment (FIG. 14C) at a frequency of about 1100 Hz to 2100 Hz, the vibration efficiency of the display device including the first support members 500d and 500e according to the third embodiment (FIG. 14D) and the fourth embodiment (FIG. 14E) is higher than the vibration efficiency of the display device including the first support members 500b and 500c according to the first embodiment (FIG. 14B) and the second embodiment (FIG. 14C).

[0248] Thus, when the first support member 500 and the vibration device 800 are coupled using a relatively large number of the fifth holes 590 and screws (or bolts), the coupling force between the first support member 500 and the vibration device 800 is increased and the amount of energy consumed by the first support member 500 is reduced compared to the case where the first support member 500 and the vibration device 800 are coupled using a relatively small number of the fifth holes 590 and screws (or bolts), so that the vibration efficiency of the display panel can be improved and the flatness of the sound can be improved.

[0249] FIG. 16 is a graph showing the sound pressure level characteristics of the display device according to the embodiment of the present specification. FIG. 17 is a graph showing the total harmonic distortion characteristics of the display device according to the embodiment of the present specification.

[0250] The horizontal axis in FIG. 16 indicates frequency (Hz), and the vertical axis indicates sound pressure level (dB). In FIG. 17, the horizontal axis indicates frequency (Hz), and the vertical axis indicates the ratio (%) of total harmonic distortion (THD).

[0251] In each of FIGS. 16 and 17, the solid line of the first embodiment is the result measured by the display device including a pair of vibration generators having an interval of 60 mm, and the dotted line of the second embodiment is the result measured by the display device including a pair of vibration generators having an interval of 17.8 mm.

[0252] According to the embodiment of the present specification, since the printed circuit board 330 of the drive circuit unit 300 is not disposed between the display panel 200 and the first support member 500, the arrangement of the vibration device 800 is not affected by the printed circuit board 330, and the degree of freedom in arranging the vibration device 800 can be improved. Therefore, as in the case of the first embodiment, the pair of vibration generators can have an interval of 60 mm, and as in the case of the second embodiment, the pair of vibration generators can have an interval of 17.8 mm.

[0253] Referring to FIG. 16, it can be seen that the sound output from the display device according to the embodiment of the present specification is output at a sound pressure level of 65 dB or more in the reproduction band of 100 Hz to 20 kHz, and for example, at a sound pressure level of 79 dB or more in the reproduction band of 200 Hz to 20 kHz. Therefore, the display device according to the embodiment of the present specification can output sound having a frequency band of 100 Hz to 20 kHz through the vibration of the display panel 200 even without a separate speaker. Also, it can be seen that the sound output from the display device according to the embodiment of the present specification has a stable sound flatness in the band of 1 kHz to 20 kHz. The sound flatness can be the magnitude of the deviation between the maximum sound pressure and the minimum sound pressure.

[0254] Referring to FIG. 17, the display device according to the embodiment of the present specification has a low total harmonic distortion rate of 20% or less in the reproduction band of 100 Hz to 10 kHz and does not have a section that rises sharply, so it can output high-quality sound.

[0255] FIG. 18 is a view showing the back of a display device according to another embodiment of the present specification. FIG. 19 is an exploded perspective view of the display device shown in FIG. 18. FIG. 20 is a cross-sectional view taken along line IV-IV' shown in FIG. 18. FIG. 21 is a cross-sectional view taken along line V-V' shown in FIG. 18. FIG. 22 is a front perspective view of the support frame shown in FIG. 19.

[0256] Referring to FIGS. 18 to 22, the display device according to another embodiment of the present specification is the display device shown in FIGS. 1 to 5, in which the support frame 400 and the first support member 500 are changed, and the second support member 600 and the fifth connecting member 1000 are changed to a ninth connecting member (or guide connecting member) 1300, and the support member 700 composed of the third - 1 support member 710 and the third - 2 support member 720 shown in FIG. 8B is applied to the third support member 700. The display device according to another embodiment of the present specification includes a smaller configuration than the display device according to the embodiment of the present specification and includes a simple configuration, so that the unit price of the product and the assembly / production time of the product can be reduced. In the following description, the duplicate description of the same remaining configurations except for the changed configurations and the related configurations will be briefly described or omitted.

[0257] In the display device according to another embodiment of the present specification, the support frame 400' can utilize the structure of the first support member 500', such as the area and shape, to reinforce the rigidity of the first support member 500', absorb unnecessary vibrations of the vibration device 800, and block the noise generated due to the coupling of the components.

[0258] In the display device according to another embodiment of the present specification, the support frame 400' can be disposed on the back surface of the display panel 200. For example, when the heat dissipation member 900 is disposed on the back surface of the display panel 200, the support frame 400' can be disposed on the back surface of the heat dissipation member 900. The support frame 400' can provide an air gap (AG) or a storage / accommodation space for the vibration device 800 between the back surface of the display panel 200 and the first support member 500'. For example, the support frame 400' can set the interval between the front member 100 and the first support member 500'.

[0259] According to the embodiments of this specification, the support frame 400' can be disposed on the back surface of the display panel 200 or the back surface of the heat dissipation member 900 through the seventh connecting member 400e. For example, the seventh connecting member 400e can include, but is not limited to, an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad. For example, the adhesive resin and / or the adhesive layer of the seventh connecting member 400e can include, but is not limited to, an acrylic-based or urethane-based adhesive substance.

[0260] According to the embodiments of this specification, the support frame 400' is disposed between the first support member 500' and the display panel 200, supported by the first support member 500', and can support the display panel 200. For example, a part of the support frame 400' is disposed on the back surface of the end of the first support member 500' and the vibration device 800, and can support the vibration device 800. For example, the support frame 400' can be a molded structure that can be manufactured by a molding method using a material such as plastic, but is not limited thereto.

[0261] The support frame 400' according to the embodiments of this specification can include a first surface 400a disposed on the first support member 500' and a second surface 400b vertically extended along the end of the first surface 400a. For example, the first surface 400a and the second surface 400b can be integrally formed, but are not limited thereto. For example, the first surface 400a can be a floor surface, but is not limited to this term. For example, the second surface 400b can be a side wall or a side surface, but is not limited to this term.

[0262] In this way, by arranging the support frame 400' so that it can support the vibration device 800, the vibration device 800 can be supported by the support frame 400' and the first support member 500'. Therefore, the support frame 400' can complement the rigidity of the first support member 500' that supports the vibration device 800, and can reinforce the rigidity of the back surface of the vibration device 800 more than when the vibration device 800 is supported only by the first support member 500'.

[0263] According to the embodiments of the present specification, the first surface 400a of the support frame 400' can be, but is not limited to, a flat shape. For example, the edge portion of the first surface 400a can be arranged along the edge portion of the display panel 200. The first surface 400a according to the embodiments of the present specification can include a support hole 400c (or hole) into which the vibration device 800 is inserted or accommodated. For example, the support hole 400c can be formed to have a size and shape such that a part of the back surface of the vibration device 800 can be inserted or accommodated. For example, the first surface (or peripheral portion) 400a around the support hole 400c can be arranged between the edge portion of the vibration device 800 and the first support member 500' to support the back surface of the edge portion of the vibration device 800. For example, the support hole 400c can be formed corresponding to the first hole 550 of the first support member 500.

[0264] According to the embodiments of the present specification, the second surface 400b of the support frame 400' can be arranged along the edge portion of the first surface 400a. For example, the second surface 400b can be arranged on the back surface of the display panel 200 or the back surface of the heat dissipation member 900 via the seventh connecting member 400e. For example, the second surface 400b can surround the vibration device 800 to provide an air gap (AG) or a storage or accommodation space for the vibration device 800 between the back surface of the display panel 200 and the first support member 500'.

[0265] FIGS. 23 to 25 are diagrams showing other examples of the support frame according to the embodiments of the present specification. FIGS. 23 to 25 are diagrams showing various arrangements of the reinforcing structure, and the arrangement of the reinforcing structure is not limited thereto.

[0266] Referring to FIGS. 23 to 25, the support frame 400' according to the embodiment of the present specification may further include a reinforcing structure 400d having various shapes so as to reinforce the rigidity of the support frame 400'. For example, the reinforcing structure 400d may be disposed between the back surface of the display panel 200 and the first surface 400a. For example, the reinforcing structure 400d may protrude from the first surface 400a toward the back surface side of the display panel 200, or may be disposed on the surface (or front surface) of the first surface 400a facing the back surface of the display panel 200.

[0267] According to the embodiment of the present specification, the thickness (or height) of the reinforcing structure 400d may be the same as the thickness (or height) of the second surface 400b. For example, the upper surface of the reinforcing structure 400d may be in contact with the back surface of the display panel 200. According to the embodiment of the present specification, the thickness of the reinforcing structure 400d may be different from the thickness of the second surface 400b. For example, the thickness of the reinforcing structure 400d may be thinner than the thickness of the second surface 400b.

[0268] The reinforcing structure 400d according to the embodiment of the present specification may include at least one or more reinforcing members. For example, the reinforcing member may be rod-shaped. For example, at least one or more reinforcing members may be arranged in various shapes.

[0269] Referring to FIG. 23, the reinforcing structure 400d may include a reinforcing member (or first reinforcing member) 400d_1 disposed on the first surface 400a. For example, the reinforcing member 400d_1 can connect two different second surfaces 400b to each other. For example, the reinforcing member 400d_1 is disposed on the first surface 400a so as to be adjacent to a corner formed on the first surface 400a (or a connection point between the second surfaces 400b), and can connect two different second surfaces 400b that form the corner (or connection point).

[0270] Referring to FIG. 24, the reinforcing structure 400d can include a first reinforcing member 400d_1 and a second reinforcing member 400d_2 disposed on the first surface 400a. For example, the first reinforcing member 400d_1 can connect two different second surfaces 400b to each other. For example, the second reinforcing member 400d_2 can connect the first reinforcing member 400d_1 and the second surface 400b.

[0271] Referring to FIG. 25, the reinforcing structure 400d can further include a third reinforcing member 400d_3 disposed on the first surface 400a. For example, the third reinforcing member 400d_3 can connect two different first reinforcing members 400d_1 to each other. For example, the reinforcing structure 400d can further include a fourth reinforcing member 400d_4 disposed on the first surface 400a. For example, the fourth reinforcing member 400d_4 can connect two different second reinforcing members 400d_2 to each other. For example, the reinforcing structure 400d can further include a fifth reinforcing member 400d_5 that connects the first reinforcing member 400d_1 and the second reinforcing member 400d_2 and is disposed on the first surface 400a.

[0272] FIG. 26 is a front perspective view of the first support member shown in FIG. 19.

[0273] Referring to FIGS. 18 to 21 and FIG. 26, the first support member 500'(or support member) according to another embodiment of the present specification can be disposed on the back surface of the front member 100. For example, the first support member 500' can be disposed on the back surface of the display panel 200. For example, the first support member 500' can be disposed on the back surface of the support frame 400'. For example, the first support member 500' can support or house (or accommodate) the vibration device 800. For example, the first support member 500' can surround the side surface of the display panel 200. For example, the first support member 500' can surround the side surface of the support frame 400'.

[0274] According to the embodiments of this specification, the first support member 500' can be disposed on the back surface of the front member 100 via the eighth connecting member 503. For example, the eighth connecting member 503 can include, but is not limited to, an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad. For example, the adhesive resin and / or the adhesive layer of the eighth connecting member 503 can include, but is not limited to, an acrylic-based or urethane-based adhesive substance.

[0275] Unlike the first support member 500 according to the embodiments of this specification, the first support member 500' according to other embodiments of this specification may not include a forming portion. A display device according to other embodiments of this specification can include a support frame 400' arranged to support the vibration device 800. Thereby, for the support of the vibration device 800, the rigidity of the first support member 500' can be reinforced, so that even if the first support member 500' does not include a forming portion, the vibration device 800 can be stably supported. In this way, since the first support member 500' does not include a forming portion, the thickness of the display device can be reduced.

[0276] The first support member 500' according to other embodiments of this specification can include, but is not limited to, a bottom plate 501 and a side portion 502. For example, the bottom plate 501 and the side portion 502 can be integrally formed, but are not limited thereto.

[0277] The bottom plate 501 of the first support member 500' according to other embodiments of this specification has a configuration corresponding to the first - 1 plate 510 of the first support member 500 according to the embodiments of this specification, and a detailed description thereof will be briefly described or omitted.

[0278] The bottom plate 501 of the first support member 500' is disposed on the back surface of the display panel 200 and can support the vibration device 800. For example, the bottom plate 501 may form the base of the first support member 500' and may be in a flat plate shape. For example, the bottom plate 501 can have the same shape as the front member 100. For example, the edge portion of the bottom plate 501 can be disposed along the edge portion of the front member 100. For example, the support frame 400' can be disposed on the bottom plate 501 of the first support member 500'.

[0279] The side portion 502 of the first support member 500' can be disposed along the edge portion of the bottom plate 501. For example, the side portion 502 can extend from the edge portion of the bottom plate 501 toward the front member 100 and can be disposed on the back surface of the front member 100. For example, the side portion 502 can be disposed along the edge portion on the back side of the front member 100. For example, the side portion 502 can be disposed on the back surface of the front member 100 via the eighth connecting member 503. For example, the side portion 502 can surround the side surface of the display panel 200. For example, the side portion 502 can surround the second surface 400b of the support frame 400'.

[0280] The first support member 500' according to another embodiment of the present specification can include a side portion 502 having a shape with one side open and can have a three-sided support structure that supports three of the four edge portions of the front member 100, namely, the upper, lower, left, and right edge portions. For example, the side portion 502 may not be disposed at the first edge portion (or one side edge portion) of the bottom plate 501. Here, the first edge portion of the bottom plate 501 can correspond to the first edge portion of the display panel 200.

[0281] In this way, since the side portion 502 of the first support member 500' includes an open area, the flexible circuit film 310 of the drive circuit unit 300 can be extended to the back surface of the first support member 500' through the open area, and the printed circuit board 330 connected to the flexible circuit film 310 can be disposed at the edge portion of the first back surface of the first support member 500'.

[0282] In the display device according to other embodiments of the present specification, the third support member (or the substrate connecting member) 700 may include a third - 1 support member 710 and a third - 2 support member 720. For example, the third - 1 support member 710 and the third - 2 support member 720 may be integrally formed, but are not limited thereto.

[0283] According to an embodiment of the present specification, the third - 1 support member 710 may be disposed between the bottom plate 501 of the first support member 500 and the printed circuit board 330. For example, when the flexible circuit film 310 is disposed on the back surface of the bottom plate 501, the third - 1 support member 710 may be disposed between the flexible circuit film 310 disposed on the back surface of the bottom plate 501 and the bottom plate 501.

[0284] According to an embodiment of the present specification, the third - 2 support member 720 may extend from the third - 1 support member 710 to the back side of the display panel 200. For example, the third - 2 support member 720 may extend along the side surface (or outer surface) exposed outside the second surface 400b of the support frame 400'. For example, the third - 2 support member 720 may be disposed between the second surface 400b of the support frame 400' and the flexible circuit film 310 extending along the outer surface of the second surface 400b through the open region between the second surface 400b of the support frame 400' and the side portion 502 of the first support member 500'.

[0285] In the display device according to other embodiments of the present specification, a support frame 400' may be disposed between the first support member 500' and the back surface of the vibration device 800. Thereby, the support device 1100 may be disposed between the support frame 400' and the back surface of the vibration device 800. For example, the support device 1100 may be disposed between the first surface 400a of the support frame 400' and the back surface of the vibration device 800.

[0286] The ninth connecting member 1300 according to another embodiment of the present specification may be disposed between the support frame 400' and the first support member 500'. For example, the ninth connecting member 1300 may be in a flat plate shape, but is not limited thereto. The ninth connecting member 1300 may include a receiving hole 1310 into which the vibration device 800 is inserted or received. For example, the receiving hole 1310 may be formed to have a size and shape such that a part of the back surface of the vibration device 800 can be inserted or received. For example, the receiving hole 1310 may be formed corresponding to the support hole 400c of the support frame 400'.

[0287] The display device according to another embodiment of the present specification may include a structure in which the first support member 500', the ninth connecting member 1300, and the support frame 400' are sequentially stacked. The stacked structure of the first support member 500', the ninth connecting member 1300, and the support frame 400' can prevent unnecessary vibration from being transmitted and can be realized by damping. For example, by changing the physical properties of the ninth connecting member 1300, transmission of unnecessary vibration to the display device can be prevented. For example, by changing the thickness of the ninth connecting member 1300, transmission of unnecessary vibration to the display device can be prevented. For example, by changing the contact area between the support frame 400' and the ninth connecting member 1300, transmission of unnecessary vibration to the display device can be prevented.

[0288] FIG. 27 is a graph showing the total harmonic distortion characteristics of the display device according to another embodiment of the present specification. In FIG. 27, the horizontal axis represents frequency (Hz), and the vertical axis represents the ratio (%) of total harmonic distortion (THD).

[0289] Referring to FIG. 27, the display device according to another embodiment of the present specification can have a low total harmonic distortion rate of 25% or less in the reproduction band of 100 Hz to 10 kHz. As a result, the sound pressure characteristics in the low frequency band can be improved, and there is no section where the sound pressure rises rapidly, so high-quality sound can be output.

[0290] Figures 28 and 29 are graphs showing the sound pressure level characteristics of a display device according to other embodiments of the present specification. In Figures 28 and 29, the horizontal axis represents frequency (Hz), and the vertical axis represents the sound pressure level (dB).

[0291] Figure 28 is a graph showing the sound pressure level characteristics due to the physical properties of the ninth connecting member 1300 of a display device according to other embodiments of the present specification.

[0292] In Figure 28, the solid line is the result measured in a display device including the ninth connecting member 1300 having physical property A, the dashed-dotted line is the result measured in a display device including the ninth connecting member 1300 having physical property B, and the dotted line is the result measured in a display device including the ninth connecting member 1300 having physical property C.

[0293] Referring to Figure 28, it can be seen that the sound pressure characteristics measured in display devices each including the ninth connecting member 1300 having different physical properties are different from each other.

[0294] Figure 29 is a graph showing the sound pressure level characteristics due to the thickness of the ninth connecting member 1300 of a display device according to other embodiments of the present specification.

[0295] In Figure 29, the solid line is the result measured in a display device including the ninth connecting member 1300 having physical property B and a thickness of 1.2 mm, the dashed-dotted line is the result measured in a display device including the ninth connecting member 1300 having physical property B and a thickness of 1.0 mm, and the dotted line is the result measured in a display device including the ninth connecting member 1300 having physical property B and a thickness of 0.5 mm.

[0296] Referring to Figure 29, it can be seen that the sound pressure characteristics measured in display devices each including the ninth connecting member 1300 having the same physical property but different thicknesses are different from each other.

[0297] Referring to FIGS. 28 and 29, it can be seen that the display device according to other embodiments of the present specification outputs sounds having different sound pressure level characteristics depending on the physical properties and thickness of the ninth connecting member 1300. Therefore, the damping effect can be adjusted by changing the physical properties and thickness of the ninth connecting member 1300.

[0298] FIG. 30 is a cross-sectional view taken along line II-II' shown in FIG. 2 of the display device according to other embodiments of the present specification.

[0299] The display device according to other embodiments of the present specification is obtained by adding a back cover 1400 to the display device according to the embodiments of the present specification. Accordingly, hereinafter, duplicate descriptions of the same configurations except for the back cover 1400 and related configurations thereof will be briefly described or omitted.

[0300] Referring to FIG. 30, other display devices according to other embodiments of the present specification may further include a back cover 1400.

[0301] The back cover 1400 can house or accommodate the display panel 200 in which the first vibration device 800 is disposed, the drive circuit unit 300, and the first support member 500. For example, the back cover 1400 can protect the first vibration device 800 with the first support member 500 exposed at the back and the drive circuit unit 300 disposed on the back of the first support member 500. For example, the back cover 1400 can include, but is not limited to, a first cover 1410 and a second cover 1420. For example, the first cover 1410 and the second cover 1420 can be integrally formed, but are not limited thereto.

[0302] The first cover 1410 of the back cover 1400 can be a configuration of the outermost back surface located on the back of the display device. For example, the first cover 1410 can support the first support member 500 and be disposed on the back of the first support member 500.

[0303] For example, the first cover 1410 can cover the back surface of the first support member 500. For example, it can cover the entire back surface of the first support member 500. For example, the first cover 1410 can cover the first vibration device 800 exposed on the back surface of the first support member 500. For example, the first cover 1410 can cover the back surface of the vibration device 800 exposed on the back surface of the first support member 500. For example, the first cover 1410 can cover the side surface of the first vibration device 800 exposed on the back surface of the first support member 500.

[0304] According to the embodiments of the present specification, the first cover 1410 can cover the exposed drive circuit portion 300. For example, the first cover 1410 can cover the printed circuit board 330 disposed on the back surface of the first support member 500. For example, the first cover 1410 can cover the flexible circuit film 310 disposed on the back surface of the first support member 500.

[0305] The second cover 1420 of the back cover 1400 can be disposed at the edge portion of the first cover 1410 as a configuration of the outermost side surface located on the side surface of the display device. For example, the second cover 1420 can be disposed along the edge portion of the first cover 1410.

[0306] According to the embodiments of the present specification, the second cover 1420 can cover the side surface of the first vibration device 800 exposed on the back surface of the first support member 500. For example, the second cover 1420 can cover the side surface of the first support member 500. For example, the second cover 1420 can cover the side surface of the support frame 400. For example, the second cover 1420 can cover the side surface of the front member 100.

[0307] FIG. 30 shows a structure in which the second cover 1420 covers the side surface of the front member 100, but is not limited thereto. For example, the second cover 1420 can be disposed adjacent to the support frame 400 on the back surface of the front member 100. The second cover 1420 can be disposed on the back surface of the front member 100 via an adhesive member including an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad.

[0308] The display device according to other embodiments of the present specification may further include a support structure 1500 disposed between the rear cover 1400 and the first support member 500.

[0309] According to an embodiment of the present specification, the support structure 1500 is disposed between the rear surface of the first support member 500 and the front surface of the rear cover 1400, and the first support member 500 can be supported by the rear cover 1400 via the support structure 1500. For example, the support structure 1500 maintains the interval between the first support member 500 and the rear cover 1400, so that the portion of the first vibration device 800 exposed on the rear surface of the first support member 500 is not contacted by the rear cover 1400, and the rear cover 1400 can be prevented from shaking due to the vibration of the first vibration device 800.

[0310] According to an embodiment of the present specification, the support structure 1500 can cover the side surface of the first vibration device 800 exposed on the rear surface of the first support member 500. For example, the support structure 1500 can cover a part of the side surface of the first vibration device 800 exposed on the rear surface of the first support member 500. For example, the support structure 1500 can cover the entire side surface of the first vibration device 800 exposed on the rear surface of the first support member 500.

[0311] According to an embodiment of the present specification, the support structure 1500 can include, but is not limited to, an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad. According to an embodiment of the present specification, the adhesive resin and the adhesive layer of the support structure 1500 can include, but are not limited to, an acrylic-based or urethane-based adhesive substance. For example, the adhesive resin and / or the adhesive layer of the support structure 1500 can include a urethane-based adhesive substance having relatively soft properties rather than an acrylic-based adhesive substance having relatively high hardness properties in order to prevent or minimize the transmission of the vibration of the first vibration device 800 to the rear cover 1400, but is not limited thereto.

[0312] FIG. 31 is a cross-sectional view taken along line V-V' shown in FIG. 18 of the display device according to another embodiment of the present specification.

[0313] Referring to FIG. 31, the display device according to another embodiment of the present specification is configured by additionally providing a back cover 1400' to the display device according to another embodiment of the present specification. Accordingly, hereinafter, duplicate descriptions of the same configurations except for the back cover 1400' and the configurations related thereto will be briefly described or omitted.

[0314] The display device according to another embodiment of the present specification may further include a back cover 1400'.

[0315] The back cover 1400' is disposed on the back surface of the first support member 500' and can cover the back surface of the first support member 500'. According to an embodiment of the present specification, the back cover 1400' can cover the entire area or a partial area of the first support member 500'. For example, the back cover 1400' can cover a portion of the first support member 500' that is exposed outside the first vibration device 800. For example, the back cover 1400' can cover the exposed drive circuit unit 300. For example, the back cover 1400' can cover the printed circuit board 330 disposed on the back surface of the first support member 500'. For example, the back cover 1400' can cover the flexible circuit film 310 exposed through the open area of the first support member 500'.

[0316] According to an embodiment of the present specification, the back cover 1400' can include, but is not limited to, a first cover 1410, a second cover 1420, and a third cover 1430. For example, the first cover 1410, the second cover 1420, and the third cover 1430 can be integrally formed, but are not limited thereto.

[0317] The first cover 1410 of the back cover 1400' can be disposed on the back surface of the first support member 500'. For example, the first cover 1410 can be in a flat plate shape, but is not limited thereto. For example, the first cover 1410 can cover the first vibration device 800 exposed on the back surface of the first support member 500'. For example, the first cover 1410 can cover the back surface of the first vibration device 800 exposed on the back surface of the first support member 500'.

[0318] According to an embodiment of the present specification, the first cover 1410 can cover the exposed drive circuit portion 300. For example, the first cover 1410 can cover the printed circuit board 330 disposed on the back surface of the first support member 500'. For example, the first cover 1410 can cover the flexible circuit film 310 disposed on the back surface of the first support member 500'.

[0319] The second cover 1420 of the back cover 1400' can be disposed at the edge portion of the first cover 1410. For example, the second cover 1420 is disposed at one edge portion of the first cover 1410 and can cover the open area of the first support member 500'.

[0320] According to an embodiment of the present specification, the second cover 1420 can cover the side surface of the display panel 200 and the side surface of the support frame 400' exposed through the open area of the first support member 500'. For example, the second cover 1420 can cover the flexible circuit film 310 disposed along the open area of the first support member 500'. For example, the second cover 1420 can cover the side surface of the first vibration device 800 exposed through the back surface of the first support member 500'. For example, the second cover 1420 can cover the side surface of the front member 100.

[0321] The third cover 1430 of the back cover 1400' can be disposed at the edge portion of the first cover 1410. For example, the third cover 1430 can be disposed at the edge portion on the other side facing the edge portion on one side of the first cover 1410. For example, the third cover 1430 can be disposed on the back surface of the first support member 500'.

[0322] According to the embodiments of the present specification, the third cover 1430 can cover the side surface of the first vibration device 800 exposed on the back surface of the first support member 500'. For example, the third cover 1430 can be disposed on the back surface of the first support member 500' via an adhesive member. For example, the adhesive member can include, but is not limited to, an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad. For example, the adhesive resin and / or the adhesive layer of the adhesive member can include, but is not limited to, an acrylic-based or urethane-based adhesive substance.

[0323] FIG. 31 shows a structure in which the second cover 1420 covers the side surface of the front member 100, but is not limited thereto. For example, the second cover 1420 can be disposed on the back surface of the front member 100. Here, the second cover 1420 can be disposed on the back surface of the front member 100 via an adhesive member including an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad, but is not limited thereto.

[0324] FIG. 31 shows a structure in which the third cover 1430 is disposed on the back surface of the first support member 500', but is not limited thereto. For example, the third cover 1430 can cover the side surface of the front member 100, such as the region on the left side of the second cover 1420 shown in FIG. 30. For example, the third cover 1430 can be disposed adjacent to the side portion 502 of the first support member 500' on the back surface of the front member 100. Here, the third cover 1430 can be disposed on the back surface of the front member 100 via an adhesive member including an adhesive resin, a double-sided tape having an adhesive layer, or a double-sided foam pad, but is not limited thereto.

[0325] The display device according to other embodiments of the present specification can further include a support structure 1500 disposed between the back cover 1400' and the first support member 500'.

[0326] According to the embodiments of this specification, the support structure 1500 is disposed between the back surface of the first support member 500' and the front surface of the back cover 1400'. The first support member 500' can be supported by the back cover 1400' via the support structure 1500. For example, the support structure 1500 can maintain the interval between the first support member 500' and the back cover 1400', so that the portion of the first vibration device 800 exposed on the back surface of the first support member 500' is not in contact with the back cover 1400'. Therefore, the vibration of the first vibration device 800 can prevent the back cover 1400' from shaking.

[0327] According to the embodiments of this specification, the support structure 1500 can cover the side surface of the first vibration device 800 exposed on the back surface of the first support member 500'. For example, the support structure 1500 can cover a part of the side surface of the first vibration device 800 exposed on the back surface of the first support member 500'. For example, the support structure 1500 can cover the entire side surface of the first vibration device 800 exposed on the back surface of the first support member 500'.

[0328] According to the embodiments of this specification, the support structure 1500 can include, but is not limited to, an adhesive resin, a double-sided tape with an adhesive layer, or a double-sided foam pad. According to the embodiments of this specification, the adhesive resin and the adhesive layer of the support structure 1500 can include, but are not limited to, acrylic-based or urethane-based adhesive substances. For example, the adhesive resin and / or the adhesive layer of the support structure 1500 can include a urethane-based adhesive substance having relatively soft properties rather than an acrylic-based adhesive substance having relatively high hardness characteristics in order to prevent or minimize the transmission of the vibration of the first vibration device 800 to the back cover 1400', but is not limited thereto.

[0329] The display device according to the embodiments of this specification described with reference to FIGS. 1 to 31 (or "described above") can be installed in a vehicle. For example, the display device according to the embodiments of this specification can be installed in a vehicle structure. For example, the vehicle structure can be a dashboard, an instrument panel device, a seat, a door, etc.

[0330] According to the embodiments of the present specification, the display device according to the embodiments of the present specification described with reference to FIGS. 1 to 29, when mounted on a vehicle, the entire display device can be inserted (or accommodated) inside the vehicle structure.

[0331] According to the embodiments of the present specification, the display device according to the embodiments of the present specification described with reference to FIG. 30, when mounted on a vehicle, the entire display device is inserted (or accommodated) inside the vehicle structure, or the A region of the rear cover 1400 in FIG. 30 can be inserted (or accommodated) inside the vehicle structure.

[0332] According to the embodiments of the present specification, the display device according to the embodiments of the present specification described with reference to FIG. 31, when mounted on a vehicle, the entire display device is inserted (or accommodated) inside the vehicle structure, or the B region of the rear cover 1400' in FIG. 31 can be inserted (or accommodated) inside the vehicle structure.

[0333] FIG. 32 is a view showing a vehicle according to the embodiments of the present specification, and the vehicle includes one or more of the display devices according to the embodiments of the present specification described with reference to at least one or more of FIGS. 1 to 31.

[0334] Referring to FIG. 32, the vehicle according to the embodiments of the present specification may include a dashboard (DB), an instrument panel device (IPM) (an example of a dashboard), and an infotainment device (ITM).

[0335] The dashboard (DB) may include a first region (DA) facing the driver's seat, a second region (PA) facing the passenger seat, and a third region (MA) between the first region (DA) and the second region (PA).

[0336] The instrument panel device (IPM) may include a first display (DIS1) disposed in the first region (DA) of the dashboard (DB).

[0337] The first display (DIS1) can provide the driver with various information such as operation-related information like speed, fuel level, and engine speed, as well as vehicle status information when the vehicle is in operation.

[0338] Since the first display (DIS1) includes the display device described with reference to at least one or more of the embodiments in FIGS. 1 to 31, duplicate descriptions thereof are omitted. Thus, the first display (DIS1) can display an image corresponding to the vehicle operation information provided from the vehicle host system on the display panel. Also, the first display (DS1) can output the sound generated by the vibration of the display panel linked to the vibration of the vibration device by the drive signal provided from the vehicle host system to the driver's seat side.

[0339] The infotainment device (ITM) (or infotainment system) can include a second display (DIS2) disposed in the third area (MA) of the dashboard (DB) (or center fascia).

[0340] The second display (DIS2) is connected to vehicle convenience systems such as an audio system, an air conditioning system, and a multimedia system, and a navigation system mounted inside the vehicle, and displays control icons for controlling the corresponding vehicle convenience systems and navigation information provided from the navigation system, and can provide the passengers in the vehicle with the sound corresponding to the audio signal provided from the audio system and / or the multimedia system.

[0341] Since the second display (DIS2) includes the display device described with reference to at least one or more of the embodiments in FIGS. 1 to 31, redundant descriptions thereof will be omitted. Accordingly, the second display (DIS2) can display control icons for controlling the vehicle convenience system and navigation information provided from the navigation system on the display panel. Also, the second display (DIS2) can directly output the sound generated from the display panel that vibrates due to the vibration of the vibration device by the acoustic signal from the audio system and / or the multimedia system. And the second display (DIS2) can recognize the touch of the user via the touch electrode layer disposed on the display panel and execute an interface with the user.

[0342] The second display (DIS2) can have a length extended toward the second area (PA) of the dashboard (DB). For example, the second display (DIS2) can be disposed across the third area (MA) and the second area (PA) of the dashboard (DB).

[0343] Therefore, the vehicle according to the embodiment of the present specification includes an instrument panel device (IPM) having a first display (DIS1) to which the display device according to the embodiment of the present specification described with reference to at least one or more of the embodiments in FIGS. 1 to 31 is applied, so that the sound generated by the vibration of the first display (DIS1) can be output toward the face of the driver and directly transmitted to the driver's ear, thereby transmitting a sound substantially close to the original sound to the driver.

[0344] In addition, the vehicle according to the embodiment of the present specification includes an infotainment device (ITM) having a second display (DIS2), where the display device according to the embodiment of the present specification described with reference to at least one or more of the embodiments in FIGS. 1 to 31, so that the sound generated by the vibration of the second display (DIS2) can be output to the ears of the driver and / or passengers of the vehicle, thereby providing a sound substantially close to the original sound to the driver and / or passengers of the vehicle.

[0345] In addition, the vehicle according to the embodiment of the present specification can use each of the first display (DIS1) of the instrument panel device (IPM) and the second display (DIS2) of the infotainment device (ITM) as a speaker for sound output, and transmit the sound to the driver and / or passengers of the vehicle through the sound generated by the vibration of each of the first and second displays (DIS1, DIS2). For example, the sound can include two-channel sound.

[0346] FIG. 33 is a diagram showing a vehicle according to another embodiment of the present specification, which is a modification of the structure of the infotainment device shown in FIG. 32. Accordingly, in the following description, the duplicate description of the same configuration except for the infotainment device and the related configurations will be simplified or omitted.

[0347] Referring to FIG. 33, the infotainment device (ITM) according to another embodiment of the present specification can be installed in the third area (MA) of the dashboard (DB) so as to be able to move up and down. The infotainment device (ITM) can be housed (or accommodated) inside the dashboard (DB) by turning off the vehicle power or by the operation of the vehicle passenger, and can protrude onto the dashboard (DB) by turning on the vehicle power or by the operation of the vehicle passenger.

[0348] The infotainment device (ITM) according to another embodiment of the present specification can include a second display (DIS2) and a display elevator.

[0349] The second display (DIS2) is substantially the same as the second display (DIS2) shown in FIG. 32, and thus redundant description thereof will be omitted.

[0350] The display elevator can be disposed inside the third area (MA) of the dashboard (DB) to support the second display (DIS2) in a liftable manner. 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 a vehicle occupant. Then, the display elevator can lower the second display (DIS2) to be housed (or accommodated) inside the dashboard (DB) when the vehicle power is turned off or by an operation of the vehicle occupant.

[0351] Therefore, the vehicle according to other embodiments of the present specification can have the same effects as the vehicle shown in FIG. 32.

[0352] FIG. 34 is a diagram showing a vehicle according to other embodiments of the present specification, which is a modification of the configuration of the infotainment device shown in FIG. 33. Accordingly, in the following description, redundant description of the same configuration except for the infotainment device and related configurations thereof will be simplified or omitted.

[0353] Referring to FIG. 34, the infotainment device (ITM) according to an embodiment of the present specification can include a second display (DIS2) provided in the third area (MA) of the dashboard (DB) to be liftable, a display elevator for raising and lowering the second display (DIS2), and a third display (DIS3) installed in the second area (PA) of the dashboard (DB).

[0354] Each of the second display (DIS2) and the display elevator is substantially the same as each of the second display and the display elevator shown in FIG. 33, and thus redundant description thereof will be omitted.

[0355] The third display (DIS3) can share the functions of the second display (DIS2).

[0356] According to the embodiments of this specification, the third display (DIS3) is connected to an audio system, an air conditioning system, and vehicle convenience systems such as a multimedia system installed inside the vehicle, and a navigation system, and displays control icons for controlling the corresponding vehicle convenience systems and navigation information provided by the navigation system, and can provide sound corresponding to an acoustic signal provided by the audio system and / or the multimedia system to the passenger in the front passenger seat of the vehicle. Further, the third display (DIS3) can transmit and receive video information or acoustic information via wireless communication with the wireless communication device of the front passenger, and can display the received video information on the display panel.

[0357] Since the third display (DIS3) includes the display device according to the embodiments of this specification described with reference to at least one or more of the embodiments in FIGS. 1 to 31, duplicate descriptions thereof are omitted.

[0358] The third display (DIS3) can have a length extended toward the third area (MA) of the dashboard (DB). For example, the third display (DIS3) can be arranged across the second area (PA) and the third area (MA) of the dashboard (DB).

[0359] Each of the first display (DIS1) of the instrument panel device (IPM) and the second and third displays (DIS2, DIS3) of the infotainment device (ITM) can be used as a speaker for acoustic output in the vehicle.

[0360] Therefore, the vehicle according to this specification and other embodiments can have the same effects as the vehicle shown in FIG. 32 or FIG. 33, and each of the first display (DIS1) of the instrument panel device (IPM) and the second and third displays (DIS2, DIS3) of the infotainment device (ITM) can be used as a speaker for acoustic output, and the sound can be transmitted 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). For example, the sound can include 3-channel sound.

[0361] FIG. 35 is a diagram showing a vehicle according to another embodiment of this specification, which is a modification of the configuration of the infotainment device shown in FIG. 32. Accordingly, in the following description, the redundant description of the same configurations except for the infotainment device and its related configurations will be simplified or omitted.

[0362] Referring to FIG. 35, the infotainment device (ITM) according to the embodiment of this specification can further include a fourth display (DIS4) disposed on the back of the driver's seat (or driver's seat cushion) (DS) and a fifth display (DIS5) disposed on the back of the passenger seat (or passenger seat cushion) (PS).

[0363] The fourth display (DIS4) can be disposed on or embedded in the headrest of the driver's seat (DS), and the fifth display (DIS5) can be disposed on or embedded in the headrest of the passenger seat (PS).

[0364] Since each of the fourth and fifth displays (DIS4, DIS5) includes the display device according to the embodiment of this specification described with reference to at least one or more of the embodiments in FIGS. 1 to 31, the redundant description thereof will be omitted.

[0365] Each of the fourth and fifth displays (DIS4, DIS5) can share the functions of the second display (DIS2). Also, each of 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.

[0366] Each of the first display (DIS1) of the instrument panel device (IPM) and the second, fourth, and fifth displays (DIS2, DIS4, DIS5) of the infotainment device (ITM) can be used as a speaker for acoustic output in the vehicle.

[0367] Therefore, the vehicle according to another embodiment of the present specification can have the same effects as the vehicle shown in FIG. 32, and each of the first display (DIS1) of the instrument panel device (IPM) and the second, fourth, and fifth displays (DIS2, DIS4, DIS5) of the infotainment device (ITM) can be used as a speaker for acoustic output, and four-channel stereo can be transmitted 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).

[0368] Furthermore, in the vehicle according to another embodiment of the present specification, the second display (DIS2) of the infotainment device (ITM) can be installed to be movable up and down in the third area (MA) of the dashboard (DB) as shown in FIG. 33. Also, the infotainment device (ITM) can further include the third display (DIS3) shown in FIG. 34. In this case, at least one or more of the first display (DIS1) of the instrument panel device (IPM) and the second to fifth displays (DIS2, DIS3, DIS4, DIS5) of the infotainment device (ITM) can be used as a speaker for acoustic output, and the sound generated by the vibration of the display panel included in at least one or more of the first to fifth displays (DIS1, DIS2, DIS3, DIS4, DIS5) can be transmitted to the driver and / or vehicle passengers.

[0369] The display device according to the embodiment of the present specification described with reference to FIGS. 1 to 31 (or "described above") may output sound (DVS) or generate haptic feedback (or haptic vibration) in response to a user touch. The display device according to the embodiment of the present specification can generate sound (DVS) and haptic feedback simultaneously.

[0370] The display device according to the embodiment of the present specification described above includes two coil-type vibration generators 810 and 830 and two film-type vibration generators 1210 and 1230, but the number of vibration generators included in the display device is not limited to this.

[0371] FIG. 36 is an exemplary diagram showing the arrangement of vibration generators in the display device according to the embodiment of the present specification.

[0372] Referring to FIG. 36, in the display device according to the embodiments of the present specification, the first vibration device 800 includes a first vibration generator 810 and a second vibration generator 830, and the second vibration device 1200 may include a third vibration generator 1210 and a fourth vibration generator 1230. According to the embodiments of the present specification, the first vibration generator 810 and the second vibration generator 830 are coil-type vibration generators, and the third vibration generator 1210 and the fourth vibration generator 1230 may be film-type vibration generators.

[0373] According to the embodiments of the present specification, the display device may include 2m (m is a natural number) coil-type vibration generators and 2n (n is a natural number) film-type vibration generators. For example, when m and n are the same, the number of coil-type vibration generators is the same as the number of film-type vibration generators. For example, when m and n are different, the number of coil-type vibration generators is different from the number of film-type vibration generators. In this case, the 2m coil-type vibration generators and the 2n film-type vibration generators may be arranged symmetrically about the center line (CL) of the respective display panel 200.

[0374] According to the embodiments of the present specification, with respect to the first direction (X) (or the horizontal direction) of the display panel 200, the display panel 200 may include a left region (LHP) and a right region (RHP) centered on the center line (CL). The display panel 200 may include an intermediate portion (CP) and an edge portion (EP). For example, the display panel 200 may be divided into an intermediate portion (CP) and two edge portions (EP1, EP2) parallel to each other with the intermediate portion (CP) in between.

[0375] The middle portion (CP) of the display panel 200 can be divided into a first middle portion (C1) and a second middle portion (C2). For example, the first middle portion (C1) can be the left portion (or left middle portion) of the middle portion (CP), and the second middle portion (C2) can be the right portion (or right middle portion) of the middle portion (CP). The first middle portion (C1) and the second middle portion (C2) can be symmetric about the center line (CL) of the display panel 200 with respect to the first direction (X) (or horizontal direction) of the display panel 200.

[0376] The edge portion (EP) of the display panel 200 can be divided into a first edge portion (EP1) and a second edge portion (EP2). For example, the first edge portion (EP1) can be the left portion (or left edge portion) of the edge portion (EP), and the second edge portion (EP2) can be the right portion (or right edge portion) of the edge portion (EP). The first edge portion (EP1) and the second edge portion (EP2) can be symmetric about the center line (CL) of the display panel 200 with respect to the first direction (X) (or horizontal direction) of the display panel 200.

[0377] According to the embodiments of the present specification, m first oscillators 810 (or first m oscillators or first mth oscillators) (or LEs) of 2m coil-type oscillators are arranged in the first middle portion (CP11) of the display panel 200, and the remaining m second oscillators 830 (or second m oscillators or second mth oscillators) (or REs) of the 2m coil-type oscillators can be arranged in the second middle portion (CP2) of the display panel 200. For example, n third oscillators 1210 (or first n oscillators or first nth oscillators) (or LPs) of 2n film-type oscillators are arranged in the first edge portion (EP1) of the display panel 200, and the remaining n fourth oscillators 1230 (or second n oscillators or second nth oscillators) (or RPs) of the 2n film-type oscillators can be arranged in the second edge portion (EP2).

[0378] The 2m coil-type vibration generators 810 and 830 and the 2n film-type vibration generators 1210 and 1230 can vibrate according to drive signals from the drive circuit unit 300, vibrate the display panel 200, generate sound (DVS), and also generate haptic feedback (or haptic vibration).

[0379] According to the embodiments of this specification, the drive circuit unit 300 can serve to transmit drive signals from the display host system to the vibration generators 810, 830, 1210, and 1230. For example, when the drive circuit unit 300 includes a vibration drive circuit 380, the vibration drive circuit 380 can control the vibration generators 810, 830, 1210, and 1230 in response to drive signals from the host system of the display.

[0380] Hereinafter, taking the case where the vibration drive circuit 380 controls the vibration generators 810, 830, 1210, and 1230 as an example for description, the control of the vibration generators 810, 830, 1210, and 1230 can be the display host system. For example, it can be other circuits (or modules) realized to control the vibration generators 810, 830, 1210, and 1230 according to drive signals from the display host system.

[0381] The vibration drive circuit 380 drives the first to fourth vibration generators 810, 830, 1210, and 1230 according to drive signals from the display host system, vibrates the display panel 200, generates one or more of sound (DVS) and haptic feedback, and can also generate sound (DVS) and haptic feedback simultaneously. For example, the vibration drive circuit 380 can be realized to drive so as to minimize the mutual interference between sound (DVS) and haptic feedback and maximize the drive efficiency of the vibration generators.

[0382] According to the embodiments of this specification, after analyzing the frequency of the drive signal from the display host system, the vibration drive circuit 380 can independently drive the first vibration device 800 and the second vibration device 1200 for each frequency band. For example, the vibration drive circuit 380 can independently drive the first vibration device 800 and the second vibration device 1200 based on the frequency band of the drive signal, the touch event generation information, and the touch coordinate information.

[0383] According to the embodiments of this specification, the vibration drive circuit 380 can independently drive the first vibration generator 810 and the second vibration generator 830 of the first vibration device 800. For example, the vibration drive circuit 380 can independently drive the third vibration generator 1210 and the fourth vibration generator 1230 of the second vibration device 1200.

[0384] According to the embodiments of this specification, the vibration drive circuit 380 can drive at least one or more of the first vibration device 800 and the second vibration device 1200 based on the frequency band of the drive signal, the touch event generation information, and the touch coordinate information. Thereby, the display panel 200 can generate sound, generate haptic feedback, or generate both sound and haptic feedback.

[0385] According to the embodiments of this specification, the vibration drive circuit 380 can drive the first vibration device 800 to cause the display panel 200 to generate sound in the first sound range band, drive the second vibration device 1200 to cause the display panel 200 to generate sound in the second sound range band, or drive the first vibration device 800 to cause the display panel 200 to generate haptic feedback in the third sound range band.

[0386] According to the embodiments of this specification, the first sound range may be a low sound range. For example, the sub - bass range may be 0 - 3 kHz, and is not necessarily limited thereto. For example, the second sound range may be a high sound range higher than the first sound range. For example, the high sound range may be 3 kHz or more, and is not necessarily limited thereto. For example, the third sound range may be a low sound range. For example, the low sound range may be less than 200 Hz, and is not necessarily limited thereto.

[0387] When the vibration driving circuit 380 vibrates the display panel 200 to generate sound, at least one or more of the first vibration device 800 and the second vibration device 1200 can be driven according to the frequency band of the driving signal to vibrate the display panel 200.

[0388] According to the embodiments of this specification, when the frequency of the driving signal is a frequency corresponding to the first sound range (the first frequency band), the vibration driving circuit 380 drives the first vibration device 800 to vibrate the display panel 200 so as to generate the sound (DVS) of the first sound range. For example, when the frequency of the driving signal is a frequency corresponding to the second sound range (the second frequency band), the vibration driving circuit 380 drives the second vibration device 1200 to vibrate the display panel 200 so as to generate the sound of the second sound range.

[0389] When a touch event occurs, the vibration driving circuit 380 can drive the first vibration device 800 to vibrate the display panel 200 so as to generate haptic feedback in the third sound range. For example, when generating haptic feedback, the vibration driving circuit 380 can vibrate the first vibration generator 810 disposed in the middle part (CP1) on the left side of the display panel 200 and the second vibration generator 830 disposed in the middle part (CP2) on the right side of the display panel 200 according to the touch coordinate information.

[0390] According to the embodiments of this specification, when the touch coordinates are coordinates within the left region (LHP) of the display panel 200, the vibration driving circuit 380 vibrates the first oscillator 810 disposed in the middle portion (CP1) on the left side of the display panel 200, and when the touch coordinates are coordinates within the right region (RHP) of the display panel 200, the second oscillator 830 disposed in the middle portion (CP1) on the right side of the display panel 200 can be vibrated. For example, when the touch coordinates are coordinates on the center line (CL), the vibration driving circuit 380 vibrates the first oscillator 810 disposed in the middle portion (CP1) on the left side of the display panel 200, and can also vibrate the second oscillator 830 disposed in the middle portion (CP1) on the right side of the display panel 200.

[0391] According to the embodiments of this specification, the vibration driving circuit 380 can generate both acoustic and haptic feedback by vibrating the second vibrating device 1200 to vibrate the display panel 200.

[0392] According to the embodiments of this specification, when the touch coordinates are coordinates within the left region (LHP) of the display panel 200, the vibration driving circuit 380 drives the first oscillator 810 disposed in the middle portion (CP1) on the left side of the display panel 200, causes the middle portion (CP1) on the left side of the display panel 200 to vibrate, generates haptic feedback in the third sound range band, drives the second oscillator 830 disposed in the middle portion (CP2) on the right side of the display panel 200, and causes the middle portion (CP2) on the right side of the display panel 200 to vibrate, thereby generating sound in the first sound range band.

[0393] According to the embodiments of this specification, when the touch coordinates are coordinates within the area (PHP) on the right side of the display panel 200, the vibration driving circuit 380 drives the second vibration generator 830 disposed in the middle portion (CP2) on the right side of the display panel 200, causing the middle portion (CP2) on the right side of the display panel 200 to vibrate, thereby generating haptic feedback in the third sound range band, and driving the first vibration generator 810 disposed in the middle portion (CP1) on the left side of the display panel 200, causing the middle portion (CP1) on the left side of the display panel 200 to vibrate, thereby generating sound (DVS) in the first sound range band.

[0394] According to the embodiments of this specification, in order to minimize or prevent a decrease in sound pressure performance, the vibration driving circuit 380 equalizes a signal having a frequency (first frequency band) corresponding to the first sound range band, and then drives the first vibration generator 810 disposed in the middle portion (CP1) on the left side of the display panel 200 with the equalized signal, causing the middle portion (CP1) on the left side of the display panel 200 to vibrate, thereby generating sound (DVS) in the first sound range band, and also driving the second vibration generator 830 disposed in the middle portion (CP2) on the right side of the display panel 200, causing the middle portion (CP2) on the right side of the display panel 200 to vibrate, thereby generating sound (DVS) in the first sound range band.

[0395] On the other hand, when the frequency (third frequency band) of the third sound range band is included in the frequency (first frequency band) of the first sound range band, when both sound and haptic feedback are generated, a decrease in sound pressure and a change in sound characteristics may occur. In order to prevent or minimize such a decrease in sound pressure and a change in sound characteristics, the vibration driving circuit 380 can generate sound in another sound range band (fourth sound range band) that does not correspond to the frequency of the third sound range band among the frequencies of the first sound range band. For example, when the first sound range band is 0 - 3 kHz and the third sound range band is less than 200 Hz, the vibration driving circuit 380 can generate sound having a frequency (fourth frequency band) of 200 Hz - 3 kHz.

[0396] According to the embodiments of this specification, when the generation of a touch event ends, the vibration driving circuit 380 can use the area of the display panel 200 that generates haptic feedback as an area that generates sound.

[0397] According to the embodiments of this specification, when coordinates within the left area (LHP) of the display panel 200 are touched, the vibration driving circuit 380 vibrates the middle portion (CP1) on the left side of the display panel 200 to generate haptic feedback in the third sound range band. However, when the generation of the touch event ends, the middle portion (CP1) on the left side of the display panel 200 can be vibrated to generate sound in the first sound range band or the fourth sound range band.

[0398] According to the embodiments of this specification, when coordinates within the right area (RHP) of the display panel 200 are touched, the vibration driving circuit 380 vibrates the middle portion (CP1) on the right side of the display panel 200 to generate haptic feedback in the third sound range band. However, when the generation of the touch event ends, the middle portion (CP1) on the right side of the display panel 200 can be vibrated to generate sound in the third sound range band or the fourth sound range band.

[0399] FIGS. 37A and 37B are flowcharts for explaining a driving algorithm for generating sound and haptic feedback in a display device according to the embodiments of this specification.

[0400] Referring to FIGS. 36 to 37B, the vibration driving circuit 380 can analyze the frequency of a driving signal from the display host system (S3700).

[0401] In step S3700, after analyzing the frequency, it is determined whether a signal in the second frequency band is included in the drive signal (S3710). If it is included (S3710-Yes), the vibration drive circuit 380 drives the second vibration device 1200 with the signal in the second frequency band of the drive signal so that the display panel 200 vibrates, and it is possible to generate sound in the second sound range band (S3720).

[0402] In step S3720, the vibration drive circuit 380 drives the third vibration generator 1210 so that the left edge portion (EP1) of the display panel 200 vibrates to generate left sound, and drives the fourth vibration generator 1230 so that the right edge portion (EP2) of the display panel 200 vibrates to generate right sound.

[0403] If a signal in the second frequency band is not included in the drive signal in step S3710 (S3710-No), or after generating the sound (DVS) in the second sound range band in step S3720, the vibration drive circuit 380 can determine whether a touch event has occurred (S3730).

[0404] In step S3730, the vibration drive circuit 380 can determine whether a touch event has occurred based on the touch event generation information from the display host system. For example, the vibration drive circuit 380 can determine whether a haptic feedback signal is included in the drive signal to determine whether a touch event has occurred.

[0405] If it is determined in step S3730 that no touch event has occurred (S3730-No), the vibration drive circuit 380 determines whether a signal in the first frequency band is included in the drive signal (S3740). If it is included (S3740-Yes), the first vibration device 800 is driven so that the display panel 200 vibrates, and it is possible to generate sound (DVS) in the first sound range band (S3750).

[0406] In step S3750, the vibration drive circuit 380 drives the first vibration generator 810 to vibrate the middle portion (CP1) on the left side of the display panel 200 to generate left-side sound, and drives the second vibration generator 830 to vibrate the middle portion (CP2) on the right side of the display panel 200 to generate right-side sound.

[0407] In step S3740, if the drive signal does not include a signal in the first frequency band (S3740-No), the vibration drive circuit 380 can terminate the control operation based on the currently received drive signal.

[0408] After controlling the first vibration device 800 in step S3750, the vibration drive circuit 380 can terminate the control operation based on the currently received drive signal.

[0409] In step S3730, when it is determined that a touch event has occurred (S3730-Yes), the vibration drive circuit 380 can determine the vibration generator to be driven for haptic feedback among the vibration generators included in the first vibration device 800 based on the touch coordinates (S3760). For example, the vibration drive circuit 380 can recognize the touch coordinates based on the haptic feedback signal included in the drive signal.

[0410] In step S3760, the vibration drive circuit 380 determines whether the touch coordinates are coordinates within the left region (LHP) of the display panel 200 or coordinates within the right region (RHP) of the display panel 200 based on the touch coordinate information from the display host system. If the touch coordinates are coordinates within the left region (LHP) of the display panel 200, it determines the vibration generator that drives the first vibration generator 810 arranged in the middle portion (CP1) on the left side of the display panel 200. If the touch coordinates are coordinates within the right region (RHP) of the display panel 200, it can determine the vibration generator that drives the second vibration generator 830 arranged in the middle portion (CP2) on the right side of the display panel 200.

[0411] After step S3760, the vibration driving circuit 380 determines whether the driving signal contains a signal in the first frequency band (S3770). If not (S3770-No), the vibration generator determined in step S3760 can be driven to vibrate the display panel 200, thereby generating haptic feedback in the third sound range band (S3780).

[0412] After driving the vibration generator in step S3780, the vibration driving circuit 380 can terminate the control operation based on the currently received driving signal.

[0413] If it is determined in step S3770 that the driving signal contains a signal in the first frequency band (S3770-Yes), the vibration driving circuit 380 drives the vibration generator determined in step S3760 to vibrate the display panel 200, thereby generating haptic feedback in the third sound range band, and drives the remaining vibration generators among the vibration generators included in the first vibration device 800 to vibrate the display panel 200, thereby generating sound in the first sound range band (DVS) (S3790).

[0414] In step S3790, if the first vibration generator 810 is determined as the vibration generator for generating haptic feedback in step S3760, the vibration driving circuit 380 drives the first vibration generator 810 to vibrate the middle part (CP1) on the left side of the display panel 200, thereby generating haptic feedback in the third sound range band, and drives the second vibration generator 830 to vibrate the middle part (CP2) on the right side of the display panel 200, thereby generating sound in the first sound range band (DVS).

[0415] In step S3790, when the second oscillator 830 is determined to be the oscillator for generating haptic feedback in step S3760, the vibration drive circuit 380 drives the second oscillator 830 so that the middle portion (CP2) on the right side of the display panel 200 vibrates, thereby generating haptic feedback in the third sound range band, and drives the first oscillator 810 so that the middle portion (CP1) on the left side of the display panel 200 vibrates, thereby generating the sound (DVS) in the first sound range band.

[0416] In step S3790, the vibration drive circuit 380 can drive the second oscillator 830 and also drive the first oscillator 810 with the equalized signal after equalizing the signal in the first frequency band included in the drive signal.

[0417] In step S3790, the vibration drive circuit 380 drives the second oscillator 830 with the signal obtained by removing the signal in the third frequency band from the signal in the first frequency band included in the drive signal, and also drives the first oscillator 810 so that the display panel 200 vibrates, thereby generating the sound (DVS) in the fourth sound range band.

[0418] After driving the oscillator in step S3790, the vibration drive circuit 380 can end the control operation based on the currently received drive signal.

[0419] According to the embodiment, the vibration drive circuit 380 can further perform the following steps.

[0420] After step S3790, the vibration drive circuit 380 determines whether the generation of the touch event has ended (S3800). If the generation of the touch event has not ended (S3800 - No), the operation in step S3790 can be performed.

[0421] In step S3800, when it is determined that the occurrence of the touch event has ended (S3800-Yes), the vibration drive circuit 380 drives the vibrator that generates haptic feedback in step S3790 to drive the vibrator to generate the sound in the first sound range band (DVS), and drives all the vibrators 810 and 830 included in the first vibration device 800, so that the display panel 200 vibrates, and the sound in the first sound range band (DVS) can be generated (S3810).

[0422] After driving the vibrator in step S3810, the vibration drive circuit 380 can end the control operation based on the currently received drive signal.

[0423] FIG. 38 is a graph showing the sound pressure level characteristics of the sound generated by the driving according to the driving algorithms of FIGS. 37A and 37B.

[0424] In FIG. 38, the dotted line is the sound pressure level characteristic before applying the driving algorithm, and the solid line is the sound pressure level characteristic after applying the driving algorithm. The sound pressure at point A is 90.89 dB, the sound pressure at point B is 85.93 dB, the sound pressure at point C is 77.04 dB, and the sound pressure at point D is 71.68 dB.

[0425] Referring to FIG. 38, it can be seen that when the driving algorithm according to the embodiment of the present specification is applied to drive the vibration device compared to before applying the driving algorithm according to the embodiment of the present specification, the display device generates sound with improved sound pressure characteristics. For example, it can be seen that when the driving algorithm is applied at a frequency of 300 Hz, the sound pressure is improved by about 5 dB or more compared to the case where the driving algorithm is not applied. For example, it can be seen that when the driving algorithm is applied at a frequency of 3 kHz, the sound pressure is improved by about 6 dB or more compared to the case where the driving algorithm is not applied. Therefore, according to the embodiment of the present specification, a display device with improved sound pressure characteristics in the bass sound range band can be provided.

[0426] As described above, by using the driving algorithm according to the embodiments of the present specification, the display device can simultaneously generate sound and haptic feedback, and can generate sound with improved sound pressure characteristics.

[0427] The vibration device according to the embodiments of the present specification can be applied to a vibration device disposed in a device or a display device. The display device according to the embodiments of the present specification includes 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, a variable apparatus, a sliding apparatus, an electronic device, an electronic notebook, an electronic book, a PMP (portable multimedia player), a PDA (personal digital assistant), an MP3 player, a mobile medical device, a desktop PC, a laptop PC, a netbook computer, a workstation, a navigation device, a vehicle navigation device, a vehicle display device, a theater device, a theater display 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, etc. and can be applied thereto. Further, the vibration device of the present specification can be applied to a light-emitting diode lighting device, an organic light-emitting lighting device, or an inorganic light-emitting lighting device. When the vibration device (or the device) is applied to a lighting device, it can serve as both lighting and a speaker. Also, when the vibration device (or the device) of the present specification is applied to a mobile device or the like, it can serve as one or more of a speaker, a receiver, and a haptic device, but is not limited thereto. The vibration device (or the device) of the present specification can be applied to a non-display device or a vibration object (or a vibration member), rather than a display device.For example, when the vibration device is not a display device but is applied to a non-display device or an object to be vibrated, it may be, but is not limited to, a vehicle speaker or a speaker realized together with lighting.

[0428] The display device and the vehicle including the same according to the embodiments of the present specification can be described as follows.

[0429] The display device according to the embodiments of the present specification includes a display panel configured to display an image, a flexible circuit film connected to the display panel, and a drive circuit unit including a printed circuit board connected to the flexible circuit film, a first support member disposed on the back surface of the display panel and including a hole, and a vibration device including a first vibration device supported by the first support member and disposed on the back surface of the display panel. The flexible circuit film is drawn out through the hole, and the printed circuit board may be disposed on the back surface of the first support member.

[0430] According to some embodiments of the present specification, the display device further includes a second support member disposed at an edge portion of the back surface of the first support member, and the printed circuit board may be disposed on the second support member.

[0431] According to some embodiments of the present specification, the display device further includes a front member disposed on the front surface of the display panel and a support frame disposed on the back surface of the front member and surrounding the side surface of the display panel. The first support member may be disposed on the back surface of the support frame.

[0432] According to some embodiments of the present specification, the support frame can include a plurality of connecting portions formed at regular intervals on one surface or a part thereof.

[0433] According to some embodiments of the present specification, the support frame includes an opening disposed at an edge portion of the back surface of the front member, and the opening of the support frame may be superimposed on the display panel or an opening in the central region of the display device.

[0434] According to some embodiments of the present specification, the support frame is configured to have a structure that supports the upper, lower, left, and right four edge portions of the front member, and the upper, lower, left, and right four edge portions can be supported by the support frame.

[0435] According to some embodiments of the present specification, the display device can further include a third support member disposed between the second support member and the printed circuit board.

[0436] According to some embodiments of the present specification, the first support member is disposed on the back surface of the display panel, and can include a first-1 plate that supports the first vibration device, a forming portion that extends from the first-1 plate in the outer direction of the first-1 plate, and a first-2 plate that extends from the forming portion in the outer direction of the first-1 plate.

[0437] According to some embodiments of the present specification, the first support member can further include a vibration device housing hole that opens to the first-1 plate.

[0438] According to some embodiments of the present specification, the first support member can further include a wiring hole or a wire hole through which a line or a wire formed and disposed on the first-1 plate passes.

[0439] According to some embodiments of the present specification, the first support member can further include a dummy hole in the first-1 plate.

[0440] According to some embodiments of the present specification, the first support member can further include a hole configured to couple or connect the first support member to the support portion with the first-1 plate.

[0441] According to some embodiments of the present specification, the forming portion can include a first sub-forming portion that extends in the outer direction of the first-1 plate toward the back surface of the display panel so as to have an inclined surface.

[0442] According to some embodiments of the present specification, the forming part can include a first sub-forming part extending in the outer direction of the first-1 plate toward the back surface of the display panel, a second sub-forming part extending in the outer direction of the first-1 plate horizontally with the display panel from the outside of the first sub-forming part, and a third sub-forming part extending in the outer direction of the first-1 plate from the outside of the second sub-forming part so as to have an inclined surface toward the back surface of the display panel.

[0443] According to some embodiments of the present specification, the forming part can include a first sub-forming part extending in the outer direction of the first-1 plate so as to have an inclined surface from the outside of the first-1 plate toward the back surface of the display panel, and a second sub-forming part extending in the outer direction of the first-1 plate from the first sub-forming part.

[0444] According to some embodiments of the present specification, the forming part can include a first sub-forming part extending from the first-1 plate in the outer direction or one side surface direction of the first-1 plate.

[0445] According to some embodiments of the present specification, the second support member can include a second-1 plate arranged horizontally with the display panel on the first surface of the first support member.

[0446] According to some embodiments of the present specification, the second support member can further include a second-2 plate extending from the second-1 plate and arranged on the back surface of the first support member.

[0447] According to some embodiments of the present specification, the second support member can further include a second-3 plate extending from the second-2 plate in the central direction of the first support member along the back surface of the first support member.

[0448] According to some embodiments of this specification, the display device further includes a third - 1 support member disposed on the back surface of the second - 1 plate, and the printed circuit board can be disposed on the third - 1 support member.

[0449] According to some embodiments of this specification, the display device further includes a third - 1 support member disposed on the back surface of the second - 1 plate, and a third - 2 support member extending along one side of the second - 2 plate from the third - 1 support member. The flexible circuit film can be drawn out through the hole and disposed on the third - 2 support member.

[0450] According to some embodiments of this specification, the display device can further include a third - 3 support portion disposed between the back surface of the first support member and the second - 2 plate.

[0451] According to some embodiments of this specification, the display device can further include a third - 1 support member disposed on the back surface of the second - 1 plate, a third - 2 support member extending along one side of the second - 2 plate from the third - 1 support member, and a third - 4 support member disposed between the back surface of the first support member and the second - 3 plate.

[0452] According to some embodiments of this specification, the display device can further include a heat - dissipating member disposed between the back surface of the display panel and the first vibration device.

[0453] According to some embodiments of this specification, the display device further includes a connecting member disposed between the display panel and the first support member. The connecting member is disposed between the first vibration device and the hole and can be disposed at the edge portion of the first support member.

[0454] According to some embodiments of this specification, the connecting member is disposed adjacent to the edge portion of the support frame, and each of both sides in the length direction of the connecting member can contact the edge portion of the support frame.

[0455] According to some embodiments of the present specification, the display device may further include a support device disposed between the first support member and the back surface of the first vibration device and configured to support the first vibration device.

[0456] According to some embodiments of the present specification, the support device may include a support portion that supports the first vibration device, a housing portion in which a part of the back surface of the vibration device is housed, and a connection portion that connects the first vibration device and the first support member.

[0457] According to some embodiments of the present specification, the connection portion may include a protrusion that protrudes from an edge portion of the support portion and has a hook shape.

[0458] According to some embodiments of the present specification, the support device may further include a connection hole provided by the support portion and the connection portion.

[0459] According to some embodiments of the present specification, the display device may further include a back cover disposed on the back surface of the first support member, and the back cover may include a first cover configured to cover the back surface of the first support member and a second cover disposed along an edge portion of the first cover and configured to cover a side surface of the display panel.

[0460] According to some embodiments of the present specification, the display device may further include a back cover disposed on the back surface of the first support member, and the back cover may include a first cover configured to cover the back surface of the first support member and a second cover disposed along an edge portion of the first cover and configured to cover a side surface of the support frame.

[0461] According to some embodiments of this specification, the display device may further include a back cover on the back surface of the first support member. The back cover may include a first cover configured to cover the back surface of the first support member, a second cover disposed along the edge portion of the first cover and configured to cover the side surface of the display panel, and a third cover disposed at the edge portion on the other side facing the edge portion on one side of the first cover and configured to cover the side surface of the vibration device exposed on the back surface of the first support member.

[0462] According to some embodiments of this specification, the first cover may be configured to cover the back surface of the first vibration device exposed on the back surface of the first support member and the printed circuit board disposed on the back surface of the first support member.

[0463] According to some embodiments of this specification, the first cover may be configured to cover the back surface of the first vibration device exposed on the back surface of the first support member and the printed circuit board disposed on the back surface of the first support member.

[0464] According to some embodiments of this specification, the display device may further include a support structure disposed between the first support member and the back cover.

[0465] According to some embodiments of this specification, the display device may further include a support structure disposed between the first support member and the back cover.

[0466] According to some embodiments of this specification, the vibration device may further include a second vibration device disposed on the back surface of the display panel and configured to vibrate the display panel.

[0467] According to some embodiments of this specification, the first vibration device may include at least one or more coil-type vibration generators, and the second vibration device may include at least one or more film-type vibration generators.

[0468] According to some embodiments of this specification, the first vibration device is disposed in the middle portion of the back surface of the display panel, the second vibration device is disposed in the edge portion of the back surface of the display panel, the first vibration device vibrates the middle portion of the back surface of the display panel to generate at least one of sound and haptic feedback, and the second vibration device can vibrate the edge portion of the back surface of the display panel to generate sound.

[0469] According to some embodiments of this specification, the first vibration device vibrates the middle portion of the back surface of the display to generate at least one of sound in the first sound range band and haptic feedback in the third sound range band, and the second vibration device can vibrate the edge portion of the back surface of the display to generate sound in the second sound range band.

[0470] According to some embodiments of this specification, the first vibration device includes 2m (m is a natural number) vibration generators. The first m vibration generators among the 2m vibration generators are disposed in one or more of the left middle portion and the right middle portion of the back surface of the display panel, and the second m vibration generators among the 2m vibration generators are disposed in the other middle portion of the back surface of the display panel. The first m vibration generators generate sound, and the second m vibration generators can generate haptic feedback simultaneously, or the first m vibration generators generate haptic feedback, and the second m vibration generators generate sound simultaneously.

[0471] According to some embodiments of this specification, the second vibration device includes 2n (n is a natural number) vibration generators. The first n vibration generators among the 2n vibration generators are disposed in the first edge portion of the display panel, and the second n vibration generators among the 2n vibration generators can be disposed in the second edge portion of the display panel.

[0472] According to some embodiments of the present specification, the drive circuit unit includes a vibration drive circuit. The vibration drive circuit can equalize a signal having a frequency in a first sound range band included in the provided drive signal, and then drive a first vibration device based on the equalized signal to generate sound.

[0473] According to some embodiments of the present specification, the third sound range band is included in the first sound range band. When the vibration drive circuit drives the first vibration device to simultaneously generate sound and haptic feedback, the vibration drive circuit can drive the first vibration device with a signal having a frequency in another sound range band in the frequencies of the first sound range band that does not correspond to the frequency of the third sound range band, so as to generate the sound of the fourth sound range band.

[0474] The display device according to the embodiments of the present specification includes a display panel configured to display an image, a flexible circuit film connected to the display panel, and a drive circuit unit configured to include a printed circuit board connected to the flexible circuit film, a support member disposed on the back surface of the display panel and including an open area, and a vibration device configured to include a first vibration device supported by the support member and disposed on the back surface of the display panel. The flexible circuit film extends through the open area, and the printed circuit board can be disposed on the back surface of the support member.

[0475] According to some embodiments of the present specification, the display device can further include a support frame disposed on the support member and configured to include a hole in which a part of the back surface of the first vibration device is received.

[0476] According to some embodiments of the present specification, the peripheral area of the hole can be disposed between the support member and the back surface of the vibration device.

[0477] According to some embodiments of the present specification, the display device can further include a guide connection member disposed between the support member and the support frame and configured to include a receiving hole formed corresponding to the hole.

[0478] According to some embodiments of the present specification, the display device further includes a front member disposed on the front surface of the display panel, and the support member is disposed on the back surface of the display panel and includes a bottom plate configured to support the vibration device, and a side portion disposed along the edge portion of the bottom plate and disposed on the back surface of the front member.

[0479] According to some embodiments of the present specification, the side portion may include an open area and may be configured to support three edge portions of the front member on the back surface of the front member.

[0480] According to some embodiments of the present specification, the support frame may be disposed on the support member and may include a first surface including holes, and a second surface disposed along the edge portion of the first surface and disposed on the back surface of the display panel.

[0481] According to some embodiments of the present specification, the remaining portion of the second surface except for the portion corresponding to the side where the open area of the support member is formed may be covered by the support member.

[0482] According to some embodiments of the present specification, the support frame may further include a reinforcing structure disposed on the first surface.

[0483] According to some embodiments of the present specification, the reinforcing structure may include a first reinforcing member configured to connect two different second surfaces, and a second reinforcing member configured to connect the first reinforcing member and the second surface.

[0484] According to some embodiments of the present specification, the reinforcing structure may further include at least one of a third reinforcing member, a fourth reinforcing member, and a fifth reinforcing member. The third reinforcing member is configured to connect two different first reinforcing members, the fourth reinforcing member is configured to connect two different second reinforcing members, and the third reinforcing member may be configured to connect the first reinforcing member and the second reinforcing member.

[0485] According to some embodiments of the present specification, the display device may further include a first connecting member disposed between the back surface of the support member and the printed circuit board.

[0486] According to some embodiments of the present specification, the display device may further include a second connecting member extending from the first connecting member and disposed along the open area of the support member.

[0487] According to some embodiments of the present specification, the display device may further include a heat dissipation member disposed between the back surface of the display panel and the first vibration device.

[0488] According to some embodiments of the present specification, the display device may further include a support device disposed between the support frame and the back surface of the first vibration device and configured to support the first vibration device.

[0489] According to some embodiments of the present specification, the display device may further include a back cover disposed on the back surface of the support member. The back cover includes a first cover configured to cover the back surface of the support member and a second cover disposed at an edge portion of the first cover and configured to cover the open area of the support member. The second cover may be configured to cover the side surface of the display panel exposed through the open area and the flexible circuit film disposed along the open area.

[0490] According to some embodiments of the present specification, the display device may further include a back cover disposed on the back surface of the support member. The back cover includes a first cover configured to cover the back surface of the support member and a second cover disposed at one edge portion of the first cover and configured to cover the open area of the support member. The side surface of the display panel exposed through the open area of the second cover may be the side surface of the support frame, and the second cover may be configured to cover the flexible circuit film disposed along the open area.

[0491] According to some embodiments of the present specification, the first cover may be configured to cover the back surface of the first vibration device exposed on the back surface of the support member and the printed circuit board disposed on the back surface of the support member.

[0492] According to some embodiments of the present specification, the first cover may be configured to cover the back surface of the first vibration device exposed on the back surface of the support member and the printed circuit board disposed on the back surface of the support member.

[0493] According to some embodiments of the present specification, the display device may further include a support structure disposed between the support member and the back cover.

[0494] According to some embodiments of the present specification, the display device may further include a support structure disposed between the support member and the back cover.

[0495] According to some embodiments of the present specification, the vibration device may further include a second vibration device disposed on the back surface of the display and configured to vibrate the display panel.

[0496] According to some embodiments of the present specification, the first vibration device may include at least one or more coil-type vibration generators, and the second vibration device may include at least one or more film-type vibration generators.

[0497] According to some embodiments of the present specification, the first vibration device is disposed in the middle portion of the back surface of the display panel, the second vibration device is disposed in the edge portion of the back surface of the display panel, the first vibration device vibrates the middle portion of the back surface of the display panel to generate at least one or more of acoustic and haptic feedback, and the second vibration device vibrates the edge portion of the back surface of the display panel to generate sound.

[0498] According to some embodiments of this specification, the first vibration device vibrates the middle part of the back of the display to generate at least one of the sound in the first sound range band and the haptic feedback in the third sound range band, and the second vibration device can vibrate the edge part of the back of the display to generate the sound in the second sound range band.

[0499] According to some embodiments of this specification, the first vibration device includes a 2m (m is a natural number) vibration generator. The first m vibration generator among the 2m vibration generators is arranged in one or more middle parts of the left middle part and the right middle part of the back of the display panel. The second m vibration generator among the 2m vibration generators is arranged in other middle parts of the back of the display panel. The first m vibration generator generates sound, and the second m vibration generator can generate haptic feedback simultaneously, or the first m vibration generator generates haptic feedback, and the second m vibration generator can generate sound simultaneously.

[0500] According to some embodiments of this specification, the second vibration device includes a 2n (n is a natural number) vibration generator. The first n vibration generator among the 2n vibration generators is arranged at the first edge part of the display panel, and the second n vibration generator among the 2n vibration generators can be arranged at the second edge part of the display panel.

[0501] According to some embodiments of this specification, the driving circuit part includes a vibration driving circuit. The vibration driving circuit can equalize a signal having a frequency in the first sound range band included in the provided driving signal, and then drive the first vibration device based on the equalized signal to generate sound.

[0502] According to some embodiments of this specification, the third sound range band is included in the first sound range band. When the vibration driving circuit drives the first vibration device to generate sound and haptic feedback simultaneously, the first vibration device is driven by a signal having a frequency in the first sound range band that does not correspond to the frequency of the third sound range band to generate the sound in the fourth sound range band.

[0503] An information entertainment device including at least one or more of a vehicle according to an embodiment of the present specification, a first area facing the driver's seat, a second area facing the passenger seat, and a dashboard including a third area between the first area and the second area, an instrument panel device (or dashboard device) including a first display disposed in the first area of the dashboard, a second display disposed in the third area of the dashboard, a third display disposed in the second area of the dashboard, a fourth display disposed on the back of the driver's seat, and a fifth display disposed on the back of the passenger seat, wherein one or more of the first to fifth displays include a display device, and the display device includes a display panel configured to display an image, a flexible circuit film connected to the display panel, and a drive circuit unit including a printed circuit board connected to the flexible circuit film, a first support member disposed on the back of the display panel and including a hole, and a vibration device configured to include a first vibration device disposed on the back of the display panel and supported by the first support member, the flexible circuit film is drawn out through the hole, and the printed circuit board may be disposed on the back of the first support member.

[0504] A vehicle according to an embodiment of the present specification, a dashboard including a first area facing the driver's seat, a second area facing the passenger seat, and a third area between the first area and the second area, an instrument panel device (or dashboard device) including a first display disposed in the first area of the dashboard, a second display disposed in the third area of the dashboard, a third display disposed in the second area of the dashboard, a fourth display disposed on the back of the driver's seat, and a fifth display disposed on the back of the passenger seat, and an infotainment device having at least one of the above, wherein one or more of the first to fifth displays include a display device, and the display device includes a display panel configured to display an image, a flexible circuit film connected to the display panel, and a drive circuit portion configured to include a printed circuit board connected to the flexible circuit film, a support member disposed on the back of the display panel and including an open area, and a vibration device configured to include a first vibration device supported by the support member and disposed on the back of the display panel, the flexible circuit film extends through the open area, and the printed circuit board may be disposed on the back of the support member.

[0505] According to some embodiments of the present specification, one or more of the first to fifth displays may be configured to output sound by vibration of the display panel caused by vibration of the vibration device.

[0506] The embodiments of this specification have been described in more detail with reference to the attached drawings above. However, this specification is not necessarily limited to such embodiments, and various modifications can be made without departing from the technical idea of this specification. Therefore, the embodiments disclosed in this specification are for the purpose of explanation rather than for limiting the technical idea of this specification, and the scope of the technical idea of this specification is not limited by such embodiments. Accordingly, it must be understood that the embodiments described above are illustrative and not restrictive in all respects. The protection scope of this specification must be interpreted according to the scope of the claims, and all technical ideas within the equivalent scope shall be construed as being included in the scope of rights of this specification.

Explanation of Reference Numerals

[0507] 100: Front member 200: Display panel 300: Drive circuit unit 400, 400’: Support frame 500, 500’: First support member (or support member) 600: Second support member 700: Third support member (substrate connection member) 800: Vibration device (first vibration device) 900: Heat dissipation member 1000: Fifth connection member 1100: Support device 1200: Second vibration device 1300: Ninth connection member (or guide connection member) 1400, 1400’: Rear cover 1500: Support structure

Claims

1. A display panel configured to display an image, a vibration device configured on the back side of the display panel to vibrate the display panel, a support frame configured to support the vibration device and the back surface of the display panel, a support member configured to support the support frame, and a connecting member disposed between the support member and the support frame, wherein a part of the support frame is configured at an edge of the back surfaces of the support member and the vibration device and is configured to support the vibration device, the display device.

2. The display device according to claim 1, wherein the support frame provides an accommodation space for the vibration device or provides an air gap between the back surface of the display panel and the support member.

3. Further including a damping structure, wherein the damping structure includes a structure in which the support member, the connecting member, and the support frame are sequentially stacked, the display device according to claim 1.

4. The support member includes a hole for accommodating a part of the back surface of the vibration device, the support frame includes a support hole for accommodating a part of the back surface of the vibration device, the connecting member includes an accommodation hole corresponding to the support hole of the support frame, and the vibration device is configured to pass through the hole, the accommodation hole, and the support hole and be connected to the back surface of the display panel, the display device according to claim 1.

5. The display device according to claim 1, wherein the connecting member has a flat shape.

6. The support frame includes a first surface configured to support the back surface of the vibration device, and a second surface configured at an edge of the first surface to support the back surface of the display panel, the display device according to claim 1.

7. The display device according to claim 6, wherein the first surface of the support frame has a flat shape, and the edge of the first surface of the support frame is disposed along the edge of the display panel.

8. The display device according to claim 6, wherein the second surface of the support frame is configured to surround the vibration device and provides an air gap between the back surface of the display panel and the support member.

9. The display device according to claim 6, wherein the support frame further includes a reinforcing structure.

10. The display device according to claim 9, wherein the reinforcing structure protrudes from the first surface of the support frame toward the back side of the display panel or is disposed on the surface of the first surface of the support frame facing the back of the display panel.

11. The display device according to claim 9, wherein the thickness of the reinforcing structure is the same as the thickness of the second surface of the support frame.

12. The display device according to claim 9, wherein the reinforcing structure is configured to contact the back surface of the display panel.

13. The display device according to claim 9, wherein the reinforcing structure is configured to be connected to two different second surfaces of the support frame that form a corner of the second surface of the support frame.

14. The reinforcing structure includes one or more first reinforcing members on the first surface of the support frame, and one or more second reinforcing members on the first surface of the support frame that are connected to each of the one or more first reinforcing members and are connected to the second surface of the support frame. The display device according to claim 9.

15. The reinforcing structure includes one or more third reinforcing members configured on the first surface of the support frame between the one or more first reinforcing members so as to be connected to the one or more first reinforcing members, one or more fourth reinforcing members configured on the first surface of the support frame so as to be connected between the one or more second reinforcing members, and further includes one or more fifth reinforcing members configured on the first surface of the support frame between the one or more second reinforcing members so as to be connected to each of the one or more first reinforcing members and the second surface of the support frame. The display device according to claim 14.

16. further includes a front member on the front surface of the display panel, and the support member is configured to be connected to an edge portion of the back surface of the front member so as to surround a side surface of the display panel and a side surface of the support frame. The display device according to claim 1.

17. further includes a flexible circuit film connected to the display panel and a driving circuit portion including a printed circuit board connected to the flexible circuit film, and the support member is configured to include an open area. The flexible circuit film extends through the open area, The printed circuit board is disposed on the back surface of the support member, and the display device according to claim 1.

18. The support member, A lower plate disposed on the back side of the display panel and configured to support the vibration device; The display device according to claim 17, further comprising a side portion disposed along an edge of the lower plate so as to include the open area.

19. Further comprising a front member on the front surface of the display panel, The side portion of the support member is configured to support three edges of the front member on the back surface of the front member, and the display device according to claim 18.

20. Further comprising a back cover disposed on the back surface of the support member, The back cover, A first cover configured to cover the back surface of the support member; A second cover disposed at an edge portion of the first cover and configured to cover the open area of the support member, The second cover is configured to cover a side surface of the display panel exposed through the open area and a flexible circuit film disposed along the open area, and the display device according to claim 17.

21. The first cover is configured to cover the back surface of the vibration device exposed on the back surface of the support member and the printed circuit board disposed on the back surface of the support member, and the display device according to claim 20.

22. The display device according to claim 20, further comprising a support structure disposed between the support member and the back cover.

23. The vibration device is disposed on the back side of the display panel and further includes a first vibration device and a second vibration device configured to vibrate the display panel, and the display device according to claim 1.

24. The first vibration device includes at least one or more coil-type vibration generators, The second vibration device includes at least one or more film-type vibration generators, The display device according to claim 23.

25. The first vibration device is disposed at an intermediate portion of the back surface of the display panel, and the second vibration device is disposed at an edge portion of the back surface of the display panel, The first vibration device vibrates the middle portion of the back surface of the display panel to generate at least one of acoustic and haptic feedback. The display device according to claim 23, wherein the second vibration device is configured to vibrate an edge portion of the back surface of the display panel to generate sound.

26. The first vibration device includes 2M (M is a natural number) vibration generators. The display device according to claim 25, wherein M of the 2M vibration generators are arranged on one of the left middle portion and the right middle portion of the back surface of the display panel, and the other M of the 2M vibration generators are arranged on the other of the left middle portion and the right middle portion of the back surface of the display panel.

27. The first vibration device vibrates the middle portion of the back surface of the display panel to generate at least one of acoustic in a first sound range band and haptic feedback in a third sound range band different from the acoustic in the first sound range band. The display device according to claim 25, wherein the second vibration device vibrates the edge portion of the back surface of the display panel to generate sound in a second sound range band higher than the first and third sound range bands.

28. The display device further includes a flexible circuit film connected to the display panel and a driving circuit unit including a printed circuit board connected to the flexible circuit film. The driving circuit unit includes a vibration driving circuit. The display device according to claim 27, wherein the vibration driving circuit equalizes a signal having a frequency in the first sound range band included in a provided driving signal, and then drives the first vibration device based on the equalized signal to generate the sound.

29. The third sound range band is included in the first sound range band. The display device according to claim 28, wherein when the vibration driving circuit drives the first vibration device to simultaneously generate the sound and the haptic feedback, the first vibration device is driven by a signal having a frequency in the remaining sound range band that does not correspond to the frequency in the third sound range band among the frequencies in the first sound range band to generate sound in a fourth sound range band.

30. A dashboard configured to include a first region facing the driver's seat, a second region facing the passenger seat, and a third region between the first region and the second region; An instrument panel device configured to include a first display disposed in the first region of the dashboard; An infotainment device having at least one or more of a second display disposed in the third region of the dashboard, a third display disposed in the second region of the dashboard, a fourth display disposed on the back of the driver's seat, and a fifth display disposed on the back of the passenger seat; A vehicle, wherein one or more of the first to fifth displays include the display device according to any one of claims 1 to 29.

31. The vehicle according to claim 30, wherein one or more of the first to fifth displays are configured to output sound by vibration of the display panel due to vibration of the vibration device.

Images