Sound generating device and display device

Abstract

Sound generating device and display device. A display device includes: a display panel configured to display an image; a support member on a rear surface of the display panel to support the display panel; at least one sound generating device on the rear surface of the display panel to vibrate the display panel to generate sound; and a connection portion connecting the support member to the at least one sound generating device. The at least one sound generating device includes: a plate spaced apart from the support member; a frame outside the plate; a magnet and a center pole on the plate; a bobbin near the center pole; and a coil outside the bobbin, with the connection portion between the support member and the frame.

Description

[0001] This application is a divisional application of a patent application with an application date of October 28, 2019, application number 201911030958.4, and invention name “Display Device”. Technical Field

[0002] The present disclosure relates to a display device, and more particularly to a display device configured to vibrate a display panel to generate sound. Background Art

[0003] Recently, with the progress of information society, the field of display devices for visually displaying electrical information signals has rapidly developed. Various display devices having excellent performances such as slimness, light weight, and low power consumption are being developed.

[0004] Examples of the display device may include a liquid crystal display (LCD) device, a field emission display (FED) device, an organic light emitting display device, a light emitting diode display device, a quantum dot light emitting display device, and a micro light emitting diode display device.

[0005] The LCD device may include an array substrate including a thin film transistor (TFT), an upper substrate including a color filter and / or a black matrix, and a liquid crystal layer between the array substrate and the upper substrate. The alignment state of the liquid crystal layer may be adjusted using an electric field generated between two electrodes in a pixel region, and the transmittance of light may be adjusted based on the alignment state, thereby displaying an image.

[0006] Organic light emitting display apparatuses, which are self-luminous devices, may have low power consumption, fast response time, high light emitting efficiency, excellent brightness, and a wide viewing angle.

[0007] The display device may include: a display panel that displays an image and a sound device that outputs sound together with the image. In the display device, the sound generated by the sound device may propagate toward the rear surface of the display panel or toward an area below the display panel, rather than toward the front surface of the display panel. Therefore, the sound quality may be reduced due to interference from the sound reflected from the wall or floor. Therefore, it may be difficult to provide clear sound from the sound device without hindering the user's immersive experience.

[0008] In addition, when installing a speaker in a set device such as a television (TV), a computer monitor, a notebook computer or a desktop personal computer (PC), the speaker occupies a certain space, thus limiting the design and spatial arrangement of the set device. Summary of the invention

[0009] Accordingly, the present disclosure is directed to a display device that substantially obviates one or more problems due to limitations and disadvantages of the related art.

[0010] Therefore, the inventors have recognized the above-mentioned problem and conducted various experiments so that when viewing an image in front of the display panel, the propagation direction of the sound becomes the direction toward the front surface of the display panel, thereby improving the sound quality. Through various experiments, the inventors have invented a display device with a new structure that can output sound so that the propagation direction of the sound becomes the direction toward the front surface of the display panel, thereby improving the sound quality.

[0011] An aspect of the present disclosure is to provide a display device including a sound generating device for generating sound that is propagated toward an area in front of a display panel and enhancing sound output characteristics of a low-pitched sound band.

[0012] Additional features and aspects will be described in the following description, and in part will be apparent from the description, or can be learned by practicing the inventive concepts provided herein. Other features and aspects of the inventive concepts can be realized and obtained by structures that are particularly pointed out in the written description, its claims, and the accompanying drawings, or can be derived therefrom.

[0013] In order to achieve these and other aspects of the inventive concept as embodied and broadly described, a display device is provided, comprising: a display panel configured to display an image; a support member on a rear surface of the display panel, the support member configured to support the display panel; at least one sound generating device on the rear surface of the display panel, the at least one sound generating device configured to vibrate the display panel to generate sound; and a connecting portion connecting the supporting member to the at least one sound generating device, wherein the at least one sound generating device comprises: a board; a frame outside the board and spaced apart from the supporting member; a magnet and a center pole on the board; a bobbin surrounding the center pole; and a coil outside the bobbin with the connecting portion between the supporting member and the frame.

[0014] On the other hand, a display device is provided, comprising: a display panel configured to display an image and comprising a first area, a second area, and a third area; at least one sound generating device in at least one of the first area, the second area, and the third area on a rear surface of the display panel; a supporting member on the rear surface of the display panel, the supporting member being spaced apart from the at least one sound generating device; and a connecting portion between the at least one sound generating device and the supporting member.

[0015] Other systems, methods, features and advantages will be or will become apparent to one skilled in the art upon examination of the following drawings and detailed description. All such additional systems, methods, features and advantages are intended to be included in this specification, within the scope of the present disclosure, and protected by the appended claims. Nothing in this section shall be construed as limiting these claims. Other aspects and advantages are discussed below in conjunction with embodiments of the present disclosure.

[0016] It is to be understood that both the foregoing general description and the following detailed description of the present disclosure are exemplary and explanatory and are intended to provide further explanation of the disclosure as claimed.

[0017] Note 1. A display device, comprising:

[0018] a display panel configured to display an image;

[0019] a supporting member on one side of a rear surface of the display panel and configured to support the display panel;

[0020] at least one sound generating device on the rear surface of the display panel, the at least one sound generating device being configured to vibrate the display panel to generate sound and being spaced apart from the supporting member; and

[0021] A connecting portion is configured to connect the supporting member to the at least one sound generating device.

[0022] Supplement 2. The display device according to Supplement 1, wherein the at least one sound generating device comprises:

[0023] plate;

[0024] a frame external to the panel and spaced apart from the support member;

[0025] a magnet and a center pole, said magnet and said center pole being on said plate;

[0026] a bobbin surrounding the center pole; and

[0027] A coil is provided outside the bobbin, wherein the connection is between the support member and the frame.

[0028] Supplement 3. The display device according to Supplement 2 further comprises a coupling member for coupling the connection portion to the support member,

[0029] Wherein, the connection portion is between the connecting member and the frame.

[0030] Supplementary note 4. The display device according to Supplementary note 3, wherein the coupling member includes a nut and a screw, and the connecting portion is between the screw and the frame.

[0031] Supplementary note 5. The display device according to Supplementary note 3, wherein the connection portion is between the coupling member and a lower portion of the frame.

[0032] Supplementary note 6. The display device according to Supplementary note 3, wherein the frame has a polygonal shape, and the connection portion is between the coupling member and each corner of the frame.

[0033] Note 7. The display device according to Note 3, wherein the connection portion further includes a portion disposed along a periphery of the frame and spaced apart from the frame.

[0034] Supplementary note 8. The display device according to Supplementary note 2, wherein the connection portion is on the same plane between the support member and the plate.

[0035] Supplementary note 9. The display device according to Supplementary note 1, wherein the connection portion is configured to provide elasticity to the plate based on vibration of the at least one sound generating device.

[0036] Supplement 10. The display device according to Supplement 2, wherein:

[0037] The at least one sound generating device further comprises a damper between the frame and the bobbin; and

[0038] The at least one sound generating device is configured to vibrate the display panel to generate sound using the plate, the magnet, the center pole, the bobbin, the coil, the frame, and the damper.

[0039] Supplement 11. The display device according to Supplement 1, wherein the at least one sound generating device includes one or more of a pair of sound generating devices, a circular sound generating device, and an oval sound generating device.

[0040] Note 12. A display device, comprising:

[0041] a display panel configured to display an image and comprising a first area, a second area, and a third area;

[0042] at least one sound generating device in at least one of the first area, the second area, and the third area at the rear surface of the display panel;

[0043] a supporting member on one side of the rear surface of the display panel, the supporting member being spaced apart from the at least one sound generating device; and

[0044] A connection portion is between the at least one sound generating device and the supporting member.

[0045] Note 13. The display device according to Note 12, wherein the at least one sound generating device comprises:

[0046] plate;

[0047] a frame external to the panel and spaced apart from the support member;

[0048] a magnet and a center pole, said magnet and said center pole being on said plate;

[0049] a bobbin surrounding the center pole; and

[0050] A coil is provided outside the bobbin.

[0051] Supplement 14. The display device according to Supplement 13, further comprising a coupling member for coupling the at least one sound generating device to the supporting member,

[0052] Wherein, the connection portion is between the connecting member and the frame.

[0053] Supplementary note 15. The display device according to Supplementary note 13, wherein the connection portion is on the same plane between the support member and the plate.

[0054] Supplementary note 16. The display device according to Supplementary note 13, wherein the connection portion is configured to provide elasticity to the plate based on vibration of the at least one sound generating device.

[0055] Note 17. The display device according to Note 12, further comprising:

[0056] a first spacer between the display panel and the supporting member, the first spacer comprising a first side portion and a second side portion perpendicular to the first side portion;

[0057] a second partition between the first region and the third region; and

[0058] A third partition is provided between the second region and the third region.

[0059] Note 18. The display device according to Note 17, further comprising:

[0060] at least one first spacer in the first region and on the first side; and

[0061] at least one second spacer on a side facing the at least one first spacer,

[0062] The at least one first spacer or the at least one second spacer comprises a material different from a material of the first separator.

[0063] Note 19. The display device according to Note 18, further comprising:

[0064] at least one third spacer or at least one fourth spacer, the at least one third spacer or the at least one fourth spacer being in the second area and on the second side,

[0065] Wherein, the at least one third spacer or the at least one fourth spacer comprises the same material as that of the at least one first spacer.

[0066] Note 20. The display device according to Note 18, further comprising:

[0067] at least one seventh spacer in the second region and on the first side; and

[0068] at least one eighth spacer on a side facing the at least one seventh spacer,

[0069] Wherein, the at least one seventh spacer block or the at least one eighth spacer block comprises the same material as that of the at least one first spacer block.

[0070] Note 21. The display device according to Note 18, further comprising:

[0071] at least one ninth spacer or at least one tenth spacer, the at least one ninth spacer or the at least one tenth spacer being in the second region and on the first side,

[0072] Wherein, the at least one ninth spacer or the at least one tenth spacer comprises the same material as that of the at least one first spacer.

[0073] Supplementary note 22. The display device according to Supplementary note 18, wherein one of the second spacer and the third spacer includes a material different from a material of the at least one first spacer.

[0074] Note 23. The display device according to Note 18, further comprising:

[0075] at least one fifth spacer or at least one sixth spacer, the at least one fifth spacer or the at least one sixth spacer being in the first region and on one side of the second partition,

[0076] Wherein, the at least one fifth spacer or the at least one sixth spacer comprises the same material as that of the at least one first spacer.

[0077] Note 24. The display device according to Note 18, further comprising:

[0078] at least one eleventh spacer or at least one twelfth spacer, the at least one eleventh spacer or the at least one twelfth spacer being in the second region and on one side of the third separator,

[0079] Wherein, the at least one eleventh cushion block or the at least one twelfth cushion block comprises the same material as that of the at least one first cushion block.

[0080] Note 25. The display device according to Note 18, further comprising:

[0081] at least one first member or at least one second member, the at least one first member or the at least one second member in the third region and on one side of the second partition,

[0082] The at least one first component or the at least one second component comprises the same material as the at least one first spacer.

[0083] Note 26. The display device according to Note 18, further comprising:

[0084] at least one third member or at least one fourth member, the at least one third member or the at least one fourth member in the third region and on one side of the third partition,

[0085] Wherein, the at least one third component or the at least one fourth component comprises the same material as the at least one first spacer.

[0086] Supplementary note 27. The display device according to Supplementary note 17, wherein one of the second spacer and the third spacer includes the same material as that of the first spacer.

[0087] Supplementary note 28. The display device according to Supplementary note 18, wherein a material of the at least one first spacer or the at least one second spacer and a material of the first spacer are the same material but have different adhesive forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0088] The accompanying drawings, which may be included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this application, illustrate embodiments of the present disclosure and together with the description serve to explain various principles of the present disclosure.

[0089] Figure 1A A display device including a sound generating device according to an embodiment of the present disclosure is shown.

[0090] Figure 1B It is along Figure 1A A cross-sectional view taken along line II' in FIG.

[0091] Figure 2A and Figure 2B is a cross-sectional view of a sound generating device according to an embodiment of the present disclosure.

[0092] Figure 3A and Figure 3B is a diagram for describing a sound generating operation performed by the sound generating device having the first structure according to an embodiment of the present disclosure.

[0093] Figure 4A and Figure 4B is a diagram for describing a sound generating operation performed by the sound generating device having the second structure according to an embodiment of the present disclosure.

[0094] Figure 5 A coupling structure of a supporting member and a sound generating device according to an embodiment of the present disclosure is shown.

[0095] Fig. 6A and Figure 6B A sound generating device according to another embodiment of the present disclosure is shown.

[0096] Figure 7 Sound output characteristics according to an embodiment of the present disclosure are shown.

[0097] FIG. 8A to FIG. 8C A sound generating device and a partition in a display device according to an embodiment of the present disclosure are shown.

[0098] Figures 9A to 9C A sound generating device and a partition in a display device according to another embodiment of the present disclosure are shown.

[0099] FIG. 10A to FIG. 10C A sound generating device and a partition in a display device according to another embodiment of the present disclosure are shown.

[0100] FIG. 11A to FIG. 11C A sound generating device and a partition in a display device according to another embodiment of the present disclosure are shown. DETAILED DESCRIPTION

[0101] Reference will now be made in detail to embodiments of the present disclosure, examples of which may be shown in the accompanying drawings. In the following description, a detailed description of a known function or configuration related to this document will be omitted when it is determined that it is unnecessary to obscure the main points of the inventive concept. The described process steps and / or operations are examples; however, the order of the steps and / or operations is not limited to the order set forth herein, but may be changed as known in the art, unless the steps and / or operations must occur in a particular order. The same reference numerals always represent the same elements. The names of the various elements used in the following explanations are selected only for the convenience of writing the specification and may therefore differ from the names used in the actual product.

[0102] The shapes, sizes, ratios, angles and quantities disclosed in the accompanying drawings for describing the embodiments of the present disclosure are examples only, and therefore, the present disclosure is not limited to the details shown. The same reference numerals always represent the same elements. In the following description, when it is determined that the detailed description of the relevant known functions or configurations is unnecessarily obscure the main points of the present disclosure, the detailed description thereof will be omitted. In the case of using the terms "including", "having" and "comprising" described in this specification, another component may be added unless "only" is used. Terms in the singular form may include plural forms unless there is a description to the contrary.

[0103] When interpreting an element, even if there is no explicit description about the error range, the element is interpreted as including the error range.

[0104] When describing a positional relationship, for example, when the positional relationship between two components is described as "on," "above," "below," or "next to," one or more other components may be disposed between the two components, unless terms such as "just" or "directly" are used.

[0105] When describing a time relationship, for example, when a time sequence is described as "after," "subsequently," "next," and "before," unless "just" or "directly" is used, discontinuous cases may be included.

[0106] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.

[0107] When describing the elements of the present disclosure, terms such as "first", "second", "A", "B", "(a)", and "(b)" may be used. These terms are only used to distinguish the corresponding elements from other elements, and the nature, order or priority of the corresponding elements are not limited by these terms. It should be understood that when an element or layer is referred to as being "on" or "connected to" another element or layer, it can be directly on or directly connected to another element or layer, or there can be intermediate elements or layers. Moreover, it should be understood that when an element is arranged above or below another element, it can indicate that these elements are arranged to be in direct contact with each other, but it can also indicate that these elements are arranged not to be in direct contact with each other.

[0108] The term "at least one" should be understood to include any and all combinations of one or more of the associated listed elements. For example, "at least one of a first element, a second element, and a third element" means a combination of all elements listed from two or more of the first element, the second element, and the third element, as well as the first element, the second element, or the third element.

[0109] As those skilled in the art will fully appreciate, the features of the various embodiments of the present disclosure may be partially or entirely connected or combined with each other, and may interact with each other and be technically driven in various ways. The embodiments of the present disclosure may be performed independently of each other, or may be performed together in a mutually dependent relationship.

[0110] When adding reference numerals to elements of each drawing, the same reference numerals may denote the same elements although the same elements are shown in other drawings.

[0111] In the present disclosure, examples of display devices may include narrow sense display devices, such as an organic light emitting diode (OLED) display module or a liquid crystal module (LCM) including a display panel and a driver for driving the display panel. In addition, examples of display devices may include complete devices (or complete equipment) or complete electronic devices, such as a notebook computer, a TV, a computer monitor, an equipment device including an automobile device or other types of vehicle devices, or a mobile electronic device such as a smart phone or an electronic tablet, which is a complete product (or final product) including an LCM or an OLED module.

[0112] Therefore, in the present disclosure, examples of the display device may include a display device in a narrow sense itself such as an LCM or an OLED module, and a complete device which is a final consumer device or an application product including the LCM or the OLED module.

[0113] In some embodiments, an LCM or OLED module including a display panel and a driver may be referred to as a narrow display device, and an electronic device as a final product including the LCM or OLED module may be referred to as a complete set of devices. For example, a narrow display device may include a display panel such as an LCD or an OLED, and a source printed circuit board (PCB) as a controller for driving the display panel. The complete set of devices may further include a complete set of PCBs, which is a complete set of controllers electrically connected to the source PCBs to control the complete set of devices as a whole.

[0114] The display panel applied to the present embodiment may use any type of display panel, including a liquid crystal display panel, an organic light emitting diode (OLED) display panel, and an electroluminescent display panel, but is not limited to a specific display panel. According to the present embodiment, the display panel is vibrated by the sound generating device according to the present embodiment to output the sound. In addition, the shape or size of the display panel applied to the display device according to the present embodiment is not limited.

[0115] In an example where the display panel is a liquid crystal display panel, the display panel may include a plurality of gate lines, a plurality of data lines, and a plurality of pixels respectively disposed in a plurality of pixel regions defined by intersections of the gate lines and the data lines. In addition, the display panel may include: an array substrate including a thin film transistor (TFT) as a switching element for adjusting the transmittance of each of the plurality of pixels; an upper substrate including a color filter and / or a black matrix; and a liquid crystal layer located between the array substrate and the upper substrate.

[0116] In an example where the display panel is an organic light-emitting display panel, the display panel may include a plurality of gate lines, a plurality of data lines, and a plurality of pixels respectively disposed in a plurality of pixel regions defined by intersections of the gate lines and the data lines. In addition, the display panel may include: an array substrate including a TFT as an element for selectively applying a voltage to each of the pixels; an organic light-emitting device layer disposed on the array substrate; and an encapsulation substrate disposed on the array substrate to cover the organic light-emitting device layer. The encapsulation substrate may protect the TFT and the organic light-emitting device layer from external impacts, and may prevent water or oxygen from penetrating into the organic light-emitting device layer. In addition, the layer disposed on the array substrate may include an inorganic light-emitting layer (e.g., a nano-sized material layer or a quantum dot, etc.). As another example, the layer disposed on the array substrate may include a micro light-emitting diode.

[0117] The display panel may further include a backing, such as a metal plate attached to the display panel. However, the present embodiment is not limited to the metal plate, and the display panel may include other structures.

[0118] In the present disclosure, a display panel may be applied to a vehicle as a user interface module (e.g., a central control panel for a car). For example, the display panel may be disposed between passengers sitting in two front seats to transmit vibrations of the display panel to the interior of the vehicle. Therefore, the sound experience in the vehicle may be improved compared to a case where a speaker is disposed inside the vehicle.

[0119] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0120] Figure 1A A display device including a sound generating device according to an embodiment of the present disclosure is shown.

[0121] Figure 1A 1 shows the rear surface of the display device 10. Figure 1A , the display device 10 may include a display panel 100 that may display an image and a sound generating device 200. The sound generating device 200 may be on the rear surface of the display panel 100, and may vibrate the display panel 100 to generate sound. For example, the sound generating device 200 may directly vibrate the display panel 100 to output sound in a direction toward the front surface of the display panel 100.

[0122] The display panel 100 may display an image (eg, an electronic image or a digital image), and may be implemented as any type of display panel, such as a liquid crystal display panel, an organic light emitting diode (OLED) display panel, an electroluminescent display panel, etc. The display panel 100 may vibrate based on the vibration of the sound generating device 200 to output sound.

[0123] According to an embodiment of the present disclosure, the display panel 100 can display an image according to a specific light emission type (e.g., a top emission type, a bottom emission type, or a dual emission type) based on the structure of a pixel array layer including an anode, a cathode, and an organic compound layer. In the top emission type, visible light emitted from the pixel array layer can be irradiated onto an area in front of a base substrate to allow image display. In the bottom emission type, visible light emitted from the pixel array layer can be irradiated onto a rearward area behind the base substrate to allow image display.

[0124] The sound generating device 200 may generate sound using the display panel 100 as a vibration plate. The sound generating device 200 may be referred to as an "actuator", "stimulator" or "transducer", but is not limited thereto. For example, the sound generating device 200 may be a sound device for outputting sound according to an electrical signal.

[0125] Figure 1B It is along Figure 1A A cross-sectional view taken along line II' in FIG.

[0126] Reference Figure 1B , the display device 10 may include a sound generating device 200 and a supporting member 300 .

[0127] The support member 300 may support one or more of the rear surface and the side surface of the display panel 100. In addition, the sound generating device 200 may be fixed to the support member 300.

[0128] The support member 300 may be, for example, a bottom cover. For example, the support member 300 may include an intermediate chassis, which may be coupled to the bottom cover to surround the side surface (or lateral surface) of the display panel 100, and may accommodate one edge or periphery of the display panel 100 to support the display panel 100. For example, the intermediate chassis may include a lateral "T" (┤)-shaped cross-section (or a T-shape with a 90-degree angle). The support member 300 may include a bottom cover, or may include a bottom cover and an intermediate chassis, but its structure is not limited thereto. For example, the support member 300 may include any structure that supports the rear surface and / or side surface of the display panel 100.

[0129] In addition, the support member 300 may be a plate member, which may be disposed on the rear surface of the display panel 100 or above the display panel 100 (e.g., above the entire display panel 100). For example, the support member 300 may cover the entire rear surface of the display panel 100 in a manner spaced apart from the rear surface of the display panel 100 by a predetermined air gap or distance. In addition, the support member 300 may have a plate shape formed of a glass material, a metal material, or a plastic material. Here, the edge or sharp corner of the support member 300 may have a quadrangular (e.g., quadrilateral) shape or a curved shape by a chamfering process or a rounded corner process. According to an embodiment of the present disclosure, the support member 300 including a glass material may include sapphire glass.

[0130] The support member 300 including a metal material may be formed of one or more of aluminum (Al), an aluminum alloy, a magnesium (Mg) alloy, and an iron (Fe)-nickel (Ni) alloy. As another example, the support member 300 may have a stacked structure including a glass plate and a metal plate, wherein the metal plate may have a thinner thickness than the glass plate, and the glass plate may face the rear surface of the display panel 100. Due to the metal plate included in the stacked structure, the rear surface of the display device 10 may be used as a mirror surface. However, the embodiment is not limited to the above-mentioned materials or shapes.

[0131] The support member 300 may include a through hole or other hole in which the sound generating device 200 may be inserted or accommodated. The through hole or other hole may be located at the center or outside the center of the region of the support member 300. For example, a through hole or other hole having a circular shape or a polygonal shape may be drilled in a certain local region of the support member 300 along the thickness direction of the support member 300 so that the sound generating device 200 is inserted or accommodated in the through hole.

[0132] In the present disclosure, the support member 300 may be referred to as a “bottom cover”, “bottom plate”, “back cover”, “base frame”, “metal frame”, “metal chassis”, “chassis seat” or “m-chassis”. The support member 300 may be a support member for supporting the display panel 100, and may be implemented as any type of frame or plate structure on the rear surface of the display device 10.

[0133] The adhesive member 400 may be in an edge or periphery of the display panel 100 and the support member 300. For example, the adhesive member 400 may be between the rear surface of the display panel 100 and the upper surface of the support member 300. The adhesive member 400 may attach the display panel 100 to the support member 300. The adhesive member 400 may include a double-sided tape, a single-sided tape, an adhesive and / or a bonding agent, etc., but is not limited thereto.

[0134] Figure 2A and Figure 2B is a cross-sectional view of a sound generating device according to an embodiment of the present disclosure.

[0135] The sound generating device can be divided into a first structure in which the magnet can be outside the coil and a second structure in which the magnet can be inside the coil. The first structure can be called a "dynamic type" or an "external magnetic type". And, the second structure can be called a "micro" or an "internal magnetic type".

[0136] Figure 2A A first structure is shown, and Figure 2B A second structure is shown.

[0137] Reference Figure 2A The sound generating device 200 may include a plurality of plates (eg, a first plate and a second plate) 210 and 210', a magnet 220 on the corresponding plate, a center pole 230 on the corresponding plate, a bobbin 250 surrounding the center pole 230, and a coil 260 wound around the bobbin 250.

[0138] For example, the magnet 220 may be on the first plate 210, and the second plate 210' may be on the magnet 220. The first plate 210 and the second plate 210' may support the magnet 220, and the sound generating device 200 may be fixed to the supporting member 300. The first plate 210 may be fixed to a supporting hole in the supporting member 300, and the magnet 220 may be fixed and supported between the first plate 210 and the second plate 210'.

[0139] At least one of the first plate 210 and the second plate 210' may include a material such as iron (Fe). Each of the first plate 210 and the second plate 210' may not be limited to the term "plate". For example, the first plate 210 or the second plate 210' may be referred to as a "yoke" or the like.

[0140] The magnet 220 may be implemented with a sintered magnet such as barium ferrite, and the material of the magnet 220 may use, for example, iron (III) oxide (Fe2O3) with an improved magnet component, barium carbonate (BaCO3; "baryte"), neodymium magnet, strontium ferrite (Fe 12 O 19 Sr) and / or Al, nickel (Ni) and cobalt (Co) alloy casting magnets, etc., but are not limited thereto. For example, the neodymium magnet may be neodymium-iron-boron (Nd-Fe-B). However, the embodiment is not limited thereto.

[0141] The frame 240 may be located on the second plate 210' along an edge or periphery of the first plate 210. The center pole 230 may be in a central region of the first plate 210. In addition, the center pole 230 and the first plate 210 may be provided as one body. In addition, the center pole 230 may be referred to as a "pole piece". For example, a pole piece may be further included on the center pole 230.

[0142] The bobbin 250 may surround the center pole 230. The coil 260 may be wound around a lower region (e.g., a lower outer surface) of the bobbin 250, and a current for generating sound may be applied to the coil 260. The bobbin 250 may be an annular structure that may include paper and / or an Al sheet, etc. The coil 260 may be wound around a specific lower region of the bobbin 250. The bobbin 250 and the coil 260 may be a "voice coil". The damper 270 may be between the frame 240 and a portion of the upper portion of the bobbin 250. The damper may be referred to as an "edge" or the like.

[0143] Figure 2B A second configuration is shown in which the magnet may be inside the coil.

[0144] Reference Figure 2BThe sound generating device 200 ′ having the second structure may include a magnet 220 on a first plate 210 , a center pole 230 on the magnet 220 , a bobbin 250 surrounding or around the magnet 220 and the center pole 230 , and a coil 260 wound around the bobbin 250 .

[0145] For example, the first plate 210 may be fixed to a support hole in the support member 300. The magnet 220 may be on the first plate 210, and the center pole 230 may be on the magnet 220. The center pole 230 may be referred to as a “pole piece”. For example, a pole piece may be further included on the center pole 230. The bobbin 250 may surround the magnet 220 and the center pole 230, and the coil 260 may be wound around the bobbin 250.

[0146] The second plate 210 ′ may be on the first plate 210 , and the frame 240 may be on the second plate 210 ′. For example, the damper 270 may be between the frame 240 and the bobbin 250 .

[0147] Compared to the first structure in which the magnet may be outside the coil, the second structure including the internal magnet may have small magnetic flux leakage and may reduce the overall size of the sound generating device. The sound generating device applied to the display device according to the embodiment of the present disclosure is not limited to Figure 2A The first structure shown in Figure 2B For example, the display device according to the embodiment of the present disclosure may include another sound generating device that can vibrate the display panel to generate sound.

[0148] Figure 3A and Figure 3B A sound generating operation performed by the sound generating device having the first structure according to an embodiment of the present disclosure is shown.

[0149] Figure 3A States where current may be applied are shown.

[0150] The center pole 230 connected to the lower surface of the magnet 220 may be a north-(N-) pole, and the second plate 210' connected to the upper surface of the magnet 220 may be a south-(S-) pole, thereby generating an external magnetic field around the coil 260. The north and south poles may be interchanged.

[0151] In this state, when a current for generating sound is applied to the coil 260, an applied magnetic field may be generated around the coil 260, and a force for moving the bobbin 250 upward may be generated by the applied magnetic field and the external magnetic field. For example, when a current is applied to the coil 260, a magnetic field may be generated around the coil 260. Thus, the bobbin 250 may be guided by the center pole 230 and may move upward according to the Fleming's left-hand rule of the motor based on the generated magnetic field and the external magnetic field generated by the magnet 220.

[0152] Thus, one surface of the bobbin 250 may be in contact with the rear surface of the display panel 100. Therefore, the bobbin 250 may vibrate the display panel 100 in an upward direction (indicated by an arrow) depending on whether current is applied to the coil 260, and may generate sound waves (or sounds) by the vibration of the display panel 100. In this state, when the application of current is stopped or a reverse current is applied, as shown in FIG. Figure 3B As shown, according to the above reference Figure 3A A similar principle as described above generates a force for moving the bobbin 250 toward the lower part, and the display panel 100 may vibrate in a downward direction (as indicated by an arrow).

[0153] The damper 270 may be between a portion of the upper portion of the bobbin 250 and the frame 240. The damper 270 may have a pleated structure, and may contract and relax based on the vertical movement of the bobbin 250 to control the vertical vibration of the bobbin 250. For example, the damper 270 may be connected to the bobbin 250 and the frame 240. Therefore, the vertical vibration of the bobbin 250 may be controlled by the restoring force of the damper 270. For example, when the bobbin 250 vibrates a certain height or more or vibrates a certain height or less, the bobbin 250 may be restored to the original position by the restoring force of the damper 270. Therefore, the display panel 100 may vibrate vertically based on the direction and level of the current applied to the coil 260, and may generate sound waves by vibration.

[0154] Figure 4A and Figure 4B A sound generating operation performed by the sound generating device having the second structure according to an embodiment of the present disclosure is shown.

[0155] Figure 4AThe state where the current may be applied is shown. The second plate 210' may be an S pole, and the center pole 230 connected to the upper surface of the magnet 220 may be an N pole, so that an external magnetic field can be generated around the coil 260. The S pole and the N pole can be switched with each other, and if the S pole and the N pole are switched with each other, the sound generating device can perform the same operation by correcting the winding direction of the coil 260. In this state, when the current for generating sound is applied to the coil 260, an applied magnetic field can be generated around the coil 260, and a force for moving the bobbin 250 to the upper part can be generated by the applied magnetic field and the external magnetic field. For example, when the current is applied to the coil 260, a magnetic field can be generated around the coil 260. Therefore, the bobbin 250 can be guided by the center pole 230 and can be moved to the upper part according to the Fleming's left-hand rule of the motor based on the generated magnetic field and the external magnetic field generated by the magnet 220.

[0156] Thus, one surface of the bobbin 250 may be in contact with the rear surface of the display panel 100. Therefore, the bobbin 250 may vibrate the display panel 100 in an upward direction (indicated by an arrow) depending on whether current is applied to the coil 260, and may generate sound waves (or sounds) by the vibration of the display panel 100. In this state, when the application of current is stopped or a reverse current is applied, as shown in FIG. Figure 4B As shown, according to the above reference Figure 4A A similar principle as described above generates a force for moving the bobbin 250 toward the lower part, and the display panel 100 may vibrate in a downward direction (as indicated by an arrow).

[0157] The damper 270 may be between the region of the upper portion of the bobbin 250 and the frame 240. The damper 270 may have a pleated structure and may contract and relax based on the vertical movement of the bobbin 250 to control the vertical vibration of the bobbin 250. For example, the damper 270 may be connected to the bobbin 250 and the frame 240. Therefore, the vertical vibration of the bobbin 250 may be controlled by the restoring force of the damper 270. For example, when the bobbin 250 vibrates a certain height or more or vibrates a certain height or less, the bobbin 250 may be restored to the original position by the restoring force of the damper 270. Therefore, the display panel 100 may vibrate vertically based on the direction and level of application of the current applied to the coil 260. And sound waves may be generated by vibration.

[0158] Figure 5 A coupling structure of a supporting member and a sound generating device according to an embodiment of the present disclosure is shown.

[0159] In the embodiments of the present disclosure, any one of the sound generating device having the first structure and the sound generating device having the second structure may be applied. In the following, the sound generating device having the second structure is taken as an example for description.

[0160] Reference Figure 5 , the sound generating device 200 may include an expanded diameter portion 614. The expanded diameter portion 614 may be provided integrally with the first plate 210 of the sound generating device 200. One side of the first plate 210 may include a protrusion having a larger diameter than other portions of the first plate 210. The protruding area having an expanded diameter may be referred to as the expanded diameter portion 614. The expanded diameter portion 614 may have an annular shape. In addition, the extension portion 612 for fixing the sound generating device 200 may be in a portion of the expanded diameter portion 614.

[0161] The screw 320 and the nut 330 may be in the extension 612. The sound generating device 200 may be coupled to the support member 300 by the screw 320 using the nut 330 fixed to the support member 300. The nut 330 may be, for example, a self-tightening nut. Examples of self-tightening nuts may include Therefore, the sound generating device 200 may be received in the supporting hole 310 in the supporting member 300 .

[0162] If a self-tightening nut is used, a portion of the vibration generated by the sound generating device 200 may be absorbed by the self-tightening nut, which may be the nut 330. Therefore, the vibration transmitted to the supporting member 300 may be reduced.

[0163] Reference Figure 5 , the structure according to the present embodiment may be structured as follows, wherein the first plate 210 of the sound generating device 200 is fixed to the supporting member 300, and the bobbin 250 may vibrate up and down (indicated by V1). Because the supporting member 300 of the sound generating device 200 may be fixed by the screw 320, it is possible to increase the rigidity of the first plate 210. Therefore, the inventors have recognized that the first plate 210 is fixed to the supporting member 300. Therefore, in Figure 5 In the illustrated embodiment, even when the resonance frequency of the sound generating device 200 is lowered, the low-pitched sound band of the sound output from the sound generating device 200 is not lowered. Therefore, through various experiments, the inventors have invented a sound generating device having a new structure that lowers the resonance frequency of the sound generating device and improves the low-pitched sound band. This will be described below with reference to Fig. 6A , Figure 6B and Figure 7 Describe it. Fig. 6A , Figure 6B and Figure 7 The described embodiments can reduce the resonance frequency of the sound generating device and improve the low-pitched sound frequency band.

[0164] Fig. 6A and Figure 6BA sound generating device according to another embodiment of the present disclosure is shown.

[0165] In the embodiment of the present disclosure, any one of the sound generating device having the first structure and the sound generating device having the second structure can be applied. In the following, the second structure will be taken as an example for description.

[0166] Fig. 6A is a cross-sectional view of a sound generating device 1300 according to another embodiment of the present disclosure. Figure 6B is a rear view of a sound generating device 1300 according to another embodiment of the present disclosure.

[0167] Reference Fig. 6A According to another embodiment of the present disclosure, a sound generating device 1300 may include a magnet 1220 on a plate 1210 , a center pole 1230 on the magnet 1220 , a bobbin 1250 near the magnet 1220 and the center pole 1230 , and a coil 1260 wound around the bobbin 1250 .

[0168] For example, the magnet 1220 may be on the plate 1210, and the center pole 1230 may be on the magnet 1220. The center pole 1230 may be referred to as a "magnetic sheet". Alternatively, a magnetic sheet may be further included on the center pole 1230. The bobbin 1250 may surround the magnet 1220 and the center pole 1230, and the coil 1260 may be wound around the bobbin 1250. The frame 1240 may be disposed outside the plate 1210. The damper 1270 may be between the frame 1240 and the bobbin 1250. The damper 1270 may be referred to as an "edge", but the term is not limited thereto. The plate 1210 may be referred to as a "yoke", but the term is not limited thereto.

[0169] The display panel 100 may be attached to the bobbin 1250 of the sound generating device 1300 using a first adhesive member. The first adhesive member may include a double-sided tape, a single-sided tape, an adhesive and / or a bonding agent, etc., but is not limited thereto.

[0170] The first adhesive member may be in a portion where the bobbin 1250 of the sound generating device 1300 is attached to the display panel 100, but is not limited thereto. For example, the first adhesive member may be on the entire rear surface of the display panel 100. Or for example, the first adhesive member may be on the entire surface between the display panel 100 and the sound generating device 1300.

[0171] The rear surface of the display panel 100 may further include a heat dissipation member for reducing the heat generated when the sound generating device 1300 vibrates. For example, the heat dissipation member may be located on the rear surface of the display panel 100 using a second adhesive member. For example, the heat dissipation member may be located between the first adhesive member and the rear surface of the display panel 100 using a second adhesive member. The heat dissipation member may be configured to cover the sound generating device 1300 or have a size larger than the sound generating device 1300, and may have a polygonal plate shape or a circular plate shape having a certain thickness, but is not limited thereto. For example, the heat dissipation member may be a heat sink or heat dissipation belt formed of a metal material with high thermal conductivity such as aluminum (Al), copper (Cu) or silver (Ag) and alloys thereof, but is not limited thereto. Therefore, since the heat dissipation member is provided, the influence of the heat generated when the sound generating device vibrates on the image quality of the display panel 100 can be reduced.

[0172] As mentioned above Figure 5 As described above, the support member is connected to the plate by screws. The inventors have recognized that in order to solve the problem of increased rigidity of the sound generating device, the plate should not be fixed to the support member. The inventors have conducted various experiments on methods of reducing rigidity without fixing the plate to the support member to fix the sound generating device to the support member. Through various experiments, the inventors have recognized that in order to reduce rigidity, the sound generating device can be fixed to the support member without fixing the plate to the support member by, for example, screws. For example, the plate can be spaced apart from the support member, and a structure can be provided between the support member and the sound generating device so that the sound generating device is fixed to the support member.

[0173] Reference Fig. 6A and Figure 6B , the support member 300 and the plate 1210 of the sound generating device 1300 may be spaced apart from each other, and the structure between the plate 1210 and the support member 300 may be, for example, a connection portion 1280. For example, the connection portion 1280 may be between the plate 1210 and the support member 300. For example, the connection portion 1280 may be on the same plane between the plate 1210 and the support member 300. The connection portion 1280 may include metal or plastic, but is not limited thereto. For example, the connection portion 1280 may provide elasticity to the plate 1210 based on the vibration of the sound generating device 1300. For example, the connection portion 1280 may provide elasticity to the plate 1210 to reduce stiffness, and may reduce the resonant frequency to improve the sound of the low-pitched sound band of the sound generating device 1300. This will be described below with reference to equation (1). The resonant frequency "fo" of the vibration generated by the sound generating device 1300 may be determined as in the following equation (1).

[0174] [Equation 1]

[0175]

[0176] Here, k represents the stiffness of the object, and m represents the mass of the object. For example, the sound generating device 1300 may reduce the stiffness "k" of the object or may increase the mass "m" of the object based on equation (1), thereby improving the sound in the low-pitched sound band. The connecting portion 1280 may reduce the stiffness of the sound generating device 1300 to reduce the resonant frequency, thereby improving the sound in the low-pitched sound band of the sound generating device 1300. As another example, the sound generating device 1300 may reduce the mass "m" of the object, and may reduce the stiffness "k" of the object more than the rate of increase of the mass "m", thereby reducing the resonant frequency.

[0177] The coupling member 1310 may be a lower portion of the support member 300 or below the support member 300. The coupling member 1310 may include a screw 1320 and a nut 1330. The nut 1330 may be, for example, a self-tightening nut. Examples of self-tightening nuts may include The nut 1330 may be fastened to the support member 300 in a press-fit type, but the present embodiment is not limited thereto. The sound generating device 1300 may be coupled to the support member 300 by the coupling member 1310 . The connection portion 1280 may be connected to the screw 1320 .

[0178] Reference Fig. 6A , the connection part 1280 may be between the coupling member 1310 and the frame 1240. For example, the connection part 1280 may extend from the outside of the lower portion of the frame 1240 to the screw 1320. Therefore, the connection part 1280 may stably support the plate 1210 surrounded by the frame 1240, and may provide elasticity to the plate 1210 to reduce the rigidity of the sound generating device 1300.

[0179] The frame 1240 may have a circular shape, a quadrangular (e.g., quadrilateral) shape, or a rounded quadrangular (e.g., quadrilateral) shape, but is not limited thereto. When the frame 1240 has a quadrangular (e.g., quadrilateral) shape or a rounded quadrangular (e.g., quadrilateral) shape, the lower portion of the frame 1240 may have a quadrangular (e.g., quadrilateral) shape having four corners or a rounded quadrangular (e.g., quadrilateral) shape, and the connection portion 1280 may be between the screw 1320 and each corner of the frame 1240. For example, the connection portion 1280 may be between the screw 1320 and each of the four corners of the frame 1240. The connection portion 1280 may be adjacent to (e.g., connected to) the frame 1240 along the shape of the frame 1240, and the connection portion 1280 adjacent to the frame 1240 may be provided between a plurality of screws 1320 and the frame 1240. For example, when the frame 1240 has a quadrangular (e.g., quadrilateral) shape or a rounded quadrangular (e.g., quadrilateral) shape, the connection portion 1280 may be adjacent to the frame 1240 along the quadrangular (e.g., quadrilateral) shape or the rounded quadrangular (e.g., quadrilateral) shape of the frame 1240. And the connection portion 1280 adjacent to the frame 1240 may be between the plurality of screws 1320 and each of the four corners of the frame 1240. The connection portion 1280 may be located outside the frame 1240 (e.g., spaced apart from the frame 1240) along the shape of the frame 1240, and the connection portion 1280 outside the frame 1240 may be provided between the screws 1320 outside the frame 1240. For example, when the frame 1240 has a quadrangular (e.g., quadrilateral) shape or a rounded quadrangular (e.g., quadrilateral) shape, the connection portion 1280 may be located outside the frame 1240 along the quadrangular (e.g., quadrilateral) shape or the rounded quadrangular (e.g., quadrilateral) shape of the frame 1240, and the connection portion 1280 disposed outside the frame 1240 may be between the screws 1320 corresponding to each of the four corners of the frame 1240. However, the present embodiment is not limited thereto, and the connection portion 1280 may be connected to a portion other than the corner of the frame 1240. For example, when the frame 1240 has a quadrangular (e.g., quadrilateral) shape or a rounded quadrangular (e.g., quadrilateral) shape, the connection portion 1280 may be between the frame 1240 and the coupling member 1310, and, for example, the connection portion 1280 may be disposed at the entire portion between the frame 1240 and the coupling member 1310. For example, when the frame 1240 has a circular shape, the connection portion 1280 may be between the frame 1240 and the coupling member 1310, and for example, the connection portion 1280 may be provided at the entire portion between the frame 1240 and the coupling member 1310. The connection portion 1280 between each of the four corners of the frame 1240 and the screw 1320 and the connection portion 1280 outside the frame 1240 may be provided as one body.For example, the connection portion 1280 provided between each of the four corners of the frame 1240 and the screw 1320 and the connection portion 1280 outside the frame 1240 may be constructed as one piece by a laser process. However, the present embodiment is not limited thereto, and the connection portion 1280 may be formed by a stamping process using laser, etching and / or molding. Therefore, since the connection portion 1280 is provided in plurality, the supporting force applied to the frame 1240 may be supplemented, and the plate 1210 surrounded by the frame 1240 may be stably supported, thereby providing elasticity to the plate 1210 to reduce the rigidity of the sound generating device 1300. In addition, the connection portion 1280 may provide elasticity to the plate 1210 based on the vibration of the sound generating device 1300.

[0180] Reference Fig. 6A , the partition 700 may be between the support member 300 and the display panel 100. The partition 700 may form an air gap or space that generates sound when the display panel 100 vibrates. The vibration of the sound generating device 1300 may cause the entire portion of the sound generating device 1300 to vibrate. Figure 5 By comparison, the sound output characteristics of the sound generating device 1300 can be further enhanced. For example, using the plate 1210, the magnet 1220, the center pole 1230, the frame 1240, the bobbin 1250, the coil 1260, and the damper 1270, the sound generating device 1300 can vibrate the display panel 100 to output sound, and thus can further enhance its sound output characteristics, thereby providing a display device having enhanced sound output characteristics in the low-pitched sound band.

[0181] Figure 7 Sound output characteristics according to an embodiment of the present disclosure are shown.

[0182] exist Figure 7 The dotted line indicates Figure 5 6, and the solid line represents the sound output characteristics of the sound generating device of FIG6. In addition, the horizontal axis (x-axis) represents the frequency in Hertz (Hz), and the vertical axis (y-axis) represents the sound pressure level (SPL) in decibels (dB).

[0183] Reference Figure 7, in the sound generating device according to the embodiment of the present disclosure, it can be seen that the sound pressure level is enhanced in the region of 200 Hz or lower corresponding to the low-pitched sound band compared to the dotted line. For example, the sound pressure level shown by the dotted line is 60 dB at a frequency of 100 Hz, while the sound pressure level of the sound generating device according to the embodiment of the present disclosure is 75 dB. Therefore, it can be seen that the sound pressure level is enhanced by about 15 dB. Therefore, in the sound generating device according to the embodiment of the present disclosure, it can be seen that the sound pressure level of the low-pitched sound band is enhanced. In addition, in the sound generating device according to the embodiment of the present disclosure, it can be seen that the sound pressure level is enhanced in the region of 200 Hz to 3 kHz or lower corresponding to the middle-pitched sound band. Here, the middle-pitched sound band may be 200 Hz to 3 kHz, the high-pitched sound band may be 3 kHz or higher, and the low-pitched sound band may be 200 Hz or lower. However, the present embodiment is not limited thereto.

[0184] FIG. 8A to FIG. 8C A sound generating device and a partition in a display device according to an embodiment of the present disclosure are shown.

[0185] Reference FIG. 8A to FIG. 8C , the display panel 100 may include a first area L, a second area R, and a third area C. The first area L may be a left area of ​​the rear surface of the display panel 100, the second area R may be a right area of ​​the rear surface of the display panel 100, and the third area C may be a central area of ​​the rear surface of the display panel 100. The left area and the right area may be symmetrical. For convenience, the following description will be made with reference to the drawings. At least one sound generating device may be in at least one of the first area L, the second area R, and the third area C. For example, the first sound generating device 1300 may be in the first area L of the rear surface of the display panel 100, and the second sound generating device 1300' may be in the second area R of the rear surface of the display panel 100. The at least one sound generating device may include one or more of a circular sound generating device, an oval sound generating device, and a pair of sound generating devices. The at least one sound generating device may vibrate the display panel 100 to generate sound. For example, the at least one sound generating device may directly vibrate the display panel 100 to generate sound. Furthermore, for example, the sound producing device may produce a sound of a low-pitched voice band, a sound of a middle-pitched voice band, and a sound of a high-pitched voice band, and may output a stereo sound.

[0186] Reference Fig. 8A, the first sound generating device 1300 and the second sound generating device 1300' may be respectively in the first area L and the second area R of the display panel 100. The first sound generating device 1300 may be in the first area L of the rear surface of the display panel 100, and the second sound generating device 1300' may be in the second area R of the rear surface of the display panel 100. As described above with reference to Fig. 6A and Figure 6B As described above, the first sound generating device 1300 and the second sound generating device 1300 ′ may be coupled to the supporting member 300 .

[0187] Therefore, the first sound generating device 1300 may be in the first area L which is the left area of ​​the rear surface of the display panel 100, and may vibrate the first area L of the display panel 100, and the second sound generating device 1300' may be in the second area R which is the right area of ​​the rear surface of the display panel 100, and may vibrate the second area R of the display panel 100. The first sound generating device 1300 and the second sound generating device 1300' may receive different vibration signals and may be driven independently. For example, the first sound generating device 1300 may use the first area L of the display panel 100 as a vibration plate to generate sound, and the second sound generating device 1300' may use the second area R of the display panel 100 as a vibration plate to generate sound. For example, the first sound generating device 1300 and the second sound generating device 1300' may directly vibrate the display panel 100 to generate sound. Such a description may be similarly applied to FIG. 8B to FIG. 11C .

[0188] exist Fig. 8A In the embodiment, the first sound generating device 1300 and the second sound generating device 1300' can be configured as a circular sound generating device. The circular sound generating device is as described above with reference to Fig. 6A and Figure 6B Therefore, the detailed description is omitted.

[0189] exist Figure 8B In the embodiment, the first sound generating device 1900 and the second sound generating device 1900' may be configured as an oval sound generating device. Fig. 6A and Figure 6B The described sound generating device can be applied to an oval sound generating device, and the bobbin can be configured to be oval. When the oval sound generating device is applied, the sound output characteristics of the middle and high pitch sound bands can be further enhanced. Fig. 6A and Figure 6B The description given may be applied to the coupling structure of the first sound generating device 1900 and the second sound generating device 1900 ′ and the supporting member.

[0190] exist Figure 8CIn the embodiment, the first sound generating device 1800 and the second sound generating device 1800' can be configured as a pair of sound generating devices. Fig. 6A and Figure 6B The sound generating device described in the embodiment of the present invention can be applied to the pair of sound generating devices. For example, the pair of sound generating devices can be composed of two or more reference Fig. 6A and Figure 6B The sound generating device described above can be configured such that the two sound generating devices can be arranged adjacent to each other. Fig. 6A and Figure 6B The given description may be applied to the coupling structure of the first sound generating device 1800 and the second sound generating device 1800 ′ and the supporting member.

[0191] The following will refer to Fig. 8A Describes separators and spacers, and the descriptions thereof apply equally to Figure 8B and Figure 8C .

[0192] Reference FIG. 8A to FIG. 8C , the first spacer 1700 may be between the display panel and the support member 300. For example, the first spacer 1700 may be between the rear surface of the display panel and the upper surface of the support member 300. In addition, the first spacer 1700 may be on the support member 300. For example, the first spacer 1700 may be in the edge or periphery of the support member 300, or in the edge or periphery of the upper surface of the support member 300. In addition, the first spacer 1700 may be in the edge or periphery of the display panel. For example, the first spacer 1700 may be in the edge or periphery of the rear surface of the display panel. In addition, the first spacer 1700 may be in the entire area of ​​the rear surface of the display panel or the support member 300. In addition, the first spacer 1700 may be in the entire area of ​​the four outer sides of the support member 300 or in the entire area of ​​the rear surface of the display panel.

[0193] Reference Fig. 8A , at least two partitions (e.g., a second partition 1700' and a third partition 1700") may be between the first sound generating device 1300 and the second sound generating device 1300'. For example, the second partition 1700' may be between the first region L and the third region C, and the third partition 1700" may be between the second region R and the third region C.

[0194] The first partition 1700, the second partition 1700' and the third partition 1700" may form an air gap or space that generates sound when the display panel 100 vibrates. The air gap or space that generates or transmits sound may be formed by a "partition". The partition may be referred to as a "housing" or a "baffle", but the term is not limited thereto. In addition, the first partition 1700, the second partition 1700' and the third partition 1700" may have a sealed structure, or may have an unsealed structure.

[0195] The first partition 1700, the second partition 1700', and the third partition 1700" may prevent sound from leaking to the outside through each side surface of the display panel 100, and thus, the sound output from the first sound generating device 1300 and the second sound generating device 1300' may be output only to a forward area in front of the display panel 100, thereby enhancing the sound output characteristics.

[0196] The first spacer 1700, the second spacer 1700' and the third spacer 1700" may be between the display panel 100 and the support member 300. For example, the first spacer 1700, the second spacer 1700' and the third spacer 1700" may be between the rear surface of the display panel 100 and the upper surface of the support member 300. In addition, the first spacer 1700, the second spacer 1700' and the third spacer 1700" may be on the support member 300. In addition, the first spacer 1700, the second spacer 1700' and the third spacer 1700" may be on the display panel 100. FIG. 8A to FIG. 11C 17, an example in which the first spacer 1700, the second spacer 1700', and the third spacer 1700" are disposed on the supporting member 300 will be described.

[0197] The second partition 1700' and the third partition 1700" can separate the left sound and the right sound generated by the first sound generating device 1300 and the second sound generating device 1300', respectively. In addition, the vibration of the display panel 100 performed in the space or air gap defined as the second partition 1700' and the third partition 1700", can be attenuated or absorbed by the center of the display panel 100, thereby preventing the sound generated in the left area from being transmitted to the space of the right area. Therefore, since the display device according to an embodiment of the present disclosure includes the second partition 1700' and the third partition 1700", the left sound and the right sound can be separated from each other, thereby enhancing the sound output characteristics. In addition, the first sound generating device 1300 and the second sound generating device 1300' can output the sound of the middle-pitched sound band and the sound of the high-pitched sound band, and can output stereo sound by separating the left sound and the right sound, thereby providing a display device with 2.1 channel sound output characteristics.

[0198] The first sound generating device 1300 may be in the first area L as the left area, the second sound generating device 1300' may be in the second area R as the right area, and the sound generating device may not be in the third area C as the central area. Therefore, it is possible to reduce the reduction in sound quality caused by interference in the first area L and the second area R. In addition, the sound output characteristics of the low, middle, and high pitch sound bands can be further enhanced.

[0199] In addition, the area of ​​the third region C can be adjusted to be smaller than the area of ​​the first region L and the area of ​​the second region R. Therefore, the sound of the low-pitched sound band can be enhanced. In addition, the third region C can reduce the reduction in sound quality caused by interference in the first region L and the second region R. Therefore, the sound of the low, medium and high-pitched sound bands can be enhanced. The description of the first partition 1700, the second partition 1700' and the third partition 1700" can be applied to the same FIG. 8B to FIG. 11C .

[0200] exist Figures 8A to 11C In the embodiment, the first spacer 1700 may be the adhesive member described above with reference to FIG. 1. In addition, the adhesive member for attaching the support member to the display panel may also be provided between the display panel and the support member described above with reference to FIG. 1. For example, the adhesive member may also be located at an edge or periphery of the display panel or an edge or periphery of the support member.

[0201] FIG. 8A to FIG. 11C An example is shown in which the sound generating device is located on one side of the left area (first area L) or the right area (second area R) of the display panel 100 instead of being set in the center of the left area or the right area, but the present embodiment is not limited thereto. In other embodiments, the sound generating device may be located in the center of the left area (first area L) or the right area (second area R) of the display panel 100. Alternatively, the sound generating device may be asymmetrically located in the first area L and the second area R of the display panel 100. Compared with the case where the sound generating device is set in the center of the left area (first area L) or the right area (second area R) of the display panel 100, in the case where the sound generating device is set on one side of the left area or the right area, the stereo characteristic can be further enhanced.

[0202] A partition having a dual structure including two or more partitions may be located between the first sound generating device 1300 and the second sound generating device 1300'. For example, when implementing a monophonic sound (where the left and right regions output the same sound), the left and right regions of the display panel may have the same vibration characteristics, and therefore, a resonance phenomenon or an interference phenomenon may increase and / or maximize in a specific frequency band, resulting in a reduction in sound pressure. Therefore, the partition may be configured as a structure including two or more partitions to reduce the influence on the sound characteristics caused by the resonant frequency difference of the mid-high pitch sound appearing in the first sound generating device in the first region L (left region) and the second sound generating device in the second region R (right region). When there are three or more partitions between the first sound generating device 1300 and the second sound generating device 1300', even if the sound interference in the left and right regions increases, the sound pressure can be prevented from being reduced, thereby avoiding discontinuous recognition of the sound output characteristics.

[0203] Therefore, two or more partitions can be located in the central area of ​​the display panel, thereby reducing the influence on the sound characteristics caused by the resonance frequency difference between the middle-pitched sound and the high-pitched sound in the left and right areas of the display panel. In addition, the partition can be located between the two sound generating devices, so that the left sound and the right sound can be separated from each other, thereby enhancing the stereo characteristics of the sound. In addition, the two sound generating devices can also output different sounds of the low-pitched sound band, the middle-pitched sound band, and the high-pitched sound band.

[0204] A glass substrate may be used as a substrate constituting the display panel 100. In order to realize a thin display device, the thickness of the glass substrate may be adjusted to be thinner. For example, by using a glass substrate whose thickness is reduced from 0.7 mm to 0.5 mm, a thinner display device may be realized.

[0205] When the thickness of the substrate becomes thinner, and when the spacer is disposed on the rear surface of the display panel 100 or the upper surface of the support member, when the support member is attached to the display panel 100, due to the presence of the spacer, the display panel 100 may be uneven and a step height may be formed in the display panel 100. For example, the display panel 100 may be uneven and the non-uniformity of the screen may be seen. This phenomenon may be referred to as a non-uniform phenomenon or a wave phenomenon of the display panel 100, and the term is not limited thereto. An example in which the spacer is disposed in the support member will be described, and even when the spacer is disposed on the rear surface of the display panel, a wave phenomenon may occur. Therefore, in order to reduce the wave phenomenon, the first spacer 1700 may be disposed along the shape of the display panel 100. For example, the first spacer 1700 may have a quadrangular (e.g., quadrilateral) shape, but is not limited thereto. In other embodiments, the shape of the first spacer 1700 may be modified based on the shape of the display panel 100. In addition, if the display panel 100 is a curved display panel having a curved shape, etc., the first spacer 1700 may have a curved shape or a curved shape. Therefore, the first spacer 1700 may be disposed along the shape of the display panel 100, and thus, in the process of attaching the support member to the display panel 100, the degree to which the display panel 100 is stretched is reduced, thereby preventing a ripple phenomenon.

[0206] The sound waves generated when the display panel is vibrated by the vibration generating device may diffuse radially from the center of the vibration generating device and may propagate. The sound waves may be referred to as traveling waves. The traveling waves may be reflected by the side of the partition to generate reflected waves, and the reflected waves may propagate in the opposite direction to the traveling waves. The reflected waves overlap and interfere with the traveling waves and do not propagate, thereby generating standing waves that reside at a specific position. The standing waves reduce the sound pressure, thereby reducing the sound output characteristics.

[0207] If the first partition 1700 is provided, it may not be able to control the peaks and dips caused by the standing waves. Therefore, the inventors have recognized that the first partition 1700 may have a structure for controlling the peaks and dips caused by the standing waves. Here, the peak may be a phenomenon in which the sound pressure rises suddenly at a specific frequency, and the dip may be a phenomenon in which the generation of a specific frequency is suppressed to produce low sound pressure. The sound output characteristics of the display device may be reduced due to the peak or dip. Such a structure may be configured to prevent the ripple phenomenon and enable the peaks and dips caused by the standing waves to be easily controlled. Therefore, a pad may be located in the first partition 1700 to reduce the peaks and dips caused by the standing waves appearing in the length direction of the first sound generating device 1300 and the second sound generating device 1300'. Therefore, the degree of reduction in sound pressure caused by the standing waves generated by the interference between the reflected wave and the traveling wave can be reduced. In addition, the standing waves that cause the sound pressure reduction are generated more greatly at positions where the levels of the traveling wave and the reflected wave are higher.

[0208] Therefore, the pad can be set at a position where the level of the sound wave transmitted from the vibration generating device is the highest. For example, the pad can be set on one or more sides of the first partition 1700. The pad can be set on one or more sides where the strongest sound waves reach among the four sides of the first partition 1700, and can be configured to face the first sound generating device 1300 and the second sound generating device 1300'. FIG. 8A to FIG. 11C The spacers and the spacers provided in the support member are described, but the present disclosure is not limited thereto. Even when the spacers and the spacers are provided in the rear surface of the display panel, the same description can be applied.

[0209] The shape of the spacer block may be implemented to prevent a ripple phenomenon from occurring when the display panel 100 is stretched in the process of attaching the spacer block provided on the support member to the display panel 100. Alternatively, the shape of the spacer block may be implemented to prevent a ripple phenomenon from occurring when the support member is stretched in the process of attaching the spacer block arranged on the display panel 100 to the support member. For example, the shape of the spacer block may be implemented to prevent the ripple phenomenon and to enable the spikes and dips caused by the standing waves to be easily controlled. Through various experiments, the spacer block has been implemented in a quadrangular (e.g., quadrilateral) shape or a rounded quadrangular (e.g., quadrilateral) shape.

[0210] Reference Fig. 8A, at least one spacer may be provided on at least one side of the first spacer 1700 for reducing the peaks and dips caused by the standing waves. For example, the first spacer 1700 may include a first side and a second side perpendicular to the first side, and at least one first spacer 811 and at least one seventh spacer 821 may be on the first side. At least one first spacer 811 may be in the first region L, and at least one seventh spacer 821 may be in the second region R. The first spacer 811 and the seventh spacer 821 may be provided as one or more. The first side may be the width direction of the display panel 100 or the support member 300, and the second side may be the length direction of the display panel 100 or the support member 300. The width direction and the length direction may be used interchangeably.

[0211] At least one second cushion block 812 may be provided to face at least one first cushion block 811. For example, at least one second cushion block 812 may be on a side facing at least one first cushion block 811. At least one second cushion block 812 may be in the first region L. At least one second cushion block 812 may be provided as one or more.

[0212] At least one eighth spacer 822 may be provided to face at least one seventh spacer 821. For example, at least one eighth spacer 822 may be on a side facing at least one seventh spacer 821. At least one eighth spacer 822 may be in the second region R. At least one eighth spacer 822 may be provided as one or more.

[0213] The second gasket 812 and the eighth gasket 822 may also be located on the side facing the first side of the first partition 1700. The second gasket 812 may be on the side facing the first side of the first partition 1700 in the first region L, and the eighth gasket 822 may be on the side facing the first side of the first partition 1700 in the second region R. The second gasket 812 may be disposed to face the first gasket 811. The eighth gasket 822 may be disposed to face the seventh gasket 821. The second gasket 812 and the eighth gasket 822 may be provided as one or more.

[0214] At least one first pad 811 and at least one second pad 812 may be disposed to face the first sound generating device 1300. At least one seventh pad 821 and at least one eighth pad 822 may be disposed to face the second sound generating device 1300'. For example, the first pad 811 and the second pad 812 may be in the first region L to face the first sound generating device 1300, and the seventh pad 821 and the eighth pad 822 may be in the second region R to face the second sound generating device 1300'. Therefore, the pads 811, 812, 821, and 822 may reduce the peaks or dips caused by the standing waves that occur in the length direction of the first sound generating device 1300 and the second sound generating device 1300' and may allow the vibration to be transmitted laterally, thereby enhancing the sound output characteristics.

[0215] The third pad 813, the fourth pad 814, the ninth pad 823, and the tenth pad 824 may be further on the second side of the first partition 1700. The third pad 813, the fourth pad 814, the ninth pad 823, and the tenth pad 824 may be provided as one or more on one side or more sides of the first partition 1700. The third pad 813, the fourth pad 814, the ninth pad 823, and the tenth pad 824 may be in at least one of the first region L and the second region R. For example, the third pad 813 and the fourth pad 814 may be in the first region L, and the ninth pad 823 and the tenth pad 824 may be in the second region R. For example, the third pad 813 and the fourth pad 814 may be provided symmetrically with respect to the first sound generating device 1300, and the ninth pad 823 and the tenth pad 824 may be provided symmetrically with respect to the second sound generating device 1300'.

[0216] When the spacer is formed of the same material as the material of the first spacer 1700, a ripple phenomenon may occur at the location where the spacer is set. Because the display panel is more stretched at the location where the spacer is set when the adhesive force of the first spacer 1700 is the same as the adhesive force of the spacer, the occurrence of the ripple phenomenon has been recognized. For example, the spacer may be formed of a material for reducing the degree to which the display panel 100 is stretched during the process of attaching the support member 300 to the display panel 100. The spacer in the first spacer 1700 may be formed of a material for reducing the degree to which the display panel 100 is stretched during the process of contacting the display panel 100. When the spacer is formed of a material different from the material of the first spacer 1700, the ripple phenomenon can be reduced.

[0217] Therefore, at least one first spacer 811 may be formed of a material different from that of the first spacer 1700. Also, in one example, the first spacer 1700 may be formed of a double-sided tape. When the first spacer 1700 is formed of a double-sided tape, the moire phenomenon may not be reduced compared to a single-sided tape, but the adhesive force between the display panel and the support member is enhanced and the sound quality is improved.

[0218] At least one first spacer 811 may be formed of a material different from that of at least one of the first, second, and third spacers 1700, 1700', and 1700". At least one first spacer 811 or at least one second spacer 812 may be formed of a material different from that of the first spacer 1700. At least one first spacer 811 or at least one second spacer 812 may be formed of a material different from that of at least one of the first, second, and third spacers 1700, 1700". At least one second spacer 812 may be formed of the same material as that of at least one first spacer 811. At least one third spacer 813 or at least one fourth spacer 814 may be formed of a material different from that of the first spacer 1700. At least one third spacer 813 or at least one fourth spacer 814 may be formed of a material different from that of at least one of the first spacer 1700, the second spacer 1700′, and the third spacer 1700″. At least one third spacer 813 or at least one fourth spacer 814 may be formed of a material the same as that of the at least one first spacer 811.

[0219] One of the second spacer 1700' and the third spacer 1700" may be formed of the same material as that of the first spacer 1700. For example, the second spacer 1700' or the third spacer 1700" may be formed of a double-sided tape or a double-sided foam pad. The double-sided tape or the double-sided foam pad may include a foam material that absorbs impact when contacting the display panel 100. When the double-sided tape or the double-sided foam pad does not include a foam material, an undesirable abnormal sound may occur due to contacting the display panel 100. For example, the first spacer 1700 may be formed of a material having elasticity, which enables compression to a certain extent. The first spacer 1700 may be formed of polyurethane, polyolefin and / or polyethylene, etc., but is not limited thereto. The second and third spacers 1700' and 1700" may be formed of the same material as the first spacer 1700. When the second and third spacers 1700' and 1700" are formed of the same material as the first spacer 1700, adhesive force may be enhanced during attachment of the display panel 100 to the support member 300.

[0220] At least one seventh spacer 821 or at least one eighth spacer 822 may be formed of a material different from that of the first spacer 1700. At least one seventh spacer 821 or at least one eighth spacer 822 may be formed of a material different from that of at least one of the first spacer 1700, the second spacer 1700', and the third spacer 1700". At least one seventh spacer 821 or at least one eighth spacer 822 may be formed of the same material as that of the at least one first spacer 811. At least one eighth spacer 822 may be formed of the same material as that of the at least one seventh spacer 821.

[0221] At least one ninth spacer 823 or at least one tenth spacer 824 may be formed of a material different from that of the first spacer 1700. At least one ninth spacer 823 or at least one tenth spacer 824 may be formed of a material different from that of at least one of the first spacer 1700, the second spacer 1700', and the third spacer 1700". At least one ninth spacer 823 or at least one tenth spacer 824 may be formed of the same material as that of the at least one first spacer 811. At least one ninth spacer 823 or at least one tenth spacer 824 may be formed of the same material as that of the at least one seventh spacer 821.

[0222] The first to fourth pads 811 to 814 and the seventh to tenth pads 821 to 824 may be formed of a material different from that of the first spacer 1700. The first to fourth pads 811 to 814 and the seventh to tenth pads 821 to 824 may be formed of a material different from that of the second spacer 1700' or the third spacer 1700". For example, the first to fourth pads 811 to 814 and the seventh to tenth pads 821 to 824 may be formed of a single-sided tape. The single-sided tape may include a foam material that absorbs impact when contacting the display panel 100. When the single-sided tape does not include the foam material, an undesirable abnormal sound may occur due to contacting the display panel 100. For example, the single-sided tape may be formed of polyurethane, polyolefin, and / or polyethylene, etc., but not This is limited. When the first spacer 1700, the first to fourth spacers 811 to 814, and the seventh to tenth spacers 821 to 824 are formed of different materials, these materials may be the same material with different adhesive forces. Alternatively, the materials may be different and may have different adhesive forces, but are not limited thereto. In this case, the degree to which the display panel 100 is stretched during the process of attaching the display panel 100 and the support member 300 to the first to fourth spacers 811 to 814 and the seventh to tenth spacers 821 to 824 provided in the first spacer 1700 can be reduced, thereby preventing the ripple phenomenon.

[0223] Therefore, since one or more spacers are provided on at least one side of the partition, the partition and the spacers may be formed of different materials, and a corrugation phenomenon may be reduced, thereby enhancing sound output characteristics.

[0224] 9A to 9C A sound generating device and a partition in a display device according to another embodiment of the present disclosure are shown.

[0225] exist 9A to 9C In the above reference FIG. 8A to FIG. 8C The same description is omitted or will be briefly given below. For example, the description of the sound generating device and the pad is omitted or will be briefly given below. Fig.9A Describes separators and spacers, and the descriptions thereof apply equally to Fig. 9B and Fig. 9C .

[0226] Reference 9A to 9C , a pad may be provided on at least one side of the first partition 1700 to reduce the peaks and dips caused by standing waves appearing in the length direction of the first sound generating device and the second sound generating device. For example, the first partition 1700 may include a first side portion and a second side portion perpendicular to the first side portion, and the first pad 811 and the seventh pad 821 may be provided on the first side portion. The second pad 812 and the eighth pad 822 may be further provided on the side facing the first side portion of the first partition 1700. The third pad 813, the fourth pad 814, the ninth pad 823 and the tenth pad 824 may be on the second side portion of the first partition 1700. The description of the first to fourth pads 811 to 814 and the seventh to tenth pads 821 to 824 is the same as that described above with reference to Figures 8A to 8C The description given is the same and thus omitted, but will be briefly given below.

[0227] Reference Fig.9A, at least one fifth spacer 815, sixth spacer 816, eleventh spacer 825, and twelfth spacer 826 may be further on the side facing the second side of the first separator 1700. For example, the fifth spacer 815 and the sixth spacer 816 may be on the side of the first region L facing the second side of the first separator 1700, and may be on one side of the second separator 1700'. For example, the eleventh and twelfth pads 825 and 826 may be on the side of the second region R facing the second side of the first partition 1700, and may be on one side of the third partition 1700". The fifth and sixth pads 815 and 816 may be disposed to face the third and fourth pads 813 and 814. For example, the fifth and sixth pads 815 and 816 may be disposed symmetrically with respect to the first sound generating device 1300. The eleventh and twelfth pads 825 and 826 may be disposed to face the ninth and tenth pads 823 and 824. For example, the eleventh and twelfth pads 825 and 826 may be disposed symmetrically with respect to the second sound generating device 1300'.

[0228] At least one first spacer 811 may be formed of a material different from that of the first separator 1700. At least one first spacer 811 may be formed of a material different from that of at least one of the first separator 1700, the second separator 1700', and the third separator 1700". At least one first spacer 811 or at least one second spacer 812 may be formed of a material different from that of the first separator 1700. At least one first spacer 811 or at least one second spacer 812 may be formed of a material different from that of at least one of the first separator 1700, the second separator 1700', and the third separator 1700". At least one second spacer 812 may be formed of the same material as that of at least one first spacer 811.

[0229] At least one third spacer 813 or at least one fourth spacer 814 may be formed of a material different from that of the first separator 1700. At least one third spacer 813 or at least one fourth spacer 814 may be formed of a material different from that of at least one of the first separator 1700, the second separator 1700', and the third separator 1700". At least one third spacer 813 or at least one fourth spacer 814 may be formed of the same material as that of at least one first spacer 811. At least one fifth spacer 815 or at least one sixth spacer 816 may be formed of a material different from that of the first separator 1700. At least one fifth spacer 815 or at least one sixth spacer 816 may be formed of a material different from that of at least one of the first separator 1700, the second separator 1700', and the third separator 1700". At least one fifth spacer 815 or at least one sixth spacer 816 may be formed of the same material as that of at least one first spacer 811.

[0230] At least one seventh spacer 821 or at least one eighth spacer 822 may be formed of a material different from that of the first separator 1700. At least one seventh spacer 821 or at least one eighth spacer 822 may be formed of a material different from that of at least one of the first separator 1700, the second separator 1700', and the third separator 1700". At least one seventh spacer 821 or at least one eighth spacer 822 may be formed of the same material as that of at least one first spacer 811. At least one eighth spacer 822 may be formed of the same material as that of at least one seventh spacer 821. At least one ninth spacer 823 or at least one tenth spacer 824 may be formed of a material different from that of the first separator 1700. At least one ninth spacer 823 or at least one tenth spacer 824 may be formed of a material different from that of at least one of the first separator 1700, the second separator 1700', and the third separator 1700". At least one ninth spacer 823 or at least one tenth spacer 824 may be formed of the same material as that of at least one seventh spacer 821. At least one ninth gasket 823 or at least one tenth gasket 824 may be formed of the same material as that of at least one seventh gasket 821. At least one eleventh gasket 825 or at least one twelfth gasket 826 may be formed of a material different from that of the first separator 1700. At least one eleventh gasket 825 or at least one twelfth gasket 826 may be formed of a material different from that of at least one of the first separator 1700, the second separator 1700', and the third separator 1700". At least one eleventh gasket 825 or at least one twelfth gasket 826 may be formed of the same material as that of at least one first gasket 811. At least one eleventh gasket 825 or at least one twelfth gasket 826 may be formed of the same material as that of at least one seventh gasket 821.

[0231] The first to sixth pads 811 to 816 and the seventh to twelfth pads 821 to 826 may be formed of a material different from that of the first spacer 1700. The first to sixth pads 811 to 816 and the seventh to twelfth pads 821 to 826 may be formed of a material different from that of the second spacer 1700' or the third spacer 1700". For example, the first to sixth pads 811 to 816 and the seventh to twelfth pads 821 to 826 may be formed of a single-sided tape. The single-sided tape may include a foam material that absorbs impact when contacting the display panel 100. When the single-sided tape does not include the foam material, an undesirable abnormal sound may occur due to contacting the display panel 100. For example, the single-sided tape may be formed of polyurethane, polyolefin and / or polyethylene, etc. But not limited to this. When the first spacer 1700, the first to sixth spacers 811 to 816, and the seventh to twelfth spacers 821 to 826 are formed of different materials, these materials may be the same material with different adhesive forces. Alternatively, the materials may be different and may have different adhesive forces, but not limited to this. In this case, in the process of attaching the display panel 100 and the support member 300 to the first to sixth spacers 811 to 816 and the seventh to twelfth spacers 821 to 826 in the first spacer 1700, the degree to which the display panel 100 is stretched can be reduced, thereby preventing the ripple phenomenon.

[0232] The fifth pad 815, the sixth pad 816, the eleventh pad 825, and the twelfth pad 826 can further reduce the peak or dip caused by the interference between the reflected wave and the traveling wave, and can better prevent the sound quality from being reduced due to the standing wave or the reflected wave. Therefore, since the partition and the pad are formed of different materials, the ripple phenomenon can be reduced, and the peak or dip caused by the standing wave can be further reduced based on the pad, thereby enhancing the sound output characteristics.

[0233] FIG. 10A to FIG. 10C A sound generating device and a partition in a display device according to another embodiment of the present disclosure are shown.

[0234] exist FIG. 10A to FIG. 10C In the above reference Figures 8A to 8C The same description is omitted or will be briefly given below. For example, the description of the sound generating device and the pad is omitted or will be briefly given below. Fig. 10A Describes separators, spacers and members, and the descriptions apply equally to Fig. 10B and Fig. 10C .

[0235] Reference FIG. 10A to FIG. 10C, the spacers may be on at least one side of the first partition 1700 to reduce the peaks and dips caused by standing waves appearing in the length direction of the first sound generating device and the second sound generating device. For example, the first partition 1700 may include a first side and a second side perpendicular to the first side, and the first spacer 811 and the seventh spacer 821 may be in the first side. The second spacer 812 and the eighth spacer 822 may also be on the side facing the first side of the first partition 1700. The third spacer 813, the fourth spacer 814, the ninth spacer 823 and the tenth spacer 824 may be on the second side of the first partition 1700. The description of the first to fourth spacers 811 to 814 and the seventh to tenth spacers 821 to 824 is the same as that described above with reference to FIG. 8A to FIG. 8C The description given is the same and thus omitted, but will be briefly given below.

[0236] Reference Fig. 10A , at least one first member 911 and at least one second member 912 may be further on one side of the second partition 1700 ′. At least one third member 913 and at least one fourth member 914 may be further on one side of the third partition 1700". At least one first member 911 and at least one second member 912 may be in the third region C and may be between the third spacer 813 and the fourth spacer 814. At least one third member 913 and at least one fourth member 914 may be in the third region C and may be between the ninth spacer 823 and the tenth spacer 824. At least one first member 911 and at least one second member 912 may be in the width direction of the display panel 100 or the support member 300. At least one third member 913 and at least one fourth member 914 may be in the width direction of the display panel 100 or the support member 300. The first member 911 and the second member 912 may prevent the vibration generated by the first sound generating device 1300 from crossing the second partition 1700'. The third member 913 and the fourth member 914 may prevent the vibration generated by the second sound generating device 1300' from crossing the third partition 1700". Therefore, the first to fourth members 911 to 914 may control waves or vibrations generated between the second and third partitions 1700' and 1700" and transferred to the first and / or second regions L and R, thereby providing a display device having more enhanced sound output characteristics.

[0237] The first member 911 and the second member 912 may be disposed symmetrically or asymmetrically with respect to the first sound generating device 1300. For example, the first member 911 or the second member 912 may be disposed above or below the third member 913 or the fourth member 914 with respect to the first sound generating device 1300. Fig. 10A, it is shown that the first member 911 and the second member 912 are provided as two, and the third member 913 and the fourth member 914 are provided as two. However, the present embodiment is not limited thereto, and the first member 911 and the third member 913 may be provided as one or more. For example, only one of the first member 911 and the second member 912 may be provided, or only one of the third member 913 and the fourth member 914 may be provided. When one of the first member 911 and the second member 912 is provided or one of the third member 913 and the fourth member 914 is provided, the first member 911 and the third member 913 may be arranged symmetrically with respect to the first sound generating device 1300. For example, the first member 911 and the third member 913 may be provided on the same line with the first sound generating device 1300 with respect to the first sound generating device 1300. As another example, the first member 911 and the third member 913 may be provided on the same line with the second sound generating device 1300' with respect to the second sound generating device 1300'. When the first member 911 and the second member 912 are provided as one or the third member 913 and the fourth member 914 are provided as one, the first member 911 and the third member 913 may be provided asymmetrically with respect to the first sound generating device 1300. For example, the first member 911 may be located above the first sound generating device 1300 with respect to the first sound generating device 1300, and the third member 913 may be located below the first sound generating device 1300 with respect to the first sound generating device 1300. As another example, the first member 911 may be located above the second sound generating device 1300' with respect to the second sound generating device 1300', and the third member 913 may be located below the second sound generating device 1300' with respect to the second sound generating device 1300'.

[0238] The first member 911 to the fourth member 914 may be formed of one of a double-sided tape, a single-sided tape, an adhesive, and a bonding agent. The first member 911 to the fourth member 914 may be in the width direction of the display panel 100, so when the first member 911 to the fourth member 914 is formed of a material different from the material of the third pad 813 and the fourth pad 814 or the ninth pad 823 and the tenth pad 824, when contacting the display panel 100, a ripple phenomenon may occur due to the presence of different adhesive forces. Therefore, when the first member 911 to the fourth member 914 is formed of the same material as the material of the third pad 813 and the fourth pad 814 or the ninth pad 823 and the tenth pad 824, the ripple phenomenon can be reduced, and the occurrence of abnormal sounds can be reduced. The first member 911 and the second member 912 may be formed of the same material as the material of the third pad 813 and the fourth pad 814. The third pad 813 and the fourth pad 814 may be formed of the same material as the first pad 811 or the second pad 812. The third member 913 and the fourth member 914 may be formed of the same material as the ninth pad 823 and the tenth pad 824. The third pad 813 and the fourth pad 814 may be formed of the same material as the first pad 811 or the second pad 812. The ninth pad 823 and the tenth pad 824 may be formed of the same material as the first pad 811 and the second pad 812. For example, the first member 911 to the fourth member 914 may be formed of a single-sided tape. The single-sided tape may include a foam material that absorbs impact when contacting the display panel 100. When the single-sided tape does not include a foam material, it can be seen that an undesirable abnormal sound is generated due to contacting the display panel 100. The single-sided tape may be formed of, for example, polyurethane, polyolefin and / or polyethylene, but is not limited thereto.

[0239] The shapes of the first to fourth pads 811 to 814, the shapes of the seventh to tenth pads 821 to 824, and the shapes of the first to fourth members 911 to 914 may be quadrilateral (e.g., quadrilateral) shapes or rounded quadrilateral (e.g., quadrilateral) shapes, but are not limited thereto and may be set to various shapes, such as a circle.

[0240] Therefore, since the partition is configured based on the shape of the display panel and one or more spacer parts are provided on at least one side of the partition, the ripple phenomenon can be reduced, and the peak or dip caused by the standing wave can be reduced, thereby enhancing the sound output characteristics. In addition, since the partition and the spacer part are formed of different materials, the ripple phenomenon can be reduced and the occurrence of abnormal sound can be prevented, thereby enhancing the sound output characteristics. In addition, since the component is further provided, the sound output characteristics can be further enhanced.

[0241] FIG. 11A to FIG. 11CA sound generating device and a partition in a display device according to another embodiment of the present disclosure are shown.

[0242] exist FIG. 11A to FIG. 11C In the above reference Figures 8A to 8C The same description is omitted or will be briefly given below. For example, the description of the sound generating device and the pad is omitted or will be briefly given below. Fig.11A Describes separators, spacers and members, and the descriptions apply equally to Fig. 11B and Fig. 11C .

[0243] Reference FIG. 11A to FIG. 11C , a pad may be provided on at least one side of the first partition 1700 to reduce the peaks and dips caused by standing waves appearing in the length direction of the first sound generating device and the second sound generating device. For example, the first partition 1700 may include a first side and a second side perpendicular to the first side, and the first pad 811 and the seventh pad 821 may be provided on the first side. The second pad 812 and the eighth pad 822 may be further provided on the side facing the first side of the first partition 1700. The third pad 813, the fourth pad 814, the ninth pad 823 and the tenth pad 824 may be provided on the second side of the first partition 1700. The description of the first to fourth pads 811 to 814 and the seventh to tenth pads 821 to 824 is the same as that described above with reference to FIG. Figures 8A to 8C The description given is the same and thus omitted, but will be briefly given below.

[0244] Reference Fig.11A , at least one fifth spacer 815, sixth spacer 816, eleventh spacer 825, and twelfth spacer 826 may be further disposed on the side facing the second side of the first separator 1700. For example, the fifth spacer 815 and the sixth spacer 816 may be on the side of the first region L facing the second side of the first separator 1700, and may be disposed on one side of the second separator 1700'. For example, the eleventh and twelfth pads 825 and 826 may be on the side of the second region R facing the second side of the first partition 1700, and may be on one side of the third partition 1700". The fifth and sixth pads 815 and 816 may be disposed to face the third and fourth pads 813 and 814. For example, the fifth and sixth pads 815 and 816 may be disposed symmetrically with respect to the first sound generating device 1300. The eleventh and twelfth pads 825 and 826 may be disposed to face the ninth and tenth pads 823 and 824. For example, the eleventh and twelfth pads 825 and 826 may be disposed symmetrically with respect to the second sound generating device 1300'.

[0245] At least one fifth spacer 815 or at least one sixth spacer 816 may be formed of a material different from that of the first spacer 1700. At least one fifth spacer 815 or at least one sixth spacer 816 may be formed of a material different from that of at least one of the first spacer 1700, the second spacer 1700', and the third spacer 1700". At least one fifth spacer 815 or at least one sixth spacer 816 may be formed of the same material as that of the at least one first spacer 811.

[0246] At least one eleventh spacer 825 or at least one twelfth spacer 826 may be formed of a material different from that of the first spacer 1700. At least one eleventh spacer 825 or at least one twelfth spacer 826 may be formed of a material different from that of at least one of the first spacer 1700, the second spacer 1700', and the third spacer 1700". At least one eleventh spacer 825 or at least one twelfth spacer 826 may be formed of the same material as that of at least one first spacer 811. At least one eleventh spacer 825 or at least one twelfth spacer 826 may be formed of the same material as that of at least one seventh spacer 821.

[0247] The first to sixth gaskets 811 to 816 and the seventh to twelfth gaskets 821 to 826 may be formed of a material different from that of the first spacer 1700. The first to sixth gaskets 811 to 816 and the seventh to twelfth gaskets 821 to 826 may be formed of a material different from that of the second spacer 1700' or the third spacer 1700". For example, the first to sixth gaskets 811 to 816 and the seventh to twelfth gaskets 821 to 826 may be formed of a single-sided tape. The single-sided tape may include a foam material that absorbs impact when contacting the display panel 100. When the single-sided tape does not include the foam material, an undesirable abnormal sound may occur due to contacting the display panel 100. For example, the single-sided tape may be formed of polyurethane, polyolefin, and / or polyethylene, etc., but Not limited thereto. When the first spacer 1700, the first to sixth spacers 811 to 816, and the seventh to twelfth spacers 821 to 826 are formed of different materials, these materials may be the same material with different adhesive forces. Alternatively, the materials may be different and may have different adhesive forces, but are not limited thereto. In this case, in the process of attaching the display panel 100 and the support member 300 to the first to sixth spacers 811 to 816 and the seventh to twelfth spacers 821 to 826 provided in the first spacer 1700, the degree to which the display panel 100 is stretched may be reduced, thereby preventing the ripple phenomenon.

[0248] At least one first member 911 or at least one second member 912 may be further disposed in at least one side of the second partition 1700'. At least one third member 913 or at least one fourth member 914 may be further disposed in at least one side of the third partition 1700". The first member 911 to the fourth member 914 are as described above with reference to FIG. 10A to FIG. 10C Therefore, the detailed description is omitted.

[0249] Therefore, since the partition is configured based on the shape of the display panel and one or more spacer parts are provided on at least one side of the partition, the ripple phenomenon can be reduced, and the peak or dip caused by the standing wave can be reduced, thereby enhancing the sound output characteristics. In addition, since the partition and the spacer part are formed of different materials, the ripple phenomenon can be reduced, and the occurrence of abnormal sound can be prevented, thereby enhancing the sound output characteristics. In addition, since a component is further provided, the sound output characteristics can be further enhanced.

[0250] Since the display device according to the embodiment of the present disclosure includes a sound generating device that vibrates the display panel to generate sound, the sound of the display device can be output to the area in front of the display panel, thereby enhancing the immersion of the viewer who views the image displayed by the display device.

[0251] Furthermore, since the display device according to the embodiment of the present disclosure includes a sound generating device that vibrates the display panel to generate sound, a speaker may not be provided, thus enhancing the degree of freedom in design of the set and arrangement of elements.

[0252] Furthermore, according to an embodiment of the present disclosure, the supporting member and the sound generating device may be spaced apart from each other, thereby providing a display device for enhancing sound output characteristics of a low-pitched sound band.

[0253] Furthermore, according to an embodiment of the present disclosure, a supporting member and a sound generating device may be provided to be separated from each other, and a connection portion may be provided between the supporting member and the sound generating device, thereby providing a display device for enhancing sound output characteristics of a low-pitched sound band.

[0254] Furthermore, in the display device according to the embodiment of the present disclosure, a partition and at least one spacer arranged on at least one side of the partition may be provided, and thus, peaks and dips caused by standing waves may be reduced, thereby enhancing sound output characteristics.

[0255] In addition, in the display device according to the embodiment of the present disclosure, at least one spacer may be provided on at least one side of the partition, and at least one member may be provided on at least one side of the partition, thereby reducing the ripple phenomenon of the display panel. Therefore, a display device with enhanced sound output characteristics can be provided.

[0256] Furthermore, according to an embodiment of the present disclosure, since a partition is disposed between one or more sound generating devices arranged on a display panel, the partition may separate sounds, thereby providing a display device that implements stereo sound and has enhanced sound output characteristics.

[0257] In addition, in a display device according to an embodiment of the present disclosure, a partition, at least one spacer arranged on at least one side of the partition, and at least one component may be provided, and at least one of the partition, the spacer, and the component may include different materials, thereby reducing the ripple phenomenon of the display panel.

[0258] The sound generating device according to the embodiment of the present disclosure can be used as a sound generating device in a display device. The display device according to the embodiment of the present disclosure can be applied to a mobile device, a video phone, a smart watch, a watch phone, a wearable device, a foldable device, a rollable device, a bendable device, a flexible device, a bending device, a portable multimedia player (PMP), a personal digital assistant (PDA), an electronic notepad, a desktop personal computer (PC), a laptop PC, a netbook computer, a workstation, a navigation device, a car navigation device, a car display device, a TV, a wallpaper display device, a sign device, a game console, a notebook computer, a display, a camera, a video camera, a household appliance, etc. In addition, the sound generating device according to the embodiment of the present disclosure can be applied to an organic light-emitting lighting device or an inorganic light-emitting lighting device. When the sound generating device is applied to a lighting device, the sound generating device can be used as a lighting and a speaker.

[0259] A display device according to an embodiment of the present disclosure will be described below.

[0260] According to an embodiment of the present disclosure, a display device may include: a display panel configured to display an image; a supporting member on a rear surface of the display panel, the supporting member configured to support the display panel; at least one sound generating device on a rear surface of the display panel, the at least one sound generating device configured to vibrate the display panel to generate sound; and a connecting portion connecting the supporting member to the at least one sound generating device, wherein the at least one sound generating device includes a plate, a frame located outside the plate and spaced apart from the supporting member, a magnet and a center pole on the plate, a bobbin surrounding the center pole, and a coil outside the bobbin, and the connecting portion is between the supporting member and the frame.

[0261] For example, the display device according to an embodiment of the present disclosure may further include a coupling member under the supporting member to couple the at least one sound generating device to the supporting member, wherein the connection portion may be between the coupling member and the frame.

[0262] For example, in the display device according to the embodiment of the present disclosure, the coupling member may include a nut and a screw, and the connection portion may be between the screw and the frame.

[0263] For example, in the display device according to the embodiment of the present disclosure, the connection portion may be between the coupling member and the lower portion of the frame.

[0264] For example, in the display device according to the embodiment of the present disclosure, the frame may have a polygonal shape, and the connection portion may be between the coupling member and each corner of the frame.

[0265] For example, in the display device according to the embodiment of the present disclosure, the connection portion may be between the coupling member and the frame and may be arranged along the periphery of the frame.

[0266] For example, in the display device according to the embodiment of the present disclosure, the connection portion may be on the same plane between the support member and the frame.

[0267] For example, in the display device according to the embodiment of the present disclosure, the connection portion may be configured to provide elasticity to the board based on vibration of at least one sound generating device.

[0268] For example, in a display device according to an embodiment of the present disclosure, at least one sound generating device may also include a damper between the frame and the bobbin, and at least one sound generating device may be configured to use a plate, a magnet, a center pole, a bobbin, a coil, a frame, and a damper to vibrate the display panel to generate sound.

[0269] For example, in the display device according to the embodiment of the present disclosure, the at least one sound generating device may include one or more of a circular sound generating device, an oval sound generating device, and a pair of sound generating devices.

[0270] According to an embodiment of the present disclosure, a display device includes a display panel, which displays an image and includes a first area, a second area, and a third area; at least one sound generating device area, which is in at least one of the first area, the second area, and the third area on the rear surface of the display panel; a supporting member, which is on the rear surface of the display panel, and the supporting member is separated from the at least one sound generating device; and a connecting portion, which is between the at least one sound generating device and the supporting member.

[0271] For example, in a display device according to an embodiment of the present disclosure, at least one sound generating device may include a board, a frame outside the board, a magnet and a center pole on the board, a bobbin surrounding the center pole, and a coil outside the bobbin.

[0272] For example, the display device according to an embodiment of the present disclosure may further include a coupling member coupling the at least one sound generating device to the supporting member, wherein the connection portion may be provided between the coupling member and the frame.

[0273] For example, in the display device according to the embodiment of the present disclosure, the connection portion may be on the same plane between the support member and the frame.

[0274] For example, in the display device according to the embodiment of the present disclosure, the connection portion may be configured to provide elasticity to the board based on vibration of at least one sound generating device.

[0275] For example, the display device according to an embodiment of the present disclosure may further include a first partition between the display panel and the supporting member, the first partition including a first side portion and a second side portion perpendicular to the first side portion; a second partition between the first area and the third area; and a third partition between the second area and the third area.

[0276] For example, the display device according to an embodiment of the present disclosure may also include at least one first spacer in the first area and on the first side and at least one second spacer on the side facing the at least one first spacer, wherein at least one first spacer or at least one second spacer may contain a material different from that of the first spacer.

[0277] For example, the display device according to an embodiment of the present disclosure may further include at least one third spacer or at least one fourth spacer in the second area and on the second side, wherein the at least one third spacer or at least one fourth spacer may contain the same material as that of the at least one first spacer.

[0278] For example, the display device according to an embodiment of the present disclosure may also include at least one seventh pad in the second area and on the first side and at least one eighth pad on the side facing the at least one first pad, wherein the at least one seventh pad or the at least one eighth pad may contain the same material as the at least one first pad.

[0279] For example, the display device according to an embodiment of the present disclosure may further include at least one ninth spacer or at least one tenth spacer in the second area and on the first side, wherein the at least one ninth spacer or at least one tenth spacer may contain the same material as the at least one first spacer.

[0280] For example, in the display device according to the embodiment of the present disclosure, one of the second spacer and the third spacer may include a material different from that of the at least one first spacer.

[0281] For example, the display device according to an embodiment of the present disclosure may further include at least one fifth spacer or at least one sixth spacer in the first area and on one side of the second spacer, wherein the at least one fifth spacer or the at least one sixth spacer may contain the same material as the at least one first spacer.

[0282] For example, the display device according to an embodiment of the present disclosure may further include at least one eleventh spacer or at least one twelfth spacer in the second area and on one side of the third spacer, wherein the at least one eleventh spacer or the at least one twelfth spacer may contain the same material as that of the at least one first spacer.

[0283] For example, the display device according to an embodiment of the present disclosure may further include at least one first member or at least one second member in the third area and on one side of the second partition, wherein the at least one first member or the at least one second member may contain the same material as the at least one first spacer.

[0284] For example, the display device according to an embodiment of the present disclosure may also include at least one third member or at least one fourth member in the third area and on one side of the third separator, wherein the at least one third member or the at least one fourth member may contain the same material as the at least one first spacer.

[0285] For example, in the display device according to the embodiment of the present disclosure, one of the second spacer and the third spacer may include the same material as that of the first spacer.

[0286] It is obvious to those skilled in the art that various modifications and variations can be made to the present disclosure without departing from the technical concept or scope of the present disclosure. Therefore, the embodiments of the present disclosure are intended to cover modifications and variations of the present disclosure that fall within the scope of the appended claims and their equivalents.

[0287] CROSS-REFERENCE TO RELATED APPLICATIONS

[0288] This application claims the benefit of and priority to Korean Patent Application No. 10-2018-0133612, filed on November 2, 2018, which is hereby incorporated by reference in its entirety.

Claims

1. A sound generating device, the sound generating device include: plate; a frame, the frame being outside the panel; a magnet, the magnet being at the plate; a bobbin, the bobbin surrounding the magnet; a coil, the coil being outside the bobbin; a plurality of first connection parts, the plurality of first connection parts are arranged around the frame and connected to the frame; as well as a second connection portion, the second connection portion being arranged around the frame and connected to the plurality of first connection portions, wherein each of the plurality of first connection portions and the second connection portion are located on the same plane, and each of the plurality of first connection portions has a curved line shape between the frame and the second connection portion, and The plurality of first connection parts are configured to include a deformable metal material or a deformable plastic material to provide elasticity to the plate, and are configured to vibrate along with the vibration of the plate.

2. The sound generating device according to claim 1, in, The plurality of first connection portions are configured to extend from the frame to the second connection portion.

3. The sound generating device according to claim 1, in, The plurality of first connection portions are configured to be spaced apart from each other along a periphery of the frame in a space between the frame and the second connection portion, or The plurality of first connection portions are disposed between the frame and the second connection portion, and are configured to be spaced apart from each other along a periphery of the frame.

4. The sound generating device according to any one of claims 1 to 3, in, The plurality of first connection portions and the second connection portion are configured as an integral body or a single body.

5. The sound generating device according to any one of claims 1 to 3, in, A length of each of the plurality of first connection portions disposed between the frame and the second connection portion is greater than a shortest length between the frame and the second connection portion.

6. A display device, the display device include: a display panel, the display panel being configured to display an image; a supporting member, the supporting member being located at a rear surface of the display panel; a sound generating device located at a rear surface of the display panel and configured to vibrate the display panel; as well as a connecting portion located at a rear surface of the supporting member and configured to be connected to the sound generating device, wherein the support member and the sound generating device are configured to be spaced apart from each other in a horizontal direction, Wherein, the connecting portion comprises: a plurality of first connection portions connected to the sound generating device, the plurality of first connection portions being spaced apart from each other; and a second connection portion located at a rear surface of the support member and configured to be connected to the plurality of first connection portions, wherein each of the plurality of first connection parts and the second connection part are located on the same plane, and each of the plurality of first connection parts has a curved line shape between the sound generating device and the second connection part, and The plurality of first connection parts are configured to include a deformable metal material or a deformable plastic material to provide elasticity to the sound generating device, and are configured to vibrate along with the vibration of the sound generating device.

7. The display device according to claim 6, in, The connection portion is arranged in a space between the supporting member and the sound generating device.

8. The display device according to claim 6, further comprising a coupling member configured to couple the connection portion to a rear surface of the support member, in, The connection portion is arranged between the coupling member and the sound generating device.

9. The display device according to claim 8, in, The second connection portion is coupled to the coupling member.

10. The display device according to claim 9, in, The coupling member includes a nut and a screw, and Wherein, the second connection portion is coupled to a rear surface of the supporting member.

11. The display device according to claim 9 or 10, in, The plurality of first connection portions are located between the coupling member and each corner portion of the sound generating device.

12. The display device according to claim 9 or 10, in, The second connection portion is configured to surround the sound generating device, and the plurality of first connection portions are located between the second connection portion and the sound generating device.

13. The display device according to claim 9 or 10, in, The plurality of first connection portions and the second connection portion are configured as an integral body or a single body.

14. The display device according to claim 9 or 10, in, The length of each of the plurality of first connection portions provided between the sound generating device and the second connection portion is greater than the shortest length between the sound generating device and the second connection portion.

15. The display device according to claim 9 or 10, in, The sound generating device comprises: plate; a frame external to the panel and spaced apart from the support member; a magnet, the magnet being at the plate; a bobbin surrounding the magnet and coupled to the display panel; a coil, the coil being external to the bobbin, The plurality of first connection parts are arranged around the frame to be connected to the frame.

16. The display device according to claim 15, in, The plurality of first connection portions are configured to extend from the frame to the second connection portion.

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