Display device

Abstract

Some embodiments of the present application relate to display technology. In particular, a display device is provided. The display device of the embodiments of the present application comprises a display module, a back shell, a side frame, a first sound box and a first sound guide piece. The first sound box comprises a first loudspeaker and a box shell. The first sound guide piece is arranged between the box shell and the back shell, so that there is a gap between the box shell and the back shell. The first sound guide piece, the box shell and the back shell jointly enclose a first sound cavity to accommodate the first loudspeaker. The first sound guide piece forms at least part of a first sound outlet. The first sound cavity, the first sound outlet and a sound hole provided by the side frame form a sound outlet channel to allow sound waves of the first loudspeaker to be transmitted outward. The first sound guide piece is elastic and can buffer and absorb the vibration of the sound waves, thereby reducing the vibration force of the sound waves on the back shell. The back shell and the first sound guide piece are used as a sound guide structure for the sound waves, without the need for an additional sound guide baffle, which is conducive to reducing the thickness of the sound box and adapting to the limited rear space of the display device.

Description

Technical Field

[0001] Some embodiments of this application relate to display technology. In particular, they relate to a display device. Background Technology

[0002] With the development of display device technology, users have increasingly higher requirements for the visual and auditory effects of display devices such as televisions. As display devices like televisions become thinner, the limited internal space reduces the space available for speakers, making it difficult to achieve good sound quality. Summary of the Invention

[0003] Some embodiments of this application provide a display device to reduce the thickness of a speaker.

[0004] To achieve the above objectives, some embodiments of this application provide a display device comprising:

[0005] The display module is configured to display image information;

[0006] The rear cover is located on the back side of the display module;

[0007] A side frame, connecting the edge between the rear shell and the display module, and a sound outlet is provided on the side frame;

[0008] A first speaker is installed between the display module and the rear shell, and the first speaker includes:

[0009] Box shell,

[0010] A first loudspeaker, wherein the diaphragm of the first loudspeaker is spaced apart from the rear housing;

[0011] A first sound guide is located between the enclosure and the rear shell to allow the enclosure and the rear shell to be elastically connected; the first sound guide, the enclosure, and the rear shell together enclose a first sound cavity, and the first speaker is located within the first sound cavity;

[0012] The first sound guide forms at least a portion of the first sound outlet, which is connected to the first sound cavity; the first sound cavity, the first sound outlet, and the sound hole form a sound outlet channel.

[0013] The display device of some embodiments of this application includes a first sound guide member disposed between a housing and a rear housing, creating a gap between the housing and the rear housing. The first sound guide member, the housing, and the rear housing together enclose a first acoustic cavity to accommodate a first speaker. The first sound guide member forms at least a portion of a first sound outlet. The first acoustic cavity, the first sound outlet, and the sound outlet holes provided on the side frame form a sound outlet channel to allow sound waves from the first speaker to be transmitted outward. The first sound guide member is elastic, capable of buffering and absorbing sound wave vibrations, reducing the vibrational force of the sound waves on the rear housing. Furthermore, by utilizing the rear housing and the first sound guide member as a sound wave guiding structure, no additional sound guide baffle is required, which helps to reduce the speaker cabinet thickness and adapt to the limited rear space of the display device.

[0014] In some embodiments of this application, the first sound guide includes an elastic portion that contacts the housing or the rear housing.

[0015] This design allows the first sound guide to be elastic, enabling a flexible connection between the rear shell and the cabinet.

[0016] In some embodiments of this application, the first sound guide is an elastic element.

[0017] This design not only allows for an elastic connection between the rear shell and the housing, but also utilizes the elastic component structure of related technologies, eliminating the need for additional processing and design.

[0018] In some embodiments of this application, the first sound guide is connected to the housing.

[0019] Thus, the first sound guide component forms part of the first speaker, and in the display device assembly process, there is no need to add an additional connection process for the first sound guide component, ensuring the smooth assembly process of the display device.

[0020] In some embodiments of this application, the first sound guide is connected to the rear shell.

[0021] This design provides ample space for the connection and operation of the first sound guide, resulting in high connection efficiency. Furthermore, when disassembling the rear cover to maintain the internal structure of the display device, the location of the first sound guide on the rear cover reduces the risk of damage caused by improper maintenance.

[0022] In some embodiments of this application, the first sound guide is adhered to the housing.

[0023] This setup ensures a stable and reliable connection, is simple and efficient to operate, and facilitates disassembly and replacement.

[0024] In some embodiments of this application, the first sound guide is adhered to the rear shell.

[0025] This setup ensures a stable and reliable connection, is simple and efficient to operate, and facilitates disassembly and replacement.

[0026] In some embodiments of this application, the first sound guide is sandwiched between the housing and the rear shell, and the housing and / or the rear shell are provided with a limiting part that cooperates with the first sound guide.

[0027] This eliminates the need for an additional connection process for the first sound guide component, thus improving production efficiency. A limiting part is incorporated to restrict the position of the first sound guide component.

[0028] In some embodiments of this application, the first sound guide is formed with a break to partially surround the outside of the first loudspeaker, and the break forms at least a portion of the first sound outlet.

[0029] With the above arrangement, the first sound guide partially surrounds the outside of the first speaker. The break forms at least a portion of the first sound outlet. This arrangement simplifies the structure of the first sound outlet.

[0030] In some embodiments of this application, the first sound guide is a closed ring, and the side of the first sound guide facing the housing is recessed towards the rear housing to form a notch, the notch forming at least a portion of the first sound outlet.

[0031] With this configuration, the first sound guide is a closed ring, which provides high structural stability and facilitates its installation.

[0032] In some embodiments of this application, the housing is formed with a mounting groove for accommodating the first speaker, and the sidewall of the mounting groove is provided with an opening, which together with the first sound guide forms the first sound outlet.

[0033] This design increases the sound output area of ​​the first sound outlet, which is beneficial for improving the sound output effect; and the fact that the first sound outlet has no obstruction structure is also beneficial for improving the sound output effect.

[0034] In some embodiments of this application, the first sound guide includes multiple sound guide strips, which are spliced ​​together to form the first sound guide.

[0035] This design simplifies the installation of the first sound guide component, allowing the use of relevant technologies such as foam strips and sponge strips, eliminating the need for special shape design and processing.

[0036] In some embodiments of this application, the display device further includes a second speaker, which is mounted on the housing and located within the first sound cavity; the display device further includes a second sound guide, which is located within the first sound cavity and contacts the rear shell and the housing respectively; the second sound guide, the rear shell, and the housing together form a second sound cavity, and the second sound guide forms a second sound outlet on one side of the first sound outlet; the second speaker is located within the second sound cavity.

[0037] Some embodiments of this application utilize a second speaker to increase the loudness and sound field width of the display device. By providing a second sound guide within the first sound cavity, a second sound cavity is formed to house the second speaker. This not only separates the second speaker and the first speaker using the second sound cavity but also reduces the possibility of noise generated by resonance between the two within the first sound cavity. Furthermore, the sound emission direction of the second speaker is the same as that of the first speaker, ensuring that sound waves mix and are transmitted simultaneously, thus guaranteeing the acoustic performance of the display device.

[0038] In some embodiments of this application, a third speaker is mounted on the side of the housing facing the rear housing, and the diaphragm of the third speaker is spaced apart from the rear housing.

[0039] Some embodiments of this application utilize a third speaker to increase the loudness and sound field width of the display device. Attached Figure Description

[0040] To more clearly illustrate the implementation methods in some embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0041] Figure 1 This is a schematic diagram of the cross-section of a speaker inside a display device in related technologies;

[0042] Figure 2 This is a schematic diagram illustrating an operational scenario between a display device and a control device according to some embodiments of this application;

[0043] Figure 3 This is a configuration block diagram of a display device according to some embodiments of this application;

[0044] Figure 4 This is a cross-sectional schematic diagram of a display device according to some embodiments of this application;

[0045] Figure 5 Here are exploded views of the speakers according to some embodiments of this application;

[0046] Figure 6 This is a rear view of a speaker according to some embodiments of this application;

[0047] Figure 7 for Figure 6 AA section view in the middle;

[0048] Figure 8 for Figure 6 BB section view in the middle;

[0049] Figure 9 This is a partial cross-sectional view of the speaker and rear shell according to some embodiments of this application;

[0050] Figure 10 This is a schematic diagram of the structure of the first sound guide element in some embodiments of this application;

[0051] Figure 11 This is a partial connection diagram of the first sound guide element in some embodiments of this application;

[0052] Figure 12 This is a schematic diagram showing the connection between the first sound guide and the enclosure in some embodiments of this application;

[0053] Figure 13 This is a schematic diagram showing the connection between the first sound guide and the enclosure in some embodiments of this application;

[0054] Figure 14 This is a cross-sectional schematic diagram of the first sound guide element according to some embodiments of this application;

[0055] Figure 15 This is a cross-sectional schematic diagram of the first sound guide element according to some embodiments of this application;

[0056] Figure 16 This is a front view of a first sound guide element according to some embodiments of this application;

[0057] Figure 17 This is a rear view of a first speaker according to some embodiments of this application;

[0058] Figure 18 A rear view of a display device according to some embodiments of this application without the back cover;

[0059] Figure 19 This is a schematic diagram of the structure of the first speaker of a display device according to some embodiments of this application;

[0060] Figure 20 This is an exploded view of the first speaker of a display device according to some embodiments of this application;

[0061] Figure 21 This is a cross-sectional schematic diagram of a display device according to some embodiments of this application;

[0062] Figure 22This is a schematic diagram showing the arrangement of the sound outlet holes in some embodiments of this application;

[0063] Figure 23 This is a schematic diagram showing the arrangement of the sound outlet holes in some embodiments of this application;

[0064] Figure 24 This is a cross-sectional schematic diagram of a first speaker according to some embodiments of this application;

[0065] Figure 25 This is a partial schematic diagram of the damping component and the rear shell in some embodiments of this application;

[0066] Figure 26 This is a partial schematic diagram of the damping component and the rear shell in some embodiments of this application;

[0067] Figure 27 This is a cross-sectional schematic diagram of a damping component installed in a sound outlet hole according to some embodiments of this application;

[0068] Figure 28 This is a schematic diagram of the structure of the damping component in some embodiments of this application;

[0069] Figure 29 This is an exploded view of a subwoofer enclosure according to some embodiments of this application;

[0070] Figure 30 This is a front view of the rear housing and subwoofer enclosure according to some embodiments of this application;

[0071] Figure 31 for Figure 30 CC section view in the middle;

[0072] Figure 32 This is a schematic diagram of the structure of the second shell of the subwoofer enclosure according to some embodiments of this application;

[0073] Figure 33 This is a schematic diagram of the structure of the rear shell and the subwoofer enclosure in some embodiments of this application;

[0074] Figure 34 This is a schematic diagram of the rear shell and subwoofer enclosure in some other embodiments of this application;

[0075] Figure 35 for Figure 31 Enlarged schematic diagram of region P in the middle;

[0076] Figure 36 This is a schematic diagram showing the positions of the rear shell and the speaker in some embodiments of this application;

[0077] Figure 37 This is a schematic diagram showing the positions of the rear shell and the speaker in some embodiments of this application;

[0078] Figure 38This is a schematic diagram showing the positions of the rear shell and the speaker in some embodiments of this application.

[0079] Explanation of reference numerals in the attached figures:

[0080] 001: Sound guide baffle; 002: Cabinet shell; 003: Speaker; 004: Rear shell; 005: Display module;

[0081] 10: Display device; 20: Smart device; 30: Server; 40: Control device; 41: Tuner / demodulator; 42: Communicator; 43: Detector; 44: External device interface; 45: Controller; 46: Display; 47: Audio output interface; 48: Memory; 49: Power supply; 411: User interface;

[0082] 100: Display module; 200: Rear shell; 201: Sound outlet; 210: Damping component; 211: First mesh layer; 212: Second mesh layer; 230: Outer shell; 240: First sound outlet; 250: Side frame; 251: Sound outlet; 300: First speaker enclosure; 30a: First cabinet; 31: Front cabinet wall; 32: Rear cabinet wall; 33: Circumferential side wall; 301: First sound cavity; 302: First sound outlet; 303: Sound unit; 310: Cabinet shell; 311: Mounting hole; 3 12: Elastic ring; 313: Mounting groove; 3131: Groove sidewall; 314: Limiting part; 320: First loudspeaker; 321: Diaphragm; 330: Second loudspeaker; 340: Third loudspeaker; 400: First sound guide; 401: Break; 402: Notch; 410: Elastic part; 420: Rigid part; 421: Rigid part; 430: First sound guide layer; 440: Second sound guide layer; 500: Second sound guide; 501: Second sound cavity; 502: Second sound outlet; 600: The first Two speakers; 601: Third sound cavity; 610: Second enclosure; 611: First shell; 6110: Opening; 6111: First plate; 6112: First side wall; 6113: First rib; 6114: First connecting post; 6115: Clearance groove; 612: Second shell; 6120: Second sound outlet hole; 6121: Second plate; 6122: Second side wall; 6123: Second rib; 6124: Recess; 6125: Second connecting post; 6126: Raised lines; 62 0: Fourth loudspeaker; 621: Outer cover; 6211: Cover plate; 6212: Connector; 622: Bracket; 623: First cone; 6231: Surround; 6232: Outer connecting edge; 6233: Inner connecting edge; 6234: Recessed groove; 624: Second cone; 625: Spider; 626: Voice coil; 627: U-shaped magnetic yoke; 628: Magnet; 629: Washer; 630: Vibration damping component; 710: Subwoofer enclosure; 720: Surround channel enclosure; 730: Sky speaker enclosure. Detailed Implementation

[0083] To make the objectives, implementation methods and advantages of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments.

[0084] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0085] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a series of components is not necessarily limited to those that are explicitly listed, but may include other components that are not explicitly listed or that are inherent to such product or device.

[0086] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0087] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0088] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0089] With the development of display device technology, users' demands for the visual and auditory effects of display devices such as televisions are gradually increasing. Visually, the trend towards thinner display devices, such as televisions, is in the industry. Auditorily, display devices typically use built-in speakers to output sound signals.

[0090] However, as display devices become thinner, the installation space for speakers on these devices gradually decreases, resulting in increasingly poor sound quality that fails to meet user requirements.

[0091] In related technologies, the speakers used in display devices typically output sound through physical vibration. The volume of the output relies on the diaphragm or vibrating body itself. There needs to be a vibration interval between the diaphragm and the internal components of the display device, and the volume of the diaphragm affects the intensity of the output volume. Therefore, the volume of traditional speakers cannot be reduced, and they must occupy the internal space of the display device, which is not conducive to the thinning of the display device.

[0092] Furthermore, the limited internal space of display devices restricts the size of speakers, thus limiting the intensity of the sound field output by the speakers within the display device. In display devices like televisions, multiple sets of different speakers are typically placed in different locations to create different sound field patterns, thereby increasing the number of speakers required and exacerbating the problem of speakers occupying internal space within the display device.

[0093] For the reasons mentioned above, the speakers used in display devices in related technologies have drawbacks such as occupying space and insufficient output sound field intensity. Therefore, how to solve the aforementioned problems through structural improvements has become one of the important issues in meeting the dual auditory and visual requirements of display devices.

[0094] The sound-generating structure inside the display device is a speaker. For example... Figure 1 The diagram shows a cross-sectional view of a speaker inside a display device in the related art. The speaker is mounted on the side of the rear shell 004 of the display device facing the display module 005.

[0095] The speaker enclosure includes a housing 002, a sound guide baffle 001, and a speaker 003. The housing 002 is located near the display module 005, and the sound guide baffle 001 is located near the rear housing 004. Both the housing 002 and the sound guide baffle 001 are rigid components, and together they enclose a receiving cavity. The speaker 003 is located within the receiving cavity and is mounted on the housing 002. Because the diaphragm of the speaker 003 vibrates towards the rear housing 004, the sound guide baffle 001 guides the sound waves from the speaker 003, for example, guiding the sound waves to the side of the display device.

[0096] There is a gap a between the sound guide baffle 001 and the diaphragm of the speaker 003, and there is also a gap b between the sound guide baffle 001 and the rear shell 004. Furthermore, the sound guide baffle 001 itself has a thickness, which results in a relatively large overall thickness of the speaker enclosure.

[0097] Because the bezels of related display devices are narrow, there is insufficient space to accommodate speakers. Therefore, the speakers must be placed on the back of the display module. The speaker diaphragm has a large diameter, and the plane containing the diaphragm diameter is parallel to the display surface of the display device. Therefore, the diaphragm requires a certain vibration interval, making interval 'a' indispensable. Since the speaker emits sound from the rear, a guiding component (e.g., a sound guide baffle 001) is necessary to guide the sound waves, meaning the guiding component cannot be omitted. To prevent the guiding component from contacting other components of the display device (e.g., the rear shell) and generating noise, a gap must also be reserved between the guiding component and other components, meaning interval 'b' cannot be omitted. Thus, the speaker needs to provide a cavity to mount the speaker and provide space for the vibration interval and the guiding component, resulting in a limitation on the speaker's thickness.

[0098] The researchers of this application conducted a detailed study on the components in the speaker structure that enable vibration and sound generation, and re-analyzed the necessity of each component for the realization of the speaker function: For the speaker structure, the loudspeaker is an essential sound-generating element; it is necessary to provide a mounting position for the loudspeaker; it is necessary to form a sound cavity and a sound outlet on the side, and to provide vibration interval for the loudspeaker.

[0099] Based on the analysis, the researchers of this application believe that the appendix Figure 1 The sound guide baffle 001 can be omitted, and omitting the sound guide baffle 001 saves on the thickness of the sound guide baffle itself and the spacing b, which greatly contributes to reducing the thickness of the speaker enclosure. So, how is the sound wave guiding structure formed?

[0100] The researchers of this application continued to conduct further research on the display device and its speaker structure related to this technology. The back cover of the display device, as an external component, serves to shield the internal structure of the display device, and its structural stability is crucial. Therefore, there is usually a gap between the back cover and the speaker, which not only prevents the sound wave vibration of the speaker from affecting the structural stability of the whole device, but also reduces the possibility of noise generated by the vibration of the back cover.

[0101] The researchers of this application continued to analyze the speaker structure in related technologies, such as Figure 1 As shown, the sound guide baffle 001 is opposite to and spaced apart from the rear shell 004. At least a portion of the rear shell 004 is plate-shaped, similar in structure to the sound guide baffle 001. Therefore, the developers of this application believe that the rear shell 004 can replace the sound guide baffle 001 to guide sound waves, allowing sound to be emitted from the side of the speaker. However, this raises a new problem: the rear shell is subjected to sound wave vibrations; how can the possibility of noise generation be reduced while ensuring acoustic performance?

[0102] The researchers conducted experiments by directly connecting the enclosure and the rear shell, and found that the rear shell vibrated significantly, which not only affected the overall structural stability of the device but also resulted in poor acoustic performance. This is because both the enclosure and the rear shell are rigid components, and under vibration, they make hard contact, generating noise. Furthermore, both the enclosure, as the mounting component for the speaker, and the rear shell, as an exterior component, need to possess rigidity characteristics.

[0103] Therefore, the developers of this application considered using an elastic component to achieve an elastic connection between the enclosure and the rear shell. Considering the need for sealing of the cavity except for the sound outlet, and to reduce the possibility of sound leakage from other areas, the developers of this application arranged an elastic sound guide between the enclosure and the rear shell. The rear shell, the sound guide, and the enclosure together form a sound cavity with a sound outlet. The sound guide seals off the area between the enclosure and the rear shell except for the sound outlet, reducing the possibility of sound leakage from the sound cavity and maximizing the concentration of sound waves from the sound outlet. This design improves acoustic performance. When sound waves are transmitted to the rear shell, the elasticity of the sound guide allows it to absorb some of the sound wave energy, reducing vibration and ensuring the stability of the rear shell connection structure. This also reduces the likelihood of noise generated by rear shell vibration, ensuring better acoustic performance. Furthermore, when sound waves are transmitted to the sound guide, it not only guides the sound waves to the sound outlet but also absorbs some of the sound wave energy, reducing sound wave reflection and resulting in a smoother response and better sound quality across all frequency bands.

[0104] By eliminating the sound guide baffle, the thickness of the sound guide baffle is reduced, the gap between the sound guide baffle and the rear shell is reduced, and the thickness of the speaker is decreased.

[0105] Therefore, the speaker of the display device of this application is not only thin, which is conducive to the thin and light design of the display device, but also has good sound quality.

[0106] The technical solutions of some embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0107] The display device provided in this application can have various implementation forms, such as a television, a smart television, a monitor, an electronic bulletin board, an electronic table, etc. Figure 2 and Figure 3 This is one specific embodiment of the display device of this application.

[0108] Figure 2 This is a schematic diagram illustrating an operational scenario between a display device and a control device according to an exemplary embodiment of this application. Figure 2 As shown, a user can operate the display device 10 via the smart device 20 or the control device 40. In some embodiments, the display device 10 also communicates with the server 30. The display device 10 may communicate via a local area network (LAN), a wireless local area network (WLAN), and other networks. The server 30 can provide various content and interactive features to the display device 10. The server 30 may be a cluster or multiple clusters, and may include one or more types of servers.

[0109] Figure 3 This is a schematic diagram of the device structure shown in an example, such as... Figure 3 In some embodiments, the display device 10 includes a tuner / demodulator 41; the tuner / demodulator 41 receives broadcast television signals via wired or wireless means, and demodulates audio and video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.

[0110] In some embodiments, the display device 10 includes a communicator 42; the communicator 42 is a component configured to communicate with external devices or servers according to various communication protocol types. For example, the communicator 42 may include at least one of a Wi-Fi module, a Bluetooth module, a wired Ethernet module, other network communication protocol chips or near-field communication protocol chips, and an infrared receiver. The display device 10 can establish the transmission and reception of control signals and data signals with the control device 40 or the server 30 through the communicator 42.

[0111] In some embodiments, the display device 10 includes a detector 43; the detector 43 is configured to acquire signals from the external environment or to interact with the outside world. For example, the detector 43 includes a light receiver configured to acquire a sensor of ambient light intensity; or, the detector 43 includes an image acquisition device, such as a camera, which can be configured to acquire external environmental scenes, user attributes, or user interaction gestures; or, the detector 43 includes a sound acquisition device, such as a microphone, configured to receive external sounds.

[0112] In some embodiments, the display device 10 includes an external device interface 44; the external device interface 44 may include, but is not limited to, one or more interfaces such as: High Definition Multimedia Interface (HDMI), analog or data high-definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, etc. It may also be a composite input / output interface formed by the above multiple interfaces.

[0113] In some embodiments, the display device 10 includes a display 46; the display 46 includes a display screen component configured to present an image, a driving component for driving image display, a component configured to receive image signals output from a controller, and a user interface for displaying video content, image content, and a menu control interface. The display 46 may be a liquid crystal display, an OLED display, or a projection display, and may also be a projection device and a projection screen.

[0114] In some embodiments, the display device 10 includes an audio output interface 47; in some embodiments, the display device 10 includes a memory 48; in some embodiments, the display device 10 includes a power supply 49.

[0115] In some embodiments, the display device 10 includes at least one of the user interfaces 411. The user interface 411 may be configured to receive control signals from the control device 40 (e.g., an infrared remote control).

[0116] In some embodiments, the controller includes a processor; in some embodiments, the controller includes a video processor; in some embodiments, the controller includes an audio processor; in some embodiments, the controller includes a graphics processor; in some embodiments, the controller includes RAM; in some embodiments, the controller includes ROM.

[0117] In some embodiments, the controller includes a first interface to an nth interface configured as input / output signals.

[0118] In some embodiments, the controller 45 and the tuner 41 may be located in different separate devices, that is, the tuner 41 may also be located in an external device of the main device where the controller 45 is located, such as an external set-top box.

[0119] In some embodiments, the display device 10 includes a controller 45; the controller 45 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 45 controls the overall operation of the display device 10. For example, in response to receiving a user command configured to select a UI object to be displayed on the display 46, the controller 45 can perform operations related to the object selected by the user command.

[0120] In some embodiments, the controller includes at least one of a central processing unit (CPU), a video processor, an audio processor, a graphics processing unit (GPU), RAM (random access memory), ROM (read-only memory), a first to an nth interface configured as input / output, a communication bus, etc.

[0121] Some embodiments of this application provide a display device 10, which may be a liquid crystal display device, an OLED display device, a laser display device, etc. The display device 10 has a top side, a ground side, a left side, a right side, a front side, and a rear side. The left and right sides of the display device 10 refer to the user's left and right sides when the user is facing the display surface of the display device 10. Correspondingly, the side of the display device 10 facing the user is the front side, the side of the display device 10 away from the user is the rear side, the top side of the display device 10 is the top side, and the bottom side of the display device 10 is the ground side.

[0122] Combination Figure 4 Some embodiments of this application provide a display device 10 including a display module 100, which is used to display image information such as text and images. The display module 100 has a display side and a back side opposite to each other along the thickness direction of the display device, wherein the display side of the display module 100 faces the front side of the display device.

[0123] In some embodiments, the display module 100 includes a display panel configured to display image information such as text and images. For example, the display panel may be a liquid crystal display panel.

[0124] In some embodiments, the display module 100 further includes a backlight assembly located on one side of the display panel, the backlight assembly being configured to provide backlight to the display panel so that the display panel can modulate the backlight as needed to display different images.

[0125] The backlight assembly may include multiple light panels, and the light source of the light panels may be a light-emitting diode (LED), a sub-millimeter light-emitting diode (Mini LED), or a micro-light-emitting diode (Micro LED), etc.

[0126] In some embodiments, the display device 10 includes a rear housing 200 located on the back side of the display module 100. The rear housing 200 can be the outer casing of the display device 10, and the material of the rear housing 200 can be plastic, metal, etc.

[0127] There may be a gap between the back cover 200 and the display module 100, so that the control devices, cables and other components of the display device 10 can be placed between the back cover 200 and the display module 100, thereby simplifying the appearance of the display device.

[0128] In some embodiments, the display device 10 includes a first speaker 300, which is a sound-emitting component of the display device 10 and is disposed between the rear cover 200 and the display module 100.

[0129] Continue to refer to Figure 4 In some embodiments, the first speaker 300 includes a first loudspeaker 320, which is a sound-emitting element of the first speaker 300.

[0130] In some embodiments, the first speaker 320 is a midrange speaker. For example, the sound wave frequency range of the first speaker 320 is 200Hz to 8kHz, or the sound wave frequency range of the first speaker 320 is 200Hz to 10kHz.

[0131] In some embodiments, the first speaker 320 is a full-range speaker or a mid-to-high frequency speaker. For example, the sound wave frequency range of the first speaker 320 is 200Hz to 20kHz.

[0132] For example, the first loudspeaker 320 may include a diaphragm, a magnet assembly, a bracket, a frame, a voice coil, etc. The bracket is used to mount the diaphragm, magnet assembly, frame, and voice coil, etc. The diaphragm vibrates in cooperation with the magnet assembly and the voice coil, thereby producing sound.

[0133] In some embodiments, the first speaker 300 includes a housing 310, which is the outer shell of the first speaker 300 and provides a mounting position for the first speaker 320.

[0134] In some embodiments, the housing 310 can be an injection-molded housing, for example, the housing 310 is a plastic housing, which is injection molded and simple to manufacture.

[0135] In some embodiments, the enclosure 310 can be a metal enclosure with high structural strength; with the same structural strength, the metal enclosure 310 can be thinner, which helps to reduce the thickness of the first speaker 300; moreover, the metal enclosure 310 can contact the magnetic assembly of the first speaker 320, which helps to increase the heat dissipation area of ​​the first speaker 320, thereby improving the heat dissipation effect of the first speaker 320.

[0136] Of course, in some implementations, the housing 310 may include a metal housing portion and a non-metal housing portion, and the metal housing portion may be bonded to the non-metal housing portion.

[0137] In some embodiments, the non-metallic shell portion can be an injection-molded shell portion, such as a plastic shell portion. The metal shell portion serves as an insert during the injection molding of the injection-molded shell portion and is integrally formed with the injection-molded shell portion. This not only results in high structural strength, but also allows the metal shell portion of the housing 310 to contact the magnetic assembly of the first speaker 320. For example, the metal shell portion contacts the magnetic yoke of the first speaker 320, which helps to improve the heat dissipation effect of the first speaker 320.

[0138] In some embodiments, the housing 310 can be installed on the rear housing 200, providing ample installation space and flexible connection methods.

[0139] In some embodiments, the housing 310 is mounted on the back panel of the display device, which is located between the backlight assembly and the rear cover 200. The back panel provides a mounting position for the backlight assembly. This configuration allows the housing 310 to be mounted on the back panel before assembling the rear cover 200, simplifying the assembly of the display device. It also facilitates electrical connection between the first speaker 300 and the main control board of the display device, and allows for easy and convenient disassembly without disassembling the first speaker 300 when removing the rear cover 200.

[0140] In some embodiments, the enclosure 310 and the back panel are elastically connected, and the acoustic vibration force on the enclosure 310 is converted into the elastic force between the enclosure 310 and the back panel. This can avoid noise caused by rigid contact between the enclosure 310 and the back panel, reduce vibration noise between the enclosure 310 and the back panel, and improve the acoustic effect of the display device 10.

[0141] For example, in combination Figure 5 The housing 310 is provided with fixing holes 311. Screws, bolts and other fasteners pass through the fixing holes 311 and are threaded to the threaded holes provided on the back plate. An elastic washer is provided between the fastener and the housing 310, and an elastic washer is provided between the housing 310 and the back plate to achieve an elastic connection between the housing 310 and the back plate.

[0142] For example, in combination Figure 5 The housing 310 has a fixing hole 311, and an elastic ring 312 is installed inside the fixing hole 311. The peripheral side of the elastic ring 312 has an annular groove, so that the elastic ring 312 fits onto the edge of the fixing hole 311. The elastic ring 312 has a through hole, so that the fastener passes through the through hole and is fixedly connected to the rear shell 200. In this way, not only can the housing 310 and the back plate be elastically connected in the axial direction of the fixing hole 311, but the housing 310 and the fastener can also be elastically connected in the circumferential direction of the fixing hole 311, avoiding rigid contact between the housing 310 and the back plate, and also avoiding rigid contact between the housing 310 and the fastener.

[0143] In related technologies, for example Figure 1 As shown in the structure, the housing 002 is mounted on the rear housing 004. Due to the presence of the sound guide baffle 001, the gap between the housing 002 and the sound guide baffle 001 is relatively large. The height of the column forming the threaded hole on the rear housing 004 is relatively large. Not only does it require more material, but it also makes molding and demolding difficult when injection molding the rear housing 004.

[0144] Compared to related technologies, the gap between the housing 310 and the rear housing 200 in some embodiments of this application is smaller, which helps to reduce the difficulty of fasteners and threaded hole connections and improve assembly efficiency; moreover, the height of the column forming the threaded hole on the rear housing 200 is smaller, which reduces material usage and also helps to improve structural stability; when the rear housing 200 is an injection molded part, it helps to reduce molding difficulty.

[0145] In some embodiments, the enclosure 310 is provided with a plurality of mounting holes 311 to improve the stability and reliability of the enclosure 310 installation. The plurality of mounting holes 311 are located at the edge of the enclosure 310 to avoid affecting the arrangement of the speaker.

[0146] For example, when the enclosure 310 is rectangular, fixing holes 311 are provided at the four top corners of the enclosure 310. While ensuring the installation stability of the enclosure 310, a large amount of space can be reserved in the middle of the enclosure 310 to flexibly install the speaker.

[0147] For example, a plurality of fixing holes 311 are provided on the side edge of the housing 310. The fixing holes 311 can also be located inside the first sound cavity 301, as long as they do not affect the installation of the first speaker 320 and the conduction of sound waves.

[0148] There are several ways to mount the first speaker 320 onto the enclosure 310. For example, the speaker frame can be fixed to the enclosure 310 with screws, which is a stable and reliable method. Alternatively, the speaker frame can be snapped or glued to the enclosure 310, which is a simple method.

[0149] In some embodiments, the first speaker 320 is mounted on the side of the housing 310 facing the rear housing 200, such that the first speaker 320 is directly opposite the rear housing 200.

[0150] Since the diaphragm needs to vibrate back and forth to produce sound, vibration space needs to be reserved for the diaphragm of the first speaker 320. In some embodiments of this application, there is a gap between the diaphragm of the first speaker 320 and the rear shell 200, so that the diaphragm vibrates back and forth within the gap to produce sound.

[0151] The diaphragm of the first speaker 320 faces the rear shell 200 of the display device 10, causing the first speaker 320 to emit sound towards the rear of the display device 10, resulting in poor acoustic performance of the display device 10 and affecting the auditory experience.

[0152] Therefore, in some embodiments, the display device 10 includes a first sound guide 400 for guiding rearward sound waves to the side, so that the sound waves are emitted from the side of the display device 10, such as the top side, bottom side, left side or right side of the display device 10, to improve the acoustic effect of the display device 10.

[0153] The first sound guide 400 is located between the enclosure 310 and the rear enclosure 200. The first sound guide 400 contacts the enclosure 310 and the rear enclosure 200 respectively. The first sound guide 400, the enclosure 310 and the rear enclosure 200 together form the first sound cavity 301, providing installation space for the first speaker 320.

[0154] In some embodiments, combined with Figures 4 to 7 A mounting groove 313 is formed on the enclosure 310, and the mounting groove 313 has a first opening facing the rear shell 200; the first speaker 320 is installed in the mounting groove 313, so that the thickness of the first speaker 320 occupies the thickness space of the enclosure 310, which helps to reduce the thickness of the first speaker 300.

[0155] For example, the enclosure 310 is plate-shaped, and a mounting groove 313 for accommodating the first speaker 320 is formed on the plate structure. This arrangement makes the structure of the enclosure 310 simple and easy to manufacture and install.

[0156] In some embodiments, a receiving groove is formed on the rear shell 200 to reserve installation space for the first speaker 320. The receiving groove is formed when the shell 310 is integrally formed, without the need for additional processes. The shell 310 is plate-shaped, making the structure simpler.

[0157] In some embodiments, the enclosure 310 is plate-shaped, and the portion of the rear shell 200 opposite to the enclosure 310 is plate-shaped. The space between the enclosure 310 and the rear shell 200, separated by the first sound guide 400, forms the mounting space for the first speaker 320.

[0158] In some embodiments of this application, the first loudspeaker 320 is located within the first acoustic cavity 301, and the first sound guide 400 forms at least a portion of the first sound outlet 302, which communicates with the first acoustic cavity 301. Thus, at least a portion of the sound waves from the first loudspeaker 320, constrained by the first sound guide 400 and the rear shell 200, are transmitted through the first sound outlet 302, achieving side-emitting sound from the first speaker 300.

[0159] The side-emitting sound of the first speaker 300 can be understood as the first speaker 300 having a front side and a rear side along the thickness direction of the display device, and the first sound outlet 302 being disposed on other sides of the first speaker 300 besides the front side and the rear side, such as the bottom side.

[0160] Therefore, in the display device of this application embodiment, the first speaker 300 eliminates the sound guide baffle in the existing speaker, and uses the shell 310, the first sound guide 400 and the rear shell 200 to jointly enclose and form a first sound cavity 301 to accommodate the first speaker 320. The diaphragm of the first speaker 320 emits sound towards the rear shell 200, and the first sound cavity 301 guides the sound waves to the first sound outlet 302 so that the sound waves are transmitted, ensuring the sound effect of the first speaker 300. Since the sound guide baffle is eliminated, the thickness of the sound guide baffle is saved, the gap between the sound guide baffle and the rear shell is saved, and the thickness of the speaker is reduced.

[0161] Combination Figure 6 The first sound guide 400 is located outside the first speaker 320, so that the first speaker 320 is located inside the first sound cavity 301.

[0162] In some embodiments, the first sound guide 400 may be disposed only around the outside of the diaphragm of the first speaker 320, in which case the first sound guide 400 may contact the frame of the first speaker 320.

[0163] In some embodiments, the first sound guide 400 is disposed in the mounting groove 313. This arrangement allows for a thicker first sound guide 400 with more elastic force; it also allows for a larger mounting groove 313, which can flexibly adjust the number and spacing of the first speakers 320 according to the performance of the display device.

[0164] In other embodiments, the first sound guide 400 is located outside the mounting groove 313. This arrangement allows for a smaller mounting groove 313, ensuring the structural strength of the housing 310 and reducing the possibility of deformation. Furthermore, the location of the first sound guide 400 outside the mounting groove 313 facilitates installation and reduces the possibility of damage to the first speaker 320 during installation.

[0165] In some embodiments, the first sound guide 400 forms a first sound outlet 302 by setting a notch or a break, etc., which is simple in structure.

[0166] In other embodiments, the first sound guide 400 and the housing 310 together define the first sound outlet 302, which helps to increase the sound outlet area of ​​the first sound outlet 302.

[0167] Continue to refer to Figure 5 and Figure 6In some embodiments, the first sound guide 400 has a break 401, and the first sound guide 400 is an open annular shape, such that the first sound guide 400 partially surrounds the outside of the first speaker 320. The break 401 forms at least a portion of the first sound outlet 302. This configuration allows the first sound guide 400 to be formed by splicing together multiple strip-shaped sound guides, while simultaneously forming the break 401. This not only simplifies the formation structure of the first sound guide 400, eliminating the need for additional mold design and processing, but also improves the flexibility of the size and shape of the first sound guide 400, enabling the formation of sound cavities of different sizes and shapes.

[0168] In some embodiments, the length of the break 401 formed by the first sound guide 400 is equal to the diameter of the diaphragm of the first speaker 320. This arrangement allows the sound waves of the first speaker 320 to be transmitted through the break 401, while also preventing the break 401 from being too small and causing the first sound guide 400 on both sides of the break 401 to block the diaphragm and affect the sound output efficiency.

[0169] In some embodiments, the length of the break 401 formed by the first sound guide 400 may deviate to a certain extent from the diaphragm diameter of the first loudspeaker 320.

[0170] For example, the length of the break 401 is slightly larger than the diameter of the diaphragm, which will not block the transmission of sound waves, and will also prevent the sound waves from being dispersed due to the break 401 being too large, as well as from affecting the structural strength of the first sound guide 400.

[0171] For example, the length of the break 401 is slightly smaller than the diameter of the diaphragm, so its blocking effect on sound waves can be ignored, ensuring the structural strength and supporting function of the first sound guide 400.

[0172] In some embodiments, the mounting groove 313 extends to one side edge of the housing 310, for example... Figure 7 and Figure 8 The bottom side, as shown, forms a second opening in the mounting groove 313 facing the side of the enclosure 310. Here, the side of the enclosure 310 refers to the side other than the front and rear sides. This arrangement allows the first speaker 320 to be positioned close to the edge of the enclosure 310, facilitating lateral sound output.

[0173] In some embodiments, the second opening of the mounting groove 313 is at least partially opposite to the break 401 of the first sound guide 400. With this arrangement, the second opening and the break 401 together form the first sound outlet 302, which can increase the sound outlet area of ​​the first sound outlet 302 and improve the sound output effect; and the first sound outlet 302 has no obstruction structure, which is beneficial to improving the sound output effect.

[0174] For example, the two ends of the first sound guide 400 are respectively located at the two ends of the second opening, so that the break 401 of the first sound guide 400 is opposite to the second opening. This not only ensures the sound outlet area, but also prevents dust and other impurities from entering the sound cavity in large quantities due to an excessively large sound outlet area.

[0175] In some embodiments of this application, the mounting groove 313 formed on the enclosure 310 omits some of its sidewalls. For example, when the mounting groove 313 is a rectangular groove, it has a bottom wall and three side walls, with the bottom wall facing the rear shell 200; the mounting groove 313 has no side wall on the side corresponding to the first sound outlet 302, which not only simplifies the structure of the enclosure 310 but also facilitates its processing.

[0176] For the structure with a sound outlet on the side wall of the mounting slot 313, the limited size of the side wall and the high precision requirements result in a high difficulty and cost in processing the enclosure. In order to facilitate the processing of the sound outlet on the side wall, some areas of the side wall are thickened to obtain sufficient processing space for the sound outlet, which contradicts the original design intention of the thin speaker in some embodiments of this application.

[0177] In some embodiments of this application, a mounting groove 313 is provided in the housing 310 to accommodate part of the thickness of the first speaker 320; and a flexible first sound guide 400 is provided between the housing 310 and the rear housing 200 to accommodate part of the thickness of the first speaker 320, so that no separate thickness gap is reserved for the first speaker 320; and the rear housing 200 is used as a sound wave guiding structure to achieve side sound output while further reducing the thickness of the speaker box, which is suitable for the limited rear space of the display device 10.

[0178] Furthermore, in some embodiments of this application, the first sound guide 400 is used to form the first sound outlet 302, and the sound outlet area of ​​the first sound outlet 302 is increased by omitting part of the side wall of the mounting groove 313, thereby improving the sound output effect; moreover, it is beneficial to increase the area of ​​the mounting groove 313, thereby increasing the installation space of the speaker and improving the convenience of speaker installation.

[0179] In some embodiments of this application, the first sound guide 400 is elastic, allowing for an elastic connection between the housing 310 and the rear housing 200. This also allows the thickness of the first sound cavity 301 in the front-rear direction of the display device to elastically increase or decrease, absorbing some of the sound wave energy on the rear housing 200, reducing the vibration force of the rear housing 200, and ensuring the stability of the rear housing 200 connection structure. This helps reduce the possibility of noise generated by the vibration of the rear housing 200, ensuring acoustic performance. Furthermore, the first sound guide 400 keeps the housing 310 and the rear housing 200 closed at all locations except for the first sound outlet 302. That is, the first sound guide 400 acts as a seal, reducing the possibility of sound leakage from the first sound cavity 301 and maximizing the concentration of sound waves from the first sound outlet 302, further improving the sound effect.

[0180] Refer again Figure 4 In some embodiments of this application, the display device further includes a side bezel 250, which is connected to the edge between the rear housing 200 and the display module 100. A sound outlet 251 is provided on the side bezel 250.

[0181] The first sound cavity 301, the first sound outlet 302, and the sound outlet 251 form a sound outlet channel, through which the sound waves generated by the first speaker 320 are transmitted to the outside of the display device.

[0182] The side bezel 250 has the same shape as the display device, and is formed by a bottom side, a top side, a left side, and a right side. When the sound outlet 251 is located on the bottom side of the side bezel 250, sound is emitted from the bottom of the display device, such as the center channel of the display device; when the sound outlet 251 is located on the top side of the side bezel 250, sound is emitted from the top of the display device, such as the sky channel of the display device; when the sound outlet 251 is located on the left side of the side bezel 250, sound is emitted from the left side of the display device, such as the left channel or surround channel of the display device; when the sound outlet 251 is located on the right side of the side bezel 250, sound is emitted from the right side of the display device, such as the right channel or surround channel of the display device.

[0183] In some embodiments, the side frame 250 and the rear shell 200 are two independent components, so the side frame 250 and the rear shell 200 can be processed separately, which simplifies the processing method.

[0184] In other embodiments, the side frame 250 and the back cover 200 are integral parts, that is, the circumferential edge of the back cover 200 is bent and extended toward the display module 100 to form the side frame 250. In this way, the side frame 250 can be directly formed by the integral molding of the back cover 200, reducing the assembly process of the side frame 250 and improving assembly efficiency.

[0185] Combination Figure 9, in some embodiments, the first sound guide member 400 is a closed ring, and a surface of the first sound guide member 400 facing the case 310 is recessed toward the rear case 200 to form a notch 402; the notch 402 communicates with the first sound cavity 301, and forms at least part of the first sound outlet 302. With this arrangement, the first sound guide member 400 is a closed ring with high structural stability, which facilitates the installation of the first sound guide member 400.

[0186] When the mounting groove 313 is provided on the case 310, the notch 402 is opposite to the second opening of the mounting groove 313, and a part of the first sound guide member 400 is opposite to the mounting groove 313, and the notch 402 and the second opening of the mounting groove 313 together form the first sound outlet 302.

[0187] combining again Figure 5 and Figure 6 , in some embodiments, the first sound guide member 400 is an integrated member, which is convenient for improving the sealing performance of the first sound guide member 400, and avoids the problem that local gaps in the first sound cavity 301 cause sound wave leakage and induce noise.

[0188] In some other embodiments, the first sound guide member 400 comprises a plurality of sections of sound guide strips, and the plurality of sections of sound guide strips are spliced to form the first sound guide member 400, which surrounds the outer side of the first speaker 320. With this arrangement, the installation of the first sound guide member 400 is simple, and foam strips, sponge strips and the like in the related art can be used, without special shape design and processing.

[0189] For the first sound guide member 400 formed with a broken opening 401, it can be formed without providing additional sound guide strips; for the first sound guide member 400 formed with a notch 402, the notch 402 can be formed only by reducing the thickness of the sound guide strip at the corresponding position.

[0190] In some embodiments, the sound guide strip is linear, which can further improve the convenience of installation, and facilitate forming the first sound cavity 301 with a regular shape, thereby facilitating matching the volume of the first sound cavity 301 with the performance of the first speaker 320.

[0191] In some embodiments, the sound guide strip is curved, for example, arc-shaped, which can match the outer shape of the first speaker 320 and facilitate the concentrated transmission of sound waves.

[0192] as shown in the appended Figure 5 and Figure 6 , the first sound cavity 301 is in an open rectangular shape, the first sound guide member 400 is generally in a "匚" shape, and one side thereof forms the first sound outlet 302. This shape is regular and facilitates installation and design.

[0193] This is not a limitation on the shape of the first sound cavity 301, for example, the first sound cavity 301 can also be circular, oval, polygonal or irregular shape, etc.

[0194] In some embodiments, combined again Figure 5 and Figure 6 The inner surface of the first sound guide 400 facing the first sound cavity 301 is a plane, which makes the structure of the first sound guide 400 regular and simple, and easy to form by splicing strip sound guide segments.

[0195] In other embodiments, such as Figure 10 As shown, at least a portion of the inner surface of the first sound guide 400 facing the first sound cavity 301 is a curved surface, such as an arc surface. This arrangement, which makes at least a portion of the inner surface of the first sound cavity 301 curved, can reduce the vertical reflection of sound waves, thereby reducing the peaks and valleys of sound waves and improving the smoothness of sound waves.

[0196] In some embodiments, the inner surface of the first sound guide 400 opposite to the first sound outlet 302 is curved.

[0197] In some implementations, refer again Figure 4 The first sound guide 400 is connected to the rear cover 200. For example, the first sound guide 400 is connected before the rear cover 200 is assembled, which provides ample operating space and high connection efficiency. Moreover, when disassembling the rear cover 200 to maintain the internal structure of the display device, the location of the first sound guide 400 on the rear cover 200 reduces the risk of damage to the first sound guide 400 due to improper maintenance.

[0198] For example, the first sound guide 400 is adhered to the rear shell 200. For instance, the first sound guide 400 has its own adhesive backing and adheres to the rear shell 200; or, for another example, the first sound guide 400 is adhered to the rear shell 200 using double-sided tape, glue, or similar adhesive. This configuration provides a stable and reliable connection, ample operating space, high efficiency, and facilitates disassembly and replacement. Furthermore, during the assembly of the display device, it is easy to adjust the position of the first sound guide 400 to create a sound cavity volume with better sound quality.

[0199] In some other implementations, the first sound guide 400 is connected to the housing 310, so that the first sound guide 400 constitutes part of the first speaker 300. In the display device assembly process, there is no need to add an additional connection process for the first sound guide 400, thus ensuring the assembly process of the display device.

[0200] For example, the first sound guide 400 is bonded to the enclosure 310. For instance, the first sound guide 400 has its own adhesive backing and is bonded to the enclosure 310; or, for example, the first sound guide 400 is bonded to the enclosure 310 using double-sided tape, glue, etc. This configuration provides a stable and reliable connection, simple and efficient operation, and facilitates disassembly and replacement. Furthermore, since the first sound guide 400 is bonded to the enclosure 310, forming part of the speaker enclosure, no additional positioning and bonding operations of the first sound guide 400 on the rear shell 200 are required during the assembly of the display device, thus improving the overall assembly efficiency. Additionally, the more accurate positioning of the first sound guide 400 on the enclosure 310 facilitates the formation of the desired sound cavity area, reducing the possibility of the sound cavity volume being affected by misalignment of the first sound guide 400.

[0201] In some other embodiments, the first sound guide 400 is connected to both the enclosure 310 and the rear enclosure 200, and the connection method is stable and reliable. By setting the connection method between the enclosure 310 and the rear enclosure 200, the first speaker 300 can be completely removed from the rear enclosure 200 for maintenance of the display device; or, if the first sound guide 400 is made of materials such as sponge or foam, the rear enclosure 200 can be detached by damaging the first sound guide 400; during reassembly, the first sound guide 400 can be replaced.

[0202] In some embodiments, such as Figure 11 As shown, the first sound guide 400 includes a first sound guide layer 430 and a second sound guide layer 440 stacked together. The first sound guide layer 430 is connected to the enclosure 310, for example, the first sound guide layer 430 is bonded to the enclosure 310; the second sound guide layer 440 is connected to the rear enclosure 200, for example, the second sound guide layer 440 is bonded to the rear enclosure 200. The first sound guide layer 430 and the second sound guide layer 440 are in contact, thereby forming the first sound guide 400. This arrangement can ensure the stability of the connection of the first sound guide 400 and improve the guiding effect of the first sound guide 400 on the sound waves, so that the sound waves are transmitted from the first sound outlet.

[0203] In this design, the first sound-guiding layer 430 and the second sound-guiding layer 440 have equal areas in a plane parallel to the display surface. When the first speaker 300 is mounted on the rear shell 200, the first sound-guiding layer 430 and the second sound-guiding layer 440 are in contact. Alternatively, the area of ​​one sound-guiding layer may be larger than the area of ​​the other, for example, the area of ​​the first sound-guiding layer 430 may be larger than the area of ​​the second sound-guiding layer 440; or, for another example, the area of ​​the second sound-guiding layer 440 may be larger than the area of ​​the first sound-guiding layer 430. This ensures that the two sound-guiding layers are in contact and avoids misalignment caused by assembly errors, processing precision, etc.

[0204] In some embodiments, the first sound guide 400 is integrally mounted on the housing 310, or the first sound guide 400 is integrally mounted on the rear housing 200, which is a relatively simple installation method.

[0205] In other embodiments, a portion of the first sound guide 400 is connected to the housing 310, and another portion of the first sound guide 400 is connected to the rear housing 200. For example, when the first sound guide 400 includes multiple sound guide strips, some of the sound guide strips are connected to the housing 310, and some are connected to the rear housing 200. This arrangement allows for flexible connection of the first sound guide 400, facilitating flexible operation during display device assembly.

[0206] For example, if a portion of the first sound guide 400 connected to the rear shell 200 is damaged or fails due to improper transportation, a connecting part of the sound guide strip on the rear shell 200 can be used to form the first sound guide 400 together with the sound guide strip on the rear shell 200, eliminating the need to return the entire first speaker 300 to the factory for repair and improving production efficiency.

[0207] In some embodiments, the first sound guide 400 is sandwiched between the housing 310 and the rear housing 200, so that the first sound guide 400 is compressed between the housing 310 and the rear housing 200. This eliminates the need for an additional connection process for the first sound guide 400, which helps to improve production efficiency.

[0208] When installed in this way, the position of the first sound guide 400 is easily moved, requiring repeated adjustments. Therefore, in some embodiments, a combination of... Figure 12 and Figure 13 The housing 310 is provided with a limiting part 314 that cooperates with the first sound guide 400 to limit the position of the first sound guide 400.

[0209] For example, refer to Figure 12 The limiting part 314 may be a groove provided on the housing 310; for example, refer to Figure 13 The limiting part 314 can be a protrusion or a protrusion on the enclosure 310, which not only limits the position of the first sound guide 400, but also helps to improve the structural strength of the enclosure 310.

[0210] Of course, in some embodiments, the limiting part 314 can be provided on the rear shell 200, so that the limiting part 314 can be integrally formed when the rear shell 200 is formed, without the need for additional processes.

[0211] In some other embodiments, the housing 310 and the rear housing 200 are respectively provided with limiting parts 314 that cooperate with the first sound guide 400, thereby improving the reliability of limiting the position of the first sound guide 400, reducing assembly difficulty, and improving assembly efficiency.

[0212] Recombined Figure 5 and Figure 6 The first sound guide 400 makes the enclosure 310 and the rear enclosure 200 elastically connected. Thus, when the rear enclosure 200 is subjected to vibration sound waves, the first sound guide 400 is deformed by the vibration force and absorbs the vibration force, avoiding noise generated by the rigid contact between the rear enclosure 200 and the enclosure 310.

[0213] In some implementations, at least a portion of the first sound guide 400 is elastic. For example... Figure 14 and Figure 15 As shown, the first sound guide 400 includes an elastic portion 410. The elastic portion 410 can contact the enclosure 310 or the rear enclosure 200, thereby making the enclosure 310 and the rear enclosure 200 elastically connected.

[0214] In some embodiments, the first sound guide 400 includes a rigid portion 420, which can provide support and limit for the elastic portion 410, thereby ensuring the shape of the first sound guide 400; it can also provide an installation structure for the first sound guide 400, thereby ensuring the reliability of the installation of the first sound guide 400.

[0215] The rigid part 420 is fixedly connected to the housing 310 or the rear housing 200. For example, the rigid part 420 is bonded to the housing 310 or the rear housing 200, which is a simple connection method. Alternatively, the rigid part 420 can be snapped into the housing 310 or the rear housing 200, which provides a stable connection.

[0216] In some embodiments, such as Figure 14 As shown, the elastic part 410 and the rigid part 420 of the first sound guide 400 are stacked. This arrangement allows the first sound guide 400 to have a large area of ​​rigid part 420, which facilitates the installation and fixation of the first sound guide 400.

[0217] For example, one of the housing 310 and the rear housing 200 is bonded to the rigid part 420, and the other of the housing 310 and the rear housing 200 is in contact with the elastic part 410. With this arrangement, the bonding of the rigid part 420 is more stable and reliable, and the contact of the elastic part 410 makes the housing 310 and the rear housing 200 elastically connected.

[0218] In other embodiments, such as Figure 15 As shown, the rigid part 420 of the first sound guide 400 includes a plurality of rigid members 421, which are arranged at intervals. While providing support for the elastic part 410, the number of rigid parts 420 is reduced, which not only helps to reduce the amount of material used in the rigid part 420, but also helps to reduce the weight of the first sound guide 400, which is beneficial to the thin and light design of the display device.

[0219] In some embodiments, such as Figure 16As shown, the rigid portion 420 of the first sound guide 400 includes a plurality of rigid members 421, which are spaced apart along the extension direction of the elastic portion 410. When the elastic portion 410 is formed by splicing multiple elastic members, the plurality of rigid members 421 are spaced apart along the length direction of each elastic member. The extension direction dimension of the elastic portion 410 is relatively large, while the width direction dimension of the elastic portion 410 is relatively small. The spaced arrangement of the plurality of rigid members 421 along the extension direction of the elastic portion 410 not only provides sufficient arrangement space but also facilitates support for the elastic portion 410 and helps maintain the shape of the first sound guide 400.

[0220] In other implementations, the first sound guide 400 is an elastic component, such as an elastic rubber component, foam, or sponge. This design makes the first sound guide 400 a single piece, which not only provides better sealing and reduces the possibility of sound leakage from the acoustic cavity, but also ensures sufficient elastic deformation force, guaranteeing an elastic connection between the enclosure 310 and the rear enclosure 200. Furthermore, the use of elastic component structures from related technologies eliminates the need for additional processing and design, resulting in a simple structure.

[0221] If the thickness of the first sound guide 400 is less than 2mm, the elastic deformation is small, which can easily cause the speaker diaphragm to come into contact with the rear shell 200, resulting in noise or even damage.

[0222] In some embodiments, the thickness of the first sound guide 400 is greater than or equal to 2 mm, ensuring that the first sound guide 400 has a certain thickness and elasticity, and preventing the rear shell 200 from contacting the enclosure 310.

[0223] If the thickness of the first sound guide 400 is greater than 4mm, it will result in a large thickness of the first sound guide 400, thereby increasing the overall thickness of the speaker and making it difficult to design a thinner speaker.

[0224] In some embodiments, the thickness of the first sound guide 400 is less than or equal to 4 mm. This configuration allows the first sound guide 400 to have a certain thickness, providing a vibration interval for the diaphragm of the first speaker 320; it also allows the first sound guide 400 to have sufficient elastic deformation, which helps to extend the service life of the first sound guide 400.

[0225] In some embodiments, the thickness of the first sound guide 400 can be 2mm to 4mm. For example, the thickness of the first sound guide 400 can be 2mm to 2.5mm, 2.5mm to 3mm, 3mm to 3.5mm, or 3.5mm to 4mm. Exemplarily, the thickness of the first sound guide 400 can be 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, or 4.0mm, etc.

[0226] This design ensures that the first sound guide 400 has sufficient thickness to guarantee the elastic connection between the rear shell 200 and the cabinet 310. It also prevents the thickness of the first sound guide 400 from being too large, which would increase the overall thickness of the speaker and hinder the reduction of speaker thickness.

[0227] If the width of the first sound guide 400 is less than 8mm, the first sound guide 400 will have poor support and will be easily broken down by sound waves, resulting in sound leakage and affecting the sound quality.

[0228] In some embodiments, the width of the first sound guide 400 is greater than or equal to 8mm. This setting helps to ensure that the first sound guide 400 has sufficient width to stably and reliably support the first speaker 300 and guide the sound waves.

[0229] If the width of the first sound guide 400 is greater than 10mm, it will not only take up a lot of space for installation, but also require more materials.

[0230] In some embodiments, the width of the first sound guide 400 is less than or equal to 10 mm. This setting can ensure that the first sound guide 400 has sufficient width to form the first sound cavity 301; it can also reduce the amount of material used in the first sound guide 400.

[0231] In some embodiments, the width of the first sound guide 400 can be 8mm to 10mm. For example, the width of the first sound guide 400 can be 8mm to 9mm or 9mm to 10mm. Exemplarily, the width of the first sound guide 400 can be 8mm, 8.2mm, 8.4mm, 8.5mm, 8.6mm, 8.8mm, 9.0mm, 9.1mm, 9.2mm, 9.4mm, 9.5mm, 9.6mm, 9.8mm, 10.0mm, etc.

[0232] This design not only ensures that the first sound guide 400 has sufficient width to reliably and elastically support the first speaker 300, but also prevents the first sound guide 400 from being too wide, which would result in excessive installation space.

[0233] In some embodiments, the density of the first sound guide 400 is greater than or equal to 24 kg / m3. This configuration ensures that the first sound guide 400 has sufficient elasticity and also guides the sound waves, allowing the sound waves to be transmitted from the sound outlet.

[0234] If the density of the first sound guide 400 is less than 24 kg / m3, it will not only make the elastic force of the first sound guide 400 insufficient, which will easily lead to rigid contact between the rear shell 200 and the cabinet shell 310; it will also easily cause sound waves to pass through the first sound guide 400, resulting in sound leakage and other problems, affecting the sound quality.

[0235] If the density of the first sound guide 400 is greater than 26 kg / m3, the elastic force of the first sound guide 400 is too large, which makes it easy for sound waves to be transmitted to the rear shell 200 through the first sound guide 400, and thus noise is likely to occur.

[0236] In some embodiments, the density of the first sound guide 400 is less than or equal to 26 kg / m3. This arrangement makes the first sound guide 400 easy to elastically deform, increasing the elastic force between the rear shell 200 and the enclosure 310, reducing the noise problem caused by the rigid connection between the rear shell 200 and the enclosure 310, and also guiding the sound waves.

[0237] In some embodiments, the density of the first sound guide 400 is greater than or equal to 24 kg / m³ and less than or equal to 26 kg / m³. For example, the density range of the first sound guide 400 is 24 kg / m³ to 24.5 kg / m³, 24.5 kg / m³ to 25 kg / m³, 25 kg / m³ to 25.5 kg / m³, or 25.5 kg / m³ to 26 kg / m³.

[0238] In this way, the first sound guide 400 can be easily deformed elastically, increasing the elastic force between the rear shell 200 and the enclosure 310, reducing the noise problem caused by the rigid connection between the rear shell 200 and the enclosure 310, and also guiding the sound waves.

[0239] Continue to refer to Figure 5 and Figure 6In some embodiments, multiple first speakers 320 may be provided, such as two, three, or four. Multiple first speakers 320 are arranged at intervals along the length of the first sound outlet 302, and all multiple first speakers 320 are disposed within the same first sound cavity 301. Thus, the first sound guide 400 surrounds the outside of all the first speakers 320, and multiple first speakers 320 can share a single first sound outlet 302, allowing sound waves to be concentrated and emitted from the first sound outlet 302, improving the acoustic effect; moreover, multiple speakers can be arranged within a limited space, improving the sound output effect.

[0240] In some embodiments, combined with Figure 17 Multiple first loudspeakers 320 and multiple first sound cavities 301 are provided, wherein at least one first loudspeaker 320 is independently disposed in one first sound cavity 301. The sound outlets of the multiple first sound cavities 301 are all located on the same side of the enclosure 310, which helps to ensure the directionality of the sound output.

[0241] In some embodiments, each first speaker 320 is disposed within a first acoustic cavity 301, which can reduce interference between different speakers.

[0242] Compared to setting a larger first acoustic cavity 301 to accommodate all the first speakers, the above-mentioned method increases the support position of the first sound guide 400 by setting multiple smaller first acoustic cavities 301, ensuring the elastic connection between the rear shell 200 and the enclosure 310, and reducing the noise caused by the rigid contact between the rear shell 200 and the enclosure 310 due to insufficient elastic support of the first sound guide 400.

[0243] Continue to refer to Figure 6 and Figure 8 In some embodiments, the first speaker 300 further includes a second speaker 330, which is mounted on the housing 310 and located inside the first sound cavity 301.

[0244] In some embodiments, the mounting slot 313 is large in size, so that the second speaker 330 can share a mounting slot 313 with the first speaker 320. This arrangement helps to simplify the structure of the housing 310.

[0245] In other embodiments, multiple mounting slots 313 may be provided, with the second speaker 330 and the first speaker 320 respectively installed in the mounting slots 313. This arrangement results in a smaller size for the mounting slots 313, which helps to ensure the structural strength of the housing 310.

[0246] In some embodiments, at least a portion of the sound wave frequencies of the second speaker 330 are different from the sound wave frequencies of the first speaker 320. For example, a portion of the sound wave frequencies of the second speaker 330 are greater than the sound wave frequencies of the first speaker 320.

[0247] For example, the second speaker 330 can be a tweeter, and the sound wave frequency range of the second speaker 330 can be 2KHz to 20KHz. The first speaker 320 can be a midrange speaker, and the sound wave frequency range of the first speaker 320 can be 200Hz to 8KHz, or 200Hz to 10KHz.

[0248] In some embodiments, the sound wave frequency of the second speaker 330 is higher than that of the first speaker 320.

[0249] The speaker of the first speaker 300 in some embodiments of this application improves the acoustic effect of the display device by combining mid-range and high-range frequencies.

[0250] In some embodiments, no sound guide is provided on the outer side of the second speaker 330. When the first speaker 320 is a full-range speaker and the second speaker 330 is a tweeter, the two are installed close together, and there is not enough space to set up a sound guide, so that the second speaker 330 and the first speaker 320 share a common acoustic cavity, which helps to simplify the speaker structure.

[0251] In some embodiments, the display device 10 further includes a second sound guide 500, which is located within the first sound cavity 301 and contacts the rear shell 200 and the enclosure 310 respectively; the second sound guide 500, the rear shell 200, and the enclosure 310 together form the second sound cavity 501, and the second sound guide 500 forms a second sound outlet 502 on one side of the first sound outlet 302. The second speaker 330 is located within the second sound cavity 501.

[0252] In this embodiment, a second sound guide 500 is provided in the first sound cavity 301 to form a second sound cavity 501 for mounting the second speaker 330. This not only separates the second speaker 330 and the first speaker 320 using the second sound cavity 501, but also reduces the possibility of them resonating and generating noise in the first sound cavity 301. The sound output direction of the second speaker 330 is the same as that of the first speaker 320, which ensures that the sound waves are mixed and transmitted simultaneously, thus ensuring the acoustic effect of the display device.

[0253] The structure and connection method of the second sound guide 500 can be referenced from the first sound guide 400.

[0254] Some embodiments of this application use a second sound guide 500 to place the second speaker 330 and the first speaker 320 in different sound cavities, thereby reducing interference between different speakers and improving sound quality.

[0255] like Figure 5 and Figure 6As shown, in some embodiments, multiple first speakers 320 are provided; one second speaker 330 may be provided, and the second speaker 330 may be provided between two adjacent first speakers 320. For example, two first speakers 320 are provided, and the second speaker 330 is provided between the two first speakers 320, and the two first speakers 320 are symmetrically arranged about the second speaker 330. This arrangement helps to improve the appearance of the first speaker 300.

[0256] like Figure 18 As shown, in some embodiments, multiple first speakers 320 are provided, and second speakers 330 are provided at the ends of the multiple first speakers 320. When the first speaker 300 is installed on the top or bottom side of the display device, this arrangement facilitates the placement of higher frequency speakers on the side away from the vertical center line of the display device, which is beneficial to improving the stereo effect of the display device and increasing the sound field width.

[0257] In some embodiments, two first speakers 320 and one second speaker 330 are combined to form a sound-emitting unit 303, and the sound-emitting unit 303 is arranged within the same first acoustic cavity 301. This arrangement allows for the improvement of sound performance and acoustic effects when the first speaker enclosure 300 is relatively thin, as a single first speaker 320 may not meet the requirements in terms of sound performance, power, etc. Therefore, the combination of two first speakers 320 and one second speaker 330 improves the sound performance such as bandwidth and loudness, thereby enhancing the acoustic effect.

[0258] Reference Figure 19 and Figure 20 In some embodiments, the first speaker 300 has multiple first speakers 320 and multiple second speakers 330; the multiple first speakers 320 are arranged at intervals along the length of the enclosure 310, and the multiple second speakers 330 are arranged at intervals along the length of the enclosure 310, so as to increase the bandwidth and improve acoustic performance such as sound loudness.

[0259] exist Figure 19 The illustrated structure has two first speaker enclosures 300, each containing a different number of loudspeakers. Those skilled in the art can adjust the number of loudspeakers in each first speaker enclosure 300 according to available space, acoustic requirements, etc. In some possible implementations... Figure 19 The structure shown can serve as a surround sound speaker for a display device.

[0260] In some possible implementations, multiple first speakers 320 are evenly spaced along the length of the enclosure 310 to improve the surround sound effect of the display device.

[0261] In some embodiments, the number of second speakers 330 is half the number of first speakers 320, that is, the number of first speakers 320 is twice the number of second speakers 330. In this way, two first speakers 320 can be paired with one second speaker 330 to form a sound-emitting unit 303, thereby improving acoustic efficiency.

[0262] When the first speaker 300 has multiple sound-emitting units 303, the position of the second speaker 330 within the sound-emitting unit 303 can be varied. For example, the second speaker 330 can be positioned between two first speakers 320, or, for another example, the second speaker 330 can be positioned at the end of the sound-emitting unit 303.

[0263] In some embodiments, the first speaker 300 may include a sound-emitting unit 303, making the first speaker 300 compact in structure and flexible in installation position.

[0264] In some embodiments, the first speaker 300 may include a plurality of sound-emitting units 303, so that the first speaker 300 has sufficient frequency width, sound loudness, etc., to improve the surround effect.

[0265] In some embodiments, the first speaker 300 may be located on the bottom side of the rear housing 200, and the first sound outlet 302 may face downwards, so that the first speaker 300 emits sound downwards.

[0266] In some embodiments, the first speaker 300 may be located on the left side of the rear cover 200, and the first sound outlet 302 faces left, so that the first speaker 300 emits sound to the left; the first speaker 300 may be located on the right side of the rear cover 200, and the first speaker 300 emits sound to the right.

[0267] In the above description, both the first speaker 320 and the second speaker 330 use the rear housing 200 and the sound guide to guide the sound waves, which is not limiting.

[0268] For example, in some embodiments, the first speaker 320 can be a mid-range speaker and the second speaker 330 can be a tweeter; the first speaker 320 uses the rear shell 200 and the first sound guide 400 to guide the sound waves, and the second speaker 330 is provided with a sound guide baffle on the side facing the rear shell 200, which guides the sound waves to the side for sound output.

[0269] For example, in some embodiments, the first speaker 320 can be a tweeter and the second speaker 330 can be a midrange speaker; the first speaker 320 uses the rear shell 200 and the first sound guide 400 to guide the sound waves, and the second speaker 330 is provided with a sound guide baffle on the side facing the rear shell 200, which guides the sound waves to the side for sound output.

[0270] In some embodiments, continue to refer to Figure 5 and Figure 6 The first speaker 300 also includes a third speaker 340, which is mounted on the side of the enclosure 310 facing the rear enclosure 200, and there is a gap between the diaphragm of the third speaker 340 and the rear enclosure 200 to allow for the vibration of the diaphragm of the third speaker 340.

[0271] In some embodiments, the third speaker 340 is a subwoofer, and the sound wave frequency of the third speaker 340 may be below 200Hz.

[0272] No sound guide is required on the outside of the third speaker 340. The third speaker 340 is a woofer, which has low requirements for the directivity of sound waves.

[0273] With attachment Figure 20 Taking the first speaker 300 shown as an example, in some embodiments, the thickness of the enclosure 310 can be 9mm, and the volume of the enclosure 310 is 0.4L.

[0274] Appendix Figure 20 The first speaker 300 shown has two first speakers 320, which are full-range speakers with a rated power of 12W; and two second speakers 330, which are tweeters with a rated power of 12W.

[0275] The first speaker 300 has a speaker frequency range of 200Hz to 20kHz.

[0276] The distortion rate of the first speaker 300 is less than or equal to 7%.

[0277] The sensitivity level of the first speaker 300 is greater than or equal to 78dB.

[0278] The researchers of this application also discovered that the sound emitted by the display device exhibits peaks and troughs in certain frequency bands of its sound frequency response curve, resulting in an uneven sound and affecting sound quality. Through repeated research, they found that because the speaker transmits sound waves towards the opposite wall of the speaker enclosure, the sound waves are deflected by the enclosure and emitted through the side sound outlets. Because the sound waves reflect back and forth within the speaker enclosure, peaks and troughs easily appear in certain frequency bands, causing an uneven sound and affecting sound quality.

[0279] Especially for the woofer, its amplitude and airflow are relatively large, and the sound waves are directly transmitted to the rear shell 200, resulting in relatively large vibration of the rear shell 200, which is prone to generating noise.

[0280] Therefore, in some embodiments, combining Figure 21 A sound outlet 201 is provided on a portion of the wall of the first enclosure 30a. The wall of the enclosure with the sound outlet 201 is opposite to and spaced from the first speaker 320.

[0281] In some embodiments of this application, the sound emission direction of the sound outlet 201 is different from that of the first sound outlet 302. Specifically, the sound emission direction of the sound outlet 201 is opposite to the diaphragm of the first speaker 320, and the first sound outlet 302 is located on the side of the first speaker 320.

[0282] The first enclosure 30a is part of the first speaker 300, and the first enclosure 30a is constructed to form a first acoustic cavity 301 for accommodating the first loudspeaker 320.

[0283] In some embodiments, the first enclosure 30a may be formed by the enclosure shell 310, the rear shell 200, and the first sound guide 400 described in some of the above embodiments. This arrangement helps to reduce the thickness of the speaker enclosure. In this case, the rear shell 200 and the area of ​​the rear shell 200 opposite to the diaphragm of the speaker are provided with sound outlet holes 201. For example, the area of ​​the rear shell 200 opposite to the first speaker 320 is provided with sound outlet holes 201; another example is that the area of ​​the rear shell 200 opposite to the second speaker 330 is provided with sound outlet holes 201; yet another example is that the area of ​​the rear shell 200 opposite to the third speaker 340 is provided with sound outlet holes 201.

[0284] In other embodiments, the first enclosure 30a is a structure independent of the rear shell 200, and there is a gap between the first enclosure 30a and the rear shell 200 to prevent vibration of the rear shell 200 caused by vibration of the first enclosure 30a. In this case, a sound outlet 201 is provided on the enclosure wall opposite to the rear shell 200.

[0285] For example, the first enclosure 30a includes the aforementioned enclosure shell 310 and a sound guide baffle, which together with the enclosure shell 310 form a first acoustic cavity 301. The sound guide baffle is spaced apart from the rear shell 200.

[0286] The first enclosure 30a, which is independent of the rear shell 200, makes the speaker have a closed structure, which facilitates transportation and protects the internal structure; it requires a larger installation space than some of the embodiments mentioned above.

[0287] In some embodiments of this application, by providing a sound outlet 201, some sound waves can be transmitted from the sound outlet 201, reducing the reflection path of the sound waves in the first sound cavity 301, thereby reducing the back-and-forth reflection of the sound waves in the first sound cavity 301, thereby weakening the peaks and valleys of the sound frequency response curve in certain frequency bands, improving the smoothness of the sound, and thus improving the sound quality.

[0288] Furthermore, by providing a sound hole 201 on the rear shell 200 corresponding to the area of ​​the third speaker 340, it is beneficial to reduce the vibration force of sound waves on the rear shell 200 and increase the transmission direction of low-frequency sound waves, so that the low-frequency sound waves of the first speaker 300 can be transmitted laterally (e.g. towards the ground side of the display device) and also backward, thereby improving the acoustic effect.

[0289] In some embodiments, the sound outlet 201 can be a circular hole, which is convenient to process, and the smooth hole wall of the circular hole can reduce stress concentration; compared with the polygonal hole with the same maximum hole diameter, the hole area of ​​the circular hole is larger; when forming the same sound outlet area, the number of circular holes is less, which can reduce the impact on the structural strength of the enclosure.

[0290] Of course, the sound hole 201 can also be an oval hole, a square hole, or a polygonal hole, or an irregularly shaped hole.

[0291] In some embodiments, the diameter of the sound outlet 201 can be 2.5mm to 3.5mm. This can avoid the difficulty and cost of processing due to the small diameter of the sound outlet 201, and also avoid the large diameter of the sound outlet 201 affecting the structural strength of the first housing 30a.

[0292] In some embodiments, multiple sound holes 201 are provided, and the multiple sound holes 201 can be arranged in a rectangular matrix, a circular matrix, etc., which can increase the area for sound wave transmission and improve the aesthetics of the back cover 200.

[0293] In some embodiments, combined with Figure 22 The diaphragm 321 of the first loudspeaker has a circular projection shape on the rear enclosure wall 32. Multiple sound outlets 201 are arranged within the projection area of ​​the diaphragm 321 on the rear enclosure wall 32. In other words, the multiple sound outlets 201 are all axially opposite to the diaphragm 321 of the first loudspeaker. This arrangement facilitates the transmission of sound waves through the sound outlets 201, reduces the reflection path of sound waves within the first acoustic cavity 301, thereby reducing the back-and-forth reflection of sound waves within the first acoustic cavity 301, weakening the peaks and valleys of the sound response curve in certain frequency bands, improving the smoothness of the sound, and thus improving the sound quality.

[0294] The sound outlet 201 is opposite to the edge of the diaphragm 321. The sound outlet 201 can also be opposite to the middle area of ​​the diaphragm 321. The arrangement of the sound outlet 201 is set according to the frequency band corresponding to the peak and valley positions of the sound frequency response curve, so as to weaken the peaks and valleys of these frequency bands and make the sound smooth.

[0295] Because the sound waves are concentrated and emitted through the sound outlet 201, airflow noise is easily generated at the sound outlet 201, resulting in noise and affecting the acoustic performance of the display device. Airflow noise refers to the frictional sound generated between the airflow and the sound outlet 201 when the eddy current velocity reaches a certain value. If the airflow velocity at the sound outlet 201 reaches 20 m / s, perceptible airflow noise, or "wind noise," can be generated.

[0296] Therefore, in some embodiments, the cross-sectional area of ​​the sound outlet 201 is reduced; for example, when the sound outlet 201 is a circular hole, the diameter of the sound outlet 201 is reduced. Exemplarily, the diameter of the sound outlet 201 can be within a certain range. Furthermore, the arrangement density of the sound outlets 201 is increased. This can be understood as, for example... Figure 22 The sound output area of ​​all the sound holes 201 shown is equal to the sound output area of ​​all the sound holes 201 shown. Figure 23 All the sound holes 201 shown have the same sound output area. Figure 23 The number of sound holes 201 shown is greater than Figure 22 The number of sound holes 201 shown is as follows: Figure 23 The diameter of the sound outlet 201 shown is smaller than Figure 22 The aperture of the sound outlet 201 shown is shown.

[0297] In some embodiments of this application, by increasing the number of sound outlets 201 and reducing the area of ​​a single sound outlet 201, the gas flow velocity of a single sound outlet 201 is reduced, thereby mitigating airflow noise.

[0298] However, the above methods are not only difficult and costly to process, but also affect the structural strength of the box.

[0299] In some embodiments, combined with Figure 24 A damping component 210 is provided on the wall of the enclosure where the sound outlet 201 is provided. It is configured to provide damping effect on the gas flow in the sound outlet 201, reduce the possibility of airflow noise in the sound outlet 201, reduce wind noise, and improve the sound quality of the display device.

[0300] The damping component 210 covers at least part of the sound outlet 201 to divide the sound outlet 201 and form a plurality of small holes; the damping component 210 increases the resistance of gas flow through the sound outlet 201 and reduces the gas flow velocity, thereby reducing airflow noise.

[0301] In some embodiments of this application, the damping component 210 covers all sound outlets 201, providing damping for the gas flow in each sound outlet 201 and reducing airflow noise.

[0302] In some embodiments, the first enclosure 30a has a front enclosure wall 31, a rear enclosure wall 32, and a circumferential side wall 33. The front enclosure wall 31 and the rear enclosure wall 32 are opposite to each other and spaced apart along the front-rear direction of the display device. The front enclosure wall 31 faces the display module 100, and the rear enclosure wall 32 is provided with a sound outlet 201. The circumferential side wall 33 connects the front enclosure wall 31 and the rear enclosure wall 32, and is provided with a first sound outlet 302. This configuration enables the first speaker 300 to emit sound from the side.

[0303] In some embodiments, at least a portion of the first housing 30a is a metal plate portion, for example, at least a portion of the front housing wall 31 is a metal plate portion, for example, at least a portion of the rear housing wall 32 is a metal plate portion. This is beneficial for improving the structural strength of the first housing 30a and reducing deformation of the first housing 30a.

[0304] In some embodiments, the first housing 30a includes a metal plate portion and an injection-molded plate portion. The metal plate portion can be bonded to the injection-molded plate portion, resulting in a simple connection method; alternatively, the metal plate portion can serve as an insert during injection molding of the injection-molded plate portion, integrally formed with the injection-molded plate portion, ensuring a stable and reliable connection. The injection-molded plate portion can be a plastic plate portion.

[0305] In some embodiments, the magnetic yoke of the first speaker 320 contacts the metal plate portion, which helps to increase the heat dissipation area of ​​the first speaker 320, thereby improving the heat dissipation effect of the first speaker 320.

[0306] When the rear shell 200 forms part of the first enclosure 30a, the rear shell 200 forms the rear enclosure wall 32 of the first enclosure 30a, the enclosure shell 310 forms the front enclosure wall 31 of the first enclosure 30a, and the first sound guide 400 and the groove side wall 3131 of the mounting groove 313 together form the circumferential side wall 33 of the first enclosure 30a.

[0307] In some embodiments, the wall of the first enclosure 30a, which is provided with the sound outlet 201, has an inner surface facing the first sound cavity 301 and an outer surface opposite to the inner surface.

[0308] In some embodiments, combined with Figure 24 A damping component 210 is provided on the inner surface of the box wall, so that the damping component 210 is hidden inside the first box 30a, which facilitates the protection of the damping component 210.

[0309] In other embodiments, a damping component 210 is provided on the outer surface of the box wall to facilitate the replacement and maintenance of the damping component 210 and avoid the damping component 210 occupying the internal space of the box.

[0310] In some other embodiments, a damping component 210 is provided inside the sound outlet 201. This arrangement facilitates the replacement and maintenance of the damping component 210 and avoids increasing the thickness of the first speaker 300 by the damping component 210.

[0311] In some embodiments of this application, the damping component 210 has a porous structure. The damping component 210 is configured to absorb the sound waves from the sound hole 201. When the sound waves pass through the damping component 210, the damping component 210 plays a damping role. The air vibrates and rubs against the hole wall of the damping component 210, causing some of the sound energy to be converted into heat energy and absorbed, thereby reducing the airflow noise.

[0312] In some embodiments, the damping component 210 has a sheet-like structure, which makes the damping component 210 occupy less thickness space and has little impact on the overall weight of the display device.

[0313] In some embodiments, the damping component 210 is a mesh cover with pores, which is formed by interwoven mesh threads. The damping component 210 has a plurality of mesh holes evenly distributed on it. The cross-sectional area of ​​the mesh holes is smaller than the cross-sectional area of ​​the sound outlet 201. This arrangement allows some of the mesh threads of the mesh cover to be opposite to the sound outlet 201. The mesh threads of the mesh cover cover at least a portion of the sound outlet 201, dividing the larger sound outlet 201 into a plurality of smaller holes, thereby increasing the airflow resistance and helping to reduce airflow noise.

[0314] When the mesh of the damping component 210 is a circular hole and the sound outlet 201 is a circular hole, the diameter of the hole in the damping component 210 is smaller than the diameter of the sound outlet 201.

[0315] For example, when the aperture of the sound outlet 201 is 2.5mm to 3.5mm, the mesh size of the damping component 210 can be 300 mesh, so that the aperture of the damping component 210 is much smaller than the aperture of the sound outlet 201, thereby reducing the wind noise of the sound outlet 201.

[0316] In some embodiments, the damping component 210 is a mesh fabric with a mesh area smaller than the cross-sectional area of ​​the sound outlet 201, allowing the mesh fabric to block the sound outlet 201 and provide damping for the gas flow through the sound outlet 201. The mesh fabric is a woven fabric with mesh openings, which can be made of interwoven yarns to form a mesh structure. This structure makes the mesh fabric breathable, allowing sound waves to still be transmitted through the sound outlet 201; the mesh fabric also has softness and a certain degree of elasticity, which helps to improve the damping effect of airflow; the mesh fabric also has a certain degree of abrasion resistance, which helps to increase its service life.

[0317] Mesh fabrics come in a variety of materials, including high-strength materials such as polyester, nylon, polyethylene, and polypropylene. They can also be made from soft rubber or plastic threads. In addition, cotton and polyester are also used to make mesh fabrics. Polyester mesh fabrics have high tensile strength and are wear-resistant, while nylon mesh fabrics are wear-resistant and have good elasticity.

[0318] In some embodiments, the damping member 210 is disposed on the inner surface of the rear shell 200, making the rear shell 200 have a clean and regular appearance. The inner surface of the rear shell 200 is the surface of the rear shell 200 facing the first acoustic cavity 301, and the outer surface of the rear shell 200 is opposite to its inner surface in the front-rear direction.

[0319] In some embodiments, the damping component 210 is disposed on the outer surface of the rear shell 200, which facilitates the diversified design of the damping component 210 and improves the aesthetics of the rear shell 200; moreover, the damping component 210 is disposed on the outside of the rear shell 200, which not only facilitates the disassembly of the damping component 210 for cleaning, maintenance, etc., but also does not occupy the internal space of the rear shell 200.

[0320] In some embodiments, the damping component 210 can be installed in various ways.

[0321] For example, the damping component 210 is bonded to the rear shell 200, making installation simple.

[0322] For example, the damping component 210 is snapped onto the rear shell 200, which is simple and stable to install and easy to disassemble.

[0323] For example, the damping component 210 is fixed to the rear shell 200 by screws, which provides high stability.

[0324] In some embodiments, the damping member 210 covers all the sound outlets 201, and its shape can be varied.

[0325] For example, the damping component 210 is annular and only covers the rear shell 200 where the sound outlet 201 is located, such as Figure 25 As shown, this reduces the amount of material used in the damping component 210.

[0326] For example, the damping component 210 is polygonal, such as rectangular, like... Figure 26 As shown, the rear shell 200 covers the area where the sound outlet 201 is set and its internal area. With this configuration, the damping component 210 has a simple structure and is easy to process; moreover, the damping component 210 has a large contact area with the rear shell 200, which helps to improve the installation stability and reliability of the damping component 210.

[0327] Of course, the shape of the damping component 210 is not limited to this. For example, the damping component 210 can also be circular, elliptical, flower-shaped, etc.

[0328] In some embodiments, the damping component 210 is an integral structure, which facilitates the overall installation of the damping component 210 and improves its appearance.

[0329] In some embodiments, the damping component 210 can be a split structure, that is, the damping component 210 includes multiple mesh panels, which are spliced ​​together to form the damping component 210. This arrangement allows the damping component 210 to be installed separately, making the installation of the damping component 210 simpler and more flexible.

[0330] In some possible implementations, such as Figure 27 As shown, a damping component 210 is provided inside the sound outlet 201. The damping component 210 can be a sponge, foam, sound-absorbing cotton, etc., which can absorb sound waves and reduce the possibility of airflow noise at the sound outlet 201.

[0331] In some embodiments, the damping member 210 is configured such that the inner and outer sides of the rear shell 200 are connected through the sound outlet 201, so that when the sound wave passes through the sound outlet 201, part of it can be absorbed by the damping member 210, and part of the sound wave can also be transmitted to the outer side of the rear shell 200 through the sound outlet 201, increasing the sound wave emission direction.

[0332] In some embodiments, the damping component 210 can be interference-fitted into the sound outlet 201, making the installation simple and reliable.

[0333] In some embodiments, the damping component 210 can also be fixed to the rear housing 200 by a fastener. For example, the damping component 210 is fixed to a bracket, which is screwed, snap-fitted, or glued to the rear housing 200.

[0334] In some embodiments, combined with Figure 27 An outer cover 230 is provided on the back of the rear cover 200. The outer cover 230 covers the area where the sound hole 201 is provided, which serves to protect and shield the damping component 210, and also helps to ensure the appearance of the rear cover 200.

[0335] In some embodiments, refer to Figure 28 In some embodiments, the damping component 210 includes multiple layers of mesh arranged in a stacked manner, with the mesh lines of adjacent layers interlaced to reduce the area of ​​a single mesh opening. For example, the damping component 210 includes a first layer mesh 211 and a second layer mesh 212 arranged in a stacked manner. The first layer mesh 211 has a first mesh opening S1, and the second layer mesh 212 forms a second mesh opening S2. The mesh lines of the first layer mesh 211 and the second layer mesh 212 are interlaced, such that the first mesh opening S1 and the second mesh opening S2 partially overlap, forming an interlaced mesh opening S0 with a smaller single-aperture area.

[0336] Compared to a single-layer mesh, the damping component 210 of this application embodiment, by setting multiple layers of mesh, not only helps to reduce the pore area of ​​a single mesh, increase airflow resistance, and further reduce airflow noise, but also helps to improve the structural strength of the damping component 210, making it easier to install and fix.

[0337] In some embodiments, the damping component 210 is a single-layer mesh. The mesh lines of the single-layer mesh are used to separate the sound holes 201, forming multiple small sound outlet holes, increasing airflow resistance and reducing airflow noise. Airflow is generated during sound wave radiation, and the damping component 210 of the single-layer mesh can reduce the resonance of the outlet wires between multiple meshes.

[0338] As described above, when the rear shell 200 is provided with a sound outlet 201, a damping component 210 is provided on the rear shell 200. The damping component 210 is configured such that the inner and outer sides of the rear shell 200 are connected through the sound outlet 201. This can ensure that the sound waves are transmitted through the sound outlet 201, reducing the vibration force of the sound waves on the rear shell 200; it can also absorb the sound waves from the sound outlet 201, reducing the airflow noise of the sound outlet 201.

[0339] In the description of some of the above embodiments, a third speaker 340 may be provided in the first speaker 300. The third speaker 340 is configured to emit bass frequencies, so that the first speaker 300 has bass characteristics. That is, the bass speaker is integrated into a speaker with mid-high frequencies.

[0340] In some embodiments, the display device may also be configured with a separate speaker that emits bass frequencies. For example... Figure 29 and Figure 30 As shown, in some embodiments, the display device 10 includes a second speaker 600 configured to emit low-frequency sounds. The second speaker 600 is mounted between the display module and the rear housing 200.

[0341] The second speaker 600 includes a fourth speaker 620 for emitting low-frequency sounds. The sound wave frequency emitted by the fourth speaker 620 can be below 200Hz.

[0342] In some embodiments, the fourth speaker 620 has low requirements for the directivity of sound waves, and no sound guide is required on its outer side.

[0343] In some embodiments, combined with Figure 30 and Figure 31 The fourth speaker 620 includes a bracket 622, which not only provides a mounting position for the cone, magnetic circuit structure, etc., but also fixes the fourth speaker 620 inside the speaker cabinet.

[0344] In some embodiments, the fourth loudspeaker 620 includes a magnetic circuit structure, which includes a U-shaped magnetic yoke 627, a magnet 628, a washer 629, and a voice coil 626. The U-shaped magnetic yoke 627 is fitted into an opening at the center of the bottom of the bracket 622, and the magnet 628 and the washer 629 are installed inside the U-shaped magnetic yoke 627. The voice coil 626 is wound around the outside of the magnet 628 and the washer 629, and the bottom of the voice coil 626 is located inside the U-shaped magnetic yoke 627. The inner surface of the voice coil 626 has a gap with both the magnet 628 and the washer 629, and the outer surface of the voice coil 626 has a gap with the U-shaped magnetic yoke 627.

[0345] The fourth loudspeaker 620 also includes a first cone 623 and a second cone 624, both of which are annular. The outer side of the first cone 623 is attached to the top of the bracket 622, the inner side of the first cone 623 is attached to the outer side of the second cone 624, and the inner side of the second cone 624 is engaged with the top outer side of the voice coil 626.

[0346] In some embodiments, the first cone 623 and the second cone 624 are arranged coaxially, which helps to reduce phase differences and improve the clarity and consistency of the sound.

[0347] The fourth speaker 620 also includes a spider 625, one end of which is connected to the bracket 622, and the other end of which is connected to the second cone 624.

[0348] In some embodiments, one or more fourth speakers 620 may be provided. The number of fourth speakers 620 is related not only to the speaker power but also to the net volume of the speaker enclosure. When the net volume of the second speaker enclosure 600 is large, multiple fourth speakers 620 can be arranged to increase the loudness of the enclosure; when the net volume of the second speaker enclosure 600 is small, one fourth speaker 620 can be arranged to ensure low-frequency sound output. The net volume of the speaker enclosure is the volume of the enclosure minus the space occupied by all components within the enclosure.

[0349] like Figure 30 and Figure 31 As shown, the second speaker 600 includes a second enclosure 610, which is configured to form a third acoustic cavity 601 for mounting and accommodating a fourth speaker 620, providing a mounting location.

[0350] In some embodiments, the second housing 610 includes a first shell 611 and a second shell 612 connected together, the first shell 611 and the second shell 612 being fixedly connected to form a third acoustic cavity 601.

[0351] In some embodiments, combined with Figure 29The first shell 611 serves as the front shell of the second enclosure 610 and is located near the back panel of the display device. The first shell 611 can be flexibly mounted on the back panel, and its mounting method is the same as that of the enclosure 310, which will not be described in detail here.

[0352] In some embodiments, the first shell 611 includes a first plate 6111 and a first side wall 6112 disposed on the first plate 6111. The first side wall 6112 is located on the side of the first plate 6111 facing the second shell 612, and the first side wall 6112 is located at the edge of the first plate 6111.

[0353] In some embodiments, the first shell 611 includes a first rib 6113, which may be disposed on the first plate 6111, or the first rib 6113 may be disposed on the first side wall 6112, or the first rib 6113 may be disposed on both the first plate 6111 and the first side wall 6112, so as to improve the structural strength of the first shell 611.

[0354] The first rib 6113 is provided in multiple forms, and the multiple first ribs 6113 can be arranged at intervals along a certain direction. In some embodiments, the multiple first ribs 6113 are arranged in a cross pattern to form a grid structure, which helps to further improve the structural strength of the first shell 611.

[0355] When a first rib 6113 is provided on the first plate 6111, the first rib 6113 is lower than the height of the first side wall 6112 to avoid interference or rigid contact between the first rib 6113 and the second shell 612, which would cause abnormal noise.

[0356] In some embodiments, a clearance groove 6115 is provided on the first plate 6111, the clearance groove 6115 being recessed toward the third acoustic cavity 601 to avoid the internal structure of the display device. The clearance groove 6115 can also improve the structural strength of the first plate 6111.

[0357] In some embodiments, combined with Figure 29 and Figure 32 The second shell 612 serves as the rear shell of the second housing 610, and it is located near the rear shell 200 of the display device.

[0358] In some embodiments, a damping member 630 is provided between the second housing 612 and the rear housing 200 to reduce the vibration transmitted from the second speaker 600 to the rear housing 200.

[0359] The damper 630 can be bonded to the second shell 612 or the rear shell 200, and the connection method is simple and reliable. Alternatively, the damper 630 can be sandwiched between the second shell 612 and the rear shell 200, without the need for an additional connection structure for the damper 630.

[0360] For example, the damping element 630 can be a sponge, foam, etc.

[0361] In some embodiments, the damper 630 is annular and surrounds the outer side of the fourth speaker 620. In some embodiments, the damper 630 is disposed at the edge of the second housing 612 such that the central area of ​​the damper 630 can be exposed to the outer side of the rear housing 200.

[0362] In some embodiments, the second shell 612 includes a second plate 6121 and a second side wall 6122 disposed on the second plate 6121. The second side wall 6122 is located on the side of the second plate 6121 facing the second shell 612, and the second side wall 6122 is located at the edge of the second plate 6121.

[0363] In some embodiments, the second shell 612 includes a second rib 6123, which may be disposed on the second plate 6121, or disposed on the second side wall 6122, or disposed on both the second plate 6121 and the second side wall 6122, to improve the structural strength of the second shell 612.

[0364] The second rib 6123 is provided in multiple forms, and the multiple second ribs 6123 can be spaced apart along a certain direction. In some embodiments, the multiple second ribs 6123 are arranged in a cross pattern to form a grid structure, which helps to further improve the structural strength of the second shell 612.

[0365] When a second rib 6123 is provided on the second plate 6121, the second rib 6123 is lower than the height of the second side wall 6122 to avoid interference or rigid contact between the second rib 6123 and the first shell 611, which would cause abnormal noise.

[0366] In some embodiments, the edge of the second plate 6121 is recessed away from the rear shell 200 and towards the first shell 611, forming a recess 6124. The recess 6124 is convex on the side facing the first shell 611. A damping member 630 is provided between the recess 6124 and the rear shell 200. In this way, the damping member 630 can be accommodated in the recess 6124, and the thickness of the damping member 630 coincides with at least a portion of the thickness of the second shell 612, without increasing the thickness of the second speaker 600.

[0367] In some embodiments of this application, the first shell 611 and the second shell 612 are fixedly connected by screws, and the connection method is stable and reliable.

[0368] Combination Figure 29 and Figure 32In some embodiments, the first plate 6111 of the first shell 611 is provided with a first connecting post 6114, and the first connecting post 6114 is provided with a first connecting hole; the second plate 6121 of the second shell 612 is provided with a second connecting post 6125, and the second connecting post 6125 is provided with a second connecting hole. One of the first connecting hole and the second connecting hole is a through hole; for example, the first connecting hole is a through hole that passes through the first plate 6111 and the first connecting post 6114. Thus, screws pass through the first connecting hole and the second connecting hole, thereby fixing the first shell 611 and the second shell 612 together.

[0369] Furthermore, the provision of the first connecting post 6114 helps to improve the structural strength of the first shell 611. The provision of the second connecting post 6125 helps to improve the structural strength of the second shell 612.

[0370] In some embodiments, multiple first connecting posts 6114 can be provided, which helps to further improve the structural strength of the first shell 611. Multiple first connecting posts 6114 can be arranged in a rectangular matrix on the first plate 6111, with regular arrangement and structural stability.

[0371] In some embodiments, multiple second connecting posts 6125 can be provided to further improve the structural strength of the second shell 612. Multiple second connecting posts 6125 can be arranged in a rectangular matrix on the second plate 6121, resulting in a regular arrangement and structural stability.

[0372] In some embodiments, at least a portion of the first connecting post 6114 and at least the second connecting post 6125 are arranged coaxially, and the first connecting post 6114 and the second connecting post 6125 are connected by fasteners such as screws to achieve a fixed connection between the first shell 611 and the second shell 612.

[0373] In some embodiments, the number of first connecting posts 6114 is not equal to the number of second connecting posts 6125. The extra first connecting posts 6114 or second connecting posts 6125 can serve to increase strength and provide mounting positions for other components.

[0374] For example, when the thickness of the second plate 6121 is small, the number of second connecting posts 6125 can be greater than the number of first connecting posts 6114, which helps to improve the structural strength of the second shell 612.

[0375] For example, the number of second connecting posts 6125 is greater than the number of first connecting posts 6114. The second connecting posts 6125 provide a mounting position for the fourth speaker 620, which helps to simplify the structure of the second housing 612.

[0376] In some embodiments, one of the first connecting post 6114 and the second connecting post 6125 is provided with a positioning groove, and the other of the first connecting post 6114 and the second connecting post 6125 cooperates with the positioning groove to provide initial positioning for the connection of the first connecting post 6114 and the second connecting post 6125, thereby improving the assembly efficiency of the first shell 611 and the second shell 612.

[0377] For example, the end of the first connecting post 6114 facing away from the first plate 6111 forms a positioning groove, and the second connecting post 6125 cooperates with the positioning groove to provide initial positioning for the connection of the first connecting post 6114 and the second connecting post 6125.

[0378] In some embodiments, a positioning part is provided on one of the first shell 611 and the second shell 612, and a mating part is provided on the other of the first shell 611 and the second shell 612. The positioning part and the mating part cooperate to provide initial positioning for the fixed connection of the first shell 611 and the second shell 612, thereby improving the assembly efficiency of the first shell 611 and the second shell 612.

[0379] When the positioning part is a groove, the mating part is a protrusion that matches the groove; when the positioning part is a protrusion, the mating part is a groove that matches the protrusion.

[0380] In some embodiments of this application, a positioning part is provided on the first side wall 6112 and a mating part is provided on the second side wall 6122. This can provide initial positioning for the fixed connection of the first shell 611 and the second shell 612, and can also avoid the influence of the positioning part and the mating part on the net volume of the third sound cavity 601.

[0381] In some embodiments, the fourth speaker 620 is installed in the third acoustic cavity 601 formed by the first housing 611 and the second housing 612.

[0382] For example, the fourth speaker 620 can be fixedly connected to the first housing 611. For instance, the fourth speaker 620 can be fixedly connected to the first connecting post 6114. The connection method is stable and reliable, and also makes the structure of the first housing 611 simple.

[0383] For example, the fourth speaker 620 is fixedly connected to the second housing 612, for instance, the fourth speaker 620 is fixedly connected to the second connecting post 6125.

[0384] In some embodiments of this application, the fourth speaker 620 is mounted on the second housing 612. This arrangement facilitates the adjustment of the position of the cone of the fourth speaker 620 and the through hole of the second housing 612, improves the convenience of the connection between the cone and the second housing 612, and also improves the accuracy of the relative position between the outer cover of the fourth speaker 620 and the second housing 612, making the adjustment of the mounting position of the fourth speaker 620 more flexible.

[0385] In related technologies, the second enclosure 610 is mostly made of plastic. When the strength of the second enclosure 610 is insufficient, it is easy to deform, lose sound wave energy, and easily resonate with sound waves, producing noise.

[0386] In some embodiments, the second enclosure 610 increases structural strength by increasing wall thickness, but this does not affect the thinner design of the speaker enclosure.

[0387] In some embodiments, the second box 610 improves its structural strength by adding the aforementioned ribs, connecting columns, etc., but this makes the molding die structure of the second box 610 complex.

[0388] In some embodiments, at least a portion of the second housing 610 is a metal plate portion. This configuration helps to improve the structural strength of the second housing 610 and reduce its deformation.

[0389] For example, at least a portion of the first shell 611 is a metal plate portion, such as at least a portion of the first plate body 6111 of the first shell 611 being a metal plate portion, or at least a portion of the first side wall 6112 of the first shell 611 being a metal plate portion.

[0390] For example, at least a portion of the second shell 612 is a metal plate portion, such as at least a portion of the second plate body 6121 of the second shell 612 being a metal plate portion, or at least a portion of the second side wall 6122 of the second shell 612 being a metal plate portion.

[0391] In some embodiments, the first shell 611 includes a metal plate portion and an injection-molded plate portion. The metal plate portion can be bonded to the injection-molded plate portion, and the connection method is simple; or, the metal plate portion can be used as an insert during injection molding of the injection-molded plate portion, and can be integrally formed with the injection-molded plate portion, resulting in a stable and reliable connection. The injection-molded plate portion can be a plastic plate portion.

[0392] In some embodiments, the second shell 612 includes a metal plate portion and an injection-molded plate portion. The metal plate portion can be bonded to the injection-molded plate portion, which is a simple connection method; or, the metal plate portion can be used as an insert during injection molding of the injection-molded plate portion, integrally formed with the injection-molded plate portion, which provides a stable and reliable connection. The injection-molded plate portion can be a plastic plate portion.

[0393] In some embodiments, the second enclosure 610 is a metal enclosure, which helps to improve structural strength and reduce the wall thickness of the enclosure, thereby facilitating the thinner design of the speaker.

[0394] For example, the first shell 611 is a metal shell, which can reduce the wall thickness of the first shell 611 and help reduce the overall thickness of the second speaker 600.

[0395] For example, the second shell 612 is a metal shell, which can reduce the wall thickness of the second shell 612 and help reduce the overall thickness of the second speaker 600; and when at least a portion of the second shell 612 is exposed on the outside of the rear shell 200, it helps improve the appearance of the display device.

[0396] In some embodiments, the fourth speaker 620 is installed in a region of the second housing 610 other than the metal plate portion. For example, the fourth speaker 620 is installed in the injection-molded plate portion. This arrangement facilitates the formation of connecting posts in other regions of the metal plate portion. The formation of the connecting posts is simple, and the installation of the fourth speaker 620 is simple and reliable.

[0397] In some embodiments, the magnetic circuit structure of the fourth speaker 620 is in contact with the metal plate portion. For example, the U-shaped magnetic yoke 627 of the fourth speaker 620 is in contact with the metal plate portion to expand the heat dissipation area of ​​the fourth speaker 620 and thereby improve the heat dissipation effect of the fourth speaker 620.

[0398] Combination Figure 29 In some embodiments, the first housing 611 is provided with an opening 6110 communicating with the third acoustic cavity 601, so that at least a portion of the fourth speaker 620 is exposed on the outside of the second housing 610. For example, the bracket 622 of the fourth speaker 620 is exposed on the outside of the second housing 610 through the opening 6110, which helps to improve the heat dissipation effect of the fourth speaker 620.

[0399] In some embodiments, at least a portion of the bracket 622 is located within the opening 6110, such that at least a portion of the bracket 622 is embedded within the opening 6110, which can reduce the independent space required for the bracket 622, thereby helping to reduce the overall thickness of the second speaker 600.

[0400] In some embodiments, the second housing 612 is provided with a second sound outlet hole 6120 communicating with the third acoustic cavity 601, so that at least a portion of the fourth speaker 620 is exposed on the outside of the second housing 610. For example, the first cone 623 and the second cone 624 of the fourth speaker 620 are exposed on the outside of the second housing 610 through the sound outlet hole, facilitating the outward propagation of sound waves.

[0401] In some embodiments, the first diaphragm 623 and the second diaphragm 624 are arranged coaxially with the second sound outlet 6120, which facilitates the outward propagation of sound waves and prevents the second shell 612 from blocking the vibrating part of the diaphragm and affecting the transmission of sound waves.

[0402] In some embodiments, the second sound outlet 6120 is arranged coaxially with the opening 6110, which facilitates the simplification of the installation of the fourth speaker 620.

[0403] The amplitude and airflow of the fourth speaker 620 are usually relatively large. Therefore, there is a gap between the second speaker 600 and the rear shell 200 of the display device to reduce the vibration force acting on the rear shell 200 and reduce the vibration of the rear shell 200.

[0404] However, the gap between the second speaker 600 and the rear shell 200 makes the installation of the second speaker 600 take up a lot of space, which is not conducive to the thin design of the display device and its second speaker 600.

[0405] Combination Figures 30 to 31 In some embodiments, a first sound outlet hole 240 is provided on the rear housing 200 so that at least a portion of the second speaker 600 is exposed on the outside of the rear housing 200 through the first sound outlet hole 240. The second sound outlet hole 6120 of the second speaker 600 is opposite to at least a portion of the first sound outlet hole 240 so that sound waves can be transmitted outward through the first sound outlet hole 240.

[0406] For example, in combination Figure 33 In the fourth speaker 620, the first cone 623 and the first sound outlet 240 are opposite each other along the vibration direction. This arrangement allows the first sound outlet 240 to provide vibration space for the first cone 623, reducing the gap between the second speaker 600 and the rear shell 200, and reducing the installation space occupied by the second speaker 600. Moreover, the small size of the first sound outlet 240 on the rear shell 200 helps to ensure the structural strength of the rear shell 200. For example, the first sound outlet 240 can be a circular hole.

[0407] For example, in combination Figure 34 At least a portion of the second enclosure 610 and the first cone 623 and second cone 624 of the fourth speaker 620 are aligned with the first sound outlet 240 along the vibration direction. This arrangement exposes at least a portion of the second shell 612 of the second enclosure 610 to the outside of the rear shell 200, facilitating sound wave transmission. Furthermore, the large size of the first sound outlet 240 on the rear shell 200 helps save material and reduce material costs. For example, the first sound outlet 240 can be a rectangular hole, which has a simple structure and is easy to manufacture.

[0408] The portion of the second shell 612 exposed outside the rear shell 200 may be provided with curved textures to improve the appearance of the display device. An inclined surface is provided near the edge of the second sound outlet 6120, and the texture provided on the inclined surface may be the same as the texture of the subsequent outer cover 621, which helps to improve the appearance of the display device.

[0409] Because the first sound outlet hole 240 is provided on the rear cover 200, the cone of the fourth speaker 620 is exposed, which is not only easy to damage, but also easy to accumulate dust.

[0410] In some embodiments of this application, such as Figure 31 As shown, the fourth speaker 620 also includes an outer cover 621, which serves as an exterior or decorative element of the fourth speaker 620 and is exposed on the outside of the rear housing 200.

[0411] The outer cover 621 is connected to the cone of the woofer, and at least part of the outer cover 621 is opposite to the cone of the fourth speaker 620. In this way, the outer cover 621 can protect the cone and vibrate under the action of the cone to radiate sound waves.

[0412] In some embodiments of this application, the fourth speaker 620 has a first diaphragm 623 and a second diaphragm 624. The outer cover 621 is connected to the first diaphragm 623, and the outer cover 621 is connected to the connection between the first diaphragm 623 and the second diaphragm 624. The connection between the first diaphragm 623 and the second diaphragm 624 has relatively high rigidity, which is beneficial to improving the stability of the connection of the outer cover 621.

[0413] In some embodiments, the side of the outer cover 621 facing away from the cone has a convex curved surface structure, such as a convex arc surface, which has a large surface area and is conducive to radiating sound waves.

[0414] In some embodiments, the outer cover 621 is provided with CD-pattern on the side facing away from the cone, which can improve the rigidity of the outer cover 621 and reduce the deformation of the outer cover 621 itself when the cone vibrates, thus affecting the sound characteristics.

[0415] Among them, CD texture is a texture similar to that of a compact disk, which is obtained by removing material from the side of the outer cover 621 away from the diaphragm using a precision CD texture machine.

[0416] In some possible implementations, the outer cover 621 is circular, matching the shape of the cone of the fourth speaker 620, which helps to better protect the cone and radiate sound waves.

[0417] In some embodiments, the outer cover 621 is bonded to the cone of the fourth speaker 620. For example, in some embodiments of this application, the outer cover 621 is bonded to the first cone 623, and the connection method is simple.

[0418] like Figure 35 As shown, the first diaphragm 623 includes a folded ring 6231, an outer connecting edge 6232, and an inner connecting edge 6233. The folded ring 6231 is U-shaped, with its inner side connected to the inner connecting edge 6233 and its outer side connected to the outer connecting edge 6232. The outer connecting edge 6232 is fitted against the bracket 622, and the inner connecting edge 6233 is connected to the second diaphragm 624. The folded ring 6231 vibrates under the influence of the second diaphragm 624.

[0419] The outer cover 621 is bonded to the inner connecting edge 6233. Since the inner connecting edge 6233 is connected to the second cone 624, it has relatively high rigidity, which helps to ensure the stability of the connection between the outer cover 621 and the first cone 623.

[0420] If the outer cover 621 is bonded to the folding ring 6231, the connection stability of the outer cover 621 will be poor because the folding ring 6231 is relatively soft.

[0421] If the outer cover 621 is connected to the outer connecting edge 6232, and the outer connecting edge 6232 is attached to the bracket 622 and does not move, while the outer cover 621 does not move, it will block the sound waves and affect the sound effect of the subwoofer 620.

[0422] Continue to refer to Figure 35 The outer cover 621 includes a cover plate 6211 and a connecting portion 6212. The connecting portion 6212 is disposed on the side of the cover plate 6211 facing the cone of the fourth speaker 620, and the connecting portion 6212 is connected to the first cone 623. The connecting portion 6212 is annular, so that the outer cover 621 matches the limited connection area of ​​the first cone 623.

[0423] like Figure 35 As shown, in some possible implementations, the second housing 612 has a raised texture 6126 on the side facing the first diaphragm 623, and the raised texture 6126 abuts against the outer connecting edge 6232 of the first diaphragm 623. When the fourth speaker 620 is fixed to the second housing 612, the outer connecting edge 6232 is pressed against the raised texture 6126. By providing the raised texture 6126, it is beneficial to provide positioning for the engagement between the first diaphragm 623 and the second housing 612, increase the friction between the outer connecting edge 6232 and the second housing 612, and reduce the possibility of movement between the first diaphragm 623 and the second housing 612.

[0424] Combination Figure 33 In some embodiments, the rear cover 200 is provided with a first sound outlet 240 so that the outer cover 621 is exposed on the outside of the rear cover 200.

[0425] Combination Figure 31 The outer cover 621 is located inside the first sound outlet hole 240, which provides space for the vibration of the outer cover 621; moreover, the outer cover 621 does not need to occupy space in the thickness direction of the display device, which helps to reduce the overall thickness of the second speaker 600.

[0426] In some embodiments, the shape of the first sound outlet 240 is the same as the shape of the outer cover 621, which allows the outer cover 621 to be exposed while also covering and protecting the internal structure of the fourth speaker 620. For example, the first sound outlet 240 is circular.

[0427] In some embodiments, the diameter of the first sound outlet 240 is the same as the diameter of the outer cover 621, thus preventing the internal structure of the fourth speaker 620 from being exposed.

[0428] In some embodiments, the diameter of the first sound outlet hole 240 is larger than the diameter of the outer cover 621, so that there is a gap between the outer cover 621 and the hole wall of the first sound outlet hole 240, which can compensate for processing errors, assembly errors, etc., and improve the convenience of installation and matching between the outer cover 621 and the first sound outlet hole 240.

[0429] For example, the gap between the outer cover 621 and the wall of the first sound outlet hole 240 can be 0.5mm, which can compensate for processing errors, assembly errors, etc., and the small gap has little impact on the appearance.

[0430] Because the bonding area between the outer cover 621 and the first cone 623 is small, the connection between the outer cover 621 and the cone is unstable, and the outer cover 621 is prone to coming unglued and falling off.

[0431] Therefore, in some embodiments, combining Figure 31 and Figure 35 The outer cover 621 is snapped into the cone of the fourth speaker 620, making the connection between the outer cover 621 and the cone more stable and reliable.

[0432] In some embodiments of this application, the connecting portion 6212 of the outer cover 621 is engaged with the inner connecting edge 6233 of the first diaphragm 623. The inner connecting edge 6233 of the first diaphragm 623 has a large hardness, which helps to improve the stability of the engagement between the connecting portion 6212 and the inner connecting edge 6233.

[0433] Combination Figure 35 In some embodiments, the inner connecting edge 6233 of the first diaphragm 623 is provided with a recess 6234, and the connecting part 6212 of the outer cover 621 is engaged with the recess 6234. The structure is simple and the connection method is reliable.

[0434] A recessed groove 6234 is formed on the inner side of the inner connecting edge 6233, which is simple to process. Due to the elasticity of the first diaphragm 623 and the elastic deformation of the sidewall of the recessed groove 6234, the connecting part 6212 and the recessed groove 6234 are engaged.

[0435] In some embodiments, the connecting part 6212 is engaged with the recess 6234, and the connecting part 6212 is bonded to the bottom wall of the recess 6234, further improving the stability and reliability of the connection between the outer cover 621 and the first diaphragm 623.

[0436] The speaker can produce different sound effects in different positions on the display device. The following describes the positional arrangement of the speaker relative to the rear shell of the display device in some embodiments of this application with reference to the accompanying drawings.

[0437] For ease of description, the rear shell 200 is defined to have a vertical centerline O1 and a horizontal centerline O2, wherein the vertical centerline O1 extends vertically and the rear shell 200 has a top side and a bottom side that are vertically opposite; the horizontal centerline O2 extends horizontally and the rear shell 200 has a left side and a right side that are horizontally opposite.

[0438] In some embodiments, such as Figure 36 As shown, Figure 5 and Figure 6 The diagram shows two first speakers 300, located on the bottom side of the rear housing 200. The two first speakers 300 are positioned below the horizontal center line O2 and near the bottom edge of the rear housing 200. The first sound outlets 302 of the two first speakers 300 face downwards, allowing sound to be emitted downwards. The two first speakers 300 are arranged symmetrically about the vertical center line O1. Furthermore, the third speaker 340, which emits bass, is located close to the vertical center line O1. This arrangement provides a larger distance between the first speakers 320 and the second speakers 330 of the two first speakers 300, which helps to improve the sound field width and stereo effect of the display device.

[0439] In some embodiments, such as Figure 37 As shown, the display device includes a subwoofer speaker 710 to improve the low-frequency sound of the display device. The subwoofer speaker 710 can be a subwoofer speaker with a sound guide baffle, as described in related technologies; or, the subwoofer speaker 710 is as follows: Figure 27 The second speaker 600 is shown.

[0440] Typically, the second speaker 600 occupies a large area. The second speaker 600 can be installed in the center of the rear shell 200. For example, the two second speakers 600 are arranged horizontally at intervals, and the two second speakers 600 are arranged symmetrically about the vertical center line O1 and the horizontal center line O2, respectively.

[0441] Continue to refer to Figure 37 The display device also includes two first speakers 300, which can be used as follows: Figure 17 , Figure 18 or Figure 20 The structure shown has no woofer inside the first speaker 300. The two first speakers 300 are located below the horizontal center line O2 and near the bottom edge of the rear housing 200. The first sound outlets 302 of the two first speakers 300 face downwards, causing the two first speakers 300 to emit sound downwards. The two first speakers 300 are arranged symmetrically about the vertical center line O1. The two first speakers 300 can form the left and right channels and / or the center channel of the display device.

[0442] In some embodiments, such as Figure 38 As shown, in Figure 36or Figure 37 Based on the structure shown, the display device also includes surround sound speakers 720, which helps to improve the surround sound and stereo effect of the display device. Surround sound speakers 720 are arranged on the left and right sides of the rear shell 200, forming the surround sound channels of the display device. These two surround sound speakers 720 are symmetrical about the vertical center line O1 and about the horizontal center line O2, ensuring the symmetry of sound wave transmission.

[0443] The surround channel speakers 720 emit sound from the sides. Specifically, the sound outlet of the left surround channel speaker 720 faces left, causing it to emit sound to the left; the sound outlet of the right surround channel speaker 720 faces right, causing it to emit sound to the right.

[0444] The surround channel speaker 720 can be a surround channel speaker of the related art, or the surround channel speaker 720 can adopt the first speaker 300 of some embodiments of this application, for example... Figure 19 The number and power of the two first speakers 300 forming the surround sound channel shown in the diagram may differ from those of the first speaker 300 arranged at the bottom.

[0445] In some embodiments, such as Figure 38 As shown, the display device also includes two overhead speakers 730. The overhead speakers 730 can be overhead speakers of related technologies, or they can be first speakers 300 as described in some embodiments of this application. These first speakers 300 may not have a woofer, and their first sound outlets face upwards, causing the overhead speakers to emit sound upwards. These two first speakers 300 are arranged above the horizontal center line O2 and near the top edge of the rear housing 200. The two first speakers 300 are symmetrically arranged about the vertical center line O1. This arrangement improves the stereo effect of the display device.

[0446] It should be noted that when the first speaker 300 is installed in different positions on the rear cover 200, the power, frequency, etc. of its first speaker 320 and second speaker 330 may be different.

[0447] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0448] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A display device, characterized in that, include: A display module having a display side and a back side opposite each other along the thickness direction of the display device, wherein the display side of the display module faces the front side of the display device, and the display module includes: Display panel, the display panel being configured to display image information; A backlight assembly configured to provide backlighting for the display panel; A backplate configured to provide a mounting position for the backlight assembly; The rear cover is an exterior component of the display device and is located on the back side of the display module; wherein, the back plate is located between the backlight assembly and the rear cover; A side frame, connecting the edge between the rear shell and the display module, and a sound outlet is provided on the side frame; A first speaker is mounted on the back panel and is located between the display module and the rear shell. The first speaker includes: Box shell, A first loudspeaker, the sound output direction of the first loudspeaker facing the rear housing, and a gap between the diaphragm of the first loudspeaker and the rear housing; wherein, the housing provides a mounting position for the first loudspeaker; A first sound guide is located between the enclosure and the rear shell, and contacts both the enclosure and the rear shell respectively; the first sound guide, the enclosure, and the rear shell together form a first acoustic cavity, and the first loudspeaker is located within the first acoustic cavity; the first sound guide forms at least a portion of a first sound outlet, and the first sound outlet communicates with the first acoustic cavity; the first acoustic cavity, the first sound outlet, and the sound hole form a sound outlet channel; the first sound guide is elastic, so that the enclosure and the rear shell are elastically connected; The first sound guide is used to guide sound waves toward the rear shell to the side, and at least a portion of the sound waves of the first speaker are emitted through the first sound outlet under the constraint of the first sound guide and the rear shell, so as to realize the side sound output of the first speaker; wherein, the first speaker has a front side and a rear side along the thickness direction of the display device, and the first sound outlet is disposed on the other side of the first speaker besides the front side and the rear side.

2. The display device according to claim 1, characterized in that, The first sound guide includes an elastic portion, which contacts the enclosure or the rear shell; or, The first sound guide is an elastic element.

3. The display device according to claim 1, characterized in that, The first sound guide is connected to the housing, and / or the first sound guide is connected to the rear housing.

4. The display device according to claim 3, characterized in that, The first sound guide is adhered to the housing, and / or the first sound guide is adhered to the rear housing; or... The first sound guide is sandwiched between the enclosure and the rear shell, and the enclosure and / or the rear shell are provided with a limiting part that cooperates with the first sound guide.

5. The display device according to any one of claims 1-4, characterized in that, The first sound guide has a break to partially surround the outside of the first loudspeaker, and the break forms at least a portion of the first sound outlet.

6. The display device according to any one of claims 1-4, characterized in that, The first sound guide is a closed ring, and the side of the first sound guide facing the housing is recessed towards the rear housing to form a notch, the notch forming at least a portion of the first sound outlet.

7. The display device according to any one of claims 1-4, characterized in that, The enclosure has a mounting groove for accommodating the first speaker. The side wall of the mounting groove has an opening, which together with the first sound guide forms the first sound outlet.

8. The display device according to any one of claims 1-4, characterized in that, The first sound guide includes multiple sound guide strips, which are spliced ​​together to form the first sound guide.

9. The display device according to any one of claims 1-4, characterized in that, The display device further includes a second speaker, which is mounted on the housing and located within the first acoustic cavity; at least a portion of the sound wave frequency of the second speaker is different from the sound wave frequency of the first speaker. The display device further includes a second sound guide, which is located inside the first sound cavity and contacts the rear shell and the casing respectively; the second sound guide, the rear shell, and the casing together form a second sound cavity, and the second sound guide forms a second sound outlet on one side of the first sound outlet; the second speaker is located inside the second sound cavity.

10. The display device according to any one of claims 1-4, characterized in that, A third speaker is mounted on the side of the enclosure facing the rear shell, and the diaphragm of the third speaker is spaced apart from the rear shell.

11. The display device according to any one of claims 1-4, characterized in that, The inner surface of the first sound guide facing the first sound cavity is a plane.

12. The display device according to any one of claims 1-4, characterized in that, The thickness of the first sound guide is greater than or equal to 2mm and less than or equal to 4mm.

13. The display device according to any one of claims 1-4, characterized in that, The width of the first sound guide is greater than or equal to 8mm and less than or equal to 10mm.

14. The display device according to claim 9, characterized in that, The second speaker is a tweeter, and the first speaker is a full-range speaker.

15. The display device according to any one of claims 1-4, characterized in that, The first speaker is located on the bottom side of the rear shell, and the first sound outlet faces downward, so that the first speaker emits sound downward.

16. The display device according to any one of claims 1-4, characterized in that, The shell is plate-shaped, and the rear shell and the portion of the shell opposite each other are plate-shaped.

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