Display device

Abstract

Some embodiments of the utility model relate to a display technology. Especially to a display device. The display equipment comprises a display module and a first sound box, the first sound box comprises a first box body, a first loudspeaker and a damping component, a sound outlet hole is formed in part of the box wall of the first box body, a vibrating diaphragm of the first loudspeaker is opposite to the box wall provided with the sound outlet hole, and a gap is formed between the vibrating diaphragm and the box wall provided with the sound outlet hole, so that part of sound waves are transmitted out from the sound outlet hole, and the sound waves are transmitted out from the first sound box. The reflection path of the sound wave in the sound cavity is reduced, so that the back-and-forth reflection of the sound wave in the first sound cavity is reduced, the peak valley of a sound frequency response curve in some frequency bands is weakened, the sound smoothness is improved, and the sound quality is improved. And the damping part is arranged to cover the sound outlet hole, so that a damping effect is provided for air flow in the sound outlet hole, the possibility that airflow sound appears in the sound outlet hole is reduced, the wind noise is reduced, and the sound quality of the display equipment is improved.

Description

Technical Field

[0001] Some embodiments of the present application relate to display technology, and more particularly to a display device. Background Art

[0002] With the development of the display device technology field, users have gradually increased their requirements for the visual and auditory effects of display devices such as televisions. Display devices such as televisions have a sound box including a box body and a speaker arranged in the box body. When the speaker box produces sound, there is airflow sound, which causes noise in the sound of the display device, making it difficult to achieve good sound quality. Utility Model Content

[0003] Some embodiments of the present application provide a display device to improve the sound quality of the display device.

[0004] In order to achieve the above objectives, some embodiments of the present application provide a display device, which includes:

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

[0006] A first speaker is installed on the back side of the display module, and the first speaker includes:

[0007] A first box body is structured to form a first sound cavity; a plurality of sound outlet holes are arranged on a part of the box wall of the first box body;

[0008] A first speaker is installed in the first sound cavity; a diaphragm of the first speaker is opposite to and spaced from a wall of the first box body provided with the sound outlet hole;

[0009] The damping component is arranged on the box wall of the first box body where the sound outlet hole is arranged; the damping component covers at least a part of the sound outlet hole and is configured to provide a damping effect on the gas flow in the sound outlet hole.

[0010] In the display device of some embodiments of the present application, a sound hole is arranged on part of the wall of the first box body, and the diaphragm of the first speaker is opposite to the wall of the box with the sound hole and there is a gap, so that part of the sound waves are transmitted from the sound hole, reducing the reflection path of the sound wave in the sound cavity, thereby reducing the back and forth reflection of the sound wave in the first sound cavity, thereby weakening the peaks and valleys of the sound and audio response curve in certain frequency bands, improving the smoothness of the sound, and thus improving the sound quality. In addition, by arranging a damping component to cover the sound hole, a damping effect is provided for the gas flow in the sound hole, reducing the possibility of airflow sound in the sound hole, reducing wind noise, and improving the sound quality of the display device.

[0011] In some embodiments of the present application, the box wall of the first box body provided with the sound outlet has an inner surface facing the first sound cavity and an outer surface opposite to the inner surface; the damping component is provided on the inner surface of the box wall; and / or the damping component is provided on the outer surface of the box wall; and / or the damping component is provided in the sound outlet.

[0012] In some embodiments of the present application, the damping component is a sheet-like structure.

[0013] In some embodiments of the present application, the damping component is a mesh cover with holes, and the mesh wire of the mesh cover covers at least a portion of the sound outlet hole.

[0014] In some embodiments of the present application, the damping component is a mesh, and the mesh area of ​​the mesh is smaller than the cross-sectional area of ​​the sound outlet hole.

[0015] In some embodiments of the present application, the damping component is bonded to the box wall of the first box body where the sound outlet hole is provided.

[0016] In some embodiments of the present application, the first box body has a front box wall, a rear box wall and a circumferential side wall, the front box wall and the rear box wall are opposite to each other and have a gap, the front box wall faces the display module of the display device, and the rear box wall is provided with the sound outlet; the circumferential side wall is connected between the front box wall and the rear box wall, and the first sound outlet is provided on the circumferential side wall.

[0017] In some embodiments of the present application, the display device also includes a rear shell, which is located on the side of the first speaker away from the display module of the display device, and there is a gap between the rear shell and the first box body; the sound outlet is provided on the box wall of the first box body opposite to the rear shell.

[0018] In some embodiments of the present application, the display device also includes a rear shell, which is located on the back side of the display module of the display device; the first box body includes a box shell, a first sound guide and the rear shell, the box shell is located between the rear shell and the display module, the box shell and the rear shell are elastically connected by the first sound guide, and enclosed to form the first sound cavity; the sound outlet is provided with the area of ​​the rear shell opposite to the diaphragm of the first speaker.

[0019] In some embodiments of the present application, the first sound guide member includes an elastic portion, and the elastic portion is in contact with the box shell or the rear shell.

[0020] In some embodiments of the present application, the first sound guide member is an elastic member.

[0021] In some embodiments of the present application, the first sound guide component is connected to the box shell, and / or the first sound guide component is connected to the rear shell.

[0022] In some embodiments of the present application, at least a portion of the first box body is a metal plate portion.

[0023] In some embodiments of the present application, the magnetic yoke of the first speaker is in contact with the metal plate portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the implementation methods of some embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings described below are some embodiments of the present application, and a person skilled in the art can also obtain other drawings based on these drawings.

[0025] Figure 1 A schematic diagram of a cross section of a speaker in a display device in the related art;

[0026] Figure 2 A schematic diagram of an operation scenario between a display device and a control device in some embodiments of the present application;

[0027] Figure 3 A configuration block diagram of a display device according to some embodiments of the present application;

[0028] Figure 4 A cross-sectional schematic diagram of a display device according to some embodiments of the present application;

[0029] Figure 5 An exploded view of a speaker according to some embodiments of the present application;

[0030] Figure 6 A rear view of a speaker according to some embodiments of the present application;

[0031] Figure 7 for Figure 6 AA section view in;

[0032] Figure 8 for Figure 6 BB section view in;

[0033] Fig. 9 A partial cross-sectional view of a speaker and a rear housing according to some embodiments of the present application;

[0034] Fig.10 This is a schematic structural diagram of a first sound guide member in some embodiments of the present application;

[0035] Fig.11 A partial connection diagram of the first sound guide member of some embodiments of the present application;

[0036] Fig.12 This is a schematic diagram of the connection between the first sound guide member and the box shell in some embodiments of the present application;

[0037] Fig.13 This is a schematic diagram of the connection between the first sound guide member and the box shell in some embodiments of the present application;

[0038] Fig.14 A schematic cross-sectional view of a first sound guide member of some embodiments of the present application;

[0039] Fig.15 A schematic cross-sectional view of a first sound guide member of some embodiments of the present application;

[0040] Fig.16 A front view of a first sound guide member according to some embodiments of the present application;

[0041] Fig.17 A rear view of a first speaker according to some embodiments of the present application;

[0042] Fig.18 A rear view of a display device with a rear cover removed according to some embodiments of the present application;

[0043] Fig.19 A schematic diagram of the structure of a first speaker of a display device according to some embodiments of the present application;

[0044] Fig. 20 A schematic cross-sectional view of a display device according to some embodiments of the present application;

[0045] Fig.21 A schematic diagram of the arrangement of sound outlet holes in some embodiments of the present application;

[0046] Fig. 22 A schematic diagram of the arrangement of sound outlet holes in some embodiments of the present application;

[0047] Fig.23 A schematic cross-sectional view of a first speaker box according to some embodiments of the present application;

[0048] Fig.24 This is a schematic diagram of the structure of the damping component in some embodiments of the present application.

[0049] Description of reference numerals:

[0050] 001: sound guide baffle; 002: box shell; 003: speaker; 004: back shell; 005: display module;

[0051] 10: display device; 20: smart device; 30: server; 40: control device; 41: tuner and 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;

[0052] 100: display module; 200: rear shell; 201: sound outlet; 210: damping component; 211: first layer of mesh; 212: second layer of mesh; 250: side frame; 251: sound outlet; 300: first speaker; 30a: first box body; 31: front box wall; 32: rear box wall; 33: circumferential side wall; 301: first sound cavity; 302: first sound outlet; 303: sound unit; 310: box shell; 311: fixing hole; 312: elastic ring; 313: mounting groove; 3131: groove side wall; 314: limiting part; 320: first speaker; 321: diaphragm; 330: second speaker; 340: third speaker; 400: first sound guide member; 401: fracture; 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 member; 501: second sound cavity; 502: second sound outlet. DETAILED DESCRIPTION

[0053] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0054] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0055] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such products or devices.

[0056] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0057] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0058] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] With the development of display device technology, users have gradually increased their requirements for the visual and auditory effects of display devices such as televisions. Visually, thinning of display devices such as televisions is an industry trend. Auditorily, display devices usually use built-in speakers to output sound signals.

[0060] However, as display devices become thinner, the installation space of the speakers on the display devices becomes smaller and smaller, and the sound quality of the display devices becomes worse and worse, thus failing to meet user requirements.

[0061] In the related art, the speakers used in display devices usually output sound through physical vibration. The output volume is achieved by the diaphragm or vibrating body itself. There needs to be a vibration gap 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 must occupy the internal space of the display device, which is not conducive to the thinning of the display device.

[0062] In addition, due to the limited space inside the display device, the volume of the speaker cannot be increased arbitrarily, thus limiting the intensity of the sound field output by the speaker inside the display device. In display devices such as televisions, multiple groups of different speakers are usually set at different positions to create different sound field patterns, which increases the number of speakers required for the display device, making the problem of speakers occupying the internal space of the display device more serious.

[0063] Due to the above reasons, the speakers used in the display devices in the related art have the disadvantages of occupying space and insufficient output sound field strength. Therefore, how to solve the above problems through structural improvement has become one of the important issues to meet the dual requirements of hearing and vision of display devices.

[0064] The sound-generating structure in the display device is a speaker. Figure 1 The cross-sectional schematic diagram of a speaker in a display device in the related art is shown, and the speaker is installed on the side of the rear shell 004 of the display device facing the display module 005.

[0065] The sound box includes a box shell 002, a sound guide baffle 001, and a speaker 003, wherein the box shell 002 is close to the display module 005, and the sound guide baffle 001 is close to the rear shell 004; the box shell 002 and the sound guide baffle 001 are both rigid components, and the two together enclose a receiving cavity; the speaker 003 is located in the receiving cavity and is installed on the box shell 002. As the diaphragm of the speaker 003 vibrates toward the rear shell 004, the sound guide baffle 001 guides the sound waves of the speaker 003, for example, to the side of the display device.

[0066] There is a gap a between the sound guide baffle 001 and the diaphragm of the speaker 003, there is also a gap b between the sound guide baffle 001 and the rear shell 004, and the sound guide baffle 001 itself has thickness, which results in a larger thickness of the entire speaker box.

[0067] Since the frame of the display device in the related art is narrow, there is not enough space to arrange the speaker. Therefore, the speaker must be set on the back of the display module. The diaphragm of the speaker has a large diameter, and the surface where the diameter of the diaphragm of the speaker is located is parallel to the display surface of the display device. Therefore, the diaphragm requires a certain vibration interval, so that the interval a cannot be omitted; since the speaker emits sound backwards, it is necessary to set a guiding member (such as a sound guide baffle 001) to guide the sound waves, that is, the guiding member cannot be omitted. In order to avoid the contact between the guiding member and other components of the display device (such as the rear shell) and generate noise, a gap also needs to be reserved between the guiding member and other components, that is, the interval b cannot be omitted. In this way, the speaker needs to provide a chamber to install the speaker, and provide a vibration interval and installation space for the guiding member, resulting in the thickness of the speaker cannot be reduced.

[0068] The researchers and developers of this application have conducted a detailed study on the components in the structure of the speaker that realize vibration and sound generation, and re-examined and analyzed the necessity of each component for the realization of the speaker function: for the speaker structure, the speaker is indispensable as a sound-generating element; it is necessary to provide an installation position for the speaker; it is necessary to form a sound cavity and side sound outlets, and provide a vibration interval for the speaker.

[0069] Through analysis, the R&D personnel of this application believe that the attached Figure 1 The sound guide baffle 001 in the structure can be omitted, and omitting the sound guide baffle 001 can save the thickness of the sound guide baffle itself and the interval b, which contributes greatly to reducing the thickness of the speaker. So, how to form a sound wave guiding structure?

[0070] The researchers of this application continue to study the display device and its speaker structure in the related technology. The rear shell of the display device, as an appearance part, plays the role of shielding the internal structure of the display device, and its structural stability is very important. Therefore, there is usually a gap between the rear shell and the speaker, which can not only prevent the sound wave vibration of the speaker from affecting the structural stability of the whole device, but also reduce the possibility of noise generated by the vibration of the rear shell.

[0071] The researchers of this application continue to analyze the speaker structure in related technologies, such as Figure 1 As shown, the sound guide baffle 001 is opposite to the rear shell 004 and there is a gap between them. At least part of the rear shell 004 is plate-shaped, similar to the structure of the sound guide baffle 001. Therefore, the researchers of this application believe that the sound guide baffle 001 can be replaced by the rear shell 004 to guide the sound waves so that the sound is emitted from the side of the speaker. But this brings a new problem. The rear shell is subjected to the vibration of sound waves. How to reduce the possibility of noise and ensure the acoustic effect?

[0072] The researchers of this application conducted experiments by directly connecting the box shell to the back shell and found that the back shell vibrated greatly, which not only affected the stability of the whole structure, but also caused poor acoustic effects of the display device. This is because both the box shell and the back shell are rigid parts. Under the action of vibration, the two are in hard contact and generate noise. In addition, the box shell, as the installation part of the speaker, and the back shell, as the appearance part, both need to have rigid characteristics.

[0073] Therefore, the researchers of the present application considered realizing an elastic connection between the box shell and the back shell by means of an elastic component; considering the closedness of the accommodating cavity at positions other than the sound outlet, in order to reduce the possibility of sound leakage at positions other than the sound outlet, the researchers of the present application arranged an elastic sound guide between the box shell and the back shell, and formed a sound cavity with a sound outlet by utilizing the back shell, the sound guide and the box shell. The sound guide closes the positions between the box shell and the back shell except the sound outlet, thereby reducing the possibility of sound leakage in the sound cavity and concentrating the sound waves as much as possible from the sound outlet. , which is beneficial to improving the acoustic effect; when the sound wave is transmitted to the back shell, due to the elasticity of the sound guide, the sound guide elastically deforms to absorb part of the sound wave energy on the back shell, reduce the vibration force of the back shell, and ensure the stability of the back shell connection structure; it is beneficial to reduce the possibility of noise generated by vibration of the back shell and ensure the acoustic effect; and, when the sound wave is transmitted to the sound guide, the sound guide can not only guide the sound wave to the sound outlet, but also absorb part of the sound wave energy and reduce the reflection of the sound wave, so that the sound response in each frequency band is smoother and the sound quality effect is better.

[0074] 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.

[0075] Therefore, the speaker box of the display device of the present application is not only thin in thickness, which is conducive to the lightweight design of the display device, but also has good sound quality.

[0076] The following will be combined with the drawings in some embodiments of the present application to clearly and completely describe the technical solutions in some embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0077] The display device provided in the embodiments of the present application may have various implementation forms, for example, it may be a television, a smart television, a monitor, an electronic bulletin board, an electronic table, etc. Figure 2 and Figure 3 This is a specific implementation of the display device of the present application.

[0078] Figure 2 FIG. 1 is a schematic diagram of an operation scenario between a display device and a control device according to an exemplary embodiment of the present application. Figure 2As shown, the user can operate the display device 10 through the smart device 20 or the control device 40. In some embodiments, the display device 10 also communicates data with the server 30. The display device 10 can be allowed to communicate through a local area network (LAN), a wireless local area network (WLAN) and other networks. The server 30 can provide various content and interactions to the display device 10. The server 30 can be a cluster or multiple clusters, and can include one or more types of servers.

[0079] Figure 3 A schematic diagram showing the structure of a display device in an example is shown in FIG. Figure 3 In some embodiments, the display device 10 includes a tuner-demodulator 41; the tuner-demodulator 41 receives broadcast television signals through wired or wireless reception, and demodulates audio and video signals, such as and EPG data signals, from multiple wireless or wired broadcast television signals.

[0080] In some embodiments, the display device 10 includes a communicator 42; the communicator 42 is a component configured to communicate with an external device or server according to various communication protocol types. For example, the communicator 42 may include at least one of a Wifi module, a Bluetooth module, a wired Ethernet module, or other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display device 10 can establish transmission and reception of control signals and data signals with the control device 40 or the server 30 through the communicator 42.

[0081] In some embodiments, the display device 10 includes a detector 43; the detector 43 is configured to collect signals of the external environment or the external interaction. For example, the detector 43 includes a light receiver, which is configured as a sensor for collecting the intensity of ambient light; or, the detector 43 includes an image collector, such as a camera, which can be configured to collect external environment scenes, user attributes or user interaction gestures, or, the detector 43 includes a sound collector, such as a microphone, which is configured to receive external sounds.

[0082] 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, any one or more of the following interfaces: a high-definition multimedia interface (HDMI), an analog or digital high-definition component input interface (component), a composite video input interface (CVBS), a USB input interface (USB), an RGB port, etc. It may also be a composite input / output interface formed by the above multiple interfaces.

[0083] In some embodiments, the display device 10 includes a display 46; the display 46 includes a display screen component configured to present a picture, and a driving component that drives the image display, and is configured to receive an image signal output from a controller to display video content, image content, and a menu control interface component and a user control UI interface. The display 46 can be a liquid crystal display, an OLED display, and a projection display, and can also be a projection device and a projection screen.

[0084] 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; in some embodiments, the display device 10 includes at least one of a user interface 411. The user interface 411 may be configured to receive a control signal from a control device 40 (such as an infrared remote controller, etc.).

[0085] 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; in some embodiments, the controller includes a first interface to an nth interface configured for input / output signals.

[0086] In some embodiments, the controller 45 and the tuner-demodulator 41 may be located in different separate devices, that is, the tuner-demodulator 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.

[0087] 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 the 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.

[0088] In some embodiments, the controller includes a central processing unit (CPU), a video processor, an audio processor, a graphics processing unit (GPU), RAM Random Access Memory (RAM), ROM (Read-Only Memory, ROM), and at least one of a first interface to an nth interface configured as input / output, a communication bus (Bus), etc.

[0089] Some embodiments of the present 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 sky side, a ground side, a left side, a right side, a front side, and a back side. The left side and the right side of the display device 10 refer to the left side and the right side of the user when the user faces the display surface of the display device 10. Accordingly, the side of the display device 10 facing the user is the front side, the side of the display device 10 facing away from the user is the back side, the upper side of the display device 10 is the sky side, and the lower side of the display device 10 is the ground side.

[0090] Combination Figure 4 The display device 10 provided in some embodiments of the present application includes 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.

[0091] In some embodiments, the display device 10 includes a rear case 200, which is located at the back side of the display module 100. The rear case 200 may be an outer shell of the display device 10, and the material of the rear case 200 may be plastic, metal, etc.

[0092] There may be a gap between the rear case 200 and the display module 100 , so that control components, cables, etc. of the display device 10 may be disposed between the rear case 200 and the display module 100 , thereby simplifying the appearance of the display device.

[0093] 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 housing 200 and the display module 100 .

[0094] Continue to refer to Figure 4 In some embodiments, the first sound box 300 includes a first speaker 320 , which is a sound-emitting element of the first sound box 300 .

[0095] In some embodiments, the first speaker 320 is a mid-range speaker. Exemplarily, the sound wave frequency range of the first speaker 320 is 200 Hz to 8 KHz, or the sound wave frequency range of the first speaker 320 is 200 Hz to 10 KHz.

[0096] In some embodiments, the first speaker 320 is a full-range speaker or a mid-high frequency speaker. Exemplarily, the sound wave frequency range of the first speaker 320 is 200 Hz to 20 KHz.

[0097] Exemplarily, the first speaker 320 may include a diaphragm, a magnetic group, a bracket, a basin, a voice coil, etc. The bracket is used to install the diaphragm, the magnetic group, the basin, and the voice coil, etc. The diaphragm vibrates in cooperation with the magnetic group and the voice coil, thereby producing sound.

[0098] In some embodiments, the first sound box 300 includes a box casing 310 , which is an outer shell of the first sound box 300 and provides a mounting position for the first speaker 320 .

[0099] In some embodiments, the box shell 310 may be an injection molded shell. For example, the box shell 310 is a plastic shell that is injection molded and is easy to prepare.

[0100] In some embodiments, the box shell 310 can be a metal shell with high structural strength. When having the same structural strength, the metal box shell 310 can be thinner, which is beneficial to reducing the thickness of the first speaker 300. Moreover, the metal box shell 310 can contact the magnetic group of the first speaker 320, which is beneficial to increase the heat dissipation area of ​​the first speaker 320, thereby improving the heat dissipation effect of the first speaker 320.

[0101] Of course, in some implementations, the box shell 310 may include a metal shell portion and a non-metal shell portion, and the metal shell portion may be bonded to the non-metal shell portion.

[0102] In some embodiments, the non-metallic shell portion can be an injection molded shell portion, such as a plastic shell portion, and the metal shell portion serves as an insert during injection molding of the injection molded shell portion, and is integrally formed with the injection molded shell portion. Not only does it have high structural strength, but the metal shell portion of the box shell 310 is in contact with the magnetic group of the first speaker 320. For example, the metal shell portion is in contact with the magnetic yoke of the first speaker 320, which is beneficial to improving the heat dissipation effect of the first speaker 320.

[0103] In some embodiments, the box shell 310 can be installed on the rear shell 200, with sufficient installation space and flexible connection methods.

[0104] In some embodiments, the box shell 310 is installed on the back plate of the display device, and the back plate of the display device is located between the backlight assembly and the rear shell 200, and the back plate can provide an installation position for the backlight assembly. In this way, the box shell 310 can be installed on the back plate, and then the rear shell 200 is assembled, so that the assembly of the display device is simple; and it is convenient to electrically connect the first speaker 300 to the main control board of the display device, and when the rear shell 200 is disassembled, there is no need to disassemble the first speaker 300, and the disassembly is simple and convenient.

[0105] In some embodiments, the box shell 310 and the back panel are elastically connected, and the sound wave vibration force on the box shell 310 is converted into an elastic force between the box shell 310 and the back panel, which can avoid the noise caused by the rigid contact between the box shell 310 and the back panel, and can reduce the vibration noise between the box shell 310 and the back panel, which is beneficial to improving the acoustic effect of the display device 10.

[0106] Exemplary, combined Figure 5 A fixing hole 311 is provided on the box shell 310, and fasteners such as screws and bolts pass through the fixing hole 311 and are threadedly connected to the threaded hole provided on the back plate. An elastic gasket is provided between the fastener and the box shell 310, and an elastic gasket is provided between the box shell 310 and the back plate to achieve an elastic connection between the box shell 310 and the back plate.

[0107] Exemplary, combined Figure 5 The box shell 310 is provided with a fixing hole 311, and an elastic ring 312 is provided in the fixing hole 311. The circumferential side surface of the elastic ring 312 is provided with an annular groove, so that the elastic ring 312 is sleeved on the edge of the fixing hole 311; the elastic ring 312 is provided with 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 box shell 310 and the back plate be elastically connected in the axial direction of the fixing hole 311, but also the box shell 310 and the fastener can be elastically connected in the circumferential direction of the fixing hole 311, so as to avoid rigid contact between the box shell 310 and the back plate, and also avoid rigid contact between the box shell 310 and the fastener.

[0108] In related technologies, for example Figure 1 In the structure shown, the box shell 002 is installed on the rear shell 004. Due to the existence of the sound guide baffle 001, the distance between the box shell 002 and the sound guide baffle 001 is relatively large, and the height of the column forming the threaded hole on the rear shell 004 is relatively large, which not only requires more materials, but also has great difficulty in molding and demoulding when the rear shell 004 is formed by injection molding.

[0109] Compared with the related art, the spacing between the box shell 310 and the rear shell 200 in some embodiments of the present application is smaller, which helps to reduce the difficulty of connecting the fasteners with the threaded holes and improve the assembly efficiency; and the height of the column forming the threaded holes on the rear shell 200 is smaller, which reduces the material consumption and helps to improve the structural stability; when the rear shell 200 is an injection molded part, it helps to reduce the difficulty of molding.

[0110] In some embodiments, a plurality of fixing holes 311 are provided on the box shell 310 to improve the stability and reliability of the installation of the box shell 310. The plurality of fixing holes 311 are located at the edge of the box shell 310 to avoid affecting the arrangement of the speakers.

[0111] There are many ways to install the first speaker 320 on the box shell 310. For example, the basin frame of the first speaker is fixed to the box shell 310 by screws, and the fixing method is stable and reliable. For another example, the basin frame of the first speaker is clamped or glued to the box shell 310, and the fixing method is simple.

[0112] In some embodiments, the first speaker 320 is mounted on a side of the housing 310 facing the rear housing 200 , such that the first speaker 320 is directly opposite to the rear housing 200 .

[0113] Since the diaphragm needs to vibrate back and forth to produce sound, a vibration space needs to be reserved for the diaphragm of the first speaker 320. In some embodiments of the present application, there is a gap between the diaphragm of the first speaker 320 and the rear housing 200, so that the diaphragm vibrates back and forth in the gap to produce sound.

[0114] The diaphragm of the first speaker 320 faces the rear case 200 of the display device 10 , so that the first speaker 320 emits sound toward the rear side of the display device 10 , which makes the acoustic effect of the display device 10 poor and affects the hearing effect.

[0115] To this end, in some embodiments, the display device 10 includes a first sound guide 400, which is used to guide backward sound waves to the side so that the sound waves are emitted from the side of the display device 10, for example, the top side, the bottom side, the left side or the right side of the display device 10, so as to improve the acoustic effect of the display device 10.

[0116] The first sound guide member 400 is located between the box shell 310 and the rear shell 200 , and the first sound guide member 400 contacts the box shell 310 and the rear shell 200 respectively. The first sound guide member 400 , the box shell 310 and the rear shell 200 together form a first sound cavity 301 , providing an installation space for the first speaker 320 .

[0117] In some embodiments, in combination Figures 4 to 7 A mounting groove 313 is formed on the box shell 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 box shell 310, which is conducive to reducing the thickness of the first speaker 300.

[0118] Exemplarily, the box shell 310 is in a plate shape, and a mounting groove 313 for accommodating the first speaker 320 is formed on the plate structure. This arrangement makes the box shell 310 simple in structure and easy to process and install.

[0119] 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 box shell 310 is integrally formed without adding additional steps; the box shell 310 is plate-shaped and has a simpler structure.

[0120] In some embodiments, the box shell 310 is plate-shaped, and a portion of the rear shell 200 opposite to the box shell 310 is plate-shaped, and the space between the box shell 310 and the rear shell 200 isolated by the first sound guide 400 is used to form an installation space for the first speaker 320.

[0121] In some embodiments of the present application, the first speaker 320 is located in the first sound cavity 301, the first sound guide 400 forms at least part of the first sound outlet 302, and the first sound outlet 302 is connected to the first sound cavity 301. In this way, at least part of the sound waves of the first speaker 320 are transmitted through the first sound outlet 302 under the restriction of the first sound guide 400 and the rear shell 200, so as to realize the side sound output of the first speaker 300.

[0122] The side sound outlet of the first speaker 300 can be understood as that the first speaker 300 has a front side and a rear side along the thickness direction of the display device, and the first sound outlet 302 is arranged on other sides of the first speaker 300 except the front side and the rear side, such as the bottom side.

[0123] Therefore, in the display device of the embodiment of the present application, the first speaker 300 eliminates the sound guide baffle in the existing speaker, and uses the box shell 310, the first sound guide member 400 and the rear shell 200 to jointly enclose a sound cavity 301 for accommodating the first speaker 320. The diaphragm of the first speaker 320 sounds toward the rear shell 200, and the sound cavity 301 is used to guide the sound waves to the first sound outlet 302 so that the sound waves are transmitted, thereby 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.

[0124] Combination Figure 6 , the first sound guide 400 is located outside the first speaker 320 , so that the first speaker 320 is located in the first sound cavity 301 .

[0125] In some embodiments, the first sound guide member 400 may be disposed only around the outer side of the diaphragm of the first speaker 320 . In this case, the first sound guide member 400 may be in contact with the basin frame of the first speaker 320 .

[0126] In some embodiments, the first sound guide member 400 is arranged in the installation groove 313. In this way, a first sound guide member 400 with a larger thickness can be set, and its elastic force is more sufficient; a larger installation groove 313 can be set, and the number and position interval of the first speakers 320 can be flexibly set according to the performance of the display device.

[0127] In other embodiments, the first sound guide 400 is located outside the installation groove 313. This arrangement allows the installation groove 313 to be smaller in area, thereby ensuring the structural strength of the box shell 310 and reducing the possibility of its deformation. In addition, the first sound guide 400 is located outside the installation groove 313, which is convenient for installation and reduces the possibility of the first sound guide 400 damaging the first speaker 320.

[0128] In some embodiments, the first sound guide member 400 is provided with a notch or a break to form the first sound outlet 302 alone, and the structure is simple.

[0129] In other embodiments, the first sound guide 400 and the box shell 310 together define the first sound outlet 302 , which helps to increase the sound outlet area of ​​the first sound outlet 302 .

[0130] Continue to refer to Figure 5 and Figure 6 In some embodiments, the first sound guide 400 is formed with a break 401, and the first sound guide 400 is an open ring, so that the first sound guide 400 is half-surrounded by the outside of the first speaker 320. The break 401 forms at least a portion of the first sound outlet 302. In this way, the first sound guide 400 can be formed by splicing multiple sections of strip-shaped sound guides, and the break 401 is formed at the same time, which not only makes the formation structure of the first sound guide 400 simple, without the need to additionally design a mold to process the first sound guide 400; but also helps to improve the flexibility of the size and shape of the first sound guide 400, and form sound cavities of different sizes and shapes.

[0131] 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. Such a configuration can not only allow the sound waves of the first speaker 320 to be transmitted through the break 401, but also prevent the break 401 from being too small so that the first sound guide 400 on both sides of the break 401 blocks the diaphragm and affects the sound output efficiency.

[0132] In some embodiments, the length of the break 401 formed by the first sound guide 400 may have a certain deviation from the diameter of the diaphragm of the first speaker 320 .

[0133] 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 can also prevent the break 401 from being too large to cause sound wave dispersion and affect the structural strength of the first sound guide 400.

[0134] For another example, the length of the break 401 is slightly smaller than the diameter of the diaphragm, and its blocking effect on sound waves can be ignored, thereby ensuring the structural strength and supporting function of the first sound guide 400.

[0135] In some embodiments, the mounting slot 313 extends to one side edge of the housing 310 , for example Figure 7 and Figure 8 The bottom side of the housing 310 is shown in the orientation, so that the mounting groove 313 forms a second opening toward the side of the housing 310. The side of the housing 310 here refers to the side other than the front side and the rear side of the housing 310. In this arrangement, the first speaker 320 is close to the edge of the housing 310, which is convenient for lateral sound output.

[0136] 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, thereby improving the sound effect; and the first sound outlet 302 has no blocking structure, thereby improving the sound effect.

[0137] Exemplarily, 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, which can not only ensure the sound outlet area, but also avoid the sound outlet area being too large to cause dust and other impurities to enter the sound cavity.

[0138] In some embodiments of the present application, the mounting groove 313 formed on the box shell 310 omits part of the side wall. For example, when the mounting groove 313 is a rectangular groove, it has a groove bottom wall and three groove side walls, and the groove bottom wall is opposite to the rear shell 200; the mounting groove 313 has no groove side wall on the side corresponding to the first sound outlet 302, which not only makes the structure of the box shell 310 simple, but also facilitates processing.

[0139] Regarding the structure in which a sound outlet is arranged on the side wall of the installation groove 313, due to the limited size of the side wall and high processing accuracy requirements, the processing difficulty and cost of the box shell are high; and in order to facilitate the processing of the sound outlet on the side wall, part of the side wall is thickened to obtain sufficient processing space for the sound outlet, which is contrary to the original design intention of the thin speaker in some embodiments of the present application.

[0140] In some embodiments of the present application, a mounting groove 313 is provided in the box shell 310 to accommodate a portion of the thickness of the first speaker 320; and an elastic first sound guide member 400 is provided between the box shell 310 and the rear shell 200 to accommodate a portion of the thickness of the first speaker 320, without reserving a separate thickness interval for the first speaker 320; and the rear shell 200 is used as a sound guide structure for sound waves to achieve side sound output while further reducing the thickness of the speaker box to adapt to the limited rear space of the display device 10.

[0141] Furthermore, some embodiments of the present application utilize the first sound guide member 400 to form the first sound outlet 302, and utilize the installation groove 313 to omit part of the groove side wall, thereby increasing the sound output area of ​​the first sound outlet 302 and improving the sound output effect; moreover, it is helpful to increase the area of ​​the installation groove 313, thereby increasing the installation space of the speaker and improving the convenience of speaker installation.

[0142] The first sound guide 400 of some embodiments of the present application is elastic, so that the box shell 310 and the rear shell 200 are elastically connected, and the thickness of the sound cavity 301 in the front and rear directions of the display device can be elastically enlarged or reduced, so as to absorb part of the sound wave energy on the rear shell 200, reduce the vibration force of the rear shell 200, and ensure the stability of the connection structure of the rear shell 200; it is beneficial to reduce the possibility of noise generated by the vibration of the rear shell 200, and ensure the acoustic effect. Moreover, the first sound guide 400 keeps the other positions between the box shell 310 and the rear shell 200 except the first sound outlet 302 closed at all times, that is, the first sound guide 400 plays a sealing role, reduces the possibility of sound leakage in the sound cavity 301, and tries to make the sound waves concentratedly transmitted from the first sound outlet 302, further improving the sound effect.

[0143] Refer again Figure 4 In some embodiments of the present application, the display device further includes a side frame 250, and the side frame 250 is connected to the edge between the rear housing 200 and the display module 100. The side frame 250 is provided with a sound outlet 251.

[0144] The first sound cavity 301 , the first sound outlet 302 , and the sound outlet hole 251 form a sound outlet channel, and the sound waves generated by the first speaker 320 are transmitted to the outside of the display device through the sound outlet channel.

[0145] The shape of the side frame 250 is the same as that of the display device, and the side frame 250 is formed by a bottom side, a top side, a left side, and a right side. When the sound outlet 251 is arranged at the bottom side of the side frame 250, the sound is emitted from the bottom side of the display device, such as the center channel of the display device; when the sound outlet 251 is arranged at the top side of the side frame 250, the sound is emitted from the top side of the display device, such as the sky sound channel of the display device; when the sound outlet 251 is arranged at the left side of the side frame 250, the sound is emitted from the left side of the display device, such as the left channel and surround channel of the display device; when the sound outlet 251 is arranged at the right side of the side frame 250, the sound is emitted from the right side of the display device, such as the right channel and surround channel of the display device.

[0146] In some embodiments, the side frame 250 and the rear shell 200 are two independent components, so that the side frame 250 and the rear shell 200 can be processed separately, and the processing method is simple.

[0147] In other embodiments, the side frame 250 and the rear shell 200 are an integral piece, that is, the circumferential edge of the rear shell 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 rear shell 200, thereby reducing the assembly process of the side frame 250 and improving assembly efficiency.

[0148] Combination Fig. 9 In some embodiments, the first sound guide 400 is in a closed ring shape, and the first sound guide 400 facing the box shell 310 is recessed toward the rear shell 200 to form a notch 402; the notch 402 communicates with the first sound cavity 301 to form at least part of the first sound outlet 302. In this way, the first sound guide 400 is in a closed ring shape, and the structural stability is high, which facilitates the installation of the first sound guide 400.

[0149] When the housing 310 is provided with a mounting groove 313 , the notch 402 is opposite to the second opening of the mounting groove 313 , and part of the first sound guide 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 .

[0150] Recombination Figure 5 and Figure 6 In some embodiments, the first sound guide member 400 is an integrated member, so as to improve the sealing performance of the first sound guide member 400 and avoid gaps in part of the first sound cavity 301 that may cause sound waves to be transmitted and cause noise.

[0151] In other embodiments, the first sound guide member 400 includes multiple sections of sound guide strips, which are spliced ​​to form the first sound guide member 400 and are arranged around the outside of the first speaker 320. This arrangement makes the first sound guide member 400 easy to install, and foam strips, sponge strips, etc. in the relevant technology can be used without special shape design and processing.

[0152] For the first sound guide member 400 formed with the break 401, it can be formed without providing a sound guide strip; for the first sound guide member 400 formed with the notch 402, the notch 402 can be formed by a smaller thickness of the sound guide strip at the corresponding position.

[0153] In some embodiments, the sound guide bar is linear, which can further improve the convenience of installation and facilitate the formation of a first sound cavity 301 with a regular shape, thereby facilitating the matching of the volume of the first sound cavity 301 with the performance of the first speaker 320 .

[0154] In some embodiments, the sound guide strip is curved, such as an arc, which can match the shape of the first speaker 320 to facilitate the concentrated transmission of sound waves.

[0155] As attached Figure 5 and Figure 6As shown, the shape of the first sound cavity 301 is an open rectangle, and the first sound guiding member 400 is generally in a "C" shape, with a first sound outlet 302 formed on one side. Such a regular shape is convenient for installation and design.

[0156] 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 in shape, etc.

[0157] In some embodiments, referring again to Figure 5 and Figure 6 , the inner side surface of the first sound guiding member 400 facing the first sound cavity 301 is a plane. In this way, the structure of the first sound guiding member 400 is regular and simple, and it is convenient to be formed by splicing strip-shaped sound guiding segments.

[0158] In some other embodiments, as Fig.10 shown, at least part of the inner side surface of the first sound guiding member 400 facing the first sound cavity 301 is a curved surface, such as an arc surface. Such a setting makes at least part of the inner side surface of the first sound cavity 301 a curved surface, which can reduce the vertical reflection of sound waves, and then reduce the peaks and valleys of sound waves, which is beneficial to improving the smoothness of sound waves.

[0159] In certain embodiments, the inner side surface of the first sound guiding member 400 opposite to the first sound outlet 302 is a curved surface.

[0160] In some implementation manners, referring again to Figure 4 , the first sound guiding member 400 is connected to the rear shell 200. For example, the first sound guiding member 400 is connected before the rear shell 200 is assembled, with sufficient operating space and high connection efficiency. Moreover, when disassembling the rear shell 200 to maintain the internal structure of the display device, since the first sound guiding member 400 is located on the rear shell 200, the damage to the first sound guiding member 400 caused by improper maintenance operations can be reduced.

[0161] Exemplarily, the first sound guiding member 400 is adhered to the rear shell 200. For example, the first sound guiding member 400 has self-adhesive, and it is adhered to the rear shell 200; or, the first sound guiding member 400 is adhered to the rear shell 200 through double-sided tape, glue, etc. Such a setting makes the connection method stable and reliable, with sufficient operating space and high efficiency, and is also conducive to disassembly and replacement; moreover, during the assembly process of the display device as a whole, it is convenient to adjust the position of the first sound guiding member 400 to form a sound cavity volume with better sound quality effect.

[0162] In some other implementation manners, the first sound guiding member 400 is connected to the cabinet 310. In this way, the first sound guiding member 400 forms a part of the first speaker 300. During the assembly process of the display device, there is no need to add an additional connection process for the first sound guiding member 400, ensuring the assembly process of the display device.

[0163] Exemplarily, the first sound guide member 400 is bonded to the box shell 310. With such a configuration, the connection method is stable and reliable, the operation is simple and efficient, and it is also convenient for disassembly and replacement; and the first sound guide member 400 is bonded to the box shell 310 to form a part of the sound box. During the assembly process of the display device, there is no need to perform additional positioning and bonding operations of the first sound guide member 400 on the rear shell 200, which is conducive to improving the assembly efficiency of the whole machine; and the first sound guide member 400 is bonded to the box shell 310 in a more accurate position, which is convenient for forming a set sound cavity area, and is conducive to reducing the possibility of affecting the sound cavity volume due to the position offset of the first sound guide member 400.

[0164] In some other embodiments, Fig.11 As shown, the first sound guide member 400 includes a first sound guide layer 430 and a second sound guide layer 440 which are stacked, the first sound guide layer 430 being connected to the box shell 310, for example, the first sound guide layer 430 is bonded to the box shell 310; the second sound guide layer 440 is connected to the rear shell 200, for example, the second sound guide layer 440 is bonded to the rear shell 200. The first sound guide layer 430 and the second sound guide layer 440 are in contact, thereby forming the first sound guide member 400. Such an arrangement can not only ensure the stability of the connection of the first sound guide member 400, but also improve the guiding effect of the first sound guide member 400 on the sound waves, so that the sound waves are transmitted from the first sound outlet.

[0165] In some embodiments, the first sound guide member 400 is installed as a whole on the box shell 310, or the first sound guide member 400 is installed as a whole on the rear shell 200, and the installation method is relatively simple.

[0166] In other embodiments, part of the first sound guide member 400 is connected to the box shell 310, and the other part of the first sound guide member 400 is connected to the rear shell 200. Exemplarily, when the first sound guide member 400 includes multiple sections of sound guide strips, part of the sound guide strips are connected to the box shell 310, and part of the sound guide strips are connected to the rear shell 200. Such a configuration makes the connection method of the first sound guide member 400 flexible, which is convenient for flexible operation when assembling the display device.

[0167] For example, when part of the first sound guide component 400 connected to the rear shell 200 is damaged or fails due to improper transportation or the like, part of the sound guide strip connected to the rear shell 200 can be used to form the first sound guide component 400 together with the sound guide strip on the rear shell 200, thereby eliminating the need to return the entire first speaker 300 to the factory for repair, thereby improving production efficiency.

[0168] In some embodiments, the first sound guide member 400 is clamped between the box shell 310 and the rear shell 200, so that the first sound guide member 400 is compressed between the box shell 310 and the rear shell 200. This eliminates the need to add a connection process for the first sound guide member 400, thereby improving production efficiency.

[0169] When installed in this way, the position of the first sound guide 400 is easy to move and needs to be adjusted repeatedly. Fig.12 and Fig.13 A limiting portion 314 that cooperates with the first sound guide member 400 is provided on the box shell 310 to limit the position of the first sound guide member 400.

[0170] For example, refer to Fig.12 , the limiting portion 314 may be a groove provided on the box shell 310; illustratively, refer to Fig.13 The limiting portion 314 can be a convex bump or a convex point set on the box shell 310, so that while limiting the position of the first sound guide 400, it is also beneficial to improve the structural strength of the box shell 310.

[0171] Of course, in some embodiments, the limiting portion 314 may be disposed on the rear shell 200 , so that the limiting portion 314 may be integrally formed when the rear shell 200 is formed, without the need for additional steps.

[0172] In some other embodiments, the box shell 310 and the rear shell 200 are respectively provided with limiting parts 314 that cooperate with the first sound guide member 400, so as to improve the reliability of the position limitation of the first sound guide member 400, reduce the difficulty of assembly, and improve the assembly efficiency.

[0173] Recombination Figure 5 and Figure 6 The first sound guide 400 enables an elastic connection between the box shell 310 and the rear shell 200. Thus, when the rear shell 200 is subjected to vibrating sound waves, the first sound guide 400 is deformed by the vibration force and absorbs the vibration force, thereby avoiding noise generated by the rigid contact between the rear shell 200 and the box shell 310.

[0174] In some implementations, at least a portion of the first sound guide 400 is elastic. Fig.14 and Fig.15 As shown, the first sound guide 400 includes an elastic portion 410. The elastic portion 410 may contact the box case 310 or the rear case 200, so that the box case 310 and the rear case 200 are elastically connected.

[0175] In some embodiments, the first sound guide 400 includes a rigid portion 420, which can provide support and positioning for the elastic portion 410, thereby ensuring the appearance of the first sound guide 400; it can also provide an installation structure for the first sound guide 400 to ensure the reliability of the installation of the first sound guide 400.

[0176] The rigid part 420 is fixedly connected to the box shell 310 or the rear shell 200, for example, the rigid part 420 is bonded to the box shell 310 or the rear shell 200, and the connection method is simple. For another example, the rigid part 420 is clamped to the box shell 310 or the rear shell 200, and the connection method is stable.

[0177] In some embodiments, Fig.14 As shown, the elastic part 410 and the rigid part 420 of the first sound guide 400 are stacked, and such arrangement enables the first sound guide 400 to have a rigid part 420 with a larger area, which facilitates the installation and fixation of the first sound guide 400.

[0178] Exemplarily, one of the box shell 310 and the rear shell 200 is bonded to the rigid part 420, and the other of the box shell 310 and the rear shell 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 box shell 310 and the rear shell 200 elastically connected.

[0179] In other embodiments, Fig.15 As shown, the rigid part 420 of the first sound guide 400 includes a plurality of rigid parts 421, and the plurality of rigid parts 421 are arranged at intervals. While providing support for the elastic part 410, the setting of the rigid part 420 is reduced, which is not only beneficial to reducing the material usage of the rigid part 420, but also beneficial to reducing the weight of the first sound guide 400, which is beneficial to the slim and light design of the display device.

[0180] In some embodiments, Fig.16 As shown, the rigid part 420 of the first sound guide 400 includes a plurality of rigid parts 421, and the plurality of rigid parts 421 are arranged at intervals along the extension direction of the elastic part 410. When the elastic part 410 is formed by splicing multiple sections of elastic parts, the plurality of rigid parts 421 are arranged at intervals along the length direction of each section of the elastic part. The extension direction dimension of the elastic part 410 is relatively large, and the width direction dimension of the elastic part 410 is relatively small. The plurality of rigid parts 421 are arranged at intervals along the extension direction of the elastic part 410, which not only provides sufficient space for arrangement, but also facilitates providing support to the elastic part 410, and facilitates maintaining the shape of the first sound guide 400.

[0181] In other implementations, the first sound guide 400 is an elastic member, for example, the first sound guide 400 is an elastic rubber member, foam, sponge, etc. In this way, the first sound guide 400 is an integrated member, which not only has better sealing performance and reduces the possibility of sound leakage in the sound cavity; but also has sufficient elastic deformation force to ensure the elastic connection between the box shell 310 and the rear shell 200; in addition, the elastic member structure of the related technology can be used, without additional processing and design, and the structure is simple.

[0182] In some embodiments, the thickness of the first sound guide member 400 is greater than or equal to 2 mm, ensuring that the first sound guide member 400 has a certain thickness and elastic force to avoid contact between the rear shell 200 and the box shell 310.

[0183] In some embodiments, the thickness of the first sound guide member 400 is less than or equal to 4 mm. Such a configuration can not only make the first sound guide member 400 have a certain thickness to provide a vibration interval for the diaphragm of the first speaker 320; it can also make the first sound guide member 400 have sufficient elastic deformation, which is conducive to extending the service life of the first sound guide member 400.

[0184] In some embodiments, the thickness of the first sound guide 400 can be 2 mm to 4 mm. In this way, the first sound guide 400 can have a sufficient thickness to ensure the elastic connection between the rear shell 200 and the box shell 310, and can also avoid the first sound guide 400 being too thick, which will increase the overall thickness of the speaker and is not conducive to reducing the thickness of the speaker.

[0185] In some embodiments, the width of the first sound guide 400 is greater than or equal to 8 mm. This configuration helps to ensure that the first sound guide 400 has sufficient width, can stably and reliably elastically support the first sound box 300, and play a guiding role for sound waves.

[0186] In some embodiments, the width of the first sound guide member 400 is less than or equal to 10 mm. Such a configuration can ensure that the first sound guide member 400 has sufficient width to form a sound cavity; it can also reduce the material usage of the first sound guide member 400.

[0187] In some embodiments, the width of the first sound guide 400 can be 8 mm to 10 mm. This configuration not only allows the first sound guide 400 to have a sufficient width to stably and reliably elastically support the first sound box 300, but also prevents the first sound guide 400 from being too wide, resulting in too much installation space.

[0188] In some embodiments, the density of the first sound guide 400 is greater than or equal to 24 kg / m 3 Such a configuration can not only ensure that the first sound guide member 400 has sufficient elastic force, but also play a guiding role for the sound waves so that the sound waves are transmitted from the sound outlet.

[0189] In some embodiments, the density of the first sound guide 400 is less than or equal to 26 kg / m 3 Such a configuration makes it easy for the first sound guide 400 to deform elastically, thereby increasing the elastic force between the rear shell 200 and the box shell 310, reducing the problem of noise generated by the rigid connection between the rear shell 200 and the box shell 310, and also guiding the sound waves.

[0190] In some embodiments, the density of the first sound guide 400 is greater than or equal to 24 kg / m 3 And less than or equal to 26kg / m 3 For example, the density of the first sound guide 400 is in the range of 24 kg / m3 ~24.5kg / m 3 , 24.5kg / m 3 ~25kg / m 3 , 25kg / m 3 ~25.5kg / m 3 or 25.5kg / m 3 ~26kg / m 3 .

[0191] In this way, the first sound guide 400 can be easily elastically deformed, thereby increasing the elastic force between the rear shell 200 and the box shell 310, reducing the noise problem caused by the rigid connection between the rear shell 200 and the box shell 310, and can also guide the sound waves.

[0192] Continue to refer to Figure 5 and Figure 6 In some embodiments, a plurality of first speakers 320 may be provided, for example, two, three, four, etc. The plurality of first speakers 320 are arranged at intervals along the length direction of the first sound outlet 302, and the plurality of first speakers 320 are all arranged in the same first sound cavity 301. In this way, the first sound guide 400 is arranged around the outside of all the first speakers 320, and the plurality of first speakers 320 may share a first sound outlet 302, so that the sound waves are concentrated and transmitted from the first sound outlet 302, thereby improving the acoustic effect; and a plurality of speakers may be arranged in a limited space, thereby improving the sound effect.

[0193] In some embodiments, in combination Fig.17 There are multiple first speakers 320, and there are multiple first sound cavities 301, wherein at least one first speaker 320 is independently arranged 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 box shell 310, which is conducive to ensuring the directionality of the sound.

[0194] In some embodiments, each first speaker 320 is disposed in a first sound cavity 301 , respectively, so as to reduce interference between different speakers.

[0195] Compared with setting a larger first sound cavity 301 to accommodate all the first speakers, the above-mentioned setting of multiple smaller first sound cavities 301 increases the supporting position of the first sound guide 400, ensures the elastic connection between the rear shell 200 and the box shell 310, and reduces the rigid contact between the rear shell 200 and the box shell 310 caused by insufficient elastic support effect of the first sound guide 400 to generate noise.

[0196] Continue to refer to Figure 6 and Figure 8In some embodiments, the first sound box 300 further includes a second speaker 330 , which is mounted on the box shell 310 and is located in the first sound cavity 301 .

[0197] In some embodiments, the size of the mounting groove 313 is relatively large, so that the second speaker 330 can share a mounting groove 313 with the first speaker 320 . Such a configuration helps to simplify the structure of the box shell 310 .

[0198] In other embodiments, a plurality of mounting grooves 313 may be provided, and the second speaker 330 and the first speaker 320 are respectively installed in the mounting grooves 313 . In this way, the size of the mounting grooves 313 is relatively small, which is beneficial to ensuring the structural strength of the box shell 310 .

[0199] In some embodiments, at least some of the sound wave frequencies of the second speaker 330 are different from the sound wave frequencies of the first speaker 320. For example, some of the sound wave frequencies of the second speaker 330 are greater than the sound wave frequencies of the first speaker 320.

[0200] For example, the second speaker 330 may be a tweeter, and the sound wave frequency range of the second speaker 330 may be 2KHz to 20KHz. The first speaker 320 may be a midrange speaker, and the sound wave frequency range of the first speaker 320 may be 200Hz to 8KHz, or 200Hz to 10KHz.

[0201] In some embodiments, the frequency of the sound waves of the second speaker 330 is greater than the frequency of the sound waves of the first speaker 320 .

[0202] The speaker of the first sound box 300 in some embodiments of the present application improves the acoustic effect of the display device by coordinating the mid-range and the treble.

[0203] 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 to each other and there is not enough space to provide a sound guide, so that the second speaker 330 and the first speaker 320 share a sound cavity, which is conducive to simplifying the sound box structure.

[0204] In some embodiments, the display device 10 further includes a second sound guide 500, which is located in the first sound cavity 301 and contacts the rear shell 200 and the box shell 310 respectively; the second sound guide 500, the rear shell 200 and the box shell 310 together enclose 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 in the second sound cavity 501.

[0205] In this embodiment, a second sound cavity 501 is formed by setting a second sound guide 500 in the first sound cavity 301 to install a second speaker 330. In this way, the second sound cavity 501 can be used to separate the second speaker 330 and the first speaker 320, and the possibility of resonance between the two in the first sound cavity 301 to generate noise can be reduced. The sound output direction of the second speaker 330 is the same as that of the first speaker 320, and the sound waves can be mixed and transmitted at the same time, thereby ensuring the acoustic effect of the display device.

[0206] The structure, connection method, etc. of the second sound guide component 500 may refer to the first sound guide component 400 .

[0207] In some embodiments of the present application, the second sound guide 500 is provided so that the second speaker 330 and the first speaker 320 are located in different sound cavities, thereby reducing interference between different speakers and improving sound effects.

[0208] like Figure 5 and Figure 6 As shown, in some embodiments, a plurality of 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. Exemplarily, 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 arranged symmetrically about the second speaker 330, and such a configuration is conducive to improving the appearance characteristics of the first sound box 300.

[0209] like Fig.18 As shown, in some embodiments, a plurality of first speakers 320 are provided, and the second speaker 330 is provided at the end of the plurality of first speakers 320. When the first speaker box 300 is installed on the top side or the bottom side of the display device, such a configuration facilitates the arrangement of speakers with higher frequencies 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 width of the sound field.

[0210] In some embodiments, two first speakers 320 and one second speaker 330 are combined to form a sound unit 303, and the sound unit 303 is arranged in the same first sound cavity 301. Such an arrangement can make it possible to improve the sound performance, power, etc. of the first speaker 320 when the first sound box 300 is thinner, so the two first speakers 320 are matched with one second speaker 330 to improve the sound performance such as bandwidth and sound loudness, and improve the acoustic effect.

[0211] Reference Fig.19In some embodiments, a plurality of first speakers 320 are provided in the first sound box 300, and a plurality of second speakers 330 are provided; the plurality of first speakers 320 are arranged at intervals along the length direction of the box shell 310, and the plurality of second speakers 330 are arranged at intervals along the length direction of the box shell 310, so as to increase the bandwidth and improve acoustic performance such as sound loudness.

[0212] exist Fig.19 In the structure shown, the first sound box 300 has two speakers, and the two first sound boxes 300 include different numbers of speakers. Those skilled in the art can set the number of speakers in the first sound box 300 according to the actual layout space, acoustic requirements, etc. In some possible implementations, Fig.19 The structure shown can be used as a surround channel speaker for a display device.

[0213] In some possible implementations, the plurality of first speakers 320 are evenly spaced apart along the length direction of the housing 310 to enhance the surround effect of the sound emitted by the display device.

[0214] 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 combined with one second speaker 330 to form a sound unit 303, thereby improving acoustic efficiency.

[0215] When the first sound box 300 has multiple sound units 303 , the second speaker 330 can have various positions in the sound unit 303 . For example, the second speaker 330 can be arranged between two first speakers 320 . For another example, the second speaker 330 can be arranged at the end of the sound unit 303 .

[0216] In some embodiments, the first speaker 300 may include a sound unit 303, so that the first speaker 300 has a compact structure and a flexible installation position.

[0217] In some embodiments, the first speaker 300 may include a plurality of sound generating units 303 , so that the first speaker 300 has sufficient frequency width, sound loudness, etc., to improve the surround effect.

[0218] In some embodiments, the first speaker 300 may be located at the bottom side of the rear housing 200, and the first sound outlet 302 faces downward, so that the first speaker 300 emits sound downward. In some embodiments, the first speaker 300 may be located on the left side of the rear housing 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 housing 200, and the first speaker 300 emits sound to the right.

[0219] In the above description, both the first speaker 320 and the second speaker 330 use the rear case 200 and the sound guide to guide the sound waves, which is not limitative.

[0220] For example, in some embodiments, the first speaker 320 may be a mid-range speaker, and the second speaker 330 may 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, and the sound guide baffle is used to guide the sound waves to the side.

[0221] For another example, in some embodiments, the first speaker 320 may be a tweeter, and the second speaker 330 may be a mid-range 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, and the sound guide baffle is used to guide the sound waves to the side.

[0222] In some embodiments, continue to refer to Figure 5 and Figure 6 The first sound box 300 also includes a third speaker 340, which is installed on the side of the box shell 310 facing the rear shell 200, and there is a gap between the diaphragm of the third speaker 340 and the rear shell 200 to reserve a gap for the diaphragm of the third speaker 340 to vibrate.

[0223] In some embodiments, the third speaker 340 is a woofer, and the sound wave frequency of the third speaker 340 may be lower than 200 Hz.

[0224] There is no need to set a sound guide outside the third speaker 340. The third speaker 340 is a bass speaker and has low requirements on the directivity of sound waves.

[0225] The researchers of this application also found that the sound emitted by the display device has peaks and valleys in certain frequency bands of the sound frequency response curve, which makes the sound uneven and affects the sound quality. After repeated studies, it was found that because the speaker transmits sound waves toward the wall of the speaker box opposite to it, the sound waves are reflected by the box body and turn to be transmitted through the side outlet. Because the sound waves reflect back and forth in the speaker box, the sound is prone to peaks and valleys in certain frequency bands, resulting in uneven sound and affecting the sound quality.

[0226] Especially for the woofer, the amplitude and airflow are relatively large, and the sound waves are directly transmitted to the rear shell 200, which causes the vibration of the rear shell 200 to be relatively large, and it is easy to generate noise.

[0227] To this end, in some embodiments, in combination Fig. 20A sound outlet hole 201 is provided on a part of the wall of the first box body 30a, and the wall of the box on which the sound outlet hole 201 is provided is opposite to the first speaker 320 and has a gap therebetween.

[0228] In some embodiments of the present application, the sound outlet direction of the sound outlet 201 is different from the sound outlet direction of the first sound outlet 302. The sound outlet 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.

[0229] The first box body 30 a is a part of the first sound box 300 , and the first box body 30 a is configured to form a first sound cavity 301 for accommodating a first speaker 320 .

[0230] In some embodiments, the first box body 30a can be formed by the box shell 310, the rear shell 200 and the first sound guide 400 of some of the above embodiments, and such a configuration is conducive to reducing the thickness of the speaker. At this time, the rear shell 200 and the area opposite to the diaphragm of the speaker are provided with a sound hole 201, for example, the area opposite to the rear shell 200 and the first speaker 320 is provided with a sound hole 201; for another example, the area opposite to the rear shell 200 and the second speaker 330 is provided with a sound hole 201; for another example, the area opposite to the rear shell 200 and the third speaker 340 is provided with a sound hole 201.

[0231] In other embodiments, the first box 30a is a structure independent of the rear shell 200, and there is a gap between the first box 30a and the rear shell 200 to prevent the vibration of the first box 30a from causing the vibration of the rear shell 200. At this time, a sound hole 201 is set on the box wall opposite to the rear shell 200.

[0232] Exemplarily, the first box body 30a includes the box shell 310 and the sound guide baffle, and the sound guide baffle and the box shell 310 are enclosed together to form a sound cavity. The sound guide baffle is spaced from the rear shell 200.

[0233] The first box body 30a independently provided from the rear shell 200 makes the speaker box a closed structure, which is convenient for transportation and protects the internal structure; and requires a larger installation space than some of the above-mentioned embodiments.

[0234] In some embodiments of the present application, a sound outlet hole 201 is provided so that part of the sound waves can be transmitted from the sound outlet hole 201, thereby reducing the reflection path of the sound waves in the sound cavity, 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 response curve in certain frequency bands, improving the smoothness of the sound, and thus improving the sound quality.

[0235] Moreover, by setting a sound outlet 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 the sound waves in the rear shell 200, and can also increase the transmission direction of the low-frequency sound waves, so that the low-frequency sound waves of the first speaker 300 can be transmitted laterally (for example, toward the ground side of the display device) and backward, thereby improving the acoustic effect.

[0236] In some embodiments, the sound hole 201 can be a circular hole, which is convenient for processing, and the hole wall of the circular hole is smooth, which can reduce stress concentration; compared with polygonal holes with the same maximum aperture, the hole area of ​​the circular hole is larger; when forming the same sound output area, the number of circular holes is less, which can reduce the impact on the structural strength of the box wall.

[0237] Of course, the sound outlet hole 201 can also be a polygonal hole such as an elliptical hole, a square hole, or a hole of an irregular shape.

[0238] In some embodiments, the diameter of the sound hole 201 can be 2.5mm to 3.5mm, which can avoid the sound hole 201 being too small, resulting in difficulty and high cost in processing, and can also avoid the sound hole 201 being too large, affecting the structural strength of the first box body 30a.

[0239] In some embodiments, a plurality of sound outlet holes 201 are provided, and the plurality of sound outlet holes 201 may be arranged in a rectangular matrix, a circular matrix, etc., which can not only increase the area for sound wave transmission, but also improve the aesthetics of the rear shell 200.

[0240] In some embodiments, in combination Fig.21 , the projection shape of the diaphragm 321 of the first speaker on the rear box wall 32 is circular. Multiple sound outlets 201 are arranged in the projection area of ​​the diaphragm 321 on the rear box wall 32. In other words, the multiple sound outlets 201 are opposite to the diaphragm 321 of the first speaker along their axial direction. Such a setting is conducive to the transmission of sound waves through the sound outlet holes 201, reducing the reflection path of sound waves in the sound cavity, thereby reducing the back and forth reflection of sound waves in the sound cavity 301, thereby weakening the peaks and valleys of the sound and audio response curve in certain frequency bands, improving the smoothness of the sound, and thus improving the sound quality.

[0241] The sound hole 201 is opposite to the edge of the diaphragm 321, and the sound hole 201 can also be opposite to the middle area of ​​the diaphragm 321. The arrangement position of the sound hole 201 is set according to the frequency band corresponding to the peak and valley position of the sound frequency response curve to weaken the peaks and valleys of these frequency bands and make the sound smooth.

[0242] Since the sound waves are concentrated and transmitted from the sound outlet 201, airflow sound is easily generated at the sound outlet 201, resulting in noise, which affects the acoustic effect of the display device. Among them, airflow sound refers to the friction sound generated by the airflow and the sound outlet 201 when the eddy flow velocity reaches a certain value. If the airflow velocity at the sound outlet 201 reaches 20m / s, airflow sound that can be perceived by the human ear, or "wind noise", can be generated.

[0243] To this end, in some embodiments, the cross-sectional area of ​​the sound outlet hole 201 is reduced. For example, when the sound outlet hole 201 is a circular hole, the diameter of the sound outlet hole 201 is reduced. For example, the diameter of the sound outlet hole 201 can be within a certain range. In addition, the arrangement density of the sound outlet holes 201 is increased. It can be understood that, for example, Fig.21 The sound output area of ​​all the sound output holes 201 shown is Fig. 22 All the sound outlet holes 201 shown have the same sound outlet area. Fig. 22 The number of the sound outlet holes 201 shown is greater than Fig.21 The number of sound outlet holes 201 shown, Fig. 22 The diameter of the sound outlet hole 201 is smaller than Fig.21 The diameter of the sound outlet hole 201 is shown.

[0244] In some embodiments of the present application, the number of the sound outlet holes 201 is increased and the single hole area of ​​the sound outlet hole 201 is reduced, thereby reducing the gas flow speed of a single sound outlet hole 201 and slowing down the air flow sound.

[0245] However, the above method is not only difficult and costly to process, but also affects the structural strength of the box.

[0246] In some embodiments, in combination Fig.23 A damping component 210 is provided on the box wall where the sound outlet hole 201 is provided, and is configured to provide a damping effect on the gas flow in the sound outlet hole 201, thereby reducing the possibility of air flow sound in the sound outlet hole 201, reducing wind noise, and improving the sound quality of the display device.

[0247] The damping component 210 covers at least a portion of the sound outlet hole 201 to separate the sound outlet hole 201 to form a plurality of small holes; the damping component 210 increases the resistance of the gas flowing through the sound outlet hole 201, reduces the gas flow speed, and thus reduces the air flow sound.

[0248] In some embodiments of the present application, the damping component 210 covers all the sound outlet holes 201 , provides a damping effect on the gas flow of each sound outlet hole 201 , and reduces the air flow sound.

[0249] In some embodiments, the first box body 30a has a front box wall 31, a rear box wall 32, and a circumferential side wall 33. The front box wall 31 and the rear box wall 32 are opposite to each other and spaced apart along the front-to-back direction of the display device. The front box wall 31 faces the display module 100, and the rear box wall 32 is provided with a sound outlet 201. The circumferential side wall 33 is connected between the front box wall 31 and the rear box wall 32, and the circumferential side wall 33 is provided with a first sound outlet 302. Such a configuration realizes the lateral sound output of the first speaker 300.

[0250] In some embodiments, at least part of the first box body 30a is a metal plate, for example, at least part of the front box wall 31 is a metal plate, for example, at least part of the rear box wall 32 is a metal plate. In this way, the structural strength of the first box body 30a is improved and the deformation of the first box body 30a is reduced.

[0251] In some embodiments, the first box body 30a includes a metal plate portion and an injection molded plate portion, and the metal plate portion can be bonded to the injection molded plate portion, and the connection method is simple; or the metal plate portion is used as an insert during the injection molding of the injection molded plate portion, and is integrally formed with the injection molded plate portion, and the connection is stable and reliable. The injection molded plate portion can be a plastic plate portion.

[0252] In some embodiments, the magnetic yoke of the first speaker 320 is in contact with the metal plate portion, which helps to increase the heat dissipation area of ​​the first speaker 320 and further improve the heat dissipation effect of the first speaker 320 .

[0253] When the rear shell 200 forms a part of the first box body 30a, the rear shell 200 forms the rear box wall 32 of the first box body 30a, the box shell 310 forms the front box wall 31 of the first box body 30a, and the first sound guide 400 and the groove side wall 3131 of the installation groove 313 jointly form the circumferential side wall 33 of the first box body 30a.

[0254] In some embodiments, the box wall of the first box body 30 a 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.

[0255] In some embodiments, in combination Fig.23 A damping component 210 is arranged on the inner surface of the box wall, so that the damping component 210 is hidden inside the inner side of the first box body 30a, which is convenient for protecting the damping component 210.

[0256] In other embodiments, a damping component 210 is disposed on the outer surface of the box wall to facilitate replacement and maintenance of the damping component 210 and prevent the damping component 210 from occupying the internal space of the box.

[0257] In some other embodiments, a damping component 210 is disposed in the sound outlet 201 . This configuration can facilitate replacement and maintenance of the damping component 210 and prevent the damping component 210 from increasing the thickness of the first speaker 300 .

[0258] The damping component 210 of some embodiments of the present application is a porous structure, and the damping component 210 is configured to absorb sound waves from the sound outlet 201. When the sound waves pass through the damping component 210, the damping component 210 plays a damping role, and the air vibrates and rubs against the hole wall of the damping component 210, so that part of the sound energy is converted into heat energy and absorbed, thereby reducing the airflow sound.

[0259] In some embodiments, the damping component 210 is a sheet-like structure, which allows the damping component 210 to occupy a smaller thickness space when installed and has little effect on the weight of the entire display device.

[0260] In some embodiments, the damping component 210 is a mesh cover with gaps, which is formed by interweaving mesh cables. A plurality of mesh holes are evenly distributed on the damping component 210, and the cross-sectional area of ​​the mesh holes is smaller than the cross-sectional area of ​​the sound outlet hole 201. Such an arrangement allows part of the mesh cables of the mesh cover to be opposite to the sound outlet hole 201, and the mesh cables of the mesh cover cover at least part of the sound outlet hole 201, thereby dividing the larger sound outlet hole 201 into a plurality of smaller holes, thereby increasing the air flow resistance and helping to reduce the airflow sound.

[0261] When the mesh of the damping component 210 is a circular hole and the sound outlet hole 201 is a circular hole, the aperture of the damping component 210 is smaller than the aperture of the sound outlet hole 201 .

[0262] For example, when the aperture of the sound hole 201 is 2.5 mm to 3.5 mm, the mesh size of the damping component 210 may be 300 meshes, so that the aperture of the damping component 210 is much smaller than the aperture of the sound hole 201 , thereby reducing the effect of wind noise of the sound hole 201 .

[0263] In some embodiments, the damping component 210 is a mesh cloth, and the mesh area of ​​the mesh cloth is smaller than the cross-sectional area of ​​the sound outlet hole 201, so that the mesh cloth can cover the sound outlet hole 201 and provide a damping effect for the gas flow of the sound outlet hole 201. The mesh cloth is a fabric with mesh holes, which can be interwoven with yarns to present a mesh structure. This structure makes the mesh cloth breathable, so that sound waves can still be transmitted from the sound outlet hole 201; the mesh cloth is also soft and elastic, which is conducive to improving the damping effect of the airflow; the mesh cloth also has a certain wear resistance, which is conducive to improving the service life.

[0264] Mesh cloth can be made of various materials, such as polyester mesh cloth, nylon mesh cloth, polyethylene mesh cloth, polypropylene mesh cloth and other high-strength material mesh cloth, or mesh cloth formed by soft rubber thread or plastic thread. In addition, cotton, polyester and other materials are also used to make mesh cloth. Among them, polyester mesh cloth has high tensile strength and wear resistance, while nylon mesh cloth is wear-resistant and has good elasticity.

[0265] In some embodiments, the damping component 210 is disposed on the inner surface of the rear shell 200, so that the rear shell 200 has a clean and regular appearance. The inner surface of the rear shell 200 is the surface of the rear shell 200 facing the first sound cavity 301, and the outer surface of the rear shell 200 is opposite to the inner surface thereof along the front-to-back direction.

[0266] 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; and the damping component 210 is disposed on the outer side 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.

[0267] In some embodiments, the damping component 210 may be installed in a variety of ways.

[0268] For example, the damping component 210 is bonded to the rear housing 200, and the installation method is simple. For another example, the damping component 210 is clamped to the rear housing 200, and the installation method is simple and stable; and it is convenient to disassemble. For another example, the damping component 210 is fixed to the rear housing 200 by screws, and the stability is high.

[0269] In some embodiments, the damping component 210 covers all the sound holes 201, and its shape can be various. For example, the damping component 210 is annular, and only covers the rear shell 200 where the sound holes 201 are set, so that the material consumption of the damping component 210 can be reduced. For another example, the damping component 210 is polygonal, for example, rectangular, and covers the rear shell 200 where the sound holes 201 are set and its inner area. With such a configuration, the damping component 210 has a simple structure and is easy to process; and the damping component 210 has a large contact area with the rear shell 200, which is conducive to improving the installation stability and reliability of the damping component 210. Of course, the shape of the damping component 210 is not limited thereto, for example, the damping component 210 can also be circular, elliptical, flower-shaped, etc.

[0270] In some embodiments, the damping component 210 is an integrated structure, which facilitates the overall installation of the damping component 210 and has a good appearance.

[0271] In some embodiments, the damping component 210 can be a split structure, that is, the damping component 210 includes multiple meshes, and the multiple meshes are spliced ​​to form the damping component 210. Such a configuration allows the damping component 210 to be installed separately, and the installation of the damping component 210 is simpler and more flexible.

[0272] In some possible implementations, a damping component 210 is provided in the sound outlet 201 . The damping component 210 may be sponge, foam, sound-absorbing cotton, etc., which can absorb sound waves and reduce the possibility of airflow sound occurring at the sound outlet 201 .

[0273] In some embodiments, the damping component 210 is constructed so that the inner and outer sides of the rear shell 200 are connected through the sound outlet hole 201, so that the sound waves can be partially absorbed by the damping component 210 when passing through the sound outlet hole 201, and part of the sound waves can also be transmitted to the outside of the rear shell 200 through the sound outlet hole 201, thereby increasing the sound outlet direction of the sound waves.

[0274] In some embodiments, the damping component 210 can be interference-fitted into the sound outlet 201 , and the installation method is simple and reliable.

[0275] In some embodiments, the damping component 210 may also be fixed to the rear housing 200 via a fixing member. For example, the damping component 210 is fixed to a bracket, and the bracket is installed on the rear housing 200 by screwing, clamping or bonding.

[0276] In some embodiments, reference Fig.24 In some embodiments, the damping component 210 includes multiple layers of mesh, the multiple layers of mesh are stacked, and the mesh wires of two adjacent layers of mesh are staggered to reduce the area of ​​a single mesh. Exemplarily, the damping component 210 includes a first layer of mesh 211 and a second layer of mesh 212 stacked, the first layer of mesh 211 has a first mesh S1, and the second layer of mesh 212 forms a second mesh S2. The mesh wires of the first layer of mesh 211 and the mesh wires of the second layer of mesh 212 are staggered, so that the first mesh S1 and the second mesh S2 partially overlap, forming an interlaced mesh S0 with a smaller single hole area.

[0277] Compared with a single-layer mesh, the damping component 210 of the embodiment of the present application is provided with a multi-layer mesh, which is not only conducive to reducing the hole area of ​​a single mesh, increasing the air flow resistance, and further reducing the airflow noise, but also conducive to improving the structural strength of the damping component 210, and facilitating installation and fixation.

[0278] In some embodiments, the damping component 210 is a single-layer mesh, and the mesh wire of the single-layer mesh is used to separate the sound outlet holes 201 to form multiple sound outlet holes, thereby increasing air flow resistance and reducing airflow sound. Air flow will be generated during the sound wave radiation process, and the damping component 210 of the single-layer mesh can reduce the resonance of the outlet wires between the multiple layers of mesh.

[0279] From the above description, when the rear shell 200 is provided with a sound outlet hole 201, a damping component 210 is provided on the rear shell 200. The damping component 210 is constructed so that the inner and outer sides of the rear shell 200 are connected through the sound outlet hole 201, which can ensure that the sound waves are transmitted through the sound outlet hole 201 and reduce the vibration force of the sound waves on the rear shell 200; it can also absorb the sound waves of the sound outlet hole 201 and reduce the airflow sound of the sound outlet hole 201.

[0280] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0281] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A display device, characterized in that: include: A display module is configured to display image information; A first speaker is installed on the back side of the display module, and the first speaker includes: A first box body is structured to form a first sound cavity; a plurality of sound outlet holes are arranged on a part of the box wall of the first box body; A first speaker is installed in the first sound cavity; a diaphragm of the first speaker is opposite to and spaced from a wall of the first box body provided with the sound outlet hole; The damping component is arranged on the box wall of the first box body where the sound outlet hole is arranged; the damping component covers at least a part of the sound outlet hole and is configured to provide a damping effect on the gas flow in the sound outlet hole.

2. The display device according to claim 1, characterized in that The box wall of the first box body provided with the sound outlet hole has an inner surface facing the first sound cavity and an outer surface opposite to the inner surface; The damping component is arranged on the inner surface of the box wall; and / or, the damping component is arranged on the outer surface of the box wall; and / or, the damping component is arranged in the sound outlet hole.

3. The display device according to claim 1, characterized in that The damping component is a sheet-like structure.

4. The display device according to claim 1, characterized in that The damping component is a mesh cover with pores, and the mesh wire of the mesh cover covers at least a part of the sound outlet hole.

5. The display device according to claim 1, characterized in that The damping component is a mesh cloth, and the mesh area of ​​the mesh cloth is smaller than the hole cross-sectional area of ​​the sound outlet hole.

6. The display device according to claim 1, characterized in that The damping component is bonded to the box wall of the first box body where the sound outlet hole is arranged.

7. The display device according to any one of claims 1 to 6, characterized in that: The first box body has a front box wall, a rear box wall and a circumferential side wall, the front box wall and the rear box wall are opposite to each other and have a gap, the front box wall faces the display module, and the rear box wall is provided with the sound outlet; the circumferential side wall is connected between the front box wall and the rear box wall, and the circumferential side wall is provided with a first sound outlet.

8. The display device according to any one of claims 1 to 6, characterized in that: The display device further includes a rear shell, which is located on a side of the first speaker box away from the display module, and there is a gap between the rear shell and the first box body; the sound outlet is provided on a box wall of the first box body opposite to the rear shell.

9. The display device according to any one of claims 1 to 6, characterized in that: The display device further comprises a rear housing, wherein the rear housing is located at the back side of the display module; The first box body includes a box shell, a first sound guide and at least a part of the rear shell, the box shell is located between the rear shell and the display module, the box shell and the rear shell are elastically connected through the first sound guide and enclose to form the first sound cavity; The sound outlet is arranged in a region of the rear housing opposite to the diaphragm of the first speaker.

10. The display device according to claim 9, characterized in that The first sound guide member includes an elastic portion, and the elastic portion is in contact with the box shell or the rear shell; or The first sound guide member is an elastic member.

11. The display device according to claim 9, characterized in that The first sound guide is connected to the box shell, and / or the first sound guide is connected to the rear shell.

12. The display device according to any one of claims 1 to 6, characterized in that: At least a portion of the first box body is a metal plate portion.

13. The display device according to claim 12, characterized in that The magnetically conductive yoke of the first speaker is in contact with the metal plate portion.

Images