Display device

Abstract

A display device, comprising a display module, a rear housing, a side frame, a first speaker, and a first sound guide member, wherein the first speaker comprises a first loudspeaker and a case, the first sound guide member is arranged between the case and the rear housing, a space is provided between the case and the rear housing, and the first sound guide member, the case and the rear housing jointly enclose a first sound cavity to accommodate the first loudspeaker; and the first sound guide member forms at least part of a first sound output port, and the first sound cavity, the first sound output port, and a sound hole provided in the side frame form a sound output channel, so that sound waves of the first loudspeaker are transmitted outwards. The first sound guide member is elastic.

Description

Display device TECHNICAL FIELD

[0001] Some embodiments of the present disclosure relate to the field of display technology, and in particular, to a display device. BACKGROUND

[0002] With the development of the field of display devices, users have increasingly high requirements for the visual and auditory effects of display devices such as televisions. The thickness of display devices such as televisions is becoming thinner and thinner, and the internal space of the thinner and thinner display devices is limited, which occupies the internal space of the loudspeaker, making it difficult for the display device to achieve good sound quality. SUMMARY

[0003] In one aspect, some embodiments of the present disclosure provide a display device, comprising:

[0004] a display module configured to display image information;

[0005] a rear shell located at the back side of the display module;

[0006] a side frame connected to the edge between the rear shell and the display module, the side frame being provided with a sound outlet hole;

[0007] a first sound box mounted between the display module and the rear shell, the first sound box comprising:

[0008] a box shell,

[0009] a first loudspeaker, a diaphragm of the first loudspeaker having a gap with the rear shell;

[0010] a first sound guide located between the box shell and the rear shell to elastically connect the box shell and the rear shell; the first sound guide, the box shell, and the rear shell collectively form a first sound cavity, and the first loudspeaker is located in the first sound cavity;

[0011] the first sound guide forms at least part of a first sound outlet, the first sound outlet being in communication with the first sound cavity; the first sound cavity, the first sound outlet, and the sound outlet hole form a sound outlet channel. BRIEF DESCRIPTION OF DRAWINGS

[0012] FIG. 1 is a cross-sectional view of a sound box in a display device in the related art;

[0013] FIG. 2 is a cross-sectional view of a display device according to some embodiments;

[0014] FIG. 3 is an exploded view of a sound box according to some embodiments;

[0015] FIG. 4 is a rear view of a sound box according to some embodiments;

[0016] Figure 5 is a partial cross-sectional view of a sound box and a back shell, according to some embodiments;

[0017] Figure 6 is a structural schematic diagram of a first sound guide, according to some embodiments;

[0018] Figure 7 is a partial connection schematic diagram of a first sound guide, according to some embodiments;

[0019] Figure 8 is a connection schematic diagram of a first sound guide and a box shell, according to some embodiments;

[0020] Figure 9 is a connection schematic diagram of a first sound guide and a box shell, according to some embodiments;

[0021] Figure 10 is a cross-sectional schematic diagram of a first sound guide, according to some embodiments;

[0022] Figure 11 is a cross-sectional schematic diagram of a first sound guide, according to some embodiments;

[0023] Figure 12 is a front view of a first sound guide, according to some embodiments;

[0024] Figure 13 is a back view of a first sound box, according to some embodiments;

[0025] Figure 14 is a back view of a display device without a back shell, according to some embodiments;

[0026] Figure 15 is a structural schematic diagram of a first sound box of a display device, according to some embodiments;

[0027] Figure 16 is an exploded view of a first sound box of a display device, according to some embodiments;

[0028] Figure 17 is a cross-sectional schematic diagram of a display device, according to some embodiments;

[0029] Figure 18 is a schematic diagram of an arrangement of sound holes, according to some embodiments;

[0030] Figure 19 is a schematic diagram of an arrangement of sound holes, according to some embodiments;

[0031] Figure 20 is a cross-sectional schematic diagram of a first sound box, according to some embodiments;

[0032] Figure 21 is a partial schematic diagram of a damping component and a back shell, according to some embodiments;

[0033] Figure 22 is a partial schematic diagram of a damping component and a back shell, according to some embodiments;

[0034] Figure 23 is a cross-sectional schematic diagram of a damping component installed in a sound hole, according to some embodiments;

[0035] Figure 24 is a structural schematic diagram of a damping component, according to some embodiments;

[0036] FIG. 25 is an exploded view of a bass enclosure, according to some embodiments;

[0037] FIG. 26 is a front view of a back shell with a bass enclosure, according to some embodiments;

[0038] FIG. 27 is an A-A sectional view of FIG. 26;

[0039] FIG. 28 is a zoomed-in view of region P in FIG. 30;

[0040] FIG. 29 is a schematic view of the position of a back shell and an enclosure, according to some embodiments;

[0041] FIG. 30 is a schematic view of the position of a back shell and an enclosure, according to some embodiments;

[0042] FIG. 31 is a schematic view of the position of a back shell and an enclosure, according to some embodiments. DETAILED DESCRIPTION

[0043] Some embodiments of the present disclosure will be described hereinafter with reference to the drawings, in which some embodiments of the present disclosure are shown. It will be obvious to those skilled in the art that the embodiments described are only some of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by those of ordinary skill in the art are within the scope of the present disclosure.

[0044] Unless the context clearly requires otherwise, throughout the description and the claims, the term "comprise", and variations thereof (such as "comprises" and "comprising"), will be construed to be inclusive, and not exclusive, in that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include additional elements not expressly listed or inherent to such process, method, article, or apparatus. In describing the embodiments of the present disclosure, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to indicate that the described feature, structure, material, or characteristic is included in at least one embodiment or example of the present disclosure. These terms are not necessarily intended to indicate a single embodiment or example, unless the context clearly requires this. Furthermore, the describing features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0045] Hereinafter, the terms "first", "second", "third", etc. are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0046] With the development of the field of display devices, users' requirements for the visual and auditory effects of display devices such as televisions are gradually increasing. In terms of vision, the thinning of display devices such as televisions is the industry trend. In terms of hearing, display devices usually output sound signals in the form of built-in speakers.

[0047] However, with the thinning of display devices, the installation space of the speaker on the display device is gradually reduced, and the sound quality effect of the display device is getting worse and worse, so it cannot meet the requirements of users.

[0048] In related technologies, the speaker used by the display device usually outputs sound in a physical vibration manner, and the output volume is realized by the diaphragm or vibration body itself. The diaphragm needs to have a vibration interval with the internal components of the display device, and the volume of the diaphragm affects the intensity of the output volume, so the volume of the traditional speaker cannot be reduced and must occupy the internal space of the display device, which is not conducive to the thinning of the display device.

[0049] In addition, due to the limited internal space of the display device, the volume of the speaker cannot be arbitrarily increased, so the intensity of the output sound field of the speaker inside the display device is limited. In display devices such as televisions, multiple different groups of speakers are usually set at different positions to create different sound field patterns, so the number of speakers required by the display device increases, and the problem of the speaker occupying the internal space of the display device is more serious.

[0050] Due to the above reasons, the speaker used by the display device in related technologies has the disadvantages of occupying space and insufficient output sound field intensity. Therefore, how to solve the above problems through structural improvement has become one of the important topics to meet the dual requirements of hearing and vision of display devices.

[0051] The sound generating structure in the display device is a sound box. As shown in FIG. 1, a cross-sectional view of the sound box in the display device in related technologies, the sound box is installed on the side of the rear shell 004 of the display device facing the display module 005.

[0052] The sound box comprises a box shell 002, a sound guide baffle 001 and a loudspeaker 003, wherein the box shell 002 is close to a display module 005, and the sound guide baffle 001 is close to a rear shell 004; the box shell 002 and the sound guide baffle 001 are both rigid components, and together form an accommodation cavity; the loudspeaker 003 is located in the accommodation cavity and is mounted on the box shell 002. Since the diaphragm of the loudspeaker 003 vibrates towards the rear shell 004, the sound guide baffle 001 guides the sound waves of the loudspeaker 003, for example, to the side of the display device.

[0053] The sound guide baffle 001 has a gap a with the diaphragm of the loudspeaker 003, the sound guide baffle 001 also has a gap b with the rear shell 004, and the sound guide baffle 001 itself has a thickness, which results in a large thickness of the sound box as a whole.

[0054] Since the display device of the related art has a narrow frame, there is not enough space to arrange the sound box. Therefore, the sound box is necessarily arranged on the back of the display module. The diaphragm of the loudspeaker has a large diameter, and the face where the diaphragm diameter is located is parallel to the display face of the display device. Therefore, the diaphragm needs a certain vibration interval, so that the interval a cannot be omitted; since the loudspeaker emits sound backward, a guiding member (for example, the sound guide baffle 001) for guiding sound waves is necessarily arranged, that is, the guiding member cannot be omitted. In order to avoid the guiding member from contacting other members (for example, the rear shell) of the display device and producing noise, a gap is also needed between the guiding member and the other members, that is, the interval b cannot be omitted. In this way, the sound box needs to provide a chamber to install the loudspeaker, and provide vibration interval and installation space for the guiding member, resulting in that the thickness of the sound box cannot be reduced.

[0055] The present disclosure researchers have carefully studied the components that realize vibration and sound emission in the structure of the sound box, and reorganized and analyzed the necessity of each component for the realization of the function of the sound box: for the sound box structure, the loudspeaker as a sound emitting element is essential; an installation position needs to be provided for the loudspeaker; an acoustic cavity and a side sound outlet need to be formed, and a vibration interval needs to be provided for the loudspeaker.

[0056] Through analysis, the present disclosure researchers believe that the sound guide baffle 001 in FIG. 1 can be omitted, and the omission of the sound guide baffle 001 can eliminate the thickness of the sound guide baffle itself and the interval b, which greatly contributes to reducing the thickness of the sound box.

[0057] The present disclosure researchers continue to further study the display device of the related art and the structure of the sound box thereof. The rear shell of the display device serves as an appearance part and plays a role in shielding the internal structure of the display device, and its structural stability is crucial. Therefore, the rear shell usually has an interval with the sound box, which not only can avoid the influence of the sound wave vibration of the sound box on the structural stability of the whole machine, but also can reduce the possibility of noise generated by the vibration of the rear shell.

[0058] The present inventors continue to analyze the sound box structure in the related art, as shown in FIG. 1, the sound guide baffle 001 is opposite to the rear shell 004 and has a gap, at least part of the rear shell 004 is plate-shaped, similar to the structure of the sound guide baffle 001. Therefore, the present inventors consider that the sound guide baffle 001 can be replaced by the rear shell 004 to guide the sound waves so that the sound box side surface sounds. But this brings a new problem, the rear shell bears the vibration of the sound waves, how to reduce the possibility of generating noise and ensure the acoustic effect?

[0059] The present inventors connect the box shell and the rear shell directly for experiment, find that the rear shell vibrates greatly, which not only affects the structural stability of the whole machine, but also leads to poor acoustic effect of the display device. This is because the box shell and the rear shell are both rigid parts, under the action of vibration, the two hard contact, generating noise. Moreover, the box shell is a mounting part of the loudspeaker, and the rear shell is an appearance part, both of which need to have rigid characteristics.

[0060] Therefore, the present inventors consider that the box shell and the rear shell are elastically connected through elastic parts; considering the sealing of the accommodation cavity at positions other than the sound outlet, the present inventors arrange the elastic sound guide between the box shell and the rear shell, use the rear shell, the sound guide and the box shell to form an acoustic cavity with a sound outlet, the sound guide makes the positions other than the sound outlet between the box shell and the rear shell closed, reduces the possibility of acoustic cavity leakage, and tries to make the sound waves concentratedly transmitted from the sound outlet, which is beneficial to improve the acoustic effect; when the sound waves are transmitted to the rear shell, the sound guide elastically deforms to absorb part of the sound wave energy on the rear shell, reduces the vibration force of the rear shell, and ensures the stability of the connection structure of the rear shell; which is beneficial to reduce the possibility of noise generated by the vibration of the rear shell, and ensure the acoustic effect; and when the sound waves are transmitted to the sound guide, the sound guide not only can guide the sound waves to the sound outlet, but also can absorb part of the sound wave energy, reduce the reflection of the sound waves, make the response of the sound in each frequency band smoother, and the sound quality effect better.

[0061] Since the sound guide baffle is cancelled, 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 sound box is reduced. Therefore, the display device of the present disclosure not only has small thickness, which is beneficial to the thin design of the display device, but also can have good sound quality.

[0062] The technical solutions in some embodiments of the present disclosure will be described clearly and completely in combination with the accompanying drawings in some embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0063] The display device provided by the embodiments of the present disclosure can have various implementation forms, for example, can be a television, a smart television, a monitor, an electronic bulletin board, an electronic table, or the like.

[0064] Some embodiments of the present disclosure provide a display device 10, which can be a liquid crystal display device, an OLED display device, a laser display device, or the like. The display device 10 has a sky side, an earth 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 a user when the user faces the display surface of the display device 10. Correspondingly, the side of the display device 10 facing the user is the front side, the side of the display device 10 away from the user is the 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 earth side.

[0065] In combination with FIG. 2, the display device 10 provided by some embodiments of the present disclosure includes a display module 100, which is configured 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 in the thickness direction of the display device, wherein the display side of the display module 100 faces the front surface of the display device.

[0066] In some embodiments, the display module 100 includes a display panel configured to display image information such as text and images. Exemplarily, the display panel can be a liquid crystal display panel.

[0067] In some embodiments, the display module 100 further includes a backlight assembly located at one side of the display panel. The backlight assembly is configured to provide backlight for the display panel, so that the display panel can modulate the backlight as needed to display different images.

[0068] In some embodiments, the display device 10 includes a back shell 200 located at the back side of the display module 100. The back shell 200 can be an appearance shell of the display device 10, and the material of the back shell 200 can be plastic, metal, or the like.

[0069] In some embodiments, the display device 10 includes a first sound box 300, which is a sound emitting component of the display device 10 and is arranged between the back shell 200 and the display module 100.

[0070] Continuing to refer to FIG. 2, in some embodiments, the first sound box 300 includes a first loudspeaker 320, which is a sound emitting element of the first sound box 300.

[0071] In some embodiments, the first speaker 320 is a midrange speaker. Illustratively, the sound wave frequency range of the first speaker 320 is 200Hz-8KHz, or the sound wave frequency range of the first speaker 320 is 200Hz-10KHz.

[0072] In some embodiments, the first speaker 320 is a full-range speaker, or a mid-high frequency speaker. Illustratively, the sound wave frequency range of the first speaker 320 is 200Hz-20KHz.

[0073] Illustratively, the first speaker 320 can include a diaphragm, a magnetic group, a support, a basket, a voice coil, etc., the support is used to mount the diaphragm, the magnetic group, the basket, and the voice coil, etc., the diaphragm vibrates under the cooperation of the magnetic group and the voice coil, thereby generating sound.

[0074] In some embodiments, the first sound box 300 includes a box shell 310, which is a housing part of the first sound box 300, and provides a mounting position for the first speaker 320.

[0075] In some embodiments, the box shell 310 can be an injection molded shell, for example, the box shell 310 is a plastic shell, which is molded by injection molding, and is simple to manufacture. In some embodiments, the box shell 310 can be a metal shell, which has high structural strength; when having the same structural strength, the metal material box shell 310 can be thinner, which is beneficial to reduce the thickness of the first sound box 300; and the metal material box shell 310 can be in contact with the magnetic group of the first speaker 320, which is beneficial to increase the heat dissipation area of the first speaker 320, and thus improve the heat dissipation effect of the first speaker 320.

[0076] The box shell 310 can be mounted on the back shell 200, and has sufficient mounting space and flexible connection mode.

[0077] The box shell 310 can be mounted on the back plate of the display device 10, which is located between the backlight assembly and the back shell 200, and can provide a mounting position for the backlight assembly. In this way, the box shell 310 can be mounted on the back plate, and then the back shell 200 is assembled, so that the display device 10 is simple to assemble; and the electrical connection between the first sound box 300 and the main control board of the display device 10 is facilitated, and the back shell 200 does not need to be disassembled when disassembling, which is simple and convenient.

[0078] In some embodiments, the box shell 310 is elastically connected with the back plate, 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 plate, which can avoid noise caused by rigid contact between the box shell 310 and the back plate, and can reduce vibration noise between the box shell 310 and the back plate, which is beneficial to improve the acoustic effect of the display device 10.

[0079] Exemplarily, in combination with FIG. 3, the box shell 310 is provided with a fixing hole 311, a fastener such as a screw or a bolt is threadedly connected with a threaded hole provided on the back plate through the fixing hole 311, and an elastic washer is arranged between the fastener and the box shell 310, and an elastic washer is arranged between the box shell 310 and the back plate, so as to realize the elastic connection between the box shell 310 and the back plate.

[0080] Exemplarily, in combination with FIG. 3, the box shell 310 is provided with a fixing hole 311, an elastic ring 312 is arranged in the fixing hole 311, and an annular groove is arranged on the circumferential side surface of the elastic ring 312, 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 is fixedly connected with the rear shell 200 through the through hole. 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 the rigid contact between the box shell 310 and the back plate and the rigid contact between the box shell 310 and the fastener.

[0081] In the related art, for example, the structure shown in FIG. 1, the box shell 002 is mounted on the rear shell 004, and due to the existence of the sound guide baffle 001, the spacing between the box shell 002 and the sound guide baffle 001 is large, and the column height of the threaded hole formed on the rear shell 004 is large, which not only consumes a large amount of material, but also has a large molding difficulty and a high demolding difficulty when the rear shell 004 is injection molded.

[0082] Compared with the related art, the spacing between the box shell 310 and the rear shell 200 in some embodiments of the present disclosure is small, which is beneficial to reducing the difficulty of connecting the fastener with the threaded hole and improving the assembly efficiency; moreover, the column height of the threaded hole formed on the rear shell 200 is small, which reduces the material consumption and is also beneficial to improving the structural stability; when the rear shell 200 is an injection molded part, it is beneficial to reducing the molding difficulty.

[0083] In some embodiments, a plurality of fixing holes 311 are arranged on the box shell 310, so as to improve the stability and reliability of the installation of the box shell 310. The plurality of fixing holes 311 are located at the edges of the box shell 310, so as to avoid affecting the arrangement of the loudspeaker.

[0084] Exemplarily, when the box shell 310 is in a rectangular shape, the fixing holes 311 are respectively arranged at the four top corners of the box shell 310, so as to not only ensure the stability of the installation of the box shell 310, but also reserve a large amount of space in the middle of the box shell 310 to flexibly arrange the loudspeaker.

[0085] Exemplarily, a plurality of fixing holes 311 are arranged on the side edges of the box shell 310, and the fixing holes 311 can also be located in the first sound cavity 301, as long as they do not affect the installation of the first loudspeaker 320 and the conduction of sound waves.

[0086] The first loudspeaker 320 can be mounted on the box shell 310 in various ways. For example, the spider of the first loudspeaker 320 is fixed on the box shell 310 by screws, and the fixing mode is stable and reliable. For another example, the spider of the first loudspeaker 320 is clamped or bonded on the box shell 310, and the fixing mode is simple.

[0087] In some embodiments, the first loudspeaker 320 is mounted on the side of the box shell 310 facing the back shell 200, so that the first loudspeaker 320 is directly opposite the back shell 200.

[0088] Since the diaphragm needs to reciprocate to produce sound, a vibration space needs to be reserved for the diaphragm of the first loudspeaker 320. In some embodiments of the present disclosure, the diaphragm of the first loudspeaker 320 has a gap with the back shell 200, so that the diaphragm reciprocates in the gap to produce sound.

[0089] The diaphragm of the first loudspeaker 320 faces the back shell 200 of the display device 10, so that the first loudspeaker 320 produces sound towards the back side of the display device 10, so that the acoustic effect of the display device 10 is poor, affecting the auditory effect.

[0090] Therefore, in some embodiments, the display device 10 includes a first sound guide 400 for guiding the sound wave backward to the side, so that the sound wave is 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, to improve the acoustic effect of the display device 10.

[0091] The first sound guide 400 is located between the box shell 310 and the back shell 200, and the first sound guide 400 is in contact with the box shell 310 and the back shell 200, respectively. The first sound guide 400, the box shell 310 and the back shell 200 jointly form a first sound cavity 301 to provide a mounting space for the first loudspeaker 320.

[0092] In some embodiments, in combination with FIGS. 2 and 3, the box shell 310 is formed with a mounting groove 313 having a first opening facing the back shell 200; the first loudspeaker 320 is mounted in the mounting groove 313, so that the thickness of the first loudspeaker 320 occupies the thickness space of the box shell 310, which is beneficial to reduce the thickness of the first sound box 300.

[0093] Exemplarily, the box shell 310 is in a plate shape, and the mounting groove 313 accommodating the first loudspeaker 320 is formed on the plate structure. In this way, the structure of the box shell 310 is simple, facilitating processing and installation.

[0094] In some embodiments, the back shell 200 is formed with a receiving groove to reserve a mounting space for the first loudspeaker 320. The receiving groove is formed when the box shell 310 is integrally formed, without the need for additional processes; the box shell 310 is in a plate shape, and the structure is simpler.

[0095] In some embodiments, the box shell 310 is plate-shaped, and the part of the rear shell 200 opposite to the box shell 310 is plate-shaped. The space between the box shell 310 and the rear shell 200 isolated by the first sound guide 400 forms a mounting space of the first speaker 320.

[0096] The first speaker 320 is located in the first sound cavity 301, and the first sound guide 400 forms at least part of the first sound outlet 302, which is in communication with the first sound cavity 301. In this way, at least part of the sound waves of the first speaker 320 are transmitted out through the first sound outlet 302 under the restriction of the first sound guide 400 and the rear shell 200, realizing the side sound emission of the first sound box 300.

[0097] The side sound emission of the first sound box 300 can be understood as that the first sound box 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 the other side of the first sound box 300 except the front side and the rear side, for example, the bottom side.

[0098] Therefore, the display device of the embodiments of the present disclosure cancels the sound guide baffle in the existing sound box, and forms the first sound cavity 301 containing the first speaker 320 by jointly enclosing the box shell 310, the first sound guide 400 and the rear shell 200. The diaphragm of the first speaker 320 emits sound towards the rear shell 200, and the sound waves are guided to the first sound outlet 302 by the first sound cavity 301, so that the sound waves are transmitted out, ensuring the sound effect of the first sound box 300. Since the sound guide baffle is cancelled, 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 sound box is reduced.

[0099] In combination with FIG. 4, 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.

[0100] In some embodiments, the first sound guide 400 can only surround the outside of the diaphragm of the first speaker 320. At this time, the first sound guide 400 can be in contact with the spider of the first speaker 320.

[0101] In some embodiments, the first sound guide 400 is arranged in the mounting groove 313. In this way, the first sound guide 400 with a larger thickness can be arranged, and the elastic force is more sufficient. The mounting groove 313 with a larger area can be arranged, and the number, position and interval of the first speaker 320 can be flexibly arranged according to the performance of the display device.

[0102] In some embodiments, the first sound guide 400 is located outside the mounting groove 313. In this way, the mounting groove 313 can have a smaller area, and the structural strength of the cabinet 310 can be ensured, and the possibility of deformation can be reduced. In addition, the first sound guide 400 is located outside the mounting groove 313, which facilitates installation and reduces the possibility of damage to the first loudspeaker 320 due to installation of the first sound guide 400.

[0103] In some embodiments, the first sound guide 400 is formed by setting a notch or a break, etc., to form the first sound outlet 302 separately, and the structure is simple. In other embodiments, the first sound guide 400 cooperates with the cabinet 310 to define the first sound outlet 302, which facilitates increasing the sound area of the first sound outlet 302.

[0104] With reference to FIGS. 3 and 4, 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 semi-enclosed outside the first loudspeaker 320. The break 401 forms at least part of the first sound outlet 302. In this way, the first sound guide 400 can be formed by splicing multiple strip sound guides, and the break 401 is formed at the same time. This not only makes the structure of the first sound guide 400 simple, and does not need to design additional molds to process the first sound guide 400, but also facilitates increasing the flexibility of the size and shape of the first sound guide 400, and forming sound cavities of different sizes and shapes.

[0105] 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 loudspeaker 320. In this way, the sound waves of the first loudspeaker 320 can be transmitted out through the break 401, and the break 401 can also avoid being too small to block the diaphragm on both sides of the first sound guide 400, and affect the sound effect.

[0106] In some embodiments, the length of the break 401 formed by the first sound guide 400 can have a certain deviation from the diameter of the diaphragm of the first loudspeaker 320. For example, the length of the break 401 is slightly larger than the diameter of the diaphragm, which can not block the transmission of sound waves, and can also avoid the break 401 being too large to cause sound waves to disperse and affect the structural strength of the first sound guide 400. For another example, the length of the break 401 is slightly smaller than the diameter of the diaphragm, which can be ignored for the blocking effect of sound waves, and can ensure the structural strength and supporting effect of the first sound guide 400.

[0107] In some embodiments, the mounting groove 313 extends to one side edge of the cabinet 310, for example, the bottom side, so that the mounting groove 313 forms a second opening facing the side of the cabinet 310. Here, the side of the cabinet 310 refers to the side other than the front side and the rear side of the cabinet 310. In this way, the first loudspeaker 320 is close to the edge of the cabinet 310, which facilitates lateral sound emission.

[0108] 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. In this way, the second opening and the break 401 jointly form the first sound outlet 302, which can increase the sound outlet area of the first sound outlet 302 and improve the sound effect. In addition, the first sound outlet 302 has no blocking structure, which is conducive to improving the sound effect.

[0109] For example, the two ends of the first sound guide 400 are respectively located at the two ends of the second opening, so that the break 401 of the first sound guide 400 is opposite to the second opening. This not only ensures the sound outlet area, but also avoids the problem that too large sound outlet area causes a large amount of dust and other impurities to enter the inside of the sound cavity.

[0110] In some embodiments of the present disclosure, 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 side of the mounting groove 313 corresponding to the first sound outlet 302 has no groove side wall, which not only makes the structure of the box shell 310 simple, but also facilitates processing.

[0111] For the structure in which the sound outlet is arranged on the groove side wall of the mounting groove 313, due to the limited size of the groove side wall and the high processing precision requirement, the processing difficulty of the box shell is large and the processing cost is high. In order to facilitate the processing of the sound outlet on the groove side wall, part of the area of the groove side wall is thickened to obtain sufficient processing space for the sound outlet, which is contrary to the original design intention of the thin sound box in some embodiments of the present disclosure.

[0112] In some embodiments of the present disclosure, the mounting groove 313 is arranged on the box shell 310 to accommodate part of the thickness of the first loudspeaker 320, and the first sound guide 400 with elasticity is arranged between the box shell 310 and the rear shell 200 to accommodate part of the thickness of the first loudspeaker 320, without the need to separately reserve a thickness interval for the first loudspeaker 320. The rear shell 200 is used as a sound guide structure for sound waves to realize side sound output while further reducing the thickness of the sound box, which is suitable for the limited rear space of the display device 10.

[0113] In addition, in some embodiments of the present disclosure, the first sound outlet 302 is formed by using the first sound guide 400, and part of the groove side wall of the mounting groove 313 is omitted, which increases the sound outlet area of the first sound outlet 302 and improves the sound effect. In addition, it is conducive to increasing the area of the mounting groove 313, and further improving the mounting space of the loudspeaker and the convenience of loudspeaker installation.

[0114] The first sound guide 400 of some embodiments of the present disclosure is elastic, such that the box shell 310 and the back shell 200 are elastically connected, and the thickness dimension of the first sound cavity 301 in the front-rear direction of the display device can be elastically increased or decreased to absorb part of the sound wave energy on the back shell 200, reduce the vibration force of the back shell 200, and ensure the stability of the connection structure of the back shell 200; it is beneficial to reduce the possibility of noise generated by the vibration of the back shell 200, and ensure the acoustic effect. Moreover, the first sound guide 400 makes the position between the box shell 310 and the back shell 200 other than the first sound outlet 302 always closed, that is, the first sound guide 400 plays a sealing role, reduces the possibility of sound leakage of the first sound cavity 301, and tries to make the sound waves concentratedly transmitted from the first sound outlet 302, further improving the sound effect.

[0115] Referring again to FIG. 2, in some embodiments of the present disclosure, the display device further comprises a side frame 250 connected to the edge between the back shell 200 and the display module 100. The side frame 250 is provided with a sound outlet hole 251.

[0116] 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 loudspeaker 320 are transmitted to the outside of the display device through the sound outlet channel.

[0117] 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 hole 251 is arranged on the bottom side of the side frame 250, the display device outputs sound from the bottom side, such as the center channel of the display device; when the sound outlet hole 251 is arranged on the top side of the side frame 250, the display device outputs sound from the top side, such as the sky sound channel of the display device; when the sound outlet hole 251 is arranged on the left side of the side frame 250, the display device outputs sound from the left side, such as the left channel and the surround channel of the display device; and when the sound outlet hole 251 is arranged on the right side of the side frame 250, the display device outputs sound from the right side, such as the right channel and the surround channel of the display device.

[0118] In some embodiments, the side frame 250 and the back shell 200 can be two independent components, so that the side frame 250 and the back shell 200 can be machined respectively, and the machining method is simple.

[0119] In other embodiments, the side frame 250 and the back shell 200 can be an integral piece, that is, the circumferential edge of the back shell 200 is bent and extended towards the display module 100 to form the side frame 250, so that the side frame 250 can be directly formed by using the one-piece molding of the back shell 200, reducing the assembly process of the side frame 250 and improving the assembly efficiency.

[0120] In combination with FIG. 5, the first sound guide 400 is in a closed loop shape, and one side of the first sound guide 400 facing the box shell 310 is recessed towards the back shell 200 to form a gap 402; the gap 402 is connected to 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 loop shape, which has high structural stability and facilitates the installation of the first sound guide 400.

[0121] When the mounting groove 313 is arranged on the box shell 310, the gap 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 gap 402 and the second opening of the mounting groove 313 jointly form the first sound outlet 302.

[0122] In combination with FIG. 3 and FIG. 4 again, in some embodiments, the first sound guide 400 is an integral part, which facilitates the improvement of the sealing property of the first sound guide 400 and avoids the partial gap of the first sound cavity 301 from affecting the sound transmission and causing noise.

[0123] In other embodiments, the first sound guide 400 includes multiple sound guide strips, which are spliced to form the first sound guide 400 and are arranged around the outside of the first loudspeaker 320. In this way, the installation of the first sound guide 400 is simple, and materials such as foam strips and sponge strips in the related art can be used without special shape design and processing.

[0124] For the first sound guide 400 formed with the gap 402, the sound guide strip with a small thickness at the corresponding position can form the gap 402.

[0125] In some embodiments, the sound guide strip is in a straight line type, which can further improve the convenience of installation and facilitate the formation of the first sound cavity 301 with a regular shape, so as to facilitate the matching of the volume of the first sound cavity 301 with the performance of the first loudspeaker 320.

[0126] In some embodiments, the sound guide strip is in a curved line type, such as an arc shape, which can match the shape of the first loudspeaker 320 and facilitate the concentrated transmission of sound waves.

[0127] As shown in FIG. 3 and FIG. 4, the first sound cavity 301 is in an open rectangular shape, and the first sound guide 400 is in a “Fang” type, one side of which forms the first sound outlet 302. In this way, the shape is regular, which facilitates the installation and design.

[0128] This is not a limitation on the shape of the first sound cavity 301. For example, the first sound cavity 301 can also be in a circular shape, an elliptical shape, a polygonal shape, or an irregular shape, etc.

[0129] In some embodiments, referring to FIGS. 3 and 4 again, the inner side of the first sound guide 400 facing the first sound cavity 301 is a plane, so that the structure of the first sound guide 400 is regular and simple, and the first sound guide 400 can be easily spliced by using a strip-shaped sound guide strip.

[0130] In some other embodiments, as shown in FIG. 6, at least a part of the inner side of the first sound guide 400 facing the first sound cavity 301 is a curved surface, for example, an arc surface. In this way, at least a part of the inner side of the first sound cavity 301 is a curved surface, which can reduce the vertical reflection of sound waves, thereby reducing the peaks and valleys of sound waves, and facilitating the improvement of the smoothness of sound waves.

[0131] In some embodiments, the inner side of the first sound guide 400 opposite to the first sound outlet 302 is a curved surface.

[0132] In some implementations, referring to FIG. 2 again, the first sound guide 400 is connected to the rear shell 200, for example, the first sound guide 400 is connected before the rear shell 200 is assembled, so that the operation space is sufficient and the connection efficiency is high. Moreover, when the internal structure of the display device is maintained by disassembling the rear shell 200, since the first sound guide 400 is located on the rear shell 200, the damage of the first sound guide 400 caused by improper maintenance operation can be reduced.

[0133] For example, the first sound guide 400 is bonded to the rear shell 200, for example, the first sound guide 400 is self-adhesive and is bonded to the rear shell 200; for another example, the first sound guide 400 is bonded to the rear shell 200 by using double-sided adhesive tape, glue, or the like. In this way, the connection mode is stable and reliable, the operation space is sufficient and the efficiency is high, and the first sound guide 400 is also convenient to disassemble and replace. Moreover, during the assembly process of the display device, the position of the first sound guide 400 can be adjusted to form a sound cavity volume with better sound quality.

[0134] In some other implementations, the first sound guide 400 is connected to the box shell 310, so that the first sound guide 400 constitutes a part of the first sound box 300. During the assembly process of the display device, the connection process of the first sound guide 400 does not need to be additionally added, which facilitates the simplification of the assembly process of the display device.

[0135] Exemplarily, the first sound guide 400 is bonded to the box shell 310, for example, the first sound guide 400 is provided with a back adhesive and is bonded to the box shell 310; for another example, the first sound guide 400 is bonded to the box shell 310 by double-sided adhesive, glue or the like. In this way, the connection is stable and reliable, simple to operate and efficient, and is also conducive to disassembly and replacement; moreover, the first sound guide 400 is bonded to the box shell 310 to form part of the sound box, so that positioning and bonding of the first sound guide 400 on the rear shell 200 are not required during the whole machine assembly process of the display device, thereby improving the assembly efficiency of the whole machine; the first sound guide 400 is bonded to the box shell 310 in a more accurate position, so that the set sound cavity volume is formed, and the possibility of affecting the sound cavity volume due to the position deviation of the first sound guide 400 is reduced.

[0136] In still some embodiments, the first sound guide 400 is connected to the box shell 310 and the rear shell 200 respectively, and the connection is stable and reliable. The connection mode of the box shell 310 and the rear shell 200 can be set so that the first sound box 300 is disassembled together with the rear shell 200 when the rear shell 200 is disassembled for maintenance of the display device; or when the first sound guide 400 is made of sponge, foam or the like, the rear shell 200 can be separated by damaging the first sound guide 400, and the first sound guide 400 is replaced when the display device is assembled.

[0137] In still some embodiments, as shown in FIG. 7, the first sound guide 400 includes a first sound guide layer 430 and a second sound guide layer 440 arranged in layers, the first sound guide layer 430 is 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 400. In this way, the stability of the connection of the first sound guide 400 can be ensured, and the guiding effect of the first sound guide 400 on sound waves can be improved, so that sound waves are transmitted from the first sound outlet.

[0138] In the above embodiments, the first sound guide layer 430 and the second sound guide layer 440 have equal areas in a plane parallel to the display surface, and the first sound guide layer 430 is in contact with the second sound guide layer 440 when the first sound box 300 is installed on the rear shell 200. Alternatively, one of the sound guide layers has an area greater than that of the other sound guide layer, for example, the first sound guide layer 430 has an area greater than that of the second sound guide layer 440; for another example, the second sound guide layer 440 has an area greater than that of the first sound guide layer 430, so that the two sound guide layers are in contact, and misalignment of the two sound guide layers due to assembly errors, machining precision and the like can be avoided.

[0139] In some embodiments, the first sound guide 400 is integrally mounted on the cabinet 310, or the first sound guide 400 is integrally mounted on the back cover 200, and the mounting is relatively simple.

[0140] In some other embodiments, part of the first sound guide 400 is connected to the cabinet 310, and another part of the first sound guide 400 is connected to the back cover 200. For example, when the first sound guide 400 includes multiple sound guide strips, part of the sound guide strips is connected to the cabinet 310, and part of the sound guide strips is connected to the back cover 200. In this way, the connection of the first sound guide 400 is flexible, and the display device is easy to assemble.

[0141] For example, when part of the first sound guide 400 connected to the cabinet 310 is damaged or fails due to improper transportation, etc., the sound guide strips on the cabinet 310 and the sound guide strips on the back cover 200 can be connected together to form the first sound guide 400, without the need to return the first sound box 300 to the factory for repair, thereby improving production efficiency.

[0142] In some embodiments, the first sound guide 400 is clamped between the cabinet 310 and the back cover 200, so that the first sound guide 400 is elastically compressed between the cabinet 310 and the back cover 200, without the need to increase the connection process of the first sound guide 400, thereby improving production efficiency.

[0143] In this way, the position of the first sound guide 400 is easy to move and needs to be adjusted repeatedly. Therefore, in some embodiments, in combination with FIGS. 8 and 9, the cabinet 310 is provided with a limiting portion 314 matched with the first sound guide 400, to limit the position of the first sound guide 400.

[0144] For example, referring to FIG. 8, the limiting portion 314 can be a groove provided on the cabinet 310; for example, referring to FIG. 9, the limiting portion 314 can be a convex or a protrusion provided on the cabinet 310, which limits the position of the first sound guide 400 and also improves the structural strength of the cabinet 310.

[0145] Of course, in some embodiments, the limiting portion 314 can be provided on the back cover 200, so that the limiting portion 314 can be integrally formed when the back cover 200 is formed, without the need to additionally increase the process.

[0146] In yet some other embodiments, the cabinet 310 and the back cover 200 are respectively provided with a limiting portion 314 matched with the first sound guide 400, to improve the reliability of limiting the position of the first sound guide 400, reduce the assembly difficulty, and improve the assembly efficiency.

[0147] Again in combination with FIG. 3 and FIG. 4, the first sound guide 400 elastically connects the cabinet 310 and the back cover 200, so that when the back cover 200 bears the vibration sound wave, the first sound guide 400 is deformed by the vibration force and absorbs the vibration force, avoiding the noise generated by the rigid contact between the back cover 200 and the cabinet 310.

[0148] In some implementations, at least part of the first sound guide 400 is elastic. As shown in FIG. 10 and FIG. 11, the first sound guide 400 includes an elastic part 410. The elastic part 410 can be in contact with the cabinet 310 or the back cover 200, so that the cabinet 310 and the back cover 200 are elastically connected.

[0149] The first sound guide 400 includes a rigid part 420, which can provide support and positioning for the elastic part 410, facilitate to ensure the shape of the first sound guide 400, and also provide a mounting structure for the first sound guide 400 to ensure the reliability of the installation of the first sound guide 400. One of the cabinet 310 and the back cover 200 is connected with the rigid part 420, and the other is connected with the elastic part 410.

[0150] The rigid part 420 is fixedly connected with the cabinet 310 or the back cover 200, for example, the rigid part 420 is bonded with the cabinet 310 or the back cover 200, and the connection mode is simple. For another example, the rigid part 420 is clamped with the cabinet 310 or the back cover 200, and the connection mode is stable.

[0151] In some embodiments, as shown in FIG. 10, the elastic part 410 and the rigid part 420 of the first sound guide 400 are arranged in a stack, and such arrangement can make the first sound guide 400 have a rigid part 420 with a larger area, facilitating the installation and fixation of the first sound guide 400.

[0152] For example, one of the cabinet 310 and the back cover 200 is bonded with the rigid part 420, and the other of the cabinet 310 and the back cover 200 is in contact with the elastic part 410, so that the bonding of the rigid part 420 is more stable and reliable, and the contact of the elastic part 410 makes the cabinet 310 and the back cover 200 elastically connected.

[0153] In other embodiments, as shown in FIG. 11, the rigid part 420 of the first sound guide 400 includes a plurality of rigid parts 421, which are arranged at intervals to provide support for the elastic part 410 while reducing the setting of the rigid part 420, not only facilitating to reduce the material usage of the rigid part 420, but also facilitating to reduce the weight of the first sound guide 400, and facilitating the light and thin design of the display device.

[0154] In some embodiments, as shown in FIG. 12, the rigid part 420 of the first sound guide 400 includes a plurality of rigid pieces 421, which are arranged at intervals along the extension direction of the elastic part 410. When the elastic part 410 includes a plurality of elastic pieces spliced together, the plurality of rigid pieces 421 are arranged at intervals along the length direction of each elastic piece. The extension direction of the elastic part 410 has a larger dimension, and the width direction of the elastic part 410 has a smaller dimension. Arranging the plurality of rigid pieces 421 at intervals along the extension direction of the elastic part 410 not only provides sufficient space for arrangement, but also facilitates providing support to the elastic part 410 and maintaining the shape of the first sound guide 400.

[0155] In other implementations, the first sound guide 400 is an elastic piece, for example, the first sound guide 400 is an elastic glue piece, foam, sponge, etc. In this way, the first sound guide 400 is a one-piece structure, which not only has better sealing performance and reduces the possibility of sound leakage, but also has sufficient elastic deformation force to ensure the elastic connection between the cabinet 310 and the back cover 200. In addition, the structure of the elastic piece of the related art can be used without additional processing and design, and the structure is simple.

[0156] If the thickness of the first sound guide 400 is less than 2 mm, the elastic deformation is small, which can easily cause the diaphragm of the first loudspeaker 320 to contact the back cover 200 and generate noise, or even be damaged. The thickness of the first sound guide 400 is the dimension of the first sound guide 400 along the thickness direction of the display device.

[0157] In some embodiments, the thickness of the first sound guide 400 is greater than or equal to 2 mm, which ensures that the first sound guide 400 has a certain thickness and elastic force, and avoids the contact between the back cover 200 and the cabinet 310.

[0158] If the thickness of the first sound guide 400 is greater than 4 mm, the first sound guide 400 has a large thickness, which increases the overall thickness of the first sound box 300 and is not conducive to the thinning design of the sound box.

[0159] In some embodiments, the thickness of the first sound guide 400 is less than or equal to 4 mm. In this way, the first sound guide 400 not only has a certain thickness to provide a vibration interval for the diaphragm of the first loudspeaker 320, but also has sufficient elastic deformation to facilitate prolonging the service life of the first sound guide 400.

[0160] In some embodiments, the thickness of the first sound guide 400 can be 2mm-4mm, for example, the thickness of the first sound guide 400 can be 2mm-2.5mm, 2.5mm-3mm, 3mm-3.5mm or 3.5mm-4mm. For example, the thickness of the first sound guide 400 can be 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm or 4.0mm, etc.

[0161] In this way, the first sound guide 400 can have sufficient thickness to ensure the elastic connection of the rear shell 200 and the box shell 310, and can also avoid the thickness of the first sound guide 400 being too large, which increases the overall thickness of the sound box and is not conducive to the thinning of the sound box.

[0162] If the width of the first sound guide 400 is less than 8mm, the first sound guide 400 has poor support effect and is easily broken by sound waves, resulting in sound leakage and affecting sound quality. The width of the first sound guide 400 is the size of the width direction of the sound guide strip forming the first sound guide 400. The guide strip extends along the length direction, and the width direction of the guide strip is perpendicular to the length direction of the guide strip.

[0163] In some embodiments, the width of the first sound guide 400 is greater than or equal to 8mm. In this way, the first sound guide 400 can have sufficient width to stably and reliably elastically support the first sound box 300 and guide sound waves.

[0164] If the width of the first sound guide 400 is greater than 10mm, not only the installation occupies a large space, but also the first sound guide 400 uses more materials.

[0165] In some embodiments, the width of the first sound guide 400 is less than or equal to 10mm. In this way, the first sound guide 400 can have sufficient width to form the first sound cavity 301, and the material usage of the first sound guide 400 can be reduced.

[0166] In some embodiments, the width of the first sound guide 400 can be 8mm-10mm, for example, the width of the first sound guide 400 can be 8mm-9mm or 9mm-10mm. For example, the width of the first sound guide 400 can be 8mm, 8.2mm, 8.4mm, 8.5mm, 8.6mm, 8.8mm, 9.0mm, 9.1mm, 9.2mm, 9.4mm, 9.5mm, 9.6mm, 9.8mm, 10.0mm, etc.

[0167] In this way, the first sound guide 400 not only has sufficient width to stably and reliably elastically support the first sound box 300, but also avoids being too wide, which leads to too large installation space.

[0168] In some embodiments, the density of the first sound guide 400 is greater than or equal to 24 kg / m3. In this way, the first sound guide 400 not only has sufficient elastic force, but also guides sound waves to be emitted from the sound outlet.

[0169] If the density of the first sound guide 400 is less than 24 kg / m3, the first sound guide 400 not only has insufficient elastic force, but also easily causes the rear shell 200 and the box shell 310 to be in rigid contact. In addition, the sound waves easily pass through the first sound guide 400, which causes sound leakage and affects sound quality.

[0170] If the density of the first sound guide 400 is greater than 26 kg / m3, the first sound guide 400 has excessive elastic force, which causes the sound waves to easily pass through the first sound guide 400 to the rear shell 200, and easily causes noise.

[0171] In some embodiments, the density of the first sound guide 400 is less than or equal to 26 kg / m3. In this way, the first sound guide 400 is easily elastically deformed, which increases the elastic force between the rear shell 200 and the box shell 310, reduces noise caused by rigid connection between the rear shell 200 and the box shell 310, and guides sound waves.

[0172] In some embodiments, the density of the first sound guide 400 is greater than or equal to 24 kg / m3 and less than or equal to 26 kg / m3. For example, the density of the first sound guide 400 ranges from 24 kg / m3 to 24.5 kg / m3, from 24.5 kg / m3 to 25 kg / m3, from 25 kg / m3 to 25.5 kg / m3, or from 25.5 kg / m3 to 26 kg / m3.

[0173] In this way, the first sound guide 400 is easily elastically deformed, which increases the elastic force between the rear shell 200 and the box shell 310, reduces noise caused by rigid connection between the rear shell 200 and the box shell 310, and guides sound waves.

[0174] With reference to FIGS. 3 and 4, in some embodiments, the first speaker 320 can be provided in plurality, 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 outside all the first speakers 320, and the plurality of first speakers 320 can share one first sound outlet 302, so that the sound waves are concentrated and transmitted out of the first sound outlet 302, improving the acoustic effect; and a plurality of speakers can be arranged in a limited space, improving the sound effect.

[0175] In some embodiments, in combination with FIG. 13, the first speaker 320 is provided in plurality, and the first sound cavity 301 is provided in plurality, wherein at least one first speaker 320 is independently arranged in one first sound cavity 301. In this way, the first sound outlets 302 of the plurality of first sound cavities 301 are all located on the same side of the cabinet 310, which is beneficial to ensure the directivity of the sound.

[0176] In some embodiments, each first speaker 320 is arranged in one first sound cavity 301, which can reduce the interference between different speakers.

[0177] Compared with arranging a larger first sound cavity 301 to accommodate all the first speakers 320, the above-mentioned arrangement of a plurality of smaller first sound cavities 301 increases the support positions of the first sound guide 400, ensures the elastic connection between the back shell 200 and the cabinet 310, and reduces the noise caused by the rigid contact between the back shell 200 and the cabinet 310 due to the insufficient elastic support effect of the first sound guide 400.

[0178] With reference to FIG. 4, in some embodiments, the first sound box 300 further comprises a second speaker 330, the second speaker 330 is mounted on the cabinet 310, and the second speaker 330 is located in the first sound cavity 301.

[0179] In some embodiments, the mounting groove 313 is large in size, so that the second speaker 330 can share one mounting groove 313 with the first speaker 320. In this way, the structure of the cabinet 310 is simplified.

[0180] In other embodiments, the mounting groove 313 can be provided in plurality, and the second speaker 330 and the first speaker 320 are respectively arranged in the mounting groove 313. In this way, the size of the mounting groove 313 is small, which is beneficial to ensure the structural strength of the cabinet 310.

[0181] In some embodiments, at least part of the sound wave frequency of the second speaker 330 is different from the sound wave frequency of the first speaker 320. For example, part of the sound wave frequency of the second speaker 330 is greater than the sound wave frequency of the first speaker 320.

[0182] Exemplarily, the second speaker 330 can be a tweeter, and the sound wave frequency range of the second speaker 330 can be 2KHz-20KHz. The first speaker 320 can be a midrange speaker, and the sound wave frequency range of the first speaker 320 can be 200Hz-8KHz, or 200Hz-10KHz.

[0183] In some embodiments, the sound wave frequency of the second speaker 330 is greater than the sound wave frequency of the first speaker 320.

[0184] In some embodiments of the present disclosure, the speakers of the first sound box 300 improve the acoustic effect of the display device through the cooperation of midrange and high-pitched sound.

[0185] In some embodiments, no sound guide is arranged 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 installation distance between the two is relatively short, and there is not enough space to arrange a sound guide, so that the second speaker 330 and the first speaker 320 share one sound cavity, which is beneficial to simplify the structure of the sound box.

[0186] In some embodiments, the display device 10 further comprises a second sound guide 500, which is located in the first sound cavity 301 and in contact with the rear shell 200 and the box shell 310. The second sound guide 500, the rear shell 200 and the box shell 310 jointly enclose a 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.

[0187] In this embodiment, the second sound guide 500 is arranged in the first sound cavity 301 to form the second sound cavity 501 for installing the 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 can be reduced; the sound emission direction of the second speaker 330 is the same as that of the first speaker 320, which can ensure that the sound waves are mixed and emitted at the same time, and the acoustic effect of the display device is ensured.

[0188] In this embodiment, the second sound guide 500 is arranged in the first sound cavity 301 to form the second sound cavity 501 for installing the 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 can be reduced; the sound emission direction of the second speaker 330 is the same as that of the first speaker 320, which can ensure that the sound waves are mixed and emitted at the same time, and the acoustic effect of the display device is ensured.

[0189] In some embodiments of the present disclosure, the second sound guide 500 is arranged to make the second speaker 330 and the first speaker 320 in different sound cavities, reduce the interference between different speakers, and improve the sound effect.

[0190] As shown in FIG. 3 and FIG. 4, in some embodiments, the first speaker 320 is provided in plurality; the second speaker 330 can be provided in one, and the second speaker 330 can be provided between two adjacent first speakers 320. Exemplarily, the first speaker 320 is provided in two, and the second speaker 330 is provided between the two first speakers 320, and the two first speakers 320 are symmetrically arranged about the second speaker 330, and such arrangement is conducive to improving the appearance characteristics of the first sound box 300.

[0191] As shown in FIG. 14, in some embodiments, the first speaker 320 is provided in plurality, and the second speaker 330 is provided at the end of the plurality of first speakers 320 as a whole. When the first sound box 300 is installed at the top side or the bottom side of the display device, such arrangement facilitates arranging the speaker with higher frequency on the side away from the vertical center line of the display device, and is conducive to improving the stereo effect of the display device and improving the width of the sound field.

[0192] In some embodiments, two first speakers 320 and one second speaker 330 are combined to form one sound emitting unit 303, and the sound emitting unit 303 is arranged in the same first sound cavity 301. Such arrangement can make it difficult to meet the requirements of sound emitting performance, power, etc. when the first sound box 300 is relatively thin, and therefore the two first speakers 320 are used in combination with the second speaker 330 to improve the sound emitting performance such as frequency width and sound loudness, and to improve the acoustic effect.

[0193] Referring to FIG. 15 and FIG. 16, in some embodiments, the first speaker 320 in the first sound box 300 is provided in plurality, and the second speaker 330 is provided in plurality; 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 frequency width and improve the acoustic performance such as sound loudness.

[0194] In the structure shown in FIG. 15, the first sound box 300 is provided in two, and the number of speakers included in the two first sound boxes 300 is different. Those skilled in the art can set the number of speakers in the first sound box 300 according to the actual arrangement space, acoustic requirements, etc. In some possible implementations, the structure shown in FIG. 15 can be used as a surround sound channel sound box of the display device.

[0195] In some possible implementations, the plurality of first speakers 320 are uniformly arranged at intervals along the length direction of the box shell 310, so as to improve the surround effect of the display device.

[0196] In some embodiments, the number of second speakers 330 is half of the number of first speakers 320, that is, the number of first speakers 320 is twice the number of second speakers 330, so that two first speakers 320 can be used in combination with one second speaker 330 to form a sound unit 303, thereby improving acoustic efficiency.

[0197] When the first sound box 300 has multiple sound units 303, the second speaker 330 can be positioned in various positions in the sound unit 303, for example, the second speaker 330 can be arranged between two first speakers 320, and for another example, the second speaker 330 can be arranged at the end of the sound unit 303.

[0198] The first sound box 300 can include one sound unit 303, so that the structure of the first sound box 300 is compact and the installation position is flexible.

[0199] The first sound box 300 can include multiple sound units 303, so that the first sound box 300 has sufficient frequency width, sound loudness, etc., thereby improving the surround effect.

[0200] In some embodiments, the first sound box 300 can be located at the bottom side of the rear shell 200, and the first sound outlet 302 faces downward, so that the first sound box 300 sounds downward.

[0201] In some embodiments, the first sound box 300 can be located at the left side of the rear shell 200, and the first sound outlet 302 faces left, so that the first sound box 300 sounds left; the first sound box 300 can be located at the right side of the rear shell 200, and the first sound box 300 sounds right.

[0202] In the above description, both the first speaker 320 and the second speaker 330 use the rear shell 200 and the sound guide member for sound wave guidance, which is not restrictive.

[0203] For example, in some embodiments, the first speaker 320 can be a mid-range speaker, and the second speaker 330 can be a high-range speaker; the first speaker 320 uses the rear shell 200 and the first sound guide member 400 to guide the sound wave, and the second speaker 330 is provided with a sound guide partition plate on one side of the rear shell 200, which guides the sound wave to the lateral sound outlet.

[0204] For another example, in some embodiments, the first speaker 320 can be a high-range speaker, and the second speaker 330 can be a mid-range speaker; the first speaker 320 uses the rear shell 200 and the first sound guide member 400 to guide the sound wave, and the second speaker 330 is provided with a sound guide partition plate on one side of the rear shell 200, which guides the sound wave to the lateral sound outlet.

[0205] In some embodiments, continuing to refer to FIGS. 3 and 4, the first sound box 300 further comprises a third speaker 340, which is mounted on a side of the box shell 310 facing the back shell 200, and a diaphragm of the third speaker 340 has a spacing from the back shell 200 to reserve a spacing for vibration of the diaphragm of the third speaker 340.

[0206] In some embodiments, the third speaker 340 is a bass speaker, and a sound wave frequency of the third speaker 340 can be lower than 200 Hz. An outer side of the third speaker 340 does not need to be provided with a sound guide, and the third speaker 340 is a bass speaker, which has a low requirement for directivity of sound waves.

[0207] Taking the first sound box 300 shown in FIG. 16 as an example, in some embodiments, a thickness of the box shell 310 can be 9 mm, and a volume of the box shell 310 is 0.4 L.

[0208] The two first speakers 320 of the first sound box 300 shown in FIG. 16 are full-range speakers, and a rated power is 12 W; the two second speakers 330 are tweeters, and a rated power is 12 W. A frequency range of the speakers of the first sound box 300 is 200 Hz-20 KHz. A distortion rate of the first sound box 300 is less than or equal to 7%. A characteristic sensitivity level of the first sound box 300 is greater than or equal to 78 dB.

[0209] The present inventors have found that, in the process of research, the sound emitted by the display device has peaks and valleys in some frequency bands of a frequency response curve of the sound, resulting in uneven sound and affecting sound quality. Through repeated research, it is found that, because the speaker transmits sound waves toward the opposite sound box wall, the sound waves are turned through reflection of the box body and are transmitted through the side sound outlet. Because the sound waves are reflected back and forth in the sound box, peaks and valleys of the sound are prone to occur in some frequency bands, resulting in uneven sound and affecting sound quality. In particular, for a bass speaker, the amplitude and airflow are large, and the sound waves are directly transmitted to the back shell 200, resulting in large vibration of the back shell 200 and easy generation of noise.

[0210] Therefore, in some embodiments, referring to FIG. 17, the sound outlet hole 201 is arranged on a part of the box wall of the first box 30a, the box wall provided with the sound outlet hole 201 is opposite to the first speaker 320 and has a spacing.

[0211] In some embodiments of the present disclosure, a sound emission direction of the sound outlet hole 201 is different from a sound emission direction of the first sound outlet 302. The sound emission direction of the sound outlet hole 201 is opposite to the diaphragm of the first speaker 320, and the first sound outlet 302 is located on a side of the first speaker 320.

[0212] The first cabinet 30a is a part of the first sound box 300 and is configured to form a first sound cavity 301 for accommodating the first speaker 320.

[0213] In some embodiments, the first cabinet 30a can be formed by the cabinet shell 310, the rear shell 200 and the first sound guide 400 in some embodiments described above, which facilitates reducing the thickness of the sound box. At this time, the rear shell 200 is provided with a sound outlet hole 201 at a region opposite to the diaphragm of the speaker, for example, the rear shell 200 is provided with a sound outlet hole 201 at a region opposite to the first speaker 320; for another example, the rear shell 200 is provided with a sound outlet hole 201 at a region opposite to the second speaker 330; for yet another example, the rear shell 200 is provided with a sound outlet hole 201 at a region opposite to the third speaker 340.

[0214] In other embodiments, the first cabinet 30a is a structure independent of the rear shell 200, and the first cabinet 30a has a spacing with the rear shell 200, so as to avoid vibration of the first cabinet 30a causing vibration of the rear shell 200. At this time, the first cabinet 30a is provided with a sound outlet hole 201 on a cabinet wall opposite to the rear shell 200.

[0215] Exemplarily, the first cabinet 30a includes the cabinet shell 310 and the sound guide baffle described above, and the sound guide baffle and the cabinet shell 310 jointly enclose the first sound cavity 301. The sound guide baffle has a spacing with the rear shell 200.

[0216] The first cabinet 30a arranged independently of the rear shell 200 makes the sound box have a closed structure, which facilitates transportation and protection of the internal structure; and requires a larger installation space than some embodiments described above.

[0217] Some embodiments of the present disclosure can make part of the sound waves pass out from the sound outlet hole 201 by arranging the sound outlet hole 201, reduce the reflection path of the sound waves in the first sound cavity 301, thereby reducing the back-and-forth reflection of the sound waves in the first sound cavity 301, further weakening the peak and valley of the sound frequency response curve in some frequency bands, improving the smoothness of the sound, and further improving the sound quality.

[0218] Moreover, by arranging the sound outlet hole 201 on the rear shell 200 at a region corresponding to the third speaker 340, it is facilitated to reduce the vibration force of the sound waves on the rear shell 200, and it is also possible to increase the transmission direction of the low-frequency sound waves, so that the low-frequency sound waves of the first sound box 300 can not only be transmitted laterally (for example, towards the ground side of the display device), but also be transmitted backward, thereby improving the acoustic effect.

[0219] In some embodiments, the sound hole 201 can be a circular hole, which is convenient to process, and the hole wall of the circular hole is smooth, which can reduce the stress concentration; compared with a polygonal hole with the same maximum hole diameter, the hole area of the circular hole is larger; when forming the same sound emitting area, the number of the circular holes is less, which can reduce the influence on the structural strength of the box wall. In some embodiments, the hole diameter of the sound hole 201 can be 2.5mm-3.5mm, which can avoid that the hole diameter of the sound hole 201 is too small to cause great processing difficulty and high processing cost, and also can avoid that the hole diameter of the sound hole 201 is too large to affect the structural strength of the first box body 30a.

[0220] In some embodiments, the sound hole 201 is provided with a plurality of sound holes 201, which can be arranged in a rectangular matrix or a circular matrix, which can increase the sound emitting area and improve the aesthetics of the rear shell 200.

[0221] In some embodiments, as shown in FIG. 18, the projection shape of the diaphragm 321 of the first loudspeaker on the rear box wall 32 is circular. The plurality of sound holes 201 are arranged in the projection area of the diaphragm 321 on the rear box wall 32. In other words, the plurality of sound holes 201 are all opposite to the diaphragm 321 of the first loudspeaker along the axial direction. Such arrangement is conducive to the sound waves being emitted through the sound holes 201, reducing the reflection path of the sound waves in the first sound cavity 301, thereby reducing the back-and-forth reflection of the sound waves in the first sound cavity 301, weakening the peak and valley of the sound frequency response curve in some frequency bands, improving the smoothness of the sound, and improving the sound quality.

[0222] 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, so as to weaken the peak and valley of these frequency bands, and make the sound smooth.

[0223] Since the sound waves are concentrated to be emitted through the sound hole 201, air flow sound is easily formed at the sound hole 201, which causes noise and affects the acoustic effect of the display device. The air flow sound refers to the friction sound between the vortex flow with a certain speed and the sound hole 201. If the air flow speed at the position of the sound hole 201 reaches 20m / s, the air flow sound that can be perceived by the human ear, or called "wind noise", can be generated.

[0224] To this end, in some embodiments, the cross-sectional area of the sound outlet hole 201 is reduced, for example, the diameter of the sound outlet hole 201 is reduced when the sound outlet hole 201 is a circular hole. Exemplarily, the diameter of the sound outlet hole 201 can be in a certain range. And the arrangement density of the sound outlet hole 201 is increased. It can be understood that the sound outlet area of all sound outlet holes 201 shown in FIG. 18 is the same as the sound outlet area of all sound outlet holes 201 shown in FIG. 19, the number of sound outlet holes 201 shown in FIG. 19 is more than the number of sound outlet holes 201 shown in FIG. 18, and the hole diameter of the sound outlet hole 201 shown in FIG. 19 is smaller than the hole diameter of the sound outlet hole 201 shown in FIG. 18.

[0225] By increasing the number of sound outlet holes 201 and reducing the single-hole area of the sound outlet hole 201, the gas flow velocity of a single sound outlet hole 201 is reduced, thereby reducing the airflow sound. However, the above-mentioned manner not only has high processing difficulty and high cost, but also affects the structural strength of the cabinet.

[0226] In some embodiments, in combination with FIG. 20, a damping component 210 is arranged on the cabinet wall provided with the sound outlet hole 201, and the damping component 210 is configured to provide damping action on the gas flow in the sound outlet hole 201, reduce the possibility of airflow sound of the sound outlet hole 201, reduce the wind noise, and improve the sound quality of the display device.

[0227] The damping component 210 covers at least part of the sound outlet hole 201 to separate the sound outlet hole 201 and 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 velocity, and thereby reduces the airflow sound.

[0228] In some embodiments of the present disclosure, the damping component 210 covers all sound outlet holes 201, provides damping action on the gas flow of each sound outlet hole 201, and reduces the airflow sound.

[0229] In some embodiments, the first cabinet 30a has a front cabinet wall 31, a rear cabinet wall 32, and a circumferential side wall 33, the front cabinet wall 31 and the rear cabinet wall 32 are opposite and have a spacing along the front-rear direction of the display device, the front cabinet wall 31 faces the display module 100, and the rear cabinet wall 32 is provided with the sound outlet hole 201; the circumferential side wall 33 is connected between the front cabinet wall 31 and the rear cabinet wall 32, and the circumferential side wall 33 is provided with a first sound outlet 302. In this way, the lateral sound of the first sound box 300 is realized.

[0230] In some embodiments, at least part of the first cabinet 30a is a metal plate part, for example, at least part of the front cabinet wall 31 is a metal plate part, for example, at least part of the rear cabinet wall 32 is a metal plate part. In this way, the structural strength of the first cabinet 30a is improved, and the deformation of the first cabinet 30a is reduced.

[0231] In some embodiments, the first cabinet 30a comprises a metal plate part and an injection molded plate part. The metal plate part can be bonded with the injection molded plate part, and the connection is simple. Alternatively, the metal plate part is used as an insert during injection molding of the injection molded plate part, and the injection molded plate part is integrally formed, and the connection is stable and reliable. The injection molded plate part can be a plastic plate part.

[0232] In some embodiments, the magnetic conductive yoke of the first speaker 320 is in contact with the metal plate part, which is conducive to improving the heat dissipation area of the first speaker 320, and further improving the heat dissipation effect of the first speaker 320.

[0233] When the rear shell 200 forms part of the first cabinet 30a, the rear shell 200 forms the rear cabinet wall 32 of the first cabinet 30a, the cabinet shell 310 forms the front cabinet wall 31 of the first cabinet 30a, and the first sound guide 400 and the slot side wall 3131 of the mounting slot 313 jointly form the circumferential side wall 33 of the first cabinet 30a.

[0234] In some embodiments, the cabinet wall of the first cabinet 30a provided with the sound hole 201 has an inner surface facing the first sound cavity 301 and an outer surface opposite to the inner surface.

[0235] In some embodiments, in combination with FIG. 20, the inner surface of the cabinet wall is provided with the damping component 210, so that the damping component 210 is hidden on the inner side of the first cabinet 30a, and the damping component 210 is protected.

[0236] In other embodiments, the outer surface of the cabinet wall is provided with the damping component 210, which facilitates replacement and maintenance of the damping component 210, and avoids occupying the internal space of the cabinet.

[0237] In yet other embodiments, the sound hole 201 is provided with the damping component 210. In this way, the replacement and maintenance of the damping component 210 are facilitated, and the damping component 210 does not increase the thickness of the first sound box 300.

[0238] The damping component 210 of some embodiments of the present disclosure is a porous structure. The damping component 210 is configured to absorb sound waves of the sound hole 201. When the sound waves pass through the damping component 210, the damping component 210 plays a damping role. The air and the hole wall of the damping component 210 vibrate and rub, so that part of the sound energy is converted into heat energy and is absorbed, thereby reducing the airflow sound.

[0239] In some embodiments, the damping component 210 is a sheet structure. In this way, the damping component 210 occupies a small thickness space during installation, and has little effect on the overall weight of the display device.

[0240] In some embodiments, the damping component 210 is a mesh with apertures formed by interlacing mesh wires, and the damping component 210 has a plurality of mesh holes uniformly distributed thereon, the cross-sectional area of the mesh holes being smaller than that of the sound hole 201. In this way, part of the mesh wires of the mesh can be opposite to the sound hole 201, and the mesh wires of the mesh cover at least part of the sound hole 201, so as to divide the larger sound hole 201 into a plurality of smaller holes, thereby increasing the air flow resistance and reducing the air flow noise.

[0241] When the mesh holes of the damping component 210 are circular holes and the sound hole 201 is a circular hole, the diameter of the damping component 210 is smaller than that of the sound hole 201.

[0242] For example, when the diameter of the sound hole 201 is 2.5 mm to 3.5 mm, the mesh number of the damping component 210 can be 300, so that the diameter of the damping component 210 is much smaller than that of the sound hole 201, thereby reducing the wind noise of the sound hole 201.

[0243] 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 hole 201, so that the mesh cloth can shield the sound hole 201 and provide damping effect for the gas flow of the sound hole 201. The mesh cloth is a kind of fabric with mesh holes, which can be interlaced by yarns to form a mesh structure. This structure makes the mesh cloth have air permeability, so that sound waves can still be transmitted out of the sound hole 201; the mesh cloth also has softness and elasticity, which is beneficial to improve the damping effect of the air flow; and the mesh cloth also has certain wear resistance, which is beneficial to improve the service life.

[0244] The 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 cloths. The mesh cloth can also be made of soft rubber or plastic wires. In addition, cotton and polyester are also used to make mesh cloths. Among them, the polyester mesh cloth has high tensile strength and wear resistance, and the nylon mesh cloth has good wear resistance and elasticity.

[0245] In some embodiments, the damping component 210 is arranged on the inner surface of the rear shell 200, so that the appearance of the rear shell 200 is clean and regular. 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 along the front-rear direction of the display device.

[0246] In some embodiments, the damping component 210 is arranged on the outer surface of the rear shell 200, which is beneficial to diversify the design of the damping component 210 and improve the aesthetics of the rear shell 200. Moreover, the damping component 210 is arranged on the outer side of the rear shell 200, which is convenient for disassembling the damping component 210 for cleaning, maintenance, etc., and does not occupy the internal space of the rear shell 200.

[0247] In some embodiments, the damping component 210 can be installed in various ways. For example, the damping component 210 is adhered to the rear shell 200, and the installation is simple. For another example, the damping component 210 is clamped to the rear shell 200, and the installation is simple, stable, and convenient to disassemble. For another example, the damping component 210 is fixed to the rear shell 200 by screws, and the stability is high.

[0248] In some embodiments, the damping component 210 covers all the sound holes 201, and the shape can be various. For example, the damping component 210 is annular, and only covers the rear shell 200 in the sound hole 201 setting area, as shown in FIG. 21, so that the material usage of the damping component 210 can be reduced. For another example, the damping component 210 is polygonal, for example, rectangular, as shown in FIG. 22, and covers the rear shell 200 in the sound hole 201 setting area and the internal area, so that the damping component 210 is simple in structure and convenient to process, and the contact area between the damping component 210 and the rear shell 200 is large, which is beneficial to improve the installation stability and reliability of the damping component 210. Of course, the shape of the damping component 210 is not limited to this, for example, the damping component 210 can also be circular, oval, flower-shaped, etc.

[0249] In some embodiments, the damping component 210 is of an integral structure, so that the overall installation of the damping component 210 is facilitated, and the appearance is good.

[0250] In some embodiments, the damping component 210 can be of a split structure, that is, the damping component 210 includes a plurality of meshes, and the plurality of meshes are spliced to form the damping component 210, so that the damping component 210 can be installed in a split manner, and the installation of the damping component 210 is more simple and flexible.

[0251] As shown in FIG. 23, the damping component 210 is arranged in the sound hole 201, and the damping component 210 can be sponge, foam, sound-absorbing cotton, etc., and can play a role in absorbing sound waves, reducing the possibility of airflow sound at the sound hole 201.

[0252] In some embodiments, the damping component 210 is configured to make the inside and outside of the rear shell 200 communicate through the sound hole 201, so that the sound waves can be partially absorbed by the damping component 210 when passing through the sound hole 201, and part of the sound waves can also be transmitted to the outside of the rear shell 200 through the sound hole 201, increasing the sound output direction of the sound waves.

[0253] In some embodiments, the damping component 210 can be interference fitted in the sound hole 201, and the installation is simple and reliable.

[0254] In some embodiments, the damping component 210 can also be fixed to the rear shell 200 by a fixing member. For example, the damping component 210 is fixed to a support, and the support can be installed on the rear shell 200 by screwing, clamping, or adhering, etc.

[0255] In some embodiments, referring to FIG. 23, an outer cover 230 is arranged on the back of the rear shell 200, covering the area where the sound hole 201 is arranged, playing a protective and shielding role for the damping component 210, and also helping to ensure the appearance of the rear shell 200.

[0256] In some embodiments, referring to FIG. 24, in some embodiments, the damping component 210 includes a plurality of layers of mesh, which are arranged in layers, and the mesh wires of adjacent two layers of mesh are arranged in an interlaced manner, reducing the area of a single mesh hole. For example, the damping component 210 includes a first layer of mesh 211 and a second layer of mesh 212 arranged in layers, the first layer of mesh 211 has a first mesh hole S1, and the second layer of mesh 212 forms a second mesh hole S2. The mesh wires of the first layer of mesh 211 and the mesh wires of the second layer of mesh 212 are arranged in an interlaced manner, so that the first mesh hole S1 and the second mesh hole S2 partially overlap to form an interlaced mesh hole S0 with a smaller single hole area.

[0257] Compared with a single layer of mesh, the damping component 210 of the embodiments of the present disclosure, by arranging a plurality of layers of mesh, not only helps to reduce the hole area of a single mesh hole, increase the air flow resistance, and further reduce the airflow sound, but also helps to improve the structural strength of the damping component 210, facilitating installation and fixation.

[0258] In some embodiments, the damping component 210 is a single layer of mesh, and the mesh wires of the single layer of mesh separate the sound hole 201 to form a plurality of sound emission small holes, increase the air flow resistance, and reduce the airflow sound. The damping component 210 of the single layer of mesh can reduce resonance between the plurality of layers of mesh.

[0259] From the above description, when the rear shell 200 is provided with the sound hole 201, the damping component 210 is arranged on the rear shell 200, and the damping component 210 is configured to allow the inside and outside of the rear shell 200 to communicate through the sound hole 201, which can not only ensure that the sound wave is transmitted through the sound hole 201, reducing the vibration force of the sound wave on the rear shell 200, but also can absorb the sound wave of the sound hole 201, reducing the airflow sound of the sound hole 201.

[0260] In the description of some of the above embodiments, the first sound box 300 can be provided with a third loudspeaker 340, and the third loudspeaker 340 is configured to emit bass, so that the first sound box 300 has bass characteristics. That is, the bass loudspeaker is integrated into the sound box with mid-high sound.

[0261] In some embodiments, the display device can also be separately configured with a sound box that emits bass. As shown in FIGS. 25 and 26, in some embodiments, the display device 10 includes a second sound box 600 configured to emit low-frequency sound. The second sound box 600 is mounted between the display module and the rear shell 200.

[0262] The second sound box 600 comprises a fourth loudspeaker 620 for emitting low-frequency sound. The frequency of the sound waves emitted by the fourth loudspeaker 620 can be lower than 200 Hz. The fourth loudspeaker 620 has low directivity requirements for sound waves, and does not need to be provided with a sound guide on the outer side thereof.

[0263] In some embodiments, in combination with FIG. 26 and FIG. 27, the fourth loudspeaker 620 comprises a support 622, which not only provides mounting positions for a sound cone, a magnetic circuit structure, etc., but also fixes the fourth loudspeaker 620 inside the sound box.

[0264] In some embodiments, the fourth loudspeaker 620 comprises a magnetic circuit structure, which comprises a U-shaped magnetic yoke 627, a magnet 628, a dust core 629, and a voice coil 626. The U-shaped magnetic yoke 627 is embedded in an opening provided at the center of the bottom of the support 622, and the magnet 628 and the dust core 629 are installed in the U-shaped magnetic yoke 627. The voice coil 626 is wound outside the magnet 628 and the dust core 629, and the bottom of the voice coil 626 is located in the U-shaped magnetic yoke 627. The inner surface of the voice coil 626 has a gap with the magnet 628 and the dust core 629, and the outer surface of the voice coil 626 has a gap with the U-shaped magnetic yoke 627.

[0265] The fourth loudspeaker 620 further comprises a first sound cone 623 and a second sound cone 624, both of which are annular. The outer side of the first sound cone 623 is attached to the top of the support 622, the inner side of the first sound cone 623 is attached to the outer side of the second sound cone 624, and the inner side of the second sound cone 624 is clamped to the top outer side of the voice coil 626. The first sound cone 623 and the second sound cone 624 are coaxially arranged, which is beneficial to reduce phase difference and improve the clarity and consistency of sound. The fourth loudspeaker 620 further comprises a spring 625, one end of which is linked to the support 622, and the other end of which is connected to the second sound cone 624.

[0266] In some embodiments, the fourth loudspeaker 620 can be provided with one or more. The number of the fourth loudspeaker 620 is not only related to the power of the loudspeaker, but also matched with the net volume of the sound box. When the net volume of the second sound box 600 is large, multiple fourth loudspeakers 620 can be arranged to improve the loudness of the sound box; when the net volume of the second sound box 600 is small, one fourth loudspeaker 620 can be arranged to ensure low-frequency sound emission. The net volume of the sound box is the volume of the sound box minus the space occupied by all components in the sound box.

[0267] As shown in FIG. 26 and FIG. 27, the second sound box 600 comprises a second box body 610, which is configured to form a third sound cavity 601 for providing mounting positions for the fourth loudspeaker 620.

[0268] In some embodiments, the second cabinet 610 includes a first shell 611 and a second shell 612 connected together, and the first shell 611 and the second shell 612 are fixedly connected to form a third sound cavity 601. The fourth loudspeaker 620 can be fixedly connected to the first shell 611, and / or the fourth loudspeaker 620 is fixedly connected to the second shell 612, so that the fourth loudspeaker 620 is fixed in the third sound cavity 601.

[0269] In some embodiments, referring to FIG. 25, the first shell 611 serves as a front side shell of the second cabinet 610, and is close to the back plate of the display device. The first shell 611 can be elastically mounted on the back plate, and the mounting manner can refer to the cabinet shell 310, which will not be described here. The second shell 612 serves as a rear side shell of the second cabinet 610, and is close to the rear shell 200 of the display device.

[0270] A damping member 630 is arranged between the second shell 612 and the rear shell 200, for damping the vibration transmitted from the second cabinet 600 to the rear shell 200. The damping member 630 can be bonded to the second shell 612 or the rear shell 200, and the connection manner is simple and reliable. Alternatively, the damping member 630 is clamped between the second shell 612 and the rear shell 200, without the need to additionally provide a connection structure of the damping member 630. Exemplarily, the damping member 630 can be sponge, foam, etc.

[0271] The damping member 630 is annular and surrounds the outside of the fourth loudspeaker 620. In some embodiments, the damping member 630 is arranged at the edge of the second shell 612, so that the middle region of the damping member 630 can be exposed outside the rear shell 200.

[0272] In some embodiments of the present disclosure, the fourth loudspeaker 620 is mounted on the second shell 612. In this way, the position of the fourth loudspeaker 620 can be adjusted by centering the voice coil of the fourth loudspeaker 620 and the through hole of the second shell 612, which facilitates the convenience of the connection between the voice coil and the second shell 612, and improves the accuracy of the relative position between the cover of the fourth loudspeaker 620 and the second shell 612, so that the installation position of the fourth loudspeaker 620 can be adjusted more flexibly.

[0273] In the related art, the second cabinet 610 is mostly made of plastic material. When the strength of the second cabinet 610 is insufficient, the second cabinet 610 is prone to deformation, loss of sound wave energy, and resonance with sound waves to produce noise.

[0274] The second cabinet 610 can improve the structural strength by increasing the wall thickness, but it is not suitable for the thin design of the sound box.

[0275] The second cabinet 610 can improve the structural strength by increasing the above-mentioned ribs, connecting columns, etc., but makes the forming die structure of the second cabinet 610 complex.

[0276] In some embodiments, at least a part of the second cabinet 610 is a metal plate part. In this way, the structural strength of the second cabinet 610 is improved, and the deformation of the second cabinet 610 is reduced. For example, at least a part of the first shell 611 is a metal plate part. For example, at least a part of the second shell 612 is a metal plate part.

[0277] In some embodiments, the first shell 611 includes a metal plate part and an injection molded plate part; and / or, the second shell 612 includes a metal plate part and an injection molded plate part. The metal plate part can be bonded with the injection molded plate part, and the connection method is simple; or, the metal plate part is used as an insert when the injection molded plate part is injection molded, and the injection molded plate part is integrally formed, and the connection is stable and reliable. The injection molded plate part can be a plastic plate part.

[0278] In some embodiments, the second cabinet 610 is a metal cabinet, which is beneficial to improve the structural strength and reduce the wall thickness of the cabinet, thereby facilitating the thin design of the sound box.

[0279] In some embodiments, the fourth loudspeaker 620 is installed in a region of the second cabinet 610 other than the metal plate part, for example, the fourth loudspeaker 620 is installed in the injection molded plate part. In this way, a connecting column can be formed in other regions of the metal plate part, the connecting column is formed in a simple way, and the installation of the fourth loudspeaker 620 is simple and reliable.

[0280] In some embodiments, the magnetic circuit structure of the fourth loudspeaker 620 is in contact with the metal plate part, for example, the U-shaped magnetic yoke 627 of the fourth loudspeaker 620 is in contact with the metal plate part, so as to expand the heat dissipation area of the fourth loudspeaker 620, thereby improving the heat dissipation effect of the fourth loudspeaker 620.

[0281] In combination with FIG. 25, in some embodiments, the first shell 611 is provided with an opening 6110 in communication with the third sound cavity 601, so that at least a part of the fourth loudspeaker 620 is exposed to the outside of the second cabinet 610. For example, the bracket 622 of the fourth loudspeaker 620 is exposed to the outside of the second cabinet 610 through the opening 6110, which is beneficial to improve the heat dissipation effect of the fourth loudspeaker 620.

[0282] In some embodiments, at least a part of the bracket 622 is located in the opening 6110, so that at least a part of the bracket 622 is embedded in the opening 6110, which can reduce the independent space required for the bracket 622, thereby reducing the overall thickness of the second sound box 600.

[0283] In some embodiments, the second shell 612 is provided with a second sound outlet hole 6120 in communication with the third sound cavity 601, so that at least part of the fourth loudspeaker 620 is exposed outside the second cabinet 610. For example, the first sound cone 623 and the second sound cone 624 of the fourth loudspeaker 620 are exposed outside the second cabinet 610 through the sound outlet hole, facilitating the outward propagation of sound waves.

[0284] In some embodiments, the first sound cone 623 and the second sound cone 624 are coaxially arranged with the second sound outlet hole 6120, facilitating the outward propagation of sound waves and avoiding the second shell 612 from blocking the vibrating part of the sound cone and affecting the transmission of sound waves.

[0285] In some embodiments, the second sound outlet hole 6120 is coaxially arranged with the opening hole 6110, which facilitates the installation of the fourth loudspeaker 620.

[0286] The amplitude and airflow of the fourth loudspeaker 620 are usually large, and therefore, there is a gap between the second sound box 600 and the rear shell 200 of the display device, so as to reduce the vibration force acting on the rear shell 200 and reduce the vibration of the rear shell 200.

[0287] However, the gap between the second sound box 600 and the rear shell 200 makes the installation of the second sound box 600 occupy a large space, which is not conducive to the thin design of the display device and the second sound box 600 thereof.

[0288] In combination with FIGS. 26 and 27, in some embodiments, the rear shell 200 is provided with a first sound outlet hole 240, so that at least part of the second sound box 600 is exposed outside the rear shell 200 through the first sound outlet hole 240. The second sound outlet hole 6120 of the second sound box 600 is opposite to at least part of the first sound outlet hole 240, so that sound waves can be transmitted outward through the first sound outlet hole 240.

[0289] As shown in FIG. 27, the fourth loudspeaker 620 further includes a cover 621, which is an appearance part or a decorative part of the fourth loudspeaker 620 and is exposed outside the rear shell 200.

[0290] The cover 621 is connected with the sound cone of the bass loudspeaker, and the cover 621 is opposite to at least part of the sound cone of the fourth loudspeaker 620, so that the cover 621 can protect the sound cone and vibrate with the sound cone to radiate sound waves.

[0291] In some embodiments of the present disclosure, the fourth loudspeaker 620 has a first diaphragm 623 and a second diaphragm 624, the cover 621 is connected to the first diaphragm 623, and the cover 621 is connected at a connection position of the first diaphragm 623 and the second diaphragm 624, the connection position has a relatively large rigidity, which is beneficial to improve the stability of the connection of the cover 621.

[0292] In some embodiments, the side of the cover 621 away from the diaphragm is a convex curved surface structure, for example, a convex arc surface, which has a large surface area and is beneficial to radiate sound waves.

[0293] In some embodiments, the cover 621 is bonded to the diaphragm of the fourth loudspeaker 620, for example, in some embodiments of the present disclosure, the cover 621 is bonded to the first diaphragm 623, and the connection mode is simple.

[0294] As shown in FIG. 28, the first diaphragm 623 includes a folded ring 6231, an outer connecting edge 6232, and an inner connecting edge 6233. The folded ring 6231 is in a U shape, and the inner side of the folded ring 6231 is connected to the inner connecting edge 6233, and the outer side of the folded ring 6231 is connected to the outer connecting edge 6232. The outer connecting edge 6232 is attached to the support 622, and the inner connecting edge 6233 is connected to the second diaphragm 624. The folded ring 6231 vibrates under the driving of the second diaphragm 624.

[0295] The cover 621 is bonded to the inner connecting edge 6233. Since the inner connecting edge 6233 is connected to the second diaphragm 624, the rigidity is relatively large, which is beneficial to ensure the stability of the connection of the cover 621 to the first diaphragm 623.

[0296] If the cover 621 is bonded to the folded ring 6231, the folded ring 6231 is relatively soft, which makes the connection stability of the cover 621 poor.

[0297] If the cover 621 is connected to the outer connecting edge 6232, since the outer connecting edge 6232 is attached to the support 622 and does not move, the cover 621 does not move, which will block sound waves and affect the sound effect of the bass loudspeaker 620.

[0298] Continuing to refer to FIG. 28, the cover 621 includes a cover plate 6211 and a connecting portion 6212, the connecting portion 6212 is arranged on the side of the cover plate 6211 facing the diaphragm of the fourth loudspeaker 620, and the connecting portion 6212 is connected to the first diaphragm 623. The connecting portion 6212 is in a ring shape, so that the cover 621 matches the limited connection area of the first diaphragm 623.

[0299] As shown in FIG. 28, the second shell 612 is provided with a convex 6126 on a side facing the first cone 623, and the convex 6126 abuts against the outer connecting edge 6232 of the first cone 623. When the fourth loudspeaker 620 is fixed on the second shell 612, the outer connecting edge 6232 is pressed against the convex 6126. By providing the convex 6126, the cooperation between the first cone 623 and the second shell 612 is facilitated to increase the friction between the outer connecting edge 6232 and the second shell 612, and reduce the possibility of movement between the first cone 623 and the second shell 612.

[0300] In some embodiments, the first sound outlet through hole 240 is provided on the back shell 200 to expose the cover 621 to the outside of the back shell 200. In combination with FIG. 27, the cover 621 is located in the first sound outlet through hole 240 to reserve space for vibration of the cover 621, and the cover 621 does not need to separately occupy space in the thickness direction of the display device, which facilitates reduction of the overall thickness of the second sound box 600.

[0301] Since the bonding area between the cover 621 and the first cone 623 is small, the connection between the cover 621 and the cone is unstable, and the cover 621 is prone to falling off due to glue opening. Therefore, in some embodiments, in combination with FIGS. 27 and 28, the cover 621 is clamped with the cone of the fourth loudspeaker 620, so that the connection between the cover 621 and the cone is more stable and reliable.

[0302] In some embodiments of the present disclosure, the connecting portion 6212 of the cover 621 is clamped with the inner connecting edge 6233 of the first cone 623, and the inner connecting edge 6233 of the first cone 623 has a large hardness, which facilitates improvement of the stability of the clamping between the connecting portion 6212 and the inner connecting edge 6233.

[0303] In combination with FIG. 28, in some embodiments, the inner connecting edge 6233 of the first cone 623 is provided with a recess 6234, and the connecting portion 6212 of the cover 621 is clamped with the recess 6234, which has a simple structure and a reliable connection mode.

[0304] The inner side of the inner connecting edge 6233 forms the recess 6234, and the processing mode is simple. Since the first cone 623 has elasticity, the clamping between the connecting portion 6212 and the recess 6234 is realized due to elastic deformation of the side wall of the recess 6234.

[0305] In some embodiments, the connecting portion 6212 is clamped with the recess 6234, and the connecting portion 6212 is bonded with the bottom wall of the recess 6234, which further improves the stability and reliability of the connection between the cover 621 and the first cone 623.

[0306] The sound box can form different sound effects at different positions of the display device, and the position arrangement of the sound box relative to the back shell of the display device in some embodiments of the present disclosure will be described below in combination with the drawings.

[0307] For convenience of description, it is defined that the rear shell 200 has a vertical center line O1 and a lateral center line O2, wherein the vertical center line O1 extends in the vertical direction, and the rear shell 200 has a top side and a bottom side opposite in the vertical direction; the lateral center line O2 extends in the lateral direction, and the rear shell 200 has a left side and a right side opposite in the lateral direction.

[0308] In some embodiments, as shown in FIG. 29, two first sound boxes 300 as shown in FIGS. 3 and 4 are provided, and are located at the bottom side of the rear shell 200 respectively. The two first sound boxes 300 are located below the lateral center line O2 and close to the bottom side edge of the rear shell 200. The first sound outlets 302 of the two first sound boxes 300 are downward, so that the two first sound boxes 300 sound downward. The two first sound boxes 300 are symmetrically arranged about the vertical center line O1. In addition, the third loudspeaker 340 emitting bass is close to the vertical center line O1, so that the first loudspeaker 320 and the second loudspeaker 330 of the two first sound boxes 300 have a larger interval, which is beneficial to improve the sound field width and stereo effect of the display device.

[0309] In some embodiments, as shown in FIG. 30, the display device includes a subwoofer sound box 710 to improve the low-frequency sound of the display device. The subwoofer sound box 710 can be a subwoofer sound box with a sound guide baffle in the related art; or the subwoofer sound box 710 is the second sound box 600 as shown in FIG. 23.

[0310] Generally, the second sound box 600 occupies a larger installation area, and the second sound box 600 can be installed at the center position of the rear shell 200. For example, two second sound boxes 600 are arranged laterally apart, and the two second sound boxes 600 are symmetrically arranged about the vertical center line O1 and the lateral center line O2 respectively.

[0311] Continuing to refer to FIG. 30, the display device further includes two first sound boxes 300. The first sound box 300 can be of the structure as shown in FIGS. 13, 14 or 16, and the first sound box 300 is free of a bass loudspeaker. The two first sound boxes 300 are located below the lateral center line O2 and close to the bottom side edge of the rear shell 200. The first sound outlets 302 of the two first sound boxes 300 are downward, so that the two first sound boxes 300 sound downward. The two first sound boxes 300 are symmetrically arranged about the vertical center line O1. The two first sound boxes 300 can form left and right sound channels and / or a center sound channel of the display device.

[0312] In some embodiments, as shown in FIG. 31, on the basis of the structure shown in FIG. 29 or FIG. 30, the display device further comprises surround sound speakers 720, which are conducive to improving the surround sound and stereo effect of the display device. The surround sound speakers 720 are arranged on the left and right sides of the rear shell 200 respectively, forming the surround sound channels of the display device. The two surround sound speakers 720 are symmetrical about the vertical center line O1 and symmetrical about the horizontal center line O2, ensuring the symmetry of sound wave transmission.

[0313] The surround sound speakers 720 emit sound laterally. Specifically, the sound outlet of the left surround sound speaker 720 is directed to the left, so that it emits sound to the left. The sound outlet of the right surround sound speaker 720 is directed to the right, so that it emits sound to the right.

[0314] The surround sound speakers 720 can be surround sound speakers of the related art, or the surround sound speakers 720 can adopt the first speaker 300 of some embodiments of the present disclosure, for example, the first speaker 300 shown in FIG. 15. The number and power of the loudspeakers of the two first speakers 300 forming the surround sound channels and the first speaker 300 arranged at the bottom can be different.

[0315] In some embodiments, as shown in FIG. 31, the display device further comprises two sky sound speakers 730. The sky sound speakers 730 can be sky sound speakers of the related art, or the sky sound speakers 730 can adopt the first speaker 300 of some embodiments of the present disclosure. The first speaker 300 can not have a bass loudspeaker, and the first sound outlet of the first speaker 300 is directed upward, so that the sky sound speaker emits sound upward. The two first speakers 300 are arranged above the horizontal center line O2 and close to the top side edge of the rear shell 200. The two first speakers 300 are arranged symmetrically about the vertical center line O1. In this way, the stereo effect of the display device is improved.

[0316] It should be noted that when the first speaker 300 is installed at different positions of the rear shell 200, the power and frequency of the first loudspeaker 320 and the second loudspeaker 330 can be different.

[0317] It should be noted that any one of the technical solutions disclosed in the present disclosure can solve one or more of the above technical problems and achieve certain invention purposes to some extent. Multiple technical disclosures can also be combined into an overall scheme to solve one or more of the above technical problems and achieve certain invention purposes. Some technical disclosures can also be selected and combined into an overall scheme, while related technologies and inferior schemes are used, but the inferior trend can be compensated by the technical disclosure means. Overall, one or more of the above technical problems and certain invention purposes are solved to some extent. Each technical disclosure is combined into a complete technical scheme, which constitutes an organic and indivisible overall scheme, and solves the technical problems and achieves certain invention purposes.

[0318] Any one of the technical disclosures in the present disclosure, and the recombination of multiple technical disclosures can form a complete technical solution, and can solve one or more of the above technical problems, achieve the purpose of the invention, belong to the content of the present disclosure, and belong to the content directly and without doubt determined according to the content of the present disclosure.

[0319] Those skilled in the art will understand that the scope of the disclosure of the present application is not limited to the above specific embodiments, and certain elements of the embodiments can be modified and replaced without departing from the spirit of the present disclosure. The scope of the present disclosure is limited by the appended claims.

Claims

1. A display device, characterized by comprising: The display device comprises: a display module configured to display image information; a back cover located at the back side of the display module; a side frame connected to the edge between the back cover and the display module, and provided with a sound outlet hole; a first sound box mounted between the display module and the back cover, and comprising: a box shell, a first loudspeaker with a diaphragm spaced apart from the back cover; a first sound guide located between the box shell and the back cover to elastically connect the box shell and the back cover; the first sound guide, the box shell and the back cover jointly form a first sound cavity, and the first loudspeaker is located in the first sound cavity; the first sound guide forms at least part of a first sound outlet opening, and the first sound outlet opening is in communication with the first sound cavity; the first sound cavity, the first sound outlet opening and the sound outlet hole form a sound outlet channel.

2. The display device of claim 1, wherein, The first sound guide comprises an elastic part in contact with the box shell or the back cover; or the first sound guide is an elastic part.

3. The display device of claim 1, wherein, The first sound guide is connected to the box shell and / or the back cover.

4. The display device of claim 3, wherein, The first sound guide is bonded to the box shell and / or the back cover; or the first sound guide is clamped between the box shell and the back cover, and the box shell and / or the back cover is provided with a limiting part matched with the first sound guide.

5. The display device according to any of claims 1-4, characterized in that, The first sound guide forms a gap to semi-enclose the outside of the first loudspeaker, and the gap forms at least part of the first sound outlet opening; or the first sound guide is a closed ring, and one side of the first sound guide towards the box shell is recessed towards the back cover to form a gap, and the gap forms at least part of the first sound outlet opening.

6. The display device according to any of claims 1-4, characterized in that, The box shell forms a mounting groove accommodating the first loudspeaker, and the groove side wall of the mounting groove is provided with an opening and jointly forms the first sound outlet opening with the first sound guide.

7. The display device according to any of claims 1-4, characterized in that, The first sound guide comprises a plurality of sound guide strips spliced to form the first sound guide.

8. The display device according to any of claims 1-4, characterized in that, The display device further comprises a second loudspeaker mounted on the box shell and located in the first sound cavity; The display device further comprises a second sound guide located in the first sound cavity, and the second sound guide is in contact with the back cover and the box shell respectively; the second sound guide, the back cover and the box shell jointly form a second sound cavity, and the second sound guide forms a second sound outlet opening on one side of the first sound outlet opening; and the second loudspeaker is located in the second sound cavity.

9. The display device according to any of claims 1-4, characterized in that, The back cover is provided with a plurality of sound outlet holes opposite to and spaced apart from the diaphragm of the first loudspeaker; The display device further comprises a damping part provided on the back cover and covering at least part of the sound outlet holes; and the damping part is configured to provide damping effect on the gas flow in the sound outlet holes.

10. The display device of claim 9, wherein, The damping component is in a sheet shape, and the damping component is arranged on an inner surface of the rear shell facing the first sound cavity; and / or the damping component is in a sheet shape, and the damping component is arranged on an outer surface of the rear shell facing away from the first sound cavity; and / or the sound hole is internally provided with the damping component.

11. The display device according to any one of claims 1 to 4, wherein The first sound box can further include a woofer, the woofer being mounted on a side of the box shell facing the rear shell, and a diaphragm of the woofer being spaced apart from the rear shell.

12. The display device according to any of claims 1-4, characterized by The display device further includes a second sound box, the second sound box including a second box body and a fourth speaker, the second box body being configured to form a third sound cavity, and the fourth speaker being located in the third sound cavity; at least a portion of the second box body is a metal plate portion, and the fourth speaker is mounted on an area of the second box body other than the metal plate portion.

Images