Display device

Abstract

This utility model relates to a display device, which includes a display panel, a back plate, a rear shell, and a speaker assembly. The speaker assembly includes a speaker housing, at least one first speaker, and at least one second speaker. The diaphragm of the first speaker is exposed on the back of the speaker housing and faces the rear shell; the diaphragm of the second speaker is exposed on the front of the speaker housing and faces the back plate. A venting channel is provided on the front of the speaker housing, and the diaphragm of the second speaker is disposed within the venting channel. At least one end of the venting channel extends to the side edge of the speaker housing and forms an outlet. A gas barrier layer is provided on the front of the speaker housing, and the gas barrier layer is disposed at the side edge of the venting channel. The diaphragms of the first and second speakers exert opposite forces on the speaker housing, thereby reducing the resultant force of the diaphragm vibration on the speaker housing and achieving vibration reduction and elimination of the speaker assembly.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a display device. Background Technology

[0002] In related display devices, the trend towards ultra-thin designs has led to limitations in speaker thickness, back shell strength, and speaker mounting gaps. This further results in poor low-frequency performance of the speakers and resonance in the overall structure of the display device, causing abnormal vibration and noise and affecting the user experience. Utility Model Content

[0003] The purpose of this invention is to provide a display device that optimizes the structure of a speaker and reduces or eliminates speaker vibration.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] According to one aspect of the present invention, a display device is provided, comprising: a display panel; a back plate, the display panel being disposed on the front side of the back plate; a rear shell, covering the back side of the back plate; and a speaker assembly, the speaker housing being a closed shell; the speaker assembly comprising: a speaker housing, disposed between the back plate and the rear shell; a first speaker, disposed within the speaker housing, the diaphragm end of the first speaker being exposed on the back side of the speaker housing and arranged towards the rear shell; the first speaker being capable of emitting sound towards the back side of the rear shell; and a second speaker... A second speaker is disposed within the speaker housing and on the outer periphery of the first speaker; the diaphragm end of the second speaker is exposed at the front of the speaker housing and is arranged towards the back plate; wherein, a venting channel is provided at the front of the speaker housing, and the diaphragm end of the second speaker is disposed within the venting channel; at least one end of the venting channel extends to the side edge of the speaker housing and forms an outlet; a gas barrier layer is provided at the front of the speaker housing, the gas barrier layer is disposed at the side edge of the venting channel and sandwiched between the front of the speaker housing and the back plate.

[0006] The above-mentioned technical solution has the following advantages or beneficial effects: By arranging the diaphragm end of the first speaker towards the rear shell and coordinating the diaphragm end of the second speaker towards the back plate, the vibration directions of the diaphragms of the first and second speakers are opposite. By having the diaphragms of the first and second speakers vibrate in opposite directions, they can exert opposite forces on the speaker housing, thereby reducing the resultant force of the diaphragm vibration on the speaker housing and weakening or eliminating the vibration of the speaker assembly. Furthermore, by arranging an air duct on the front of the speaker housing and placing the diaphragm end of the second speaker within the air duct, the abnormal air pressure generated by the vibration of the second speaker diaphragm can be discharged through the air duct and outlet into the space outside the speaker housing contour, achieving rapid pressure relief, improving the noise reduction and vibration damping of the second speaker, and eliminating abnormal vibrations of the display device. By placing a gas barrier layer on the side edge of the air guide channel, the air flow can be blocked at the side edge of the air guide channel. This allows the airflow generated by the vibration of the second speaker diaphragm to flow more strictly along the air guide channel, preventing the airflow from entering the narrow gap between the speaker housing and the back plate. This is more conducive to noise reduction of the airflow, avoids the impact of the narrow gap between the speaker housing and the back plate on the speaker performance, and avoids resonance caused by airflow turbulence. Attached Figure Description

[0007] Figure 1 This is a structural diagram of a display device according to some embodiments of this application.

[0008] Figure 2 This is an exploded structural diagram of a display device according to some embodiments of this application.

[0009] Figure 3 yes Figure 2 Another decomposed structure diagram.

[0010] Figure 4 yes Figure 2 A structural diagram of the loudspeaker assembly.

[0011] Figure 5 yes Figure 4 A structural diagram from another perspective.

[0012] Figure 6 This is a rear view of a display device according to some embodiments of this application.

[0013] Figure 7 yes Figure 6 Partial sectional view along the AA direction.

[0014] Figure 8 yes Figure 4 A front view of the image.

[0015] Figure 9 yes Figure 4A sectional view.

[0016] Figure 10 This is another exploded structural diagram of a display device according to some embodiments of this application.

[0017] Figure 11 yes Figure 10 A structural diagram of the loudspeaker assembly.

[0018] Figure 12 yes Figure 10 A partial cross-sectional view of the display device.

[0019] Figure 13 This is another exploded structural diagram of a display device according to some embodiments of this application.

[0020] Figure 14 yes Figure 13 A structural diagram of the loudspeaker assembly.

[0021] Figure 15 yes Figure 14 Structural diagrams of the speaker assembly in some other embodiments.

[0022] Figure 16 This is another exploded structural diagram of a display device according to some embodiments of this application.

[0023] Figure 17 yes Figure 16 A structural diagram of a loudspeaker assembly.

[0024] Figure 18 yes Figure 17 Rear view.

[0025] Figure 16 This is another exploded structural diagram of a display device according to some embodiments of this application.

[0026] Figure 17 yes Figure 16 A structural diagram of a loudspeaker assembly.

[0027] Figure 18 yes Figure 17 Rear view.

[0028] Figure 19 yes Figure 17 Structural diagrams of the speaker assembly in some other embodiments.

[0029] Figure 20 This is another exploded structural diagram of a display device according to some embodiments of this application.

[0030] Figure 21 yes Figure 20 A structural diagram of a loudspeaker assembly.

[0031] Figure 22yes Figure 21 Rear view.

[0032] Figure 23 yes Figure 21 Structural diagrams of the speaker assembly in some other embodiments.

[0033] Figure 24 This is another exploded structural diagram of a display device according to some embodiments of this application.

[0034] Figure 25 yes Figure 24 Another decomposed structure diagram.

[0035] Figure 26 yes Figure 24 A structural diagram of a loudspeaker assembly.

[0036] Figure 27 yes Figure 24 A partial cross-sectional view of the display device.

[0037] Figure 28 yes Figure 24 A magnified view of a portion of the backplate.

[0038] Figure 29 yes Figure 24 An enlarged structural diagram of the area where the loudspeaker assembly is located.

[0039] Figure 30 yes Figure 25 A partially enlarged structural diagram of the middle and posterior shell.

[0040] Figure 31 This is a rear view of a display device according to some embodiments of this application.

[0041] Figure 32 yes Figure 31 A decomposed structure diagram.

[0042] Figure 33 This is another exploded structural diagram of a display device according to some embodiments of this application.

[0043] Figure 34 yes Figure 33 A rear view.

[0044] Figure 35 yes Figure 34 A decomposed structure diagram.

[0045] Figure 36 yes Figure 34 A partial cross-sectional view of the display device. Detailed Implementation

[0046] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0047] High Fidelity (Hi-Fi) refers to the ability to minimize distortion and interference during the recording, processing, transmission, and playback of sound (or other signals) to faithfully reproduce the characteristics of the original signal. This concept is widely used in audio engineering, electronic equipment, and multimedia technology.

[0048] The current trend towards ultra-thin designs in televisions and other display devices has led to limitations in speaker thickness, back cover strength, and speaker mounting clearance. This further results in poor low-frequency performance of the speakers and resonance in the overall structure of the display device, causing abnormal vibration and noise that affects the user experience.

[0049] Currently, there are three main design options for television speakers: open-back enclosures (also known as bass-reflex enclosures), passive radiator enclosures, and closed enclosures.

[0050] An open-back enclosure features a bass reflex port tuned to a specific frequency, causing rear sound waves to be delayed and superimposed on front sound waves, thus enhancing low-frequency output. However, this type of enclosure, due to the presence of openings, inevitably introduces airflow noise, affecting the purity of low frequencies. Furthermore, the airflow at the openings can further impact the internal structure and back cover of the television, causing abnormal vibrations throughout the unit.

[0051] Passive radiator enclosures use a voiceless passive diaphragm (tuned by counterweights) instead of a bass reflex port to enhance low frequencies through resonance. The diaphragm mass and enclosure volume together determine the resonant frequency. This type of enclosure avoids the duct noise problem present in bass reflex speakers; however, the weight of the passive radiator affects low-frequency efficiency, and the larger low-frequency amplitude of the passive radiator can easily lead to distortion caused by excessive diaphragm amplitude.

[0052] A sealed enclosure is completely airtight, with the internal air acting as an elastic damping medium to absorb sound wave energy behind the speaker diaphragm and suppress excessive diaphragm vibration. This type of enclosure effectively avoids the wind noise and distortion drawbacks of bass-reflex and passive radiator enclosures. However, it suffers from low-frequency efficiency. Current sealed enclosures are designed for single-sided vibration, which leads to concentrated force exerted by the diaphragm on the enclosure, resulting in poor low-frequency performance. Furthermore, it easily transmits speaker vibrations to the entire unit, causing abnormal vibrations throughout the unit.

[0053] like Figure 1As shown, some embodiments of this application provide a display device, which may include a display panel 1. The display panel 1 includes a display surface for displaying images. For example, the display panel 1 may be a liquid crystal display panel 1, and the display device may be a liquid crystal display device or other display devices.

[0054] For ease of description, unless otherwise specified, the descriptions of up, down, left, right, front, and back directions in this document refer to the state when the display device is in use. The following embodiments are described with the light emission direction of the display panel 1 as the front and the opposite direction as the back side.

[0055] like Figure 2 As shown, in some embodiments, the display device may include a rear cover 2, which is configured as the exterior surface of the rear side of the display device and covers the display panel 1.

[0056] like Figure 2 and Figure 3 As shown, in some embodiments, the display device may include a back plate 3, which serves as a structural support for the display device and is disposed inside the display device. The display panel 1 may be disposed on the front side of the back plate 3. A rear shell 2 may be fitted onto the back side of the back plate 3. Optical films and other devices may be placed on the front side of the back plate 3, while electrical components and other devices may be placed on the back side. The rear shell 2 may be fitted onto and fixed to the back side of the back plate 3. The back plate 3 can improve the structural strength of the display device, while the rear shell 2 can decorate the display device and further enhance its structural strength.

[0057] In some embodiments, the display device may further include an electrical component 4, which may be a motherboard, power board, control board, or other heat-generating devices. The electrical component 4 and its electronic components are fixed to the back of the back plate 3 and disposed between the back plate 3 and the rear shell 2.

[0058] like Figure 2 and Figure 3 As shown, in some embodiments, the periphery of the rear shell 2 is provided with a forward-extending sidewall, and the periphery edge of the back plate 3 can be connected to the periphery sidewall of the rear shell 2 so that the rear shell 2 and the back plate 3 form a relatively closed space, thereby encapsulating the electrical components 4 and other devices in the space.

[0059] like Figure 4 and Figure 5 As shown, in some embodiments, the display device may include a speaker assembly 5 disposed between the back side of the back panel 3 and the rear housing 2. The speaker assembly 5 can emit sound to the outside of the rear housing 2.

[0060] like Figure 4 and Figure 5As shown, in some embodiments, the speaker assembly 5 may be provided in at least two sets. The two sets of speaker assemblies 5 may be respectively provided on the left and right sides of the back side of the back plate 3. The two sets of speaker assemblies 5 may also be provided on the upper and lower sides of the back side of the back plate 3.

[0061] It should be noted that the number of speaker components 5 can be adjusted as needed, and no limit is imposed here.

[0062] like Figure 3 , Figure 5 and Figure 6 As shown, in some embodiments, the rear housing 2 may be provided with a sound outlet 21, which is arranged opposite to the speaker assembly 5. The speaker assembly 5 can emit sound to the outside of the rear housing 2 through the sound outlet 21.

[0063] like Figure 3 and Figure 6 As shown, in some embodiments, the sound outlet 21 may be located on the rear sidewall of the rear housing 2. In other embodiments, the sound outlet 21 may also be located on any sidewall of the rear housing 2. Multiple sound outlets 21 may be provided, arranged at intervals on the rear sidewall of the rear housing 2. Multiple sets of sound outlets 21 may be provided, each set corresponding to a different set of speaker assemblies 5.

[0064] like Figure 4 and Figure 5 As shown, in some embodiments, the speaker assembly 5 may include a speaker housing 51, which may be disposed on the back side of the back plate 3 and between the back plate 3 and the rear shell 2. The speaker housing 51 can provide mounting space for other components of the speaker assembly 5. The speaker housing 51 is a closed housing with a closed cavity formed inside. The speaker housing 51 adopts a fully enclosed design, which distinguishes it from the design of a bass-reflex speaker (which has an internal duct). It should be noted that in some embodiments, the speaker housing 51 may also have one or more through holes of less than 3mm. The through holes of less than 3mm can be used for pressure relief and can also make the speaker housing 51 form a relatively closed housing.

[0065] like Figure 3 and Figure 5 As shown, in some embodiments, the speaker housing 51 can be detachably mounted on the back side of the back plate 3. For example, screw holes are provided at the peripheral edge of the speaker housing 51, through which the speaker housing 51 can be mounted and fixed to the back side of the back plate 3.

[0066] like Figure 4 and Figure 5 As shown, in some embodiments, the speaker housing 51 may have a square or rectangular structure. In other embodiments, the speaker housing 51 may also have other structural forms, which are not limited here.

[0067] like Figure 3 , Figure 5 and Figure 7 As shown, in some embodiments, the speaker assembly 5 may include at least one first speaker 52, which is disposed within the speaker housing 51. The diaphragm end 52a of the first speaker 52 may be exposed on the back side of the speaker housing 51, i.e., the rear surface of the speaker housing 51, so that the first speaker 52 can emit sound toward the back side of the speaker housing 51. The diaphragm end 52a of the first speaker 52 may be arranged toward the rear shell 2, and the magnetic circuit end 52b of the first speaker 52 may be arranged toward the back plate 3, so that the first speaker 52 can emit sound toward the back side of the rear shell 2. For example, the diaphragm 521 of the first speaker 52 may be arranged toward the rear shell 2, and the sound outlet 21 on the rear shell 2 may be arranged opposite to the diaphragm of the first speaker 52, so that the diaphragm 521 of the first speaker 52 vibrates, and the sound generated can be emitted toward the back side of the rear shell 2 through the sound outlet 21.

[0068] like Figure 3 and Figure 7 As shown, in some embodiments, multiple sound outlets 21 may be located within the projection range of the diaphragm 521 of the first speaker 52 onto the rear shell 2. It should be noted that in other embodiments, some sound outlets 21 may also be located outside the projection range of the diaphragm 521 of the first speaker 52 onto the rear shell 2.

[0069] like Figure 7 As shown, in some embodiments, a second gap 502 may be provided between the back of the speaker housing 51 and the rear housing 2. The space outside the diaphragm of the first speaker 52 may be connected to the second gap 502, so that the airflow generated by the diaphragm of the first speaker 52 can be partially transmitted to other areas between the rear housing 2 and the back plate 3 through the second gap 502.

[0070] like Figure 2 , Figure 4 and Figure 7 As shown, in some embodiments, the speaker assembly 5 may include at least one second speaker 53 disposed within the speaker housing 51. The second speaker 53 may be disposed on the outer periphery of the first speaker 52, such that the first speaker 52 and the second speaker 53 are arranged adjacent to each other. The diaphragm end 53a of the second speaker 53 may be exposed on the front of the speaker housing 51, i.e., the front surface of the speaker housing 51, so that the second speaker 53 can emit sound toward the front of the speaker housing 51. The diaphragm end 53a of the second speaker 53 may be arranged toward the back plate 3, and the magnetic circuit end 53b of the second speaker 53 may be arranged toward the rear shell 2, so that the second speaker 53 can emit sound toward the back plate 3.

[0071] The diaphragm end 52a of the first speaker 52 is arranged towards the rear housing 2, and the diaphragm end 53a of the second speaker 53 is arranged towards the back plate 3. Since the first speaker 52 and the second speaker 53 input the same audio signal, the diaphragm 521 of the first speaker 52 and the diaphragm 531 of the second speaker 53 vibrate in opposite directions. By vibrating the diaphragm 521 of the first speaker 52 and the diaphragm 531 of the second speaker 53 in opposite directions, the diaphragm 521 of the first speaker 52 and the diaphragm 531 of the second speaker 53 can exert opposite forces on the speaker housing 51, thereby reducing the resultant force of the diaphragm vibration on the speaker housing 51, weakening and eliminating the vibration of the speaker assembly 5, thus preventing the generation of abnormal vibration from the source, ensuring low-frequency sound effects, avoiding low-frequency sound distortion caused by abnormal vibration of the display device, and achieving a high-fidelity sound effect for the speaker assembly 5.

[0072] When conventional speakers operate normally in the low-frequency range, low-frequency resonance can cause abnormal resonance in the entire unit, producing low-frequency resonance sounds and distorting the low-frequency sound effects. This, in turn, can easily cause the sound emitted by speaker assembly 5 to be distorted, failing to achieve a high-fidelity effect. The display device of this embodiment is based on a sealed enclosure speaker. It forms a counter-drive unit by using a first speaker 52 and a second speaker 53 arranged in opposite directions to solve the problem of equalizing the reaction force of the ultra-thin sealed enclosure diaphragm. At the same time, the speaker power is increased by arranging multiple units to solve the low-frequency problem, thereby achieving a high-fidelity technical effect with no wind noise, low distortion, and high and low frequency response, thus improving the bass experience.

[0073] Specifically, the first speaker 52 and the second speaker 53 are arranged in opposite directions on opposite sides of the speaker housing 51. The same signal is input to the first speaker 52 and the second speaker 53, so that the vibration direction of the diaphragm 521 of the first speaker 52 is opposite to that of the diaphragm 531 of the second speaker 53. Therefore, the diaphragm 521 of the first speaker 52 and the diaphragm 531 of the second speaker 53 exert opposite forces on the speaker housing 51, thereby reducing the resultant force of the diaphragm vibration on the speaker housing 51, avoiding the generation of abnormal vibration, ensuring low-frequency sound effect, avoiding low-frequency sound distortion caused by abnormal vibration of the display device, and achieving high-fidelity sound effect of the speaker assembly 5.

[0074] Furthermore, compared to the enclosed enclosure design of a single-sided speaker, when the first speaker 52 and the second speaker 53 vibrate in opposite directions in this embodiment, the air inside the enclosure can be compressed or expanded simultaneously, which can both suppress excessive vibration of the diaphragm and prevent abnormal vibration of the speaker housing 51.

[0075] like Figure 7As shown, in some embodiments, the second speaker 53 is spaced apart from the back plate 3 to form a vibration space between the diaphragm 531 of the second speaker 53 and the back plate 3. The vibration airflow generated by the diaphragm 531 of the second speaker 53 can be transmitted to other areas on the back side of the back plate 3 through the vibration space, thereby effectively weakening and eliminating the vibration of the second speaker 53, achieving noise reduction and vibration damping of the second speaker 53, and preventing the vibration of the second speaker 53 from affecting the display effect of the display panel 1.

[0076] like Figure 7 As shown, in some embodiments, the front of the speaker housing 51 and the back of the back plate 3 are spaced apart to form a first gap 501 between them. The vibration space outside the diaphragm 531 of the second speaker 53 communicates with the first gap 501. This first gap 501 connects to the space outside the outline of the speaker housing 51, allowing the vibration airflow from the diaphragm end 53a of the second speaker 53 to exit outside the outline of the speaker housing 51 and be transmitted to other areas on the back side of the back plate 3, dissipating into other spaces inside the display device. This effectively weakens and eliminates the vibration of the second speaker 53, achieving noise reduction and vibration damping of the second speaker 53, and preventing the vibration of the second speaker 53 from affecting the display effect of the display panel 1.

[0077] like Figure 4 and Figure 7 As shown, in some embodiments, the second speaker 53 is located near the edge of the speaker housing 51. By positioning the second speaker 53 near the edge of the speaker housing 51, the propagation distance of the vibrating airflow from the second speaker 53 is shortened through the first gap 501. This allows the vibrating airflow generated by the diaphragm 531 of the second speaker 53 to be transmitted more quickly through the first gap 501 to other areas on the back side of the back panel 3, effectively weakening and eliminating the vibration of the second speaker 53 and preventing the vibration of the second speaker 53 from affecting the display effect of the display panel 1.

[0078] like Figure 8As shown, in some embodiments, the distance between the diaphragm 531 of the second speaker 53 and the adjacent side edge of the speaker housing 51 is less than half the diameter of the diaphragm of the second speaker 53. For example, the distance between the diaphragm of the second speaker 53 and the adjacent side edge of the speaker housing 51 is H1. The diameter of the diaphragm of the second speaker 53 is d. Then H1 and d satisfy the relationship: H1 < 0.5d. By making the distance between the diaphragm of the second speaker 53 and the adjacent side edge of the speaker housing 51 less than half the diameter of the diaphragm 531, the diaphragm 531 of the second speaker 53 can be arranged close to the edge of the speaker housing 51, making the distance between the diaphragm 531 of the second speaker 53 and the outside of the speaker housing 51 sufficiently small, thereby allowing the vibrating airflow generated by the diaphragm 531 of the second speaker 53 to be smoothly transmitted to other areas on the back side of the back plate 3 through the first gap 501. If H1 is greater than or less than 0.5d, the distance between the diaphragm of the second speaker 53 and the adjacent side edge of the speaker housing 51 is too large. The first gap 501 has a significant impact on the discharge of the vibration airflow. The first gap 501 cannot be too small, as this is not conducive to achieving the ultra-thin design requirements of the display device.

[0079] like Figure 7 As shown, in some embodiments, the first gap 501 can be less than or equal to 3 mm. Provided H1 < 0.5d, the distance between the front of the speaker housing 51 and the back of the back plate 3 can be less than or equal to 3 mm. With the second speaker 53 positioned near the edge of the speaker housing 51, the first gap 501 being less than 3 mm allows for an ultra-thin gap, which is beneficial for achieving the ultra-thin design requirements of the display device.

[0080] like Figure 7 and Figure 8 As shown, in some embodiments, the first speaker 52 is located near or positioned at the center of the speaker housing 51. Two second speakers 53 are provided, positioned on opposite sides of the first speaker 52. By distributing the two second speakers 53 on opposite sides of the first speaker 52, the reaction force of the diaphragm vibration of the two second speakers 53 on the speaker housing 51 overlaps with the reaction force of the diaphragm vibration of the first speaker 52 on the speaker housing 51, resulting in better force cancellation and more effectively reducing and eliminating vibration of the speaker assembly 5. Furthermore, the proximity of the first speaker 52 to the center of the speaker housing 51, combined with the two second speakers 53 positioned on opposite sides of the first speaker 52, allows the two second speakers 53 to be close to the opposite side edges of the speaker housing 51, thereby simultaneously reducing the distance between the two second speakers 53 and the corresponding side edges of the speaker housing 51.

[0081] In some embodiments, two second speakers 53 may be symmetrically arranged on opposite sides of the first speaker 52. By symmetrically arranging the two second speakers 53, the two second speakers 53 can be as close as possible to the first speaker 52, and the vibration distribution on both sides of the first speaker 52 can be made uniform. This also makes the force cancellation effect between the two second speakers 53 and the first speaker 52 better, thus ensuring the vibration elimination effect between the two second speakers 53 and the first speaker 52.

[0082] like Figure 8 As shown, in some embodiments, one pair of opposite sides of the speaker housing 51 forms a long side, and the other pair of opposite sides of the speaker housing 51 forms a short side. The first speaker 52 and two second speakers 53 can be arranged in a straight line. One second speaker 53, the first speaker 52, and the other second speaker 53 can be arranged sequentially along the short side of the speaker housing 51, with the two second speakers 53 respectively positioned close to one of the long sides of the speaker housing 51. By sequentially arranging the first speaker 52 and the two second speakers 53 along the short side of the speaker housing 51, the two second speakers 53 can be as close as possible to the long side of the speaker housing 51, reducing the distance between the two second speakers 53 and the corresponding side edges of the speaker housing 51. Simultaneously, the two second speakers 53 can be as close as possible to the first speaker 52, ensuring the vibration cancellation effect between the two second speakers 53 and the first speaker 52.

[0083] like Figure 7 and Figure 8 As shown, in some embodiments, a first receiving groove 511 is provided on the front of the speaker housing 51, and the diaphragm of the second speaker 53 can be disposed within the first receiving groove 511. The first gap 501 communicates with the first receiving groove 511. Because the diaphragm 531 of the second speaker 53 is disposed within the first receiving groove 511, the diaphragm end 53a of the second speaker 53 can be exposed on the front of the speaker housing 51. Because the first receiving groove 511 is recessed in the front of the speaker housing 51, and the diaphragm 531 of the second speaker 53 can be disposed within the first receiving groove 511, with the first gap 501 communicating with the first receiving groove 511, the vibration space of the diaphragm 531 of the second speaker 53 can include the first receiving groove 511 and the first gap 501. This facilitates expanding the vibration space of the diaphragm, increasing the distance between the diaphragm and the back plate 3, and consequently reducing the thickness of the first gap 501 between the speaker housing 51 and the back of the back plate 3, thus meeting the ultra-thin design requirements of the display device. Furthermore, the airflow from the diaphragm 531 of the second speaker 53 can enter the first gap 501 through the opening of the first receiving groove 511, and then be transmitted to the space outside the outline of the speaker housing 51 through the first gap 501.

[0084] like Figure 7As shown, in some embodiments, the bottom depth of the first receiving groove 511 is increased, so that the diaphragm of the second speaker 53 is arranged in the first receiving groove 511, thereby making the distance between the diaphragm of the second speaker 53 and the front of the speaker housing 51 greater than 3mm. This can provide sufficient vibration space for the diaphragm 531 of the second speaker 53 and help reduce the thickness of the first gap 501 between the speaker housing 51 and the back of the back plate 3, so as to meet the ultra-thin design requirements of the display device.

[0085] like Figure 7 and Figure 8 As shown, in some embodiments, the diaphragm 531 of the second speaker 53 may have a circular structure. The second speaker 53 includes a second support 532. The peripheral edge of the diaphragm of the second speaker 53 can be adhered to the second support 532, and the peripheral edge of the second support 532 can be fixed to the bottom wall of the first receiving groove 511. In this way, the diaphragm of the second speaker 53 can be fixed to the bottom wall of the first receiving groove 511 by the second support 532, so that the diaphragm of the second speaker 53 is fixed in the first receiving groove 511.

[0086] like Figure 5 and Figure 7 As shown, in some embodiments, a second receiving groove 512 may be provided on the back side of the speaker housing 51, and the diaphragm of the first speaker 52 is disposed in the second receiving groove 512, so that the diaphragm end 52a of the first speaker 52 can be exposed on the back side of the speaker housing 51. In this way, the vibration space of the diaphragm 521 of the first speaker 52 may include the second receiving groove 512 and the second gap 502, which is beneficial to expanding the vibration space of the diaphragm, increasing the distance between the diaphragm 521 of the first speaker 52 and the rear shell 2, and reducing the thickness of the second gap 502, so as to meet the ultra-thin design requirements of the display device.

[0087] like Figure 5 and Figure 7 As shown, in some embodiments, the diaphragm 521 of the first loudspeaker 52 may have a circular structure. The first loudspeaker 52 includes a first support 522. The peripheral edge of the diaphragm 521 of the first loudspeaker 52 may be attached to the first support 522 and fixed to the bottom wall of the second receiving groove 512 by the first support 522, so that the diaphragm 521 of the first loudspeaker 52 is fixed in the second receiving groove 512.

[0088] like Figure 4 , Figure 5 and Figure 7As shown, in some embodiments, the magnetic circuit end 52b of the first speaker 52 is exposed at the front of the speaker housing 51 and is arranged towards the back plate 3. By exposing the magnetic circuit end 52b of the first speaker 52 at the front of the speaker housing 51, heat dissipation of the magnetic circuit end 52b of the first speaker 52 is facilitated, thereby improving the heat dissipation efficiency of the first speaker 52.

[0089] In some embodiments, the magnetic circuit end 53b of the second speaker 53 is exposed on the back side of the speaker housing 51 and is arranged towards the rear housing 2. By exposing the magnetic circuit end 53b of the second speaker 53 on the back side of the speaker housing 51, heat dissipation of the magnetic circuit end 53b of the second speaker 53 is facilitated, thereby improving the heat dissipation efficiency of the second speaker 53.

[0090] like Figure 4 , Figure 7 and Figure 9 As shown, in some embodiments, the speaker housing 51 may include a first housing member 5101 and a second housing member 5102. The peripheral edges of the first housing member 5101 and the peripheral edges of the second housing member 5102 are joined together to form a closed housing structure with a closed inner cavity.

[0091] In some embodiments, the first housing 5101 may be arranged toward the back panel 3, and the second housing 5102 may be arranged toward the rear housing 2. A first receiving groove 511 may be formed on the front of the first housing 5101. A second receiving groove 512 may be formed on the back of the second housing 5102. A first speaker 52 and a second speaker 53 are respectively disposed between the first housing 5101 and the second housing 5102.

[0092] In some embodiments, the magnetic circuit end 52b of the first speaker 52 can be bonded and fixed to the second housing 5102, and the diaphragm end 52a of the first speaker 52 can be fixed to the first housing 5101 via the first bracket 522. The magnetic circuit end 53b of the second speaker 53 can be bonded and fixed to the first housing 5101, and the diaphragm end 53a of the second speaker 53 can be fixed to the second housing 5102 via the second bracket 532. In this way, the middle regions of the first housing 5101 and the second housing 5102 can be fixedly connected by the first speaker 52 and the second speaker 53 respectively, thereby improving the structural strength and structural stability of the speaker housing 51, and enabling the diaphragm 521 of the first speaker 52 and the diaphragm 531 of the second speaker 53 to apply opposite forces to the speaker housing 51, thereby reducing the resultant force of diaphragm vibration on the speaker housing 51, and realizing the weakening and elimination of vibration of the speaker assembly 5.

[0093] It should be noted that in some other embodiments, the relative positions of the first housing 5101 and the second housing 5102 can be interchanged.

[0094] Applications Figure 10 , Figure 11 and Figure 12 As shown, in some embodiments, a venting channel 54 may be recessed on the front side of the speaker housing 51. The venting channel 54 may communicate with the first gap 501. The diaphragm end 53a of the second speaker 53 may be disposed within the venting channel 54. At least one end of the venting channel 54 extends to the side edge of the speaker housing 51 and forms an outlet 541 that communicates with the space outside the outline of the speaker housing 51. One end of the venting channel 54 can communicate with the space outside the outline of the speaker housing 51 through the outlet 541, that is, with other spaces inside the display device. Thus, by connecting the air duct 54 with the first gap 501, and with the diaphragm end 53a of the second speaker 53 located within the air duct 54, abnormal air pressure generated by the vibration of the diaphragm 531 of the second speaker 53 can be discharged through the air duct 54 and the outlet 541 to the outside of the speaker housing 51, i.e., to the space outside the other contours inside the display device; and can also be discharged through the first gap 501 to the outside of the speaker housing 51, i.e., to the space outside the other contours inside the display device, achieving rapid pressure relief, improving the noise reduction and vibration damping of the second speaker 53, eliminating abnormal vibrations of the display device, and more effectively preventing the vibration of the second speaker 53 from affecting the display effect of the display panel 1. In addition, the setting of the air duct 54 allows for a reduction in the thickness of the first gap 501, which is beneficial for meeting the ultra-thin design requirements of the display device, avoiding the impact of an excessively small first gap 501 on the speaker assembly 5, and improving the low-frequency radiation energy of the speaker.

[0095] In some embodiments, the depth of the air duct 54 is greater than 3 mm. A depth greater than 3 mm increases the distance between the diaphragm of the second speaker 53 and the back plate 3, which increases the vibration space of the diaphragm and reduces the distance between the speaker housing 51 and the back plate 3. This allows the first gap 501 to form an ultra-thin gap, facilitating the ultra-thin design requirements of the display device. If the depth of the air duct 54 is less than 3 mm, the vibration space of the diaphragm of the second speaker 53 is insufficient, necessitating an increase in the thickness of the first gap 501.

[0096] In some embodiments, the two ends of the air duct 54 may extend to opposite side edges of the speaker housing 51. One end of the air duct 54 extends to one side edge of the speaker housing 51 and forms a first outlet 541a that spatially communicates with the outside of the speaker housing 51's outline. The other end of the air duct 54 extends to the other side edge of the speaker housing 51 and forms a second outlet 541b that spatially communicates with the outside of the speaker housing 51's outline. The two ends of the air duct 54 can be connected to the opposite sides of the speaker housing 51 through the first outlet 541a and the second outlet 541b, respectively. This allows the air duct 54 to simultaneously connect to the space outside the outline of the speaker housing 51 through the first outlet 541a and the second outlet 541b, that is, to other spaces inside the display device. This allows the air pressure generated by the vibration of the diaphragm 531 of the second speaker 53 to be quickly discharged through the first outlet 541a and the second outlet 541b in the air duct 54. This avoids the impact of the first gap 501 being too small on the speaker assembly 5, and achieves shock absorption and elimination of abnormal vibration.

[0097] like Figure 11 and Figure 12 As shown, in some embodiments, the speaker assembly 5 includes a first speaker 52 and two second speakers 53. One second speaker 53, the first speaker 52, and the other second speaker 53 are sequentially arranged within the air guide channel 54, with the two second speakers 53 positioned on opposite sides of the first speaker 52. The diaphragm ends 53a of the two second speakers 53 are exposed outside the air guide channel 54. The sequential arrangement of the two second speakers 53, the first speaker 52, and the other second speaker 53 within the air guide channel 54 allows some of the air pressure generated by the vibration of the diaphragms 531 of the two second speakers 53 to move towards each other along the air guide channel 54, achieving mutual cancellation and significantly reducing the vibration air pressure between the two second speakers 53. Simultaneously, some of the air pressure generated by the vibration of the diaphragms 531 of the two second speakers 53 can be discharged to the outside of the speaker housing 51 through the first outlet 541a and the second outlet 541b, respectively, i.e., discharged into other spaces inside the display device, thereby achieving vibration damping and eliminating abnormal vibrations.

[0098] It should be noted that in some other embodiments, the air guide channel 54 may also be located only in the area between the two second speakers 53, with one end of the air guide channel 54 extending to the diaphragm 531 of one second speaker 53 and the other end extending to the diaphragm of the other second speaker 53. In this way, the air pressure generated by the vibration of the diaphragms 531 of the two second speakers 53 can be transmitted towards each other through the air guide channel 54, thereby canceling each other out and significantly reducing the vibration air pressure between the two second speakers 53, achieving vibration reduction and eliminating abnormal vibration.

[0099] In some embodiments, a first receiving groove 511 is provided on the front of the speaker housing 51, and the diaphragm of the second speaker 53 is disposed in the first receiving groove 511. The air guide channel 54 can communicate with the first receiving groove 511. Through the communication between the air guide channel 54 and the first receiving groove 511, the airflow vibrating from the diaphragm of the second speaker 53 can enter the air guide channel 54 through the opening of the first receiving groove 511, and then be transmitted to the outside of the contour of the speaker housing 51 through the outlet 541 of the air guide channel 54, that is, discharged into other spaces inside the display device, or canceled out by the airflow vibrating from the diaphragm of the other second speaker 53 through the air guide channel 54.

[0100] In some embodiments, the first receiving groove 511 may be disposed in the air guide channel 54, and the first receiving groove 511 may be recessed in the inner wall of the air guide channel 54, thereby increasing the distance between the diaphragm of the second speaker 53 and the back plate 3, which is beneficial to reduce the first gap 501 between the speaker housing 51 and the back of the back plate 3.

[0101] like Figure 11 and Figure 12 As shown, in some embodiments, a reinforcing portion 513 may be provided on the front of the speaker housing 51, and the reinforcing portion 513 is disposed between the two second speakers 53. One end of the reinforcing portion 513 extends to the edge of a first receiving groove 511, and the other end of the reinforcing portion 513 extends to the edge of another first receiving groove 511. The two second speakers 53 can be connected by the reinforcing portion 513, enhancing the structural connection strength of the area between the two second speakers 53, thereby ensuring the structural strength of the front of the speaker housing 51. In addition, the recessed structure of the air guide channel 54 can also enhance the structural strength of the front of the speaker housing 51. At the same time, the reinforcing portion 513 can form a uniform force-bearing area between the two second speakers 53, so that the force exerted by the diaphragms 531 of the two second speakers 53 on the speaker housing 51 and the reverse force exerted by the diaphragm 521 of the first speaker 52 can overlap as much as possible, thereby reducing the resultant force of diaphragm vibration on the speaker housing 51.

[0102] In some embodiments, a reinforcing portion 513 is disposed within an air duct 54, and a first speaker 52 is disposed within the reinforcing portion 513. The reinforcing portion 513 divides the air duct 54 into two channel units 540, which are disposed on opposite sides of the reinforcing portion 513 and the first speaker 52. The two ends of the two channel units 540 can respectively converge and communicate at a first receiving groove 511. The reinforcing portion 513 can enhance the structural strength of the speaker housing 51 at the front of the air duct 54. Two channel units 540 are formed on opposite sides of the reinforcing part 513 and the first speaker 52, and two second speakers 53 are arranged on opposite sides of the first speaker 52. This concentrates the resultant force generated by the vibration of the two second speakers 53 in the area where the reinforcing part 513 is located, which coincides with the range of the reaction force of the first speaker 52 on the speaker housing 51. This makes the speaker housing 51 more evenly stressed and the force cancellation is better. In addition, the two channel units 540 are formed with streamlined structures, which makes the air leakage in the air guide channel 54 more even and can reduce the impact of acoustic impedance gas on the speaker when the diaphragm vibrates.

[0103] like Figure 13 and Figure 14 As shown, in some embodiments, the first speaker 52 can be arranged within the outline of the air duct 54, and the magnetic circuit end 52b of the first speaker 52 is exposed outside the air duct 54. The vibration of the second speaker 53 can create airflow within the air duct 54. The airflow within the air duct 54 can carry the heat generated by the first speaker 52 out through the outlet 541 of the air duct 54 to the outside of the speaker housing 51, thereby improving the heat dissipation efficiency of the speaker assembly 5 and helping to increase the power of the speaker assembly 5.

[0104] like Figure 14 As shown, in some embodiments, the width of the air passage 54 gradually increases in the direction from the first speaker 52 toward either end of the air passage 54, so that the width of the air passage 54 is the smallest and the airflow velocity is the largest at the position of the first speaker 52, thereby improving the heat dissipation effect on the magnetic circuit end 52b of the first speaker 52.

[0105] like Figure 14 As shown, in some embodiments, the magnetic circuit end 52b of the first speaker 52 can be located in the middle of the air guide channel 54. At the location of the first speaker 52, the width of the air guide channel 54 gradually increases in both the direction towards the first outlet 541a and the direction towards the second outlet 541b, forming a streamlined, gradually changing structure. This is more conducive to noise reduction of the airflow and avoids abnormal vibrations caused by airflow turbulence.

[0106] In some embodiments, the widths of the first outlet 541a at one end of the air guide channel 54 and the second outlet 541b at the other end of the air guide channel 54 are the same, and are respectively greater than the width of the air guide channel 54 at the position of the first speaker 52. The heat generated by the first speaker 52 can flow to the first outlet 541a and be dissipated to the outside of the speaker housing 51 through the first outlet 541a. The heat generated by the first speaker 52 can also flow to the second outlet 541b and be dissipated to the outside of the speaker housing 51 through the second outlet 541b.

[0107] In some embodiments, the air passages 54 are symmetrically arranged in two parts on opposite sides of the first speaker 52. This allows the speaker housing 51 to experience more balanced forces in the air passage 54 regions on opposite sides of the first speaker 52, thereby making the impact of the vibrations of the two second speakers 53 on the speaker housing 51 more balanced.

[0108] like Figure 15 As shown, in some embodiments, the two parts of the air passage 54 located on opposite sides of the first speaker 52 can also be arranged asymmetrically. In this case, the width of the first outlet 541a can be greater than or less than the width of the second outlet 541b.

[0109] For example, the speaker assembly 5 is arranged closer to one side edge of the display device, the first outlet 541a is closer to the corresponding side edge of the rear shell 2, and the second outlet 541b is closer to the center of the rear shell 2. The mechanical strength of the center of the rear shell 2 is weaker than that of the side edge of the rear shell 2. In this case, the width of the second outlet 541b is greater than that of the first outlet 541a, which makes the width of the air passage 54 from the first speaker 52 to the second outlet 541b wider. The vibration of the second speaker 53 at the air passage 54 corresponding to the second outlet 541b is weaker, while the vibration at the air passage 54 corresponding to the first outlet 541a is stronger, which can make the vibration generated by the rear shell 2 more balanced.

[0110] For example, the speaker assembly 5 is arranged closer to one side edge of the display device, and the first outlet 541a is closer to the corresponding side edge of the display device. In this case, the distance between the second outlet 541b and the side edge of the display device is greater than the distance between the first outlet 541a and the side edge of the display device, and the space outside the speaker housing 51 outside the second outlet 541b is greater than the space outside the first outlet 541a. This makes the width of the second outlet 541b greater than that of the first outlet 541a, allowing more heat generated by the first speaker 52 to be dissipated through the second outlet 541b to other spaces outside the outline of the speaker housing 51, thereby improving heat dissipation efficiency.

[0111] like Figure 14 and Figure 15As shown, in some embodiments, the first speaker 52 is positioned at the center of the air passage 54, and the two second speakers 53 are positioned near the opposite edges of the speaker housing 51. The first speaker 52 and the two second speakers 53 can be arranged sequentially along the short side of the speaker housing 51, with the two second speakers 53 positioned near one long side of the speaker housing 51. By positioning the second speakers 53 near the edges of the speaker housing 51, the airflow distance generated by the vibration of the second speakers 53 in the air passage 54 is shortened, allowing the airflow to exit through the air passage 54 to the outer area of ​​the speaker housing 51 more quickly, effectively reducing and eliminating vibration. Furthermore, by positioning the first speaker 52 at the center of the air passage 54, and with the two second speakers 53 positioned near the opposite edges, the force on the speaker housing 51 is more balanced, resulting in a better force cancellation effect for the speaker housing 51.

[0112] like Figure 16 , Figure 17 and Figure 18 As shown, in some embodiments, the speaker assembly 5 includes a speaker housing 51 and a first speaker 52 and a second speaker 53 disposed within the speaker housing 51. The diaphragm end 52a of the first speaker 52 may be exposed on the back of the speaker housing 51 and arranged towards the rear shell 2, so that the first speaker 52 can emit sound towards the back side of the speaker housing 51. The diaphragm end 52a of the first speaker 52 may be arranged towards the rear shell 2, and the magnetic circuit end 52b of the first speaker 52 may be arranged towards the back plate 3, so that the first speaker 52 can emit sound towards the back side of the rear shell 2. The second speaker 53 may be disposed on the outer periphery of the first speaker 52, so that the first speaker 52 and the second speaker 53 are arranged adjacent to each other. The diaphragm end 53a of the second speaker 53 may be exposed on the front of the speaker housing 51, so that the first speaker 52 can emit sound towards the front side of the speaker housing 51. The diaphragm end 53a of the second speaker 53 may be arranged towards the back plate 3, and the magnetic circuit end 53b of the second speaker 53 may be arranged towards the rear shell 2, so that the second speaker 53 can emit sound towards the back plate 3.

[0113] In some embodiments, at least three second speakers 53 are provided, and the at least three second speakers 53 are circumferentially spaced around the outer periphery of the first speaker 52. By distributing at least three second speakers 53 circumferentially spaced around the outer periphery of the first speaker 52, the reaction force of the vibration of the diaphragm 531 of the three or more second speakers 53 on the speaker housing 51 coincides with the reaction force of the vibration of the diaphragm 521 of the first speaker 52 on the speaker housing 51. This reduces the resultant force of the diaphragm vibration on the speaker housing 51, thereby reducing and eliminating the vibration of the speaker assembly 5. This results in a better force cancellation effect and more effectively reduces and eliminates the vibration of the speaker assembly 5, thus preventing the generation of abnormal vibrations from the source, ensuring low-frequency sound effects, avoiding low-frequency sound distortion caused by abnormal vibration of the display device, and achieving high-fidelity sound from the speaker assembly 5.

[0114] like Figure 17 and Figure 18 As shown, in some embodiments, the speaker assembly 5 may include three second speakers 53. The line connecting the three second speakers 53 forms an equilateral triangle, and the three second speakers 53 may be located at the three vertices of the equilateral triangle. The first speaker 52 may be located at the center of the equilateral triangle. The line connecting the three second speakers 53 forms an equilateral triangle (as shown in the attached diagram). Figure 17 As shown by the dashed line, the reaction force of the vibration of the three second speakers 53 on the speaker housing 51 is located at the center of the equilateral triangle. With the first speaker 52 located at the center of the equilateral triangle, the reaction force of the vibration of the three second speakers 53 on the speaker housing 51 coincides with the reaction force of the first speaker 52 on the speaker housing 51. This makes the force cancellation effect better and can more effectively reduce and eliminate the vibration of the speaker assembly 5.

[0115] In some embodiments, the speaker assembly 5 may include at least three second speakers 53, which may be arranged circumferentially spaced on the same circumference (as shown in the attached figure). Figure 17 (As shown by the dashed line in the middle), the first speaker 52 is located at the center of the circle. The reaction force of the vibration of the three or more second speakers 53 on the speaker housing 51 is located at the center of the circle. With the first speaker 52 located at the center, the reaction force of the vibration of the three or more second speakers 53 on the speaker housing 51 coincides with the reaction force of the first speaker 52 on the speaker housing 51. This makes the force cancellation effect better and can more effectively reduce and eliminate the vibration of the speaker assembly 5.

[0116] For example, the speaker assembly 5 may include four second speakers 53, which are circumferentially spaced around the periphery of the first speaker 52 (not shown in the figure). The connection between the four second speakers 53 may be rectangular or square. The four second speakers 53 are circumferentially spaced on the same circumference, such that the reaction force of the vibration of the four second speakers 53 on the speaker housing 51 is located at the center of the circumference. With the first speaker 52 located at the center, the reaction force of the vibration of the four second speakers 53 on the speaker housing 51 coincides with the reaction force of the first speaker 52 on the speaker housing 51, thus improving the force cancellation effect and more effectively reducing and eliminating the vibration of the speaker assembly 5.

[0117] It should be noted that the number of second speakers 53 arranged around the first speaker 52 can be adjusted as needed, and no limitation is made here.

[0118] It should also be noted that, in the current speaker assembly 5, under the design scheme of the display device, the first speaker 52 and the second speaker 53 in the speaker assembly 5 cannot be arranged coaxially in opposite directions, which requires increasing the thickness of the speaker housing 51. However, the speaker assembly 5 of this embodiment arranges multiple opposing second speakers 53 around the first speaker 52, thereby increasing the speaker power and solving the low-frequency problem through multi-unit arrangement. As the number of second speakers 53 around the first speaker 52 increases, the range of action of the multiple second speakers 53 can more closely overlap with the range of action of the opposing force of the first speaker 52, gradually reducing the resultant force on the speaker housing 51, and realizing the reduction and elimination of vibration of the speaker assembly 5.

[0119] like Figure 16 and Figure 17 As shown, in some embodiments, a venting channel 54 is recessed on the front of the speaker housing 51, and the first speaker 52 and at least three second speakers 53 can be arranged within the contour of the venting channel 54. The diaphragm ends 53a of the at least three second speakers 53 can be disposed within the venting channel 54. In this way, the airflow from the diaphragms of the three or more second speakers 53 can be discharged to the outside of the speaker housing 51 through the venting channel 54, achieving rapid pressure relief, improving the noise reduction and vibration damping of the second speakers 53, and eliminating abnormal vibrations of the display device.

[0120] In some embodiments, the magnetic circuit end 52b of the first speaker 52 may be located in the middle of the air guide channel 54, and the diaphragm ends 53a of the three second speakers 53 may be arranged around the outer periphery of the magnetic circuit end 52b of the first speaker 52. The vibration of the three second speakers 53 can generate airflow within the air guide channel 54. The airflow within the air guide channel 54 can carry the heat generated by the first speaker 52 out through the outlet 541 of the air guide channel 54 and out of the speaker housing 51, thereby improving the heat dissipation efficiency of the speaker assembly 5 and thus increasing the power of the speaker assembly 5.

[0121] like Figure 16 and Figure 18 As shown, in some embodiments, the magnetic circuit ends 53b of the three second loudspeakers 53 are exposed on the back side of the loudspeaker housing 51 and are arranged around the outer periphery of the diaphragm end 52a of the first loudspeaker 52. The exposed magnetic circuit ends 53b of the three second loudspeakers 53 improve heat dissipation performance. The arrangement of the magnetic circuit ends 53b around the outer periphery of the diaphragm end 52a of the first loudspeaker 52 improves the uniformity and efficiency of heat dissipation in the loudspeaker assembly 5.

[0122] like Figure 19 As shown, in some embodiments, a reinforcing rib 514 may be provided between the diaphragm ends 53a of two adjacent second loudspeakers 53. The reinforcing rib 514 may be provided on the front of the loudspeaker housing 51, inside the air duct 54, and between adjacent first receiving grooves 511. One end of the reinforcing rib 514 may be connected to one first receiving groove 511, and the other end of the reinforcing rib 514 may be connected to another first receiving groove 511. The reinforcing rib 514 can improve the structural strength of the area between two adjacent second loudspeakers 53, improve the structural strength of the area between two adjacent first receiving grooves 511, and improve the structural strength of the loudspeaker housing 51 inside the air duct 54, thereby reducing or avoiding abnormal vibration of the loudspeaker housing 51 caused by the vibration of the second loudspeakers 53. Meanwhile, the reinforcing rib 514 can form a uniform force-bearing area between two adjacent second speakers 53, so that the force exerted by the diaphragms 531 of the multiple second speakers 53 on the speaker housing 51 and the reverse force exerted by the diaphragm 521 of the first speaker 52 can overlap as much as possible, thereby reducing the resultant force of diaphragm vibration on the speaker housing 51.

[0123] In some embodiments, three reinforcing ribs 514 may be formed between the diaphragm ends 53a of the three second speakers 53. The three reinforcing ribs 514 may form a triangular structure. The magnetic circuit end 52b of the first speaker 52 may be located inside the triangular structure, which further enhances the structural strength of the speaker housing 51 inside the air guide channel 54 and reduces abnormal vibration of the speaker housing 51.

[0124] like Figure 20 , Figure 21 and Figure 22 As shown, in some embodiments, the speaker assembly 5 includes a speaker housing 51 and a first speaker 52 and a second speaker 53 disposed within the speaker housing 51. The speaker housing 51 is located between the back plate 3 and the rear shell 2. The diaphragm end 52a of the first speaker 52 may be exposed on the back of the speaker housing 51 and arranged towards the rear shell 2, so that the first speaker 52 can emit sound towards the back side of the rear shell 2. The second speaker 53 may be disposed on the outer periphery of the first speaker 52, so that the first speaker 52 and the second speaker 53 are arranged adjacent to each other. The diaphragm end 53a of the second speaker 53 may be exposed on the front of the speaker housing 51, so that the first speaker 52 can emit sound towards the front side of the speaker housing 51. The diaphragm end 53a of the second speaker 53 may be arranged towards the back plate 3, so that the second speaker 53 can emit sound towards the back plate 3.

[0125] In some embodiments, at least two first speakers 52 and at least two second speakers 53 are provided, and the number of first speakers 52 and second speakers 53 can be the same. At least two first speakers 52 and at least two second speakers 53 are arranged alternately in a circumferential direction. By arranging two or more first speakers 52 and two or more second speakers 53 alternately in a circumferential direction, the reaction force of the diaphragm vibration of the two or more first speakers 52 on the speaker housing 51 overlaps with the reaction force of the diaphragm vibration of the two or more second speakers 53 on the speaker housing 51, and the two forces cancel each other out. This reduces the resultant force of the diaphragm vibration on the speaker housing 51, thereby weakening and eliminating the vibration of the speaker assembly 5. This results in a better force cancellation effect, more effectively weakening and eliminating the vibration of the speaker assembly 5, thus preventing the generation of abnormal vibrations at the source, ensuring low-frequency sound effects, and achieving high-fidelity sound from the speaker assembly 5.

[0126] like Figure 21 and Figure 22As shown, in some embodiments, there are two first speakers 52 and two second speakers 53, with the line connecting the two first speakers 52 and the line connecting the two second speakers 53 arranged perpendicularly to each other. This perpendicular arrangement ensures that the reaction force of the vibrations of the two first speakers 52 on the speaker housing 51 is located at the center of the corresponding line, and the reaction force of the vibrations of the two second speakers 53 on the speaker housing 51 is located at the center of another corresponding line. This results in the reaction force of the vibrations of the two second speakers 53 on the speaker housing 51 overlapping with the reaction force of the vibrations of the two first speakers 52 on the speaker housing 51, thus improving the force cancellation effect and more effectively reducing and eliminating the vibration of the speaker assembly 5.

[0127] In some embodiments, the speaker assembly 5 may include at least two first speakers 52 and at least two second speakers 53. The at least two second speakers 53 may be arranged circumferentially spaced on one circumference, and the at least two first speakers 52 may be arranged circumferentially spaced on another concentric circumference. The reaction force of the vibration of the two or more second speakers 53 on the speaker housing 51 is located at the center of this circumference, and the reaction force of the vibration of the two or more first speakers 52 on the speaker housing 51 is located at the center of another circumference. The two centers coincide, so that the range of action of the reaction force of the vibration of the two or more second speakers 53 on the speaker housing 51 coincides with the range of action of the reaction force of the two or more first speakers 52 on the speaker housing 51. This results in a better force cancellation effect, enabling more effective vibration reduction and elimination of the speaker assembly 5.

[0128] For example, the speaker assembly 5 may also include three first speakers 52 and three second speakers 53. The three first speakers 52 may be located on one circumference. The three second speakers 53 may be located on another concentric circle. The three first speakers 52 and the three second speakers 53 may be arranged alternately on different circumferences or on the same circumference. The reaction force of the vibration of the three first speakers 52 on the speaker housing 51 is located at the center of the concentric circle, and the reaction force of the vibration of the three second speakers 53 on the speaker housing 51 is also located at the center of the concentric circle. This causes the reaction force of the vibration of the three second speakers 53 on the speaker housing 51 to cancel out the reaction force of the three first speakers 52 on the speaker housing 51, resulting in a smaller resultant force and a more uniform reduction and elimination of vibration in the speaker assembly 5.

[0129] For example, the speaker assembly 5 may also include four first speakers 52 and four second speakers 53. Alternatively, the speaker assembly 5 may also include five first speakers 52 and five second speakers 53. It should be noted that the number of first speakers 52 and second speakers 53 can be adjusted as needed and is not limited here.

[0130] like Figure 21 and Figure 22 As shown, in some embodiments, a venting channel 54 is recessed on the front of the speaker housing 51, and the two first speakers 52 and two second speakers 53 can be arranged within the contour range of the venting channel 54. The diaphragm ends 53a of the two second speakers 53 can be disposed within the venting channel 54. In this way, the airflow from the diaphragms of the two second speakers 53 can be discharged to the outside of the speaker housing 51 through the venting channel 54, achieving rapid pressure relief, improving the noise reduction and vibration damping of the second speakers 53, and eliminating abnormal vibrations of the display device.

[0131] like Figure 21 As shown, in some embodiments, two first speakers 52 can be arranged within the outline of the air duct 54, and the magnetic circuit ends 52b of the two first speakers 52 can be exposed outside the air duct 54 respectively. The vibration of the second speaker 53 can generate airflow within the air duct 54. The airflow within the air duct 54 can carry the heat generated by the first speakers 52 out through the outlet 541 of the air duct 54 and out of the speaker housing 51, improving the heat dissipation efficiency of the speaker assembly 5 and thus increasing the power of the speaker assembly 5.

[0132] like Figure 21 As shown, in some embodiments, two first speakers 52 are arranged at intervals in the middle region of the air guide channel 54, and two second speakers 53 are respectively disposed at both ends of the air guide channel 54. By distributing the two second speakers 53 at both ends of the air guide channel 54, the second speakers 53 are positioned close to the edge of the speaker housing 51, shortening the flow distance of the airflow generated by the vibration of the second speakers 53 within the air guide channel 54. This allows the airflow to exit through the air guide channel 54 more quickly into the outer region of the speaker housing 51, effectively reducing and eliminating vibration. Furthermore, the arrangement of the two first speakers 52 at intervals in the middle region allows for a more balanced force distribution on the speaker housing 51, resulting in a better force cancellation effect.

[0133] like Figure 21 and Figure 22In some embodiments, the distance between the lines connecting the two first speakers 52 is less than the distance between the lines connecting the two second speakers 53, so that the two second speakers 53 can be closer to the opposite side edges of the speaker housing 51. This shortens the flow distance of the airflow generated by the vibration of the second speakers 53 in the air guide channel 54, and allows it to flow out of the speaker housing 51 to the outer area of ​​the speaker housing 51 more quickly, effectively reducing and eliminating vibration.

[0134] like Figure 23 In some embodiments, a reinforcing rib 514 may be provided on the front of the speaker housing 51, and the reinforcing rib 514 is disposed inside the air guide channel 54. The reinforcing rib 514 may be disposed between two second speakers 53, one end of the reinforcing rib 514 may be connected to a first receiving groove 511, and the other end of the reinforcing rib 514 may be connected to another first receiving groove 511. The reinforcing rib 514 can improve the structural strength of the area between two adjacent second speakers 53, improve the structural strength of the area between two adjacent first receiving grooves 511, improve the structural strength of the speaker housing 51 inside the air guide channel 54, and reduce or avoid abnormal vibration of the speaker housing 51 caused by the vibration of the second speakers 53.

[0135] In some embodiments, a reinforcing rib 514 may be disposed between two first speakers 52. One end of the reinforcing rib 514 may extend to the magnetic circuit end 52b of one first speaker 52, and the other end of the reinforcing rib 514 may extend to the magnetic circuit end 52b of the other first speaker 52. The reinforcing rib 514 can improve the structural strength of the area between two adjacent first speakers 52.

[0136] In some embodiments, two reinforcing ribs 514 may be provided. One reinforcing rib 514 may be provided between the two first speakers 52, and the other reinforcing rib 514 may be provided between the two second speakers 53. The two reinforcing ribs 514 may be connected in a cross structure to improve the structural strength inside the air passage 54 between the two first speakers 52 and the two second speakers 53.

[0137] like Figure 24 and Figure 26As shown, in some embodiments, the speaker assembly 5 includes a speaker housing 51 and a first speaker 52 and a second speaker 53 disposed within the speaker housing 51. The speaker housing 51 is located between the back plate 3 and the rear shell 2. The diaphragm end 52a of the first speaker 52 may be exposed on the back of the speaker housing 51 and arranged towards the rear shell 2, so that the first speaker 52 can emit sound towards the back side of the rear shell 2. The second speaker 53 may be disposed on the outer periphery of the first speaker 52, so that the first speaker 52 and the second speaker 53 are arranged adjacent to each other. The diaphragm end 53a of the second speaker 53 may be exposed on the front of the speaker housing 51, so that the first speaker 52 can emit sound towards the front side of the speaker housing 51. The diaphragm end 53a of the second speaker 53 may be arranged towards the back plate 3, so that the second speaker 53 can emit sound towards the back plate 3.

[0138] In some embodiments, a venting channel 54 is recessed on the front of the speaker housing 51. The diaphragm end 53a of the second speaker 53 may be disposed within the venting channel 54. At least one end of the venting channel 54 extends to the side edge of the speaker housing 51 and forms an outlet 541 communicating with the space outside the outline of the speaker housing 51. One end of the venting channel 54 can communicate with the space outside the outline of the speaker housing 51 through the outlet 541, that is, with other spaces outside the outline inside the display device. Thus, by disposing the diaphragm end 53a of the second speaker 53 within the venting channel 54, abnormal air pressure generated by the vibration of the diaphragm 531 of the second speaker 53 can be discharged into the space outside the outline of the speaker housing 51 through the venting channel 54 and the outlet 541, achieving rapid pressure relief, improving the noise reduction and vibration damping of the second speaker 53, eliminating abnormal vibration of the display device, and more effectively preventing the vibration of the second speaker 53 from affecting the display effect of the display panel 1.

[0139] like Figure 26 and Figure 27 As shown, in some embodiments, a gas barrier layer 55 may be provided on the front of the speaker housing 51. The gas barrier layer 55 is located at the side edge of the air guide channel 54 and sandwiched between the front of the speaker housing 51 and the back plate 3. By providing the gas barrier layer 55 at the side edge of the air guide channel 54, the side edge of the air guide channel 54 can be blocked from gas flow, allowing the airflow generated by the vibration of the diaphragm 531 of the second speaker 53 to flow more strictly along the air guide channel 54, preventing airflow from entering the narrow gap between the speaker housing 51 and the back plate 3. This is more conducive to achieving noise treatment of the airflow, eliminating and reducing the low-frequency vibration and noise of the speaker, avoiding the influence of the narrow gap between the speaker housing 51 and the back plate 3 on the speaker performance, and preventing resonance caused by airflow turbulence.

[0140] In some embodiments, the gas barrier layer 55 is made of a gas-blocking material, for example, the gas barrier layer 55 is made of an impermeable or slightly permeable material. The gas barrier layer 55 can be used to block the passage of gas and prevent the airflow in the air duct 54 from entering the narrow gap between the speaker housing 51 and the back plate 3.

[0141] In some embodiments, the gas barrier layer 55 is elastic, such that the gas barrier layer 55 elastically abuts against the back surface of the back plate 3. By utilizing the elasticity of the gas barrier layer 55 to elastically abut against the back surface of the back plate 3, the sealing performance at the side edge of the air duct 54 can be improved, effectively preventing airflow in the air duct 54 from entering the narrow gap between the speaker housing 51 and the back plate 3.

[0142] In some embodiments, the gas barrier layer 55 may be interference-fitted with the back side of the back plate 3. For example, the thickness of the gas barrier layer 55 may be greater than the thickness of the narrow gap between the speaker housing 51 and the back plate 3, so that the gas barrier layer may be interference-fitted with the back side of the back plate 3, thereby improving the sealing performance at the side edge of the air duct 54 and effectively preventing the airflow in the air duct 54 from entering the narrow gap between the speaker housing 51 and the back plate 3.

[0143] In some embodiments, the gas barrier layer 55 may be made of EVA material. For example, the gas barrier layer 55 may be made of EVA material with a hardness of 30°-50°. EVA material has sufficient hardness and can also have a certain degree of elasticity, which is beneficial to improving the sealing performance at the side edges of the gas guide channel 54.

[0144] like Figure 26 and Figure 27 As shown, in some embodiments, one end of the air guide channel 54 extends to one side edge of the speaker housing 51 and forms a first outlet 541a that communicates with the space outside the outline of the speaker housing 51. The other end of the air guide channel 54 extends to the other side edge of the speaker housing 51 and forms a second outlet 541b that communicates with the space outside the outline of the speaker housing 51. The two ends of the air guide channel 54 can be connected to the opposite two side edges of the speaker housing 51 through the first outlet 541a and the second outlet 541b, respectively, so that the air guide channel 54 can simultaneously communicate with the space outside the outline of the speaker housing 51 through the first outlet 541a and the second outlet 541b.

[0145] In some embodiments, two gas barrier layers 55 may be provided, with the two gas barrier layers 55 respectively disposed on opposite sides of the air guide channel 54. The two gas barrier layers 55, disposed on opposite sides of the air guide channel 54, improve the sealing of both sides of the air guide channel 54, ensuring that the airflow within the air guide channel 54 can only flow out through the outlets 541 at both ends, preventing the airflow within the air guide channel 54 from entering the narrow gap between the speaker housing 51 and the back plate 3. It should be noted that in some other embodiments, the number and position of the gas barrier layers 55 can be adjusted according to the shape and position of the air guide channel 54, and are not limited here.

[0146] like Figure 24 , Figure 26 , Figure 27 and Figure 28 As shown, in some embodiments, the back plate 3 may be provided with a first vent 31 arranged opposite to the diaphragm 531 of the second speaker 53. The first vent 31 can penetrate the back plate 3, connecting the front and rear sides of the back plate 3. In this way, the airflow generated by the vibration of the diaphragm of the second speaker 53 can be released to the front space of the back plate 3 through the first vent 31, avoiding the airflow generated by the vibration of the diaphragm of the second speaker 53 from directly impacting the back plate 3, thereby avoiding localized stress concentration and resonance in the back plate 3.

[0147] like Figure 27 and Figure 28 As shown, in some embodiments, multiple first vent holes 31 are provided, and the multiple first vent holes 31 are arranged at intervals in the projection area of ​​the diaphragm 531 of the second speaker 53 on the back plate 3, so that the multiple first vent holes 31 can be arranged opposite to the diaphragm 531 of the second speaker 53, so that the airflow generated by the vibration of the diaphragm 531 of the second speaker 53 can be released to the front space of the back plate 3 simultaneously through the multiple first vent holes 31, thereby more effectively avoiding the resonance caused by local force concentration on the back plate 3.

[0148] In some embodiments, the diameter of the first vent 31 is greater than or equal to 3 mm, which can make the first vent 31 have a sufficient diameter to ensure the pressure relief efficiency of the airflow generated by the vibration of the diaphragm 531 of the second speaker 53.

[0149] It should be noted that in some other embodiments, the density of the first vent 31 can be increased to increase the permeability of the diaphragm 531 of the second speaker 53 in the projection area on the back plate 3, thereby avoiding local stress concentration and resonance on the back plate 3.

[0150] like Figure 27 and Figure 28As shown, in some embodiments, the back plate 3 may have multiple second vent holes 32 located outside the projection area. These second vent holes 32 are radially distributed around the outer periphery of the projection area, and their diameters are smaller than those of the first vent holes 31. By radiating these second vent holes 32 around the outer periphery of the projection area, they surround the first vent holes 31, assisting in pressure relief and improving pressure relief efficiency. Furthermore, the airflow generated by the vibration of the diaphragm 531 of the second speaker 53 is concentrated within the projection area, gradually weakening in the surrounding area. The smaller diameter of the second vent holes 32 compared to the first vent holes 31 ensures that the impact force on the back plate 3 in the opening area is uniform, preventing concentrated force in localized areas.

[0151] In some embodiments, the diameter of the plurality of second vent holes 32 gradually decreases in the direction away from the center of the projection area. As the airflow generated by the vibration of the diaphragm 531 of the second speaker 53 gradually weakens around the projection area, the diameter of the second vent holes 32 gradually decreases, so that the impact of the force on the back plate 3 in the opening area can achieve a more uniform effect, avoiding the concentration of force in local positions.

[0152] like Figure 26 , Figure 27 and Figure 28 As shown, in some embodiments, a venting channel 54 may be recessed on the front side of the speaker housing 51. The diaphragm end 53a of the second speaker 53 may be disposed within the venting channel 54. At least one end of the venting channel 54 extends to the side edge of the speaker housing 51 and forms an outlet 541 communicating with the space outside the outline of the speaker housing 51. One end of the venting channel 54 can communicate with the space outside the outline of the speaker housing 51 through the outlet 541, that is, with other spaces inside the display device. In this way, by arranging the venting channel 54 on the front side of the speaker housing 51, and cooperating with the diaphragm end 53a of the second speaker 53 being disposed within the venting channel 54, the abnormal air pressure generated by the vibration of the diaphragm 531 of the second speaker 53 can be discharged into the space outside the outline of the speaker housing 51 through the venting channel 54 and the outlet 541, achieving rapid pressure relief, improving the noise reduction and vibration damping of the second speaker 53, and eliminating abnormal vibration of the display device.

[0153] In some embodiments, the first vent 31 may be connected to the air duct 54. When the airflow generated by the vibration of the diaphragm 531 of the second speaker 53 flows along the air duct 54, it can simultaneously release pressure to the front space of the back plate 3 through the first vent 31, thereby improving the pressure release efficiency in the air duct 54 and thus more effectively eliminating abnormal vibrations of the display device.

[0154] like Figure 26 , Figure 27 and Figure 28 As shown, in some embodiments, the speaker assembly 5 includes a first speaker 52 and two second speakers 53. One second speaker 53, the first speaker 52, and the other second speaker 53 are sequentially arranged within the air duct 54, with the two second speakers 53 positioned on opposite sides of the first speaker 52. The diaphragm ends 53a of the two second speakers 53 are exposed outside the air duct 54. The back plate 3 may have two sets of first vent holes 31, one set of which is arranged opposite to the diaphragm 531 of one second speaker 53, and the other set of which is arranged opposite to the diaphragm 531 of the other second speaker 53.

[0155] like Figure 25 , Figure 29 and Figure 30 As shown, in some embodiments, a vent hole 22 may be provided on the rear shell 2 at the position of the outlet 541 corresponding to one end of the air guide channel 54. The vent hole 22 can penetrate the rear shell 2, connecting the front and rear sides of the rear shell 2, thereby connecting the outlet 541 and the external space of the rear shell 2. By providing a vent hole 22 on the rear shell 2 corresponding to the outlet 541, the airflow flowing out of the air guide channel 54 through the outlet 541 can be depressurized to the external space of the rear shell 2 through the vent hole 22, preventing the airflow flowing out of the outlet 541 from directly impacting the rear shell 2, thereby avoiding localized stress concentration and resonance in the rear shell 2.

[0156] like Figure 29 and Figure 30 As shown, in some embodiments, the rear shell 2 has multiple vent holes 22, which are radially arranged around the outer periphery of the outlet 541. The multiple vent holes 22 can be radially distributed outwards from the side edge of the speaker housing 51 where the outlet 541 is located. This radial distribution of multiple vent holes 22 allows the airflow exiting the outlet 541 to simultaneously release pressure into the external space of the rear shell 2, thereby improving the pressure release efficiency of the airflow exiting the outlet 541 and more effectively preventing localized stress concentration and resonance in the rear shell 2.

[0157] In some embodiments, the diameter of the plurality of vent holes 22 gradually decreases in the direction away from the outlet 541. The airflow flowing out of the outlet 541 is concentrated at the outlet 541 and gradually weakens towards the surrounding area. Combined with the gradually decreasing diameter of the plurality of vent holes 22, the impact force on the rear shell 2 in the opening area can achieve a more uniform effect, avoiding localized force concentration.

[0158] In some embodiments, the vent hole 22 near the outlet 541 has a diameter greater than or equal to 3 mm, which can make the vent hole 22 have a sufficient diameter to ensure the pressure relief efficiency of the vent hole 22 for the airflow flowing out of the outlet 541.

[0159] like Figure 29 and Figure 30 As shown, in some embodiments, the two ends of the air duct 54 extend to one side edge of the speaker housing 51, respectively, so that the two ends of the air duct 54 respectively form an outlet 541, namely the first outlet 541a and the second outlet 541b. The two ends of the air duct 54 can be connected to the opposite two side edges of the speaker housing 51 through the first outlet 541a and the second outlet 541b, respectively, so that the air duct 54 can simultaneously connect to the space outside the outline of the speaker housing 51 through the first outlet 541a and the second outlet 541b.

[0160] In some embodiments, the rear shell 2 may be provided with a first vent group 22a corresponding to the first outlet 541a. The first vent group 22a may include a plurality of vent holes 22. The plurality of vent holes 22 of the first vent group 22a may be arranged opposite to the first outlet 541a, and the airflow exiting the first outlet 541a may simultaneously release pressure to the external space of the rear shell 2 through the plurality of vent holes 22, thereby improving the pressure relief efficiency of the airflow exiting the first outlet 541a.

[0161] In some embodiments, the rear shell 2 is provided with a second vent group 22b corresponding to the second outlet 541b. The second vent group 22b includes a plurality of vent holes 22. The plurality of vent holes 22 of the second vent group 22b can be arranged opposite to the second outlet 541b, and the airflow exiting the second outlet 541b is depressurized to the external space of the rear shell 2 through the plurality of vent holes 22, thereby improving the depressurization efficiency of the airflow exiting the second outlet 541b. It should be noted that in some other embodiments, the rear shell 2 may only have a first vent group 22a, or it may only have a second vent group 22b.

[0162] like Figure 24 , Figure 29 and Figure 30As shown, in some embodiments, the distance between the second vent group 22b and the side of the rear shell 2 is less than the distance between the first vent group 22a and the side of the rear shell 2. Therefore, the diameter of the vent hole 22 of the first vent group 22a is larger than the diameter of the vent hole 22 of the second vent group 22b. When the speaker housing 51 is arranged close to one side of the rear shell 2, the distance between the first outlet 541a and the second outlet 541b and the side of the rear shell 2 will be different. Since the mechanical strength is stronger in the area of ​​the rear shell 2 closer to the side and weaker in the area of ​​the rear shell 2 farther from the side, the vibration intensity of the rear shell 2 caused by the airflow from the first outlet 541a and the second outlet 541b is different. By making the diameter of the vent 22 in the first vent group 22a, which is farther from the side, larger than the diameter of the vent 22 in the second vent group 22b, which is closer to the side, the pressure relief capacity of the first vent group 22a is stronger, and the pressure relief capacity of the second vent group 22b is weaker. This makes the rear shell 2 subject to uniform stress in the areas where the first vent group 22a and the second vent group 22b are located, thereby avoiding stress concentration and resonance caused by the layout position of the rear shell 2.

[0163] In some embodiments, the distance between the second vent group 22b and the side of the rear shell 2 is less than the distance between the first vent group 22a and the side of the rear shell 2. Therefore, the number of vent holes 22 in the first vent group 22a is greater than the number of vent holes 22 in the second vent group 22b. By having a greater number of vent holes 22 in the first vent group 22a (far from the side) than in the second vent group 22b (closer to the side), the pressure relief capacity of the first vent group 22a is stronger, and the pressure relief capacity of the second vent group 22b is weaker. This results in a more uniform stress distribution on the rear shell 2 in the areas where the first vent group 22a and the second vent group 22b are located, thereby preventing stress concentration and resonance at the rear shell 2's location.

[0164] like Figure 31 and Figure 32 As shown, in some embodiments, the rear shell 2 is provided with a window area 23, and at least a portion of the back side of the speaker housing 51 is exposed in the window area 23. The diaphragm end 52a of the first speaker 52 is located in the exposed area on the back side of the speaker housing 51, that is, the diaphragm end 52a of the first speaker 52 is located within the window area 23. In this case, it is not necessary to provide a sound outlet 21 on the rear shell 2 that is arranged opposite to the diaphragm 521 of the first speaker 52, and the vibration of the diaphragm 521 of the first speaker 52 can emit sound to the back side area of ​​the rear shell 2. In addition, the speaker housing 51 is exposed through the window area 23, which can reduce the thickness of the internal space occupied by the speaker housing 51, which is beneficial to reducing the thickness of the rear shell 2, thereby reducing the thickness of the display device and facilitating the realization of a thinner and lighter design of the display device.

[0165] like Figure 26 and Figure 32As shown, in some embodiments, the first outlet 541a and the second outlet 541b of the air guide channel 54 can be respectively located at the opposite sides of the window area 23. In this case, the first vent group 22a and the second vent group 22b on the rear shell 2 can be respectively located on opposite sides of the window area 23. For example, the first vent group 22a and the second vent group 22b can be respectively located on the upper and lower sides of the window area 23. By having the first vent group 22a and the second vent group 22b respectively located on opposite sides of the window area 23, the vibration of the rear shell 2 caused by the airflow vented from the first outlet 541a and the second outlet 541b of the air guide channel 54 can be reduced, thereby avoiding the resonance caused by the concentrated force at the layout position of the rear shell 2.

[0166] like Figure 33 , Figure 35 and Figure 36 As shown, in some embodiments, the speaker assembly 5 can be arranged close to the top edge of the display device. The air duct 54 can extend along the height direction of the display device. The first outlet 541a of the air duct 54 can be arranged at the bottom of the air duct 54 and located at the bottom edge of the speaker housing 51. The second outlet 541b of the air duct 54 can be arranged at the top of the air duct 54 and located at the top edge of the speaker housing 51. The window area 23 can be provided on the rear shell 2 and arranged close to the top side wall of the rear shell 2. The electrical components 4 can be arranged at intervals below the speaker assembly 5. In this case, a first vent group 22a can be provided below the bottom edge of the window area 23 on the rear shell 2. The first vent group 22a is arranged opposite to the second outlet 541b to achieve depressurization and vibration reduction of the airflow flowing out of the second outlet 541b. Since the window area 23 is close to the top side wall of the rear shell 2, the second vent group 22b, which is arranged opposite to the second outlet 541b, does not need to be provided above the top side edge of the window area 23 on the rear shell 2. This allows the force on the upper and lower sides of the window area 23 to be concentrated, thus avoiding resonance caused by the concentrated force on the rear shell 2.

[0167] It should be noted that in some other embodiments, a second venting hole group 22b may also be provided on the upper side of the window area 23. In this case, the diameter or number of venting holes 22 in the second venting hole group 22b is smaller than the diameter or number of venting holes 22 in the first venting hole group 22a.

[0168] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A display device, characterized in that, include: Display panel; Back panel, the display panel is disposed on the front side of the back panel; The rear cover is fitted over the back side of the back plate; A speaker assembly is disposed between the back side of the back panel and the rear housing; The speaker assembly includes: Speaker housing, wherein the speaker housing is a closed housing; A first loudspeaker is disposed inside the loudspeaker housing, with the diaphragm end of the first loudspeaker exposed on the back side of the loudspeaker housing and arranged towards the rear shell; the first loudspeaker is capable of emitting sound towards the back side of the rear shell; The second speaker is disposed inside the speaker housing and on the outer periphery of the first speaker; the diaphragm end of the second speaker is exposed on the front of the speaker housing and is arranged towards the back plate; The speaker housing has an air duct at the front, and the diaphragm of the second speaker is located in the air duct; at least one end of the air duct extends to the side edge of the speaker housing and forms an outlet. A gas barrier layer is provided at the front of the speaker housing. The gas barrier layer is located at the side edge of the air guide channel and sandwiched between the front of the speaker housing and the back plate.

2. The display device as claimed in claim 1, characterized in that, The gas barrier layer is made of a material that blocks gases.

3. The display device as claimed in claim 2, characterized in that, The gas barrier layer is elastic, and the gas barrier layer elastically abuts against the back of the back plate.

4. The display device as claimed in claim 2, characterized in that, The gas barrier layer is interference-fitted with the back side of the back plate.

5. The display device as claimed in claim 2, characterized in that, The gas barrier layer is made of EVA material.

6. The display device as claimed in claim 1, characterized in that, One end of the air guide channel extends to one side edge of the speaker housing and forms a first outlet. The other end of the air duct extends to one side edge of the speaker housing and forms a second outlet.

7. The display device as claimed in claim 6, characterized in that, Two gas barrier layers are provided, and the two gas barrier layers are respectively provided on opposite sides of the gas guiding channel.

8. The display device as claimed in claim 1, characterized in that, The first loudspeaker is arranged within the outline of the air guide channel, and the magnetic circuit end of the first loudspeaker is exposed outside the air guide channel.

9. The display device as claimed in claim 8, characterized in that, There are two second speakers, which are symmetrically arranged on opposite sides of the first speaker.

10. The display device as claimed in claim 9, characterized in that, The first speaker is arranged in the middle area of ​​the air guide channel, and the two second speakers are respectively located at both ends of the air guide channel and close to the edge of the speaker housing.

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