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 end of the first speaker is exposed on the back of the speaker housing and faces the rear shell; the magnetic core end of the first speaker is exposed on the front of the speaker housing and faces the back plate; the diaphragm end of the second speaker is exposed on the front of the speaker housing and faces the back plate. A first air guide channel is provided on the front of the speaker housing, at least one end of which extends to the side edge of the speaker housing and communicates with the space outside the outline of the speaker housing. The diaphragm end of the second speaker and the magnetic core end of the first speaker are respectively disposed in the first air guide channel, so that the airflow generated by the vibration of the diaphragm of the second speaker can flow in the first air guide channel and form convection with the magnetic circuit end of the first speaker, thereby improving the heat dissipation efficiency of the first speaker and helping to increase the power 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 limits the thickness of speakers, the strength of the back shell, and the mounting gap of speakers. This further leads to problems such as poor low-frequency performance of speakers and resonance of the overall structure of the display device, causing abnormal vibration and noise. In addition, poor heat dissipation of the speaker magnetic circuit components reduces the power that the speaker can withstand, affecting the sound quality of the speaker. Utility Model Content

[0003] The purpose of this invention is to provide a display device that optimizes the structure of the speaker, reduces and eliminates speaker vibration, and improves the speaker's heat dissipation efficiency.

[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 disposed between the back side of the back plate and the rear shell. The speaker assembly comprises: a speaker housing, the speaker housing being a closed housing; at least one 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; the first speaker... The magnetic core end of the speaker is exposed at the front of the speaker housing and is arranged towards the back plate; at least one 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 at the front of the speaker housing and is arranged towards the back plate; wherein, a first air guide channel is provided at the front of the speaker housing, at least one end of the first air guide channel extends to the side edge of the speaker housing and communicates with the space outside the outline of the speaker housing; the diaphragm end of the second speaker and the magnetic core end of the first speaker are respectively disposed in the first air guide channel.

[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, weakening and eliminating the vibration of the speaker assembly, thus preventing abnormal vibration from the source, ensuring low-frequency sound effects, and achieving high-fidelity sound from the speaker assembly. Furthermore, by arranging a first air guide channel on the front sidewall of the speaker housing, with the diaphragm end of the second speaker and the magnetic circuit end of the first speaker respectively located within the first air guide channel, the airflow generated by the vibration of the second speaker diaphragm can flow within the first air guide channel, forming convection with the magnetic circuit end of the first speaker, improving the heat dissipation efficiency of the magnetic circuit end of the first speaker, thereby helping to increase the power of the speaker assembly and achieve better sound effects.

[0007] In some embodiments of this application, the width of the first air passage gradually increases in the direction from the location of the magnetic circuit end of the first speaker to the location of the diaphragm end of the second speaker.

[0008] The above-mentioned technical solution has the following advantages or beneficial effects: when the airflow generated by the vibration of the diaphragm of the second speaker flows along the first air guide channel to the magnetic circuit end of the first speaker, the airflow velocity can gradually increase as the width of the first air guide channel gradually decreases, thereby improving the heat dissipation efficiency of the magnetic circuit end of the first speaker.

[0009] In some embodiments of this application, the magnetic circuit end of the first loudspeaker is arranged at the middle position of the first air guide channel; the width of the first air guide channel gradually increases in the direction from the location of the magnetic circuit end of the first loudspeaker toward any end of the first air guide channel.

[0010] The above-mentioned technical solution has the following advantages or beneficial effects: by setting the position of the magnetic circuit end of the first speaker towards any end of the first air guide channel, the width of the first air guide channel gradually increases, so that the width of the first air guide channel is the smallest and the airflow velocity is the largest at the position of the magnetic circuit end of the first speaker, thereby improving the heat dissipation effect on the magnetic circuit end of the first speaker and helping to improve the heat dissipation efficiency of the magnetic circuit end of the first speaker.

[0011] In some embodiments of this application, two second speakers are provided, with the two second speakers disposed on opposite sides of the first speaker; the two second speakers are respectively disposed at both ends of the first air guide channel.

[0012] The above-mentioned technical solution has the following advantages or beneficial effects: By distributing two second speakers on opposite sides of the first speaker and arranging them close to the first and second outlets respectively, some of the airflow generated by the diaphragm vibration of the two second speakers can move towards each other along the first air guide channel, achieving mutual cancellation and thus significantly reducing the vibration air pressure between the two second speakers. Simultaneously, some of the air pressure generated by the diaphragm vibration of the two second speakers can be discharged into the space outside the speaker housing outline through the first air guide channel, thereby achieving vibration damping and eliminating abnormal vibrations. Furthermore, by setting a delay between the input electrical signals of the two second speakers, the diaphragms of the two second speakers can reach their maximum values ​​at different times, thereby achieving alternating airflow directions at the magnetic circuit end of the first speaker, improving heat dissipation.

[0013] In some embodiments of this application, a second air guide channel is provided on the back of the speaker housing, at least one end of the second air guide channel extends to the side edge of the speaker housing and communicates with the space outside the outline of the speaker housing; the diaphragm end of the first speaker and the magnetic circuit end of the second speaker are respectively disposed in the second air guide channel.

[0014] The above-mentioned technical solution has the following advantages or beneficial effects: By placing the diaphragm end of the first speaker within the second air guide channel, the airflow generated by the vibration of the first speaker diaphragm can flow within the second air guide channel. By placing the magnetic circuit end of the second speaker within the second air guide channel, the magnetic circuit end of the second speaker can be exposed within the second air guide channel. When the airflow generated by the vibration of the first speaker diaphragm flows within the second air guide channel, the airflow within the second air guide channel can carry the heat generated by the magnetic circuit end of the second speaker, and flow out of the speaker housing through the first or second air guide port, improving the heat dissipation efficiency of the magnetic circuit end of the second speaker, thereby helping to increase the power of the speaker assembly and achieve better sound effects.

[0015] In some embodiments of this application, the width of the second air passage gradually decreases in the direction from the location of the diaphragm end of the first speaker toward the location of the magnetic circuit end of the second speaker.

[0016] The above-mentioned technical solution has the following advantages or beneficial effects: when the airflow generated by the vibration of the diaphragm of the first speaker flows along the second air guide channel to the magnetic circuit end of the second speaker, the airflow velocity can gradually increase as the width of the second air guide channel gradually decreases, thereby improving the heat dissipation efficiency of the magnetic circuit end of the second speaker.

[0017] In some embodiments of this application, the diaphragm end of the first loudspeaker is arranged in the middle of the second air passage; two second loudspeakers are provided, and the magnetic circuit ends of the two second loudspeakers are respectively arranged on opposite sides of the magnetic circuit end of the first loudspeaker.

[0018] The above-mentioned technical solution has the following advantages or beneficial effects: by distributing the magnetic circuit ends of the two second speakers on opposite sides of the magnetic circuit end of the first speaker, the middle position of the second air guide channel becomes wider, and the position of the magnetic circuit ends of the second speakers gradually becomes smaller towards both sides. This makes the width of the second air guide channel at the position of the magnetic circuit end of the second speaker the smallest and the airflow velocity the largest, thereby improving the heat dissipation effect on the magnetic circuit end of the second speaker and helping to improve the heat dissipation efficiency of the magnetic circuit end of the second speaker.

[0019] In some embodiments of this application, the magnetic circuit ends of the two second loudspeakers are respectively located at both ends of the second air guide channel.

[0020] The above-mentioned technical solution has the following advantages or beneficial effects: by arranging two second speakers close to the two ends of the second air channel, the magnetic circuit ends of the two second speakers are close to the opposite sides of the speaker housing, reducing the distance between the magnetic circuit ends of the second speakers and the outside of the speaker housing, thereby improving the heat dissipation efficiency of the magnetic circuit ends of the second speakers.

[0021] In some embodiments of this application, the first air guide channel and the second air guide channel extend along the height direction of the display device; the top sidewall and / or bottom sidewall of the rear shell are provided with air outlets, and the first air guide channel and the second air guide channel are respectively connected to the air outlets.

[0022] The above-mentioned technical solution has the following advantages or beneficial effects: by connecting the first air guide channel and the second air guide channel to the air outlet, the heat discharged by the first air guide channel and the second air guide channel can also be discharged to the outside of the display device through the air outlet, thereby improving the heat dissipation effect of the speaker assembly.

[0023] In some embodiments of this application, the display device includes a power board, the electrical components are spaced apart on the lower side of the speaker housing, and the lower ports of the first air guide channel and / or the second air guide channel are arranged toward the electrical components.

[0024] The above-mentioned technical solution has the following advantages or beneficial effects: the lower port of the first air guide channel and / or the second air guide channel is arranged towards the electrical device, and the airflow flowing out of the first air guide channel and / or the second air guide channel can also dissipate heat from the electrical device, thereby improving the heat dissipation effect of the electrical device. Attached Figure Description

[0025] Figure 1This is a structural diagram of a display device according to some embodiments of this application.

[0026] Figure 2 This is an exploded structural diagram of a display device according to some embodiments of this application.

[0027] Figure 3 yes Figure 2 Another decomposed structure diagram.

[0028] Figure 4 yes Figure 2 A structural diagram of the loudspeaker assembly.

[0029] Figure 5 yes Figure 4 A structural diagram from another perspective.

[0030] Figure 6 yes Figure 4 A front view of the speaker assembly.

[0031] Figure 7 yes Figure 4 Rear view of the speaker assembly.

[0032] Figure 8 yes Figure 7 Partial sectional view along the AA direction.

[0033] Figure 9 yes Figure 8 Structural diagrams of the speaker assembly in some other embodiments.

[0034] Figure 10 yes Figure 3 A partial cross-sectional view of the display device.

[0035] Figure 11 This is another exploded structural diagram of a display device according to some embodiments of this application.

[0036] Figure 12 yes Figure 11 A structural diagram of the loudspeaker assembly.

[0037] Figure 13 This is another exploded structural diagram of a display device according to some embodiments of this application.

[0038] Figure 14 yes Figure 13 A structural diagram of a loudspeaker assembly.

[0039] Figure 15 This is another exploded structural diagram of a display device according to some embodiments of this application.

[0040] Figure 16 yes Figure 15 A structural diagram of a loudspeaker assembly. Detailed Implementation

[0041] Typical embodiments embodying the features and advantages of this application will be described in detail in the following description. It should be understood that this application can have various variations in different embodiments, all of which do not depart from the scope of this application, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this application.

[0042] 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.

[0043] The current trend towards ultra-thin designs in televisions and other display devices has limited the thickness of speakers, the strength of the back shell, and the installation gap of speakers. This further leads to problems such as poor low-frequency performance of speakers and resonance of the overall structure of the display device, causing abnormal vibration and noise. In addition, poor heat dissipation of the speaker magnetic circuit components reduces the power that the speaker can withstand, affecting the sound quality of the speaker.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] like Figure 1 As 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.

[0050] 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.

[0051] 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.

[0052] In some embodiments, the display device may further include an electrical component 4, which may be a motherboard, an electrical component, a control board, or other heat-generating components. 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.

[0053] 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.

[0054] like Figure 2 , 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 may be disposed on the back side of the back panel 3 or on the front side of the rear housing 2. The speaker assembly 5 can emit sound to the outside of the rear housing 2.

[0055] like Figure 2 and Figure 3 As 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.

[0056] It should be noted that the number of speaker components 5 can be adjusted as needed, and no limit is imposed here.

[0057] like Figure 3 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] like Figure 6 and Figure 7 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.

[0062] like Figure 3 , Figure 6 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.

[0063] 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.

[0064] like Figure 2 , Figure 6 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 first speaker 52 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] like Figure 4 and Figure 8As shown, in some embodiments, a first receiving groove 511 is provided on 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. By having the diaphragm 531 of the second speaker 53 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. The first receiving groove 511 being recessed in the front of the speaker housing 51, combined with the diaphragm 531 of the second speaker 53 being disposed within the first receiving groove 511, prevents the diaphragm 531 of the second speaker 53 from protruding from the front of the speaker housing 51, which helps to increase the distance between the diaphragm and the back plate 3, and provides vibration space for diaphragm vibration.

[0070] like Figure 6 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.

[0071] like Figure 5 and Figure 8 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. By having the second receiving groove 512 recessed in the back side of the speaker housing 51, and the diaphragm 521 of the first speaker 52 disposed in the second receiving groove 512, the diaphragm 521 of the first speaker 52 does not protrude from the back side of the speaker housing 51, which is beneficial to increasing the distance between the diaphragm 521 of the first speaker 52 and the rear shell 2, and is beneficial to providing vibration space for diaphragm vibration.

[0072] like Figure 7 and Figure 8 As shown, in some embodiments, the diaphragm 521 of the first speaker 52 may have a circular structure. The first speaker 52 includes a first support 522. The peripheral edge of the diaphragm 521 of the first speaker 52 can be adhered to the first support 522, and the peripheral edge of the first support 522 can be fixed to the bottom wall of the second receiving groove 512. In this way, the diaphragm 521 of the first speaker 52 can be fixed to the bottom wall of the second receiving groove 512 by the first support 522, so that the diaphragm 521 of the first speaker 52 is fixed in the second receiving groove 512.

[0073] like Figure 6 and Figure 8 As shown, in some embodiments, the magnetic circuit end 52b of the first speaker 52 can be exposed at the front of the speaker housing 51, with the magnetic circuit end of the first speaker 52 facing the back plate 3. Exposing the magnetic circuit end 52b of the first speaker 52 at the front of the speaker housing 51 facilitates heat dissipation. The airflow generated by the vibration of the diaphragm 531 of the second speaker 53 can form convection with the magnetic circuit end 52b of the first speaker 52 along the front of the speaker housing 51, thereby improving the heat dissipation efficiency of the first speaker 52. Since the power handling capacity of a speaker is mainly limited by the temperature resistance of the magnetic circuit components, increasing the heat dissipation efficiency of the magnetic circuit end 52b of the first speaker 52 can help improve the power handling capacity of the speaker assembly 5, thereby achieving better sound effects.

[0074] like Figure 6 and Figure 8 As shown, 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. Exposing the magnetic circuit end 53b of the second speaker 53 on the back side of the speaker housing 51 facilitates heat dissipation. The airflow generated by the vibration of the diaphragm 521 of the first speaker 52 can form convection with the magnetic circuit end 53b of the second speaker 53 along the back side of the speaker housing 51, improving the heat dissipation efficiency of the second speaker 53. Increasing the heat dissipation efficiency of the magnetic circuit end 53b of the second speaker 53 also helps to improve the power handling capacity of the speaker assembly 5, thereby achieving better sound effects.

[0075] like Figure 4 , Figure 5 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 first housing member 5101 is located above the second housing member 5102, and the peripheral edges of the first housing member 5101 and the second housing member 5102 are joined together to form a closed housing structure with a closed inner cavity.

[0076] 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.

[0077] 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 stability of the speaker housing 51. This allows 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 achieving vibration reduction and elimination of the speaker assembly 5.

[0078] like Figure 10 As shown, in some embodiments, a first gap 501 may be provided between the front of the speaker housing 51 and the back of the back plate 3. The space outside the diaphragm 531 of the second speaker 53 can communicate with the first gap 501, which is beneficial to expanding the vibration space of the diaphragm, allowing the airflow generated by the diaphragm of the second speaker 53 to be discharged outside the outline of the speaker housing 51 through the first gap 501 and flow to other areas on the back side of the back plate 3. In addition, the heat generated by the magnetic circuit end 52b of the first speaker 52 can be discharged outside the outline of the speaker housing 51 through the first gap 501 and dissipated to other areas inside the display device.

[0079] In some embodiments, the first gap 501 communicates with the first receiving groove 511. The airflow from the vibration of 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 through the first gap 501 to the space outside the contour of the speaker housing 51, and flow to other areas on the back side of the back plate 3.

[0080] like Figure 10 As shown, in some embodiments, a second gap 502 may be provided between the back surface of the speaker housing 51 and the rear shell 2. The space outside the diaphragm of the first speaker 52 can communicate with the second gap 502, which helps to expand the vibration space of the diaphragm. This allows the airflow generated by the diaphragm of the first speaker 52 to partially exit the outer contour of the speaker housing 51 through the second gap 502 and flow to other areas between the rear shell 2 and the back plate 3. In addition, the heat generated at the magnetic circuit end of the second speaker 53 can be discharged outside the outer contour of the speaker housing 51 through the second gap 502 and dissipated to other areas inside the display device.

[0081] In some embodiments, the second gap 502 communicates with the second receiving groove 512. The vibrating airflow generated by the diaphragm of the first speaker 52 can enter the second gap 502 through the slot of the second receiving groove 512, and then be transmitted through the second gap 502 to the space outside the contour of the speaker housing 51, and flow to other areas on the back side of the back plate 3.

[0082] like Figure 6 and Figure 10 As shown, in some embodiments, a first air passage 54 may be recessed on the front sidewall of the speaker housing 51. The first air passage 54 may communicate with the first gap 501. The diaphragm end 53a of the second speaker 53 may be disposed within the first air passage 54. A first receiving groove 511 may be disposed within the first air passage 54, and the first receiving groove 511 may be recessed in the inner wall of the first air passage 54, thereby increasing the distance between the diaphragm 531 of the second speaker 53 and the back plate 3, which is beneficial to reducing the thickness of the first gap 501 between the back of the speaker housing 51 and the back of the back plate 3.

[0083] The two ends of the first air guide channel 54 extend to the side edges of the speaker housing 51, respectively, and form a first outlet 541 and a second outlet 542 that communicate with the space outside the outline of the speaker housing 51. This allows one end of the first air guide channel 54 to communicate with the space outside the outline of the speaker housing 51 through the first outlet 541, i.e., to communicate with other spaces inside the display device. The other end of the first air guide channel 54 can communicate with the space outside the outline of the speaker housing 51 through the second outlet 542, i.e., to communicate with other spaces inside the display device.

[0084] The first air passage 54 is connected to the first gap 501. With the diaphragm end 53a of the second speaker 53 located within the first air passage 54, the airflow generated by the vibration of the diaphragm 531 of the second speaker 53 can flow within the first air passage 54. This airflow is then discharged through the first outlet 541 or the second outlet into the space outside the outline of the speaker housing 51, and through the first gap 501 into the external space of the speaker housing 51, achieving rapid pressure relief. This improves the noise reduction and vibration damping of the second speaker 53, eliminates abnormal vibrations of the display device, and more effectively prevents the vibration of the second speaker 53 from affecting the display effect of the display panel 1. Furthermore, the first air passage 54 provides vibration space for the diaphragm 531 of the second speaker 53, which helps to reduce the size of the first gap 501. This avoids the impact of an excessively small first gap 501 on the speaker assembly 5, improves the speaker's sensitivity, and allows for a smaller or even zero gap between the front of the speaker housing 51 and the back of the back panel 3, further facilitating the ultra-thin design requirements of the display device.

[0085] In some embodiments, the depth of the first air channel 54 is greater than 3 mm. By having the depth of the first air channel 54 greater than 3 mm, the distance between the diaphragm of the second speaker 53 and the back plate 3 is increased, which helps to reduce the thickness of the first gap 501 between the speaker housing 51 and the back plate 3, so that the first gap 501 can form an ultra-thin gap, which is beneficial to achieving the ultra-thin design requirements of the display device.

[0086] like Figure 6 and Figure 10 As shown, in some embodiments, the first speaker 52 can be arranged within the outline of the first air passage 54, and the magnetic circuit end 52b of the first speaker 52 is disposed within the first air passage 54, so that the magnetic circuit end 52b of the first speaker 52 can be exposed within the first air passage 54. When the airflow generated by the vibration of the diaphragm 531 of the second speaker 53 flows within the first air passage 54, the airflow within the first air passage 54 can carry the heat generated by the magnetic circuit end 52b of the first speaker 52 and flow out through the first outlet 541 or the second outlet 542 into the space outside the outline of the speaker housing 51, thereby improving the heat dissipation efficiency of the magnetic circuit end 52b of the first speaker 52, which in turn helps to improve the power handling capacity of the speaker assembly 5 and achieve better sound effects.

[0087] It should be noted that in some other embodiments, the first air channel 54 may extend to the side edge of the speaker housing 51 at only one end, and the first air channel 54 may communicate with the space outside the outline of the speaker housing 51 at only one end, that is, the first air channel 54 may communicate with other spaces inside the display device at only one end.

[0088] like Figure 4 and Figure 6 As shown, in some embodiments, the width of the first air guide channel 54 gradually increases in the direction from the magnetic circuit end 52b of the first speaker 52 towards the diaphragm end 53a of the second speaker 53. Thus, when the airflow generated by the vibration of the diaphragm 531 of the second speaker 53 flows along the first air guide channel 54 towards the magnetic circuit end 52b of the first speaker 52, the gradually decreasing width of the first air guide channel 54 allows the airflow velocity to gradually increase, thereby improving the heat dissipation efficiency of the magnetic circuit end 52b of the first speaker 52.

[0089] like Figure 4 and Figure 6As shown, in some embodiments, the magnetic circuit end 52b of the first speaker 52 can be arranged at the middle position of the first air guide channel 54. The width of the first air guide channel 54 gradually increases in the direction from the location of the magnetic circuit end 52b of the first speaker 52 towards any end of the first air guide channel 54. This results in the first air guide channel 54 having the smallest width and the largest airflow velocity at the location of the magnetic circuit end 52b of the first speaker 52, thereby improving the heat dissipation effect on the magnetic circuit end 52b of the first speaker 52 and enhancing the heat dissipation efficiency of the magnetic circuit end 52b of the first speaker 52.

[0090] In some embodiments, at the position of the magnetic circuit end 52b of the first speaker 52, in the direction toward the first outlet 541, the width of the first air guide channel 54 gradually increases, so that the first air guide channel 54 forms a streamlined gradient structure, which is more conducive to the noise treatment of airflow and avoids abnormal vibration caused by airflow turbulence.

[0091] In some embodiments, at the position of the magnetic circuit end 52b of the first speaker 52, in the direction toward the second outlet 542, the width of the first air guide channel 54 gradually increases, so that the first air guide channel 54 forms a streamlined gradient structure, which is more conducive to noise processing of airflow and avoids abnormal vibration caused by airflow turbulence.

[0092] like Figure 4 and Figure 6 As shown, in some embodiments, the loudspeaker assembly 5 may include two second loudspeakers 53. One second loudspeaker 53, a first loudspeaker 52, and another second loudspeaker 53 are sequentially arranged within the first air passage 54, with the two second loudspeakers 53 positioned on opposite sides of the first loudspeaker 52. The magnetic circuit end 52b of the first loudspeaker 52 is located in the middle of the first air passage 54, and the diaphragm ends 53a of the two second loudspeakers 53 are positioned on opposite sides of the magnetic circuit end 52b of the first loudspeaker 52, such that the diaphragm ends 53a of the two second loudspeakers 53 are respectively located at both ends of the first air passage 54. Specifically, the diaphragm end of one second loudspeaker 53 may be arranged near the first outlet 541, and the diaphragm end 53a of the other second loudspeaker 53 may be arranged near the second outlet 542.

[0093] The diaphragm ends 53a of the two second loudspeakers 53 are respectively located on opposite sides of the magnetic circuit end 52b of the first loudspeaker 52, and are arranged close to the first outlet 541 and the second outlet 542. This allows some of the airflow generated by the vibration of the diaphragm 531 of the two second loudspeakers 53 to move towards each other along the first air guide channel 54, achieving mutual cancellation and thus significantly reducing the vibration air pressure between the two second loudspeakers 53. At the same time, some of the air pressure generated by the vibration of the diaphragm 531 of the two second loudspeakers 53 can be discharged into the outer space of the loudspeaker housing 51 through the first outlet 541 and the second outlet 542, thereby achieving vibration damping and eliminating abnormal vibration.

[0094] Furthermore, by setting a delay between the input electrical signals of the two second speakers 53, the diaphragms of the two second speakers 53 can reach their maximum values ​​at different times, thereby achieving alternating airflow directions at the magnetic circuit end 52b of the first speaker 52, improving heat dissipation, and thus increasing the power handling capacity of the speaker assembly 5, achieving better sound effects.

[0095] like Figure 6 and Figure 10 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 disposed 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 vibration of the diaphragm 531 of the two second speakers 53 on the speaker housing 51 overlaps with the reaction force of the vibration of the diaphragm 521 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 placement of the two second speakers 53 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. This allows the airflow from the two second speakers 53 to exit the speaker housing 51 more quickly through the first outlet 541 and the second outlet 542, achieving rapid pressure relief and thus damping and eliminating abnormal vibration.

[0096] 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.

[0097] like Figure 6 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 better force cancellation between the two second speakers 53 and the first speaker 52, thus improving the vibration cancellation effect.

[0098] like Figure 4 and Figure 6 As shown, in some embodiments, the widths of the first outlet 541 at one end of the first air guide channel 54 and the second outlet 542 at the other end of the first air guide channel 54 are the same, and are respectively greater than the width of the first air guide channel 54 at the magnetic circuit end 52b of the first speaker 52. The heat generated by the first speaker 52 can flow to the first outlet 541 and dissipate heat through the first outlet 541 to the space outside the outline of the speaker housing 51. The heat generated by the first speaker 52 can also flow to the second outlet 542 and dissipate heat through the second outlet 542 to the space outside the outline of the speaker housing 51.

[0099] In some embodiments, the first air passage 54 is 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 areas of the first air passage 54 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.

[0100] like Figure 11 and Figure 12 As shown, in some embodiments, the two parts of the first 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 541 can be greater than or less than the width of the second outlet 542.

[0101] For example, the speaker assembly 5 is arranged closer to one side edge of the display device, the first outlet 541 is closer to the corresponding side edge of the rear shell 2, and the second outlet 542 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 542 is greater than that of the first outlet 541, which makes the width of the first air passage 54 from the first speaker 52 to the second outlet 542 wider. The vibration of the second speaker 53 at the first air passage 54 corresponding to the second outlet 542 is weaker, while the vibration at the first air passage 54 corresponding to the first outlet 541 is stronger, which makes the vibration generated by the rear shell 2 more balanced.

[0102] For example, the speaker assembly 5 is arranged closer to one side edge of the display device, and the first outlet 541 is closer to the corresponding side edge of the display device. In this case, the distance between the second outlet 542 and the side edge of the display device is greater than the distance between the first outlet 541 and the side edge of the display device, and the space outside the speaker housing 51 outside the second outlet 542 is greater than the space outside the first outlet 541. This makes the width of the second outlet 542 greater than the first outlet 541, allowing more heat generated by the first speaker 52 to be dissipated to the outer space of the speaker housing 51 through the second outlet 542, thereby improving heat dissipation efficiency.

[0103] like Figure 5 and Figure 10 As shown, in some embodiments, the magnetic circuit ends 53b of the two second loudspeakers 53 are exposed on the back of the loudspeaker housing 51 and are respectively disposed on opposite sides of the diaphragm end 52a of the first loudspeaker 52. In this way, the vibrating airflow generated by the diaphragm end 52a of the first loudspeaker 52 can be blown along the back of the loudspeaker housing 51 towards the magnetic circuit ends 53b of the two second loudspeakers 53, thereby dissipating heat from the magnetic circuit ends 53b of the two second loudspeakers 53 and improving heat dissipation efficiency.

[0104] like Figure 5 , Figure 7 and Figure 10 As shown, in some embodiments, a second air passage 55 may be recessed on the back side of the speaker housing 51. The second air passage 55 may communicate with the second gap 502. The diaphragm end 52a of the first speaker 52 may be disposed within the second air passage 55. A second receiving groove 512 may be disposed within the second air passage 55, and the second receiving groove 512 may be recessed in the inner wall of the second air passage 55, thereby increasing the distance between the diaphragm 521 of the first speaker 52 and the rear shell 2, which is beneficial to reducing the second gap 502 between the back sides of the speaker housing 51 and the rear shell 2.

[0105] The two ends of the second air guide channel 55 extend to the side edge of the speaker housing 51, and respectively form a first air guide port 551 and a second air guide port 552 that communicate with the outer space of the speaker housing 51. One end of the second air guide channel 55 can communicate with the outer space of the speaker housing 51 through the first air guide port 551, that is, with other spaces inside the display device. The other end of the second air guide channel 55 can communicate with the outer space of the speaker housing 51 through the second air guide port 552, that is, with other spaces inside the display device.

[0106] The second air passage 55 communicates with the second gap 502, and the diaphragm end 52a of the first speaker 52 is located within the second air passage 55. This allows the airflow generated by the vibration of the diaphragm 521 of the first speaker 52 to flow within the second air passage 55, and to be discharged into the outer contour space of the speaker housing 51 through the first air port 551 or the second air port 552, and also through the second gap 502. Furthermore, the second air passage 55 provides vibration space for the diaphragm 521 of the first speaker 52, which helps to reduce the second gap 502 and facilitates the ultra-thin design requirements of the display device.

[0107] like Figure 7 and Figure 10 As shown, in some embodiments, the second speaker 53 can be arranged within the outline of the second air passage 55, and the magnetic circuit end of the second speaker 53 is disposed within the second air passage 55, allowing the magnetic circuit end of the second speaker 53 to be exposed within the second air passage 55. When the airflow generated by the vibration of the diaphragm 521 of the first speaker 52 flows within the second air passage 55, the airflow within the second air passage 55 can carry the heat generated by the magnetic circuit end 53b of the second speaker 53, and flow out through the first air vent 551 or the second air vent 552 into the space outside the outline of the speaker housing 51, thereby improving the heat dissipation efficiency of the magnetic circuit end 53b of the second speaker 53, which in turn helps to improve the power handling capacity of the speaker assembly 5 and achieve better sound effects.

[0108] It should be noted that in some other embodiments, the second air channel 55 may extend to the side edge of the speaker housing 51 at only one end, and the second air channel 55 may communicate with the space outside the outline of the speaker housing 51 at only one end, that is, the second air channel 55 may communicate with other spaces inside the display device at only one end.

[0109] like Figure 5 and Figure 7As shown, in some embodiments, the width of the second air guide channel 55 gradually decreases in the direction from the diaphragm end 52a of the first speaker 52 towards the magnetic circuit end 53b of the second speaker 53. Thus, when the airflow generated by the vibration of the diaphragm 521 of the first speaker 52 flows along the second air guide channel 55 towards the magnetic circuit end 53b of the second speaker 53, the gradually decreasing width of the second air guide channel 55 allows the airflow velocity to gradually increase, thereby improving the heat dissipation efficiency of the magnetic circuit end 53b of the second speaker 53.

[0110] In some embodiments, the diaphragm end 52a of the first speaker 52 can be arranged in the middle of the second air passage 55. Two second speakers 53 are provided, with their magnetic circuit ends 53b respectively located on opposite sides of the magnetic circuit end 53b of the first speaker 52. This allows the middle section of the second air passage 55 to be wider, while the magnetic circuit ends 53b of the second speakers 53 gradually decrease in size towards both sides. This results in the second air passage 55 having the smallest width and the largest airflow velocity at the magnetic circuit ends 53b of the second speakers 53, thus improving the heat dissipation effect on the magnetic circuit ends 53b of the second speakers 53 and enhancing the heat dissipation efficiency of the magnetic circuit ends 53b of the second speakers 53.

[0111] In some embodiments, two second speakers 53 are respectively disposed at both ends of the second air duct 55. The magnetic circuit end 53b of one second speaker 53 is arranged near the first air duct 551, and the magnetic circuit end 53b of the other second speaker 53 is arranged near the second air duct 552. In this way, the magnetic circuit ends 53b of the two second speakers 53 are close to the opposite side edges of the speaker housing 51, reducing the distance between the magnetic circuit ends 53b of the second speakers 53 and the outer edge of the speaker housing 51, thereby improving the heat dissipation efficiency of the magnetic circuit ends 53b of the second speakers 53.

[0112] like Figure 2 , Figure 3 and Figure 6 As shown, in some embodiments, the first air duct 54 can extend along the height direction of the display device. An air vent 22 can be provided on the top sidewall of the rear housing 2. Multiple air vents 22 can be provided, and these multiple air vents 22 are arranged sequentially at intervals along the length direction of the top sidewall of the rear housing 2. The top port of the first air duct 54 can face the air vent 22, so that the first air duct 54 communicates with the air vent 22, thereby allowing the heat discharged from the first air duct 54 to be discharged to the outside of the display device through the air vent 22, thus improving the heat dissipation effect of the speaker assembly 5.

[0113] In some embodiments, vent holes 22 may also be provided on the bottom sidewall of the rear housing 2. Multiple vent holes 22 may be provided, and these vent holes 22 may be arranged sequentially at intervals along the length of the bottom sidewall of the rear housing 2. The bottom port of the first air guide channel 54 may be arranged facing the vent hole 22, so that the first air guide channel 54 communicates with the vent hole 22, thereby allowing the heat discharged from the first air guide channel 54 to be discharged to the outside of the display device through the vent hole 22, thus improving the heat dissipation effect of the speaker assembly 5.

[0114] like Figure 2 , Figure 3 and Figure 7 As shown, in some embodiments, the second air duct 55 can extend along the height direction of the display device. The top port of the second air duct 55 can be arranged facing the air outlet 22, so that the second air duct 55 is connected to the air outlet 22, and the heat discharged by the second air duct 55 can also be discharged to the outside of the display device through the air outlet 22, thereby improving the heat dissipation effect of the speaker assembly 5.

[0115] In some embodiments, the bottom port of the second air channel 55 may be arranged toward the air outlet 22, so that the second air channel 55 is connected to the air outlet 22, thereby allowing the heat discharged by the second air channel 55 to be discharged to the outside of the display device through the air outlet 22, thereby improving the heat dissipation effect of the speaker assembly 5.

[0116] It should be noted that in some embodiments, the vent 22 may be arranged only on the top sidewall or the bottom sidewall of the rear shell 2.

[0117] In some embodiments, the display device may include electrical components 4, which are spaced apart on one side of the speaker housing 51, for example, spaced apart below the speaker housing 51. The lower ports of the first air passage 54 and / or the second air passage 55 may be arranged toward the electrical components 4. In this way, the airflow from the first air passage 54 and / or the second air passage 55 can also dissipate heat from the electrical components 4, improving the heat dissipation effect on the electrical components 4.

[0118] like Figure 13 and Figure 14 As shown, in some embodiments, the speaker assembly 5 includes a first speaker 52 and at least three second speakers 53. The at least three second speakers 53 may be arranged circumferentially spaced on the same circumference (as shown in the attached diagram). Figure 14(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.

[0119] In some embodiments, 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 14 As shown by the dashed line, the reaction force of the vibrations of the three second speakers 53 on the speaker housing 51 is located at the center of the equilateral triangle. This, combined with the first speaker 52 being located at the center of the same equilateral triangle, ensures that the reaction force of the vibrations 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 results in better force cancellation and more effectively reduces and eliminates the vibration of the speaker assembly 5. It should be noted that in some other embodiments, the speaker assembly 5 may include four or five second speakers 53. The number of second speakers 53 arranged around the first speaker 52 can be adjusted as needed and is not limited here.

[0120] 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.

[0121] In some embodiments, the magnetic circuit end 52b of the first speaker 52 is located in the middle of the first air guide channel 54, and the diaphragm ends 53a of the three second speakers 53 are respectively located inside the first air guide channel 54. The airflow generated by the vibration of the diaphragm 531 of the three second speakers 53 can flow in the first air guide channel 54 respectively, dissipating heat from the magnetic circuit end 52b of the first speaker 52. In addition, by setting a delay between the three second speakers 53 through an input electrical signal, the diaphragms of the three second speakers 53 can reach their maximum values ​​at different times, thereby achieving alternating airflow directions at the magnetic circuit end 52b of the first speaker 52, improving the heat dissipation effect, thereby increasing the power handling capacity of the speaker assembly 5, and achieving better sound effects.

[0122] like Figure 15 and Figure 16 As shown, in some embodiments, the speaker assembly 5 includes two first speakers 52 and two second speakers 53. The two first speakers 52 are located in the middle of the first air passage 54. The two second speakers 53 can be located at both ends of the two first air passages 54. The airflow generated by the vibration of the diaphragm 531 of the two second speakers 53 can flow within the first air passages 54 respectively, dissipating heat from the magnetic circuit ends 52b of the two first speakers 52. Furthermore, by setting a delay between the two second speakers 53 through an input electrical signal, the diaphragms of the two second speakers 53 can reach their maximum values ​​at different times, thereby achieving alternating airflow directions at the magnetic circuit ends 52b of the two first speakers 52, improving the heat dissipation effect, and thus increasing the power handling capacity of the speaker assembly 5, achieving better sound effects.

[0123] like Figure 16 As shown, in some embodiments, the wire connecting the two first speakers 52 is arranged perpendicularly to the wire connecting the two second speakers 53. This perpendicular arrangement of the wire connecting the two first speakers 52 and the wire connecting the two second speakers 53 (as shown in the attached diagram) Figure 16 As shown by the dashed line, the reaction force of the vibration of the two first speakers 52 on the speaker housing 51 can be located at the center of the corresponding connecting line, and the reaction force of the vibration of the two second speakers 53 on the speaker housing 51 can be located at the center of another corresponding connecting line. The reaction force of the vibration of the two second speakers 53 on the speaker housing 51 coincides with the reaction force of the two first speakers 52 on the speaker housing 51, thereby making the force cancellation effect better and more effectively reducing and eliminating the vibration of the speaker assembly 5.

[0124] Although this application 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 this application can be embodied in many forms without departing from the spirit or substance of the application, 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; At least one first loudspeaker is disposed within the loudspeaker housing, the diaphragm end of the first loudspeaker is exposed on the back of the loudspeaker housing and is arranged toward the rear shell; the first loudspeaker is capable of emitting sound toward the back side of the rear shell; the magnetic circuit end of the first loudspeaker is exposed on the front of the loudspeaker housing and is arranged toward the back plate. At least one second loudspeaker is disposed within the loudspeaker housing and on the outer periphery of the first loudspeaker; the diaphragm end of the second loudspeaker is exposed at the front of the loudspeaker housing and is arranged toward the back plate; The speaker housing has a first air guide channel at the front, and at least one end of the first air guide channel extends to the side edge of the speaker housing and communicates with the space outside the outline of the speaker housing. The diaphragm end of the second speaker and the magnetic circuit end of the first speaker are respectively located in the first air guide channel.

2. The display device as claimed in claim 1, characterized in that, The width of the first air passage gradually increases in the direction from the magnetic circuit end of the first speaker toward the diaphragm end of the second speaker.

3. The display device as claimed in claim 1, characterized in that, The magnetic circuit end of the first loudspeaker is located in the middle of the first air guide channel; the width of the first air guide channel gradually increases in the direction from the location of the magnetic circuit end of the first loudspeaker toward any end of the first air guide channel.

4. The display device as claimed in claim 3, characterized in that, There are two second speakers, which are located on opposite sides of the first speaker; the two second speakers are located at both ends of the first air passage.

5. The display device as claimed in claim 1, characterized in that, The back of the speaker housing is provided with a second air guide channel, at least one end of which extends to the side edge of the speaker housing and communicates with the space outside the outline of the speaker housing; the diaphragm end of the first speaker and the magnetic circuit end of the second speaker are respectively disposed in the second air guide channel.

6. The display device as claimed in claim 5, characterized in that, The width of the second air passage gradually decreases in the direction from the diaphragm end of the first speaker toward the magnetic circuit end of the second speaker.

7. The display device as claimed in claim 6, characterized in that, The diaphragm of the first loudspeaker is positioned in the middle of the second air passage; there are two second loudspeakers, which are located on opposite sides of the first loudspeaker.

8. The display device as claimed in claim 7, characterized in that, The magnetic circuit ends of the two second loudspeakers are respectively located at both ends of the second air passage.

9. The display device as claimed in claim 5, characterized in that, The first air guide channel and the second air guide channel are arranged to extend along the height direction of the display device; The top and / or bottom sidewalls of the rear shell are provided with air vents, and the first air guide channel and the second air guide channel are respectively connected to the air vents.

10. The display device as claimed in claim 5, characterized in that, The display device includes electrical components, which are spaced apart on the lower side of the speaker housing, with the lower ends of the first air passage and / or the second air passage facing the electrical components.

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