Display device

Abstract

The present application relates to the technical field of terminal devices, and in particular to a display device. The display device comprises a display assembly, a housing assembly, and a sound production apparatus; the housing assembly comprises a back plate, a rear cover, a fixed frame, and a sealing member; the back plate is fixedly connected to the rear cover; the back plate and the rear cover define a cover space; at least part of the fixed frame is located in the cover space and is fixedly connected to the back plate; the sealing member is fixedly connected between the fixed frame and the back plate; the display assembly is located on the side of the back plate facing away from the rear cover; the fixed frame is provided with a communication hole; the sound production apparatus is fixed to the fixed frame; a diaphragm of the sound production apparatus is exposed by means of the communication hole; the sound production apparatus, the fixed frame, the sealing member, and the back plate define a first cavity; and a rear cavity of the sound production apparatus comprises the first cavity. The volume of a first cavity is relatively large, so that the low-frequency sub-bass performance of a sound production apparatus can be improved, thereby improving the sound quality. The vibration of air in the first cavity does not interfere with components outside the first cavity. The arrangement of the present application facilitates the thinning design of the display device.

Description

Display device

[0001] This application claims priority from the Chinese patent application No. 202422429102.7 filed on September 30, 2024, and entitled "Display device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of terminal devices, and in particular to a display device. BACKGROUND

[0003] With the continuous development of technology and the continuous improvement of people's living standards, display devices such as televisions and computers have more requirements for the structure and appearance of display devices, such as thin design of display devices.

[0004] However, thin display devices will limit the placement of sound-emitting devices, making it difficult to balance the thinness and high sound quality of display devices. SUMMARY

[0005] The purpose of the embodiments of the present application is to provide a display device.

[0006] The display device provided by the embodiments of the present application includes a display assembly, a housing assembly, and a sound-emitting device. The display assembly is mounted on the housing assembly, and the sound-emitting device is mounted on the housing assembly. The housing assembly includes a back plate, a rear cover, a fixing frame, and a sealing member. The back plate is fixedly connected with the rear cover, and the back plate and the rear cover enclose a cover space. At least part of the fixing frame is located in the cover space and is fixedly connected to the back plate. The sealing member is fixedly connected between the fixing frame and the back plate. The display assembly is located on the side of the back plate away from the rear cover. The fixing frame is provided with a communication hole. The sound-emitting device is fixed to the fixing frame, and the diaphragm of the sound-emitting device is exposed through the communication hole. The sound-emitting device, the fixing frame, the sealing member, and the back plate enclose a first cavity, and the rear cavity of the sound-emitting device includes the first cavity.

[0007] In the embodiments, the housing assembly can form a cover space for accommodating the fixing frame, the sound-emitting device, and other components (such as electronic components) of the display device. Since the sound-emitting device, the fixing frame, the sealing member, and the back plate can form a sealed first cavity, which is equivalent to forming an independent first cavity in the cover space, the first cavity can isolate the forward-radiated sound waves and the backward-radiated sound waves of the sound-emitting device when the sound-emitting device vibrates to emit sound, thereby avoiding the phenomenon of mutual cancellation of the forward-radiated sound waves and the backward-radiated sound waves due to opposite phases, and facilitating improvement of the sound quality of the sound-emitting device. The forward-radiated sound waves can be transmitted out of the display device, thereby making the display device emit sound.

[0008] In one aspect, the first cavity is used to form a back cavity of the sound generating device, and the first cavity can be used as a cavity loaded by the sound generating device when the sound generating device vibrates to generate sound. The cavity has a large volume, which can improve the low frequency diving performance of the sound generating device, thereby improving the sound quality of low frequency. In addition, the sound generating device uses the back plate, the fixing frame and the sealing element outside the sound generating device to form the back cavity of the sound generating device, which is easy to realize the design of a large volume of sound cavity, thereby facilitating the improvement of the sound quality of the sound generating device. In addition, the sound generating device can not have a sound cavity structure or can have a small volume of sound cavity structure, which is beneficial to simplify the structure of the sound generating device.

[0009] In another aspect, since the first cavity is a relatively independent cavity formed by the back plate, the fixing frame, the sealing element and the sound generating device, when the diaphragm of the sound generating device vibrates, the air in the first cavity will also vibrate. At this time, the vibration of the air in the first cavity will not interfere with the electronic components outside the first cavity, and will not affect the working state or service life of the electronic components.

[0010] Further, since the fixing frame is in the form of a cover body covering the back plate and the sound generating device is fixed to the fixing frame, the sound generating device and the back plate can not have other fixing structures. The thickness of the shell assembly can be close to the thickness of the sound generating device, thereby facilitating the compression of the display device in the direction perpendicular to the display assembly, that is, facilitating the thin design of the display device, and also facilitating the saving of materials required for installing the sound generating device and further reducing the cost. In addition, the structure of the fixing frame is relatively simple, which is easy to realize the sealing connection with the back plate, thereby facilitating the manufacturing of the shell assembly and reducing the cost.

[0011] In some embodiments, the fixing frame includes a main body portion, the sound generating device is fixed to the main body portion, and the communication hole is located in the main body portion; the rear cover is provided with a mounting hole, and the main body portion is mounted in the mounting hole.

[0012] In the embodiment, the main body portion is exposed relative to the rear cover, and the structure of the main body portion is used to fill the mounting hole of the rear cover. The main body portion can have the same function as the rear cover of the shell assembly, that is, to protect the components in the cover space of the shell assembly.

[0013] In addition, the fixing frame is used to expose the main body portion of the sound generating device relative to the rear cover, and there is no other fixing structure of the shell assembly between the main body portion and the rear cover, which reduces the space occupied by the shell assembly in the thickness direction of the display device, further reduces the thickness size of the display device, and is beneficial to the thin design of the display device or to the increase of the volume of the first cavity to improve the sound quality of the bass.

[0014] In some embodiments, the main body portion includes a first surface arranged to face away from the display assembly, the rear cover includes a second surface arranged to face away from the display assembly, and the first surface is flush with the second surface.

[0015] In the embodiment, the main body part protrudes towards the back plate to be flush with the back plate, so that the thickness space is maximally utilized in the thickness direction of the display device, which is conducive to setting a larger first cavity or making the display device have a thinner size; in addition, the first surface and the second surface can form a plane, so that the back structure of the display device is more regular.

[0016] In some embodiments, the fixing frame is located on one side of the back cover close to the back plate; the back cover also has a sound outlet hole, and the diaphragm of the sound generating device faces the sound outlet hole.

[0017] In the embodiment, the sound generating device is fixed to the fixing frame, and the diaphragm faces the sound outlet hole, so that the sound generating device is located in the cover space as a whole; since the fixing frame is fixed to the back plate and the main body part is located between the back plate and the back cover, the fixing frame is located in the cover space as a whole, so that the shell assembly can protect the sound generating device and the fixing frame respectively, avoiding collision and interference from the outside of the shell assembly. In addition, the diaphragm is arranged to face the sound outlet hole, which is also conducive to direct sound of the sound generating device.

[0018] In some embodiments, the shell assembly further comprises a vibration isolation member having elasticity, which is connected between the fixing frame and the back cover and surrounds the communication hole.

[0019] In the embodiment, the vibration isolation member has an isolation and damping effect. Since the sound generating device is mounted on the fixing frame, if the sound generating device vibrates, it will cause the fixing frame to vibrate slightly. The vibration of the fixing frame is isolated by the vibration isolation member, so that the vibration of the fixing frame is not transmitted to the back cover, thereby avoiding abnormal noise of the display device caused by the sound generating device.

[0020] In some embodiments, the back plate comprises a protruding part protruding towards the side away from the display assembly, the protruding part is annular and fixedly connected with the fixing frame.

[0021] In the embodiment, the protruding part is annular and protrudes, so that the protruding part is equivalent to locally thickening the back plate, that is, the protruding part has a reinforcing effect on the structure of the back plate, thereby improving the supporting performance of the back plate, and further facilitating the display device to have higher strength and stronger anti-deformation capability. In addition, the protruding part can protrude to a certain height, and the protruding part and the fixing part can be connected by a sealing member. When the fixing frame and the first part have a large interval, the sealing member with a thin thickness can also connect the fixing frame and the back plate, facilitating the thinness of the sealing member, thereby reducing the cost of the sealing member.

[0022] In some embodiments, the fixing frame comprises a fixing part, a connecting part and a main body part, the connecting part is connected between the fixing part and the main body part, the connecting part surrounds the main body part and protrudes towards the back plate, the fixing part is fixed to the back plate, and the sound generating device is fixed to the main body part; the protruding part is fixedly connected with the fixing part through the sealing member.

[0023] In the embodiment, the protruding portion is easy to correspond to the shape of the sealing member and the shape of the fixing portion, and is easy to position the mounting of the sealing member and the fixing frame, and is convenient for assembly. Moreover, the protruding portion has high strength, the fixing portion also has high strength, the sealing member has elasticity and is connected between the protruding portion and the fixing portion, so that the sealing member is more conducive to buffering the vibration between the fixing portion and the protruding portion, thereby reducing the risk of resonance noise. The high strength of the protruding portion can strengthen the back plate, prevent the back plate from deforming, so that the protruding portion and the fixing portion can be better connected, reduce the air leakage caused by the poor sealing effect of the sealing member due to deformation, and be conducive to keeping the sound quality of the sound generating device high and improving the reliability. In addition, since the protruding portion can protrude to a certain height, and the protruding portion and the fixing portion can be connected through the sealing member, when the fixing frame and the first portion have a large gap, the sealing member with a thin thickness can also connect the fixing frame and the back plate, so as to facilitate the thin type setting of the sealing member, thereby reducing the cost of the sealing member.

[0024] In some embodiments, the back plate is an integrally formed structural member, and / or the fixing frame is an integrally formed structural member.

[0025] In the embodiment, when the back plate is an integrally formed structural member, the back plate has good mechanical properties, and the back plate can have good support ability for the components inside the shell assembly.

[0026] When the fixing frame is an integrally formed structural member, the fixing frame can have a more reliable support for the sound generating device, and can reduce the possibility of noise generated by resonance with the sound generating device, thereby facilitating the improvement of the sound quality of the display device.

[0027] In some embodiments, the sealing member has elasticity.

[0028] In the embodiment, the sealing member corresponds to the elastic connection between the back plate and the fixing frame. Since the sound generating device is mounted on the fixing frame, when the sound generating device vibrates to generate sound, the sound generating device can transmit vibration to the fixing frame. Since the sealing member can perform vibration isolation, the vibration of the fixing frame is avoided from being transmitted to the back plate, thereby reducing the formation of resonance noise.

[0029] In some embodiments, the material of the sealing member is foam or rubber.

[0030] In some embodiments, the shell assembly further comprises a fastener and an elastic member, the elastic member is fixed to the fixing frame, and the fastener is fixedly connected to the elastic member and the back plate.

[0031] In the embodiment, the fastener and the elastic member can improve the reliability of the connection between the fixing frame and the back plate, and because the elastic member can be elastically connected and buffered between the fixing frame and the fastener, when the sound production device vibrates to produce sound, the elastic member can prevent the fixing frame from transmitting vibration or impact to the back plate, thereby reducing the formation of resonance noise.

[0032] In some embodiments, the diaphragm of the sound production device is located in the communication hole.

[0033] In the embodiment, because the diaphragm is exposed through the communication hole and the diaphragm of the sound production device is located in the communication hole, most of the other components of the sound production device are located inside the fixing frame, the space occupied by the sound production device in the thickness direction of the display device coincides with the space occupied by the fixing frame in the thickness direction of the display device, the sound production device does not additionally occupy space in the thickness direction of the display device, and by fully utilizing the space between the fixing frame and the back plate, the thin design of the display device is facilitated. Moreover, because the diaphragm is located in the communication hole, the sound production device is equivalent to blocking the communication hole by using its own structure.

[0034] In some embodiments, the vibration direction of the diaphragm is perpendicular to the display assembly.

[0035] In the embodiment, compared with the height and width dimensions of the sound production device, the thickness dimension of the sound production device is easier to design smaller. The sound production device has a smaller thickness dimension in the same direction as the thickness direction of the display device, so the size of the sound production device has less limitation on the thickness of the display device, which facilitates the thin design of the display device.

[0036] In some embodiments, the sound production device further comprises a spider, a voice coil, and a magnetic circuit assembly; the spider is mounted to the fixing frame; the diaphragm is fixed to the spider; the magnetic circuit assembly is fixed to the spider and is arranged opposite to the diaphragm, and the magnetic circuit assembly has a magnetic gap; one end of the voice coil is fixed to the diaphragm, and the other end is located in the magnetic gap of the magnetic circuit assembly.

[0037] In the embodiment, the sound production device can be assembled and then mounted as a whole to the fixing frame, one side space of the diaphragm of the sound production device is communicated with the outside space of the display device through the sound outlet hole to make the sound production device sound, and the other side space of the diaphragm is communicated with the first cavity to improve the sound quality of the sound production device, so that the sound production device does not need to form a large volume of sound cavity, and the structure of the sound production device is relatively simple. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to illustrate the technical solutions in the embodiments or the background art of the present application, the drawings needed to be used in the embodiments or the background art of the present application will be described below.

[0039] FIG. 1 is a front view of a display device according to an embodiment of the present application;

[0040] Fig. 2 is a schematic diagram of a perspective structure of the display device shown in Fig. 1;

[0041] Fig. 3 is a schematic diagram of an exploded structure of the display device shown in Fig. 2 in some embodiments;

[0042] Fig. 4 is a schematic diagram of an internal structure of the display device shown in Fig. 1 in some embodiments;

[0043] Fig. 5 is a schematic diagram of an internal structure of the display device shown in Fig. 1 in other embodiments;

[0044] Fig. 6 is a schematic diagram of an internal structure of the display device shown in Fig. 1 in still other embodiments;

[0045] Fig. 7 is a schematic diagram of an internal structure of the display device shown in Fig. 1 in yet other embodiments. DETAILED DESCRIPTION

[0046] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0047] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited, the terms "mounting", "connecting" should be understood in a broad sense, for example, "connecting" can be detachable connection, or can be non-detachable connection; can be direct connection, or can be indirect connection through an intermediate medium. "Multiple" means at least two.

[0048] The orientation terms mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer", "top", "bottom", "side" and the like, are only the directions of the accompanying drawings, therefore, the orientation terms used are for better and clearer illustration and understanding of the embodiments of the present application, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0049] In the embodiments of the present application, the relative positional relationship mentioned, such as parallel, perpendicular, aligned and the like, are all relative to the current process level, and are not absolute strict limits, and a small amount of deviation is allowed, for example, A is parallel to B, which means that A and B are parallel or approximately parallel, and the included angle between A and B can be between 0 degrees and 10 degrees. For example, A is perpendicular to B, which means that A and B are perpendicular or approximately perpendicular, and the included angle between A and B can be between 80 degrees and 100 degrees.

[0050] In the embodiments of the present application, the terms "first", "second", "third", "fourth" are used only for descriptive purposes, and cannot be construed as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined as "first", "second", "third", "fourth" can explicitly or implicitly include one or more of the features.

[0051] The display device provided in the present application can be a television, an ultra-mobile personal computer (UMPC), a personal digital assistant (PDA), a pad, a notebook computer, a vehicle-mounted display device, and the like. The embodiments of the present application do not strictly limit the specific form of the display device.

[0052] For example, the display device can have a large screen size so that the display device provides a large picture. For example, the screen size of the display device can be greater than or equal to 14 inches. For example, the display device can be a 50-inch television or a larger television or screen.

[0053] Please refer to FIG. 1 to FIG. 3, FIG. 1 is a front view of a display device 100 provided in an embodiment of the present application, FIG. 2 is a schematic diagram of the three-dimensional structure of the display device 100 shown in FIG. 1, and FIG. 3 is a schematic diagram of the exploded structure of the display device 100 shown in FIG. 2 in some embodiments.

[0054] The display device 100 in the embodiment of FIG. 1 is exemplarily illustrated by taking a television as an example.

[0055] In some embodiments, the display device 100 can include a display assembly 10 and a housing assembly 20. The display assembly 10 is mounted to the housing assembly 20. The display device 100 can have a thickness direction, a length direction, and a height direction. The thickness direction, the length direction, and the height direction of the display device 100 are perpendicular to each other. The thickness direction of the display device 100 can be perpendicular to the display assembly 10 (display screen). The thickness direction of the display device 100 can be the Z direction, the length direction of the display device 100 can be the X direction, and the height direction of the display device 100 can be the Y direction.

[0056] For example, the display assembly 10 can include a display screen, a light emitting piece, a light reflecting plate, and a light uniformizing plate. The display screen, the light uniformizing plate, and the light reflecting plate are arranged in sequence, and the light uniformizing plate is connected between the display screen and the light reflecting plate, and the light emitting piece is located between the light uniformizing plate and the light reflecting plate.

[0057] The display screen can be a liquid crystal display (LCD) panel, an organic light-emitting diode (OLED) display panel, a quantum dot light emitting diode (QLED) display panel, or the like. The display screen can be a flat screen. In other embodiments, the display screen can also be a curved screen, for example, the display screen can be a concave curved screen.

[0058] The light-reflecting plate is configured to reflect the light emitted by the point light sources to the light-uniformizing plate above. The light-reflecting plate can effectively increase the light intensity of the light entering the light-uniformizing plate and increase the utilization rate of the light.

[0059] The light-emitting member can include a plurality of point light sources. The plurality of point light sources can be arranged in a matrix. The point light sources can be light-emitting diode (LED) lamps.

[0060] The light emitted by the light-emitting member can directly pass through the light-uniformizing plate or pass through the light-uniformizing plate after being reflected by the light-reflecting plate, so that uniform white light is emitted toward the display screen at the light-uniformizing plate, which is equivalent to forming a surface light source with uniform light emission at the light-uniformizing plate. The light emitted by the light-uniformizing plate passes through the display screen and is emitted, the display screen can form an image, thereby realizing the display function of the display device 100.

[0061] In some embodiments, the display assembly 10 can further include a film (not shown in the figure). The film can be located between the light-uniformizing plate and the display screen. The film is an optical film configured to process light. For example, the film can include a brightness enhancement film to increase the display brightness of the display screen within a viewing angle range. The film can also include a diffusion film, which can more uniformly mix the light sources to enable the display screen to have more uniform brightness when displaying.

[0062] For example, the housing assembly 20 can include a back plate 1 and a rear cover 2. The rear cover 2 is detachably connected to the back plate 1. The display assembly 10 can be located on the side of the back plate 1 facing away from the rear cover 2.

[0063] The back plate 1 can be a substantially rectangular flat structure. The back plate 1 can be configured to be fixedly connected to the display assembly 10 to support the display assembly 10. The back plate 1 can be a thin plate to make the display device 100 thinner. The back plate 1 can have high strength to better support the display assembly 10.

[0064] For example, the material of the back plate 1 can include, but is not limited to, at least one of an aluminum alloy plate, a stainless steel plate, a steel plastic plate, an injection plastic, an extrusion plastic, an iron plate, etc., and can be set according to requirements.

[0065] The back plate 1 can be an integral structure. In this case, the back plate 1 has good mechanical properties and can provide good support for components on the inner side of the shell assembly 20. In other embodiments, the back plate 1 can also be a split structure, for example, the back plate 1 can be assembled from a plate body and a middle frame.

[0066] The back cover 2 can be substantially in the form of a cover. The back cover 2 can be a thin plate. The back cover 2 is used to be fixedly connected with the back plate 1, and the back cover 2 can have high strength to provide good support for the back plate 1 and other components.

[0067] For example, the material of the back cover 2 can include, but is not limited to, at least one of an aluminum alloy plate, a stainless steel plate, a steel plastic plate, an injection plastic, an extrusion plastic, an iron plate, etc., and can be set according to requirements.

[0068] The back cover 2 can be an integral structure, and the back cover 2 has good mechanical properties.

[0069] Referring to FIG. 4, FIG. 4 is a schematic diagram of the internal structure of the display device 100 in some embodiments.

[0070] In some embodiments, the display device 100 can further include a sound emitting device 30. The sound emitting device 30 is used to realize the sound emitting function of the display device 100. The sound emitting device 30 can be mounted on the shell assembly 20. The sound emitting device 30 can have a thickness direction, a length direction and a height direction. The thickness direction, the length direction and the height direction of the sound emitting device 30 are perpendicular to each other.

[0071] For example, the sound emitting device 30 can have a diaphragm 301, and the diaphragm 301 of the sound emitting device 30 can vibrate to emit sound. The sound emitting device 30 can be mounted on the inner side of the shell assembly 20 and communicate with the space outside the shell assembly 20, so that the sound can be transmitted to the outside of the shell assembly 20. For example, the shell assembly 20 can be provided with a sound outlet hole 201, and the sound emitting device 30 emits sound to the outside of the shell assembly 20 through the sound outlet hole 201. The sound emitting device 30 can be located at the middle position of the back cover 2 or at the periphery of the back cover 2, which is not strictly limited. The number of sound emitting devices 30 can be one or more. For example, when the number of sound emitting devices 30 is more than one, the sound emitting devices 30 can be arranged at intervals and symmetrically distributed on the shell assembly 20, so that the display device 100 has better sound quality.

[0072] It can be understood that when the sound generating device 30 can vibrate to generate sound, the sound generating device 30 can generate sound at a corresponding frequency and loudness when an alternating current of different characteristics (such as frequency, voltage) is turned on, thereby emitting the required sound.

[0073] It can be understood that the display device 100 can further include electronic components (not shown in the figure). The electronic components can include a circuit board, a functional interface, and the like. The circuit board can have a controller and the like thereon. The specific types and quantities of components included in the electronic device can be set according to requirements, and the present embodiment is not strictly limited. Among them, the electronic components can be electrically connected with the display assembly 10, so that the display assembly 10 displays the corresponding picture. The electronic device can be electrically connected with the sound generating device 30, so that the sound generating device 30 emits the corresponding sound.

[0074] It can be understood that a plurality of through holes can be formed on the rear cover 2. For example, the through hole can be used as a hanging hole, and an external support can be installed through the hanging hole to support the display device 100. Alternatively, the display device 100 can also be directly hung through the hanging hole. For example, the through hole can be used as an avoiding hole to avoid the functional interface of the electronic components. For example, the through hole can also be used as a heat dissipation hole, and the like. The present embodiment will not be exemplified one by one.

[0075] In some embodiments, the shell assembly 20 can further include a fixing frame 3. Among them, the rear cover 2 can form a cover space 20a with the back plate 1, and the fixing frame 3 can be installed on the back plate 1 and located in the cover space 20a.

[0076] Among them, the cover space 20a can be used to place the components of the display device 100, for example, the cover space 20a can be used to place the electronic components, the sound generating device 30, and the like, and the present example will not be exemplified one by one. The back plate 1 can support the components in the cover space 20a, and the rear cover 2 can protect the components in the cover space 20a.

[0077] Among them, the fixing frame 3 can be substantially in the form of a cover.

[0078] For example, the fixing frame 3 can include a fixing portion 31, a connecting portion 32, and a main body portion 33. The connecting portion 32 is connected between the fixing portion 31 and the main body portion 33. The connecting portion 32 is arranged around the main body portion 33. The fixing portion 31 is arranged around the connecting portion 32. The connecting portion 32 is protrudingly arranged towards one side of the main body portion 33, and the fixing portion 31 is arranged around the main body portion 33. For example, the fixing portion 31 and the main body portion 33 can be substantially in the form of a flat plate, respectively. For example, the fixing portion 31 and the main body portion 33 can be substantially in the form of a rectangular ring structure, and the connecting portion 32 can be substantially in the form of a rectangular cylindrical structure.

[0079] Exemplarily, the fixing frame 3 can be provided with a through hole 34. The through hole 34 can be provided in the middle of the main body 33 and can penetrate the main body 33. The fixing frame 3 can be provided with a fixing hole 35. The fixing hole 35 can be provided in the fixing portion 31. The fixing frame 3 can be provided with a plurality of fixing holes 35. The plurality of fixing holes 35 can be arranged along the circumference of the fixing portion 31. The cover space 20a of the fixing frame 3 can have an opening. The opening can be formed in the connecting portion 32.

[0080] Exemplarily, the fixing frame 3 can be an integrally formed structure.

[0081] For example, the fixing frame 3 can be a sheet member. The fixing frame 3 can be formed by stamping a metal plate or by using plastic injection molding. The integrally formed fixing frame 3 has good integrity and better support capability.

[0082] Exemplarily, the fixing frame 3 can be fixedly installed on the back plate 1. The fixing frame 3 and the back plate 1 of the shell assembly 20 can form a first cavity 20b.

[0083] For example, the shell assembly 20 can further include a fastener 4 and an elastic member 5. The elastic member 5 is fixed to the fixing frame 3. The fastener 4 is fixedly connected to the elastic member 5 and the back plate 1. At this time, the back plate 1 is fixed relative to the fastener 4. The fastener 4 is elastically connected to the fixing frame 3. The back plate 1 can be provided with a fastening hole 11. The position and number of the fastening hole 11 can correspond to the position and number of the fixing hole 35, so that the fastening hole 11 and the fixing hole 35 can be docked. The elastic member 5 can be substantially in the form of a ring. The elastic member 5 can be fixed to the fixing hole 35. The fastening hole 11 and the fixing hole 35 can be one-to-one corresponding. The fastener 4 can be a bolt. The fastener 4 can be threadedly connected to the fastening hole 11. The fastener 4 can be provided through the elastic member 5 and fixedly connected to the elastic member 5, so that the fixing frame 3 and the back plate 1 are fixed.

[0084] Exemplarily, the through hole 34 of the fixing frame 3 can be in communication with the sound outlet hole 201 of the shell assembly 20. For example, the sound outlet hole 201 can include a plurality of sound outlet holes with small diameters. The plurality of sound outlet holes can be arranged in an array.

[0085] The fixing frame 3 and the back plate 1 can be sealingly connected. The shell assembly 20 can include a sealing member 6. The sealing member 6 is fixed between the back plate 1 and the fixing frame 3 of the shell assembly 20 to sealingly connect the space between the back plate 1 and the fixing frame 3.

[0086] Exemplarily, the sealing member 6 can be in a ring shape, and the shape of the sealing member 6 corresponds to the shape of the opening of the fixing frame 3. The sealing member 6 is located at the opening of the fixing frame 3, so as to seal the opening of the fixing frame 3 by the back plate 1. The fastener 4 can apply a fastening force to make the fixing frame 3, the sealing member 6 and the back plate 1 abut with each other, so as to make the sealing connection between the fixing frame 3 and the back plate 1 more reliable.

[0087] Exemplarily, the sealing member 6 can be made of a flexible material and can also have elasticity. For example, the sealing member 6 can be made of foam, rubber or the like. The fixing frame 3 and the back plate 1 can be spaced apart to accommodate the sealing member 6, so as to ensure the sealing effect between the fixing frame 3 and the back plate 1.

[0088] In other embodiments, the fixing frame 3 and the housing assembly 20 can also be connected by a sealing glue or the like.

[0089] The sound generating device 30 can be mounted on the fixing frame 3. The first cavity 20b is used to form an acoustic cavity of the sound generating device 30, and the sound generating device 30 generates sound through the sound hole 201. The diaphragm 301 of the sound generating device 30 is exposed through the communication hole 34, so that the sound generating device 30 can generate sound.

[0090] Exemplarily, the sound generating device 30 can be located on the side of the fixing frame 3 facing the back plate 1, that is, the sound generating device 30 can be located on the inner side of the fixing frame 3. The sound generating device 30 can be fixed on the peripheral side wall of the communication hole 34. The sound generating device 30, the fixing frame 3, the sealing member 6 and the back plate 1 form the first cavity 20b, and the rear cavity of the sound generating device 30 includes the first cavity 20b. That is, the first cavity 20b can be used to form the rear cavity of the sound generating device 30 to improve the sound quality when the sound generating device 30 generates sound. It can be understood that part of the space of the sound generating device 30 itself can also be used to form the rear cavity thereof. It can be understood that the space on one side of the diaphragm 301 of the sound generating device 30 communicates with the sound hole 201, which is the front cavity; the space on the other side of the diaphragm 301 of the sound generating device 30 includes the first cavity 20b, which is the rear cavity.

[0091] For example, the diaphragm 301 of the sound production device 30 can be located in the communication hole 34. In this case, the diaphragm 301 of the sound production device 30 can be located in the communication hole 34 when the sound production device 30 vibrates to produce sound. The diaphragm 301 of the sound production device 30 can be substantially flush with the communication hole 34. In this case, since the diaphragm 301 of the sound production device 30 is exposed through the communication hole 34, and the diaphragm 301 of the sound production device 30 is located in the communication hole 34, most of the other components of the sound production device 30 (such as the yoke, the magnetic circuit assembly, the voice coil, and the like shown below) are located on the inner side of the fixed frame 3. The sound production device 30 occupies the space in the thickness direction (Z direction) of the display device 100 coincides with the space occupied by the fixed frame 3 in the thickness direction of the display device 100, and the sound production device 30 does not occupy additional space in the thickness direction of the display device 100. By fully utilizing the space between the fixed frame 3 and the back plate 1, the display device 100 can be designed to be thin. Moreover, the diaphragm 301 is located in the communication hole 34, and the sound production device 30 is equivalent to blocking the communication hole 34 by using its own structure.

[0092] In other embodiments, the sound production device 30 can also be partially located on the side of the fixed frame 3 away from the back plate 1.

[0093] In this embodiment, the shell assembly 20 can form a cover space 20a for accommodating the fixed frame 3, the sound production device 30, and other components (such as electronic components) of the display device 100. Since the sound production device 30, the fixed frame 3, the sealing member 6, and the back plate 1 can form a sealed first cavity 20b, which is equivalent to forming a first cavity 20b independent of the cover space 20a, the first cavity 20b can isolate the forward radiation sound waves and the backward radiation sound waves of the sound production device 30 when the sound production device 30 vibrates to produce sound, thereby avoiding the phenomenon that the forward radiation sound waves and the backward radiation sound waves of the sound production device 30 cancel each other out due to opposite phases, and improving the sound quality of the sound production device 30. The forward radiation sound waves can be transmitted out of the display device 100, thereby making the display device 100 produce sound.

[0094] On the one hand, the first cavity 20b is used to form the rear cavity of the sound production device 30, and the first cavity 20b can be used as the cavity loaded by the sound production device 30 when the sound production device 30 vibrates to produce sound. The cavity has a large volume, which can improve the low-frequency diving performance of the sound production device 30, thereby improving the sound quality of the low frequency. Moreover, the sound production device 30 can use the back plate 1, the fixed frame 3, and the sealing member 6 outside the sound production device 30 to form its own rear cavity, which is easy to realize a large-volume acoustic cavity design, thereby improving the sound quality of the sound production device 30. In addition, the sound production device 30 can not have an acoustic cavity structure or can have a small-volume acoustic cavity structure, which is beneficial to simplify the structure of the sound production device 30.

[0095] On the other hand, since the first cavity 20b is a relatively independent cavity formed by the back plate 1, the fixing frame 3, the sealing member 6 and the sound production device 30, when the diaphragm 301 of the sound production device 30 vibrates, the air in the first cavity 20b will also vibrate, at this time, the vibration of the air in the first cavity 20b will not interfere with the electronic components outside the first cavity 20b, and will not affect the working state or service life of the electronic components.

[0096] Further, since the fixing frame 3 is in a cover structure covering the back plate 1, and the sound production device 30 is fixed to the fixing frame 3, the sound production device 30 and the back plate 1 can not have other fixing structures, and the thickness of the shell assembly 20 can be close to the thickness of the sound production device 30, thereby facilitating the compression of the display device 100 in the direction perpendicular to the display assembly 10, that is, facilitating the thin design of the display device 100, and also facilitating the saving of materials required for installing the sound production device 30, thereby reducing the cost. Moreover, the structure of the fixing frame 3 is relatively simple, and it is easy to realize the sealing connection with the back plate 1, so the manufacturing of the shell assembly 20 is easy and the cost is low.

[0097] In some embodiments, as described above, when the fixing frame 3 is an integrally formed structure, and the sound production device 30 is installed on the fixing frame 3. At this time, the fixing frame 3 can provide reliable support for the sound production device 30, and can reduce the possibility of producing noise due to resonance with the sound production device 30, thereby facilitating the improvement of the sound quality of the display device 100.

[0098] In some embodiments, as described above, when the sealing member 6 is elastic, the sealing member 6 is equivalent to elastically connecting the back plate 1 and the fixing frame 3. Since the sound production device 30 is installed on the fixing frame 3, when the sound production device 30 vibrates to produce sound, the sound production device 30 can transmit the vibration to the fixing frame 3. Since the sealing member 6 can perform vibration isolation, the vibration of the fixing frame 3 is prevented from being transmitted to the back plate 1, thereby reducing the formation of resonance noise.

[0099] Further, when the fixing frame 3 and the back plate 1 are also connected by the fastener 4 and the elastic member 5, at this time, the fastener 4 and the elastic member 5 can improve the reliability of the connection between the fixing frame 3 and the back plate 1. Since the elastic member 5 can elastically connect and buffer between the fixing frame 3 and the fastener 4, when the sound production device 30 vibrates to produce sound, the elastic member 5 can prevent the fixing frame 3 from transmitting vibration or impact to the back plate 1, thereby reducing the formation of resonance noise.

[0100] In some embodiments, the vibration direction of the diaphragm 301 can be perpendicular to the display assembly 10.

[0101] The thickness direction of the sound production device 30 is generally parallel to the vibration direction of the diaphragm 301. Compared with the height dimension and the width dimension of the sound production device 30, the thickness dimension of the sound production device 30 is easier to design smaller. Wherein, the direction perpendicular to the display assembly 10 is the thickness direction of the display device 100, thus the thickness direction of the sound production device 30 is parallel to the thickness direction (Z direction) of the display device 100.

[0102] In the embodiment, the thickness direction of the sound production device 30 with smaller size is the same as the thickness direction of the display device 100, thus the size of the sound production device 30 has less limitation on the thickness of the display device 100, which is beneficial to the thin design of the display device 100.

[0103] In some examples, in the thickness direction of the display device 100, the projected area of the first cavity 20b is greater than 2 times the projected area of the sound production device 30. At this time, the volume of the first cavity 20b is greater than the volume of the sound production device 30, the sound production device 30 has a larger sound cavity, which greatly improves the sound quality of the sound production device 30, so that the sound quality of the display device 100 is better.

[0104] In some embodiments, the entire fixed frame 3 can be located on the side of the back cover 2 close to the back plate 1, and the diaphragm 301 of the sound production device 30 is arranged towards the sound outlet hole 201. At this time, since the sound production device 30 is fixed to the fixed frame, and the diaphragm 301 is arranged towards the sound outlet hole 201, the sound production device 30 is equivalent to being located in the cover space 20a as a whole; since the fixed frame 3 is fixed to the back plate 1, and the main body part 33 is located between the back plate 1 and the back cover 2, the fixed frame 3 is equivalent to being located in the cover space 20a as a whole, thus the shell assembly 20 can protect the sound production device 30 and the fixed frame 3 respectively, avoiding collision and interference from the outside of the shell assembly 20. Moreover, the diaphragm 301 arranged towards the sound outlet hole 201 is also beneficial to the direct sound of the sound production device 30.

[0105] In some embodiments, the shell assembly 20 can further include a vibration isolation piece 7. Wherein, the vibration isolation piece 7 is arranged between the fixed frame 3 and the back cover 2, the vibration isolation piece 7 connects the fixed frame 3 and the back cover 2, the vibration isolation piece 7 surrounds the communication hole 34, and the vibration isolation piece 7 can surround the sound outlet hole 201. For example, in the thickness direction of the display device 100, the projection of the vibration isolation piece 7 surrounds the projection of the sound production device 30.

[0106] For example, the fixed frame 3 and the back cover 2 can be arranged in a spaced manner, and the fixed frame 3 and the back cover 2 are isolated by the vibration isolation piece 7. The vibration isolation piece 7 can be a rectangular ring structure to better adapt to the fixed frame 3. The vibration isolation piece 7 can have elasticity to achieve the vibration isolation effect. For example, the vibration isolation piece 7 can be made of materials such as foam and rubber.

[0107] Exemplarily, the communication hole 34 of the fixing frame 3 is arranged opposite to the sound outlet hole 201 of the back cover 2 in a direction perpendicular to the display assembly 10. The sound outlet hole 201 is equivalent to being located at the back of the display device 100, and the communication hole 34 is arranged towards the sound outlet hole 201. For example, the sound outlet hole 201 and the communication hole 34 can be circular. The diameter of the sound outlet hole 201 can be substantially the same as the diameter of the communication hole 34. The vibration isolation member 7 can also be a circular structure, and the diameter of the vibration isolation member 7 can be greater than the diameter of the communication hole 34.

[0108] In this embodiment, the vibration isolation member 7 has an isolation and damping effect. Since the sound production device 30 is installed on the fixing frame 3, if the sound production device 30 vibrates, the fixing frame 3 will also vibrate slightly. Through the isolation of the vibration isolation member 7, the vibration of the fixing frame 3 is reduced and transmitted to the back cover 2, thereby avoiding the vibration noise of the display device 100 caused by the sound production of the sound production device 30.

[0109] In addition, when the fixing frame 3 can be located on the side of the back cover 2 close to the back plate 1, the vibration isolation member 7 can also form a sound outlet channel between the communication hole 34 and the sound outlet hole 201. The vibration isolation member 7 can avoid the communication of the communication hole 34 and / or the sound outlet hole 201 with other cavities in the shell assembly 20, so that the sound produced by the sound production device 30 can be directly output from the sound outlet channel, which is beneficial to improve the sound quality.

[0110] In some embodiments, the sound production device 30 can further include a basket 302, a voice coil 303 and a magnetic circuit assembly 304 in addition to the diaphragm 301.

[0111] The basket 302 can be fixedly connected with the fixing frame 3. The basket 302 can be installed at the periphery of the communication hole 34 of the fixing frame 3 to fix the sound production device 30 to the fixing frame 3. The basket 302 is used to support the diaphragm 301, the voice coil 303 and the magnetic circuit assembly 304 of the sound production device 30. The basket 302 and the shell can be relatively independent components, and the basket 302 can be connected with the shell by adhesion, welding, screw connection or the like. For example, the basket 302 can be adhered to the opening of the shell, so as to install the sound production device 30 to the shell.

[0112] The diaphragm 301 can be fixed to the basket 302. The diaphragm 301 can be located at the communication hole 34. The area of the diaphragm 301 can be substantially the same as the area of the communication hole 34. One side space of the diaphragm 301 can be in communication with the external space of the fixing frame 3 to realize the vibration sound production of the diaphragm 301. For example, one side surface of the diaphragm 301 can be exposed to the fixing frame 3 and in communication with the sound outlet hole 201; the other side space of the diaphragm 301 can be in communication with the first cavity 20b.

[0113] The magnetic circuit assembly 304 can be fixed to the yoke 302, and can be arranged opposite to the diaphragm 301. The magnetic circuit assembly 304 can be located on the side of the diaphragm 301 facing the back plate 1. The magnetic circuit assembly 304 can have a magnetic gap. For example, the magnetic circuit assembly 304 can include a magnet 3041, a magnetic conducting piece 3042, and a dust shield 3043. The magnetic conducting piece 3042 is fixed to the surface of one side magnetic pole of the magnet 3041, and the dust shield 3043 is fixed to the surface of the other side magnetic pole of the magnet 3041. The magnet 3041 and the dust shield 3043 can form the magnetic gap of the magnetic circuit assembly 304.

[0114] One end of the voice coil 303 is fixed to the diaphragm 301, and the other end is located in the magnetic gap of the magnetic circuit assembly 304. The voice coil 303 can be formed by winding a wire. When the voice coil 303 is energized, the voice coil 303 generates an interaction force with the magnetic circuit assembly 304, and the voice coil 303 is driven. Since the voice coil 303 is fixedly connected to the diaphragm 301, the voice coil 303 drives the diaphragm 301 to vibrate, thereby generating sound.

[0115] In the embodiment, the sound generating device 30 can be assembled and then integrally mounted to the fixed frame 3. The space on one side of the diaphragm 301 of the sound generating device 30 communicates with the space outside the display device 100 through the sound outlet hole 201, so that the sound generating device 30 generates sound. The space on the other side of the diaphragm 301 communicates with the first cavity 20b, so as to improve the sound quality of the sound generating device 30. The sound generating device 30 does not need to form a large volume of sound cavity, and the structure of the sound generating device 30 is relatively simple.

[0116] In other embodiments, the sound generating device 30 can include more components, which are not strictly limited in the embodiment. In other embodiments, the sound generating device 30 can also use other structures or principles to generate sound, which are not strictly limited in the embodiment.

[0117] Please refer to FIG. 5, which is a schematic diagram of the internal structure of the display device 100 shown in FIG. 1 in some other embodiments. The display device 100 in the embodiment of FIG. 5 can include most of the technical features of the display device 100 in the embodiment of FIG. 4. The differences between the two will be mainly described below, and most of the technical features that are the same will not be described in detail.

[0118] The main difference between the display device 100 in the embodiment of FIG. 5 and the display device 100 in the embodiment of FIG. 4 is the arrangement of the housing assembly 20.

[0119] In some embodiments, the back plate 1 comprises a first portion 12, a protruding portion 13, and a second portion 14. The protruding portion 13 connects the first portion 12 and the second portion 14, the protruding portion 13 surrounds the second portion 14, the first portion 12 surrounds the protruding portion 13, and the protruding portion 13 protrudes towards a side away from the display assembly 10. The protruding portion 13 is connected to the fixing frame 3, and the second portion 14 is arranged opposite to the sound generating device 30.

[0120] For example, the first portion 12 can have a plate-like structure. The first portion 12 can be fixedly connected to the fixing portion 31 of the fixing frame 3.

[0121] For example, the protruding portion 13 can have a ring-like structure. Since the back plate 1 can be a thin plate, the protruding portion 13 can be a protruding structure formed by bending. For example, the protruding portion 13 can be formed by stamping or other processes. The protruding height of the protruding portion 13 can be substantially the same as the height of the fixing portion 31 of the fixing frame 3, but is not limited thereto.

[0122] For example, the protruding portion 13 can be fixedly connected to the fixing portion 31 of the fixing frame 3. The shape of the protruding portion 13 can be the same as the shape of the fixing portion 31 of the fixing frame 3, so as to facilitate the butt joint and fixation of the protruding portion 13 and the fixing portion 31.

[0123] For example, the second portion 14 can have a plate-like structure. For example, the second portion 14 can have a rectangular plate-like structure. For example, the second portion 14 can be arranged opposite to the main body portion 33 of the fixing frame 3, and the second portion 14 can form a side wall of the first cavity 20b.

[0124] When the display device 100 comprises the sealing member 6, the protruding portion 13 and the fixing portion 31 can be sealingly connected through the sealing member 6. At this time, the shape of the protruding portion 13 is easy to correspond to the shape of the sealing member 6 and the shape of the fixing portion 31, the protruding portion 13 is easy to position the installation of the sealing member 6 and the fixing frame 3, and the assembly is facilitated. Moreover, since the protruding portion 13 has high strength, the fixing portion 31 can also have high strength, the sealing member 6 has elasticity and is connected between the protruding portion 13 and the fixing portion 31, so that the sealing member 6 is more conducive to buffering the vibration between the fixing portion 31 and the protruding portion 13, thereby reducing the risk of generating resonance noise. The high strength of the protruding portion 13 can strengthen the back plate 1, prevent the back plate 1 from deforming, so that the protruding portion 13 and the fixing portion 31 can be better connected, reduce the air leakage caused by the poor sealing effect of the sealing member 6 due to deformation, and be conducive to maintaining the high sound quality of the sound generating device 30 and improving the reliability. In addition, since the protruding portion 13 can protrude to a certain height, and the protruding portion 13 and the fixing portion 31 can be connected through the sealing member 6, when the fixing frame 3 and the first portion 12 have a large gap, the sealing member 6 with a thin thickness can also connect the fixing frame 3 and the back plate 1, facilitating the thin design of the sealing member 6, thereby reducing the cost of the sealing member 6.

[0125] In the embodiment, by arranging the protruding portion 13, the protruding portion 13 is annular and protrudes, so that the protruding portion 13 corresponds to the local thickening of the back plate 1, that is, the protruding portion 13 has a reinforcing effect on the structure of the back plate 1, thereby improving the supporting performance of the back plate 1, and further facilitating the display device 100 to have higher strength and stronger deformation resistance.

[0126] Please refer to FIG. 6, which is a schematic diagram of the internal structure of the display device 100 shown in FIG. 1 in some embodiments. In the display device 100 of the embodiment of FIG. 6, most of the technical features of the display device 100 of the embodiment of FIG. 4 can be included. The differences between the two will be mainly described below, and most of the technical features of the two will not be described in detail.

[0127] The main difference between the display device 100 of the embodiment of FIG. 6 and the display device 100 of the embodiment of FIG. 4 lies in the arrangement of the housing assembly 20 and the fixing frame 3.

[0128] In some embodiments, the rear cover 2 can be provided with a mounting hole 202, and the main portion 33 is installed in the mounting hole 202. The space of the mounting hole 202 can coincide with the space of the communication hole 34. The mounting hole 202 can be a single-hole structure. The mounting hole 202 can coincide with the communication hole 34, which means that the space of the mounting hole 202 coincides with the space of the communication hole 34 in the thickness direction of the display device 100.

[0129] The side wall of the mounting hole 202 surrounds the main body part 33 of the fixing frame 3, the main body part 33 is exposed relative to the back cover 2, and the structure of the main body part 33 is used to fill the mounting hole 202 of the back cover 2. The main body part 33 can have the same function as the back cover 2 of the shell assembly 20, that is, to protect the components in the cover space 20a of the shell assembly 20. In addition, since the sound generating device 30 is installed on the main body part 33, the sound generating device 30 is also exposed relative to the back cover 2. It can be understood that a gap can be left between the main body part 33 and the back cover 2 to facilitate assembly.

[0130] For example, the main body part 33 has a first surface 331 away from the display assembly 10, and the back cover 2 has a second surface 21 away from the display assembly 10, and the first surface 331 is flush with the second surface 21. The first surface 331 and the second surface 21 can be flush, that is, there is no large gap or transition in the thickness direction of the display device 100. For example, the first surface 331 and the second surface 21 can be flat surfaces, and the first surface 331 and the second surface 21 can be coplanar. At this time, the main body part 33 protrudes towards the back plate 1 to be flush with the back plate 1, thereby maximizing the use of the thickness space in the thickness direction of the display device 100, facilitating the setting of a larger first cavity 20b or making the display device 100 have a thinner size; in addition, the first surface 331 and the second surface 21 can form a substantially flat surface, making the back surface structure of the display device 100 more regular.

[0131] For example, the connecting part 32 of the fixing frame 3 can have a stepped structure, and part of the structure of the connecting part 32 can protrude towards the mounting hole 202, so that the main body part 33 can be located in the mounting hole 202. When the display device 100 includes a sealing member 6, the sealing member 6 can connect the connecting part 32 and the back cover 2.

[0132] For example, since the diaphragm 301 of the sound generating device 30 can be fixed to the communication hole 34, the diaphragm 301 can be substantially flush with the mounting hole 202.

[0133] For example, the mounting hole 202 can be a single hole, and the area of the mounting hole 202 can be greater than the area of the main body part 33 to accommodate the main body part 33. For example, the area of the mounting hole 202 can be more than twice the area of the diaphragm 301 of the sound generating device 30. At this time, it is beneficial to set a larger first cavity 20b, thereby facilitating the improvement of the sound quality of the display device 100.

[0134] It can be understood that compared with the display device 100 of the embodiment of FIG. 4, the mounting hole 202 of the present embodiment can be arranged at the position of the sound outlet hole 201 of the embodiment of FIG. 4, and the present embodiment does not need to arrange the sound outlet hole 201.

[0135] In the embodiment, the fixing frame 3 is used to expose the main body part 33 of the sound production device 30 relative to the back cover 2, and there is no fixing structure between the main body part 33 and the back cover 2. Therefore, the space occupied by the shell assembly 20 in the thickness direction of the display device 100 is reduced, the thickness of the display device 100 is further reduced, and the thinness of the display device 100 is facilitated, or the volume of the first cavity 20b is increased to improve the sound quality of the bass.

[0136] Please refer to FIG. 7, which is a schematic diagram of the internal structure of the display device 100 shown in FIG. 1 in some other embodiments. In the embodiment of FIG. 7, the display device 100 can include most of the technical features of the display device 100 in the embodiment of FIG. 4. The differences between the two embodiments are mainly described below, and most of the technical features of the two embodiments are not described in detail.

[0137] The main difference between the display device 100 in the embodiment of FIG. 7 and the display device 100 in the embodiment of FIG. 4 is the arrangement of the shell assembly 20 and the fixing frame 3.

[0138] In some embodiments, the back plate 1 includes a first part 12, a protruding part 13, and a second part 14. The protruding part 13 connects the first part 12 and the second part 14, surrounds the second part 14, surrounds the protruding part 13, and protrudes towards the side away from the display assembly 10. The protruding part 13 is connected to the fixing frame 3, and the second part 14 is arranged opposite to the sound production device 30.

[0139] In addition, the back cover 2 can be provided with a mounting hole 202 surrounding the main body part 33 of the fixing frame 3. The mounting hole 202 can be flush with the communication hole 34. The mounting hole 202 can be a single-hole structure. The mounting hole 202 can be flush with the communication hole 34, which means that the mounting hole 202 and the communication hole 34 overlap in the space in the thickness direction of the display device 100.

[0140] The specific arrangement of the protruding part 13 can refer to the related description in the embodiment of FIG. 5, and the specific arrangement of the mounting hole 202 and the fixing frame 3 can refer to the related description in the embodiment of FIG. 6. The embodiment will not be described again.

[0141] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and any combination of features in different embodiments is also within the protection scope of the present application, that is, the above-described multiple embodiments can be combined as needed.

[0142] It should be noted that all the above-mentioned drawings are exemplary diagrams of the present application, and do not represent the actual size of the product. The size ratio relationship between the components in the drawings is not a limitation on the actual product of the present application.

[0143] The above merely provides part of the embodiments and the implementation manners of the present application, and the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical scope disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A display device (100), characterized by The application relates to a sound production device, which comprises a display assembly (10), a housing assembly (20) and a sound production device (30), wherein the display assembly (10) is mounted on the housing assembly (20), and the sound production device (30) is mounted on the housing assembly (20). The housing assembly (20) comprises a back plate (1), a rear cover (2), a fixing frame (3) and a sealing member (6), the back plate (1) is fixedly connected with the rear cover (2), the back plate (1) and the rear cover (2) form a cover space (20a), at least part of the fixing frame (3) is located in the cover space (20a) and is fixedly connected with the back plate (1), and the sealing member (6) is fixedly connected between the fixing frame (3) and the back plate (1); the display assembly (10) is located on the side of the back plate (1) away from the rear cover (2). The fixing frame (3) is provided with a communication hole (34), the sound production device (30) is fixed on the fixing frame (3), a diaphragm (301) of the sound production device (30) is exposed through the communication hole (34), the sound production device (30), the fixing frame (3), the sealing member (6) and the back plate (1) form a first cavity (20b), and a rear cavity of the sound production device (30) comprises the first cavity (20b).

2. The display device (100) according to claim 1, characterized in that The fixing frame (3) comprises a main body part (33), the sound production device (30) is fixed on the main body part (33), and the communication hole (34) is located on the main body part (33). The rear cover (2) is provided with a mounting hole (202), and the main body part (33) is mounted in the mounting hole (202).

3. The display device (100) according to claim 2, characterized in that The main body part (33) comprises a first surface (331) arranged away from the display assembly (10), the rear cover (2) comprises a second surface (21) arranged away from the display assembly (10), and the first surface (331) is flush with the second surface (21).

4. The display device (100) according to claim 1, characterized in that All of the fixing frame (3) is located on the side of the rear cover (2) close to the back plate (1). The rear cover (2) is further provided with a sound outlet hole (201), and the diaphragm (301) of the sound production device (30) faces the sound outlet hole (201).

5. The display device (100) according to any of claims 1 to 4, characterized in that, The housing assembly (20) further comprises a vibration isolation member (7), the vibration isolation member (7) is elastic, the vibration isolation member (7) is connected between the fixing frame (3) and the rear cover (2) and surrounds the communication hole (34).

6. The display device (100) according to any one of claims 1 to 4, characterized in that The back plate (1) comprises a protruding part (13), the protruding part (13) protrudes towards the side away from the display assembly (10), the protruding part (13) is annular and is fixedly connected with the fixing frame (3).

7. The display device (100) according to claim 6, characterized in that The fixing frame (3) comprises a fixing part (31), a connecting part (32) and a main body part (33), the connecting part (32) is connected between the fixing part (31) and the main body part (33), the connecting part (32) surrounds the main body part (33) and is arranged to protrude towards the back plate (1), the fixing part (31) is fixed on the back plate (1), and the sound production device (30) is fixed on the main body part (33). The convex part (13) is fixedly connected with the fixed part (31) through the sealing part (6).

8. The display device (100) according to claim 6, characterized in that The back plate (1) is an integrally formed structural member, and / or the fixed frame (3) is an integrally formed structural member.

9. The display device (100) according to any of claims 1 to 4, characterized in that, The sealing part (6) is elastic.

10. The display device (100) according to claim 9, characterized in that The material of the sealing part (6) is foam or rubber.

11. The display device (100) according to claim 9, characterized in that The shell assembly (20) further comprises a fastener (4) and an elastic part (5), the elastic part (5) is fixed to the fixed frame (3), and the fastener (4) fixedly connects the elastic part (5) and the back plate (1).

12. The display device (100) according to any of claims 1 to 4, characterized in that The diaphragm (301) of the sound production device (30) is located in the communication hole (34).

13. The display device (100) according to any of claims 1 to 4, characterized in that, The vibration direction of the diaphragm (301) is perpendicular to the display assembly (10).

14. The display device (100) according to any of claims 1 to 4, characterized in that, The sound production device (30) further comprises a basket (302), a voice coil (303) and a magnetic circuit assembly (304). The basket (302) is mounted on the fixed frame (3), the diaphragm (301) is fixed to the basket (302), the magnetic circuit assembly (304) is fixed to the basket (302) and is oppositely arranged with the diaphragm (301), the magnetic circuit assembly (304) has a magnetic gap, and one end of the voice coil (303) is fixed to the diaphragm (301) and the other end is located in the magnetic gap of the magnetic circuit assembly (304).

Images