Display device

Abstract

The utility model provides a display device which comprises a back plate, a middle frame, a display panel and a lower front shell. The middle frame at least extends along the left edge and the right edge of the back plate, the main body part is located on the front side face of the back plate, and the front side face of the main body part does not exceed the front side face of the middle frame, so that when the display device is observed from the left side and the right side, the front side of the display device does not have a structure protruding out of the middle frame, the display device is thinner, and the satisfaction degree of a user is improved. And a connecting part is formed at the upper end of the main body part, is positioned behind the display panel and is fixed on the front side surface of the back plate. And the connecting part is arranged to fix the lower front shell below the display panel. The connecting part is located on the back face of the display panel, and the thickness of the display device cannot be increased due to the arrangement of the connecting part.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a display device. Background Art

[0002] A display device is a device used to display image information, generally including computer monitors, televisions, etc. Display devices can be seen everywhere in production, life and other fields, and have become an indispensable part of modern life.

[0003] Taking televisions as an example, with the development of television technology, users are paying more and more attention to the appearance of televisions, and the thinning of televisions themselves has become the mainstream trend.

[0004] In the related art, the front housing of the display device mostly adopts a bottom-hanging structure, which is not simple and beautiful enough, cannot reflect the ultra-thin feature of the TV, and does not meet the needs of users. Utility Model Content

[0005] The purpose of the present invention is to provide a display device, so as to make the display device thinner and improve user satisfaction.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] According to one aspect of the present invention, the present invention provides a display device, including a back plate, a middle frame, a display panel and a lower front shell; the middle frame is arranged at the edge of the back plate and extends at least along the two left and right edges of the back plate respectively; the display panel is fixed on the front side of the back plate; and the lower front shell is located on the front side of the back plate.

[0008] The lower front shell includes a main body and a connecting part; the connecting part is located on the rear side of the display panel and is fixed to the front side of the back plate; the bending part is connected to the lower end of the connecting part, and the bending part is bent in the direction away from the back plate; the main body is connected to the end of the bending part away from the connecting part and extends downward, and the main body is located below the display panel; the front side of the main body does not exceed the front side of the middle frame.

[0009] The above technical features have at least the following technical effects or advantages:

[0010] The middle frame extends at least along the two left and right edges of the back plate, the main body is located on the front side of the back plate, and the front side of the main body does not exceed the front side of the middle frame. Therefore, when the display device is viewed from the left and right sides, there is no structure on the front side of the display device that protrudes from the middle frame, thereby making the display device thinner and improving user satisfaction.

[0011] A connecting portion is formed at the upper end of the main body. The connecting portion is located behind the display panel and is fixed to the front side of the back plate. The connecting portion is provided to secure the lower front housing below the display panel. The connecting portion is located behind the display panel and does not increase the thickness of the display device.

[0012] In some embodiments of the present application, a protruding positioning column is formed on the front side of the back panel, and the height of the positioning column is not greater than the thickness of the connecting part; a long positioning hole is opened at the upper end of the connecting part, and the long positioning hole extends downward; the positioning column is engaged in the long positioning hole.

[0013] The above technical features have at least the following technical effects or advantages:

[0014] The lower front shell can move upward, driving the positioning long hole close to the positioning column, so that the positioning column moves along the positioning long hole, positioning the lower front shell and the back plate during installation.

[0015] In some embodiments of the present application, a first fixing hole is provided on the connecting portion, and the first fixing hole is a countersunk hole; a first connecting hole is provided on the back plate corresponding to the first fixing hole, so that the fastener can pass through the first connecting hole and the first fixing hole in sequence.

[0016] The above technical features have at least the following technical effects or advantages:

[0017] The first fixing hole and the first connecting hole are connected by a fastener to secure the lower front housing to the back plate. The first fixing hole is a countersunk hole, so that the end of the fastener passing through the first fixing hole facing the display panel is located in the first fixing hole, thereby ensuring that the installation of the fastener does not increase the thickness of the display device.

[0018] In some embodiments of the present application, the display device also includes a rear shell, which covers the back side of the back panel, and the left and right ends of the back panel respectively extend beyond the left and right sides of the rear shell, forming suspended sections on the left and right sides of the back panel; the ends of the suspended sections are connected to the middle frame; the left and right ends of the connecting portion are overlapped on the middle frame, and second fixing holes are provided at the left and right ends of the connecting portion, and the second fixing holes are countersunk holes; a second connecting hole is provided on the middle frame corresponding to the second fixing hole.

[0019] The above technical features have at least the following technical effects or advantages:

[0020] The left and right ends of the back panel extend beyond the left and right sides of the rear shell respectively, and overhanging sections are formed on the left and right sides of the back panel. When the user observes the left and right sides of the display device from the front, the display device appears thinner visually, thereby improving user satisfaction.

[0021] At the same time, when the left and right sides of the back panel have suspended sections, the left and right ends of the back panel have elasticity, and the structural strength of the left and right ends of the back panel is reduced. The left and right ends of the back panel form a suspended structure, resulting in a thinner thickness of the left and right sides of the back panel, and the structural strength of the left and right ends of the back panel is reduced.

[0022] Second fixing holes are provided at the left and right ends of the connecting portion, and corresponding second connecting holes are provided on the middle frame. The projections of the second fixing holes on the back panel are located outside the covering range of the rear housing. The second fixing holes are provided at the left and right ends of the connecting portion, and the middle frame is fixed to the left and right sides of the back panel. The second connecting holes are provided on the middle frame, which increases the reliability of the left and right ends of the front housing. This ensures that the left and right ends of the lower front housing and the back panel are connected together, thereby enhancing the structural strength of the left and right ends of the display device.

[0023] In some embodiments of the present application, the middle frame includes a fitting portion and a shielding portion; the fitting portion is located on the back of the display panel to support the display panel; the left and right ends of the connecting portion are respectively overlapped on the front side of the fitting portion; the second connecting hole is opened on the fitting portion; the shielding portion is located on the outside of the display panel to limit the display panel in the left and right directions.

[0024] The above technical features have at least the following technical effects or advantages:

[0025] The left and right ends of the upper connecting portion of the lower front shell are respectively overlapped on the fitting portion and fixed to the fitting portion through the second connecting holes on the fitting portion. The shielding portions of the upper middle frame on the left and right sides of the back plate limit the display panel in the left and right directions.

[0026] In some embodiments of the present application, an avoidance cavity is provided on the front side surface of the fitting portion, and the left and right ends of the connecting portion extend into the avoidance cavity respectively.

[0027] The above technical features have at least the following technical effects or advantages:

[0028] The display panel is attached to the front side of the attachment portion, and a relief cavity is defined on the front side of the attachment portion. The left and right ends of the display panel and the left and right ends of the connecting portion are attached to the front side of the attachment portion, respectively. The left and right ends of the connecting portion are located within the relief cavity, thereby ensuring that the connecting portion is located behind the display panel. The relief cavity is provided to accommodate the left and right ends of the connecting portion on the lower front housing, preventing interference between the left and right ends of the connecting portion and the display panel.

[0029] In some embodiments of the present application, a blocking portion is provided at one end of the lower front shell facing away from the connecting portion; the blocking portion extends in the left and right directions, and both ends extend to be flush with the left and right outer side surfaces of the middle frame, respectively, and the blocking portion is attached to the lower ends of the middle frame and the back panel.

[0030] The above technical features have at least the following technical effects or advantages:

[0031] The blocking piece fits between the lower ends of the middle frame and back panel, effectively protecting the bottom of the display. The blocking portion extends left and right, with both ends extending flush with the left and right outer sides of the middle frame to ensure the flatness of the left and right sides of the display.

[0032] In some embodiments of the present application, a downwardly protruding tongue is formed at the lower end of the middle frame, and a socket is formed on the upper end surface of the blocking portion; the tongue is downwardly engaged in the socket to limit the relative movement between the middle frame and the lower front shell in the left and right directions.

[0033] The above technical features have at least the following technical effects or advantages:

[0034] The tongue, inserted into the socket, restricts left-right relative movement between the middle frame and the lower front case. The tongue and socket arrangement also facilitates positioning of the lower front case and middle frame during installation, effectively preventing left-right swaying of the middle frame during display device installation, structural deformation of the lower end of the middle frame, and the formation of a gap between the lower end of the middle frame and the lower front case.

[0035] In some embodiments of the present application, a third connection hole is provided on the rear side surface of the blocking portion, and a third fixing hole is provided on the middle frame corresponding to the third connection hole.

[0036] The above technical features have at least the following technical effects or advantages:

[0037] The third fixing hole and the third connecting hole are opened correspondingly so that the bottom end of the middle frame and the lower front shell can be locked by fasteners, thereby ensuring the stability and firmness of the middle frame.

[0038] In some embodiments of the present application, sealing edges are formed at the left and right ends of the sealing portion respectively, and the upper end surfaces of the sealing edges are partially protruding upward or concave downward in the front-to-back direction to form a first step surface; the lower end surface of the middle frame is partially protruding downward or concave upward to form a second step surface; the second step surface can be fitted with the first step surface.

[0039] The above technical features have at least the following technical effects or advantages:

[0040] The fit between the first step surface of the blocking part and the second step surface of the lower end of the middle frame effectively reduces the gap between the lower end of the middle frame and the front shell, avoids the discomfort of watching movies from the front, and increases user comfort.

[0041] In some embodiments of the present application, a mesh cover is further included; the main body is provided with a sound outlet hole running through the front and back; the mesh cover is detachably fixed to the main body; the mesh cover is attached to the front side of the main body and covers the sound outlet; the mesh cover is provided with a running mesh hole.

[0042] The above technical features have at least the following technical effects and advantages:

[0043] The lower front housing has sound holes running through it. The grille fits snugly on the front side of the lower front housing, covering the holes. The grille has mesh holes running through it, allowing the display device to emit sound and dissipate heat through the front sound holes and mesh holes. The grille is detachably fixed to the lower front housing, making it easy to install and replace, allowing you to choose from a variety of grilles.

[0044] In some embodiments of the present application, the mesh cover includes a supporting frame and a mesh; the supporting frame is detachably connected to the front side of the lower front shell, the mesh is a sheet-like structure, and is fixed and attached to the front side of the supporting frame; the mesh holes are opened on the mesh.

[0045] The above technical features have at least the following technical effects and advantages:

[0046] The setting of the supporting frame drives the mesh to be fixed on the front side of the lower front shell, so as to facilitate the installation and fixation of the mesh with mesh holes on the display device.

[0047] In some embodiments of the present application, the display device also includes a rear shell, which covers the back side of the back panel, and the left and right ends of the back panel respectively extend beyond the left and right sides of the rear shell, forming suspended sections on the left and right sides of the back panel; the left and right ends of the support frame facing the back panel are respectively formed with protruding fixing columns, and the fixing columns are provided with internal threads; a through hole is provided on the back panel, and the through hole is located in the suspended section; the fixing column is passed through the through hole.

[0048] The above technical features have at least the following technical effects and advantages:

[0049] The back panel has a through-hole extending through it, located in the suspended section. The support frame has protruding fixing posts on the left and right ends facing the back panel. The fixing posts are inserted into the through-holes. Fasteners can be connected to the fixing posts and the through-holes on the back of the back panel in the suspended section, facilitating the removal and installation of the grille. This removal and installation of the grille does not require disassembly of the back cover or other components of the display device.

[0050] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0051] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0053] Figure 1 It is a structural schematic diagram of the display device of the utility model from one viewing angle.

[0054] Figure 2 It is a structural schematic diagram of the display device of the present invention from another perspective.

[0055] Figure 3 It is an exploded schematic diagram of the display device of the present utility model.

[0056] Figure 4 It is a structural schematic diagram of the back panel of the utility model from one perspective.

[0057] Figure 5 It is a structural schematic diagram of the back panel of the utility model from another perspective.

[0058] Figure 6 It is a schematic diagram of the middle frame of the utility model on the back plate.

[0059] Figure 7 It is a structural schematic diagram of the middle frame of the utility model.

[0060] Figure 8 This is a schematic diagram of the connection of the lower front shell of the utility model on the display device.

[0061] Figure 9 It is a structural schematic diagram of the lower front shell of the utility model from one perspective.

[0062] Figure 10 It is a structural schematic diagram of the lower front shell of the utility model from another perspective.

[0063] Figure 11 It is a schematic diagram of the connection of the mesh cover on the lower front shell of the utility model.

[0064] Figure 12 yes Figure 11 Schematic diagram of another view of the structure shown.

[0065] Figure 13 It is an exploded schematic diagram of the mesh cover of the utility model.

[0066] Figure 14 It is a structural schematic diagram of the utility model mesh cover from one viewing angle.

[0067] Figure 15 It is a structural schematic diagram of the utility model mesh cover from another perspective.

[0068] Figure 16 It is a structural schematic diagram of the support frame of the utility model.

[0069] The reference numerals are as follows: 100, back plate; 110, first connection hole; 111, nut column; 120, positioning column; 130, through hole; 200, display panel; 300, rear housing;

[0070] 400, lower front shell; 410, connecting portion; 411, positioning slot; 412, first fixing hole; 413, second fixing hole; 420, main body; 421, limiting hole; 422, avoidance hole; 430, blocking portion; 431, insertion hole; 432, third connecting hole; 433, blocking edge; 434, first step surface; 435, slot;

[0071] 500, middle frame; 510, fitting portion; 511, second connection hole; 520, shielding portion; 530, avoidance cavity; 540, inserting tongue; 550, third fixing hole; 560, second step surface;

[0072] 600, mesh cover; 610, supporting frame; 611, avoidance hole; 612, fixing column; 613, limiting column; 614, first latching protrusion; 615, second latching protrusion; 620, mesh. DETAILED DESCRIPTION

[0073] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0074] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0075] The present application is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0076] In the related art, the front housing of the display device mostly adopts a bottom-hanging structure, which is not simple and beautiful enough, cannot reflect the ultra-thin feature of the TV, and does not meet the needs of users. In order to solve the above technical problems, the present application provides a display device.

[0077] For ease of description and understanding, the display device is used as a reference. The direction facing the user is referred to as the front, and the direction facing away from the user is referred to as the rear. The side of the corresponding structure facing away from the user is referred to as the rear. The vertical direction is the up-down direction. The width of the display device is referred to as the left-right direction.

[0078] Figure 1 It is a structural schematic diagram of the display device of the utility model from one viewing angle. Figure 2 It is a structural schematic diagram of the display device of the present invention from another perspective.

[0079] See Figure 1 and Figure 2 This embodiment provides a display device, which primarily includes a back panel 100, a display panel 200 disposed on the front side of the back panel 100, a rear housing 300 disposed on the back side of the back panel 100, and a lower front housing 400 disposed at the lower front side of the back panel. The display device can be a television or a computer monitor, and the following description uses a television as an example.

[0080] The display panel 200 is disposed on the front side of the back plate 100 and is used to display image information for viewing by the user. The back plate 100 is the main support member of the display device and is disposed vertically.

[0081] There is a gap between the front side of the back plate 100 and the rear side of the display panel 200 . An optical film group and a light source are disposed in the gap. Light emitted by the light source passes through the optical film group and displays image information on the display panel 200 .

[0082] The light source, the optical film set and the display panel 200 are arranged in sequence from back to front. The light emitted by the light source passes through the optical film set and is projected onto the display panel 200. After the light is reflected by the display panel 200, the image information is displayed on the display panel 200.

[0083] The light source is used to emit light. The light source and the optical film group are arranged in parallel. The light source is located on the light incident side behind the optical film group to emit light toward the optical film group. The optical film group is located in front of the light source so that after the light passes through the optical film group, uniform white light is obtained on the light exit side in front of the optical film group.

[0084] In this embodiment, the light source is a structure formed by a plurality of light strips. The plurality of light strips are disposed on the front side of the back plate 100 and adhered to the front side surface of the back plate 100 .

[0085] The optical film assembly is positioned in front of the light source, spaced apart from the light source, to improve the uniformity and brightness of the light source. The optical film assembly includes a diffuser plate and multiple films arranged in sequence. The multiple films may include a brightness enhancement film and multiple prism sheets, or multiple prism sheets.

[0086] The display panel 200 is located in front of the optical film group. The light in the optical film group is transmitted forward to the display panel 200. The liquid crystal molecules in the display panel 200 are stimulated by the electric field and deflected, reducing the transmission rate of the light emitted by the optical film group to the liquid crystal panel, and then projecting the light into filters of different colors to form an image.

[0087] In this embodiment, the display panel 200 is an OLED screen, which has a smaller thickness than a traditional liquid crystal display screen. In some embodiments, the display panel 200 is a liquid crystal panel.

[0088] A rear housing 300 is disposed on the back of the back panel 100. A chamber is formed between the front of the rear housing 300 and the back of the back panel 100. The chamber houses electronic components such as a control board and a power board. These components are located within the enclosure of the rear housing 300, protecting the components within.

[0089] The control panel is mainly used to calculate the control system of the display device and output relevant operation instructions accordingly. The control panel has a large number of electronic components, which mainly transmit the operation instructions output by the control panel to the corresponding operation terminal.

[0090] The power board is separately provided or integrated on the control board and fixed on the back of the back plate 100. It is mainly used to provide driving voltage or stable working voltage to the control board and keep the output current stable when the circuit on the control board is working.

[0091] Electronic components may also include speakers and power strips. The speakers are located on the back of the back panel 100 and are primarily used to produce sounds corresponding to the interface displayed on the display panel 200. The power strip is equipped with multiple different types of interfaces for connecting to external devices, receiving signals from external devices or outputting signals to external devices. In some embodiments, the power strip is integrated into the control panel. Electronic components may include structures such as a remote control module or a voice module.

[0092] The rear shell 300 covers the back of the back plate 100; the left and right ends of the back plate extend to the left and right directions respectively and exceed the left and right sides of the rear shell, so that the left and right sides of the back of the back plate 100 form suspended sections.

[0093] The left and right ends of the back plate extend beyond the left and right ends of the rear shell, forming suspended sections at the left and right ends of the display device. When the user observes the left and right sides of the display device from the front, the display device appears thinner visually, thereby improving user satisfaction.

[0094] Figure 3 It is an exploded schematic diagram of the display device of the present invention. Figure 4 It is a structural schematic diagram of the back plate 100 of the present invention from one perspective. Figure 5 It is a structural diagram of the back plate 100 of the present invention from another perspective.

[0095] See Figures 1 to 5 The back plate 100 is arranged vertically and is the main support member of the display device. The electronic components and the back cover are fixed on the back plate 100 respectively.

[0096] In some embodiments, the back plate 100 is a structure made of plastic material, and the back plate 100 is formed by injection molding.

[0097] In this embodiment, the back plate 100 is a metal plate, such as a structure made of aluminum alloy or iron material. Compared with the plastic back plate 100, the metal back plate 100 has a smaller thickness while ensuring structural strength, thereby enabling the display device to be set thinner.

[0098] The back plate 100 is provided with a first connection hole 110 for connecting the lower front shell 400. A fastener passes through the back plate 100 and the first connection hole 110, thereby fixing the lower front shell 400 to the back plate 100.

[0099] In this embodiment, the fasteners are bolts or screws. The back panel 100 is a thin metal plate, which makes it difficult to provide threaded holes of sufficient thickness. In this embodiment, a nut standoff 111 is fixed to the back of the back panel 100. The nut standoff 111 corresponds to the first connection hole 110, and the fastener is threaded into the nut standoff 111 to secure the lower front housing 400 to the back panel 100.

[0100] In this embodiment, the nut column 111 is fixed to the back plate 100 by welding or gluing.

[0101] The corresponding portion of the lower front housing 400 is attached to the front side of the back plate 100, and the nut standoffs 111 are fixed to the back side of the back plate 100. The provision of the nut standoffs 111 does not affect the installation of the lower front housing 400 on the front side of the back plate 100. The fixing of the nut standoffs 111 to the back plate 100 does not increase the overall thickness of the display device.

[0102] In some embodiments, the nut column 111 is fixed to the front side of the back plate 100, the corresponding part of the lower front shell 400 is attached to the back plate 100, and the back plate 100 of the lower front shell 400 is provided with an avoidance groove at the nut column 111, and the nut column 111 is accommodated in the accommodating groove, so as to ensure that the lower front shell 400 is attached and fixed to the back plate 100. The setting of the nut column 111 will not cause the lower front shell 400 to be set forward relative to the back plate 100, and will not cause the thickness of the display device to increase.

[0103] In other embodiments, the back plate 100 is a structure made of plastic material, the back plate 100 has a preset thickness, the first connection hole 110 is opened on the back plate 100, and the inner peripheral wall of the first connection hole 110 is threaded to form a threaded hole.

[0104] The first fixing holes 412 are arranged in multiple groups, and the multiple groups of first fixing holes 412 are spaced apart in the vertical direction. Two adjacent first fixing holes 412 are staggered in the left-right direction to improve the shear stress resistance of the back plate 100. Each group of first fixing holes 412 includes multiple first fixing holes 412 spaced apart in the left-right direction.

[0105] In this embodiment, the first fixing holes 412 are arranged in two groups. In some embodiments, the first fixing holes 412 are arranged in one group, three groups, or more than three groups.

[0106] In this embodiment, a protruding positioning post 120 is formed on the front side of the back plate 100, and the positioning post 120 is used to position the lower front shell 400. The positioning post 120 extends into the lower front shell 400 to facilitate the positioning of the lower front shell 400 when it is installed and fixed.

[0107] In one embodiment, one positioning post 120 is provided. In some embodiments, a plurality of positioning posts 120 are provided at intervals along the left-right direction.

[0108] In this embodiment, the positioning post 120 is a cylindrical structure. In some embodiments, the periphery of the positioning post 120 can be a polygonal structure.

[0109] In some embodiments, the width of the rear shell is smaller than the width of the back plate, and the left and right ends of the back plate extend beyond the left and right sides of the rear shell respectively, forming suspended sections on the left and right sides of the back plate; the ends of the suspended sections are connected to the middle frame, so that the middle frame is connected to the back plate.

[0110] The back panel 100 is provided with a through-hole 130, located in the suspended section, so that the through-hole 130 is exposed to the suspended section. The through-hole 130 is located outside the rear housing 300. The corresponding structure of the lower front housing 400 is installed in the through-hole 130 and connected via a fastener. The fastener is located in the suspended section, so that the fastener in the through-hole 130 can be operated from outside the rear housing 300.

[0111] Figure 6 It is a schematic diagram of the middle frame of the utility model on the back plate. Figure 7 It is a structural schematic diagram of the middle frame of the utility model.

[0112] See Figures 1 to 7 The display device further includes a middle frame 500 , which is disposed at an edge of the back plate 100 , and the middle frame 500 extends at least along two left and right edges of the back plate 100 .

[0113] In this embodiment, the middle frame 500 extends along the left and right edges and the upper edge of the back plate 100. In some embodiments, the middle frame 500 extends only along the left and right edges of the back plate 100.

[0114] The middle frame 500 is fixed to the edge of the back panel 100 and is attached to the front side of the edge of the back panel 100. The middle frame 500 includes a bonding portion 510 and a shielding portion 520. The bonding portion 510 is fixed to the front side of the back panel 100, and the side of the bonding portion 510 facing away from the center of the back panel 100 protrudes forward to form the shielding portion 520. The edge of the display panel 200 is attached to the front side of the bonding portion 510, and the shielding portion 520 shields the edge of the display panel 200.

[0115] The bonding portion 510 is fixed and bonded to the front side of the edge of the back plate 100 so that the bonding portion 510 extends forward beyond the front end of the back plate 100. The rear side of the edge of the display panel 200 is bonded and fixed to the front side of the bonding portion 510.

[0116] In some embodiments, the edge of the back panel 100 is fixed to the edge of the fitting portion 510 by fasteners, and the fasteners are sequentially passed through the edge of the back panel 100 and the fitting portion 510 so that the fitting portion 510 is fixed to the back panel 100.

[0117] In other embodiments, the back plate 100 and the bonding portion 510 are connected as one body through the direction of adhesion.

[0118] The shielding portion 520 extends forward beyond the edge of the bonding portion 510, and there is a gap between the left and right edges of the display panel 200 and the shielding portion 520, so as to effectively prevent the shielding portion 520 from touching the display panel 200 during movement, thereby effectively reducing the probability of the display panel 200 being broken.

[0119] In some embodiments, the blocking portion is located outside the display panel, protrudes from the front side of the fitting portion, and limits the display panel in the left-right direction.

[0120] In this embodiment, the distance between the edge of the display panel 200 and the shielding portion 520 is 0.4 mm. In some embodiments, the distance between the edge of the display panel 200 and the shielding portion 520 is greater than 0.4 mm. In other embodiments, the distance between the edge of the display panel 200 and the shielding portion 520 is less than 0.4 mm.

[0121] The front side of the display panel 200 does not exceed the front side of the middle frame 500 , and the front side of the display panel 200 does not exceed the front side of the shielding portion 520 .

[0122] An avoidance cavity 530 is defined on the front side of the middle frame 500 for accommodating a corresponding portion of the lower front shell 400 , so that the portion of the lower front shell 400 on the middle frame 500 does not extend beyond the front side of the middle frame 500 .

[0123] In this embodiment, the avoidance cavity 530 is opened on the front side of the fitting portion 510, and the corresponding structures at the left and right ends of the lower front shell 400 are overlapped and fitted in the avoidance cavity.

[0124] A downwardly protruding tongue 540 is formed at the lower end of the middle frame 500 . The tongue 540 is used to extend downward and engage in the lower front shell 400 to position and limit the middle frame 500 and the lower front shell 400 .

[0125] In this embodiment, the inserting tongue 540 is formed at the lower end of the fitting portion 510. In some embodiments, the inserting tongue 540 is formed on the shielding portion 520.

[0126] The middle frame 500 is provided with a third fixing hole 550 for fixing to the lower front housing 400. The third fixing hole 550 is provided at the lower end of the middle frame 500 to integrally connect the lower end of the middle frame 500 and the lower front housing 400. This ensures that the structure of the middle frame 500 is stable after connection and prevents it from shaking or deforming.

[0127] In this embodiment, the third fixing hole 550 is formed on the inserting tongue 540 at the lower end of the middle frame 500 , and the second fixing hole 413 extends along the front-to-back direction.

[0128] In some embodiments, the third fixing hole 550 is a threaded hole for passing a screw or a bolt.

[0129] In this embodiment, the lower end surface of the middle frame 500 is partially convex downward or concave to form a second stepped surface 560. The second stepped surface 560 is in contact with the lower front housing 400. The staggered arrangement of the second stepped surface 560 effectively prevents light from leaking from the front end of the middle frame 500, thereby effectively preventing light leakage from the display device.

[0130] Figure 8 This is a schematic diagram of the connection of the lower front shell of the utility model on the display device. Figure 9 It is a structural schematic diagram of the lower front shell of the utility model from one perspective. Figure 10 It is a structural schematic diagram of the lower front shell of the utility model from another perspective.

[0131] See Figures 1 to 10 The lower front housing 400 is located on the front side of the back panel 100 and may include a connecting portion 410, a main portion 420, and a bent portion. The connecting portion 410 is located on the rear side of the display panel and is fixed to the front side of the back panel to drive the lower front housing to be fixed to the back panel.

[0132] In some embodiments, the lower end of the bent portion connecting the bent portion bends away from the back plate, is located below the display panel, and extends in a horizontal direction. The main body is connected to the end of the bent portion away from the connecting portion and extends downward. The main body 420 extends in a horizontal direction and can serve as the front appearance of the lower front housing 400.

[0133] The main body 420 is located below the display panel 200. The connecting portion 410 is located behind the main body 420. The front side of the display panel 200 and the front side of the main body 420 do not extend beyond the front side of the middle frame 500. This ensures that when the display device is viewed from the left or right, the front side of the display device does not protrude from the middle frame 500, making the display device thinner, improving its aesthetics, and increasing user satisfaction.

[0134] The upper end of the main body 410 is formed with an upwardly protruding connection portion 410. The connection portion 410 is located on the rear side of the display panel 200 and is fixed to the front side of the back plate 100. The provision of the connection portion 410 secures the main body 420 below the display panel 200. The provision of the connection portion 410 on the rear side of the display panel 200 does not increase the thickness of the display device.

[0135] In this embodiment, the front side of the connecting portion 410 is located behind the front side of the main body 420, so that the connecting portion 410 can be disposed behind the display panel 200. In some embodiments, the front side of the connecting portion 410 and the front side of the main body 420 are both located behind the display panel 200.

[0136] In this embodiment, a gap is provided between the front side of the connection portion 410 and the back plate 100 of the display panel 200 to effectively prevent collisions with the display panel 200 and protect the display panel 200. In some embodiments, the front side of the connection portion 410 is adhered to the back surface of the display panel 200 via a flexible pad or flexible adhesive to support the display panel 200.

[0137] In some embodiments, the main body is bent backward and extended to form the bent portion. The main body, the bent portion and the connecting portion are integrally formed and are formed by stamping.

[0138] In this embodiment, a protruding positioning post 120 is formed on the front side of the back panel 100. A positioning slot 411 is defined at the upper end of the connecting portion 410. The positioning slot 411 extends downward, and the positioning post 120 engages within the positioning slot 411. The positioning post 120 and the positioning slot 411 facilitate positioning of the lower front housing 400 during installation on the back panel 100.

[0139] In some embodiments, the long positioning hole 411 is formed at the upper end of the connecting portion 410 and extends downward, forming a long hole with an open upper end and extending vertically. When installing the lower front housing 400, the long positioning hole 411 is aligned with the positioning post 120, and the lower front housing 400 is moved upward so that the positioning post 120 extends into the long positioning hole 411, thereby limiting the left-right movement of the lower front housing 400 relative to the positioning post 120.

[0140] In other embodiments, the positioning post 120 abuts against the lower end of the positioning slot 411, creating a gap between the lower end of the display panel 200 and the main body 420, thereby effectively preventing collision between the lower end of the display panel 200 and the main body 420. This effectively prevents damage to the display panel 200 during transportation or movement of the display device.

[0141] In one embodiment, the gap between the lower end of the display panel 200 and the main body 420 is 0.4-0.7 mm. In other embodiments, the gap between the lower end of the display panel 200 and the main body 420 is greater than 0.7 mm or less than 0.4 mm.

[0142] In this embodiment, a first fixing hole 412 is defined in the connecting portion 410, and the first fixing hole 412 is a countersunk hole. A first connecting hole 110 is defined in the back panel 100 corresponding to the first fixing hole 412, so that a fastener can pass through the first connecting hole 110 and the fixing hole in sequence to secure the lower front housing 400 to the back panel 100. The countersunk first fixing hole 412 allows the end of the fastener passing through the first fixing hole 412 toward the display panel 200 to be located within the first fixing hole 412, thereby ensuring that the provision of the fastener does not increase the thickness of the display device.

[0143] In some embodiments, the first fixing holes 412 are provided in multiple groups, with the groups of first fixing holes 412 spaced apart in the vertical direction. Two adjacent first fixing holes 412 are staggered in the left-right direction, and the first connection holes 110 correspond to the first fixing holes 412 one-to-one. The staggered arrangement between the first fixing holes and the second fixing holes effectively enhances the shear stress resistance of the lower front housing 400 and the back panel 100.

[0144] In some embodiments, the left and right ends of the connecting portion 410 are overlapped on the middle frame 500, and the left and right ends of the connecting portion 410 are accommodated in the avoidance cavity 530 of the middle frame 500, so that the front side surface of the connecting portion 410 does not exceed the front side surface of the fitting portion 510 on the middle frame 500, effectively avoiding interference between the connecting portion 410 and the display device.

[0145] For example, second fixing holes 413 are defined at the left and right ends of the connecting portion 410, and second connecting holes 511 are defined on the middle frame 500 corresponding to the second fixing holes 413. The projections of the second fixing holes 413 on the back panel 100 are located outside the covering range of the rear housing 300. The left and right ends of the back panel 100 extend beyond the left and right ends of the display rear housing 300, resulting in suspended sections on the left and right ends of the back panel 100. This results in a thinner thickness on the left and right sides of the back panel 100, and reduces the structural strength of the left and right ends of the back panel 100.

[0146] The fitting portion of the middle frame is located on the back of the display panel to support the display panel; the left and right ends of the connecting portion are respectively overlapped on the front side of the fitting portion, and the second connecting hole is opened on the fitting portion to fix the left and right ends of the connecting portion on the fitting portion of the middle frame respectively.

[0147] Second fixing holes 413 are defined at the left and right ends of the connecting portion 410, and second connecting holes 511 are defined on the middle frame 500 corresponding to these holes. The projections of the second fixing holes 413 on the back panel 100 are located outside the covering range of the rear housing 300. The second fixing holes 413 are defined at the left and right ends of the connecting portion 410, and the middle frame 500 is fixed to the left and right sides of the back panel 100. The second connecting holes 511 are defined on the middle frame 500, thereby increasing the reliability of securing the left and right ends of the front housing. This ensures that the left and right ends of the lower front housing 400 and the back panel 100 are connected together, thereby enhancing the structural strength of the left and right ends of the display device.

[0148] The second fixing hole 413 is a countersunk hole, so that the fastener passing through the second fixing hole 413 will not interfere with the display panel 200 and will not increase the thickness of the display device in the front-to-back direction.

[0149] A blocking portion 430 is provided at one end of the main body 420 facing away from the connecting portion 410. The blocking portion 430 is formed at the lower end of the main body 420. The blocking portion 430 extends beyond the main body 420 in the front-to-back direction. The blocking portion 430 extends in the left-right direction, with both ends extending to be flush with the left and right outer side surfaces of the middle frame 500. The blocking portion 430 is attached to the lower ends of the middle frame 500 and the back panel 100 to block the lower end of the middle frame 500, thereby effectively protecting and sealing the bottom end of the display device. The blocking portion 430 extends in the left-right direction, with both ends extending to be flush with the left and right outer side surfaces of the middle frame 500 to ensure the flatness of the left and right sides of the display device.

[0150] The blocking portion 430 is attached to the lower ends of the middle frame 500 and the back plate 100 to limit the upward movement of the lower front shell 400, thereby maintaining the interval between the main body 420 at the upper end of the lower front shell 400 and the display panel 200, so as to effectively avoid bumps on the display panel 200.

[0151] In this embodiment, a downwardly protruding tongue 540 is formed at the lower end of the middle frame 500, and a socket 431 is defined on the upper end surface of the blocking portion 430. The tongue 540 engages downwardly within the socket 431, restricting left-right relative movement between the middle frame 500 and the lower front case 400. The arrangement of the tongue 540 and the socket 431 also facilitates positioning of the lower front case 400 and the middle frame 500 during installation, effectively preventing left-right swaying of the middle frame 500 during display device installation, structural deformation of the lower end of the middle frame 500, and the formation of a gap between the lower end of the middle frame 500 and the lower front case 400, thereby ensuring the stability of the middle frame 500 and the lower front case 400.

[0152] A third connection hole 432 is defined on the rear side of the blocking portion 430, and a third fixing hole 550 is defined on the middle frame 500 corresponding to the third connection hole 432. The corresponding third fixing hole 550 and the third connection hole 432 enable fasteners to securely fasten the bottom end of the middle frame 500 to the lower front housing 400, ensuring a secure and stable attachment of the middle frame 500.

[0153] Based on the above structure, when installing the lower front housing 400, the long positioning holes 411 on the lower front housing 400 and the positioning posts 120 are aligned. The lower front housing 400 is moved upward, allowing the positioning posts 120 to extend into the long positioning holes 411 and the insertion tongues 540 to extend into the insertion holes 431. After the lower front housing 400 is moved upward to a predetermined position, the blocking portion 430 abuts against the lower end of the middle frame 500. Fasteners are inserted through the first fixing holes 412 and the first connecting holes 110 to secure the lower front housing 400 to the back panel 100. Fasteners are also inserted through the second fixing and second connecting holes to secure the lower front housing 400 to the middle frame 500.

[0154] The left and right ends of the blocking portion 430 each have a blocking edge 433. The upper end surfaces of the blocking edges 433 are partially convex or concave in the front-to-back direction, forming a first stepped surface 434. The lower end surface of the middle frame 500 also has a partially convex or concave second stepped surface 560, which mates with the first stepped surface 434. The mate between the first stepped surface 434 of the blocking portion 430 and the second stepped surface 560 at the lower end of the middle frame 500 effectively reduces the gap between the lower end of the middle frame 500 and the front housing, preventing discomfort when viewing from the front and enhancing user comfort.

[0155] Figure 11 It is a schematic diagram of the connection of the mesh cover on the lower front shell of the utility model. Figure 12 yes Figure 11 Schematic diagram of another view of the structure shown. Figure 13 It is an exploded schematic diagram of the mesh cover of the utility model. Figure 14 It is a structural schematic diagram of the utility model mesh cover from one viewing angle. Figure 15 It is a structural schematic diagram of the utility model mesh cover from another perspective. Figure 16 It is a structural schematic diagram of the support frame of the utility model.

[0156] See Figures 1 to 16 The display device further includes a mesh cover 600, which is fixed to the main body 420. The mesh cover 600 can be a part of the lower front shell 400 or a separate structure.

[0157] In some embodiments of the present application, the main body 420 is provided with a sound hole extending from front to back. The mesh cover 600 is attached to the front side of the main body 420 and covers the sound hole. The mesh cover 600 has mesh holes extending therethrough. The sound hole and mesh holes on the display device can be used to generate sound, pick up sound, or dissipate heat. The mesh cover 600 also protects the sound hole, effectively preventing dust and debris from entering the display device.

[0158] In this embodiment, the mesh cover 600 is detachably connected to the main body 420 to facilitate replacement of the mesh cover 600. When the mesh cover 600 is damaged or dirty, the mesh cover 600 can be replaced.

[0159] The mesh cover is attached to the front side of the main body 420 , and the front side of the mesh cover does not exceed the front side of the middle frame, so that the provision of the mesh cover does not increase the thickness of the display device.

[0160] In this embodiment, the mesh cover 600 includes a support frame 610 and a mesh 620; the mesh 620 is fixed on the support frame 610, and the support frame 610 is detachably connected to the front side of the main body 420, driving the mesh 620 to be set on the front side of the main body 420.

[0161] The mesh 620 is a sheet-like structure that is fixed and attached to the front side of the support frame 610. In this embodiment, the mesh 620 is glued to the front side of the support frame 610 to facilitate installation of the mesh 620 on the support frame 610. In some embodiments, the mesh 620 is fixed to the support frame 610 using fasteners or other means. In other embodiments, the mesh 620 is fixed to the support frame 610 by snapping the edges.

[0162] In this embodiment, mesh holes are formed on the mesh sheet 620, and avoidance holes 611 are formed on the support frame 610 corresponding to the mesh holes on the mesh sheet 620. The avoidance holes 611 are provided corresponding to the sound outlet holes and the mesh holes.

[0163] In this embodiment, the support frame 610 is also a sheet-like structure, so that the support frame 610 can be attached to the front side of the main body 420 .

[0164] In other embodiments, the support frame 610 may be of any structure, as long as the support fixture is provided with a front-to-back through-hole 611 .

[0165] The support frame 610 has protruding fixing posts 612 formed on the left and right ends of the side facing the back panel 100. The fixing posts 612 are provided with internal threads. The back panel 100 is provided with through-holes 130 extending therethrough, located in the suspended sections on the left and right sides of the back panel 100. The fixing posts 612 are inserted into the through-holes 130 so that they can be connected to the fixing posts 612 via fasteners in the suspended section on the back of the back panel 100. The fasteners connecting the fixing posts 612 are located in the suspended section outside the rear housing 300, facilitating installation and removal of the support frame 610. The mesh cover 600 can be removed and installed without disassembling any other structures on the display device, such as the rear housing 300.

[0166] The back plate 100 is a metal plate supported structure. To make the display device thinner at the front and back, the metal back plate 100 is relatively thin, making it difficult to provide threads on the metal back plate 100. In this embodiment, internal threads are provided on the fixing posts 612 of the support frame 610 to secure the support frame 610.

[0167] The rod of the fastener passing through the fixing column 612 is passed through the fixing hole, and the head of the fastener is fitted on the back side of the back plate 100 , so that the mesh cover 600 is locked on the lower front shell 400 and the back plate 100 .

[0168] The support frame 610 has protruding retaining posts 613 formed on the side facing the back panel 100. The lower front housing 400 has retaining holes 421 defined therein. The retaining posts 613 pass through the retaining holes 421 to position the support frame 610 on the lower front housing 400. This allows for quick positioning of the support frame 610 on the lower front housing 400, facilitating the rapid installation of the grille 600.

[0169] A plurality of limiting posts 613 are arranged at intervals along the left-right direction. The plurality of limiting posts 613 make the positioning of the support frame 610 more reliable.

[0170] In some embodiments, the limiting post 613 is disposed on the front side of the lower front housing 400 . The limiting hole 421 is formed on the supporting frame 610 .

[0171] In this embodiment, a rearwardly protruding first latch 614 is formed on the upper end of the support frame 610, facing the back panel 100. The first latch 614 can overlap the upper end or bent portion of the lower front housing 400, thereby more reliably securing the first latch 614 to the lower front housing 400 and effectively preventing the mesh cover 600 from tilting relative to the lower front housing 400. The first latch 614 is located between the lower end of the display panel 200 and the upper end of the lower front housing 400.

[0172] In some embodiments, the first locking protrusions 614 extend continuously along the left-right direction. In other embodiments, the first locking protrusions 614 are spaced apart along the left-right direction.

[0173] In this embodiment, the first latching protrusion 614 is located between the lower end of the display panel 200 and the upper end of the lower front housing 400. The upper end of the first latching protrusion 614 is adjacent to the lower end of the display panel 200, ensuring that there is only a small gap at the lower end of the display panel 200. This ensures that the user cannot observe the gap when viewing the display device, so that the display device appears to be a single unit.

[0174] There is a gap between the upper end of the first engagement and the lower end of the display panel 200, so as to effectively avoid contact between the first engagement protrusion 614 and the lower end of the display panel 200, and avoid contact between the lower end of the display panel 200 and the first engagement protrusion 614, thereby effectively avoiding damage to the display panel 200 during movement.

[0175] The gap between the lower end of the display panel 200 and the first locking protrusion 614 is 0.4-0.7 mm. In other embodiments, the gap between the lower end of the display panel 200 and the first locking protrusion 614 is greater than 0.7 mm or less than 0.4 mm.

[0176] A rearward-projecting second latch 615 is formed on the side of the support frame 610 facing the back panel 100, and a latch slot 435 is formed on the front side of the lower front housing 400. The second latch 615 engages within the latch slot 435. The engagement of the second latch 615 within the latch slot 435 on the lower front housing 400 further secures and stabilizes the grille 600 on the lower front housing 400.

[0177] In this embodiment, the support frame 610 is attached to the main body 420 of the lower front housing 400. The slot 435 is formed between the lower end of the main body 420 and the blocking portion 430.

[0178] In some embodiments, the second locking protrusions 615 extend continuously along the left-right direction. In other embodiments, the second locking protrusions 615 are spaced apart along the left-right direction.

[0179] The mesh 620 is fixed to the front side of the support frame 610 and can be moved and installed with the support frame 610. When the support frame 610 moves backward, the limiting posts 613 on the rear side of the support frame 610 pass through the limiting holes 421 of the lower front shell 400. This also allows the fixing posts 612 on the rear side of the support frame 610 to pass through the through-holes 130. The back of the back panel 100 is fixed with fasteners that pass through the fixing posts 612, thereby securing the mesh cover 600.

[0180] The main body is provided with an escape hole 422 which passes through the main body from front to back, and the fixing post 612 passes through the escape hole 422. The fixing post passes through the escape hole and can be inserted into the through hole 130 on the back plate.

[0181] During the process of the mesh cover 600 moving backward, the first latching protrusion 614 and the second latching protrusion 615 are respectively engaged with the lower front shell 400. The facing surfaces of the first latching protrusion 614 and the second latching protrusion 615 are clamped on the lower front shell 400.

[0182] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0183] In this application, unless otherwise expressly specified or limited, terms such as "assembled" and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal communication between two components; or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. Throughout this specification, references to terms such as "some embodiments" and "exemplarily" indicate that the specific features, structures, materials, or characteristics described in connection with such embodiments or examples are included in at least one embodiment or example of this application. In this specification, the schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, as well as features from different embodiments or examples, as long as they do not conflict with each other.

[0184] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent application.

Claims

1. A display device, characterized in that: include: Back panel; a middle frame, disposed at an edge of the back plate and extending at least along two left and right edges of the back plate; A display panel fixed to the front side of the back plate; The lower front shell is located on the front side of the back plate; the lower front shell includes: a connecting portion, which is located on the rear side of the display panel and fixed to the front side of the back plate; a bending portion connected to a lower end of the connecting portion, wherein the bending portion bends in a direction away from the back plate; The main body is connected to one end of the bending portion away from the connecting portion and extends downward. The main body is located below the display panel. The front side of the main body does not exceed the front side of the middle frame.

2. The display device according to claim 1, wherein A protruding positioning column is formed on the front side of the back plate, and the height of the positioning column is not greater than the thickness of the connecting part; a long positioning hole is formed at the upper end of the connecting part, and the long positioning hole extends downward; the positioning column is engaged in the long positioning hole.

3. The display device according to claim 2, wherein: A first fixing hole is provided on the connecting portion, and the first fixing hole is a countersunk hole; a first connecting hole is provided on the back plate corresponding to the first fixing hole, so that a fastener can pass through the first connecting hole and the first fixing hole in sequence.

4. The display device according to claim 1, wherein The display device further includes: a rear shell, the rear shell covering the back of the back plate, the width of the rear shell being smaller than the width of the back plate; The left and right ends of the back plate extend beyond the left and right sides of the rear shell, respectively, to form suspended sections on the left and right sides of the back plate; the ends of the suspended sections are connected to the middle frame; The left and right ends of the connecting portion are overlapped on the middle frame. The left and right ends of the connecting portion are provided with second fixing holes, which are countersunk holes. The middle frame is provided with second connecting holes corresponding to the second fixing holes.

5. The display device according to claim 4, wherein: The middle frame includes: The fitting portion is located on the back of the display panel to support the display panel; the left and right ends of the connecting portion are respectively overlapped on the front side of the fitting portion; the second connecting hole is opened on the fitting portion; The shielding portion is located outside the display panel to limit the display panel in the left-right direction.

6. The display device according to claim 5, wherein: An avoidance cavity is provided on the front side surface of the fitting portion, and the left and right ends of the connecting portion are respectively accommodated in the avoidance cavity.

7. The display device according to claim 1, wherein A blocking portion is provided at one end of the main body facing away from the connecting portion; the blocking portion extends in the left and right directions, and both ends extend to be flush with the left and right outer sides of the middle frame respectively, and the blocking portion is attached to the lower ends of the middle frame and the back plate.

8. The display device according to claim 7, wherein: The lower end of the middle frame is formed with a downwardly protruding plug tongue, and the upper end surface of the blocking portion is formed with a plug hole; The inserting tongue is engaged downwardly in the inserting hole to limit the relative movement between the middle frame and the lower front shell in the left-right direction.

9. The display device according to claim 8, wherein A third connecting hole is provided on the rear side surface of the blocking portion; A third fixing hole is provided on the middle frame corresponding to the third connecting hole.

10. The display device according to claim 7, wherein: The left and right ends of the blocking portion are respectively formed with blocking edges, and the upper end surfaces of the blocking edges are partially convex upward or concave downward in the front-to-back direction to form a first step surface; The lower end surface of the middle frame is partially convex downward or concave upward to form a second step surface; the second step surface can be fitted with the first step surface.

11. The display device according to claim 1, wherein Also includes a mesh cover; The main body is provided with a sound outlet hole running through the front and back; The mesh cover is detachably fixed to the main body; the mesh cover is attached to the front side of the main body and covers the sound outlet; and mesh holes are provided through the mesh cover.

12. The display device according to claim 11, wherein The mesh cover includes a supporting frame and a mesh; The support frame is detachably connected to the front side of the main body, the mesh is a sheet-like structure, and the mesh cover is fixed and attached to the front side of the support frame; The mesh sheet is provided with mesh holes.

13. The display device according to claim 12, wherein: The display device further includes a rear housing; The rear shell is covered on the back of the back plate, and the left and right ends of the back plate extend beyond the left and right sides of the rear shell, thereby forming suspended sections on the left and right sides of the back plate; The left and right ends of the support frame facing the back plate are respectively formed with protruding fixing columns, and the fixing columns are provided with internal threads; the main body is provided with avoidance holes running through the front and back, and the fixing columns pass through the avoidance holes; A through hole is provided on the back plate, and the through hole is located in the suspended section; the fixing column is passed through the through hole.

14. The display device according to claim 12, wherein: A first latching protrusion protruding backward is formed on the upper end of the support frame facing the back plate; The first latching protrusion can overlap the upper end of the main body or the bent portion.

15. The display device according to claim 12, wherein: A second latching protrusion protruding backward is formed on a side of the support frame facing the back plate; A card slot is provided on the front side of the main body; the second card protrusion is engaged in the card slot.

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