Display device

Abstract

The invention provides a display device. The display device comprises a back plate, an electronic component and a rear cover, the rear cover comprises a middle rear shell and left and right rear shells arranged on the left and right sides of the middle rear shell; the middle rear shell is attached to the back plate in an overturning mode, so that the protruding structures on the middle rear shell cannot interfere with the protruding structures on the back plate and the electronic component. Furthermore, the left and right rear shells are detachably connected to the left and right sides of the back plate, and one ends, facing the middle rear shell, of the left and right rear shells are lapped and pressed on the left and right edges of the middle rear shell, so that the middle rear shell is pressed on the back surface of the back plate. Therefore, the middle rear shell is fixed on the back surface of the back plate by pressing the middle rear shell through the left rear shell and the right rear shell and clamping the positioning clamping grooves on the positioning clamping columns, so that the use of rear cover screws is reduced integrally or screws are not needed, and the cost is saved. The positioning clamping columns are matched with the positioning clamping grooves, so that repeated disassembly and clamping are facilitated, and the rear cover can be conveniently disassembled and assembled on the back plate for many times.

Description

Technical Field

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

[0002] With the development of society, labor costs are increasing year by year, and the proportion of product labor costs in the entire production chain is getting heavier. How to reduce labor costs, improve production efficiency, and ensure production consistency is being valued by more and more companies; especially in the home appliance industry, where competition is more intense, how to better ensure quality and quantity and reduce costs has become an important direction for the survival and development of home appliance companies.

[0003] The field of television and display is developing towards ultra-thin, narrow frame, borderless, high brightness, high contrast, and low energy consumption. At the same time, the internal structure is required to be more compact, and the appearance pursues an overall sense of coordination. Taking the TV as an example, the back shell, as an important safety component of the TV, is set at the back of the TV and wraps the circuit components inside the machine, playing a role of safety isolation and protection. The back shell is generally fixed to the back panel of the TV screen with screws, and a certain number of screw fixing sink holes and corresponding screws will be left around the back shell. With the deepening of the 360° no-dead-angle appearance design concept of the TV, the back shell located at the back of the TV, which has not received much attention in the past, has become more and more important. The screw-free solution for the back shell is an important development direction in the field of televisions.

[0004] In the existing related technologies, most display devices achieve screw-free fixing of the back cover mainly through buckles or variants of buckles. The rigid connection of the buckle has the advantages of reliable connection and easy installation. However, since the buckle is a rigid connection and has no unlocking structure, in the scenario where the back cover needs to be disassembled for maintenance, after-sales, etc., the rigidly connected buckle is easy to break, resulting in the back cover cannot be used again. Summary of the invention

[0005] An object of the present invention is to provide a display device to facilitate the removal and installation of a middle rear housing on a back plate and save costs.

[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, there is provided a display device, comprising a back plate, an electronic component, and a back cover; a display panel for displaying image information is arranged on the front side of the back plate; a plurality of positioning posts protruding backwards are arranged on the upper side of the back of the back plate; a protrusion is formed at the rear end of the positioning posts along its own radial outward protrusion; the electronic component is fixed on the back of the back plate; the electronic component is electrically connected to the display panel; a plurality of protruding structures protruding backwards are formed on the back of the electronic component; the back cover comprises a middle rear shell, and left and right rear shells arranged on the left and right sides of the middle rear shell; the middle rear shell is used to cover the back of the back plate and cover the electronic component; a plurality of protruding structures are formed on the front side of the middle rear shell, the protruding structures are used to enhance the structural strength of the middle rear shell, and are used to communicate with the electronic component on the back plate. The cam is adapted to engage with the rear panel and to engage with the rear panel when the cam is in a position to move relative to the rear panel.

[0008] In some embodiments of the present application, both left and right sides of the middle rear shell are protruded to form steps; the left and right rear shells overlap and press fit on the steps at one end facing the middle rear shell.

[0009] In some embodiments of the present application, a plurality of limit posts protruding backwards are respectively provided on the sky side and the left and right sides of the back side of the back panel, and the limit posts are located on the left and right sides of the positioning posts; the rear end of the limit post is radially outwardly protruded to form a raised portion; a raised limit portion is formed on the front side surfaces of the left and right rear shells; a limit slot with an open upper end is provided on the limit portion; the limit slot can be upwardly engaged in the limit post to limit the left and right and upward movement of the limit portion, and enable the limit portion to be limited between the back side of the back panel and the raised portion along the front-to-back direction.

[0010] In some embodiments of the present application, some of the limiting portions are arranged on the side of the left and right rear shells facing away from the middle rear shell, and are spaced apart in the up and down directions; some of the limiting posts are arranged on the left and right edges of the back plate, and are spaced apart vertically; the steps extend up and down, and the rear side surfaces of the steps are on the same plane, so that the left and right rear shells can slide up and down along the steps at the parts overlapping the steps.

[0011] In some embodiments of the present application, a protruding limiting structure is formed on the left and right rear shells toward the side of the middle rear shell, and the limiting structure is engaged with the middle rear shell or the back plate so that the left and right rear shells are pressed against the middle rear shell toward the side of the middle rear shell.

[0012] In some embodiments of the present application, limit clamping holes are opened on the left and right side walls of the middle rear shell, and the limit clamping holes extend in the up-down direction; the left and right rear shells are attached to the middle rear shell on one side facing the middle rear shell; and the left and right rear shells are formed with protruding limit clamping protrusions on one side facing the middle rear shell to form the limit structure, and the limit clamping protrusions can slide in the up-down direction in the limit clamping hole, and be limited in the front-back direction in the limit clamping hole.

[0013] In some embodiments of the present application, the limit clamping hole includes a penetration section and a limit section extending upward from the upper end of the penetration section in the direction from bottom to top; the hole cavity of the penetration section extends backward beyond the limit section; the limit clamping protrusion includes an extension section connected to the left and right rear shells, and a locking section bent backward and extended from one end of the extension section away from the corresponding left and right rear shells; the locking section can pass through the penetration section, and when the extension section is penetrated in the limit section, the locking section passes through the left and right side walls of the middle rear shell and overlaps the left and right side walls of the middle rear shell.

[0014] In some embodiments of the present application, a reinforcing plate is fixedly connected to the back side of the back plate, and the reinforcing plate is arranged at the overlap between the middle rear shell and the left and right rear shells in the left and right directions, and the reinforcing plate is located in front of the middle rear shell; a snap-fit ​​position is provided on the reinforcing plate, and the limiting structure is snap-fitted to the snap-fit ​​position.

[0015] In some embodiments of the present application, a locking hole is provided on the reinforcing plate; the limiting structure is a locking protrusion protruding and extending from the side of the left and right rear shells toward the middle rear shell; an avoidance hole is provided on the side of the middle rear shell facing the left and right rear shells corresponding to the locking hole, the locking protrusion is passed through the avoidance hole and can slide up and down in the avoidance hole; the locking protrusion passes through the locking hole along its own extension direction and is limited in the locking hole.

[0016] In some embodiments of the present application, a locking boss is provided on the reinforcing plate, and a rear end of the locking boss protrudes radially outward to form a convex portion; the limiting structure is a locking portion protruding from the left and right rear shells toward the side of the middle rear shell; an avoidance hole is provided on the side of the middle rear shell facing the left and right rear shells corresponding to the locking portion, and the locking portion is inserted into the avoidance hole and can slide up and down in the avoidance hole; a locking slot with an upper end opening is provided on the locking portion; the locking slot can be engaged upwardly on the locking boss to limit the left and right and upward movement of the locking portion, and the locking portion is limited in the front-to-back direction between the back side of the reinforcing plate and the convex portion.

[0017] It can be seen from the above technical solution that the present invention has at least the following advantages and positive effects:

[0018] In the present invention, a plurality of positioning posts protruding backward are arranged on the sky side of the back of the back plate; the rear end of the positioning post protrudes outward along its own radial direction to form a protruding portion. A protruding positioning portion is formed on the front side of the middle rear shell; a positioning slot with an upper end opening is provided on the positioning portion, and the positioning slot can be engaged with the positioning post upward to limit the left and right and upward movement of the positioning portion, and the positioning portion is limited between the back of the back plate and the protruding portion along the front and rear direction. The positioning portion is arranged on the sky side of the middle rear shell, so that after the positioning slot is engaged with the positioning post, the middle rear shell can be flipped forward and backward around the connection between the positioning slot and the positioning post, so that when the middle rear shell is installed, after the positioning slot is engaged with the positioning post, the middle rear shell is flipped relative to the back plate, and the middle rear shell body is attached to the back plate. The middle rear shell is attached to the back plate by flipping, so that the protruding structure on the middle rear shell does not interfere with the protruding structure on the back plate and the electronic component.

[0019] Furthermore, the left and right rear shells are detachably connected to the left and right sides of the back plate, and the left and right rear shells overlap and press the left and right edges of the middle rear shell toward one end of the middle rear shell, so that the middle rear shell is pressed onto the back of the back plate. Thus, the middle rear shell is fixed to the back of the back plate by pressing the left and right rear shells onto the middle rear shell, and the positioning slots are snapped onto the positioning posts, so that the use of screws for the rear cover is reduced as a whole or no screws are needed, so as to save costs. The cooperation of the positioning posts and the positioning slots facilitates repeated disassembly and snapping, so as to facilitate multiple disassembly and assembly of the rear cover on the back plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a viewing angle of the display device of the present invention.

[0021] Figure 2 It is a schematic diagram of the back structure of the display device of the present invention.

[0022] Figure 3It is a schematic diagram of the exploded structure of the display device of the present invention.

[0023] Figure 4 It is a structural schematic diagram of the back plate of the present invention.

[0024] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0025] Figure 6 yes Figure 4 Enlarged view of point B in the middle.

[0026] Figure 7 It is a schematic diagram of the exploded structure of a rear cover embodiment of the present invention.

[0027] Figure 8 It is a structural schematic diagram of a first embodiment of the rear shell of the present invention from one viewing angle.

[0028] Fig. 9 yes Figure 8 Enlarged view of point C in the middle.

[0029] Fig.10 It is a structural schematic diagram of the first embodiment of the rear shell in another viewing angle of the present invention.

[0030] Fig.11 yes Fig.10 Enlarged view of point D in the middle.

[0031] Fig.12 It is a schematic diagram of the connection of the rear shell to the back plate in the present invention.

[0032] Fig.13 It is a structural schematic diagram of the left and right rear shells of the first embodiment of the present invention from one viewing angle.

[0033] Fig.14 It is a structural schematic diagram of the first embodiment of the left and right rear shells of the present invention from another viewing angle.

[0034] Fig.15 yes Fig.14 Enlarged view of point E in the middle.

[0035] Fig.16 It is a structural schematic diagram of the reinforcing plate of the present invention.

[0036] Fig.17 It is a schematic diagram of the structure of the reinforcing plate on the back plate 100 of the present invention.

[0037] Fig.18 It is a schematic diagram of the structure of the reinforcing plate and the middle rear shell on the back plate of the present invention.

[0038] Fig.19 yes Fig.18 Enlarged view of point F in the middle.

[0039] Fig. 20 It is a structural schematic diagram of the second embodiment of the rear shell in the present invention.

[0040] Fig.21 yes Fig. 20 Enlarged view of point G in the middle.

[0041] Fig. 22 It is a structural schematic diagram of the second embodiment of the left and right rear shells of the present invention.

[0042] Fig.23 It is a structural schematic diagram of the third embodiment of the left and right rear shells of the present invention.

[0043] The reference numerals are as follows: 100, back plate; 110, positioning post; 111, protruding portion; 120, limiting post; 121, protruding portion; 200, display panel; 300, lower front shell; 400, rear cover; 410, middle rear shell; 411, positioning portion; 412, positioning slot; 413, step; 414, limiting hole; 4141, penetration section; 4142, limiting section; 4143, positioning slot; 4144, positioning slot; 4145, positioning slot; 4146, positioning slot; 4147, positioning slot; 4148, positioning slot; 4149, positioning slot; 420, positioning slot; 421, positioning slot; 422, positioning slot; 423, positioning slot; 424, positioning slot; 425, positioning slot; 426, positioning slot; 427, positioning slot; 428, positioning slot; 429, positioning slot; 430, positioning slot; 431, positioning slot; 432, positioning slot; 433, positioning slot; 434, positioning slot; 435, positioning slot; 436, positioning slot; 437, positioning slot; 438, positioning slot; 439, positioning slot; 440, positioning slot; 441, positioning slot; 442, positioning slot; 443, positioning slot; 444, positioning slot; 445, positioning slot; 446, positioning slot; 447, positioning slot; 448, positioning slot; 449, positioning slot; 450, positioning slot; 451, positioning slot; 452, positioning slot; 453, positioning slot; 454, positioning slot; 455, positioning slot; 456, positioning slot; 457, positioning slot; 458, positioning slot 15. Avoidance hole; 416. Avoidance hole; 420. Left and right rear shells; 421. Limiting part; 422. Limiting slot; 423. Bottom wall; 424. Limiting convex; 4241. Extension section; 4242. Engaging section; 425. Positioning protrusion; 426. Positioning part; 427. Positioning slot; 500. Reinforcement plate; 510. Positioning hole; 520. Positioning boss; 521. Protruding part. DETAILED DESCRIPTION

[0044] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0046] In the existing related technologies, most display devices implement screwless fixing of the back shell mainly through buckles or variants of buckles. The rigid connection of the buckle has the advantages of reliable connection and easy installation. However, since the buckle is a rigid connection and has no unlocking structure, in the scenario where the back shell needs to be disassembled for maintenance, after-sales, etc., the rigidly connected buckle is easy to break, resulting in the back shell cannot be used again. The present application provides a display device to solve the above technical problems.

[0047] For ease of description and understanding, the state of the display device in upright use is used as a reference, the vertical direction is the up-down direction, the direction facing the user is the front, the direction facing away from the user is the back, and the width direction of the display device is the left-right direction. In the display device, the sky side is the upper side.

[0048] Figure 1 It is a structural schematic diagram of a viewing angle of the display device of the present invention. Figure 2 It is a schematic diagram of the back structure of the display device of the present invention. Figure 3 It is a schematic diagram of the exploded structure of the display device of the present invention.

[0049] See also Figures 1 to 3 This embodiment provides a display device, which mainly includes a back plate 100, a display panel 200 installed on the front side of the back plate 100, a lower front shell 300 arranged below the back plate 100, and a back cover 400 detachably installed on the back of the back plate 100. The display device is a television or a computer monitor, etc., and the following description takes a television as an example.

[0050] The front side of the back plate 100 is sequentially provided with a light source, an optical film group and a display panel 200. The light emitted by the light source is projected onto the display panel 200 after passing through the optical film group, and the image information is displayed on the display panel 200 after being acted upon by the display panel 200.

[0051] The light source, the optical film group and the display panel 200 are all arranged on the front side of the back plate 100. The back plate 100 is the main supporting structure of the display device. The back plate 100 is arranged in a vertical direction. The peripheral edge of the back plate 100 is formed with a frame protruding forward. The frame is arranged around the periphery and extends around the edge of the back plate 100. The frame extends forward beyond the front side of the back plate 100. The frame and the back plate 100 enclose a mounting cavity with an opening on the front side for mounting the backlight source and the optical film group. The display panel 200 is fixed to the front end of the frame.

[0052] The frame may be a middle frame that fixes the peripheral edge of the back plate 100. The middle frame covers the edge of the back plate 100, and the middle frame surrounds the peripheral edge of the back plate 100. In some embodiments, the frame and the back plate 100 are formed integrally, and the edge of the back plate 100 extends forward to form a frame, and the frame is arranged around the circumference.

[0053] 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 backlight source so that after the light passes through the optical film group, uniform white light can be obtained on the light exit side in front of the optical film group.

[0054] The backlight source is an LED light board, which is attached to the bottom surface of the mounting cavity, and the LED light board emits white light forward toward the optical film group. In some embodiments, there is a gap between the backlight source and the optical film group in the up and down directions to form a light mixing distance. In other embodiments, the backlight source and the optical film group are attached in the up and down directions.

[0055] The optical film group is arranged in front of the backlight source and is spaced apart from the backlight source to improve the uniformity of the light source and enhance the brightness of the light source. The optical film group includes a diffusion plate and a plurality of films arranged in sequence. The plurality of films include a brightness enhancement film and a plurality of prism films, or the plurality of films include a plurality of prism films.

[0056] 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 deflected by the electric field stimulation, which reduces the transmission rate of the light emitted from the optical film group to the liquid crystal panel, and then projects the light into filters of different colors to form an image.

[0057] A rear cover 400 is provided on the rear side of the back plate 100. The rear cover 400 is fixed to the back side of the back plate 100. A receiving cavity is formed between the front side of the rear cover 400 and the rear side of the back plate 100. Electronic components such as a main board, a power board and other driving components are provided in the receiving cavity. The main board, the power board and other driving components are located within the enclosure of the rear cover 400 so as to protect the components in the cavity through the rear cover 400.

[0058] The mainboard is mainly used to calculate the control system of the display device and output relevant operation instructions accordingly. The mainboard has a large number of electronic components, which mainly transmit the operation instructions output by the mainboard to the corresponding operation terminal.

[0059] The power board is separately provided or integrated on the main board and fixed on the back side of the back board 100. It is mainly used to provide driving voltage or stable working voltage to the main board and keep the output current stable when the circuit on the main board is working.

[0060] Other driving components include speakers and socket strips. The speaker is arranged on the back of the back panel 100, and is mainly used to cooperate with the interface displayed by the display panel 200 to produce corresponding sounds. The socket strip is provided with multiple different types of interfaces for connecting external devices. To receive signals from external devices or output signals to external devices. In some embodiments, the socket strip is integrated on the mainboard. Other driving components can be structures such as a remote control module or a voice module.

[0061] In some embodiments, the display device further includes a base, which is fixed to the back of the back plate 100 to support the back plate 100, thereby supporting the entire display device. In other embodiments, the base is disposed on the back cover 400. In other embodiments, the display device is not provided with a base, and a hanger is provided on the back of the display device to hang the display device on a wall.

[0062] Figure 4 It is a structural schematic diagram of the back plate of the present invention. Figure 5 yes Figure 4 Enlarged view of point A in the middle. Figure 6 yes Figure 4 Enlarged view of point B in the middle.

[0063] See also Figures 3 to 6 The back panel 100 is fixed with electronic components, and the back of the back panel 100 and the other side of the electronic components are respectively formed with a plurality of protruding structures (not shown in the figure) protruding backwards. After the circuit board, power supply and other electronic components are installed on the back of the back panel 100, the electronic components will inevitably protrude backwards to form a protruding structure.

[0064] A plurality of positioning posts 110 protruding backward are arranged on the upper side of the back of the back plate 100. The positioning posts 110 are arranged in the middle of the left-right direction of the upper side of the back plate 100. The centers of the plurality of positioning posts 110 are on the same straight line extending in the left-right direction. A plurality of positioning posts 110 are arranged at intervals in the left-right direction to limit the rear cover 400. A protrusion 111 is formed at the rear end of the positioning post 110 protruding outward along its own radial direction. The positioning post 110 is close to the upper end of the back plate 100.

[0065] In this embodiment, a plurality of limit posts 120 protruding backward are respectively provided on the sky side and the left and right sides of the back of the back plate 100, and the limit posts 120 are located on the left and right sides of the positioning posts 110. A plurality of limit posts 120 are provided, and some of the limit posts 120 are provided on the sky side of the back plate 100 and are arranged at intervals along a straight line in the left and right directions. Some of the limit posts 120 are provided on the sky side of the back plate 100, and some of the limit posts 120 are provided on the left and right edges of the back plate 100 and are arranged at intervals along the vertical direction. The rear end of the limit post 120 is formed with a protrusion 121 protruding outward along its own radial direction.

[0066] The limiting posts 120 and the positioning posts 110 are structures integrally formed on the back of the back plate 100, or are structures separately fixed to the back plate 100. In this embodiment, the back plate 100 is formed by bending and stamping a metal plate. The back plate 100 formed by stamping a metal plate can ensure the structural strength of the back plate 100 while making the back plate 100 thinner, so that the display device is thinner from front to back.

[0067] The limit clamping column 120 and the positioning clamping column 110 are structures such as bolts or rivets fixed to the back of the back plate 100. The top side and the left and right side edges of the back plate 100 are bent forward and extended and then bent downward to form a frame, and the display panel 200 is set in the frame. The lower front shell 300 is set on the ground side of the back plate 100 to block the bottom of the frame and support the display panel 200 upward.

[0068] In some embodiments, the back plate 100 is formed by injection molding of a plastic material, and the limiting clamping column 120 and the positioning clamping column 110 are structures integrally formed on the back side of the back plate 100 .

[0069] Figure 7 It is a schematic diagram of the exploded structure of a rear cover embodiment of the present invention.

[0070] See also Figures 2 to 7 The back cover 400 includes a middle back cover 410 and left and right back covers 420 disposed on the left and right sides of the middle back cover 410; the middle back cover 410 is used to cover the back side of the back plate 100 and cover all or part of the electronic components on the back side of the back plate 100.

[0071] The front side of the middle rear shell 410 is formed with multiple protruding structures (not marked in the figure), which are used to enhance the structural strength of the middle rear shell 410 and to cooperate with the electronic components on the back panel 100; the multiple protruding structures and the protruding structures on the multiple electronic components are respectively relative and staggered.

[0072] In the prior art, the ultra-thin setting of the display device is an important research field of the display device. In order to ensure that the display device has a thinner thickness at the front and back, the thickness of the back cover 400 is generally set to be thinner. On the basis of the thin setting of the back cover 400, corresponding convex structures such as reinforcing ribs are set on the front side of the back cover 400 to ensure the structural strength of the back cover 400. The setting of the reinforcing ribs needs to be misaligned with the corresponding connection structures on the electronic components and the back plate 100. At the same time, in order to reduce the thickness of the display device, the front side of the back cover 400 is as close to the electronic components as possible to avoid the heat released by the electronic components causing the deformation of the back cover 400. Convex structures such as thickening ribs are set at the corresponding positions on the back cover 400. The setting of the convex structure makes it difficult to use the back cover 400 to be installed on the back of the back plate 100 in a sliding manner along the back of the back plate 100, and the sliding of the back cover 400 is likely to cause damage to the electronic components. The back cover 400 is generally attached to the back plate 100 from the back to the front and then fixed to the back plate 100 by bolts. In the prior art, the display device is generally large in size and requires a large number of screws, and the installation and removal of the screws consumes a lot of time and cost.

[0073] In this embodiment, the middle rear shell 410 is covered on the back panel 100 from the back to the front, and the left and right rear shells 420 are pressed onto the back side of the middle rear shell 410, thereby limiting the middle rear shell 410 on the back side of the back panel 100. By limiting the middle rear shell 410 by the left and right rear shells 420, the setting of screws on the middle rear shell 410 is reduced, thereby effectively reducing the protruding structure on the front side of the middle rear shell 410, so that there is a larger effective space between the middle rear shell 410 and the back panel 100 to install electronic components.

[0074] Figure 8 It is a structural schematic diagram of a first embodiment of the rear shell of the present invention from one viewing angle. Fig. 9 yes Figure 8 Enlarged view of point C in the middle. Fig.10 It is a structural schematic diagram of the first embodiment of the rear shell in another viewing angle of the present invention. Fig.11 yes Fig.10 Enlarged view of point D in the middle. Fig.12 It is a schematic diagram of the connection of the rear shell to the back plate in the present invention.

[0075] See also Figures 4 to 12In this embodiment, a protruding positioning portion 411 is formed on the front side of the middle rear shell 410; a positioning slot 412 with an upper opening is formed on the positioning portion 411, and the positioning slot 412 can be engaged with the positioning post 110 upward to limit the left and right and upward movement of the positioning portion 411, and the positioning portion 411 is limited between the back of the back plate 100 and the protruding portion 111 along the front and rear direction. A plurality of positioning portions 411 are arranged at intervals along the left and right direction to correspond to the plurality of positioning posts 110 on the back plate 100.

[0076] The positioning portion 411 is arranged on the top side of the middle rear shell 410, so that after the positioning slot 412 is engaged with the positioning post 110, the middle rear shell 410 can be flipped forward and backward around the connection between the positioning slot 412 and the positioning post 110. When the middle rear shell 410 is installed on the back plate 100, the top side of the middle rear shell 410 can be tilted forward, and the positioning portion 411 on the top side of the middle rear shell 410 is first engaged with the positioning post 110, and then the bottom of the middle rear shell 410 is flipped toward the back plate 100, so that the middle rear shell 410 is attached to the back plate 100. When the middle rear shell 410 is disassembled, the lower end of the middle rear shell 410 is flipped away from the back plate 100, so that the middle rear shell 410 is tilted, and then the middle rear shell 410 is set to be pulled downward to separate the positioning portion 411 and the positioning post 110. The middle rear case 410 is fixed on the display device by positioning the clamping column 110 and the positioning portion 411 , so that the middle rear case 410 can be assembled and disassembled multiple times.

[0077] In this embodiment, both left and right sides of the middle rear shell 410 are protruded to form a step 413; the left and right rear shells 420 overlap and press on the step 413 at one end facing the middle rear shell 410, so that the middle rear shell 410 is pressed on the back of the back plate 100, so that the middle rear shell 410 is firmly limited on the back of the back plate 100. The left and right rear shells 420 are pressed on the step 413 to reduce the thickness of the left and right rear shells 420 at the overlap of the middle rear shell 410, so as to achieve the effect of ultra-thin display device. The back of the left and right rear shells 420 exceeds the back of the middle rear shell 410 forward or is flush with the back of the middle rear shell 410, so that the setting of the left and right rear shells 420 will not increase the thickness of the display device.

[0078] In this embodiment, the left and right side walls of the middle rear shell 410 are provided with limit holes 414 extending in the up-down direction and used to cooperate with the left and right rear shells 420 to limit the relative movement between the left and right rear shells 420 and the middle rear shell 410.

[0079] In this embodiment, the limiting card hole 414 includes a penetration section 4141 and a limiting section 4142 extending upward from the upper end of the penetration section 4141 in the direction from bottom to top; the hole cavity of the penetration section 4141 extends backward beyond the limiting section 4142 to facilitate a structure on the left and right rear shells 420 to pass through the penetration section 4141 and be engaged in the limiting section 4142.

[0080] It should be noted that, in some embodiments, the lower part or bottom of the middle rear shell 410 uses bolts or buckle structures to limit the middle rear shell 410 on the back plate 100. The positioning part 411 and the positioning column 110 are used in the upper part to reduce the use of screws.

[0081] Fig.13 It is a structural schematic diagram of the left and right rear shells of the first embodiment of the present invention from one viewing angle. Fig.14 It is a structural schematic diagram of the first embodiment of the left and right rear shells of the present invention from another viewing angle. Fig.15 yes Fig.14 Enlarged view of point E in the middle.

[0082] See again Figures 4 to 15 In this embodiment, two left and right rear shells 420 are provided, and the two left and right rear shells 420 are respectively provided on the left and right sides of the middle rear shell 410. The left and right rear shells 420 overlap and press on the middle rear shell 410 on one side facing the middle rear shell 410, so as to press the middle rear shell 410 on the back plate 100. On the basis of limiting the middle rear shell 410 on the back of the back plate 100, the use of screws to fix the middle rear shell 410 is reduced or unnecessary.

[0083] The left and right rear shells 420 are detachably connected to the left and right sides of the back plate 100, and one end of the left and right rear shells 420 facing the middle rear shell 410 overlaps and is pressed on the left and right edges of the middle rear shell 410, so that the middle rear shell 410 is pressed on the back of the back plate 100. By overlapping and pressing the left and right rear shells 420 on the middle rear shell 410, the middle rear shell 410 is limited, and multiple degrees of freedom of the middle rear shell 410 are limited, thereby reducing the use of screws on the middle rear shell 410.

[0084] The left and right rear shells 420 limit the position of the center rear shell 410 , and thus the center rear shell 410 is indirectly limited by limiting the position of the left and right rear shells 420 , so that fewer limiting structures are provided on the center rear shell 410 .

[0085] The height of the left and right rear shells 420 in the vertical direction is the same as the height of the middle rear shell 410 in the vertical direction, and the left and right rear shells 420 are at least overlapped in the middle of the middle rear shell 410 in the vertical direction, so as to effectively prevent the middle rear shell 410 from being deformed.

[0086] In this embodiment, the step 413 extends up and down, and the rear side of the step 413 is on the same plane, so that the left and right rear shells 420 can slide up and down along the step 413 at the parts overlapped on the step 413. The step 413 is an integrated structure or a plurality of vertically spaced structures.

[0087] In this embodiment, a protruding limiting portion 421 is formed on the front side surface of the left and right rear shells 420; a limiting slot 422 with an upper end opening is provided on the limiting portion 421; the limiting slot 422 can be upwardly engaged in the limiting column 120 to limit the left and right and upward movement of the limiting portion 421, and the limiting portion 421 is limited between the back surface of the back plate 100 and the protruding portion 121 along the front and rear direction. The limiting portion 421 on the left and right rear shells 420 cooperates with the limiting column 120 to reduce the use of screws on the left and right rear shells 420.

[0088] Part of the limiting parts 421 are arranged on the side of the left and right rear shells 420 facing away from the middle rear shell 410, and are arranged at intervals in the up and down directions; part of the limiting posts 120 are arranged on the left and right edges of the back plate 100, and are spaced vertically; the steps 413 extend up and down, and the rear side surfaces of the steps 413 are on the same plane, so that the left and right rear shells 420 can slide up and down along the steps 413 at the parts overlapping on the steps 413. When installing the left and right rear shells 420, the left and right rear shells 420 are attached to the steps 413 and slide upward, so that the limiting slots 422 on the left and right rear shells 420 can cooperate with the limiting posts 120 on the back plate 100 to limit the left and right rear shells 420 on the back plate 100.

[0089] In some embodiments, the left and right rear shells 420 are fixed to the back plate 100 by bolts or screws. Alternatively, screws or bolts are further provided between the left and right rear shells 420 and the back plate 100.

[0090] The left and right rear shells 420 support the display middle rear shell 410 upward to limit the downward movement of the middle rear shell 410. In this embodiment, the bottom wall 423 of the left and right rear shells 420 extends forward, and the bottom wall 423 of the left and right rear shells 420 is connected to the lower front shell 300. The bottom wall 423 of the left and right rear shells 420 supports the bottom of the step 413 upward.

[0091] The upper and lower ends of the step are respectively close to or beyond the upper and lower ends of the back plate, and the left and right rear shells cover the step to exert force on the left and right edges of the middle rear shell as a whole to avoid local deformation of the middle rear shell.

[0092] A protruding limiting structure is formed on one side of the left and right rear shells 420 facing the middle rear shell 410 , and the limiting structure is engaged with the middle rear shell 410 or the back plate 100 , so that the left and right rear shells 420 are pressed against the step 413 on one side facing the middle rear shell 410 .

[0093] In this embodiment, the left and right rear shells 420 are attached to the middle rear shell 410 on one side facing the middle rear shell 410; a protruding limit clamping protrusion 424 is formed on the side facing the middle rear shell 410 of the left and right rear shells 420 to form a limit structure, and the limit clamping protrusion 424 can slide in the limit clamping hole 414 along the up-down direction, and the left and right rear shells 420 are attached to the middle rear shell 410 on one side facing the middle rear shell 410; a protruding limit clamping protrusion 424 is formed on the side facing the middle rear shell 410 of the left and right rear shells 420 to form a limit structure, and the limit clamping protrusion 424 can slide in the limit clamping hole 414 along the up-down direction. And it is limited in the limit clamping hole 414 along the front-back direction. The limit clamping protrusion 424 is limited in the limit clamping hole 414 in the front-back direction to maintain the left and right rear shells 420 pressed against the middle rear shell 410.

[0094] In this embodiment, the limiting latch 424 includes an extension section 4241 connected to the left and right rear shells 420, and a locking section 4242 that bends backward and extends from one end of the extension section 4241 away from the corresponding left and right rear shells 420; the locking section 4242 can pass through the penetration section 4141 of the upper limit clamping hole 414 of the middle rear shell 410, and when the extension section 4241 is penetrated in the limiting section 4142, the locking section 4242 passes through the left and right side walls of the middle rear shell 410 and overlaps the left and right side walls of the middle rear shell 410.

[0095] When the left and right rear shells 420 are installed on the back plate 100, the limiting clamping protrusions 424 and the limiting clamping holes 414 on the middle rear shell 410 are opposite to each other, and the left and right rear shells 420 are moved toward the middle rear shell 410 along the left and right directions. The engaging sections 4242 of the limiting clamping protrusions 424 pass through the penetration sections 4141 and move the left and right rear shells 420 backward and upward. The left and right rear shells 420 drive the limiting clamping protrusions 424 to move upward, so that the extending sections 4241 of the limiting clamping protrusions 424 move into the limiting sections 4142, and the engaging sections 4242 overlap the inner sides of the left and right side walls of the middle rear shell 410.

[0096] The engaging section 4242 overlaps the inner sides of the left and right side walls of the middle rear shell 410 , and the left and right rear shells 420 are attached to the middle rear shell 410 on one side facing the middle rear shell 410 , thereby limiting the left and right movement of the left and right rear shells 420 relative to the middle rear shell 410 .

[0097] A plurality of limiting clamping holes and limiting clamping protrusions are arranged at intervals along the vertical direction and are arranged correspondingly, so that the connection and limiting between the middle rear shell and the left and right rear shells are tighter.

[0098] When installing the left and right rear shells 420, the side of the left and right rear shells 420 facing the middle rear shell 410 is attached to the middle rear shell 410, so that the limit slots 422 on the left and right rear shells 420 correspond to the limit posts 120 on the back plate 100. When the left and right rear shells 420 are moved upward, the limit slots 422 on the left and right rear shells 420 can be correspondingly engaged in the limit posts 120, which facilitates the rapid installation of the left and right rear shells 420. The side walls of the left and right rear shells 420 facing the middle rear shell 410 are located in a vertical plane in the up-down direction, and the left and right side walls of the middle rear shell 410 are also located in the same vertical plane in the up-down direction, so as to abut and fit with the side surfaces of the left and right rear shells 420.

[0099] In this embodiment, the left and right rear shells 420 can slide upward along the back of the back plate 100 and the step 413, and are locked and limited on the back of the back plate 100. In some embodiments, the left and right rear shells 420 are detachably fixed to the back of the back plate 100 by bolts or hook structures, so as to facilitate the removal of the middle rear shell 410.

[0100] Fig.16 It is a structural schematic diagram of the reinforcing plate of the present invention. Fig.17 It is a schematic diagram of the structure of the reinforcing plate on the back plate 100 of the present invention. Fig.18 It is a schematic diagram of the structure of the reinforcing plate and the middle rear shell on the back plate of the present invention. Fig.19 yes Fig.18 Enlarged view of point F in the middle. Fig. 20 It is a structural schematic diagram of the second embodiment of the rear shell in the present invention. Fig.21 yes Fig. 20 Enlarged view of point G in the middle.

[0101] See also Figures 4 to 21 In the present application, a reinforcing plate 500 is fixedly connected to the back side of the back plate 100, and the reinforcing plate 500 is arranged at the overlap of the middle rear shell 410 and the left and right rear shells 420 in the left and right directions, and the reinforcing plate 500 is located in front of the middle rear shell 410; a snap-fit ​​position is provided on the reinforcing plate 500, and the limiting structure on the left and right rear shells 420 is snap-fitted at the snap-fit ​​position, so that one end of the left and right rear shells 420 facing the middle rear shell 410 can be pressed on the middle rear shell 410.

[0102] In one embodiment, a locking hole 510 is formed on the reinforcing plate 500 , and the limiting structures on the left and right rear shells 420 are locked and limited in the locking hole 510 .

[0103] The locking hole 510 is located within the coverage of the middle rear shell 410 and on the side of the step 413 facing away from the left and right rear shells 420, so that the limiting position of the limiting structure and the locking structure is located on the side of the step 413 facing away from the left and right rear shells 420, so as to ensure the pressing of the left and right rear shells 420 to the middle rear shell 410. A avoiding hole 415 is provided on the side of the middle rear shell 410 facing the left and right rear shells 420 corresponding to the locking hole 510, and the limiting structure passes through the avoiding hole 415 and is locked in the locking hole 510.

[0104] In another embodiment, a locking boss 520 is provided on the reinforcing plate 500, and a rear end of the locking boss 520 is formed with a convex portion 521 protruding outward along its own radial direction. The limiting structure on the left and right rear shells 420 is locked and limited on the locking boss 520. The locking boss 520 is located within the coverage range of the middle rear shell 410, and is located on the side of the step 413 facing away from the left and right rear shells 420, so that the limiting position of the limiting structure and the locking structure is located on the side of the step 413 facing away from the left and right rear shells 420, so as to ensure that the left and right rear shells 420 are pressed against the middle rear shell 410. An avoidance hole 416 is provided on one side of the middle rear shell 410 facing the left and right rear shells 420 corresponding to the locking boss 520, and the limiting structure passes through the avoidance hole 416 and is engaged in the locking boss 520.

[0105] In some embodiments, the locking hole 510 and the locking protrusion 520 are separately provided on the reinforcing plate 500, and the limiting structure is provided accordingly. In other embodiments, the locking hole 510 and the locking protrusion 520 are provided together on the reinforcing plate 500 to adapt to two different limiting structures.

[0106] In some other embodiments, the limiting card hole 414 is not disposed on the middle rear shell 410 , but is disposed on the reinforcing plate 500 .

[0107] Fig. 22 It is a structural schematic diagram of the second embodiment of the left and right rear shells of the present invention.

[0108] See also Figures 4 to 22 In this embodiment, the structure of the left and right rear shells 420 refers to the structure of the left and right rear shells 420 in the first embodiment of the left and right rear shells 420, and the difference is that: in the second embodiment of the left and right rear shells 420, the limiting structure is a locking protrusion 425 that protrudes and extends from the left and right rear shells 420 toward the side of the middle rear shell 410; the locking protrusion 425 is penetrated in the avoidance hole 415 on the reinforcing plate 500, and can slide up and down in the avoidance hole 415; the locking protrusion 425 is penetrated along its own extension direction and is limited in the locking hole 510.

[0109] Fig.23 It is a structural schematic diagram of the third embodiment of the left and right rear shells of the present invention.

[0110] See also Figures 4 to 23In this embodiment, the structure of the left and right rear shells 420 refers to the structure of the left and right rear shells 420 in the second embodiment of the left and right rear shells 420, and the difference is that: the limiting structure is a locking portion 426 protruding from the left and right rear shells 420 toward the side of the middle rear shell 410; the locking portion 426 is provided with a locking slot 427 with an upper end open; the locking slot 427 can be upwardly engaged with the locking protrusion 520 on the reinforcing plate 500, limiting the left and right and upward movement of the locking portion 426, and making the locking portion 426 limited in the front-to-back direction between the back side of the reinforcing plate 500 and the protruding portion 521.

[0111] In the present application, when installing the left and right rear shells 420, the left and right rear shells 420 are attached to the back plate 100 and moved in the left and right direction in the direction toward the middle rear shell 410, so that the ends of the left and right rear shells 420 facing the middle rear shell 410 are attached to the corresponding side walls of the middle rear shell 410 in the left and right directions, and the limiting structures are penetrated on the corresponding limiting clamping holes 414, the clamping holes 510 or the clamping protrusions 520, and then the left and right rear shells 420 are slid upwards, so that the limiting structures and the corresponding structures are limited, and the limiting clamping grooves 422 on the limiting parts 421 on the left and right rear shells 420 are clamped on the limiting clamping columns 120, so that the left and right rear shells 420 are limited on the back side of the back plate 100. The left and right rear shells 420 are fixed to the back plate 100 of the back plate 100 by sliding, so as to facilitate multiple disassembly and assembly of the left and right rear shells 420.

[0112] In the present invention, a plurality of positioning posts 110 protruding backward are arranged on the upper side of the back of the back plate 100; the rear end of the positioning posts 110 protrudes outward along its own radial direction to form a protrusion 111. A protruding positioning part 411 is formed on the front side of the middle rear shell 410; a positioning slot 412 with an upper end opening is formed on the positioning part 411, and the positioning slot 412 can be upwardly engaged with the positioning posts 110 to limit the left and right and upward movement of the positioning part 411, and the positioning part 411 is limited between the back of the back plate 100 and the protrusion 111 along the front and rear direction. The positioning portion 411 is disposed on the upper side of the middle rear shell 410, so that after the positioning slot 412 is engaged with the positioning post 110, the middle rear shell 410 can be flipped forward and backward around the connection between the positioning slot 412 and the positioning post 110, so that when the middle rear shell 410 is installed, after the positioning slot 412 is engaged with the positioning post 110, the middle rear shell 410 can be flipped relative to the back plate 100, so that the middle rear shell 410 body is attached to the back plate 100. The middle rear shell 410 is attached to the back plate 100 by flipping, so that the protruding structure on the middle rear shell 410 will not interfere with the protruding structure on the back plate 100 and the electronic component.

[0113] Further, the left and right rear shells 420 are detachably connected to the left and right sides of the back plate 100, and one end of the left and right rear shells 420 facing the middle rear shell 410 overlaps and is pressed on the left and right edges of the middle rear shell 410, so that the middle rear shell 410 is pressed on the back of the back plate 100. Thus, the middle rear shell 410 is fixed to the back of the back plate 100 by pressing the left and right rear shells 420 on the middle rear shell 410, and the positioning slots 412 are engaged with the positioning posts 110, so as to reduce the use of screws of the back cover 400 as a whole or eliminate the need for screws, so as to save costs. The cooperation of the positioning posts 110 and the positioning slots 412 facilitates repeated disassembly and engagement, so as to facilitate multiple disassembly and assembly of the back cover 400 on the back plate 100.

[0114] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A display device, characterized in that: include: A back plate, the front side of which is provided with a display panel for displaying image information; a plurality of positioning posts protruding backwards are provided on the upper side of the back of the back plate; the rear ends of the positioning posts protrude outwards along their own radial direction to form a protrusion; An electronic component fixed on the back side of the back plate; the electronic component is electrically connected to the display panel; a plurality of convex structures convex backwards are formed on the back side of the electronic component; A back cover, comprising a middle back shell, and left and right back shells arranged on the left and right sides of the middle back shell; the middle back shell is used to cover the back of the back plate and cover the electronic components; a plurality of protruding structures are formed on the front side of the middle back shell, and the protruding structures are used to enhance the structural strength of the middle back shell and to cooperate with the electronic components on the back plate; the plurality of protruding structures and the plurality of raised structures are respectively opposite and staggered; a protruding positioning portion is formed on the front side of the middle back shell; a positioning slot with an upper end opening is provided on the positioning portion, and the positioning slot can be upwardly engaged with the positioning post to limit the left and right and upward movement of the positioning portion, and enable the positioning portion to be limited between the back of the back plate and the protruding portion in the front-to-back direction; Among them, the positioning part is arranged on the top side of the middle rear shell, so that after the positioning slot is engaged with the positioning post, the middle rear shell can be flipped forward and backward around the connection between the positioning slot and the positioning post; the left and right rear shells are detachably connected to the left and right sides of the back plate, and the left and right rear shells overlap and press-fit on the left and right edges of the middle rear shell toward one end of the middle rear shell, so as to press the middle rear shell onto the back side of the back plate.

2. The display device according to claim 1, characterized in that The left and right sides of the middle rear shell are both protruded to form steps; the left and right rear shells overlap and press-fit on the steps at one end facing the middle rear shell.

3. The display device according to claim 2, characterized in that: A plurality of limit posts protruding backwards are respectively arranged on the sky side and the left and right sides of the back side of the back plate, and the limit posts are located on the left and right sides of the positioning posts; the rear end of the limit post is radially outwardly protruded to form a raised portion; a raised limit portion is formed on the front side surfaces of the left and right rear shells; a limit slot with an open upper end is provided on the limit portion; the limit slot can be upwardly engaged in the limit post to limit the left and right and upward movement of the limit portion, and enable the limit portion to be limited between the back side of the back plate and the raised portion along the front-back direction.

4. The display device according to claim 3, characterized in that: Part of the limiting parts is arranged on the side of the left and right rear shells facing away from the middle rear shell, and is spaced apart in the up and down directions; part of the limiting clamping columns is arranged on the left and right edges of the back plate, and is spaced apart vertically; the steps extend up and down, and the rear side surfaces of the steps are on the same plane, so that the left and right rear shells can slide up and down along the steps at the parts overlapping the steps.

5. The display device according to any one of claims 1 to 4, characterized in that: The left and right rear shells are formed with a protruding limiting structure on one side facing the middle rear shell, and the limiting structure is engaged with the middle rear shell or the back plate, so that the left and right rear shells are pressed against the middle rear shell on one side facing the middle rear shell.

6. The display device according to claim 5, characterized in that: The left and right side walls of the middle rear shell are provided with limit clamping holes, and the limit clamping holes extend in the up-down direction; the left and right rear shells are attached to the middle rear shell on one side facing the middle rear shell; the left and right rear shells are formed with protruding limit clamping protrusions on one side facing the middle rear shell to form the limit structure, and the limit clamping protrusions can slide in the limit clamping holes in the up-down direction, and be limited in the limit clamping holes in the front-back direction.

7. The display device according to claim 6, characterized in that: The limit clamping hole includes a penetration section and a limit section extending upward from the upper end of the penetration section in the direction from bottom to top; the hole cavity of the penetration section extends backward beyond the limit section; the limit clamping protrusion includes an extension section connected to the left and right rear shells, and a clamping section bent backward and extended from one end of the extension section away from the corresponding left and right rear shells; the clamping section can pass through the penetration section, and when the extension section is penetrated in the limit section, the clamping section passes through the left and right side walls of the middle rear shell and overlaps the left and right side walls of the middle rear shell.

8. The display device according to claim 5, characterized in that A reinforcing plate is fixedly connected to the back side of the back plate, and the reinforcing plate is arranged at the overlap between the middle rear shell and the left and right rear shells in the left and right directions, and the reinforcing plate is located in front of the middle rear shell; a snap-fit ​​position is arranged on the reinforcing plate, and the limiting structure is snap-fitted to the snap-fit ​​position.

9. The display device according to claim 8, characterized in that: A locking hole is provided on the reinforcing plate; the limiting structure is a locking protrusion protruding and extending from the side of the left and right rear shells toward the middle rear shell; an avoidance hole is provided on the side of the middle rear shell facing the left and right rear shells corresponding to the locking hole, the locking protrusion is passed through the avoidance hole and can slide up and down in the avoidance hole; the locking protrusion passes through the locking hole along its own extension direction and is limited in the locking hole.

10. The display device according to claim 8, characterized in that: The reinforcing plate is provided with a locking boss, and the rear end of the locking boss protrudes outward along its own radial direction to form a convex portion; the limiting structure is a locking portion protruding from the left and right rear shells toward the side of the middle rear shell; the middle rear shell is provided with an avoidance hole on the side facing the left and right rear shells corresponding to the locking portion, and the locking portion is inserted into the avoidance hole and can slide up and down in the avoidance hole; the locking portion is provided with a locking groove with an upper end opening; the locking groove can be engaged upwardly on the locking boss to limit the left and right and upward movement of the locking portion, and the locking portion is limited in the front-to-back direction between the back side of the reinforcing plate and the convex portion.

Images