Display device

Abstract

The utility model provides a display device which comprises a back plate and a rear shell. Openings of the first limiting protrusion and the second limiting protrusion are located on the same side. The first limiting protrusions are close to the left edge and the right edge of the backboard, the second limiting protrusions are arranged on the sides, facing the middle of the display device, of the first limiting protrusions, and the distance between the rear side faces of the second limiting protrusions and the display face is larger than that between the rear side faces of the first limiting protrusions and the display face. The limiting buckles comprise the first limiting buckle used for being clamped with the first limiting protrusion and the second limiting buckle used for being clamped with the second limiting protrusion. The distance between the rear shell and the display surface at the position of the second limiting buckle is greater than that between the rear shell and the display surface at the position of the first limiting buckle, so that a lower distance is formed between the rear side surfaces of the left and right edges of the rear shell and the plane where the display panel is located, and the left and right sides of the display device have smaller thicknesses after the rear shell is attached to the back surface of the back plate; and the left side and the right side of the display device are thinner, so that the user experience and satisfaction are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliance products, and particularly relates to a display device. Background Art

[0002] Display devices are widely used in users' daily lives, changing users' living habits and enabling users to obtain a better living experience. There are many types of electronic devices. Among them, display devices are mainly televisions, monitors, etc. A display device can serve as an independent display source or can be paired with other functional components to endow the display device with corresponding functions.

[0003] Display devices such as liquid crystal televisions and liquid crystal monitors mainly include a display panel, a backplane, and a rear case, etc. Among them, the display panel is arranged on the front side wall of the backplane and serves as the display screen of the display device; the rear case is arranged on the rear side wall of the backplane and serves as part or all of the appearance surface on the back side of the display device.

[0004] Currently in the television industry, due to problems such as material characteristics and dimensional tolerances of the flat-panel television rear case, the connection and fixation between the rear case and the backplane have generally been fixed with screws for a long time. The number of screws is 14 to 17. With the development of the market, the cost competition among various brands of televisions is becoming increasingly fierce, and the cost compression space is getting smaller and smaller. When using the screw fixation method, each screw is tightened one by one through a machine or manually, and the assembly working hours are too long. Even when using a robot or a robotic arm to synchronously tighten the screws at multiple stations, the equipment cost and implementation difficulty are relatively high. Content of the Utility Model

[0005] The purpose of the utility model is to provide a display device, which can conveniently install the rear case on the backplane quickly and can reduce the number of screws used, thus saving the production cost.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] According to one aspect of the utility model, the utility model provides a display device, including a backplane, a lower front case, and a rear case.

[0008] A display panel for displaying image information is arranged on the front side of the backplane, and the front side of the display panel is the display surface; a protruding limiting protrusion is formed on the back surface of the backplane, and at least one side of the limiting protrusion in the left-right direction is open; the left-right direction is the direction parallel to the horizontal direction of the display panel.

[0009] Rear shell. It is used to fit on the back of the back plate; a protruding limit buckle is formed on the front side of the rear shell, and the end of the limit buckle extends in the left-right direction; the rear shell can move relative to the back plate in the left-right direction, so that the limit buckle can be detachably engaged in the opening of the limit protrusion, driving the rear shell to fit on the back of the back plate.

[0010] A plurality of the limit protrusions are provided, and the plurality of the limit protrusions include a first limit protrusion and a second limit protrusion; the openings of the first limit protrusion and the second limit protrusion are on the same side; the first limit protrusion is close to the left and right edges of the back plate, the second limit protrusion is arranged on one side of the first limit protrusion facing the middle of the display device, and the distance between the rear side surface of the second limit protrusion and the display surface is greater than the distance between the rear side surface of the first limit protrusion and the display surface; the limit buckle includes a first limit buckle for engaging with the first limit protrusion and a second limit buckle for engaging with the second limit protrusion; the distance between the rear shell and the display surface at the position of the second limit buckle is greater than the distance between the rear shell and the display surface at the position of the first limit buckle.

[0011] In some embodiments of the present application, a protruding rib is formed on the back of the back plate, the second limit protrusion protrudes from the rear side surface of the rib, and the sum of the heights of the rib and the second limit protrusion is greater than 30 mm, so that a circuit board can be placed between the rear shell and the back plate.

[0012] In some embodiments of the present application, the sum of the heights of the rib and the second limit protrusion is H, and the distance between the second limit protrusion and the edge of the back plate is L, where the ratio of H to L is less than 0.22, so that the edge of the rear shell and the side surface of the display device have a smooth transition.

[0013] In some embodiments of the present application, the height of the second limit protrusion is greater than the height of the first limit protrusion, and / or the height of the second limit buckle is greater than the height of the first limit buckle.

[0014] In some embodiments of the present application, a bottom plate extending in a certain direction is provided at the bottom of the display device, a chute is opened at the rear end of the bottom plate, and an extension plate extending forward is formed at the lower part of the rear shell; the front side surface or the rear side surface of the extension plate abuts against the side wall of the chute and can slide in the left-right direction along the chute, where the lower part is the part below when the display device is placed and used normally.

[0015] In some embodiments of the present application, the bottom plate extends in the left - right direction to at least one end face on the left and right sides of the display device; the sliding groove is formed on the bottom surface of the bottom plate, and the sliding groove extends in the left - right direction to at least one end face on the left and right sides of the display device; a protruding limit clamping convex is formed on the upper surface of the front end of the extension plate; the limit clamping convex extends upward into the sliding groove, and the rear end of the limit clamping convex abuts against the rear side surface of the sliding groove.

[0016] In some embodiments of the present application, a chamfer is provided at the lower edge of the rear end of the bottom plate; the front side surface of the limit clamping convex is a guiding inclined surface extending upward and backward.

[0017] In some embodiments of the present application, a stop protrusion is further provided on the extension plate, the stop protrusion is located above the limit clamping convex, and the stop protrusion is used to block the upper end of the bottom plate to prevent the rear shell from slipping out of the sliding groove during the sliding installation.

[0018] In some embodiments of the present application, an avoidance groove is formed on the upper surface of the rear end of the extension plate, and the upper end and the front end of the avoidance groove are open; the rear end of the bottom plate is located in the avoidance groove.

[0019] In some embodiments of the present application, a protruding support rib is formed on the back surface of the back plate, and a protruding support protrusion is formed on the front side surface of the rear shell; the lower end of the support protrusion abuts against the upper end of the support rib and can slide along the upper end of the support rib.

[0020] In some embodiments of the present application, a protruding stop portion is formed on the lower surface of the support protrusion. When the rear shell moves relative to the back plate in the left - right direction, the limit buckle is engaged with the limit protrusion, and the stop portion abuts against one side of the support protrusion in the left - right direction to limit the movement of the rear shell in the left - right direction.

[0021] In some embodiments of the present application, the rear shell includes a first rear shell and a second rear shell, the limit buckle is provided on the front side surface of the first rear shell; the first rear shell is slidably arranged on the back surface of the back plate in the left - right direction; a card slot is provided on the rear side surface of one side edge of the first rear shell in the left - right direction, and the card slot extends vertically; the second rear shell can move relative to the back plate in the up - down direction, and a card strip extending vertically is provided on one side edge of the second rear shell facing the first rear shell; the card strip is engaged and extends into the card slot and can move up and down along the card strip.

[0022] In some embodiments of the present application, engaging protrusions are respectively protruded on the left and right sides of the card strip; one end of the engaging protrusion facing away from the card strip abuts against the side wall of the card slot.

[0023] In this embodiment, a protruding limiting protrusion is formed on the back surface of the back plate. The plurality of limiting protrusions include a first limiting protrusion and a second limiting protrusion; the openings of the first limiting protrusion and the second limiting protrusion are on the same side. The limiting buckle includes a first limiting buckle for engaging with the first limiting protrusion and a second limiting buckle for engaging with the second limiting protrusion; the rear shell can move relative to the back plate in the left-right direction so that the limiting buckle can be detachably engaged in the opening of the limiting protrusion, driving the rear shell to fit on the back surface of the back plate, thereby enabling the rear shell to be installed and disassembled by sliding left and right. It is convenient to quickly install the rear shell on the back plate and can reduce the number of screws used, saving production costs.

[0024] At the same time, the plurality of limiting protrusions include a first limiting protrusion and a second limiting protrusion; the openings of the first limiting protrusion and the second limiting protrusion are on the same side; the first limiting protrusion is close to the left and right edges of the back plate, the second limiting protrusion is arranged on the side of the first limiting protrusion facing the middle of the display device, and the distance between the rear side surface of the second limiting protrusion and the display surface is greater than the distance between the rear side surface of the first limiting protrusion and the display surface; the limiting buckle includes a first limiting buckle for engaging with the first limiting protrusion and a second limiting buckle for engaging with the second limiting protrusion; the distance between the rear shell and the display surface at the position of the second limiting buckle is greater than the distance between the rear shell and the display surface at the position of the first limiting buckle, so that there is a lower distance between the rear side surfaces of the left and right edges of the rear shell and the plane where the display panel is located. After the rear shell fits on the back surface of the back plate, the left and right sides of the display device have a smaller thickness, making the left and right sides of the display device thinner, thereby improving the user experience and satisfaction.

[0025] Other features and advantages of the present application will become apparent from the following detailed description, or will be partially learned through the practice of the present application.

[0026] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0028] Figure 1 It is a schematic structural diagram of an embodiment of the display device of the present utility model.

[0029] Figure 2 It is a schematic structural diagram of one perspective of the back plate of the present utility model.

[0030] Figure 3 It is a schematic structural view of another perspective of the back panel of the present utility model.

[0031] Figure 4 It is Figure 2 an enlarged view of the position A in

[0032] Figure 5 It is Figure 2 an enlarged view of the position B in

[0033] Figure 6 a partial schematic structural view of the back panel of the present utility model.

[0034] Figure 7 It is a schematic view of the cooperation between the bottom plate and the rear shell of the present utility model.

[0035] Figure 8 It is a schematic structural view of the bottom plate of the present utility model.

[0036] Figure 9 It is a schematic structural view of one perspective of the rear shell of the present utility model.

[0037] Figure 10 It is Figure 9 an enlarged view of the position C in

[0038] Figure 11 It is Figure 9 an enlarged view of the position D in

[0039] Figure 12 a partial schematic structural view of the rear shell of the present utility model.

[0040] Figure 13 It is a schematic structural view of another perspective of the rear shell of the present utility model.

[0041] Figure 14 It is Figure 13 an enlarged view of the position E in

[0042] Figure 15 It is Figure 13 an enlarged view of the position F in

[0043] Figure 16 It is a sectional view of the connection between the rear shell and the bottom plate of the present utility model.

[0044] Figure 17 It is another sectional view of the connection between the rear shell and the bottom plate of the present utility model.

[0045] Figure 18 It is a schematic structural view of the first rear shell of the present utility model.

[0046] Figure 19 It is a schematic structural view of the second rear shell of the present utility model.

[0047] Figure 20 is Figure 19 The enlarged view of the position H in the figure.

[0048] The description of the reference numerals in the drawings is as follows: 100, back plate; 110, limiting projection; 111, first limiting projection; 112, second limiting projection; 120, supporting rib; 130, rib; 200, rear shell; 201, first rear shell; 202, second rear shell; 210, limiting buckle; 220, supporting projection; 221, stopping portion; 230, extension plate; 231, extension portion; 232, engaging portion; 240, limiting convex; 241, guiding inclined surface; 250, stopping projection; 260, avoiding groove; 270, clamping groove; 280, clamping strip; 281, engaging convex; 300, bottom plate; 310, front plate; 320, lower plate; 330, sliding groove; 331, chamfer. Detailed implementation manners

[0049] Now, the exemplary embodiments will be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various 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 more thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0050] In addition, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present application. However, those skilled in the art will realize that the technical solutions of the present application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the present application.

[0051] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted here 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 by referring to the accompanying drawings are exemplary and are intended to explain the present application, and should not be construed as limiting the present application.

[0052] In the current TV industry, due to material properties, dimensional tolerances, and other issues of the back cover of flat-panel TVs, the connection and fixation between the back cover and the back panel have generally been fixed with screws for a long time. The number of screws is from 14 to 17. With the development of the market, the cost competition among various TV brands has become increasingly fierce, and the space for cost compression has become smaller and smaller. When using the screw fixation method, each screw is tightened one by one by machine or manually, and the assembly working hours are too long. Even when using robots or robotic arms to tighten the screws synchronously at multiple stations, the equipment cost and implementation difficulty are also relatively high. This application provides a display device to solve the above technical problems.

[0053] For the convenience of description and understanding, taking the state when the display device is placed upright as a reference, the vertical direction is the up and 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 and right direction. The front is the side where the display device displays image information, and the direction facing away from the front is the back. In this application, the front is the front side.

[0054] Figure 1 It is a schematic structural diagram of an embodiment of the display device of the present utility model.

[0055] Refer to Figure 1 In this embodiment, a display device is provided, which mainly includes a back panel 100, a display panel (not shown in the figure) installed on the front of the back panel 100, and a back cover 200 detachably installed on the back of the back panel 100. The display device is a TV or a computer monitor, etc. The following will take a TV as an example for description.

[0056] There is a light source and an optical film stack between the back panel 100 and the display panel. The light source, the optical film stack, and the display panel are arranged in sequence from back to front. The light emitted by the light source is projected onto the display panel after passing through the optical film stack, and through the action of the display panel, image information is displayed on the display panel. The front side of the display panel is the display surface.

[0057] The back panel 100 is the main support member of the display device, and the back panel 100 is arranged in the vertical direction; a forwardly protruding frame is formed on the peripheral edge of the back panel 100; the frame is arranged circumferentially and extends around the edge of the back panel 100. The frame protrudes forward beyond the front side of the back panel 100, and the frame and the back panel 100 enclose an installation cavity with an open front side for installing the backlight source and the optical film stack. The display panel is fixed to the front end of the frame.

[0058] In this embodiment, the back panel 100 is a structure made of a metal material, such as iron or aluminum alloy. By using the back panel 100 made of a metal material, on the basis of ensuring the structural strength of the back panel 100, the back panel 100 has a smaller thickness, so that the display device can be designed to be thinner.

[0059] The frame can be a middle frame that fixes the peripheral edge of the backplane 100. The middle frame wraps the edge of the backplane 100, and the middle frame surrounds the four peripheral edges of the backplane 100. In some embodiments, the frame and the backplane 100 are integrally formed, and the edge of the backplane 100 extends forward to form the frame, and the frame is arranged circumferentially.

[0060] 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 for emitting light towards 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 emitting side in front of the optical film group.

[0061] The backlight source is an LED light board. The LED light board is attached to the bottom surface of the installation cavity, and the LED light board emits white light forward towards 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 direction to form a light mixing distance. In other embodiments, the backlight source and the optical film group are attached in the up and down direction.

[0062] The optical film group is arranged in front of the backlight source and has a gap with the backlight source, and is used 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 sheets, or the plurality of films include a plurality of prism sheets.

[0063] The display panel is located in front of the optical film group. The light in the optical film group is transmitted forward to the display panel. The liquid crystal molecules in the display panel are deflected under the stimulation of an electric field, reducing the light passing rate of the light emitted from the optical film group into the liquid crystal panel, and then projecting the light onto different color filter films to form an image.

[0064] The rear case 200 is arranged on the rear side of the backplane 100. A cavity is formed between the front side of the rear case 200 and the rear side of the backplane 100. A main board, a power board and other driving components are arranged in the cavity. The main board, the power board and other driving components are within the enclosure range of the rear case 200 to protect the components in the rear case 200 through the rear case 200.

[0065] Among them, the main board is mainly used for performing operations on the control system of the display device and correspondingly outputting relevant operation instructions. The main board has a large number of electronic components, and mainly transmits the operation instructions output by the main board to the corresponding operation ends.

[0066] The power board is separately arranged or integrated on the main board and is fixed on the back of the backplane 100, and is mainly used to provide a driving voltage or a stable working voltage to the main board and keep the output current stable when the circuit on the main board works.

[0067] Other driving components include a speaker, a socket strip, etc. The speaker is arranged on the back surface of the back plate 100 and is mainly used to cooperate with the interface displayed on the display panel to emit corresponding sounds. Multiple different types of interfaces are arranged on the socket strip 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 main board. Other driving components may be structures such as a remote control module or a voice module.

[0068] Figure 2 It is a schematic structural diagram of one perspective of the back plate of the present utility model. Figure 3 It is a schematic structural diagram of another perspective of the back plate of the present utility model. Figure 4 Is Figure 2 The enlarged view of part A in Figure 5 Is Figure 2 The enlarged view of part B in Figure 6 It is a partial schematic structural diagram of the back plate of the present utility model.

[0069] Refer to Figures 1 to 6 , a display panel for displaying image information is arranged on the front side of the back plate 100; a protruding limiting protrusion 110 is arranged on the back surface of the back plate 100. The limiting protrusion 110 is arranged on the side of the back plate 100 facing away from the display panel for limiting the rear shell 200.

[0070] In this embodiment, the back plate 100 is a structure made of a metal sheet metal part. In some embodiments, the back plate 100 can be made of other materials such as plastic.

[0071] The limiting protrusion 110 protrudes from the back surface of the back plate 100, and at least one side in the left - right direction of the limiting protrusion 110 is open, so that the limiting protrusion 110 forms a clamping hole that is open on one side in the left - right direction.

[0072] In this embodiment, the limiting protrusion 110 is formed by stamping on the back surface of the back plate 100. Three sides of the limiting protrusion 110 are connected to the back plate 100, and one side is open.

[0073] In some embodiments, the limiting protrusion 110 can be fixed on the back surface of the back plate 100 by means such as welding.

[0074] Multiple limiting protrusions 110 are arranged. The multiple limiting protrusions 110 include a first limiting protrusion 111 and a second limiting protrusion 112; the same sides of the multiple first limiting protrusions and the second limiting protrusions on the same rear shell are open; the first limiting protrusion 111 is close to the left - right edges of the back plate 100, the second limiting protrusion 112 is arranged on the side of the first limiting protrusion 111 facing the center of the display device, and the rear side surface of the second limiting protrusion 112 extends backward beyond the rear side surface of the first limiting protrusion 111. The second limiting protrusion is far from the edge of the back plate 100. The opening direction of the limiting protrusion 110 is the direction in which the second limiting protrusion faces the first limiting protrusion.

[0075] The distance between the rear side surface of the second limiting protrusion and the display surface is greater than the distance between the rear side surface of the first limiting protrusion and the display surface.

[0076] On the back surface of the back plate 100, a protruding support rib 120 is formed. In this embodiment, the back plate 100 is a structure made of a metal material, and the support rib 120 is formed by stamping and bending on the back plate 100.

[0077] In some embodiments, a protruding structure is formed by stamping on the back surface of the back plate 100, and the upper surface of the protruding structure forms the support rib 120.

[0078] In this embodiment, the support rib 120 extends vertically, and the upper end of the support rib 120 extends away from the edge of the back plate 100 in the upward direction. The bending direction of the support rib 120 is away from the opening direction of the limiting protrusion 110.

[0079] In some embodiments, the support rib 120 extends in the left - right direction. The upper surface of the support rib 120 includes a guiding section and a supporting section. The supporting section is connected to the side of the guiding section away from the edge of the back plate 100. The guiding section is inclined downward in the direction towards the edge of the back plate 100. When the rear shell 200 is installed on the back plate 100, the rear shell 200 slides from the guiding section towards the supporting section in the left - right direction.

[0080] In this embodiment, a protruding rib 130 is formed on the back surface of the back plate. The second limiting protrusion protrudes from the rear side surface of the rib 130. The sum of the heights H of the rib 130 and the second limiting protrusion is greater than 30 mm, so that a circuit board can be placed between the rear shell and the back plate. The sum of the heights of the rib and the second limiting protrusion is H, and the distance between the second limiting protrusion and the edge of the back plate is L, where the ratio of H to L is less than 0.22, so that the edge of the rear shell and the side surface of the display device have a smooth transition.

[0081] Figure 7 It is a schematic diagram of the cooperation between the bottom plate and the rear shell of the present utility model. Figure 8 It is a schematic diagram of the structure of the bottom plate of the present utility model.

[0082] Refer to Figure 7 and Figure 8 , the display device may further include a bottom plate 300. The bottom plate 300 is disposed at the bottom of the back plate 100 and covers the bottom of the display panel. The bottom plate 300 extends in the left - right direction to cover the bottom of the back plate 100 and the display panel.

[0083] In one embodiment, the bottom plate is a lower front shell. In some other embodiments, the bottom plate is a plate - like structure disposed at the bottom of the display device.

[0084] The bottom plate extends in the left - right direction to at least one end face on the left and right sides of the display device. In this embodiment, the left and right ends of the bottom plate extend to the left and right ends of the display device respectively.

[0085] In this embodiment, the bottom plate 300 includes a front plate 310 and a lower plate 320 that bends backward and extends from the lower end of the front plate 310. The lower plate 320 extends backward. In some embodiments, the bottom plate 300 may only include the lower plate 320.

[0086] A sliding groove 330 is provided at the rear end of the bottom plate 300. Specifically, the sliding groove 330 is provided on the lower plate 320. The sliding groove 330 can be opened on the upper surface, lower surface or rear end face of the bottom plate 300. The sliding groove extends in the left - right direction to at least one end face on the left and right sides of the display device.

[0087] Figure 9 It is a partial structural schematic diagram of the rear shell of the present utility model. Figure 10 is Figure 9 The enlarged view at position C in Figure 11 is Figure 9 The enlarged view at position D in Figure 12 It is a partial structural schematic diagram of the rear shell of the present utility model.

[0088] Refer to Figures 1 to 12 , in this embodiment, the display device may include a rear shell 200, and the rear shell 200 is used to be attached to the back of the back plate 100. A protruding limit buckle 210 is formed on the front side surface of the rear shell 200, and the end of the limit buckle 210 extends in the left - right direction; the rear shell 200 can move relative to the back plate 100 in the left - right direction so that the limit buckle 210 is detachably engaged in the opening of the limit protrusion 110, driving the rear shell 200 to be attached to the back of the back plate 100.

[0089] The extending direction of the end of the limit buckle 210 is opposite to the opening direction of the limit protrusion 110, so that the limit buckle 210 can pass through and overlap in the opening of the limit protrusion 110.

[0090] In this embodiment, a plurality of limit buckles 210 are provided to correspond to a plurality of limit protrusions 110.

[0091] The rear side wall of the rear shell 200 is inclined forward or bends and extends in the direction towards the left and right edges, so that the front end of the limit buckle 210 near the left and right edges of the rear shell 200 is more forward.

[0092] In this embodiment, the rear side of the first limiting protrusion near the edge of the back plate 100 is located in front of the rear side of the second limiting protrusion, so as to facilitate the left and right edges of the rear case 200 to tilt forward or bend forward, so that after the rear case 200 is attached to the back of the back plate 100, the left and right sides of the display device have a smaller thickness, making the left and right sides of the display device thinner, thereby improving the user experience and satisfaction.

[0093] The limiting buckle includes a first limiting buckle for engaging with the first limiting protrusion and a second limiting buckle for engaging with the second limiting protrusion; the distance between the rear case and the display surface at the position of the second limiting buckle is greater than the distance between the rear case and the display surface at the position of the first limiting buckle, so that the edge of the display device has a smaller thickness.

[0094] In one embodiment, the height of the second limiting protrusion is greater than the height of the first limiting protrusion

[0095] In another embodiment, the height of the second limiting buckle is greater than the height of the first limiting buckle.

[0096] In a specific embodiment, the height of the second limiting protrusion is greater than the height of the first limiting protrusion, and the height of the second limiting buckle is greater than the height of the first limiting buckle. In this embodiment, a protruding support rib 120 is formed on the back surface of the back plate 100, and a protruding support protrusion 220 is formed on the front side surface of the rear case 200; the lower end of the support protrusion 220 abuts against the upper end of the support rib 120 and can slide along the upper end of the support rib 120.

[0097] The support and sliding of the support protrusion 220 on the front side surface of the rear case 200 at the upper end of the support rib 120 can play a supporting role when the rear case 200 slides relative to the back plate 100 in the left and right directions, facilitating the sliding of the rear case 200 relative to the back plate 100 in the left and right directions and facilitating the installation and disassembly of the rear case 200.

[0098] In this embodiment, the upper surface of the lower end of the rear case 200 overlaps on the bottom plate 300 or the back plate 100. The lower surface of the support protrusion 220 on the front side surface of the rear case 200 supports on the upper end of the support rib 120, so as to be able to limit the up and down movement of the rear case 200.

[0099] A protruding stop portion 221 is formed on the lower surface of the support protrusion 220. When the rear case 200 moves relative to the back plate 100 in the left and right directions, the limiting buckle 210 is engaged with the limiting protrusion 110, and the stop portion 221 stops at one side of the support protrusion 220 in the left and right directions, restricting the left and right movement of the rear case 200.

[0100] The stopping portion 221 stops on one side of the supporting rib 120. In this embodiment, the rear case 200 slides in the first direction in the left - right direction, so that the rear case 200 is engaged with the limiting protrusion 110. The side of the limiting protrusion 110 facing away from the first direction is open. The stopping portion stops at one end of the supporting rib 120 in the first direction.

[0101] In this embodiment, the supporting rib 120 extends vertically. The supporting protrusion 220 supports on the upper end of the supporting rib 120. The supporting rib 120 is inclined in the upward direction.

[0102] In some embodiments, the supporting rib 120 extends in the left - right direction. The upper surface of the supporting rib 120 includes a guiding section and a supporting section. The supporting section is connected to the side of the guiding section facing away from the edge of the back plate 100. The guiding section is inclined downward in the direction towards the edge of the back plate 100. When the rear case 200 is installed on the back plate 100, the rear case 200 slides from the guiding section towards the supporting section in the left - right direction.

[0103] The guiding section is inclined downward in the direction facing away from the supporting section. When the rear case 200 is installed, the rear case 200 slides from the guiding section towards the supporting section in the left - right direction. The inclination of the guiding section facilitates the contact and cooperation between the supporting protrusion 220 and the supporting rib 120.

[0104] When the rear case 200 is installed, the moving direction of the rear case 200 in the left - right direction is from the guiding section towards the supporting section. The rear case 200 moves in the left - right direction, so that the supporting protrusion 220 slides along the supporting rib 120. When the limiting buckle 210 is engaged with the limiting protrusion 110, the stopping portion stops on the side of the supporting section facing away from the guiding section, restricting the movement of the rear case 200.

[0105] Figure 13 It is a schematic structural diagram of the rear case of the present utility model. Figure 14 is Figure 13 the enlarged view of E in Figure 15 is Figure 13 the enlarged view of F in Figure 16 It is a cross - sectional view of the connection between the rear case and the bottom plate of the present utility model. Figure 17 It is another cross - sectional view of the connection between the rear case and the bottom plate of the present utility model.

[0106] Refer to Figures 1 to 17 , a sliding groove 330 is provided at the rear end of the bottom plate 300. An extension plate 230 extending forward is formed at the bottom of the rear case 200. The front side or the rear side of the extension plate 230 abuts against the side wall of the sliding groove 330 and can slide along the sliding groove 330 in the left - right direction.

[0107] The front side or the rear side of the extension plate 230 on the rear shell 200 abuts against the side wall of the sliding groove 330 for positioning the position of the rear shell 200 in the up-and-down direction. The rear shell 200 is attached to the back surface of the back plate 100 to position the rear shell 200 in the front-and-rear direction. The rear shell 200 can move relative to the back plate 100 in the left-and-right direction, and the rear shell 200 can slide in the left-and-right direction along the sliding groove 330, so as to drive the limit buckle 210 to be detachably engaged in the opening of the limit projection 110 on the back surface of the back plate 100, and drive the rear shell 200 to be attached to the back surface of the back plate 100 to limit the rear shell 200 on the back surface of the back plate 100. The rear shell 200 can slide in the left-and-right direction, so that the rear shell 200 is limited on the back surface of the back plate 100. The limitation of the rear shell 200 on the back surface of the back plate 100 can reduce the use of screws on the back surface of the rear shell 200, facilitate the installation of the rear shell 200 on the back surface of the back plate 100, and improve the installation efficiency.

[0108] In this embodiment, the lower part of the sliding groove 330 is open, the front end of the extension plate 230 extends upward and fits on the side wall of the sliding groove 330, and the front end of the extension plate 230 abuts against the rear side surface of the sliding groove 330, restricting the movement of the extension plate 230 in the front-and-rear direction and the upward movement of the extension plate 230, and effectively avoiding cracking between the front end of the extension plate 230 and the bottom plate 300.

[0109] In some embodiments, the upper end of the sliding groove 330 is open, the front end of the extension plate 230 extends downward and fits on the side wall of the sliding groove 330, and the front end of the extension plate 230 abuts against the rear side wall of the sliding groove 330.

[0110] In other embodiments, the rear end of the sliding groove 330 is open, the front end of the extension plate 230 extends into the sliding groove 330, and the upper side surface or the lower side surface of the front end of the extension plate 230 fits on the upper side wall or the lower side wall of the sliding groove 330, restricting the positions of the extension plate 230 and the rear shell 200 in the up-and-down direction.

[0111] In this embodiment, the lower end of the sliding groove 330 is open, and a protruding limit clamping protrusion 240 is formed on the upper surface of the front end of the extension plate 230; the limit clamping protrusion 240 extends upward into the sliding groove 330, and the rear end of the limit clamping protrusion 240 fits on the rear side surface of the sliding groove 330.

[0112] The rear side surface of the limit clamping protrusion 240 is limited on the rear side wall of the sliding groove 330, so as to be able to restrict the backward movement of the extension plate 230.

[0113] A plurality of limit clamping protrusions 240 are arranged on the extension plate 230 at intervals in the left-and-right direction. The rear side surface of the limit clamping protrusion 240 is a vertical plane, and the rear side wall of the sliding groove 330 is a vertical plane. On the premise of maintaining the reliability of the limit between the rear side surface of the limit clamping protrusion 240 and the rear side wall of the sliding groove 330, it is also convenient for the limit clamping protrusion 240 to disengage from the sliding groove 330 downward.

[0114] A chamfer 331 is provided at the lower edge of the rear end of the bottom plate 300; the front side surface of the limit clamping protrusion 240 is a guiding inclined surface 241 extending upward and backward.

[0115] In this embodiment, when installing the rear shell 200, the rear shell 200 moves forward, so that the front edge of the rear shell 200 fits against the back surface of the back plate 100, and the chamfer 331 and the guiding inclined surface 241 on the limit clamping protrusion 240 are matched, so that the limit clamping protrusion 240 can extend into the sliding groove 330.

[0116] A stop protrusion 250 is further provided on the extension plate 230. The stop protrusion 250 is located above the limit clamping protrusion 240. The stop protrusion 250 is used to stop against the upper end of the rear end of the bottom plate 300 to prevent the rear shell from slipping out of the sliding groove during the sliding installation, and can limit the upward movement of the extension wall after the rear shell is installed.

[0117] The stop of the stop protrusion against the rear end of the bottom plate 300 can effectively limit the upward movement of the bottom plate 300. The limit clamping protrusion 240 on the extension plate 230 can extend upward into the sliding groove 330. The front end of the extension plate 230 is located below the rear end of the bottom plate 300, and the stop protrusion is located above the rear end of the lower front shell, so that the rear end of the extension plate 230 is limited in the vertical direction between the front end of the extension plate 230 and the stop protrusion. One or more stop protrusions are arranged at intervals in the left-right direction.

[0118] In this embodiment, an avoidance groove 260 is formed on the upper surface of the rear end of the extension plate 230. The upper end and the front end of the avoidance groove 260 are open; the rear end of the bottom plate 300 is located in the avoidance groove 260.

[0119] In this embodiment, the extension plate 230 includes an extension portion 231 and a clamping portion 232 connected to the front end of the extension portion 231; the clamping portion 232 protrudes from the front end of the extension portion 231. The clamping portion 232 is connected to the front end surface of the extension portion 231, and the upper end surface of the clamping portion 232 is lower than the front end of the extension portion 231, so that the avoidance groove 260 is formed between the front end surface of the extension portion 231 and the upper surface of the clamping portion 232.

[0120] The limit clamping protrusion 240 is formed on the upper surface of the clamping portion 232, and the stop protrusion is formed on the front end surface and the upper surface of the extension portion 231.

[0121] Figure 18 It is a schematic structural diagram of the first rear shell of the present utility model. Figure 19 It is a schematic structural diagram of the second rear shell of the present utility model. Figure 20 It is Figure 19 The enlarged view at H in

[0122] Refer to Figures 1 to 20, the rear housing 200 includes a first rear housing 201 and a second rear housing 202. The limit buckle 210 is provided on the front side of the first rear housing 201; the first rear housing 201 is slidably arranged on the back of the back plate 100 in the left - right direction; a card slot 270 is provided on the rear side of one edge of the first rear housing 201 in the left - right direction, and the card slot 270 extends vertically.

[0123] In one embodiment, there is one first rear housing 201 and one second rear housing 202. A card slot 270 is provided on the side of the first rear housing 201 facing the second rear housing 202.

[0124] In another embodiment, there are two first rear housings 201 and one second rear housing 202. Card slots 270 are respectively provided on the sides of the two first rear housings 201 facing the second rear housing 202.

[0125] The second rear housing 202 can move relative to the back plate 100 in the up - down direction. A card strip 280 extending vertically is provided on one edge of the second rear housing 202 facing the first rear housing 201; the card strip 280 is snapped into the card slot 270 and can move up and down along the card strip 280.

[0126] In this embodiment, the edge of the second rear housing 202 facing the first rear housing 201 overlaps the rear side of the edge of the first rear housing 201, and the card strip 280 protrudes from the front side of the edge of the second rear housing 202. The card strip 280 and the card slot 270 both extend vertically. During the process of the first rear housing 201 moving upward, the card strip 280 moves upward in the card slot 270.

[0127] The cooperation between the card strip 280 and the card slot 270 can effectively ensure the reliable connection between the first rear housing 201 and the second rear housing 202.

[0128] On both left and right sides of the card strip 280, engaging protrusions 281 are respectively formed. One end of the engaging protrusion 281 facing away from the card strip 280 abuts against the side wall of the card slot 270. The engaging protrusions 281 on both left and right sides of the card strip 280 respectively abut against the side wall of the card slot 270, thereby effectively ensuring the tight and reliable engagement of the card strip 280 in the card slot 270.

[0129] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0130] In this application, unless otherwise clearly specified and defined, terms such as "assembly" and "connection" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In the description of this specification, the description referring to terms such as "some embodiments" and "exemplarily" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0131] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and the description of this application shall fall within the scope covered by the patent of this application.

Claims

1. A display device, characterized in that: include: A back plate, a display panel for displaying image information is arranged on the front side thereof, and the front side of the display panel is a display surface; a protruding limiting protrusion is formed on the back side of the back plate, and at least one side of the limiting protrusion is open in the left and right directions; the left and right directions are parallel to the lateral direction of the display panel; A rear shell is used to fit on the back of the back plate; a protruding limit buckle is formed on the front side of the rear shell, and the end of the limit buckle extends in the left-right direction; the rear shell can move relative to the back plate in the left-right direction, so that the limit buckle can be detachably engaged in the opening of the limit protrusion, driving the rear shell to fit on the back of the back plate; Wherein, there are multiple limiting protrusions, and the multiple limiting protrusions include a first limiting protrusion and a second limiting protrusion; the openings of the first limiting protrusion and the second limiting protrusion are on the same side; the first limiting protrusion is close to the left and right edges of the back plate, and the second limiting protrusion is arranged on the side of the first limiting protrusion facing the middle of the display device, and the distance between the rear side surface of the second limiting protrusion and the display surface is greater than the distance between the rear side surface of the first limiting protrusion and the display surface; the limiting buckle includes a first limiting buckle for engaging with the first limiting protrusion, and a second limiting buckle for engaging with the second limiting protrusion; the distance between the rear shell and the display surface at the position of the second limiting buckle is greater than the distance between the rear shell and the display surface at the position of the first limiting buckle.

2. The display device according to claim 1, characterized in that A protruding rib is formed on the back side of the back plate, the second limiting protrusion protrudes from the rear side of the rib, and the sum of the heights of the rib and the second limiting protrusion is greater than 30 mm.

3. The display device according to claim 2, characterized in that: The sum of the heights of the rib and the second limiting protrusion is H, the distance between the second limiting protrusion and the edge of the back plate is L, and the ratio of H to L is less than 0.

22.

4. The display device according to claim 1, characterized in that The height of the second limiting protrusion is greater than the height of the first limiting protrusion, and / or, The height of the second limiting buckle is greater than the height of the first limiting buckle.

5. The display device according to claim 1, characterized in that The bottom of the display device is provided with a bottom plate extending in a direction, a slide groove is provided at the rear end of the bottom plate, and an extension plate extending forward is formed at the lower part of the rear shell; the front side or rear side of the extension plate abuts against the side wall of the slide groove, and can slide along the slide groove in the left and right directions, wherein the lower part is the lower part of the display device when it is normally placed in use.

6. The display device according to claim 5, characterized in that: The bottom plate extends along the left-right direction to at least one end surface on the left or right side of the display device; the slide groove is provided on the bottom surface of the bottom plate, and the slide groove extends along the left-right direction to at least one end surface on the left or right side of the display device; A protruding limiting convex is formed on the upper surface of the front end of the extension plate; the limiting convex extends upward into the slide slot, and the rear end of the limiting convex is attached to the rear side surface of the slide slot.

7. The display device according to claim 6, characterized in that: The lower edge of the rear end of the bottom plate is provided with a chamfer; the front side surface of the limit clamping protrusion is a guiding inclined surface extending upward and backward.

8. The display device according to claim 7, characterized in that: The extension plate is also provided with a stop protrusion, the stop protrusion is located above the limit clamping protrusion, and the stop protrusion is used to stop at the upper end of the bottom plate to prevent the rear shell from escaping from the sliding groove when the rear shell is slidably installed.

9. The display device according to claim 8, characterized in that: A position-avoiding groove is formed on the upper surface of the rear end of the extension plate, and the upper end and the front end of the position-avoiding groove are open; the rear end of the bottom plate is located in the position-avoiding groove.

10. The display device according to claim 1, characterized in that A protruding support rib is formed on the back side of the back plate, and a protruding support protrusion is formed on the front side of the rear shell; the lower end of the support protrusion abuts against the upper end of the support rib and can slide along the upper end of the support rib.

11. The display device according to claim 10, characterized in that: A protruding stop portion is formed on the lower surface of the supporting protrusion, and when the rear shell moves in the left-right direction relative to the back plate, the limiting buckle is engaged with the limiting protrusion, and the stop portion is stopped on one side of the supporting protrusion in the left-right direction, thereby limiting the movement of the rear shell in the left-right direction.

12. The display device according to claim 1, characterized in that: The rear shell includes a first rear shell and a second rear shell, the limit buckle is arranged on the front side of the first rear shell; the first rear shell is slidably arranged on the back side of the back plate in the left and right directions; a card slot is arranged on the rear side of one side edge of the first rear shell in the left and right directions, and the card slot extends vertically; the second rear shell can move relative to the back plate in the up and down directions, and the second rear shell is provided with a vertically extending card strip on one side edge facing the first rear shell; the card strip is engaged and extends into the card slot, and can move up and down along the card strip.

13. The display device according to claim 12, characterized in that: The left and right sides of the clamping strip are respectively protruded to form clamping protrusions; one end of the clamping protrusion facing away from the clamping strip abuts against the side wall of the clamping slot.

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