Display device

Abstract

The utility model provides a display device. The display device comprises a backboard, a rear shell, a PCB, a grounding piece and a bolt. Due to the arrangement of the grounding piece on the back plate of the PCB, the thickness of the PCB at the through hole is increased. Compared with the prior art that the screw directly penetrates through the PCB, the display device has the advantages that the screw penetrates through the grounding piece, so that the front end of the screw moves backwards, the screw is effectively prevented from being in contact with a component on the front side of the back plate, and the installation safety of the display device is guaranteed. The grounding piece comprises a first grounding layer and a second grounding layer which are attached to each other, the first grounding layer and the second grounding layer are provided with a connecting part, and under the condition that the requirement for the same grounding thickness between the screw head and the PCB is met, due to the fact that the first grounding layer and the second grounding layer which are attached to each other are formed through bending, the thickness of the grounding piece is reduced. The grounding piece can be supported by a thin material, so that the material cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of home appliance technology, and in particular to a display device. Background Technology

[0002] With technological advancements and evolving aesthetic preferences, display devices are trending towards thinner designs to enhance user experience and meet aesthetic demands. The back panel of a display device houses circuit boards (PCBs) such as power boards or main control boards, which are used for the device's operation.

[0003] In related technologies, screws of different lengths are required when assembling display devices. For example, screws of different lengths are generally used when installing the back cover and the PCB board. In particular, when installing the PCB board, if the screw is too long, the tip of the screw may abut or pierce the components on the front side of the back panel, causing damage to the corresponding components and resulting in certain economic losses. Utility Model Content

[0004] The purpose of this utility model is to provide a display device that can increase the thickness of the PCB board at the grounding plate, effectively prevent screws from contacting the components on the front side of the back plate, and ensure the installation safety of the display device.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] According to one aspect of the present invention, a display device is provided, including a back plate, a rear shell, a PCB board, a grounding plate, and bolts; a fixing hole is provided on the back side of the back plate; the rear shell covers the back side of the back plate; an accommodating space is formed between the front side of the rear shell and the rear side of the back plate; the PCB board is accommodated in the accommodating space; and a through hole is provided on the PCB board.

[0007] A grounding plate is fixed to the side of the PCB board facing away from the backplate; a through hole is provided on the grounding plate, and the through hole communicates with the through hole; the grounding plate is used to connect a grounding wire; the grounding plate includes a first grounding layer and a second grounding layer that are attached to each other, and a connecting part is provided between the first grounding layer and the second grounding layer; the through hole penetrates the first grounding layer and the second grounding layer; a bolt passes through the fixing hole, the through hole and the through hole, and is threaded into the fixing hole; the side of the bolt facing the backplate is attached to the grounding plate.

[0008] The above-mentioned technical features have at least the following technical and beneficial effects:

[0009] The grounding plate on the back of the PCB increases the thickness of the PCB at the through-holes. Compared to existing technologies where screws are directly inserted into the PCB, in this application, the screws pass through the grounding plate, causing the screw tip to move backward, effectively preventing the screw from contacting components on the front side of the back panel and ensuring the installation safety of the display device.

[0010] At the same time, by setting the grounding plate, the same type of screw can be used to fix the PCB and other structures on the display device, reducing the types of screws used on the display device.

[0011] The grounding plate includes a first grounding layer and a second grounding layer that are attached to each other. The first grounding layer and the second grounding layer are formed by bending. The connecting part connects the first grounding layer and the second grounding layer. Under the condition of meeting the same grounding thickness requirement between the screw head and the PCB board, the grounding plate of this application can be supported by a thinner material due to the first grounding layer and the second grounding layer that are attached to each other by bending, thus saving material costs. At the same time, due to the existence of the connecting part, even if the first grounding layer and the second grounding layer are not tightly attached after bending, grounding can still be completed through the connection part.

[0012] In some embodiments of this application, a limiting hole is formed on the side of the PCB board facing away from the back plate, and the limiting hole is located close to the through hole; the grounding plate has protruding pins, and the pins are engaged in the limiting hole.

[0013] The above-mentioned technical features have at least the following technical and beneficial effects:

[0014] A limiting hole is made on the side of the PCB board facing away from the backplate. The pins are engaged in the limiting hole to facilitate the positioning of the grounding plate on the PCB board.

[0015] In some embodiments of this application, the pin is a structure formed by bending on the grounding plate.

[0016] The above-mentioned technical features have at least the following technical and beneficial effects:

[0017] The leads are bent to form a grounding plate, and are integrally formed onto the grounding plate through bending, facilitating rapid manufacturing of the grounding plate. The grounding plate includes a first grounding layer and a second grounding layer formed by bending, with the leads formed on either grounding layer. The leads are thin. The thinner material, integrally bent, results in smaller leads, requiring smaller pin holes on the PCB board, thus minimizing the space occupied in the PCB layout and promoting PCB layout optimization.

[0018] In some embodiments of this application, the grounding plate is a structure made of metal material; the grounding plate includes pins integrally bent and formed on the grounding plate, the pins being used to fix the grounding plate on the PCB board; the first grounding layer is bent relative to the second grounding layer to form the connecting portion; at least one pin and the connecting portion are located on both sides of the through hole in the radial direction along the through hole.

[0019] The above-mentioned technical features have at least the following technical and beneficial effects:

[0020] Both the pins and the connection are formed on the grounding plate by bending. The two bends are far apart to reduce the impact of strain on the flatness of the area near the through hole and reduce the probability of grounding electrical degradation.

[0021] In some embodiments of this application, the grounding plate is a structure made of metal material; the grounding plate includes pins integrally bent and formed on the grounding plate, the pins being used to fix the grounding plate on the PCB board; the pins are disposed at the edge of the second grounding layer; the first grounding layer is located on the side of the second grounding layer opposite to the PCB board.

[0022] The above-mentioned technical features have at least the following technical and beneficial effects:

[0023] The pins are positioned at the edge of the second ground layer, and the first ground layer is located on the side of the second ground layer away from the PCB board. This allows the pins to be fixed as long as the PCB board thickness is met. Compared to the first ground layer being located on the side of the second ground layer facing the PCB board, the pin length saves the thickness of one grounding plate.

[0024] In some embodiments of this application, the back plate has a protruding bulge, and the fixing hole is formed on the bulge; the front side of the back plate has a rearwardly protruding bulge, and the fixing hole is formed on the bulge.

[0025] The above-mentioned technical features have at least the following technical and beneficial effects:

[0026] The convex bulge protrudes backward, and the bolt is fixed to the convex bulge, which makes the front end of the bolt further backward, more effectively preventing the bolt from protruding forward beyond the front side of the back plate.

[0027] In some embodiments of this application, a cavity is formed between the front side of the convex bulge and the back plate, the front end of the bolt is located in the cavity, and the front end of the bolt does not extend beyond the front side of the back plate.

[0028] The above-mentioned technical features have at least the following technical and beneficial effects:

[0029] The front end of the bolt is located inside the recessed cavity, and the front end of the bolt does not extend beyond the front side of the back plate to ensure that the bolt does not interfere with the components on the front side of the back plate.

[0030] In some embodiments of this application, multiple fixing holes, through holes, and through holes are provided respectively.

[0031] The above-mentioned technical features have at least the following technical and beneficial effects:

[0032] The design incorporates multiple mounting holes, through holes, and vias to ensure a more secure fixation of the PCB board to the backplate.

[0033] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0034] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0035] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0036] Figure 1 This is a schematic diagram of the structure of the display device of this utility model.

[0037] Figure 2 yes Figure 1 An exploded view of the structure shown.

[0038] Figure 3 This is a schematic diagram of the connection of the PCB board of this utility model on the back plate.

[0039] Figure 4 This is a schematic diagram of the structure of the back plate of this utility model.

[0040] Figure 5 This is a partial sectional view of the back plate of this utility model.

[0041] Figure 6 This is a structural schematic diagram of the PCB board of this utility model.

[0042] Figure 7 This is a schematic diagram of the connection of the grounding plate of this utility model on PCB board 400.

[0043] Figure 8 This is a schematic diagram of the grounding plate of this utility model from one perspective.

[0044] Figure 9 This is a structural schematic diagram of the grounding plate of this utility model from another perspective.

[0045] The reference numerals in the attached drawings are explained as follows: 100, back plate; 110, mounting hole; 120, protrusion; 130, cavity; 140, nut post; 200, display panel; 210, backlight; 220, optical film assembly; 300, back cover; 400, PCB board; 410, perforation; 500, grounding plate; 501, first grounding layer; 502, second grounding layer; 510, through hole; 520, pin; 530, connecting part. Detailed Implementation

[0046] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0047] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0048] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.

[0049] For ease of description and understanding, with reference to the state of the display device in use, the side of the display device facing the user is the front, and the side of the back panel 100 facing the user is the back.

[0050] Figure 1 This is a schematic diagram of the structure of the display device of this utility model. Figure 2 yes Figure 1 An exploded view of the structure shown.

[0051] See Figure 1 and Figure 2This embodiment provides a display device, which may include a back plate 100. The back plate 100 is the main support component of the display device. A mounting cavity is formed on the front side of the back plate 100 for mounting structures such as a light source and an optical film assembly 220.

[0052] The back panel 100 is arranged vertically. A forward-protruding frame is formed on the peripheral edge of the back panel 100; the frame is circumferentially arranged and extends around the edge of the back panel 100. The frame extends forward beyond the front side of the back panel 100, and the frame and the back panel 100 together form a mounting cavity with a front opening for mounting the backlight 210 and the optical film assembly 220. The display panel 200 is fixed to the front end of the frame.

[0053] The frame can be a middle frame that fixes the periphery of the back panel 100. The middle frame covers the edge of the back panel 100 and surrounds the four periphery of the back panel 100. In some embodiments, the frame and the back panel 100 are integrally formed, and the edge of the back panel 100 extends forward to form the frame, which is circumferentially arranged.

[0054] The specific structure of the backplate 100 is described in the relevant technology and will not be repeated here.

[0055] In other embodiments, the display device may further include a display panel 200, which is fixed to the front side of the back plate 100. The display panel 200 is used to display image information for user viewing. A mounting cavity is formed between the front side of the back plate 100 and the rear side of the display panel 200 by a gap, within which an optical film assembly 220 and a light source are disposed. Light emitted from the light source passes through the optical film assembly 220 and displays image information on the display panel 200.

[0056] The backlight 210 is used to emit light. The backlight 210 and the optical film group 220 are arranged in parallel. The backlight 210 is located on the light-incident side behind the optical film group 220 so as to emit light toward the optical film group 220. The optical film group 220 is located in front of the backlight 210 so that after the light passes through the optical film group 220, uniform white light is obtained on the light-emitting side in front of the optical film group 220.

[0057] In some embodiments, the backlight 210 is an LED light panel, which is attached to the bottom surface of the mounting cavity and emits white light towards the optical film assembly 220. In some embodiments, the backlight 210 and the optical film assembly 220 are spaced apart in the vertical direction to form a light mixing distance. In other embodiments, the backlight 210 and the optical film assembly 220 are attached together in the vertical direction.

[0058] An optical film assembly 220 is disposed in front of and spaced from the backlight 210 to improve the uniformity and brightness of the light source. The optical film assembly 220 includes a diffuser plate and multiple films arranged sequentially. The multiple films may include brightness enhancement plates and multiple prism sheets, or multiple films may include multiple prism sheets.

[0059] The display panel 200 is located in front of the optical film group 220. The light in the optical film group 220 is transmitted forward to the display panel 200. The liquid crystal molecules in the display panel 200 are deflected by the electric field, which reduces the transmittance of the light emitted from the optical film group 220 to the liquid crystal panel, thereby projecting the light into filters of different colors to form an image.

[0060] In some embodiments, the display device may further include a rear housing 300, which is fixed to the back side of the back panel 100. An accommodating space is formed between the front side of the rear housing 300 and the rear side of the back panel 100. Electronic components are disposed on the rear side of the back panel 100, and are located within the accommodating space. The electronic components include a motherboard, a power board, a speaker, and a power strip. The electronic components are fixed to the back side of the back panel 100 and located within the coverage area of ​​the rear housing 300, so that the rear housing 300 can protect the electronic components. The motherboard is mainly used for performing calculations on the control system and correspondingly outputting relevant operation commands. The motherboard is located between the back side of the back panel 100 and the rear housing 300, and is fixed to the back side of the back panel 100.

[0061] In some embodiments, the motherboard is primarily used to perform calculations on the control system of the display device and output relevant operation instructions. The motherboard has a large number of electronic components, mainly responsible for transmitting the operation instructions output by the motherboard to the corresponding operating terminals.

[0062] The power supply board is set separately or integrated on the motherboard and fixed on the back of the backplate 100. It is mainly used to provide the motherboard with drive voltage or stable operating voltage and to keep the output current of the circuits on the motherboard stable when they are working.

[0063] Other driving components include speakers and power strips. The speakers are located on the back of the back panel 100 and are primarily used to produce corresponding sounds in conjunction with the interface displayed on the display panel 200. The power strip has multiple different types of interfaces for connecting external devices to receive or output signals to them. In some embodiments, the power strip is integrated onto the motherboard. Other driving components may be structures such as remote control modules or voice modules.

[0064] In some embodiments, PCB board 400 is a power supply board or a motherboard. In other embodiments, PCB board 400 is both a power supply board and a motherboard.

[0065] Figure 3This is a schematic diagram of the connection between the PCB board 400 and the back plate 100 of this utility model. Figure 4 This is a structural schematic diagram of the back plate 100 of this utility model. Figure 5 This is a partial sectional view of the back plate 100 of this utility model.

[0066] See Figures 3 to 5 The back panel 100 is a structure made of metal. Compared to a plastic back panel 100, a metal back panel 100 can have a smaller thickness while maintaining structural strength, thus allowing the display device to have a smaller thickness in the front-to-back direction.

[0067] The back plate 100 has a fixing hole 110 on its back side for fixing the PCB board 400. The fixing hole 110 is a threaded hole. The bolt passes through the PCB board 400 and is threaded into the fixing hole 110, thereby fixing the PCB board 400 to the back side of the back plate 100.

[0068] In some implementations, a protruding bump 120 is formed on the back side of the back plate 100, and a fixing hole 110 is formed on the bump 120. The fixing hole 110 is formed on the bump 120 so that the fixing hole 110 is located behind the front side of the back plate 100, so as to effectively prevent the bolt in the fixing hole 110 from extending forward beyond the front side of the back plate 100, and effectively prevent the bolt in the fixing hole 110 from interfering with the backlight 210, reflector or optical film group 220 on the front side of the back plate 100.

[0069] The backplate 100 is a metal plate, and the protrusion 120 is a structure formed on the backplate 100 by stamping. The rear end face of the protrusion 120 is a planar structure to support the PCB board 400.

[0070] A protrusion 120 extends rearward from the front side of the back plate 100, and a cavity 130 is formed between the front side of the protrusion 120 and the back plate 100. The front side of the back plate 100 protrudes rearward, while the protrusion 120 is formed on the back side of the back plate 100, and the cavity 130 is formed on the front side of the back plate 100. The front end of the bolt, which is fixed in the fixing hole 110, is located in the cavity 130, and the front end of the bolt does not extend beyond the front side of the back plate 100.

[0071] In some embodiments, a nut post 140 is fixed within the fixing hole 110, and an internal thread is formed on the nut post 140. The back plate 100 is a structure made of metal material. To ensure a smaller thickness of the display device in the front-to-back direction, the back plate 100 has a relatively small thickness. When the fixing hole 110 is formed in the metal back plate 100, and the internal thread is directly formed within the fixing hole 110, the thinness of the metal back plate 100 results in a small axial length of the internal thread, which may lead to insufficient stability of the bolt after fixing. The nut post 140 is provided within the fixing hole 110, and the internal thread is formed on the nut post 140, to make the fixing of the bolt within the fixing hole 110 more stable and reliable.

[0072] The front end of the nut post 140 is located inside the cavity 130 so that the front end of the nut post 140 does not extend beyond the front side of the back plate 100, ensuring that the arrangement of the nut post 140 will not interfere with the components on the front side of the back plate 100.

[0073] In some embodiments, the nut post 140 is not provided in the fixing hole 110, and the internal thread is directly provided on the inner peripheral wall of the fixing hole 110 to facilitate the setting of the internal thread in the fixing hole 110.

[0074] In one embodiment, the nut post 140 is welded into the fixing hole 110. In other embodiments, the nut post 140 is a bone couple stamped on the back plate 100, and the nut post 140 is integrally formed on the back plate 100.

[0075] Figure 6 This is a structural schematic diagram of the PCB board 400 of this utility model.

[0076] See Figures 3 to 6 The PCB board 400 is housed within the space between the back plate 100 and the rear cover 300. The PCB board 400 has through holes 410 extending from front to back. The through holes 410 correspond to fixing holes 110 for securing the PCB board 400 to the back of the back plate 100. Multiple through holes 410 are provided on the PCB board 400, and multiple corresponding fixing holes 110 are provided on the back plate 100.

[0077] The PCB board 400 includes a plate-shaped board body and multiple electrical components disposed on the back of the board body. The rear ends of the electronic components are higher than the back of the board body. The board body has a flat structure, and through holes 410 are formed on the board body and penetrate through the board body.

[0078] When the PCB board 400 is fixed to the back plate 100, the front side of the PCB board 400 is attached to the back plate 100. Specifically, the front side of the PCB board 400 is attached to the rear end face of the boss, the fixing hole 110 is opened on the boss, and the through hole 410 on the PCB board 400 is set corresponding to the fixing hole 110. The bolt passes through the through hole 410 and the fixing hole 110 to fix the PCB board 400 to the back side of the back plate 100.

[0079] Multiple bosses are provided, and the rear ends of the multiple bosses are on the same plane to support the PCB board 400 and support the PCB board 400 on the same plane.

[0080] Figure 7 This is a schematic diagram of the connection of the grounding piece 500 of this utility model on the PCB board 400. Figure 8 This is a structural schematic diagram of the grounding plate 500 of this utility model from one perspective. Figure 9 This is a structural schematic diagram of the grounding plate 500 of this utility model from another perspective.

[0081] See Figures 3 to 9 The display device may also include a grounding plate 500, which is fixed to the side of the PCB board 400 facing away from the back plate 100. The grounding plate 500 is used for grounding wires to discharge static electricity on the PCB board 400. The grounding plate 500 has a preset thickness and is attached to the PCB board 400 to increase the thickness of the PCB board 400 at the grounding plate 500.

[0082] The grounding plate 500 is fixed to the plate body of the grounding plate 500, so that the plate body has a greater thickness at the grounding plate 500. A bolt passes through the grounding plate 500 and the PCB board 400 to fix the PCB board 400 to the back plate 100. The bolt passes through the grounding plate 500, the PCB board 400, and the fixing hole 110 to fix the PCB board 400. The bolt passes through the grounding plate 500, the PCB board 400, and the fixing hole 110, such that the tip of the bolt does not protrude beyond the front side of the back plate 100.

[0083] The perforation 410 is made at the edge or corner of the PCB board 400. The grounding plate is set at the edge or corner of the PCB board to facilitate the fixing of the grounding plate on the PCB and to effectively prevent interference between the grounding plate and the electronic components on the PCB board.

[0084] A through hole 410 is formed on the board. A grounding plate 500 is fixed on the board, and the grounding plate 500 is fixed on the side of the board facing away from the back plate 100. The grounding plate 500 will not exceed the height of the electronic components on the board. The setting of the grounding plate 500 will not affect the overall thickness of the PCB board 400, and will not affect the thickness of the display device.

[0085] The grounding plate 500 has a through hole 510, and the axes of the through hole 510 and the through hole 410 coincide. The bolt passes through the fixing hole 110, the through hole 410 and the through hole 510, and is threaded into the fixing hole 110. The side of the bolt facing the back plate 100 is attached to the grounding plate 500, thereby clamping the grounding plate 500 and the PCB board 400 on the back plate 100.

[0086] The grounding plate 500 is fixed to the side of the PCB board 400 facing away from the back plate 100, increasing the thickness of the PCB board 400 at the grounding plate 500. The grounding plate 500 has a through hole 510, the axis of which coincides with the axis of the through hole 410 on the PCB board 400. Bolts are inserted through the fixing hole 110 on the back plate 100, the through hole 410 on the PCB board 400, and the through hole 510 on the grounding plate 500, and are threaded into the fixing hole 110 to fix the PCB board 400 to the back plate 100.

[0087] The grounding plate 500, positioned on the backplate 100 of the PCB board 400, enhances the thickness of the PCB board 400 at the through-hole 410. By using a longer bolt, the PCB board 400 and backplate 100 are effectively secured together, preventing the bolt's tip from extending beyond the front side of the backplate 100 and avoiding interference with components on the front of the backplate 100. Fixing the PCB board 400 to the backplate 100 does not require additional bolts of a different size, simplifying the mounting process. This also reduces the types of bolts used in the display device, facilitating installation and reducing screw inventory, thus simplifying management.

[0088] In some embodiments, a limiting hole (not shown) is formed on the side of the PCB board 400 facing away from the back plate 100, and a grounding piece 500 has a protruding pin 520 that engages within the limiting hole. The pin 520 engaging within the limiting hole facilitates the positioning of the grounding piece 500 on the PCB board 400.

[0089] The limiting hole is positioned close to the through hole 410, and the pin 520 is engaged in the limiting hole to facilitate positioning between the through hole 410 and the through hole 510.

[0090] One or more limiting holes are provided, and the number of pins 520 corresponds one-to-one with the limiting holes. The cooperation of multiple limiting holes and multiple pins 520 makes the grounding component more stably fixed on the PCB board 400.

[0091] In one embodiment, after the pin 520 passes through the limiting hole on the back plate 100, the grounding piece 500 is fixed to the back plate 100 by soldering, so that the grounding piece 500 and the back plate 100 are connected as one unit. In other embodiments, the grounding piece 500 is limited to the PCB board 400 by means of adhesive or other methods.

[0092] In some embodiments, pin 520 is a structure formed by bending on ground piece 500. Pin 520 is integrally formed on ground piece 500 by bending to facilitate rapid manufacturing of ground piece 500.

[0093] In some embodiments, the grounding plate 500 includes a first grounding layer 501 and a second grounding layer 502 that are bonded together. The first grounding layer 501 and the second grounding layer 502 are formed by bending. A through hole 510 penetrates the first grounding layer 501 and the second grounding layer 502. The grounding plate 500 is a structure made of metal material and has a predetermined thickness. The first grounding layer 501 and the second grounding layer 502 are formed by bending, and the first grounding layer 501 and the second grounding layer 502 are bonded together after bending, which increases the thickness of the grounding plate 500. By folding, the thickness of the grounding plate 500 is increased to accommodate the length of the bolt.

[0094] While meeting the same grounding thickness requirement between the screw head and the PCB board, the grounding sheet of this application can be made of a thinner material due to the mutually adhering first grounding layer 501 and second grounding layer 502 formed by bending, thus saving material costs. In some specific embodiments, the grounding sheet 500 includes two, three, and four layers folded together.

[0095] In one embodiment, the grounding plate is a structure made of metal, and further includes a connecting portion 530 formed by bending the first grounding layer 501 relative to the second grounding layer 502. The pin is integrally bent onto the grounding plate, and the connecting portion 530 is integrally bent onto the grounding plate 500. At least one pin 520 and the connecting portion 530 are located on opposite sides of the through-hole along the radial direction of the through-hole, with the two bends (the bend of the pin and the bend of the connecting portion) far apart, reducing the impact of strain on the flatness of the area near the through-hole and reducing the probability of grounding degradation. In another embodiment, the grounding plate 500 is a structure made of metal, and includes a pin 520 integrally bent onto the grounding plate for fixing the grounding plate to the PCB board. The pin is located at the edge of the second grounding layer 502; the first grounding layer 501 is located on the side of the second grounding layer 502 facing away from the PCB board. This allows for fixing while ensuring the pin length meets the PCB board thickness, saving one layer of grounding plate thickness compared to the first grounding layer 501 being located on the side of the second grounding layer 502 facing the PCB board. The bolt includes a shank and a head fixed to one end of the shank. The shank has a fixing hole 110, a through hole 410, and a through hole 510, and is threaded into the fixing hole 110. The head protrudes radially from one end of the shank, and the side of the shank facing the back plate 100 is attached to the grounding plate 500, clamping the PCB board 400 and the grounding plate 500 between the head and the boss of the back plate 100. It should be noted that the bolt can also be a screw.

[0096] The front end of the bolt passes through the fixing hole 110 of the back plate 100 and is threaded into the fixing hole 110. Specifically, the front end of the bolt is located in the cavity 130.

[0097] In one embodiment, the distance between the front end of the bolt and the front side of the back plate 100 is not less than 1 mm.

[0098] In one embodiment, the distance between the front end of the bolt and the front side of the back plate 100 is 0-1 mm.

[0099] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0100] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the description of this specification, the reference to terms such as "some embodiments," "exemplarily," etc., means that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of this application. In this specification, the illustrative 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 any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0101] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled 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 description of this application should fall within the scope of this patent application.

Claims

1. A display device, characterized in that, include: The back panel has fixing holes on its back side; The rear shell covers the back of the back plate; an accommodating space is formed between the front side of the rear shell and the rear side of the back plate. A PCB board is housed within the accommodating space; the PCB board has through holes extending from front to back. A grounding plate is fixed to the side of the PCB board facing away from the backplate; the grounding plate is used to connect a grounding wire; the grounding plate includes a first grounding layer and a second grounding layer that are attached to each other, and a connecting part is provided between the first grounding layer and the second grounding layer; a through hole is provided on the grounding plate, the through hole and the through hole are connected, and the through hole penetrates the first grounding layer and the second grounding layer; a bolt is provided through the fixing hole, the through hole and the through hole, and is threaded into the fixing hole; the side of the bolt facing the backplate is attached to the grounding plate.

2. The display device according to claim 1, characterized in that, A limiting hole is provided on the side of the PCB board facing away from the back plate; The grounding plate has protruding pins that engage within the limiting hole.

3. The display device according to claim 2, characterized in that, The limiting hole is provided in one or more ways, and the number of the pins corresponds one-to-one with the limiting hole.

4. The display device according to claim 2, characterized in that, The pin is a structure formed integrally by bending it onto the grounding plate.

5. The display device according to claim 1, characterized in that, The grounding plate is a structure made of metal material; The grounding plate includes pins integrally bent on the grounding plate, and the pins are used to fix the grounding plate on the PCB board; The connection portion is formed by bending the first grounding layer relative to the second grounding layer; At least one pin and the connection portion are located on both sides of the through hole in the radial direction along the through hole.

6. The display device according to claim 1, characterized in that, The grounding plate is a structure made of metal material; the grounding plate includes pins integrally bent and formed on the grounding plate, the pins being used to fix the grounding plate on the PCB board; The pin is located at the edge of the second ground layer; The first grounding layer is located on the side of the second grounding layer that is away from the PCB board.

7. The display device according to claim 6, characterized in that, The back plate has a protruding bulge, and the fixing hole is formed on the bulge; A cavity is formed between the front side of the convex bulge and the back plate, and the front end of the bolt is located in the cavity, without extending beyond the front side of the back plate.

8. The display device according to claim 6, characterized in that, The distance between the front end of the bolt and the front side of the back plate is not less than 1 mm.

9. The display device according to claim 1, characterized in that, The perforation is located at the edge or corner of the PCB board, and the grounding plate is located at the edge or corner of the PCB board.

10. The display device according to claim 1, characterized in that, The fixing hole, through hole and through hole are provided in multiple ways.

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