CN218728478U - Display device - Google Patents

Abstract

The application discloses display device relates to display equipment technical field for solve the lower problem of assembly efficiency that current display device leads to because of circuit board ground connection. The display device comprises a display panel, a back plate, a lamp panel, a first grounding piece and a second grounding piece. The display panel has a display surface and a back surface disposed opposite to the display surface. The back plate is positioned on one side where the back surface of the display panel is positioned, and the back plate and the display panel form an installation cavity in a surrounding mode. The lamp plate sets up in the installation intracavity, includes the circuit board and sets up a plurality of light sources on the circuit board. One end of the first grounding piece is connected with the circuit board and electrically connected, the second grounding piece is connected with the back plate and electrically connected, and the second grounding piece is clamped with one end of the first grounding piece, which is far away from the circuit board. The display device is used for displaying pictures.

Description

Display device

Technical Field

The application relates to the technical field of display equipment, in particular to a display device.

Background

The lcd generally includes a display panel and a backlight module. The backlight module can be used for providing a light source for the display panel, so that the display panel can display pictures. The backlight module can be divided into a direct type backlight module and a side type backlight module according to the different arrangement positions of the light sources.

The direct type backlight module generally includes a back plate and a lamp panel. The lamp plate includes circuit board and the light source of setting on the circuit board. Generally, in order to prevent static electricity from interfering with the circuit board, the circuit board is generally connected to the back plate by screws to form a loop to achieve grounding of the circuit board.

However, the assembly process of screw connection is complicated, and the display device has low assembly efficiency due to the fact that the circuit board is grounded through the screws, which affects the production efficiency of the display device.

SUMMERY OF THE UTILITY MODEL

The application provides a display device for solve the lower problem of assembly efficiency that current display device leads to because of circuit board ground connection.

In order to achieve the purpose, the technical scheme is as follows:

the embodiment of the application provides a display device, including display panel, backplate, lamp plate, first ground connection spare and second ground connection spare. The display panel has a display surface and a back surface disposed opposite to the display surface. The back plate is positioned on one side where the back surface of the display panel is positioned, and the back plate and the display panel form an installation cavity in a surrounding mode. The lamp plate sets up in the installation intracavity, includes the circuit board and sets up a plurality of light sources on the circuit board. One end of the first grounding piece is connected with the circuit board and electrically connected, the second grounding piece is connected with the back plate and electrically connected, and the second grounding piece is clamped with one end of the first grounding piece, which is far away from the circuit board.

According to the display device provided by the embodiment of the application, the first grounding piece is electrically connected with the circuit board, the second grounding piece is electrically connected with the back plate, and the second grounding piece is clamped with the first grounding piece. Therefore, the first grounding piece and the second grounding piece can realize the electrical connection between the back plate and the circuit board and realize the grounding of the circuit board. Meanwhile, the first grounding piece and the second grounding piece are connected in a clamping mode, so that the assembling efficiency and the reliability are high, and the assembling efficiency of the display device and the reliability of the grounding of the circuit board are improved.

In some embodiments, the circuit board is provided with a first avoiding hole. A part of the first grounding piece is positioned on one side of the circuit board close to the display panel and is connected with the circuit board. The other part of the first grounding piece penetrates through the first avoidance hole and is clamped with the second grounding piece.

In some embodiments, the first ground piece includes a first connection portion and a conductive portion. The first connecting part is of a sheet structure, is positioned on one side of the circuit board close to the display panel and is attached to the surface of the circuit board. The conduction part is connected with the first connecting part, penetrates through the first avoidance hole and is clamped with the second grounding part.

In some embodiments, the back panel includes a bottom panel and side panels that wrap around the bottom panel. The surface of the bottom plate, which is close to one side of the circuit board, is provided with a mounting groove, and the circuit board is arranged on the bottom plate. The second grounding piece is positioned in the mounting groove and connected with the bottom plate.

In some embodiments, the second ground piece includes a second connecting portion and an abutment portion. The second connecting part is of a sheet structure. The second connecting portion is attached to the bottom of the mounting groove. One end of the abutting part is connected with the second connecting part, and the abutting part abuts against one end, far away from the circuit board, of the first grounding piece.

In some embodiments, the bottom of the mounting groove is provided with a second avoiding hole. The second connecting portion are provided with clamping holes, and the clamping holes and the second avoidance holes are arranged oppositely. One end of the abutting part is connected with the hole wall of the clamping hole, and the other end of the abutting part penetrates through the second avoiding hole. The one end that circuit board was kept away from to first ground connection piece wears to locate joint hole and second and dodges the hole to support with the one end that butt portion kept away from the pore wall in joint hole and lean on.

In some embodiments, the abutment comprises a first abutment. One end of the first abutting part is connected with the hole wall of the clamping hole. First butt portion slope sets up, and the distance between the one end of the pore wall in joint hole and the axis in joint hole is connected to first butt portion, is greater than the distance between the one end of the pore wall in joint hole and the axis in joint hole are kept away from to first butt portion.

In some embodiments, the abutment further comprises a second abutment. One end of the second abutting part is connected with one end, far away from the hole wall of the clamping hole, of the first abutting part. The extending direction of the second abutting part is parallel to the axis of the clamping hole.

In some embodiments, the number of the abutting portions is plural. A plurality of butt portions are arranged at intervals along the circumferential direction of the clamping hole.

In some embodiments, the display device further comprises a plurality of fixtures. The fixing piece penetrates through the second connecting portion and the groove bottom of the mounting groove. The second connecting part is connected with the bottom plate through a fixing part. The plurality of fixing pieces are arranged at intervals.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of a display device according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a lamp panel provided in an embodiment of the present application;

FIG. 3 is a partial cross-sectional view of the circuit board ground;

FIG. 4 is a partial cross-sectional view of the connection of the circuit board to the first ground member;

fig. 5 is a schematic partial structure diagram of a display device according to an embodiment of the present disclosure;

fig. 6 is a schematic overall structure diagram of a first grounding member according to an embodiment of the present disclosure;

fig. 7 is a front view of the first ground member shown in fig. 6;

FIG. 8 is a partial structural view of the base plate;

FIG. 9 is a partial cross-sectional view of the positioning posts as the base and circuit board are mounted;

fig. 10 is a schematic structural diagram of a second grounding member according to an embodiment of the present disclosure;

FIG. 11 is an enlarged view of a portion of FIG. 3 at A;

fig. 12 is a cross-sectional view of the first and second ground members when snapped together;

fig. 13 is a top view of the second ground member shown in fig. 10;

fig. 14 is a front view of the second ground member shown in fig. 10.

Reference numerals:

100-a display device; 10-a display panel; 20-a back plate; 201-installation cavity; 21-a bottom plate; 211-a mounting groove; 2111-second avoidance hole; 212-a locating post; 213-positioning the projection; 22-side plate; 30-a lamp panel; 31-a circuit board; 311-a first avoidance hole; 312-placing holes; 32-a light source; 40-a first ground; 41-a first connection; a 42-conducting portion; 50-a second ground; 51-a second connection; 511-a clamping hole; 512-connecting hole; 513-positioning holes; 52-an abutment; 521-a first abutment; 522-a second abutment; 60-a reflector plate; 601-mounting holes; 70-fixing part.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first" and "second" may be used to explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless otherwise specified.

It should be noted that in practical applications, due to the limitation of the precision of the device or the installation error, the absolute parallel or perpendicular effect is difficult to achieve. The vertical, parallel or same-direction description in the present application is not an absolute limitation, but means that the vertical or parallel structural arrangement can be realized within a preset error range, and a corresponding preset effect is achieved, so that the technical effect of limiting the features can be maximally realized, and the corresponding technical scheme is convenient to implement and has high feasibility.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

With the development of Light-Emitting Diode (LED) technology, the resolution and display effect of LEDs are greatly improved. The combination of Mini-LEDs and liquid crystal display panels to display images is becoming the mainstream application.

Because the Mini-LEDs are small in size, the Mini-LEDs are typically arranged in an array on a plate-like circuit board. Meanwhile, with the further improvement of the television brightness demand of the market, the number of Mini-LEDs arranged on the circuit board is gradually increased, so that the light mixing distance (OD value) of the display device is smaller and smaller. Thus, the demand for the driving chip of the circuit board is also gradually increasing.

Due to the limitation of the driving chip technology, a driving chip (for example, an AM driving chip) commonly used at present has a strong requirement for grounding, so as to reduce driving impedance and ensure the reliability of the driving chip.

In the related art, the circuit board is fastened to the back plate by screws to form a loop to realize grounding of the circuit board. However, the screw connection requires assembly by means of a tool, and the process is complicated and the assembly efficiency is low. Meanwhile, the screw connection reliability is low, and the effectiveness of grounding of the circuit board cannot be guaranteed.

In addition, for the display device with a small OD value, the subjective effect of the display device is affected because the end of the screw on the circuit board is exposed. For this reason, a reflective sheet is required to shield the screws during the production of the assembled display device. However, this method causes low production efficiency and has the problem that the subjective effect is affected due to the insufficient arrangement of the reflective sheet.

Based on this, the embodiment of the present application provides a display device 100. As shown in fig. 1, fig. 1 is a schematic view of an overall structure of a display device 100 according to an embodiment of the present disclosure. The display device 100 may include a display panel 10, a back panel 20, and a lamp panel 30.

The display panel 10 has a display surface and a back surface opposite to the display surface, and the back plate 20 is located on the side where the back surface of the display panel 10 is located, and encloses an installation cavity 201 with the display panel 10. Lamp panel 30 sets up in installation cavity 201.

Wherein, as shown in fig. 2, fig. 2 is a schematic structural diagram of a lamp panel 30 provided in an embodiment of the present application, and the lamp panel 30 may include a circuit board 31 and a plurality of light sources 32 disposed on the circuit board 31. The plurality of light sources 32 may be disposed on the circuit board 31 at intervals, and electrically connected to the circuit board 31. The plurality of light sources 32 are used to emit light toward the back surface of the display panel 10 (fig. 1) so that the display panel 10 (fig. 1) can display a picture.

Referring to fig. 2, the circuit board 31 may be an aluminum substrate, and may be rectangular in shape. The plurality of light sources 32 may be arranged in a rectangular array on the circuit board 31. The light source 32 may be an LED or a Mini-LED. When the light source 32 selects the Mini-LED, the number of the Mini-LEDs that can be disposed on the circuit board 31 is larger because the Mini-LED is smaller in size. In addition, as shown in fig. 2, the lamp panel 30 may further include a connection terminal 33 disposed on the circuit board 31. The light source 32 may be energized through a terminal 33.

It is understood that the display panel 10 is a liquid crystal display panel. A plurality of sub-pixels are distributed in the interior of the display panel 10, and light is irradiated to the sub-pixels, so that the sub-pixels can emit light to display an image. The sub-pixel is the smallest imaging unit of the display panel 10, and a plurality of sub-pixels emitting different light rays which are adjacent in sequence may form one pixel. For example, a red (R) sub-pixel, a green (G) sub-pixel, and a blue (B) sub-pixel, which are adjacent in this order, constitute one pixel. In this case, the ratio of the R, G, B light in different pixels can be adjusted to achieve the purpose of adjusting the display color of the pixel.

To achieve grounding of the circuit board 31, as shown in fig. 3, fig. 3 is a partial sectional view of the grounding of the circuit board 31. The display device may further include a first ground member 40 and a second ground member 50. One end of the first grounding member 40 is connected to the circuit board 31 and electrically connected thereto. The second grounding member 50 is connected to and electrically connected to the back plate 20, and the second grounding member 50 is connected to the end of the first grounding member 40 away from the circuit board 31.

Therefore, in the display device 100 provided in the embodiment of the present application, since the first grounding piece 40 is electrically connected to the circuit board 31, the second grounding piece 50 is electrically connected to the back plate 20, and the second grounding piece 50 is clamped to the first grounding piece 40. Thus, the first grounding piece 40 and the second grounding piece 50 can realize the electrical connection between the back plate 20 and the circuit board 31, and realize the grounding of the circuit board 31. Meanwhile, since the first grounding piece 40 and the second grounding piece 50 are connected in a clamping manner, the assembly efficiency and reliability are high, and the assembly efficiency of the display device 100 and the reliability of the grounding of the circuit board 31 are further improved.

It is understood that the first ground member 40, the second ground member 50, and the back plate 20 may be made of a conductive metal material. For example, the first ground member 40, the second ground member 50, and the back plate 20 may be made of a metal copper material.

In some embodiments, as shown in fig. 4, fig. 4 is a partial cross-sectional view of a connection portion of the circuit board 31 and the first grounding member 40, and the circuit board 31 may have a first avoiding hole 311. A portion of the first grounding member 40 is located on a side of the circuit board 31 close to the display panel (i.e., above the circuit board 31 in fig. 4), and is connected to the circuit board 31. The other part of the first grounding member 40 is inserted into the first avoiding hole 311, and is clamped with the second grounding member 50 (fig. 3).

As shown in fig. 4, since a portion of the first grounding member 40 passes through the first avoiding hole 311, when the connection between the portion of the first grounding member 40 above the circuit board 31 and the circuit board 31 fails, the first grounding member 40 is also limited in the first avoiding hole 311 and cannot fall off.

Of course, the first avoiding hole 311 may not be formed in the circuit board 31. At this time, the entirety of the first ground member 40 may be positioned below the circuit board 31 to be connected to the circuit board 31. For example, the first grounding member 40 may be disposed under the circuit board 31 by soldering, connected to the circuit board 31 and electrically connected thereto.

As shown in fig. 5, fig. 5 is a schematic partial structure diagram of the display device according to the embodiment of the present application, in order to improve the utilization efficiency of the light source 32, the display device may further include a reflective sheet 60, and the reflective sheet 60 is mounted on one side of the circuit board 31 close to the display panel (i.e., above the circuit board 31 in fig. 5). The reflection sheet 60 is provided with a mounting hole 601, and the light source 32 is positioned in the mounting hole 601.

Therefore, by arranging the reflector 60, the light reflected back to the circuit board 31 can be reflected by the reflector 60 and emitted towards the back of the display panel 10 again, and the utilization efficiency of the light is further ensured. Wherein, the reflective sheet 60 can be adhered to the surface of the circuit board 31 by a double-sided adhesive tape.

In order to ensure that the first grounding member 40 is in good contact with the circuit board 31, as shown in fig. 6, fig. 6 is a schematic view of an overall structure of the first grounding member 40 according to an embodiment of the present disclosure, the first grounding member 40 may include a first connection portion 41 and a conduction portion 42, and the first connection portion 41 is a sheet structure. As shown in fig. 4, the first connecting portion 41 is located on a side of the circuit board 31 close to the display panel (i.e., above the circuit board 31 in fig. 4), and is attached to a surface of the circuit board 31. The conductive portion 42 is connected to the first connecting portion 41, passes through the first avoiding hole 311, and is connected to the second grounding member 50 (fig. 3).

Thus, the first connection portion 41 and the circuit board 31 are in surface contact with each other, and the contact therebetween is good. Static electricity generated by the circuit board 31 can smoothly pass through the first connecting portion 41 and the conducting portion 42 and be transferred to the second grounding member 50, so that the static electricity generated by the circuit board 31 is prevented from influencing the use of the circuit board 31. Meanwhile, since the first connecting portion 41 has a sheet-like structure and is thinner, the reflector 60 can be better attached to the surface of the circuit board 31, and the reflector 60 can be conveniently mounted and disposed.

The first connecting portion 41 may be fixed to the circuit board 31 by means of a patch. For example, the first connection portion 41 may be soldered on the circuit board 31 by Surface Mount Technology (SMT) front Surface mounting.

It is understood that the first connection portion 41 may have various shapes. For example, as shown in fig. 6, the first connection portion 41 may have a circular sheet-like structure. At this time, referring to fig. 7, fig. 7 is a front view of the first ground member 40 shown in fig. 6, the diameter d of the first connection portion 41 ₁ May be 7mm, the thickness h of the first connection portion 41 ₁ May be 0.4mm. Of course, the first connection portion 41 may also be square or have other shapes, and the thickness of the first connection portion 41 may also be selected according to actual situations, and is not further limited herein.

With continued reference to fig. 6, the conductive portion 42 may be cylindrical. Correspondingly, the first avoiding hole 311 (fig. 4) is also a circular hole, so that the conducting portion 42 can pass through the hole smoothly. It can be appreciated that the conductive portion 42 is cylindrical, and thus has a simpler shape and is more convenient to manufacture.

The aperture size of the first avoiding hole 311 may be set according to actual conditions. For example, the aperture of the first avoiding hole 311 may be 4mm. Correspondingly, as shown in FIG. 7, the diameter d of the cylindrical conductive portion 42 ₂ Less than 4mm is required. The length of the conducting portion 42 can also be set according to actual requirements. Exemplary, referring to FIG. 7Length l of guide 42 ₁ May be 4.5mm.

As shown in fig. 1, the back plate 20 may include a bottom plate 21 and a side plate 22 disposed around the bottom plate 21, and the circuit board 31 is disposed on the bottom plate 21. Wherein the circuit board 31 can be arranged on the bottom plate 21 by means of bonding. Illustratively, the circuit board 31 may be adhered to the base 21 by double-sided adhesive and silane modified polyether adhesive (MS adhesive).

As shown in fig. 5, the surface of the bottom plate 21 on the side close to the circuit board 31 has a mounting groove 211. As shown in fig. 8, fig. 8 is a partial structural schematic view of the bottom plate 21, and the second grounding piece 50 is located in the mounting groove 211 and connected to the bottom plate 21.

Because be provided with mounting groove 211 on bottom plate 21, mounting groove 211 can form accommodation space, and second ground connection piece 50 sets up in mounting groove 211, and setting up of second ground connection piece 50 is more convenient, avoids influencing circuit board 31's fixed because of setting up second ground connection piece 50.

In order to determine the placement position of the circuit board 31, as shown in fig. 8, the surface of the bottom plate 21 near the circuit board is further provided with a positioning post 212, and correspondingly, as shown in fig. 9, fig. 9 is a partial cross-sectional view of the positioning post 212 when the bottom plate 21 and the circuit board 31 are mounted, the circuit board 31 is provided with a placement hole 312, and the positioning post 212 is located in the placement hole 312.

Therefore, when the circuit board 31 is disposed, the positioning column 212 is first inserted into the placing hole 312 to determine the placing position, and then the circuit board 31 is bonded to the bottom plate 21 by using double-faced adhesive and MS adhesive.

In some embodiments, as shown in fig. 10, fig. 10 is a schematic structural diagram of a second grounding piece 50 provided in the embodiments of the present application, and the second grounding piece 50 may include a second connecting portion 51 and an abutting portion 52. The second connection portion 51 has a sheet-like structure.

As shown in fig. 11, fig. 11 is a partially enlarged view of a portion a in fig. 3, and the second connection portion 51 is attached to the groove bottom of the mounting groove 211. One end of the abutting portion 52 is connected to the second connecting portion 51, and the abutting portion 52 abuts against one end of the first ground member 40 away from the circuit board 31.

In this way, since the abutting portion 52 abuts against one end of the first grounding member 40 away from the circuit board 31, static electricity of the circuit board 31 can be transmitted to the abutting portion 52 through the first grounding member 40, and finally transmitted to the bottom plate 21 through the second connecting portion 51. Meanwhile, the second connecting portion 51 is of a sheet structure, is attached to the bottom of the mounting groove 211 and is in surface contact with the mounting groove, so that the second grounding piece 50 is in large contact area with the bottom plate 21, and the second grounding piece is in good contact with the bottom plate.

In some embodiments, as shown in fig. 11, the bottom of the mounting groove 211 may be provided with a second avoiding hole 2111, the second connecting portion 51 may be provided with a clamping hole 511, and the clamping hole 511 is disposed opposite to the second avoiding hole 2111. One end of the abutting portion 52 is connected to the hole wall of the engaging hole 511, and the other end thereof penetrates the second avoiding hole 2111. One end of the first grounding member 40, which is far from the circuit board 31, penetrates through the clamping hole 511 and the second avoiding hole 2111, and abuts against one end of the abutting portion 52, which is far from the hole wall of the clamping hole 511.

Like this, through setting up joint hole 511 and second and dodging hole 2111 for in joint hole 511 and the second dodge hole 2111 were worn to locate by the one end that first ground connection piece 40 kept away from circuit board 31, made things convenient for stretching out of first ground connection piece 40, and then made circuit board 31 and bottom plate 21 can be close to each other, in order to conveniently set up circuit board 31 on bottom plate 21.

Meanwhile, one end of the abutting portion 52 may be disposed at the hole wall of the clamping hole 511, and the other end penetrates through the second avoiding hole 2111. In this way, when the first grounding member 40 is inserted into the second avoidance hole 2111, the first grounding member 40 may also abut against the abutting portion 52, and thus, the first grounding member 40 is in abutting contact with the abutting portion 52, and is clamped to the second grounding member 50.

It can be understood that the abutting portion 52 has a certain elasticity, and can be deformed under the abutting action of the first grounding piece 40, so that the first grounding piece 40 can be clamped with the second grounding piece 50 under the abutting action of the abutting portion 52.

Of course, in another embodiment, the second connecting portion 51 may not be provided with the clamping hole 511. At this time, one end of the abutting portion 52 is connected to the second connecting portion 51, the other end extends in a direction approaching the circuit board 31, and the abutting portion 52 also abuts against the first ground contact 40. At this time, the first ground member 40 and the second ground member 50 can also maintain good contact.

Based on the solution shown in fig. 11, in order to enable the abutment portion 52 to abut against the first ground member 40. As shown in fig. 12, fig. 12 is a cross-sectional view of the first ground piece 40 and the second ground piece 50 when they are snapped together, and in some embodiments, the abutting portion 52 may include a first abutting portion 521. One end of the first abutting portion 521 is connected to the hole wall of the engaging hole 511.

The first abutting portion 521 is obliquely arranged, and a distance between one end of the first abutting portion 521, which is connected with the hole wall of the clamping hole 511, and the axis of the clamping hole 511 is greater than a distance between one end of the first abutting portion 521, which is far away from the hole wall of the clamping hole 511, and the axis of the clamping hole 511.

Thus, as shown in fig. 12, after the first grounding piece 40 gradually passes through the clamping hole 511, the distance between the first grounding piece 40 and the first abutting portion 521 becomes closer and closer until the first grounding piece 40 abuts against the first abutting portion 521.

It is understood that the distance between the edge of the end of the first grounding member 40 away from the circuit board 31 and the axis of the clamping hole 511 may be greater than the distance between the end of the first abutting portion 521 away from the hole wall of the clamping hole 511 and the axis of the clamping hole 511. Thus, when the first grounding member 40 abuts against the first abutting portion 521, the first abutting portion 521 deforms to a certain extent, so that the first abutting portion 521 and the first grounding member 40 are kept abutting against each other.

With continued reference to fig. 12, in some embodiments, the abutment 52 may further include a second abutment 522. One end of the second abutting portion 522 is connected to one end of the first abutting portion 521, which is far from the clamping hole 511. The extending direction of the second abutting portion 522 is parallel to the axis of the click hole 511, that is, the second abutting portion 522 extends downward as viewed in fig. 12.

Thus, when the first grounding member 40 extends into the clamping hole 511, the first grounding member 40 abuts against the whole second abutting portion 522. Since the second abutting portion 522 extends downward, the contact area with the first ground member 40 is increased, thereby ensuring good contact between the first ground member 40 and the second ground member 50.

As shown in fig. 10, in some embodiments, the number of the abutting portions 52 may be plural. The plurality of abutting portions 52 are provided at intervals in the circumferential direction of the catching hole 511. Thus, as shown in fig. 12, the plurality of abutting portions 52 abut against the first ground contact 40, respectively. Thereby enabling the first ground member 40 to be snapped between the plurality of abutment portions 52 and thereby ensuring the effectiveness of the connection between the first ground member 40 and the second ground member 50.

To facilitate the first grounding member 40 to project into the catching hole 511, it abuts against the abutting portion 52. As shown in fig. 12, in some embodiments, an end of the first ground member 40 away from the circuit board (i.e., a lower end of the first ground member 40 in fig. 12) may be rounded.

As shown in fig. 12, the plurality of abutments 52 can form a structure similar to a flip-through hole. The interference amount between the end of the first abutting portion 521 away from the snap hole 511 and the first ground member 40 may be 0.15mm.

For example, as shown in fig. 13, fig. 13 is a top view of the second grounding member 50 shown in fig. 10, the clamping hole 511 is circular, and a diameter d of a circle formed by an end of the first abutting portions 521 far away from the clamping hole 511 ₃ May be 3.2mm. Correspondingly, as shown in FIG. 7, the diameter d of the conductive portion 42 ₂ May be 3.5mm. Thus, referring to fig. 12, when the conduction portion 42 extends into the engagement hole 511, the interference amount between the conduction portion 42 and the end of the first contact portion 521 away from the engagement hole 511 is X ₁ May be 0.15mm. It is understood that the numerical values of the interference amounts are only exemplary and can be set according to actual conditions.

In order to allow the second connection portion 51 to be attached to the groove bottom of the mounting groove 211. As shown in fig. 3, in some embodiments, the display device may further include a plurality of fixing pieces 70, and the fixing pieces 70 penetrate through the second connection part 51 (fig. 11) and the groove bottom of the mounting groove 211 (fig. 11). The second connecting portion 51 (fig. 11) and the bottom plate 21 are connected by a fixing member 70. Wherein the plurality of fixing members 70 are provided at intervals.

In this way, the fixing member 70 can make the second connecting portion 51 fit to the groove bottom of the mounting groove 211, thereby ensuring the reliability of the connection between the second connecting portion 51 and the bottom plate 21. Of course, the second connection portion 51 may be adhered to the bottom of the mounting groove 211. It is understood that the number of the fixing members 70 may be set according to actual conditions, and as shown in fig. 3, the number of the fixing members 70 may be two.

In order to facilitate the connection of the fixing member 70, as shown in fig. 10, the second connecting portion 51 may be provided with a connecting hole 512, so that the fixing member 70 (fig. 3) can better penetrate through the second connecting portion 51. Correspondingly, a through hole (not shown) may be formed at the bottom of the mounting groove 211 (fig. 11).

It is understood that the second connecting portion 51 and the base plate 21 may be connected by different fixing members 70. For example, the fixing member 70 may be a screw with a specification M2.5 × 1.8, and the second connection portion 51 and the bottom plate 21 are connected by the screw thread. The fixing member 70 may also be a snap-fit member, and the second connecting portion 51 and the bottom plate 21 are snapped by the snap-fit member.

In order to facilitate determination of the installation position of the second connection part 51, as shown in fig. 8, the groove bottom of the installation groove 211 may have a positioning protrusion 213. Correspondingly, as shown in fig. 10, the second connecting portion 51 is provided with a positioning hole 513. The positioning protrusion 213 is disposed in the positioning hole 513.

In this way, when the second connection portion 51 is attached to the bottom of the mounting groove 211, the positioning protrusion 213 is inserted into the positioning hole 513, and then the fixing member 70 is used to attach the second connection portion 51 to the bottom of the mounting groove 211.

For example, as shown in fig. 13, when the second connecting portion 51 is provided with a fastening hole 511, two sides of the fastening hole 511 are respectively provided with a connecting hole 512 and a positioning hole 513. The positioning hole 513 may be located between the connection hole 512 and the catching hole 511.

The distance between the two positioning holes 513 and the distance between the two connecting holes 512 can be set according to actual conditions. Illustratively, as shown in FIG. 13, the distance l between the centers of two positioning holes 513 ₂ May be 13mm, the distance l between the centers of the two connection holes 512 ₃ And may be 23mm.

As shown in fig. 13, the second connection portion 51 may be a substantially rectangular elongated shape having a width w ₁ May be 5mm. Further, as shown in fig. 14, fig. 14 is a drawing10, a front view of the second ground member 50, a thickness h of the second connection portion 51 ₂ May be 0.4mm. The second grounding member 50 may be manufactured by a stamping process.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A display device, comprising:

a display panel having a display surface and a back surface disposed opposite the display surface;

the back plate is positioned on one side of the back surface of the display panel and forms an installation cavity with the display panel in an enclosing mode;

the lamp panel is arranged in the installation cavity and comprises a circuit board and a plurality of light sources arranged on the circuit board;

one end of the first grounding piece is connected with the circuit board and is electrically connected with the circuit board; and the number of the first and second groups,

the second grounding piece is connected with the back plate and electrically connected with the back plate, and the second grounding piece is connected with one end, far away from the circuit board, of the first grounding piece in a clamping mode.

2. The display device according to claim 1, wherein the circuit board has a first avoiding hole; a part of the first grounding piece is positioned on one side of the circuit board close to the display panel and is connected with the circuit board; the other part of the first grounding piece penetrates through the first avoidance hole and is clamped with the second grounding piece.

3. The display device according to claim 2, wherein the first ground member comprises:

the first connecting part is of a sheet structure; the first connecting part is positioned on one side of the circuit board close to the display panel and is attached to the surface of the circuit board; and (c) a second step of,

the conducting part is connected with the first connecting part, penetrates through the first avoiding hole and is connected with the second grounding part in a clamping mode.

4. The display device according to any one of claims 1 to 3, wherein the back plate includes a bottom plate and side plates disposed around the bottom plate; the surface of the bottom plate, which is close to one side of the circuit board, is provided with a mounting groove; the circuit board is arranged on the bottom plate; the second grounding piece is positioned in the mounting groove and connected with the bottom plate.

5. The display device according to claim 4, wherein the second ground member comprises:

the second connecting part is of a sheet structure; the second connecting part is attached to the bottom of the mounting groove; and the number of the first and second groups,

and one end of the abutting part is connected with the second connecting part, and the abutting part abuts against one end, far away from the circuit board, of the first grounding piece.

6. The display device according to claim 5, wherein a second avoidance hole is formed at the bottom of the mounting groove;

the second connecting part is provided with a clamping hole, and the clamping hole and the second avoidance hole are oppositely arranged; one end of the abutting part is connected with the hole wall of the clamping hole, and the other end of the abutting part penetrates through the second avoiding hole;

the first ground connection piece is kept away from the one end of circuit board is worn to locate the joint hole and the hole is dodged to the second, and with butt portion keeps away from the one end of the pore wall in joint hole supports and leans on.

7. The display device according to claim 6, wherein the abutting portion comprises:

one end of the first abutting part is connected with the hole wall of the clamping hole; the first abutting part is obliquely arranged; the first abutting portion is connected with the distance between one end of the hole wall of the clamping hole and the axis of the clamping hole and is larger than the distance between one end of the hole wall of the clamping hole and the axis of the clamping hole, which is far away from the first abutting portion.

8. The display device according to claim 7, wherein the abutting portion further comprises:

one end of the second abutting part is connected with one end of the first abutting part, which is far away from the hole wall of the clamping hole; the extending direction of the second abutting part is parallel to the axis of the clamping hole.

9. The display device according to claim 6, wherein the abutting portion is plural in number; the abutting parts are arranged along the circumferential direction of the clamping hole at intervals.

10. The display device according to claim 5, further comprising:

the fixing pieces penetrate through the second connecting part and the groove bottom of the mounting groove; the second connecting part is connected with the bottom plate through the fixing part; the plurality of fixing pieces are arranged at intervals.

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