CN217386064U - Backlight module and display device - Google Patents

Abstract

The application belongs to the technical field of display, and particularly relates to a backlight module and a display device. This application aims at solving the operation space of current lamp strip line and lamp strip narrow and small, the inconvenient technical problem of operation. The backlight module comprises a switching circuit board and at least two groups of light bar assemblies, wherein each light bar assembly comprises a plurality of light bars; the switching circuit board is positioned between the two groups of light bar assemblies, a plurality of connecting seats are arranged on the switching circuit board, one ends of the light bars close to the switching circuit board are provided with connecting heads, and the connecting heads are inserted into the connecting seats along the direction perpendicular to the switching circuit board so that the light bars are electrically connected with the switching circuit board, and the switching circuit board is not limited by the space of the back plate, so that the assembly is convenient, the assembly efficiency is improved, and the automatic assembly is realized; lamp lines and high-temperature adhesive tapes are not needed, so that the working procedure and the cost are saved; the switching circuit board is located between the tip of two lamp strips, can also play the effect of location, saves positioning jig in the installation, further improves the packaging efficiency.

Description

Backlight module and display device

Technical Field

The application relates to the technical field of display, in particular to a backlight module and a display device.

Background

With the progress of science and technology, the information is more and more convenient to spread. Among them, various display devices have come into play. For example, the intelligent interactive tablet takes the touch display screen as a display and operation platform, has multiple functions of writing, annotating, drawing, network conference and the like, integrates multiple technologies of human-computer interaction, tablet display, network transmission and the like, and enables users to obtain convenient human-computer interactive experience. For the interactive flat panel of the liquid crystal display, the interactive flat panel comprises a liquid crystal panel and a backlight module, the liquid crystal panel does not emit light, and images are displayed by means of a light source of the backlight module.

In the related art, the backlight module includes a back plate and a plurality of light bars, the light bars are fixed on the back plate, the light bars are connected with each other through light bar lines, and the light bar lines are laterally connected with the end portions of the light bars. But the tip of lamp strip is less than 1cm apart from the lateral wall distance of backplate, and the operation space that leads to lamp strip line and lamp strip is narrow and small, and the operation is inconvenient, influences production efficiency.

SUMMERY OF THE UTILITY MODEL

The application provides a backlight unit and display device to solve current lamp line along the end connection of side direction and lamp strip, the operation space of lamp strip line and lamp strip is narrow and small, the technical problem of awkward.

In order to solve the technical problem, the following technical scheme is adopted in the application:

a first aspect of the present application provides a backlight module, comprising: the lamp strip assembly comprises a switching circuit board and at least two groups of lamp strip assemblies; the lamp strip assemblies are arranged at intervals along a first preset direction and comprise a plurality of lamp strips extending along the first preset direction, the lamp strips are arranged at intervals along a second preset direction, and an included angle between the second preset direction and the first preset direction is larger than zero; the switching circuit board is positioned between the two groups of the light bar assemblies, extends along the second preset direction, is provided with a plurality of connecting seats, and is arranged corresponding to the light bars; the lamp strip is close to one end of the switching circuit board is provided with a connector, and the connector is inserted into the connecting seat along the direction perpendicular to the switching circuit board so that the lamp strip is electrically connected with the switching circuit board.

Compared with the prior art, the backlight module that first aspect of this application provided has following advantage:

the backlight module comprises a switching circuit board and at least two groups of light bar assemblies, wherein the at least two groups of light bar assemblies are arranged at intervals along a first preset direction, each light bar assembly comprises a plurality of light bars extending along the first preset direction, the plurality of light bars are arranged at intervals along a second preset direction, and an included angle between the second preset direction and the first preset direction is larger than zero; the switching circuit board is positioned between the two groups of light bar assemblies, extends along a second preset direction, is provided with a plurality of connecting seats, and is arranged corresponding to the light bars; the lamp strip is provided with a connecting head at one end close to the switching circuit board, and the connecting head is inserted into the connecting seat along the direction vertical to the switching circuit board so as to enable the lamp strip to be electrically connected with the switching circuit board, so that the lamp strip is not limited by the space of the back plate, the assembly is convenient, the assembly efficiency is improved, and the automatic assembly is realized; lamp lines and high-temperature adhesive tapes are not needed, so that the working procedure and the cost are saved; the switching circuit board is located between the tip of two lamp strips, can also play the effect of location, saves positioning jig in the installation, further improves the packaging efficiency.

As an improvement of the backlight module, the connecting seat includes a seat body and a conductive elastic sheet, the seat body is fixed on the adapting circuit board, the seat body is provided with an accommodating groove, and the conductive elastic sheet is located in the accommodating groove; the connector comprises a body part and a conductive insertion sheet arranged on the body part, the body part is fixed on the lamp strip, the body part is inserted into the base body along a direction perpendicular to the switching circuit board, and the conductive insertion sheet is abutted to the conductive elastic sheet.

As an improvement of the backlight module, the accommodating groove includes two first side walls disposed opposite to each other, the two first side walls are respectively provided with the conductive elastic pieces, and an insertion gap is formed between the conductive elastic pieces on the two first side walls; the conductive insertion sheet is inserted in the insertion gap.

As an improvement of the above-mentioned backlight unit of this application, electrically conductive shell fragment includes curved elasticity butt portion and sets up the linking arm at elasticity butt portion both ends, at least part the linking arm embedding is in the first side wall, elasticity butt portion protrusion in first side wall sets up, elasticity butt portion with electrically conductive inserted sheet butt.

As an improvement of the backlight module, the main body is provided with an insertion slot, and the conductive insertion sheet is arranged in the insertion slot; the seat body is positioned in the slot.

As an improvement of the above-mentioned backlight unit of this application, the slot includes two second lateral walls that set up relatively, two second lateral walls be provided with the breach respectively with set up in the intraoral tight arm of clamp of breach, one section of tight arm of clamp connect in the lateral wall of breach, the other end orientation of tight arm of clamp the slot external tilt extends and forms the rake, just the middle section of tight arm of clamp to the slot internal tilt, so that press from both sides tight arm with the pedestal butt.

As an improvement of the above backlight module, the connector includes a housing portion and a conductive abutting portion, the housing portion forms a fitting space, and the conductive abutting portion is disposed on an inner wall surface of the housing portion; the connecting seat comprises a base and a conductive elastic sheet arranged on the side surface of the base, the base is inserted into the matching space along the direction perpendicular to the switching circuit board, and the conductive elastic sheet is abutted to the conductive abutting part.

As an improvement of the backlight module, the backlight module further comprises a back plate, and the light bar and the switching circuit board are fixed in front of the back plate.

As an improvement of the above-mentioned backlight unit of this application, backlight unit includes power strip and connecting wire, the power strip is fixed the back of backplate, be provided with the via hole on the backplate, the one end of connecting wire with the power strip electricity is connected, the other end of connecting wire passes the via hole with the adapter circuit board electricity is connected.

A second aspect of the present application provides a display device comprising a liquid crystal display panel and the backlight module of the first aspect, wherein the liquid crystal display panel is mounted in front of the backlight module.

The display device provided by the second aspect of the present application also has the same advantages as the backlight module described in the first aspect, because the display device includes the backlight module described in the first aspect.

In addition to the technical problems solved by the present application, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems that can be solved by the backlight module and the display device provided by the present application, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description of the present invention.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present application or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only a part of the embodiments of the present application, and the drawings and the description are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for a person skilled in the art by referring to a specific embodiment, and other drawings can be obtained from the drawings without inventive efforts for the person skilled in the art.

Fig. 1 is a front view of a backlight module according to an embodiment of the present disclosure;

fig. 2 is a schematic view illustrating the light bar and the adapting circuit board provided in the embodiment of the present application;

fig. 3 is a cross-sectional view of the light bar and the adapting circuit board according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a connection seat according to an embodiment of the present application;

fig. 5 is a cross-sectional view of a connection seat according to an embodiment of the present application;

fig. 6 is a schematic structural view of a light bar connector portion according to an embodiment of the present application;

fig. 7 is a schematic view illustrating a connection seat and a connection head according to another embodiment of the present application;

fig. 8 is a bottom view of a backlight module according to an embodiment of the present disclosure;

fig. 9 is a rear view of a backlight module according to an embodiment of the present application;

fig. 10a to 10c are assembly flow charts of the backlight module according to the embodiment of the present application.

Description of reference numerals:

100: switching the circuit board; 110: a connecting seat; 111: a base body; 1111: accommodating grooves; 1112: a first side wall; 1113: a base plate; 1114: a connecting portion; 112: a conductive spring plate; 1121: an elastic abutting portion; 1122: a connecting arm; 113: a splicing gap; 114: a base; 115: an elastic conductive sheet;

200: a light bar; 210: a connector; 211: a body portion; 2111: a slot; 2112: a second side wall; 2113: an opening; 2114: a clamp arm; 2115: an inclined portion; 212: a conductive insert; 213: a housing portion; 2131: a fitting space; 214: a conductive abutment;

300: a back plate; 310: a via hole;

400: a power panel; 500: a connecting wire; 600: and (5) positioning a jig.

Detailed Description

In the related art, the backlight module includes a back plate and a plurality of light bars, the light bars are fixed on the back plate, the light bars are connected with each other through light bar lines, and the light bar lines are laterally connected with the end portions of the light bars. But the tip of lamp strip is less than 1cm apart from the lateral wall distance of backplate, and it is narrow and small to lead to the operation space of lamp strip line and lamp strip, and the operation is inconvenient, influences production efficiency.

In view of this, an embodiment of the present application provides a backlight module, in which a connector is disposed at an end of a light bar, a switching circuit board is disposed between two light bars, and a connecting seat is disposed on the switching circuit board, the connector is inserted into the connecting seat along a direction perpendicular to the switching circuit board to electrically connect the light bars and the switching circuit board, so that each light bar is powered by the switching circuit board, and a backlight source is provided for a display device. In the process, the lamp strip is vertically inserted into the switching circuit board, so that the operation is simple and rapid, the efficiency is high, and the automatic assembly is favorably realized; lamp lines and high-temperature adhesive tapes are not needed, so that the working procedure and the cost are saved; the switching circuit board is located between the tip of two lamp strips, can also play the effect of location, saves positioning jig in the installation, further improves the packaging efficiency.

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

The embodiment of the application provides a display device, which comprises a liquid crystal display panel and a backlight module, wherein the liquid crystal display panel is arranged in front of the backlight module. The backlight module provides backlight for the liquid crystal display panel. The display device of the embodiment of the application can be a liquid crystal television, a liquid crystal interactive flat panel and other liquid crystal display equipment.

The display device of the embodiment of the application further comprises a main control board, wherein the main control board is respectively electrically connected with the driving board and the backlight module of the liquid crystal display panel to control the picture display of the liquid crystal display panel.

It should be noted that, in the embodiments of the present application, the "front" is a side facing the display surface, and the "back" is a side facing away from the display surface.

Fig. 1 is a front view of a backlight module provided in an embodiment of the present application, and fig. 2 is a schematic diagram of a light bar and a transfer circuit board provided in the embodiment of the present application.

With reference to fig. 1 and fig. 2, a backlight module provided in an embodiment of the present application includes: the light bar assembly comprises a switching circuit board 100 and at least two groups of light bar assemblies. The adapting circuit board 100 is an intermediate circuit board for transmitting power signals and control signals of the light bar assembly. At least two sets of light bar assemblies are spaced apart along a first predetermined direction (corresponding to the X-axis in the figure), and two sets of light bar assemblies are shown in fig. 1, but this is not a limitation on the number of light bar assemblies. For example, four light bar assemblies are arranged at intervals along the first preset direction.

The lamp strip assembly comprises a plurality of lamp strips 200 extending along a first preset direction (corresponding to an X axis), the plurality of lamp strips 200 are arranged at intervals along a second preset direction (corresponding to a Y axis), and illustratively, the lamp strip assembly is provided with six lamp strips 200, and the six lamp strips 200 are arranged at intervals along the second preset direction (corresponding to a Y axis). The light bars 200 in each light bar assembly can be correspondingly arranged, for example, each light bar assembly includes six light bars 200, and the positions of the light bars 200 in the second preset direction (corresponding to the Y axis) are in one-to-one correspondence. Of course, the light bars 200 in each light bar assembly are staggered in the second predetermined direction (corresponding to the Y axis).

In fig. 1, the first predetermined direction (corresponding to the X axis) and the second predetermined direction (corresponding to the Y axis) are perpendicular, that is, the included angle between the first predetermined direction (corresponding to the X axis) and the second predetermined direction (corresponding to the Y axis) is 90 °. Of course, this is not restrictive, and the angle between the second predetermined direction and the first predetermined direction is greater than zero, for example, 45 degrees, 60 degrees, etc. The light emitting surface is formed on the back plate of the backlight module to provide backlight for the liquid crystal display panel.

In the embodiment of the present application, the adapting circuit board 100 is located between two sets of light bar assemblies, and thus the configuration can simultaneously supply power and transmit signals for the light bars 200 of the two light bar assemblies, which is beneficial to simplifying the structure and facilitating the assembly.

The adapting circuit board 100 extends along a second predetermined direction (corresponding to the Y-axis) to provide power and transmit signals to all the light bars 200 in the light bar assembly.

Specifically, the adapter circuit board 100 is provided with a plurality of connecting sockets 110, the connecting sockets 110 are arranged corresponding to the light bars 200, and the number of the connecting sockets 110 is the same as that of the light bars 200. The two light bar assemblies at two sides of the adapting circuit board 100 comprise N light bars 200, and the adapting circuit board 100 is provided with N connecting seats 110; the light bar assembly on the left side of the adapting circuit board 100 includes P light bars 200, and P connecting sockets 110 are arranged on the left side of the adapting circuit board 100 at intervals along a second preset direction (corresponding to the Y axis); the light bar assembly on the right side of the adapting circuit board 100 includes Q light bars 200, and Q connection sockets 110 are arranged on the right side of the adapting circuit board 100 at intervals along a second preset direction (corresponding to the Y axis). With this configuration, the adapting circuit board 100 can simultaneously supply power to all the light bars 200 of the light bar assemblies on both sides thereof. Wherein N, P and Q are both integers greater than zero.

One end of the light bar 200 close to the adapting circuit board 100 is provided with a connector 210, in fig. 1, the right end of the light bar 200 on the left side of the adapting circuit board 100 is provided with the connector 210, and the left end of the light bar 200 on the right side of the adapting circuit board 100 is provided with the connector 210. The connectors 210 are inserted into the connecting sockets 110 along a direction perpendicular to the adapting circuit board 100 (corresponding to the Z axis in the figure), so that the light bar 200 is electrically connected to the adapting circuit board 100. With the arrangement, the assembly of the light bar 200 and the switching circuit board 100 is not limited by the space of the back plate, the installation and operation are simple and rapid, the efficiency is high, and the automatic assembly is facilitated; lamp lines and high-temperature adhesive tapes are not needed, so that the working procedures and the cost are saved; the adapting circuit board 100 is located between the end portions of the two lamp strips 200, and can also play a role in positioning, so that a positioning jig is saved in the installation process, and the assembly efficiency is further improved.

Fig. 3 is a cross-sectional view of the light bar and the adapting circuit board according to an embodiment of the present disclosure; fig. 4 is a schematic structural diagram of a connection seat according to an embodiment of the present application; fig. 5 is a cross-sectional view of a connection seat according to an embodiment of the present application; fig. 6 is a schematic structural view of a light bar connector portion according to an embodiment of the present disclosure.

With reference to fig. 3, 4 and 5, in some embodiments, the connecting socket 110 includes a socket body 111 and a conductive elastic piece 112, the socket body 111 is fixed on the adaptor circuit board 100, the socket body 111 is provided with a receiving slot 1111, and the conductive elastic piece 112 is located in the receiving slot 1111. Optionally, the base 111 includes a bottom plate 1113 and a connecting portion 1114 disposed on the bottom plate 1113, and the bottom plate 1113 is fixedly connected to the adapting circuit board 100, for example, the bottom plate 1113 and the adapting circuit board 100 are an integral body. Bottom plate 1113 can be fillet rectangular plate, and connecting portion 1114 sets up on bottom plate 1113, and the cross section of connecting portion 1114 is the obround, is provided with holding tank 1111 on the connecting portion 1114, and holding tank 1111 is open-ended obround recess. The conductive elastic piece 112 is located in the receiving groove 1111, and at least a part of the structure of the conductive elastic piece 112 is embedded in the connecting portion 1114 and connected to the adapting circuit board 100 through an internal metal wire.

Referring to fig. 3 and fig. 6, the connector 210 includes a body 211 and a conductive insert 212 disposed on the body 211, the body 211 is fixed on the light bar 200, and at least a part of the conductive insert 212 is embedded in the body 211 and electrically connected to each bead of the light bar 200 through a wire. The body 211 is inserted into the base 111 along a direction perpendicular to the adapting circuit board 100 (corresponding to the Z axis in the figure), and the conductive insert 212 abuts against the conductive elastic sheet 112, so as to electrically connect the adapting circuit board 100 and the light bar 200.

The mode that this application embodiment utilized connector 210 and connecting seat 110 vertical plug to realize switching circuit board 100 and lamp strip 200 is connected electrically, and simple structure not only does not receive the backplate space restriction moreover, and convenient equipment does benefit to and improves packaging efficiency, does benefit to automatic equipment.

It can be understood that the conductive elastic sheet 112 and the conductive insertion sheet 212 in the embodiment of the present application may be a metal sheet capable of conducting electricity, such as a copper sheet, an aluminum sheet, or other sheet structures capable of conducting electricity, and the embodiment of the present application does not limit the material of the conductive elastic sheet 112 and the conductive insertion sheet 212.

In a possible implementation manner, the receiving groove 1111 includes two first sidewalls 1112 disposed opposite to each other, the two first sidewalls 1112 are disposed at an interval along the Y axis, two ends of the two first sidewalls 1112 are respectively provided with an arc-shaped sidewall, and the two first sidewalls 1112, the two arc-shaped sidewalls, and the bottom plate 1113 form the receiving groove 1111 with an open top. The two first side walls 1112 are respectively provided with a conductive elastic sheet 112, and a plugging gap 113 is formed between the conductive elastic sheets 112 on the two first side walls 1112; the conductive insert 212 is inserted into the insertion gap 113. So set up and make the both sides of electrically conductive inserted sheet 212 all can with electrically conductive shell fragment 112 butt, do benefit to the stability and the reliability of guaranteeing the electricity to connect.

Of course, this is not a limitation on the position of the conductive elastic sheet 112 in the receiving groove 1111, for example, the conductive elastic sheet 112 is only disposed on one of the first side walls 1112; for another example, the conductive elastic piece 112 is disposed on the arc-shaped sidewall of the receiving groove 1111.

Referring to fig. 4 and 5, in some embodiments, the conductive elastic sheet 112 includes an arc-shaped elastic abutting portion 1121 and connecting arms 1122 disposed at two ends of the elastic abutting portion 1121, at least a portion of the connecting arms 1122 are embedded in the first side wall 1112 to ensure the fixed connection between the conductive elastic sheet 112 and the housing 111, and the connecting arms 1122 embedded in the first side wall 1112 are electrically connected to the adapting circuit board 100. The elastic abutting portion 1121 protrudes from the first sidewall 1112, and the elastic abutting portion 1121 abuts against the conductive insertion sheet 212; the elastic abutting portion 1121 and the first side wall 1112 have elasticity, which is beneficial to ensuring the reliability and stability of the abutting with the conductive insertion piece 212.

With continued reference to fig. 3 to 6, the main body 211 is provided with an insertion slot 2111, the insertion slot 2111 is a groove with a downward opening, the conductive insertion tab 212 is disposed in the insertion slot 2111, and the conductive insertion tab 212 is disposed on a top wall of the insertion slot 2111; seat 111 is located in slot 2111. With such an arrangement, the base 111 is inserted into the slot 2111, and the conductive insertion piece 212 is inserted into the insertion gap 113, which is beneficial to ensuring the reliability and stability of the insertion of the connection base 110 and the connection head 210, and avoiding the connection base 110 and the connection head 210 from being separated from each other to affect the backlight.

In order to further improve the reliability of the connection between the connection base 110 and the connection head 210, in the embodiment of the present application, the insertion slot 2111 includes two second side walls 2112 disposed oppositely, the two second side walls 2112 are disposed at intervals along the Y axis, two ends of the two second side walls 2112 are respectively provided with an arc-shaped side wall, and the two arc-shaped side walls, the two second side walls 2112 and the light bar 200 enclose the insertion slot 2111 which is open downwards. The two second side walls 2112 are respectively provided with a notch 2113 and a clamping arm 2114 arranged in the notch 2113; one end of the clamp arm 2114 is attached to a side wall of the notch 2113, and the top end of the clamp arm 2114 is attached to the top side wall of the notch 2113 in the orientation shown in fig. 6; the other end of the chucking arm 2114 extends obliquely toward the outside of the insertion slot 2111 and forms an inclined portion 2115, and in the direction shown in fig. 6, the bottom end of the chucking arm 2114 is inclined toward the outside of the insertion slot 2111 and extends to form the inclined portion 2115. The middle section of the clamping arm 2114 is inclined toward the inside of the slot 2111, so that the clamping arm 2114 abuts against the two first side walls 1112 of the seat body 111, thereby clamping the seat body 111, and facilitating improvement of the reliability and stability of the plugging of the connecting seat 110 and the connecting head 210. The inclined portion 2115 provided at the other end of the clamp arm 2114 not only ensures the abutment force of the clamp arm 2114 against the first side wall 1112, but also prevents the end of the clamp arm 2114 from scratching the housing 111.

Fig. 7 is a schematic view illustrating a connection seat and a connection head according to another embodiment of the present application.

Referring to fig. 7, in another embodiment of the present application, the connector 210 includes a housing portion 213 and a conductive abutting portion 214, the housing portion 213 forms a fitting space 2131, the conductive abutting portion 214 is disposed on an inner wall surface of the housing portion 213, for example, the conductive abutting portion 214 is disposed on each of a left inner wall surface and a right inner wall surface of the housing portion 213, and at least a portion of the conductive abutting portion 214 is embedded in the housing portion 213 and electrically connected to the light bar 200. The conductive contact portion 214 is provided on the inner wall surface of the housing portion 213, and the structure is stable and reliable.

The connecting socket 110 includes a base 114 and an elastic conductive sheet 115 disposed on a side surface of the base 114, the base 114 is inserted into the fitting space 2131 along a direction perpendicular to the adapting circuit board 100, and the elastic conductive sheet 115 is abutted against the conductive abutting portion 214, so as to electrically connect the light bar 200 and the adapting circuit board 100. The structure and function of the elastic conductive sheet 115 can refer to the conductive elastic sheet 112 of the above embodiments, and are not described herein again.

It is understood that the conductive abutting portion 214 and the elastic conductive sheet 115 may be made of a metal material, or may be made of other conductive materials, and the embodiment of the present invention is not limited thereto.

The connector 210 of the embodiment of the present application is inserted into the connecting socket 110 along the direction perpendicular to the adapting circuit board 100, and has a simple structure, and is easy and convenient to assemble, thereby being beneficial to improving the assembling efficiency.

Fig. 8 is a bottom view of a backlight module according to an embodiment of the present disclosure; fig. 9 is a rear view of a backlight module according to an embodiment of the present application.

With reference to fig. 1, 8, and 9, the backlight module of the embodiment of the present application further includes a back plate 300, the back plate 300 provides an installation space for the light bar 200 and the adapting circuit board 100, the light bar 200 and the adapting circuit board 100 are both fixed in front of the back plate 300, the light bar 200 can be adhered in front of the back plate 300, the adapting circuit board 100 can be adhered on the back plate 300, and the adapting circuit board 100 can be fixed on the back plate 300 by screws.

In some embodiments, the power cord is electrically connected to the adapting circuit board 100 to supply power to the light bar 200. The power cord may be adhered to the back sheet 300 by a high temperature adhesive tape.

In other embodiments, with reference to fig. 9, the backlight module includes a power board 400 and a connecting wire 500, the power board 400 is fixed on the back surface of the back plate 300, for example, the power board 400 is fixed on the back surface of the back plate 300 by screws, and for example, the power board 400 is adhered on the back surface of the back plate 300. The backboard 300 is provided with the via hole 310, one end of the connecting wire 500 is electrically connected with the power panel 400, and the other end of the connecting wire 500 penetrates through the via hole 310 to be electrically connected with the adapter circuit board 100, so that wiring in front of the backboard 300 is not needed, the process can be saved, the working time can be optimized, and the assembly efficiency can be improved.

Fig. 10a to 10c are assembly flow charts of the backlight module according to the embodiment of the present application. With reference to fig. 10a to 10c, an assembly process of the backplane module according to the embodiment of the present disclosure is described.

Referring to fig. 10a, the transition circuit board 100 is fixed to the front of the back plate 300, for example, the transition circuit board 100 is fixed to the front of the back plate 300 by screws.

Referring to fig. 10b, the positioning jigs 600 are installed at the left and right ends of the back plate 300, the positioning jigs 600 are provided with positioning grooves 610, the positioning grooves 610 of the positioning jigs 600 at the left and right ends are opposite to each other, and the positioning grooves 610 are opposite to the connecting seats 110 on the adapting circuit board 100.

With reference to fig. 10c, glue is dispensed on the back of the light bar 200; then, the connectors 210 of the light bar 200 are inserted into the connecting sockets 110 in a direction perpendicular to the adapting circuit board 100, and the light bar 200 is adhered to the front of the back plate 300.

Referring to fig. 9, the rear panel 300 is turned over, the power panel 400 is fixed on the rear surface of the rear panel 300, and the connection line 500 is used to connect the switching power panel 100 and the power panel 400, so that the light bar 200 can emit light to provide backlight for the lcd panel.

The backlight module and the display device provided by the embodiment of the application have the following advantages at least:

1. the backlight module of this application embodiment cancels lamp strip line power supply, utilizes switching circuit board 100 power supply, and lamp strip 200 and switching circuit board 100 adopt the mode of perpendicular plug to realize the electricity and connect, and the equipment is simple quick, and is efficient, does benefit to and realizes automatic equipment.

2. The power panel 400 is arranged on the back face of the back plate 300, the through hole 310 is formed in the back plate 300, one end of the connecting wire 500 is electrically connected with the power panel 400, the other end of the connecting wire 500 penetrates through the through hole 310 to be electrically connected with the adapter circuit board 100, a lamp wire and a high-temperature adhesive tape do not need to be arranged in front of the back plate 300, the process can be saved, the working hours can be optimized, and the assembling efficiency can be further improved.

3. Switching circuit board 100 is located between two lamp strip subassemblies, can play the effect of lamp strip location, only need set up positioning jig 600 at the both ends of backplate 300 can, reduce positioning jig 600's man-hour, do benefit to further improvement backlight unit's packaging efficiency.

In the description above, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A backlight module, comprising: the lamp strip assembly comprises a switching circuit board and at least two groups of lamp strip assemblies;

the lamp strip assemblies are arranged at intervals along a first preset direction and comprise a plurality of lamp strips extending along the first preset direction, the lamp strips are arranged at intervals along a second preset direction, and an included angle between the second preset direction and the first preset direction is larger than zero;

the switching circuit board is positioned between the two groups of the light bar assemblies, extends along the second preset direction, and is provided with a plurality of connecting seats, and the connecting seats are arranged corresponding to the light bars; the lamp strip is close to one end of the switching circuit board is provided with a connector, and the connector is inserted into the connecting seat along the direction perpendicular to the switching circuit board so that the lamp strip is electrically connected with the switching circuit board.

2. The backlight module as claimed in claim 1, wherein the connecting socket comprises a socket body and a conductive elastic sheet, the socket body is fixed on the adapting circuit board, the socket body is provided with a receiving groove, and the conductive elastic sheet is located in the receiving groove;

the connector comprises a body part and a conductive insertion sheet arranged on the body part, the body part is fixed on the lamp strip, the body part is inserted into the base body along a direction perpendicular to the switching circuit board, and the conductive insertion sheet is abutted to the conductive elastic sheet.

3. The backlight module according to claim 2, wherein the receiving groove comprises two first sidewalls disposed opposite to each other, the two first sidewalls are respectively provided with the conductive elastic pieces, and an insertion gap is formed between the conductive elastic pieces on the two first sidewalls; the conductive insertion sheet is inserted in the insertion gap.

4. The backlight module according to claim 3, wherein the conductive elastic sheet comprises an arc-shaped elastic abutting portion and connecting arms disposed at two ends of the elastic abutting portion, at least a portion of the connecting arms are embedded in the first sidewall, the elastic abutting portion protrudes from the first sidewall, and the elastic abutting portion abuts against the conductive insertion sheet.

5. The backlight module according to any one of claims 2-4, wherein the body portion is provided with a slot, and the conductive insert is disposed in the slot; the seat body is positioned in the slot.

6. The backlight module according to claim 5, wherein the slot comprises two second sidewalls disposed oppositely, the two second sidewalls are respectively provided with a notch and a clamping arm disposed in the notch, one end of the clamping arm is connected to the sidewall of the notch, the other end of the clamping arm extends obliquely outward of the slot and forms an inclined portion, and a middle portion of the clamping arm is inclined inward of the slot, so that the clamping arm abuts against the seat.

7. The backlight module according to claim 1, wherein the connector comprises a housing portion and a conductive abutting portion, the housing portion forms a fitting space, and the conductive abutting portion is disposed on an inner wall surface of the housing portion;

the connecting seat comprises a base and an elastic conducting strip arranged on the side surface of the base, the base is inserted into the matching space along the direction perpendicular to the switching circuit board, and the elastic conducting strip is abutted against the conductive abutting part.

8. The backlight module according to any one of claims 1-4, further comprising a back plate, wherein the light bar and the adapting circuit board are fixed on the front of the back plate.

9. The backlight module as claimed in claim 8, wherein the backlight module comprises a power board and a connecting wire, the power board is fixed on the back surface of the back plate, a via hole is formed in the back plate, one end of the connecting wire is electrically connected to the power board, and the other end of the connecting wire passes through the via hole and is electrically connected to the adapting circuit board.

10. A display device, comprising a liquid crystal display panel and the backlight module of any one of claims 1-9, wherein the liquid crystal display panel is mounted in front of the backlight module.

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