CN216210354U

CN216210354U - LED backlight module and display device

Info

Publication number: CN216210354U
Application number: CN202122508021.2U
Authority: CN
Inventors: 李俊鑫
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-04-05
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses an LED backlight module and a display device, wherein the LED backlight module comprises a back plate, a lamp plate, a connecting structure and a frame, wherein the back plate is provided with an installation groove, and the wall of the installation groove is concavely provided with a clamping groove; the lamp panel is arranged on one side of the backboard, and the lamp panel is provided with a mounting through hole; the connecting structure comprises a connecting column and a limiting part which are arranged at an included angle; the connecting column penetrates through the mounting through hole, the limiting part abuts against one side, close to the back plate, of the lamp panel, a clamping convex block is arranged on the limiting part, the limiting part is inserted into the mounting groove, and the clamping convex block is clamped with the clamping groove; frame demountable installation is in the border position of backplate, the frame at least with a side butt of lamp plate to make joint lug chucking at the chucking inslot. Through setting up connection structure, mounting groove and joint lug, only need to remove the lamp plate along the direction that is on a parallel with the backplate, the installation between lamp plate and the backplate is fixed just can accomplish, need not to paste the lamp plate on the backplate, the installation and the dismantlement of the lamp plate of being convenient for.

Description

LED backlight module and display device

Technical Field

The utility model relates to the technical field of display, in particular to an LED backlight module and a display device comprising the LED backlight module.

Background

The fixing of the Mini LED lamp panel of the existing LED display screen usually adopts double faced adhesive tape, or adopts the mode of combining double faced adhesive tape and glue dispensing to stick to the aluminum-plastic back panel, and the mode has the following problems:

1. the lamp panel and the back plate are high in positioning requirement, the lamp panel is required to be pasted again when slight deviation occurs during operation, and the operation is complicated;

2. after the lamp panel and the back plate are adhered, pressure maintaining operation is required, and operation procedures are increased;

3. the lamp panel and the back plate are difficult to disassemble after being pasted; when the lamp plate breaks down, the lamp plate and the backboard are disassembled with great cost, and the lamp plate beside the lamp plate is easily damaged when the single lamp plate is disassembled, so that the LED display screen is not beneficial to use and maintenance.

SUMMERY OF THE UTILITY MODEL

One object of an embodiment of the present invention is to: the utility model provides a LED backlight module, its lamp plate is fixed convenient, and disassembles easily.

Another object of an embodiment of the present invention is to: the LED display screen is low in maintenance operation difficulty.

In order to achieve the purpose, the utility model adopts the following technical scheme:

in a first aspect, an LED backlight module is provided, which includes:

the back plate is provided with a mounting groove, and the wall of the mounting groove is concavely provided with a clamping groove;

the lamp panel is arranged on one side of the backboard, and is provided with an installation through hole;

the connecting structure comprises a connecting column and a limiting part which are arranged at an included angle; the connecting column penetrates through the mounting through hole, the limiting part abuts against one side, close to the back plate, of the lamp panel, a clamping convex block is arranged on the limiting part, the limiting part is inserted into the mounting groove, and the clamping convex block is clamped with the clamping groove;

the frame, frame demountable installation be in the border position of backplate, the frame at least with a side butt of lamp plate, so that joint lug chucking is in the chucking inslot.

The beneficial effects are that: through setting up connection structure, mounting groove and joint lug, joint lug and chucking groove joint, the joint lug supports tightly with the cell wall in chucking groove, realizes the fixed between lamp plate and the backplate. During the equipment, in connection structure's spliced pole inserted the installation through-hole of lamp plate, and spacing portion then inserted the mounting groove in, only need follow the direction removal lamp plate that is on a parallel with the backplate, and the lamp plate drives connection structure and removes. When the clamping lug card in spacing portion is gone into the chucking groove, the installation between lamp plate and the backplate is fixed just can accomplish, need not to paste the lamp plate on the backplate, the installation and the dismantlement of the lamp plate of being convenient for. Set up the frame at a side of lamp plate, the frame can restrict the removal of lamp plate, makes connection structure's joint lug chucking all the time at the chucking inslot, avoids the lamp plate to drop. When the LED backlight module breaks down and needs to be maintained, the frame can be detached firstly, then the lamp panel is moved, the clamping convex blocks can be separated from the clamping grooves, and the disassembly is easy.

In a second aspect, a display device is provided, which includes the LED backlight module.

The beneficial effects are that: the LED backlight module comprises a backboard, a connecting structure, a lamp panel and a frame, wherein the lamp panel is detachably connected with the backboard through the connecting structure, and the frame is abutted against one side edge of the lamp panel to limit the movement of the lamp panel so as to keep the lamp panel and the backboard fixed. Therefore, when the display device comprising the LED backlight module breaks down and needs to be maintained, the frame can be detached firstly, and then the frame and the lamp plate are detached in sequence, so that the detachment difficulty of the lamp plate and the backboard is reduced, the lamp plate and the backboard are prevented from being damaged by external force in the maintenance detachment stage, and the maintenance difficulty and the maintenance cost of the display device are reduced.

Drawings

The utility model is explained in more detail below with reference to the figures and examples.

FIG. 1 is a schematic view of an LED backlight module according to an embodiment of the utility model;

FIG. 2 is a schematic view of the connection column and the lamp panel according to the embodiment of the present invention;

FIG. 3 is a schematic view of the connecting column according to the embodiment of the present invention;

fig. 4 is a schematic partial cross-sectional view of an LED backlight module according to an embodiment of the utility model (a frame is not shown);

FIG. 5 is a schematic view of a backing plate according to an embodiment of the utility model;

fig. 6 is an enlarged schematic view of a portion a of fig. 5.

In the figure:

1. a back plate; 101. a first plate; 102. a second plate; 103. a third plate; 104. mounting grooves; 105. a clamping groove; 2. a lamp panel; 201. mounting a through hole; 2011. a second positioning plane; 3. connecting columns; 301. a limiting part; 3011. clamping the convex block; 302. bonding the plane; 303. a sharp corner structure; 304. a first location plane; 4. a frame; 401. frame strips.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 invention.

As shown in fig. 1, the LED backlight module provided by the present invention includes a lamp panel 2, a back panel 1, a connecting structure and a frame 4.

Referring to fig. 1, as shown in fig. 4, the back plate 1 is provided with a mounting groove 104, and a clamping groove 105 is concavely provided on a groove wall of the mounting groove 104.

Referring to fig. 1, as shown in fig. 2, the lamp panel 2 is disposed on one side of the back panel 1, and the lamp panel 2 is provided with a mounting through hole 201.

Referring to fig. 1, as shown in fig. 3, the connecting structure includes a connecting column 3 and a limiting portion 301 disposed at an included angle. The connecting column 3 runs through the mounting through hole 201, the limiting part 301 abuts against one side of the lamp panel 2 close to the back panel 1, a clamping convex block 3011 is arranged on the limiting part 301, and the limiting part 301 is inserted into the mounting groove 104.

Frame 4 demountable installation is in the border position of backplate 1, and frame 4 is at least with a side butt of lamp plate 2 to make joint lug 3011 chucking all the time in chucking groove 105.

Through setting up connection structure, mounting groove 104 and joint lug 3011, joint lug 3011 and chucking groove 105 joint, joint lug 3011 supports tightly with the cell wall in chucking groove 105, realizes the fixed between lamp plate 2 and the backplate 1. During the equipment, in the spliced pole 3 of connection structure inserted the installation through-hole 201 of lamp plate 2, and spacing portion 301 then inserted mounting groove 104, only need to remove lamp plate 2 along the direction that is on a parallel with backplate 1, and lamp plate 2 drives connection structure and removes. When the clamping lug 3011 on the limiting part 301 is clamped into the clamping groove 105, the installation between the lamp panel 2 and the backboard 1 can be completed fixedly, the lamp panel 2 does not need to be pasted on the backboard 1, and the lamp panel 2 is convenient to install and detach. Set up frame 4 at a side of lamp plate 2, frame 4 can restrict the removal of lamp plate 2, makes connection structure's joint lug 3011 chucking all the time in chucking groove 105, avoids lamp plate 2 to drop.

Correspondingly, when LED backlight unit broke down and need the maintenance, can lift frame 4 off earlier, then remove lamp plate 2, make joint lug 3011 and chucking groove 105 separation, can separate lamp plate 2 and backplate 1 this moment, reduced the dismantlement degree of difficulty of lamp plate 2 and backplate 1, avoid lamp plate 2 and backplate 1 to suffer external force at the maintenance dismantlement stage and appear damaging, reduced LED backlight unit's the maintenance degree of difficulty and cost of maintenance.

In this embodiment, the connection column 3 can serve as a lamp support structure in the display device to support an optical film in the display device, so that the number of devices is reduced, the occupied space of the devices in the display device is saved, the size of the display device can be reduced, and the appearance of the display device is improved.

Alternatively, the connecting column 3 is conical. As shown in fig. 2 and fig. 3 (with reference to fig. 1), one end of the connecting column 3 away from the limiting portion 301 is a pointed structure 303, and in this embodiment, the pointed structure 303 is tapered, so that the shielding of the connecting column 3 on the light of the lamp panel 2 can be reduced, and the display effect is improved.

Specifically, the connection column 3 is provided with a bonding plane 302, and the bonding plane 302 is bonded with a side surface of the lamp panel 2 close to the back panel 1. Through setting up bonding plane 302, can make things convenient for the bonding location between spliced pole 3 and the lamp plate 2, reduce the assembly degree of difficulty between them, improve display device's packaging efficiency.

Alternatively, the connection column 3 of the present embodiment is provided in plurality.

Further, after a plurality of spliced poles 3 and lamp plate 2 were installed, the angle that needs spliced pole 3 of adjustment was unanimous in order to guarantee the joint lug 3011 orientation on all spliced poles 3, and it is fixed with backplate 1 to make lamp plate 2 realize carrying out the joint with the mode that removes.

Referring to fig. 2, as shown in fig. 3, at least one first positioning plane 304 is disposed on the periphery of the connecting column 3. The pore wall correspondence of the installation through hole 201 of lamp plate 2 is provided with second locating plane 2011, and first locating plane 304 and second locating plane 2011 laminating. Through setting up first locating plane 304 and second locating plane 2011, can make things convenient for the installation location between spliced pole 3 and the lamp plate 2. After whole spliced pole 3 and the installation of lamp plate 2, can guarantee that joint lug 3011 on the spliced pole 3 of whole orientation is unanimous to the realization removes lamp plate 2 and just can accomplish and backplate 1 between demountable installation. For example, in the present embodiment, in order to facilitate the processing of the connection posts 3 and the lamp panel 2, for one connection post 3, there are four first positioning planes 304, that is, the cross section of the connection post 3 is rectangular. Accordingly, for one mounting through-hole 201, there are four second registration planes 2011. It should be noted that the first and second positioning planes 304 and 2011 shown in fig. 2 are only examples, and the number of the first and second positioning planes 304 and 2011 is not limited. In practical applications, the number of the first positioning planes 304 and the number of the second positioning planes 2011 may be determined according to practical requirements.

In other embodiments, the mounting slot 104 is a through slot penetrating through the back plate 1. During the equipment, can run through spliced pole 3 backplate 1, make joint lug 3011 support tightly one side that backplate 1 kept away from lamp plate 2, can simplify the structure of backplate 1 like this, reduce the processing degree of difficulty of backplate 1.

Referring to fig. 4 and 5, as shown in fig. 6, specifically, the backplane 1 includes a first plate 101, a second plate 102, and a third plate 103 connected in this order. The second plate 102 is provided with a first through hole, and the third plate 103 is provided with a second through hole at a position corresponding to the first through hole, wherein the size of the second through hole is smaller than that of the first through hole. The second through hole, the first through hole and one side of the first plate 101 close to the second plate 102 together form a mounting groove 104. The clamping protrusion 3011 on the connecting column 3 abuts against one side surface of the third plate 103 close to the second plate 102. Because inside needs additionally to set up chucking groove 105 and is used for cooperating with joint lug 3011 of spliced pole 3 of backplate 1, set up first board 101, second board 102 and third board 103 to mounting groove 104 and chucking groove 105 are moulded to the mode of equipment, can reduce backplate 1's the processing degree of difficulty, thereby reduce display device's manufacturing cost.

Specifically, the mounting groove 104 is provided in plurality, and the first through hole is also provided in plurality accordingly. In this embodiment, the second plate 102 is provided with a first through hole corresponding to each mounting groove 104, so that the influence of the structure of the mounting groove 104 on the strength of the back plate 1 can be reduced, and the strength of the display device can be ensured.

Of course, in other embodiments, a third through hole may be provided on the second plate 102, and all the second through holes correspond to the third through hole, so that the number of the holes of the second plate 102 may be reduced, and the punching process of the back plate 1 is simplified.

In this embodiment, be provided with a plurality of lamp plates 2 in the LED backlight unit, in order to avoid the corner position of lamp plate 2 to appear the warpage, every lamp plate 2 is provided with four spliced poles 3, and four spliced poles 3 are located the bight region of lamp plate 2 respectively, can improve the connection stability between lamp plate 2 and the backplate 1 like this. In other embodiments, each lamp panel 2 may be provided with only one connecting column 3, and may also be provided with two, three, five or even more connecting columns 3, and the number of the connecting columns 3 may be selected as required.

Referring to fig. 2, optionally, a cross section of one end of the connecting column 3 connected to the limiting portion 301 is rectangular, and both the first through hole on the second plate 102 and the second through hole on the third plate 103 are rectangular holes, so that a contact area between the clamping protrusion 3011 and the third plate 103 can be increased, and the clamping protrusion 3011 on the connecting column 3 is prevented from being broken due to too large pressure. At least one hole wall of the first through hole is aligned with the hole wall of the second through hole, so that the size of the first through hole can be properly reduced, and the strength of the backboard 1 is improved. Of course, in other embodiments, the cross section of the end of the connecting column 3 connected to the limiting portion 301 may also be triangular, pentagonal or other irregular patterns, and this embodiment does not require the shape of the cross section of the end of the connecting column 3 connected to the limiting portion 301, and only gives an exemplary reference, and of course, the first through hole and the second through hole need to adapt to the shape of the cross section of the end of the connecting column 3 connected to the limiting portion 301.

Specifically, in this embodiment, the three hole walls of the first through hole are aligned with the three hole walls of the second through hole, so that the size of the first through hole can be reduced to the maximum extent, and the influence of the through hole structure on the strength of the back plate 1 can be reduced as much as possible.

Specifically, the frame 4 includes four frame strips 401, and the four frame strips 401 respectively support four sides of the lamp panel 2. Through setting up four frame strips 401, four frame strips 401 can set up respectively around lamp plate 2, can improve LED backlight unit's outward appearance.

In this embodiment, can be earlier fixed with spliced pole 3 and lamp plate 2 bonding, then insert the mounting groove 104 of backplate 1 with the direction of 3 spacing portions 301 perpendicular to backplate of spliced pole, then remove lamp plate 2 along the direction that is on a parallel with backplate 1, make joint lug 3011 on the lamp plate 2 spliced pole 3 insert to the chucking groove 105 in, the cooperation between joint lug 3011 and the chucking groove 105 has restricted the removal of lamp plate 2 along the direction of perpendicular to backplate 1, then connect frame 4 and backplate 1, frame 4 and backplate 1 installation are accomplished the back, the week portion of frame 4 and lamp plate 2 supports tightly, frame 4 restriction lamp plate 2 is along the removal of the direction that is on a parallel with backplate 1, realize LED backlight unit's fixed.

The embodiment also provides a display device, which comprises the LED backlight module mentioned in any embodiment.

In the embodiment, the LED backlight module is arranged inside the display device housing, the LED backlight module in the display device includes a back plate 1, a connecting structure, a lamp panel 2 and a frame 4, the lamp panel 2 is detachably connected to the back plate 1 through the connecting structure, and the frame 4 abuts against one side edge of the lamp panel 2 to limit the movement of the lamp panel 2, so that the lamp panel 2 and the back plate 1 are fixed; when the LED backlight module of the display device breaks down and needs to be maintained, the shell of the display device can be detached firstly, then the frame 4 and the lamp panel 2 of the LED backlight module are detached in sequence, the lamp panel 2 and the backboard 1 are prevented from being damaged by external force in the maintenance and detachment stage, and the maintenance difficulty and the maintenance cost of the display device are reduced.

Claims

1. An LED backlight module, comprising:

2. The LED backlight module according to claim 1, wherein the back plate comprises a first plate, a second plate and a third plate connected in sequence, the second plate is provided with a first through hole, the third plate is provided with a second through hole corresponding to the first through hole, the second through hole has a smaller size than the first through hole, and the second through hole, the first through hole and a side of the first plate close to the second plate together form the mounting groove.

3. The LED backlight module according to claim 2, wherein the mounting grooves are provided in plurality, and the second plate is provided with a first through hole corresponding to each mounting groove.

4. The LED backlight module according to claim 1, wherein the back plate comprises a first plate, a second plate and a third plate connected in sequence, the second plate has a third through hole, the third plate has a plurality of second through holes, all the second through holes correspond to one third through hole, and the second through hole, the third through hole and a side of the first plate close to the second plate together form the mounting groove.

5. The LED backlight module according to any one of claims 1-4, wherein the mounting groove is a through groove formed in the back plate in a penetrating manner, and the clamping protrusion abuts against one side of the back plate away from the lamp panel.

6. The LED backlight module of any one of claims 1-4, wherein the limiting portion is provided with a bonding plane, and the bonding plane is bonded with a side surface of the lamp panel close to the back plate.

7. The LED backlight module according to any one of claims 1-4, wherein the connecting column has at least one first positioning plane on its periphery, and the mounting through hole has a second positioning plane on its wall, and the first positioning plane and the second positioning plane are attached to each other.

8. The LED backlight module according to any of claims 1-4, wherein the end of the connecting column away from the position-limiting part is a pointed structure.

9. The LED backlight module according to any one of claims 1-4, wherein the frame comprises four frame strips, and the four frame strips respectively abut against four sides of the lamp panel.

10. A display device comprising the LED backlight module according to any one of claims 1 to 9.