CN216956581U - Liquid crystal display module - Google Patents

Abstract

The application belongs to the technical field of liquid crystal display, and more particularly relates to a liquid crystal display module. The liquid crystal display module comprises a back plate, a middle frame and an inner frame, wherein the middle frame is positioned on the first side of the back plate and connected with the back plate, and a cut surface is formed at one end, close to the middle frame, of the back plate; the inner frame is arranged between the cut surface and the middle frame and abuts against the cut surface to cover the cut surface. When the liquid crystal display module assembly, at first place the backplate level on the production conveying line, then drive the inside casing and remove to the direction that is close to the backplate, support on the cutting surface until the inside casing, in order to cover the cutting surface, drive the center and remove to the direction that is close to the backplate after that, at this in-process, the center will take place to touch with the inside casing, and can not take place to touch with the cutting surface of backplate, thereby avoid backplate and center to scrape the center lateral wall and produce clastic possibility at the cutting surface of block in-process backplate, the packaging efficiency of module has been guaranteed.

Description

Liquid crystal display module

Technical Field

The application belongs to the technical field of liquid crystal display, and more specifically relates to a liquid crystal display module.

Background

At present, most display device's module inner structure includes backplate and center in the market, these both generally adopt the direct mode of blocking the center of backplate to realize connecting, however because the backplate is formed with the cut surface near the one end of center, simultaneously because the backplate adopts hard material to make, and the center adopts the plasticity material to make, consequently both scrape the center lateral wall very easily and produce the piece at the cut surface of the in-process backplate of block, the piece falls into the optical cavity, it is bad easily to produce the foreign matter when module assembling process and finished product, lead to the module to need the rework, seriously influence production efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a liquid crystal display module, which aims to solve the technical problem that in the prior art, a backboard and a middle frame are easy to generate scraps in the clamping process.

In order to achieve the above object, according to an aspect of the present application, there is provided a liquid crystal display module including: a back plate; the middle frame is positioned on the first side of the back plate and connected with the back plate, and a cut surface is formed at one end, close to the middle frame, of the back plate; the inner frame is arranged between the cut surface and the middle frame and abuts against the cut surface to cover the cut surface.

Optionally, the inner frame comprises an inner frame body and a protection part, the inner frame body is arranged on one side, far away from the middle frame, of the edge of the back plate, the protection part is arranged between the cut surface and the middle frame and forms a preset included angle with the inner frame body, and the protection part abuts against the cut surface to cover the cut surface.

Optionally, the backboard comprises a backboard body and a connecting part, the connecting part is arranged on the first side of the backboard body and forms a preset included angle with the backboard body, the connecting part is arranged between the middle frame and the inner frame body, and the cut surface is formed at one end of the connecting part, which is far away from the backboard body;

the inside casing still includes first joint spare, and first joint spare sets up on the inside casing body, offers on the connecting portion to supply first joint spare male first joint groove, and first joint spare can insert first joint inslot, and the backplate is connected through the block in first joint spare and first joint groove with the inside casing.

Optionally, the inner frame further includes a limiting member, the limiting member is disposed on a side surface of the inner frame body close to the backboard body, and a first limiting groove for inserting the limiting member is formed in the backboard body, so as to limit the inner frame on the backboard.

Optionally, a second limiting groove is formed in the back plate body, and the inner frame body is installed in the second limiting groove.

Optionally, the backboard further comprises a second clamping piece, the second clamping piece is arranged on the side face, far away from the inner frame, of the connecting portion, a second clamping groove for inserting the second clamping piece is formed in the middle frame, the second clamping piece can be inserted into the second clamping groove, and the middle frame and the backboard are connected through the clamping of the second clamping piece and the second clamping groove.

Optionally, the connecting portion includes a connecting frame formed by connecting four frame bodies end to end, the inner frames are three, the three inner frames are respectively disposed on one side of three adjacent frame bodies, and the two inner frames are disposed on two sides of another inner frame.

Optionally, the middle of the three inner frames is a middle frame, the two side frames are side frames, and one end of the middle frame close to the two side frames is provided with a pressing portion for pressing the two side frames against the back plate.

Optionally, the liquid crystal display module further includes a reflector plate, a light guide plate, and a diaphragm, the reflector plate is disposed on a side of the inner frame away from the back plate, and the reflector plate, the light guide plate, and the diaphragm are sequentially connected along a direction away from the inner frame, and are all disposed between the inner frame and the middle frame.

Optionally, the back plate is made of a metal material, and the middle frame and the inner frame are both made of a plastic material.

The application provides a liquid crystal display module's beneficial effect lies in: compared with the prior art, in the application, when the liquid crystal display module is assembled, the back plate is horizontally placed on a production conveying line, the inner frame is driven to move towards the direction close to the back plate until the inner frame abuts against the cut surface to cover the cut surface, and the middle frame is driven to move towards the direction close to the back plate; and finally, connecting the middle frame with the back plate to finish the assembly work of the liquid crystal display module.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is an exploded schematic view of a liquid crystal display module according to an embodiment of the present disclosure;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is an enlarged schematic view at B of FIG. 1;

FIG. 4 is a cross-sectional side view of a liquid crystal display module according to an embodiment of the present disclosure;

FIG. 5 is a cross-sectional view of a liquid crystal display module according to an embodiment of the present disclosure;

FIG. 6 is an enlarged schematic view at C of FIG. 5;

fig. 7 is a schematic structural diagram of an inner frame according to an embodiment of the present application;

fig. 8 is an enlarged schematic view at D in fig. 7.

Reference numerals referred to in the above figures are detailed below:

100. a back plate; 110. a back plate body; 111. a first limit groove; 112. a second limit groove; 120. a connecting portion; 121. cutting off the section; 122. a first clamping groove; 130. a second clip member; 200. a middle frame; 201. a second clamping groove; 300. an inner frame; 310. an inner frame body; 320. a protection part; 330. a first clip member; 340. a stopper; 350. a pressing part; 360. is pressed against the groove; 400. a reflective sheet; 500. a light guide plate; 600. a membrane; 800. a heat dissipation aluminum plate; 900. a light bar.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. The embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

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

Just as record in the background art, at present, most of display device's module inner structure includes backplate and center in the market, these both generally adopt the direct mode of blocking the center of backplate to realize connecting, however because the backplate is formed with the cut surface near the one end of center, simultaneously because the backplate adopts hard material to make, and the center adopts plastic material to make, consequently both scrape the center lateral wall very easily and produce the piece at the cut surface of the in-process backplate of block, the piece falls into in the optical cavity, it is bad easily to produce the foreign matter when module assembling process and finished product, it needs the rework to lead to the module, seriously influence production efficiency.

Referring to fig. 1 to 6, to solve the above problems, according to an aspect of the present application, an embodiment of the present application provides a liquid crystal display module including a backplate 100, a middle frame 200 and an inner frame 300, wherein the middle frame 200 is located at a first side of the backplate 100, the middle frame 200 is connected to the backplate 100, and a cut surface 121 is formed at one end of the backplate 100 close to the middle frame 200; the inner frame 300 is disposed between the cut surface 121 and the inner frame 200, and the inner frame 300 abuts against the cut surface 121 to cover the cut surface 121.

In specific application, when the liquid crystal display module of the embodiment is assembled, the back plate 100 is horizontally placed on a production conveying line, then the inner frame 300 is driven to move towards the direction close to the back plate 100 until the inner frame 300 abuts against the cut surface 121 to cover the cut surface 121, and then the middle frame 200 is driven to move towards the direction close to the back plate 100, in the process, the middle frame 200 will touch the inner frame 300 and will not touch the cut surface 121 of the back plate 100, so that the possibility that the cut surface 121 of the back plate 100 scrapes the side wall of the middle frame 200 to generate chips in the clamping process of the back plate 100 and the middle frame 200 is avoided, and the assembly efficiency of the module is ensured; finally, the middle frame 200 is connected with the back plate 100, and the assembly work of the liquid crystal display module can be completed. The production lines are well known to those skilled in the art and are not described in detail herein.

Referring to fig. 1 to 6, the inner frame 300 of the present embodiment includes an inner frame body 310 and a protection portion 320, the inner frame body 310 is disposed on a side of the edge of the backplate 100 away from the middle frame 200, the protection portion 320 is disposed between the cut surface 121 and the middle frame 200 and forms a predetermined included angle with the inner frame body 310, and the protection portion 320 abuts against the cut surface 121 to cover the cut surface 121.

Specifically, the inner frame body 310 and the protection portion 320 form a preset included angle of 90 degrees, the inner frame body 310 and the protection portion 320 are designed to be integrally formed, and in the embodiment of the present application, the protection portion 320 is a long strip to cover the cutting section 121.

In a specific application, the inner bezel 300 moves towards the direction close to the backplate 100, the inner bezel body 310 will be attached to the backplate 100, and the protection portion 320 will be attached to the cut-off surface 121 to cover the cut-off surface 121, so as to avoid the possibility of chipping caused by the cut-off surface 121 of the backplate 100 scraping the side wall of the middle frame 200 during the engagement process between the backplate 100 and the middle frame 200.

More specifically, the protection portions 320 of the present embodiment are provided in plurality, the protection portions 320 are disposed at equal intervals along the length direction of the inner frame body 310, and the two opposite ends of the protection portions 320 along the length direction are both processed with rounded corners, so as to reduce the possibility of debris generation caused by the contact between the middle frame 200 and the protection portions 320.

In order to connect the inner frame 300 and the backplate 100, referring to fig. 1 to 6, the backplate 100 of the present embodiment includes a backplate body 110 and a connecting portion 120, the connecting portion 120 is disposed on a first side of the backplate body 110 and forms a predetermined included angle with the backplate body 110, the connecting portion 120 is disposed between the inner frame 310 and the middle frame 200, and a cutting surface 121 is formed at an end of the connecting portion 120 away from the backplate body 110.

The inner frame 300 of this embodiment further includes a first clamping member 330, the first clamping member 330 is disposed on the inner frame body 310, the connecting portion 120 is provided with a first clamping groove 122 for the first clamping member 330 to be inserted, the first clamping member 330 can be inserted into the first clamping groove 122, and the back plate 100 and the inner frame 300 are connected by the first clamping member 330 and the first clamping groove 122.

Specifically, the first clamping members 330 of the present embodiment are provided in a plurality, and the plurality of first clamping members 330 are arranged at equal intervals along the length direction of the inner frame body 310. In addition, the first side of the backplate body 110 and the first side of the backplate 100 do not represent the same meaning, the first side of the backplate body 110 refers to the side of the end surface of the backplate body 110, and the first side of the backplate 100 refers to the side of the backplate 100 away from the inner frame 300.

The inner frame body 310 of the present embodiment includes a first body section and a second body section, wherein a 90 degree included angle is formed between the first body section and the second body section, and the first engaging member 330 is disposed on the first body section. In specific application, when the inner frame 300 is connected to the back plate 100, the first clamping member 330 is aligned with the first clamping groove 122, and then the inner frame 300 is driven to move towards the direction close to the back plate 100 until the first clamping member 330 is clamped into the first clamping groove 122, so that the back plate 100 is connected to the inner frame 300, at this time, the first body section is attached to the connecting portion 120, the second body section is attached to the back plate body 110, and the protecting portion 320 is attached to the cut-off surface 121.

More specifically, in the present embodiment, a chamfer is processed on a side surface of the first clamping member 330 near the connecting portion 120, so that the first clamping member 330 can be more smoothly clamped into the first clamping groove 122; in addition, because the liquid crystal display module is the equipment that the mode of putting that the level was placed realized on the production conveying line, consequently inside casing 300 only need realize simple block with backplate 100 and can avoid inside casing 300 and backplate 100 to take place to break away from, consequently in this application embodiment, the cross sectional area of first joint spare 330 is less than the cross sectional area of first joint groove 122 notch, and this kind of design has not only improved backplate 100 and inside casing 300 greatly and has realized the convenience of block, has also improved the packaging efficiency simultaneously.

In order to limit the inner frame 300 on the back plate 100 to prevent the inner frame 300 from moving on the back plate 100, referring to fig. 2 and 4, the inner frame 300 of the present embodiment further includes a limiting member 340, the limiting member 340 is disposed on a side surface of the inner frame body 310 close to the back plate body 110, and the back plate body 110 is provided with a first limiting groove 111 for the limiting member 340 to be inserted into, so as to limit the inner frame 300 on the back plate 100.

Specifically, the limiting member 340 of the present embodiment is disposed on the second body segment; the limiting members 340 are provided in plural, and the plural limiting members 340 are arranged at equal intervals along the length direction of the inner frame body 310, in the embodiment of the present application, the limiting members 340 are cylindrical stop ribs, but in other examples, the limiting members 340 may also be stop ribs with other cross-sectional shapes.

In specific applications, when the back plate 100 is connected to the inner frame 300, the first clamping member 330 is aligned with the first clamping groove 122, and then the inner frame 300 is driven to move toward the back plate 100 until the first clamping member 330 is clamped into the first clamping groove 122, and at this time, the limiting member 340 is also clamped into the first limiting groove 111, so as to limit the inner frame 300 to move on the back plate body 110 along the length direction of the back plate body 110, thereby preventing the back plate 100 from being separated from the inner frame 300.

More specifically, because the liquid crystal display module is assembled on the production line according to the horizontally placed placing manner, the inner frame 300 and the back plate 100 can be prevented from being separated from each other only by simply engaging the inner frame 300 with the back plate 100, and therefore, in the embodiment of the present application, the cross-sectional area of the limiting member 340 is smaller than the cross-sectional area of the notch of the first limiting groove 111.

Referring to fig. 2 to 4, as a preferred mode in the embodiment of the present application, the back plate body 110 of the embodiment is provided with a second limiting groove 112, and the inner frame body 310 is installed in the second limiting groove 112.

Specifically, the second limiting groove 112 of the present embodiment is recessed on the back plate body 110. In a specific application, after the back plate 100 is connected to the inner frame 300, the inner frame body 310 is limited in the second limiting groove 112, so as to further avoid the possibility that the inner frame 300 is separated from the back plate 100.

Specifically, the edge of the inner frame body 310 close to the back plate 100 of the present embodiment is processed with a rounded corner, so as to reduce the possibility of scraping and chipping between the inner frame body 310 and the back plate body 110 when the inner frame body 310 slides on the back plate body 110.

In order to connect the backboard 100 and the middle frame 200, referring to fig. 2 and 4, the backboard 100 of this embodiment further includes a second clamping member 130, the second clamping member 130 is disposed on the side of the connecting portion 120 away from the inner frame 300, a second clamping groove 201 for inserting the second clamping member 130 is disposed on the middle frame 200, the second clamping member 130 can be inserted into the second clamping groove 201, and the middle frame 200 and the backboard 100 are connected by the clamping of the second clamping member 130 and the second clamping groove 201.

Specifically, the second clamping members 130 of the present embodiment are provided in a plurality, and the plurality of second clamping members 130 are arranged at equal intervals along the length direction of the connecting portion 120, in the embodiment of the present application, the second clamping members 130 are square blocks.

In specific application, when the middle frame 200 is connected with the backboard 100, the second clamping piece 130 is aligned with the second clamping groove 201, and then the middle frame 200 is driven to move towards the direction close to the connecting portion 120 until the second clamping piece 130 is clamped into the second clamping groove 201, so that the middle frame 200 is clamped with the backboard 100, and at this time, the middle frame 200 is attached to the side face, far away from the inner frame 300, of the connecting portion 120.

More specifically, in the present embodiment, a rounded corner is formed on a side surface of the second clamping member 130 away from the back plate body 110, so that the second clamping member 130 can be smoothly clamped into the second clamping groove 201, and the possibility of debris generated by the contact between the second clamping member 130 and the middle frame 200 during the clamping process of the middle frame 200 and the back plate 100 is reduced; in addition, because the liquid crystal display module is the equipment that the mode of putting that the level was placed realized on the production conveying line, consequently center 200 and backplate 100 only need realize simple block and can avoid center 200 and backplate 100 to take place the possibility that breaks away from, consequently in this application embodiment, the area of the cross section of second joint spare 130 is less than second joint groove 201 notch cross sectional area to improve convenience and the packaging efficiency that backplate 100 and inside casing 300 realized the block.

Referring to fig. 5 to 7, as a preferable mode in the embodiment of the present application, the connection portion 120 of the present embodiment includes a connection frame formed by connecting four frame bodies end to end, three inner frames 300 are provided, the three inner frames 300 are respectively provided at one side of three adjacent frame bodies, and two inner frames 300 are provided at both sides of another inner frame 300.

The inner frame 300 is provided with three parts, so that the possibility that the cutting surface 121 of the back plate 100 scrapes the side wall of the middle frame 200 to generate scraps in the clamping process of the back plate 100 and the middle frame 200 is reduced, the production cost is saved, and the comprehensive benefit is improved.

Specifically, the three adjacent frame bodies of the present embodiment have the same structure, the remaining one frame body of the four frame bodies is different from the three adjacent frame bodies, the remaining one frame body is provided with a threaded hole, and the middle frame 200 is also provided with a bolt hole, so that the remaining one frame body is connected with the middle frame 200 through a bolt. This kind of design has not only further improved backplate 100 and center 200's joint strength, has also reduced the work load that backplate 100 and center 200 realized the block simultaneously, has improved liquid crystal display module's packaging efficiency.

Referring to fig. 7 and 8, as a preferable mode in the embodiment of the present application, the middle of the three inner frames 300 is a middle frame, the two sides are side frames, and one end of the middle frame near the two side frames is provided with a pressing portion 350, so as to press the two side frames against the back plate 100.

Specifically, in this embodiment of the application, the pressing portion 350 is a pressing sheet, the pressing portion 350 is integrally formed on the end surfaces of the middle frame near the two side frames, and the end surfaces of the two side frames near the middle end are both provided with the pressed groove 360.

In specific application, the two side frames are connected with the back plate 100, and then the middle frame is connected with the back plate 100, at this time, the pressing portion 350 on the middle frame will press against the bottoms of the pressed grooves 360 of the two side frames. The design not only facilitates the connection between the inner frame 300 and the back plate 100 and improves the convenience of operation, but also improves the connection strength between the inner frame 300 and the back plate 100 and reduces the possibility of the separation between the back plate 100 and the inner frame 300.

More specifically, the thickness of the pressing portion 350 of the present embodiment is equal to the depth of the pressed groove 360, so that the end surface of the middle frame away from the back plate 100 and the end surfaces of the two side frames away from the back plate 100 are kept coplanar, thereby ensuring normal use of the product.

Referring to fig. 3 to 6, the lcd module of the present embodiment further includes a reflective sheet 400, a light guide plate 500 and a diaphragm 600, the reflective sheet 400 is disposed on a side of the inner frame 300 away from the back plate 100, and the reflective sheet 400, the light guide plate 500 and the diaphragm 600 are sequentially connected along a direction away from the inner frame 300 and are disposed between the inner frame 300 and the middle frame 200.

Specifically, the reflective sheet 400, the light guide plate 500 and the film 600 of the present embodiment are connected by gluing.

In a specific application, when the liquid crystal display module is assembled, the back plate 100 is connected with the inner frame 300, then the reflective sheet 400, the light guide plate 500 and the diaphragm 600 are bonded, then the reflective sheet 400, the light guide plate 500 and the diaphragm 600 are installed between the middle frame 200 and the back plate 100, and finally the middle frame 200 is connected with the back plate 100, so that the reflective sheet 400, the light guide plate 500 and the diaphragm 600 are buckled between the back plate 100 and the middle frame 200.

Referring to fig. 1, as an optional manner in the embodiment of the present application, the liquid crystal display device of the embodiment further includes a heat dissipation aluminum plate 800 and a light bar 900, the heat dissipation aluminum plate 800 is installed on the end surface of the back plate body 110 close to the inner frame 300, and the light bar 900 is installed on the side surface of the frame body facing the back plate body 110, where the frame body is provided with a threaded hole.

As a preferable mode in the embodiment of the present application, the back plate 100 of the present embodiment is made of a metal material, and the middle frame 200 and the inner frame 300 are both made of a plastic material. By adopting the above design, the possibility of debris generated by the contact between the middle frame 200 and the inner frame 300 when the middle frame 200 is connected with the backboard 100 can be greatly avoided.

In summary, the liquid crystal display module provided in this embodiment has at least the following beneficial effects: compared with the prior art, in the application, when the liquid crystal display module is assembled, firstly, the back plate 100 is horizontally placed on a production conveying line, then the inner frame 300 is driven to move towards the direction close to the back plate 100 until the inner frame 300 abuts against the cut surface 121 to cover the cut surface 121, and then the middle frame 200 is driven to move towards the direction close to the back plate 100, in the process, the middle frame 200 is in contact with the inner frame 300 and is not in contact with the cut surface 121 of the back plate 100, so that the possibility that the cut surface 121 of the back plate 100 scrapes the side wall of the middle frame 200 to generate scraps in the clamping process of the back plate 100 and the middle frame 200 is avoided, and the assembly efficiency of the module is ensured; finally, the middle frame 200 is connected with the back plate 100, and the assembly work of the liquid crystal display module can be completed.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (10)

1. The utility model provides a liquid crystal display module assembly which characterized in that includes:

a back plate (100);

the middle frame (200) is positioned on the first side of the backboard (100), the middle frame (200) is connected with the backboard (100), and a cut surface (121) is formed at one end, close to the middle frame (200), of the backboard (100);

an inner frame (300), the inner frame (300) being disposed between the cut surface (121) and the middle frame (200), the inner frame (300) abutting against the cut surface (121) to cover the cut surface (121).

2. The LCD module as claimed in claim 1, wherein the inner frame (300) comprises an inner frame body (310) and a protection portion (320), the inner frame body (310) is disposed on a side of the edge of the back plate (100) away from the middle frame (200), the protection portion (320) is disposed between the cut surface (121) and the middle frame (200) and forms a predetermined included angle with the inner frame body (310), and the protection portion (320) abuts against the cut surface (121) to cover the cut surface (121).

3. The LCD module as claimed in claim 2, wherein the backplate (100) comprises a backplate body (110) and a connecting portion (120), the connecting portion (120) is disposed on a first side of the backplate body (110) and forms a predetermined included angle with the backplate body (110), the connecting portion (120) is disposed between the middle frame (200) and the inner frame body (310), and the cutting surface (121) is formed at an end of the connecting portion (120) away from the backplate body (110);

the inner frame (300) further comprises a first clamping piece (330), the first clamping piece (330) is arranged on the inner frame body (310), the connecting portion (120) is provided with a first clamping groove (122) for the first clamping piece (330) to insert, the first clamping piece (330) can be inserted into the first clamping groove (122), the backboard (100) is connected with the inner frame (300) through the first clamping piece (330) and the clamping of the first clamping groove (122).

4. The lcd module as claimed in claim 3, wherein the inner frame (300) further comprises a stopper (340), the stopper (340) is disposed on a side surface of the inner frame body (310) close to the backplate body (110), and the backplate body (110) is formed with a first stopper groove (111) for inserting the stopper (340) therein, so as to limit the inner frame (300) on the backplate (100).

5. The LCD module as claimed in claim 3, wherein the back plate body (110) defines a second limiting groove (112), and the inner frame body (310) is mounted in the second limiting groove (112).

6. The LCD module as recited in claim 3, wherein the back panel (100) further comprises a second clamping member (130), the second clamping member (130) is disposed on a side of the connecting portion (120) away from the inner frame (300), a second clamping groove (201) for the second clamping member (130) to insert is disposed on the middle frame (200), the second clamping member (130) can be inserted into the second clamping groove (201), and the middle frame (200) and the back panel (100) are connected by the second clamping member (130) and the second clamping groove (201).

7. The LCD module as claimed in claim 3, wherein the connecting portion (120) comprises four frame bodies connected end to form a connecting frame, the number of the inner frames (300) is three, three inner frames (300) are respectively disposed on one side of three adjacent frame bodies, and two inner frames (300) are disposed on two sides of the other inner frame (300).

8. The LCD module as claimed in claim 7, wherein the middle of the three inner frames (300) is a middle frame, the two sides of the middle frame are side frames, and the ends of the middle frame close to the two side frames are each provided with a pressing portion (350) for pressing the two side frames against the back plate (100).

9. The LCD module according to any of claims 1 to 8, further comprising a reflective sheet (400), a light guide plate (500) and a membrane (600), wherein the reflective sheet (400) is disposed on a side of the inner frame (300) away from the back plate (100), and the reflective sheet (400), the light guide plate (500) and the membrane (600) are sequentially connected along a direction away from the inner frame (300) and disposed between the inner frame (300) and the middle frame (200).

10. The LCD module as claimed in any one of claims 1 to 8, wherein the back plate (100) is made of metal material, and the middle frame (200) and the inner frame (300) are made of plastic material.

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