Side-in type backlight module and liquid crystal display screen

Abstract

The invention discloses a side-in type backlight module and a liquid crystal display screen, and relates to the technical field of liquid crystal display screens, the side-in type backlight module comprises an installation unit, the installation unit comprises a dismounting assembly and a middle matching assembly connected to one side of the dismounting assembly, and the dismounting assembly comprises a dismounting straight plate and a dismounting baffle connected to the dismounting straight plate; one end of the dismounting straight plate is connected with a dismounting knob; the transmission unit comprises a transmission assembly and a rotary connecting rod rotationally connected to one side of the transmission assembly, and one end of the transmission assembly is connected with a clamping assembly in a matched mode; the light source unit comprises a mounting strip and a lamp mounted in the mounting strip; the main body unit comprises an outer frame and a liquid crystal screen fixedly connected to one side of the outer frame, and a backlight assembly is installed in the outer frame; the problems that in the prior art, the installation process of the module is too tedious, and meanwhile the light guide plate and the LED lamp strip are inconvenient to independently overhaul and replace are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal display screens, and in particular to an edge-entry backlight module and a liquid crystal display screen. Background Art

[0002] There are two ways to distribute the light source of LCD monitors, direct type and side type. Generally speaking, the side type backlight performs better in terms of cost and thickness control, and is suitable for display devices that require ultra-thin design; the traditional side type backlight module usually uses a light guide plate and an LED light bar as core components. A U-shaped notch is set on one side of the light guide plate for installing the LED light bar. The main function of the light guide plate is to guide the light emitted by the LED light bar to the entire display panel to achieve uniform brightness distribution. This design requires precise control of the thickness and material of the light guide plate to ensure that the light can be effectively transmitted and reduce the generation of bright spots. However, during the installation of the backlight module, the light guide plate and the LED light bar are usually fixed together. In this way, when one of the components is damaged, both need to be disassembled and replaced at the same time, which is time-consuming and labor-intensive, and inconvenient to use. At the same time, the installation process of the light guide plate and the LED light bar is too cumbersome and inconvenient to operate. Summary of the invention

[0003] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the problem that the installation process of the module in the above-mentioned prior art is too complicated and it is inconvenient to perform separate maintenance and replacement of the light guide plate and the LED light strip, the present invention is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a side-entry backlight module, comprising an installation unit, the installation unit comprising a disassembly component and an intermediate matching component connected to one side of the disassembly component, and the other side of the intermediate matching component is matched and connected with a positioning component, the disassembly component comprises a disassembly straight plate and a disassembly baffle connected to the disassembly straight plate, and the disassembly baffle is arranged at multiple locations on the disassembly straight plate at equal intervals, and one end of the disassembly straight plate is connected to a disassembly knob;

[0006] A transmission unit, the transmission unit comprising a transmission assembly and a rotating connecting rod rotatably connected to one side of the transmission assembly, and the other side of the transmission assembly is matched with a driving assembly, and one end of the transmission assembly is matched with a clamping assembly;

[0007] The light source unit comprises a mounting bar and a lamp mounted inside the mounting bar.

[0008] As a preferred solution of the edge-entry backlight module and the liquid crystal display screen of the present invention, the intermediate matching component includes a matching frame and a matching plate installed inside the matching frame, and one end of the matching frame is fixedly connected to a connecting seat;

[0009] The matching plate comprises a matching moving plate and a first matching groove arranged on one side of the matching moving plate, and a second matching groove is arranged on the other side of the matching moving plate.

[0010] As a preferred solution of the edge-entry backlight module and liquid crystal display screen described in the present invention, the positioning assembly includes a positioning slider and a positioning block fixedly connected to the positioning slider, and the two ends of the positioning slider are fixedly connected with a first limit slider, one side of the positioning slider is connected with a first spring, and one side of the positioning slider is fixedly connected with a matching rod.

[0011] As a preferred solution of the edge-entry backlight module and liquid crystal display screen described in the present invention, one side edge of the inner part of the second mating groove is inclined so that the mating rod is matingly connected inside the second mating groove, and the disassembly baffle is matingly connected inside the first mating groove.

[0012] As a preferred solution of the edge-entry backlight module and liquid crystal display screen described in the present invention, the transmission assembly includes a transmission shaft and a transmission circular plate fixedly connected to one side of the transmission shaft, and a transmission gear is fixedly connected to the other side of the transmission shaft, and one end of the transmission shaft is fixedly connected to a matching base member.

[0013] As a preferred solution of the edge-entry backlight module and liquid crystal display screen described in the present invention, the mating base member includes a mounting circular block and a mating circular block fixedly connected to one side of the mounting circular block, and a mating sliding groove is provided on the outer side of the mating circular block.

[0014] As a preferred solution of the edge-entry backlight module and liquid crystal display screen described in the present invention, the active component includes a pressure block and a second limiting slider fixedly connected to both ends of the pressure block, one side of the pressure block is connected to a second spring, and one side of the pressure block is fixedly connected to a transmission rack.

[0015] As a preferred solution of the edge-entry backlight module and liquid crystal display screen described in the present invention, the clamping assembly includes a clamping plate and a matching arc plate fixedly connected to one side of the clamping plate, and multiple groups of matching arc plates are symmetrically arranged on the clamping plate.

[0016] As a preferred solution of the edge-entry backlight module and liquid crystal display screen described in the present invention, wherein: a connecting ball is installed on the matching arc plate, and the connecting ball slides within the matching slide groove, and the number of matching arc plates corresponds to the number of matching slide grooves.

[0017] As a preferred solution of the liquid crystal display screen described in the present invention, it includes: a main unit, the main unit includes an outer frame and a liquid crystal screen fixedly connected to one side of the outer frame, and the other side of the outer frame is connected to a mounting cover plate, a backlight assembly is installed inside the outer frame, the backlight assembly includes a mounting frame and a reflective sheet installed on the mounting frame, a light guide plate is arranged on one side of the reflective sheet, and a diffusion sheet is arranged on the other side of the light guide plate, a first prism film is installed on one end of the diffusion sheet, and the other side of the first prism film is connected to a second prism film, and a protective film is arranged on one side of the second prism film.

[0018] The beneficial effects of the present invention are as follows: through the cooperation of the installation unit and the transmission unit, the light source unit can be quickly installed and disassembled. When in use, the installation bar is installed to a fixed position on the outer frame, and the active component is pushed to move by the installation bar, and then the transmission of the transmission component is cooperated to move the intermediate matching component, and then the positioning component is driven to move, so that the positioning component installs and fixes the position of the installation bar, thereby completing the fixed installation of the installation bar; when disassembly is required, the position of the disassembly component is moved by rotating the disassembly component, and the position restriction on the intermediate matching component is loosened, so that the installation bar can be directly removed, so that the device can quickly install and disassemble the light source unit, saving time for maintenance and replacement.

[0019] By setting up the mounting bracket, the backlight assembly as a whole can be quickly installed and disassembled, so that the backlight assembly and the light source unit can be separated from each other. However, when necessary, the two can be separately inspected and replaced, which is convenient for operation. At the same time, after the backlight assembly is installed, the transmission assembly is driven to move when the light source unit is installed, and then the clamping assembly is moved, so that the clamping assembly limits the position of the backlight assembly, thereby ensuring the stability of the installation of the backlight assembly and preventing it from loosening and affecting the use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the present invention.

[0022] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0023] Figure 3 It is a schematic diagram of the connection structure between the installation unit and the transmission unit in the present invention.

[0024] Figure 4 It is an exploded view of the intermediate matching component, the positioning component and the transmission component in the present invention.

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the disassembly component and the intermediate matching component in the present invention.

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the intermediate matching component and the positioning component in the present invention.

[0027] Figure 7 It is a schematic diagram of the structure of the active component in the present invention.

[0028] Figure 8 It is a schematic diagram of the connection structure between the matching base member and the clamping assembly in the present invention.

[0029] Fig. 9 It is a schematic diagram of the structure of the backlight assembly in the present invention.

[0030] In the figure: 10, installation unit; 11, disassembly assembly; 111, disassembly straight plate; 112, disassembly baffle; 113, disassembly knob; 12, intermediate matching assembly; 121, matching frame; 122, matching plate; 1221, matching shift plate; 1222, first matching groove; 1223, second matching groove; 123, connecting seat; 13, positioning assembly; 131, positioning slider; 132, positioning block; 133, first limit slider; 134, first spring; 135, matching rod; 20, transmission unit; 21, transmission assembly; 211, transmission shaft; 212, transmission circular plate; 213, transmission gear; 214, matching base member; 214 1. Install the round block; 2142. Match the round block; 2143. Match the slide; 22. Rotate the connecting rod; 23. Active component; 231. Pressure block; 232. Second limit slider; 233. Second spring; 234. Transmission rack; 24. Clamping component; 241. Clamping plate; 242. Matching arc plate; 30. Light source unit; 31. Install the strip; 32. Lamp; 40. Main unit; 41. Outer frame; 42. LCD screen; 43. Install the cover; 44. Backlight component; 441. Mounting frame; 442. Reflector; 443. Light guide plate; 444. Diffuser; 445. First prism film; 446. Second prism film; 447. Protective film. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Example

[0034] Reference Figures 1 to 9 , is an embodiment of the present invention, providing an edge-type backlight module, such as Figure 2 to Figure 6 As shown, it includes an installation unit 10, a transmission unit 20, and a light source unit 30. The installation unit 10 includes a disassembly component 11 and an intermediate matching component 12 connected to one side of the disassembly component 11, and the other side of the intermediate matching component 12 is matched with a positioning component 13. The disassembly component 11 includes a disassembly straight plate 111 and a disassembly baffle 112 fixedly connected to the disassembly straight plate 111, and the disassembly baffle 112 is evenly spaced on the disassembly straight plate 111. A disassembly knob 113 is connected to one end of the disassembly straight plate 111, wherein the disassembly straight plate 111 is on the outer frame 41. The disassembly baffle 112 is fixedly connected to one side of the disassembly straight plate 111, the disassembly knob 113 is limitedly installed inside the outer frame 41, and the disassembly knob 113 is rotated inside the outer frame 41. At the same time, the disassembly straight plate 111 and the disassembly knob 113 are connected by threads, and the rotation of the disassembly knob 113 can drive the disassembly straight plate 111 and the disassembly baffle 112 to move inside the outer frame 41; through the setting of the disassembly component 11, the movement of the intermediate matching component 12 can be controlled to play the role of disassembling the light source unit 30.

[0035] The intermediate mating component 12 includes a mating frame 121 and a mating plate 122 installed inside the mating frame 121, one end of the mating frame 121 is fixedly connected to a connecting seat 123, wherein the mating plate 122 is limitedly moved inside the mating frame 121, and the connecting seat 123 is fixedly connected to one end of the mating frame 121; the mating plate 122 includes a mating moving plate 1221 and a first mating groove 1222 opened on one side of the mating moving plate 1221, and a second mating groove 1223 is opened on the other side of the mating moving plate 1221, wherein the mating moving plate 1221 is limitedly moved inside the mating frame 121, the first mating groove 1222 is opened on one side of the mating moving plate 1221, and cooperates with the disassembly baffle 112, the second mating groove 1223 is opened on the other side of the mating moving plate 1221, and one side thereof is inclined. The setting of the intermediate mating component 12 can play a transmission role in the connection between the disassembly component 11 and the positioning component 13, so as to facilitate the control of the movement of the positioning component 13.

[0036] The positioning assembly 13 includes a positioning slider 131 and a positioning block 132 fixedly connected to the positioning slider 131, and the two ends of the positioning slider 131 are fixedly connected with a first limiting slider 133, one side of the positioning slider 131 is connected with a first spring 134, and one side of the positioning slider 131 is fixedly connected with a matching rod 135, wherein the positioning slider 131 can be limited and moved inside the outer frame 41, the positioning block 132 is fixedly connected to the positioning slider 131, and both sides of the positioning block 132 are inclined, the first limiting slider 133 is fixedly connected to the two ends of the positioning slider 131, and is used to limit the movement of the positioning slider 131, and the first spring One end of 134 is fixedly connected to the positioning slider 131, and the other end is fixedly connected to the outer frame 41. The first spring 134 is used to reset the position of the positioning slider 131. The matching rod 135 is fixedly connected to the positioning slider 131. One end of the matching rod 135 is matched inside the second matching groove 1223. When the matching frame 121 drives the matching shift plate 1221 to move, the matching between the matching rod 135 and the second matching groove 1223 can drive the positioning slider 131 to move. The positioning component 13 installs and disassembles the light source unit 30. With the use of the disassembly component 11 and the intermediate matching component 12, the light source unit 30 can be quickly disassembled and assembled.

[0037] like Figure 2 to Figure 4 and Figure 7-8 As shown, the transmission unit 20 includes a transmission component 21 and a rotating connecting rod 22 rotatably connected to one side of the transmission component 21, and the other side of the transmission component 21 is cooperatively connected with an active component 23, and the active component 23 performs limited movement inside the outer frame 41, and one end of the transmission component 21 is cooperatively connected with a clamping component 24, wherein one end of the transmission component 21 is rotatably connected to the connecting seat 123, and the other end is rotatably connected to one side of the transmission component 21, and the transmission component 21 and the active component 23 and the clamping component 24 are all installed in a cooperative connection manner. Through the setting of the transmission component 21, the disassembly component 11, the positioning component 13, the active component 23 and the clamping component 24 are linked together, and through the setting of the transmission unit 20, the installation unit 10 and the light source unit 30 are connected together, so that a linkage is generated between the installation unit 10, the transmission unit 20 and the light source unit 30.

[0038] The transmission assembly 21 includes a transmission shaft 211 and a transmission circular plate 212 fixedly connected to one side of the transmission shaft 211. The transmission shaft 211 rotates inside the outer frame 41. A base is installed on the transmission circular plate 212 and is rotatably connected to the rotating connecting rod 22. A transmission gear 213 is fixedly connected to the other side of the transmission shaft 211. One end of the transmission shaft 211 is fixedly connected to a matching base member 214. The transmission assembly 21 is connected to the intermediate matching assembly 12 by the setting of the transmission circular plate 212 and the connection of the rotating connecting rod 22. The transmission assembly 21 is connected to the active assembly 23 by the connection between the transmission gear 213 and the active assembly 23. The connection between the mating base member 214 and the clamping assembly 24 connects the transmission assembly 21 and the clamping assembly 24 together; the mating base member 214 includes a mounting block 2141 and a mating block 2142 fixedly connected to one side of the mounting block 2141, and a mating groove 2143 is provided on the outer side of the mating block 2142, wherein the mounting block 2141 and the transmission shaft 211 and the mounting block 2141 and the mating block 2142 are connected in a fixed manner, the mating groove 2143 is provided on the outer surface of the mating block 2142, and is centrally symmetrically arranged on the mating block 2142, and the transmission assembly 21 is used as the main linkage component to transmit the linkage effect.

[0039] The active component 23 includes a pressure block 231 and a second limit slider 232 fixedly connected to both ends of the pressure block 231. The pressure block 231 moves inside the outer frame 41. A second spring 233 is connected to one side of the pressure block 231. The second spring 233 is arranged at both ends of the pressure block 231. One end of the second spring 233 is fixedly connected to the pressure block 231, and the other end is fixedly connected to the outer frame 41. The second spring 233 is used to reset the position of the pressure block 231. A transmission rack 234 is fixedly connected to one side of the pressure block 231. The meshing connection between the transmission rack 234 and the transmission gear 213 is used to link the transmission component 21 and the active component 23. The movement of the active component 23 can drive the transmission component 21 to rotate. The clamping component 24 includes a clamping plate 241 and The matching arc plate 242 is fixedly connected to one side of the clamping plate 241, and the clamping plate 241 moves inside the outer frame 41. The matching arc plate 242 is fixedly connected to the clamping plate 241. The connecting ball installed on the matching arc plate 242 is used to make the matching arc plate 242 slide within the matching slide groove 2143. The number of matching arc plates 242 corresponds to the number of matching slide grooves 2143. Due to the arc-shaped setting of the matching slide grooves 2143, through the connection between the matching slide grooves 2143 and the matching arc plate 242, the rotation of the matching base member 214 will drive the clamping assembly 24 to move, and the active assembly 23 contacts the light source unit 30. The movement of the light source unit 30 drives the transmission assembly 21 to rotate. At the same time, the transmission assembly 21 can drive the clamping assembly 24 to move, and the backlight assembly 44 is limited and fixed.

[0040] like Figure 1-2 and Fig. 9 As shown, the light source unit 30 includes a mounting bar 31 and a lamp 32 installed inside the mounting bar 31, wherein the lamp 32 is fixedly installed inside the mounting bar 31, and a snap-in groove is opened on one side of the mounting bar 31, so that it can be snap-connected with the positioning block 132 to limit and fix the mounting bar 31, and at the same time, an inclined surface with the same inclination angle as the positioning block 132 is provided at the outer corner position of the snap-in groove on the mounting bar 31, so that the positioning component 13 can be pushed to move when the mounting bar 31 is installed, and the light source unit 30 can be installed and disassembled separately, which is convenient for later maintenance and replacement.

[0041] A liquid crystal display screen includes a main unit 40, the main unit 40 includes an outer frame 41 and a liquid crystal screen 42 fixedly connected to one side of the outer frame 41, the liquid crystal screen 42 is fixedly installed on one side of the outer frame 41, and the other side of the outer frame 41 is connected to a mounting cover plate 43, the mounting cover plate 43 is mounted on the outer frame 41 by means of bolts, and a backlight assembly 44 is installed inside the outer frame 41; the backlight assembly 44 includes a mounting frame 441 and a reflective sheet 442 installed on the mounting frame 441, the mounting frame 441 moves inside the outer frame 41 for easy installation, and one side of the reflective sheet 442 is fixedly mounted on the outer frame 41. A light guide plate 443 is provided on one side, and a diffusion sheet 444 is provided on the other side of the light guide plate 443. A certain gap is left between the reflection sheet 442 and the light guide plate 443 and between the light guide plate 443 and the diffusion sheet 444 to prevent the light guide plate 443 from thermal expansion, deformation or rupture. A first prism film 445 is installed on one end of the diffusion sheet 444, and the other side of the first prism film 445 is connected to the second prism film 446. A protective film 447 is provided on one side of the second prism film 446. The first prism film 445, the second prism film 446 and the protective film 447 are fixedly connected to each other.

[0042] When in use, first install the backlight assembly 44 into the interior of the outer frame 41, and then install the mounting strip 31 on the outer frame 41. When installing the mounting strip 31, the mounting strip 31 will push the pressure block 231 to move, thereby driving the transmission rack 234 to move. Since the transmission rack 234 is meshed and connected with the transmission gear 213, the transmission shaft 211 rotates; the rotation of the transmission shaft 211 will drive the matching base member 214 and the transmission circular plate 212 to rotate synchronously. When the transmission circular plate 212 rotates, the rotation connection between the transmission circular plate 212 and the rotating connecting rod 22 and between the rotating connecting rod 22 and the connecting seat 123 is utilized to make the transmission circular plate 212 drive the matching frame 121 to move. Due to the matching connection between the matching rod 135 and the second matching groove 1223, the second matching groove 1223 pushes the matching rod 135 and then drives the positioning slider 131 to move, and finally makes the positioning block 132 engage with the mounting strip 31, and the mounting strip 3 1 is fixed in the position; at the same time, by cooperating with the arc plate 242 and the cooperating slide groove 2143, the clamping plate 241 is moved, and the position of the backlight assembly 44 is limited to prevent the position of the backlight assembly 44 from moving. Finally, the installation cover 43 is installed to complete the installation of the device; when it is necessary to disassemble, it is only necessary to turn the disassembly knob 113, and use the threaded connection between the disassembly knob 113 and the disassembly straight plate 111 to move the disassembly straight plate 111, thereby driving the disassembly baffle 112 to move, so that the disassembly baffle 112 releases the restriction on the cooperating moving plate 1221. At this time, the cooperating moving plate 1221 can be moved inside the cooperating frame 121. At this time, the installation bar 31 can be directly taken out. When the installation bar 31 is taken out, the positioning assembly 13 will be compressed and retracted, and will not limit the movement of the installation bar 31. After the installation bar 31 is disassembled, the positioning slider 131 and the pressure block 231 will return to their original positions under the action of the first spring 134 and the second spring 233 respectively.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An edge-type backlight module, characterized in that: include, The installation unit (10) comprises a disassembly component (11) and an intermediate matching component (12) connected to one side of the disassembly component (11), and the other side of the intermediate matching component (12) is matched with a positioning component (13), the disassembly component (11) comprises a disassembly straight plate (111) and a disassembly baffle (112) connected to the disassembly straight plate (111), and the disassembly baffle (112) is arranged at multiple locations on the disassembly straight plate (111) at equal intervals, and one end of the disassembly straight plate (111) is connected to a disassembly knob (113); A transmission unit (20), the transmission unit (20) comprising a transmission assembly (21) and a rotation connecting rod (22) rotatably connected to one side of the transmission assembly (21), and the other side of the transmission assembly (21) is cooperatively connected to an active assembly (23), and one end of the transmission assembly (21) is cooperatively connected to a clamping assembly (24); A light source unit (30) comprises a mounting bar (31) and a lamp (32) mounted inside the mounting bar (31).

2. The edge-lit backlight module according to claim 1, characterized in that: The intermediate matching component (12) comprises a matching frame (121) and a matching plate (122) installed inside the matching frame (121); one end of the matching frame (121) is fixedly connected to a connecting seat (123); The matching plate (122) comprises a matching shifting plate (1221) and a first matching groove (1222) provided on one side of the matching shifting plate (1221), and a second matching groove (1223) is provided on the other side of the matching shifting plate (1221).

3. The edge-lit backlight module according to claim 2, characterized in that: The positioning assembly (13) comprises a positioning slider (131) and a positioning block (132) fixedly connected to the positioning slider (131), and both ends of the positioning slider (131) are fixedly connected to a first limiting slider (133), one side of the positioning slider (131) is connected to a first spring (134), and one side of the positioning slider (131) is fixedly connected to a matching rod (135).

4. The edge-lit backlight module according to claim 3, characterized in that: One side edge of the interior of the second matching groove (1223) is inclined so that the matching rod (135) is matched and connected inside the second matching groove (1223), and the disassembly baffle (112) is matched and connected inside the first matching groove (1222).

5. The edge-lit backlight module according to claim 4, characterized in that: The transmission assembly (21) comprises a transmission shaft (211) and a transmission circular plate (212) fixedly connected to one side of the transmission shaft (211), and a transmission gear (213) is fixedly connected to the other side of the transmission shaft (211), and one end of the transmission shaft (211) is fixedly connected to a matching base member (214).

6. The edge-lit backlight module according to claim 5, characterized in that: The mating base member (214) comprises a mounting round block (2141) and a mating round block (2142) fixedly connected to one side of the mounting round block (2141), and a mating sliding groove (2143) is provided on the outer side of the mating round block (2142).

7. The edge-lit backlight module according to claim 6, characterized in that: The active component (23) comprises a pressure block (231) and a second limiting slider (232) fixedly connected to both ends of the pressure block (231); one side of the pressure block (231) is connected to a second spring (233); and one side of the pressure block (231) is fixedly connected to a transmission rack (234).

8. The edge-lit backlight module according to claim 7, characterized in that: The clamping assembly (24) comprises a clamping plate (241) and a matching arc plate (242) fixedly connected to one side of the clamping plate (241), and a plurality of matching arc plates (242) are symmetrically arranged on the clamping plate (241).

9. The edge-lit backlight module according to claim 8, characterized in that: A connecting ball is installed on the matching arc plate (242), and the connecting ball performs limited sliding inside the matching slide groove (2143), and the number of the matching arc plates (242) corresponds to the number of the matching slide grooves (2143).

10. A liquid crystal display screen, characterized in that: The invention comprises a main body unit (40), wherein the main body unit (40) comprises an outer frame (41) and a liquid crystal screen (42) fixedly connected to one side of the outer frame (41), and the other side of the outer frame (41) is connected to a mounting cover plate (43), a backlight assembly (44) is mounted inside the outer frame (41), and the backlight assembly (44) comprises a mounting frame (441) and a reflective sheet (442) mounted on the mounting frame (441), a light guide plate (443) is arranged on one side of the reflective sheet (442), and a diffusion sheet (444) is arranged on the other side of the light guide plate (443), a first prism film (445) is mounted on one end of the diffusion sheet (444), and the other side of the first prism film (445) is connected to a second prism film (446), and a protective film (447) is arranged on one side of the second prism film (446).

Images