High-brightness backlight module

Abstract

The utility model discloses a high brightness backlight module which comprises a main frame, a backlight mechanism is arranged in the main frame, the backlight mechanism comprises a light source, a light guide plate and an optical mold piece, a groove matched with the optical mold piece is formed in the top face of the main frame, the optical mold piece is clamped in the groove in a matched mode, and a first limiting mechanism tightly attached to the optical mold piece is arranged on the main frame. A second limiting mechanism matched with the light guide plate is arranged in the main frame, a back plate is arranged below the main frame, a clamping groove extending into the main frame is formed in the top face of the back plate, and a reflector plate is clamped in the clamping groove in a sliding mode. Compared with the prior art, the LED lamp has the advantages that the detachable back plate is arranged, the clamping groove is formed in the back plate and used for fixing the reflector plate, and the reflector plate can reflect light rays, so that the light intensity is improved; and a plurality of limiting mechanisms are arranged in the frame body to limit the backlight mechanism, so that quick disassembly and maintenance are facilitated, and the influence of dust on the brightness is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight sources, in particular to a high-brightness backlight module. Background Art

[0002] Backlight is a light source located behind a liquid crystal display (LCD), and its luminous effect will directly affect the visual effect of the LCD module. However, there are some problems with traditional backlight modules.

[0003] First, traditional backlight modules usually use low-brightness light sources, resulting in insufficient overall brightness. This will make the display effect of the LCD module not clear and bright, affecting the user's viewing experience. Second, after long-term use, the backlight module is prone to brightness reduction or even damage due to dust and other factors. This is because the light source, light guide plate and other components of the backlight module will accumulate dust, affecting the propagation and reflection of light, resulting in reduced brightness.

[0004] In addition, the existing backlight module components are complex to assemble, making maintenance inconvenient. When a problem occurs with the backlight module, it requires professional maintenance, and the existing backlight module structure is complex, which increases the difficulty and time cost of maintenance.

[0005] Therefore, we need a high-brightness backlight module that is easy to maintain to solve the above problems. Utility Model Content

[0006] The technical problem to be solved by the utility model is that the brightness is insufficient and the maintenance is inconvenient, which leads to the reduction of brightness. The utility model provides a high-brightness backlight module which is easy to maintain.

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a high-brightness backlight module, including a main frame, a backlight mechanism is provided in the main frame, the backlight mechanism includes a light source, a light guide plate and an optical module, the top surface of the main frame is provided with a groove that matches the optical module, the optical module is matched and placed in the groove, the main frame is provided with a first limiting mechanism that is close to the optical module, the inner wall of the main frame is provided with a placement groove located below the optical module, the light source is arranged in the placement groove, the light guide plate is located in the main frame and is arranged close to the light source, the main frame is provided with a second limiting mechanism that matches the light guide plate, a back plate is provided below the main frame, the back plate is provided with a mounting plate that is close to the bottom surface of the main frame, the mounting plate is matched with bolts connected to the bottom surface of the main frame, the top surface of the back plate is provided with a card slot extending into the main frame, a reflective sheet is slidably placed in the card slot, and the reflective sheet is arranged close to the bottom surface of the light guide plate.

[0008] As an improvement, the placement grooves are symmetrically arranged in a group, the light sources are arranged in the placement grooves, and the light sources are symmetrically arranged on both sides of the light guide plate. The arrangement of a group of light sources improves the light intensity.

[0009] As an improvement, a main magnetic plate is provided on the inner wall of the placement slot, and a slave magnetic plate is provided on the side of the light source close to the main magnetic plate. The main magnetic plate and the slave magnetic plate are magnetically matched to facilitate rapid limited installation of the light source.

[0010] As an improvement, the optical module includes a group of diffusion sheets, and brightness enhancement sheets are provided between the diffusion sheets. Multiple groups of modules cooperate to improve the brightness intensity.

[0011] As an improvement, the first limiting mechanism includes a plurality of fixing slots located at the corners of the top surface of the main frame, a telescopic column is provided in the fixing slot, the top end of the telescopic column extends to the outside of the fixing slot and is connected to an extension rod, the bottom surface of the extension rod is provided with a limiting block close to the top surface of the optical module, and a reset spring located around the telescopic column is connected between the fixing slot and the extension rod, which facilitates rapid limiting and fixing of the optical module.

[0012] As an improvement, the top surface of the main frame is provided with a storage groove that matches the extension rod. The setting of the storage groove can store the extension rod, reducing the volume of the device, thereby facilitating the installation and use between the device and the display screen.

[0013] As an improvement, the second limiting mechanism is symmetrically arranged in a group, and the second limiting mechanism includes an elastic plate hinged to the inner wall of the main frame. The elastic plate is arranged close to the bottom surface of the light guide plate, and the inner wall of the main frame is evenly provided with multiple torsion springs connected to the elastic plate, which facilitates the rapid limiting installation of the light guide plate.

[0014] The advantages of the present invention over the prior art are: a detachable back panel is provided, a slot is provided on the back panel for fixing the reflective sheet, and the detachable design of the reflective sheet can reflect light, thereby increasing light intensity and improving energy efficiency;

[0015] A plurality of limiting mechanisms are provided in the frame to limit the backlight mechanism, thereby facilitating its quick disassembly and maintenance, reducing maintenance time, and reducing the impact of dust on brightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the first stereoscopic view of the high-brightness backlight module of the present invention.

[0017] Figure 2 This is a second stereoscopic view of the high-brightness backlight module of the present invention.

[0018] Figure 3 This is a first cross-sectional perspective view of the high-brightness backlight module of the present invention.

[0019] Figure 4 This is a second cross-sectional perspective view of the high-brightness backlight module of the present invention.

[0020] Figure 5This is a three-dimensional diagram of the main frame of the high-brightness backlight module of the utility model.

[0021] Figure 6 It is a three-dimensional diagram of the backlight mechanism of the high-brightness backlight module of the utility model.

[0022] Figure 7 yes Figure 3 Schematic diagram of the structure of part A.

[0023] Figure 8 yes Figure 4 Schematic diagram of the structure of part B.

[0024] Figure 9 yes Figure 5 Schematic diagram of the structure of part C.

[0025] As shown in the figure: 1. Main frame; 2. Backlight mechanism; 3. Light source; 4. Light guide plate; 5. Optical module; 6. Groove; 7. First limiting mechanism; 8. Placement slot; 9. Second limiting mechanism; 10. Back panel; 11. Mounting plate; 12. Card slot; 13. Reflector; 14. Main magnetic plate; 15. Slave magnetic plate; 16. Diffuser; 17. Brightness enhancement plate; 18. Fixing slot; 19. Telescopic column; 20. Extension rod; 21. Limit block; 22. Reset spring; 23. Storage slot; 24. Elastic plate; 25. Torsion spring. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] Combined with attachment Figure 1-8 As shown, a high-brightness backlight module includes a main frame 1, a backlight mechanism 2 is provided in the main frame 1, the backlight mechanism 2 includes a light source 3, a light guide plate 4 and an optical module 5, the optical module 5 includes a group of diffusers 16, a light-enhancing sheet 17 is provided between the diffusers 16, the top surface of the main frame 1 is provided with a groove 6 for matching the optical module 5, the optical module 5 is matched and placed in the groove 6, the inner wall of the main frame 1 is provided with a placement groove 8 located below the optical module 5, the light source 3 is arranged in the placement groove 8, the placement groove 8 is symmetrically arranged in a group, the light source 3 is arranged in the placement groove 8, the inner wall of the placement groove 8 is provided with a main magnetic plate 14, the light source 3 is provided with a slave magnetic plate 15 on the side close to the main magnetic plate 14, the main magnetic plate 14 and the slave magnetic plate 15 are matched with each other for magnetic attraction, the light source 3 is symmetrically arranged on both sides of the light guide plate 4, and the light guide plate 4 is located in the main frame 1 and is arranged close to the light source 3;

[0029] With the above structure, before the backlight mechanism 2 is used, the light source 3, the light guide plate 4, and the optical module 5 are installed in the main frame 1. The light source 3 is fixed in place by the cooperation of the main magnetic plate 14 and the slave magnetic plate 15. When the backlight mechanism 2 is used, the light source 3 works to generate light, which is transmitted through the light guide plate 4. The diffuser 16 and the brightness enhancement sheet 17 cooperate to achieve high-intensity illumination.

[0030] Example 2

[0031] Based on the first embodiment, combined with the Figure 9 As shown, the main frame 1 is provided with a first limiting mechanism 7 that is close to the optical module 5. The first limiting mechanism 7 includes a plurality of fixing grooves 18 located at the corners of the top surface of the main frame 1. A telescopic column 19 is provided in the fixing groove 18. The top of the telescopic column 19 extends to the outside of the fixing groove 18 and is connected with an extension rod 20. The bottom surface of the extension rod 20 is provided with a limiting block 21 close to the top surface of the optical module 5. A return spring 22 located around the telescopic column 19 is connected between the fixing groove 18 and the extension rod 20. The top surface of the main frame 1 is provided with a storage groove 23 that matches the extension rod 20. The setting of the storage groove 23 can accommodate the extension rod 20. The main frame 1 is provided with a matching A second limiting mechanism 9 for the light guide plate 4 is provided. The second limiting mechanism 9 is symmetrically arranged in one group. The second limiting mechanism 9 includes an elastic plate 24 hinged to the inner wall of the main frame 1. The elastic plate 24 is arranged close to the bottom surface of the light guide plate 4. The inner wall of the main frame 1 is evenly provided with a plurality of torsion springs 25 connected to the elastic plate 24. A back plate 10 is provided below the main frame 1. The back plate 10 is provided with a mounting plate 11 close to the bottom surface of the main frame 1. The mounting plate 11 is connected to the bottom surface of the main frame 1 with matching bolts. The top surface of the back plate 10 is provided with a card slot 12 extending into the main frame 1. A reflective sheet 13 is provided in the card slot 12 for sliding and placing. The reflective sheet 13 is arranged close to the bottom surface of the light guide plate 4.

[0032] With the above structure, before use, the elastic plate 24 is moved to rotate it until it is close to the inner wall of the main frame 1, and then the light guide plate 4 is placed from the bottom of the main frame 1 into the main frame 1, and the elastic plate 24 is released to make it close to the bottom surface of the light guide plate 4. The top surface of the light guide plate 4 is now close to the inner wall of the main frame 1, and the installation of the light guide plate 4 is completed. Then, the extension rod 20 is pulled away from the groove 6 under the cooperation of the telescopic column 19 and the return spring 22, and the optical module 5 is placed in the groove 6 in turn, and the extension rod 20 is released to make it enter under the action of the return spring 22. In the storage slot 23, the limit block 21 is now close to the top surface of the optical module 5, completing the installation operation of the optical module 5. Finally, the reflector 13 is placed in the card slot 12 for fixation, and the back panel 10 is placed close to the bottom surface of the main frame 1. Bolts are used to penetrate the mounting plate 11 and connect it to the bottom surface of the main frame 1. During the operation of the backlight module, the reflector 13 reflects light to increase intensity and reduce energy consumption. The reflector, light guide plate 4 and optical module 5 are regularly disassembled and inspected through the above structure to clean dust and ensure light intensity.

[0033] After that, the light source 3 is fixed in the placement groove 8 by the cooperation of the main magnetic plate 14 and the slave magnetic plate 15, and the elastic plate 24 is moved to rotate it until it is close to the inner wall of the main frame 1. Then, the light guide plate 4 is placed in the main frame 1 from the bottom of the main frame 1, and the elastic plate 24 is released to make it close to the bottom surface of the light guide plate 4. The top surface of the light guide plate 4 is now close to the inner wall of the main frame 1, and the installation of the light guide plate 4 is completed. Then, the extension rod 20 is pulled away from the groove 6 under the cooperation of the telescopic column 19 and the return spring 22, and the optical module 5 is placed in the groove 6 in turn, and the extension rod 20 is released to make it enter the storage groove 23 under the action of the return spring 22. At this time, the limit block 21 is close to the top surface of the optical module 5, and the installation operation of the optical module 5 is completed. Finally, the reflective sheet 13 is placed in the card slot 12 for fixation, and the back panel 10 is placed close to the bottom surface of the main frame 1, and the bolts are used to penetrate the mounting plate 11 and bolted to the bottom surface of the main frame 1 to complete the assembly operation of the backlight module.

[0034] When the backlight mechanism 2 is in use, the light source 3 works to generate light, the light is transmitted through the light guide plate 4, the diffuser 16 and the light-enhancing plate 17 cooperate to achieve high-intensity irradiation, and the reflector 13 reflects the light to increase the intensity and reduce energy consumption; the reflector, light guide plate 4 and optical module 5 are regularly disassembled and inspected through the above structure to clean dust and ensure light intensity.

[0035] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A high-brightness backlight module, comprising a main frame (1), wherein a backlight mechanism (2) is provided in the main frame (1), wherein the backlight mechanism (2) comprises a light source (3), a light guide plate (4) and an optical die (5), and characterized in that: The top surface of the main frame (1) is provided with a groove (6) for matching the optical module (5), the optical module (5) is matched and placed in the groove (6), the main frame (1) is provided with a first limiting mechanism (7) close to the optical module (5), the inner wall of the main frame (1) is provided with a placement groove (8) located below the optical module (5), the light source (3) is arranged in the placement groove (8), the light guide plate (4) is located in the main frame (1) and is arranged close to the light source (3), and the main frame (1) is provided with a In conjunction with the second limiting mechanism (9) of the light guide plate (4), a back plate (10) is provided below the main frame (1), a mounting plate (11) is provided on the back plate (10) and is in close contact with the bottom surface of the main frame (1), the mounting plate (11) is connected to the bottom surface of the main frame (1) by matching bolts, the top surface of the back plate (10) is provided with a card slot (12) extending into the main frame (1), a reflective sheet (13) is provided in the card slot (12) for sliding engagement, and the reflective sheet (13) is arranged close to the bottom surface of the light guide plate (4).

2. The high-brightness backlight module according to claim 1, wherein: The placement grooves (8) are symmetrically arranged in a group, the light sources (3) are arranged in the placement grooves (8), and the light sources (3) are symmetrically arranged on both sides of the light guide plate (4).

3. The high-brightness backlight module according to claim 2, wherein: A main magnetic attraction plate (14) is provided on the inner wall of the placement groove (8), and a secondary magnetic attraction plate (15) is provided on the side of the light source (3) close to the main magnetic attraction plate (14). The main magnetic attraction plate (14) and the secondary magnetic attraction plate (15) are matched with each other for magnetic attraction.

4. The high-brightness backlight module according to claim 1, wherein: The optical module (5) comprises a group of diffusion sheets (16), and brightness enhancement sheets (17) are provided between the diffusion sheets (16).

5. The high brightness backlight module according to claim 1, wherein: The first limiting mechanism (7) comprises a plurality of fixing slots (18) located at the corners of the top surface of the main frame (1), a telescopic column (19) is provided in the fixing slot (18), the top end of the telescopic column (19) extends to the outside of the fixing slot (18) and is connected to an extension rod (20), the bottom surface of the extension rod (20) is provided with a limiting block (21) close to the top surface of the optical module (5), and a return spring (22) located around the telescopic column (19) is connected between the fixing slot (18) and the extension rod (20).

6. The high-brightness backlight module according to claim 5, wherein: The top surface of the main frame (1) is provided with a receiving groove (23) that matches the extension rod (20).

7. The high-brightness backlight module according to claim 1, wherein: The second limiting mechanism (9) is symmetrically arranged in a group. The second limiting mechanism (9) includes an elastic plate (24) hinged to the inner wall of the main frame (1). The elastic plate (24) is arranged in close contact with the bottom surface of the light guide plate (4). The inner wall of the main frame (1) is evenly provided with a plurality of torsion springs (25) connected to the elastic plate (24).

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