Fixing structure of backlight module light guide plate

Abstract

The utility model discloses a kind of fixing structure of backlight module light guide plate, belong to display screen technical field.Aiming at the problem of inconvenient installation or not firm in prior art, the fixing structure of backlight module light guide plate of the utility model, by light guide plate wedge shape part and the wedge-shaped plug-in structure of lamp groove inclined plane, substantially improve installation direction and initial positioning stability.Through the matching action of first limiting component and second limiting component, the limiting ability to light guide plate is significantly enhanced, effectively prevent displacement in use process.Elastic buckle and the clamping cooperation of pointed end protrusion or the ball-and-socket joint of ball head is inserted, further provide reliable mechanical locking, substantially improve anti-vibration and anti-impact performance.The design of hinged bottom plate makes the installation and replacement of LED lamp strip become extremely convenient, significantly improve maintenance efficiency.Lamp groove round angle processing effectively avoids operating damage in assembly process, improves security.

Description

Technical Field

[0001] This utility model belongs to the field of display screen technology, specifically relating to a fixing structure for a backlight module light guide plate. Background Technology

[0002] In the field of display technology, the fixing method of the light guide plate in the backlight module has a crucial impact on the uniformity and stability of the display effect. Currently, common fixing methods mostly employ adhesive bonding or simple mechanical clips. While these methods are structurally simple, they suffer from obvious problems such as insecure fixing, easy displacement, and low assembly precision. Especially under prolonged use or when affected by external factors such as vibration and temperature changes, the light guide plate is prone to loosening or displacement, leading to defects such as uneven brightness, dark areas, or light leakage on the screen, severely impacting display quality and user experience. Therefore, there is an urgent need for a light guide plate fixing solution that is structurally sound, easy to install, and reliably fixed to improve the overall performance and reliability of the backlight module.

[0003] This invention attempts to solve or at least alleviate such problems by providing a wedge-shaped plug-in fitting limiting component for synchronous use. Utility Model Content

[0004] In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a fixing structure for the light guide plate of a backlight module, which has the advantages of convenient and firm installation.

[0005] To achieve the above objectives, this utility model provides a fixing structure for a backlight module light guide plate, comprising:

[0006] A light guide plate, the light guide plate including a rectangular portion and a wedge-shaped portion disposed at the bottom of the rectangular portion;

[0007] The light trough is hollow, with an opening at the top, inclined surfaces on both inner walls, and an LED light strip at the bottom;

[0008] A first limiting component is provided on the side of the wedge-shaped part, and a second limiting component is provided on the inner side wall of the lamp groove. The first limiting component and the second limiting component match each other, and the wedge-shaped part can be inserted into the groove and fit against the inclined surface.

[0009] As a further improvement of this utility model, a base plate is provided at the bottom of the light trough, and the base plate is hinged to the edge of the light trough by a hinge.

[0010] As a further improvement of this utility model, the slope of the inclined plane on one side is 4-5 degrees.

[0011] As a further improvement of this utility model, elastic buckles are provided on both sides of the wedge-shaped part, and pointed protrusions are provided on both inner sidewalls of the lamp groove. The elastic buckles can lock the pointed protrusions.

[0012] As a further improvement of this utility model, a ball socket is provided on one side of the wedge-shaped part, and a ball head is provided on one inner side wall of the lamp groove, the ball head being able to be inserted into the ball socket.

[0013] As a further improvement of this utility model, the sides of the lamp trough are all rounded.

[0014] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0015] The fixing structure of the backlight module light guide plate of this utility model significantly improves installation guidance and initial positioning stability through the wedge-shaped insertion structure of the wedge-shaped part of the light guide plate and the inclined surface of the lamp groove. The matching action of the first and second limiting components significantly enhances the limiting ability of the light guide plate, effectively preventing displacement during use. The snap-fit ​​of the elastic buckle and the pointed protrusion, or the snap-fit ​​connection of the ball socket and the ball head, further provides reliable mechanical locking, significantly improving vibration and impact resistance. The hinged base plate design makes the installation and replacement of LED light strips extremely convenient, significantly improving maintenance efficiency. The rounded corner treatment of the lamp groove effectively avoids operational damage during assembly, improving safety. The overall structure works synergistically to ensure a firm fixation while significantly improving the assembly efficiency, maintenance convenience, and reliability of the backlight module. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the fixing structure of the light guide plate of the backlight module after installation according to the present invention;

[0017] Figure 2 This is a schematic diagram of the fixing structure of the light guide plate of the backlight module before installation according to this utility model;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the lamp trough of this utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the lamp trough of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the second embodiment of the present utility model.

[0022] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0023] Light guide plate 1; lamp groove 2; wedge-shaped part 11; rectangular part 12; first limiting component 13;

[0024] 14. Elastic buckle; 15. Ball socket; 21. Groove; 22. Hinge; 23. Base plate;

[0025] 24. Inclined surface; 25. LED light strip; 26. Second limiting component; 27. Tip protrusion; 28. Ball head. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0028] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0029] In the embodiments, by Figure 1-6 A fixing structure for a backlight module light guide plate is provided, comprising: a light guide plate 1, the light guide plate 1 including a rectangular portion 12 and a wedge-shaped portion 11 disposed at the bottom of the rectangular portion 12; and a lamp groove 2, the lamp groove 2 being hollow, having a slot 21 at the top, inclined surfaces 24 on both inner walls, and an LED light strip 25 at the bottom.

[0030] The wedge-shaped part 11 is provided with a first limiting component 13 on its side, and the inner wall of the lamp groove 2 is provided with a second limiting component 26. The first limiting component 13 and the second limiting component 26 are matched, and the wedge-shaped part 11 can be inserted into the groove 21 and fit against the inclined surface 24.

[0031] The wedge-shaped part 11 is inserted into the slot 21 to form a wedge-shaped connection with the inclined surface 24. The stability of the light guide plate after installation is further ensured by the cooperation between the limiting components (the light guide plate is not fully drawn, and a part of the light guide plate on the upper part of the rectangular part 1 is not drawn).

[0032] In a preferred embodiment of this utility model, a base plate 23 is provided at the bottom of the light trough 2, and the base plate 23 is hinged to the edge of the light trough 2 via a hinge 22. By hinged to the base plate 23, the LED light strip 25 can be inserted into the light trough 2 from the bottom, avoiding the inconvenience of inserting it from the top.

[0033] As a preferred embodiment of this invention, the slope of the inclined surface 24 on one side is 4-5 degrees. Again, at this slope, the insertion effect between the wedge-shaped portion 11 and the inclined surface 24 is optimal.

[0034] In a preferred embodiment of this invention, all sides of the light trough 2 are rounded. Rounding the corners helps prevent injury to operators during use. Example

[0035] Both sides of the wedge-shaped portion 11 are provided with elastic buckles 14, and both inner walls of the lamp groove 2 are provided with pointed protrusions 27. The elastic buckles 14 can lock the pointed protrusions 27. When the light guide plate 1 is inserted into the lamp groove 2 so that the wedge-shaped portion 11 and the inclined surface 24 are tightly fitted, the elastic buckles 14 can just hook the bottom of the pointed protrusions 27, thereby completely preventing the light guide plate 1 from loosening and falling off. When removing it, open the bottom plate 23, first take out the LED light strip 25, and then peel the elastic buckles 14 off the pointed protrusions 27 to remove the light guide plate 1. Example

[0036] The difference between this embodiment and Embodiment 1 is that a ball socket 15 is provided on one side of the wedge-shaped portion 11, and a ball head 28 is provided on one inner sidewall of the lamp groove 2. The ball head 28 can be inserted into the ball socket 15. Providing a matching ball socket 15 and ball head 28 on only one side can also provide a certain fixing effect, and it is easier to remove the light guide plate 1 compared to Embodiment 1.

[0037] When inserting, simply push the ball head 28 into the ball socket 15. When removing, drag the light guide plate 1 to separate the ball socket 15 from the ball head 28, and then you can remove the light guide plate 1.

[0038] Working Principle: The fixing structure of the backlight module light guide plate of this utility model achieves initial positioning by inserting the wedge-shaped part 11 at the bottom of the light guide plate 1 into the slot 21 at the top of the lamp groove 2, so that it fits tightly against the inclined surface 24 of the inner sidewall of the lamp groove 2. A first limiting component 13 is provided on the side of the wedge-shaped part 11, and a second limiting component 26 is provided on the inner sidewall of the lamp groove 2. The two match each other to further restrict the movement of the light guide plate 1. In a preferred embodiment, the fixing effect can be enhanced by the engagement of the elastic buckle 14 with the pointed protrusion 27, or the cooperation of the ball socket 15 with the ball head 28, to prevent the light guide plate 1 from loosening or shifting during use, thereby ensuring the uniformity of light and display stability of the backlight module.

[0039] In summary, this invention significantly improves installation guidance and initial positioning stability through the wedge-shaped insertion structure of the wedge-shaped portion of the light guide plate and the inclined surface of the lamp trough. The matching action of the first and second limiting components significantly enhances the limiting ability of the light guide plate, effectively preventing displacement during use. The snap-fit ​​of the elastic buckle and the pointed protrusion, or the snap-fit ​​connection of the ball socket and the ball head, further provides reliable mechanical locking, greatly improving vibration and impact resistance. The hinged base plate design makes the installation and replacement of the LED light strip extremely convenient, significantly improving maintenance efficiency. The rounded corners of the lamp trough effectively avoid operational damage during assembly, improving safety. The synergistic effect of the overall structure ensures secure fixing while significantly improving the assembly efficiency, maintenance convenience, and reliability of the backlight module.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing structure for a backlight module light guide plate, characterized in that, include: The light guide plate (1) includes a rectangular portion (12) and a wedge-shaped portion (11) disposed at the bottom of the rectangular portion (12). The light trough (2) is hollow, with a slot (21) at the top, inclined surfaces (24) on both inner walls, and an LED light strip (25) at the bottom. The wedge-shaped part (11) is provided with a first limiting component (13) on its side, and the inner wall of the lamp groove (2) is provided with a second limiting component (26). The first limiting component (13) and the second limiting component (26) match each other, and the wedge-shaped part (11) can be inserted into the groove (21) and fit against the inclined surface (24).

2. The fixing structure according to claim 1, characterized in that, The bottom of the lamp trough (2) is provided with a base plate (23), which is hinged to the edge of the lamp trough (2) by a hinge (22).

3. The fixing structure according to claim 1, characterized in that, The slope of the inclined plane (24) on one side is 4-5 degrees.

4. The fixing structure according to claim 3, characterized in that, Both sides of the wedge-shaped part (11) are provided with elastic buckles (14), and both inner walls of the lamp groove (2) are provided with pointed protrusions (27). The elastic buckles (14) can lock the pointed protrusions (27).

5. The fixing structure according to claim 3, characterized in that, A ball socket (15) is provided on one side of the wedge-shaped part (11), and a ball head (28) is provided on one inner side wall of the lamp groove (2). The ball head (28) can be inserted into the ball socket (15).

6. The fixing structure according to claim 1, characterized in that, The sides of the lamp trough (2) are all rounded.

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