Backlight module for preventing wire slippage
By increasing the nut height and setting multiple M3 threads, the problem of slip wires in existing backlight modules during client assembly is solved, achieving a more stable fixing effect and reducing the potential for slip wires.
Patent Information
- Application Number
- CN202420604207.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-03-26
AI Technical Summary
The existing backlight module with rear iron frame is prone to slip wire problems when assembling the client, resulting in insufficient fixed position and affecting the stability of the backlight module.
By increasing the height of the nut and setting multiple M3 threads, the number of threads during assembly with customers can be increased, so that during subsequent assembly of customers, fixing screws can be extended into the nut to fix the backlight module body, and the fixing position between the fixing screws and the backlight module body becomes longer, thereby reducing the potential for slippers.
Without affecting the main structure of the backlight module and the client matching structure, the potential risks of the slip wire are significantly reduced and the stability of the backlight module is improved.
Smart Images
Figure CN222748820U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of backlight modules, in particular to a backlight module capable of preventing thread slippage. Background Art
[0002] Liquid crystal display devices are widely used in various information, communication and consumer electronic products. The liquid crystal display module is mainly composed of a backlight module and a liquid crystal display screen. The backlight module includes a frame, a light guide plate, an optical film, a reflective sheet, a shading sheet and an LED light source located on the side of the light guide plate. When working, the light enters from the side of the light guide plate, is scattered by the light guide plate and reflected by the reflective sheet, and then is emitted from the light emitting surface of the light guide plate. Then, the light passes through the optical film and is emitted from the visible area of the shading sheet to the liquid crystal display screen to provide light for the liquid crystal display screen.
[0003] The existing backlight module with a rear iron frame usually has several convex bumps designed on the rear iron frame, and tapping threads are made on the convex bumps to be used for fixing during client assembly. Since the thickness of the convex bumps on the rear iron frame is small, the number of tapping threads is limited by the thickness of the convex bumps and is set relatively small. Therefore, the fixing position is not enough when fixing the client, and the thread slippage problem often occurs, thus affecting the stability of the backlight module. Utility Model Content
[0004] The utility model aims to overcome the shortcomings of the prior art and provide a backlight module that can prevent wire slippage.
[0005] The purpose of this utility model is achieved through the following technical solutions:
[0006] A backlight module for preventing thread slippage comprises: a backlight module body, the backlight module body comprises a rubber frame and a rear iron frame arranged on one side of the rubber frame, the four sides of the rubber frame are located at the periphery of the rear iron frame, a boss is protruding from the back of the rear iron frame, a nut is passed through the boss, the nut is arranged along the height direction of the boss, and an M3 thread for fixing the client is arranged along the length direction inside the nut.
[0007] In one embodiment, the thickness of the rear iron frame is 0.8 mm.
[0008] In one embodiment, the height of the nut is 4.1 mm.
[0009] In one embodiment, a through hole is formed in the boss, the through hole is opened along the height direction of the boss, the depth of the through hole is the same as the height of the boss, and the nut is fixed in the through hole.
[0010] In one embodiment, there are multiple M3 threads in the nut, and the multiple M3 threads are arranged at equal distances along the height direction of the nut.
[0011] In one embodiment, the pitch of two adjacent M3 threads is 0.5 mm.
[0012] In one embodiment, there are four bosses on the back side of the rear iron frame, and the four bosses are respectively located near the four corners of the rear iron frame.
[0013] In one embodiment, a light guide plate is disposed in the rear iron frame, the light guide plate is disposed along the length direction of the rear iron frame, and the light guide plate is limitedly located between the rubber frame and the rear iron frame.
[0014] In one embodiment, the light guide plate includes a light incident surface and a light emitting surface, a reflective sheet is disposed on the light incident surface of the light guide plate, and an optical film is disposed on the light emitting surface of the light guide plate.
[0015] In one embodiment, the light incident surface of the light guide plate is provided with an LED lamp for providing light.
[0016] Compared with the prior art, the utility model has at least the following advantages:
[0017] The utility model discloses a backlight module for preventing thread slippage, by increasing the height of the nut to increase the number of threads when assembled with the customer, so that during subsequent customer assembly, a fixing screw can be inserted into the nut to fix the backlight module body. The fixing position of the fixing screw and the backlight module body is lengthened, which can greatly reduce the risk of thread slippage without affecting the backlight module body structure and the client matching structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.
[0019] Figure 1 A schematic diagram of the structure of a backlight module for preventing wire slipping provided by the utility model;
[0020] Figure 2 A schematic cross-sectional structure diagram of a backlight module for preventing wire slipping provided by the utility model;
[0021] Figure 3 for Figure 2 Enlarged schematic diagram of part A.
[0022] Description of the drawings: 10, backlight module body; 20, rubber frame; 30, rear iron frame; 31, boss; 311, perforation; 40, light guide plate; 50, reflective sheet; 60, optical film; 70, LED lamp; 80, nut; 81, M3 thread. DETAILED DESCRIPTION
[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.
[0024] A backlight module for preventing wire slippage, referring to Figure 1 , including a backlight module body 10, the backlight module body 10 includes a plastic frame 20 and a rear iron frame 30 arranged on one side of the plastic frame 20, the plastic frame 20 is hollow, and the four sides of the plastic frame 20 are located at the periphery of the rear iron frame 30, and the plastic frame 20 and the rear iron frame 30 cooperate with each other.
[0025] Reference Figure 2 and Figure 3 The rear iron frame 30 contains a light guide plate 40, which is arranged along the length direction of the rear iron frame 30. The rear iron frame 30 is located on one side of the light guide plate 40 and is used to fix and limit the position of the light guide plate 40. The light guide plate 40 is limited in the plastic frame 20, and the light guide plate 40 is limited between the plastic frame 20 and the rear iron frame 30. The light guide plate 40 includes a light incident surface and a light emitting surface. A reflective sheet 50 is arranged on the light incident surface of the light guide plate 40. The reflective sheet 50 is arranged along the length direction of the light guide plate 40 and is attached to one side of the light guide plate 40.
[0026] Reference Figure 2 and Figure 3 An optical film 60 is provided on the light emitting surface of the light guide plate 40. The optical film 60 is located on the side of the light guide plate 40 away from the reflective sheet 50. The optical film 60 includes a diffusion film, an upper brightness enhancement sheet and a lower brightness enhancement sheet. The diffusion film, the upper brightness enhancement sheet and the lower brightness enhancement sheet are sequentially adhered and sequentially adhered to the light emitting surface of the light guide plate 40.
[0027] Reference Figure 2 and Figure 3 The light incident surface of the light guide plate 40 is provided with an LED lamp 70 for providing light, and the LED lamp 70 is located on the inner side of the rear iron frame 30, and the LED lamp 70 is arranged directly opposite to the light incident surface below the light guide plate 40. The light emitted by the LED lamp 70 is reflected by the reflective sheet 50 and the light guide plate 40, and is emitted into the display screen from the optical film 60 to provide light for the display screen.
[0028] Reference Figure 2 and Figure 3A boss 31 is provided on the side of the rear iron frame 30 away from the light guide plate 40, that is, the back of the rear iron frame 30. The boss 31 protrudes from the back of the rear iron frame 30. The thickness of the rear iron frame 30 is 0.8 mm. A through hole 311 is provided on the boss 31. The through hole 311 is opened along the height direction of the boss 31. The depth of the through hole 311 is the same as the height of the boss 31.
[0029] Reference Figure 2 and Figure 3 A nut 80 is fixed in the through hole 311. The nut 80 is made of stainless steel. The nut 80 is arranged along the height direction of the boss 31 and is fixed in the through hole 311. The height of the nut 80 is 4.1 mm, and the nut 80 is a solid nut.
[0030] Further, refer to Figure 2 and Figure 3 , a plurality of M3 threads 81 are arranged in the nut 80, and the plurality of M3 threads 81 are arranged at equal distances along the height direction of the nut 80. The pitch of two adjacent M3 threads 81 is 0.5 mm, so that the number of threads in the entire nut 80 is greater than 8. By increasing the thickness of the nut 80, the number of threads during assembly with the customer is increased, so that during subsequent customer assembly, the fixing screws can be inserted into the nut 80 to fix the backlight module body 10, and the fixing position of the fixing screws and the backlight module body 10 becomes longer, which can greatly reduce the risk of thread slippage without affecting the structure of the backlight module body 10 and the matching structure of the client.
[0031] Further, refer to Figure 1 There are four bosses 31 on the back of the rear iron frame 30 , and the four bosses 31 are respectively located near the four corners of the rear iron frame 30 , and a nut 80 is arranged in each boss 31 .
[0032] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A backlight module for preventing wire slippage, characterized in that: include: A backlight module body (10), the backlight module body (10) comprising a plastic frame (20) and a rear iron frame (30) arranged on one side of the plastic frame (20), the four sides of the plastic frame (20) are located on the periphery of the rear iron frame (30), a boss (31) is protruding from the back of the rear iron frame (30), a nut (80) is inserted into the boss (31), the nut (80) is arranged along the height direction of the boss (31), and an M3 thread (81) for fixing the client is arranged in the length direction of the nut (80).
2. The backlight module for preventing wire slippage according to claim 1, characterized in that: The thickness of the rear iron frame (30) is 0.8 mm.
3. The backlight module for preventing wire slippage according to claim 2, characterized in that: The height of the nut (80) is 4.1 mm.
4. The backlight module for preventing wire slippage according to claim 3, characterized in that: The boss (31) is provided with a through hole (311), the through hole (311) is opened along the height direction of the boss (31), the depth of the through hole (311) is the same as the height of the boss (31), and the nut (80) is fixed in the through hole (311).
5. The backlight module for preventing wire slippage according to claim 4, characterized in that: There are a plurality of M3 threads (81) in the nut (80), and the plurality of M3 threads (81) are arranged at equal distances along the height direction of the nut (80).
6. The backlight module for preventing wire slippage according to claim 5, characterized in that: The pitch of two adjacent M3 threads (81) is 0.5 mm.
7. The backlight module for preventing wire slippage according to claim 6, characterized in that: There are four bosses (31) on the back side of the rear iron frame (30), and the four bosses (31) are respectively located near the four corners of the rear iron frame (30).
8. The backlight module for preventing wire slippage according to claim 1, characterized in that: A light guide plate (40) is disposed in the rear iron frame (30), and the light guide plate (40) is arranged along the length direction of the rear iron frame (30). The light guide plate (40) is located between the rubber frame (20) and the rear iron frame (30).
9. The backlight module for preventing wire slippage according to claim 8, characterized in that: The light guide plate (40) comprises a light incident surface and a light emitting surface; a reflective sheet (50) is provided on the light incident surface of the light guide plate (40); and an optical film (60) is provided on the light emitting surface of the light guide plate (40).
10. The backlight module for preventing wire slippage according to claim 9, characterized in that: The light incident surface of the light guide plate (40) is provided with an LED lamp (70) for providing light.