Backlight module easy to disassemble

Abstract

The utility model discloses a backlight module easy to disassemble. The backlight module comprises shading glue, a light source assembly, a light ray processing assembly and a backlight plate. Adhesive layers are arranged on the two faces of the shading glue, the light source assembly and the light ray processing assembly are arranged between the backlight plate and the shading glue, light rays emitted by the light source assembly are processed through the light ray processing assembly, and the backlight plate and the shading glue are bonded in an attached mode. An inward-shrinking notch is formed in the position, bonded with the shading glue, of the backlight plate and used for disassembling the backlight module. When parts of the backlight module and the TFT liquid crystal main screen need to be replaced or maintained, a worker can disassemble the backlight module through the inwards-shrinking notch, an acting point is provided for initial disassembly, and then the backlight module and the TFT liquid crystal main screen are rapidly separated, so that the working efficiency of disassembling the backlight module by the worker is improved, and the backlight module and the TFT liquid crystal main screen cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the field of backlight, in particular to an easily detachable backlight module. Background Art

[0002] In the prior art, the backlight and the TFT LCD main screen are connected by double-sided adhesive tape. Due to service life or product problems, staff are required to replace or repair the backlight and the TFT LCD main screen, so the staff first need to disassemble the backlight and the TFT LCD main screen, but the backlight and the TFT LCD main screen are fully fitted together and difficult to start with. Forced disassembly may damage the backlight and the TFT LCD main screen, causing them to be scrapped. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an easily disassembled backlight module.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A backlight module that is easily disassembled comprises: a light shielding glue, a light source assembly, a light processing assembly and a backlight board; the light shielding glue is provided with adhesive layers on both sides, the light source assembly and the light processing assembly are arranged between the backlight board and the light shielding glue, the light emitted by the light source assembly is processed by the light processing assembly, the backlight board is bonded to the light shielding glue, and an inward-retracted notch is provided at the bonding position between the backlight board and the light shielding glue, and the inward-retracted notch is used for disassembling the backlight module.

[0006] In one embodiment, the inwardly contracted notch is a rectangular parallelepiped structure.

[0007] In one embodiment, the backlight plate is a rectangular parallelepiped structure, and the indented notch is arranged on a side of the backlight plate close to a right angle thereof.

[0008] In one embodiment, the number of the inwardly contracted notches is four, which are respectively arranged on four edges of the backlight panel.

[0009] In one embodiment, the length of the inward-retracted notch is greater than its width, and the length direction of the inward-retracted notch is parallel to the length direction of the side edge of the backlight panel.

[0010] In one embodiment, the adhesive layer is provided with an avoidance gap at the indented gap which is consistent with the indented gap.

[0011] In one of the embodiments, a cross section of the backlight plate along the thickness direction at the indented notch is an inclined surface.

[0012] In one of the embodiments, the backlight panel includes an iron frame and a plastic block, and the plastic block is wrapped around the iron frame.

[0013] In one embodiment, the light source assembly is a plurality of LED lamps, and the LED lamps are arranged on the backlight panel.

[0014] In one of the embodiments, an FPC is further included. The FPC is arranged between the light-shielding glue and the light source assembly, and the light source assembly is electrically connected to the FPC.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] The easily disassembled backlight module of the utility model is provided with a shading glue, a light source component, a light processing component and a backlight board. The light source component and the light processing component are arranged between the backlight board and the shading glue. The light emitted by the light source component is processed by the light processing component. After the shading glue is bonded to the backlight board, the other side is bonded to the external TFT liquid crystal main screen. The backlight board is provided with a retracted notch at the bonding position with the shading glue. When the backlight and the TFT liquid crystal main screen need to replace parts or be repaired, the staff can disassemble the backlight module through the retracted notch to provide a fulcrum for the initial disassembly, and then the backlight and the TFT liquid crystal main screen can be quickly separated, so as to improve the work efficiency of the staff in disassembling the backlight module without damaging the backlight and the TFT liquid crystal main screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 This is a schematic structural diagram of an easily detachable backlight module in one embodiment of the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of a local enlarged structure;

[0020] Figure 3 It is another structural schematic diagram of an easily detachable backlight module in one embodiment of the utility model.

[0021] Reference numerals:

[0022] Light-shielding glue 10 , inward-retracted notch 11 , light source assembly 20 , light processing assembly 30 , backlight panel 40 , FPC 50 . 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] This application proposes an easily disassembled backlight module, please refer to Figure 1 , Figure 2 and Figure 3 , including: a light shielding glue 10, a light source assembly 20, a light processing assembly 30 and a backlight panel 40. The light shielding glue 10 is provided with adhesive layers on both sides, the light source assembly 20 and the light processing assembly 30 are arranged between the backlight panel 40 and the light shielding glue 10, the light emitted by the light source assembly 20 is processed by the light processing assembly 30, after the light shielding glue 10 is bonded to the backlight panel 40, the other side is bonded to the external TFT liquid crystal main screen, and the backlight panel 40 is provided with an indentation 11 at the bonding place with the light shielding glue 10. When the backlight and the TFT liquid crystal main screen need to be replaced or repaired, the staff can disassemble the backlight module through the indentation 11, providing a focus point for the initial disassembly, and then quickly separate the backlight and the TFT liquid crystal main screen, so as to improve the work efficiency of the staff in disassembling the backlight module, and will not damage the backlight and the TFT liquid crystal main screen. The adhesive layer is provided with an avoidance notch that is consistent with the indentation notch 11 at the indentation notch 11. Since the avoidance notch is non-sticky, the indentation notch 11 is prevented from being stained with dirt, thereby solving the hygiene problem at the indentation notch 11 to a certain extent. The user can simply clean the indentation notch 11 with a wet tissue. Preferably, while meeting the requirement of easy disassembly of the backlight module, the cross section of the backlight panel 40 at the indentation notch 11 along the thickness direction is an inclined surface, which gradually slopes downward from the middle of the backlight panel 40 to the edge of the backlight panel 40, thereby ensuring the support of the backlight panel 40 at the indentation notch 11 and preventing the backlight panel 40 from being abnormally damaged at the indentation notch 11 during use.

[0025] Please note that Figure 3 The light processing component 30 includes a light guide plate, a reflective sheet and a diffuser, which are arranged in the order of reflective sheet, light guide plate, diffuser, lower light enhancement and upper light enhancement. The reflective sheet abuts against the backlight plate 40. The light guide plate converts the point light source of the light source component 20 into a surface light source for uniform illumination. The upper light enhancement and the lower light enhancement gather the scattered light emitted by the light source component 20 toward the front direction to increase the brightness. The diffuser diffuses the light to make the light more evenly illuminated. The reflective sheet is used to enhance the brightness of the light.

[0026] Preferably, the indented notch 11 is a rectangular parallelepiped structure, the length of the indented notch 11 is greater than the width, the length is parallel to the side of the backlight plate 40, and the width is perpendicular to the side of the backlight plate 40, increasing the area of ​​the disassembly position of the backlight module for the staff or the manipulator to disassemble, thereby achieving rapid alignment of the indented notch 11, improving work efficiency, and facilitating the disassembly of the backlight module. In one embodiment, the backlight plate 40 is a rectangular parallelepiped structure, and the indented notch 11 is arranged on the side of the backlight plate 40 close to its right angle, rather than in the middle of the side of the backlight plate 40. If the indented notch 11 is arranged in the middle of the side of the backlight plate 40, when the staff or the manipulator disassembles the backlight module, the stress between the backlight module and the TFT liquid crystal main screen is large, making it difficult to disassemble. The indented notch 11 is arranged on the side of the backlight plate 40 close to its right angle, reducing the work intensity during disassembly. In another embodiment, there are four inward notches 11, which are respectively arranged on the four edges of the backlight panel 40. The four sides of the backlight module can be disassembled simultaneously, further improving work efficiency. The four edges are disassembled at the same time to reduce the stress during disassembly, thereby ensuring the functionality and appearance of the disassembled backlight module and TFT LCD main screen.

[0027] In one embodiment, see Figure 3 The backlight module also includes FPC50, which is arranged between the light-shielding glue 10 and the light guide plate. The light source assembly 20 is electrically connected to the FPC50 to control the lighting or shutting down of the light source assembly 20 so that the human eye can observe the image in time. In one embodiment, the backlight panel 40 includes an iron frame and a plastic block, and the plastic block is wrapped on the iron frame, and the plastic block can absorb a certain vibration, and can protect the backlight module to a certain extent when the backlight module falls. In addition, the light source assembly 20 is a plurality of LED lamps, and the LED lamps are arranged on the backlight panel 40. The arrangement of the LED lamps on the backlight panel 40 is four rows and four columns, so that the LED lamps are evenly irradiated, and the image forming effect is better.

[0028] 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. An easily detachable backlight module, characterized in that: include: Light shielding glue, light source assembly, light processing assembly and backlight panel; The light-shielding adhesive is provided with adhesive layers on both sides, the light source assembly and the light processing assembly are arranged between the backlight panel and the light-shielding adhesive, the light emitted by the light source assembly is processed by the light processing assembly, the backlight panel is bonded to the light-shielding adhesive, and an inward-retracted notch is provided at the bonding position between the backlight panel and the light-shielding adhesive, and the inward-retracted notch is used to disassemble the backlight module.

2. The easily detachable backlight module according to claim 1, characterized in that: The inwardly contracted notch is a rectangular parallelepiped structure.

3. The easily detachable backlight module according to claim 1, characterized in that: The backlight plate is a rectangular parallelepiped structure, and the indented notch is arranged on the side of the backlight plate close to its right angle.

4. The easily detachable backlight module according to claim 1, characterized in that: The number of the inwardly contracted notches is four, and they are respectively arranged on the four edges of the backlight plate.

5. The easily detachable backlight module according to claim 2, characterized in that: The length of the inwardly contracted notch is greater than its width, and the length direction of the inwardly contracted notch is parallel to the length direction of the side edge of the backlight plate.

6. The easily detachable backlight module according to claim 1, characterized in that: The adhesive layer is provided with an avoidance notch at the inward-retracted notch which is consistent with the inward-retracted notch.

7. The easily detachable backlight module according to claim 1, characterized in that: The cross section of the backlight plate along the thickness direction at the inwardly contracted notch is an inclined surface.

8. The easily detachable backlight module according to claim 1, characterized in that: The backlight panel comprises an iron frame and a plastic block, and the plastic block is wrapped on the iron frame.

9. The easily detachable backlight module according to claim 1, characterized in that: The light source assembly is a plurality of LED lamps, and the LED lamps are arranged on the backlight panel.

10. The easily detachable backlight module according to claim 1, characterized in that: It also includes an FPC, which is arranged between the light-shielding glue and the light source assembly, and the light source assembly is electrically connected to the FPC.

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