Backlight module structure with TP fully attached

Abstract

The utility model provides a backlight module structure with TP fully attached, which comprises a back plate, an outer frame is fixedly arranged on the back plate, the outer frame is sleeved on the back plate and extends to liquid crystal glass on the front side of the outer frame, the front side of the outer frame protrudes out of the liquid crystal glass to form an attaching space, and the attaching space is arranged on the back plate. A silica gel strip is attached to the liquid crystal glass in the attaching space, the edge of the silica gel strip abuts against the outer frame, the front side of the liquid crystal glass is bonded with the TP body, the assembly process is simple, glue can be prevented from diffusing and polluting a backlight module, the product quality is guaranteed, the maintenance cost is reduced, and the production efficiency is improved. And the service life of the product is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display module technology, and in particular to a backlight module structure with full-layer TP. Background Technology

[0002] For existing LCD display modules with a backlight panel (TP), the LCD glass is typically bonded to the TP first. Then, the two sides of the LCD module with the backlight module are fixed to an L-shaped sheet metal bracket. Next, the mortise on the inner short side of the front frame with the TP is fixed to the sheet metal bracket. Since the TP's FFC leads need to be connected to the TP control board fixed on the back cover, sheet metal parts are used to fix the FFC leads to the back side of the backlight module's back panel, ensuring that their positions are precisely aligned with the TP control board. Finally, the back cover is fixed to the front frame, thus completing the assembly of the entire LCD display module with the TP.

[0003] The above assembly process is complicated. When installing the TP, single-sided foam is attached between the LCD glass and the TP to isolate them around the edges before bonding. This method has poor sealing performance and is prone to dust and moisture ingress, making after-sales service cumbersome and increasing the difficulty and cost of maintenance. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the above-mentioned technologies and provide a backlight module structure with full-layer TP.

[0005] Therefore, this utility model provides a backlight module structure with a fully laminated TP (Transparent Panel) backlight, including a back plate, an outer frame fixedly installed on the back plate, the outer frame being fitted onto the back plate and extending to the liquid crystal glass on its front side, the front side of the outer frame protruding from the liquid crystal glass to form a bonding space, a silicone strip being attached to the liquid crystal glass within the bonding space, the edge of the silicone strip abutting against the outer frame, and the front side of the liquid crystal glass being bonded to the TP body.

[0006] Preferably, a middle frame is snapped around the perimeter of the back panel, and the liquid crystal glass is mounted on the front side of the middle frame.

[0007] Preferably, a first locking block and a second locking block are fixedly installed on the bottom side of the back plate, a first locking groove and a second locking groove are opened on the bottom side of the middle frame, and a through groove is opened on the front side of the back plate that communicates with the first locking block and the second locking block. The bottom side of the middle frame is inserted into the through groove so that the first locking groove and the second locking groove are correspondingly engaged with the first locking block and the second locking block.

[0008] Preferably, a third and a fourth locking block are fixedly installed on the top side and the left and right sides of the back plate, and a third and a fourth locking slot are opened at the corresponding positions of the middle frame. The third and the fourth locking blocks are respectively adapted to and engaged with the third and the fourth locking slots.

[0009] Preferably, the first locking block includes a U-shaped piece and a connecting post, the U-shaped piece is fixedly installed on the back plate by the connecting post, and the first locking slot is engaged with the connecting post.

[0010] Preferably, both the second card block and the fourth card block are truncated pyramidal structures, and the width of the outer side is smaller than the width of the inner side.

[0011] Preferably, the outer frame is made of aluminum alloy, sheet metal, or plastic.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a backlight module structure with full-layer TP, which has the following beneficial effects.

[0013] (1) The back panel is snapped into the middle frame, and then the outer frame is fixedly installed on the back panel. The edge of the outer frame extends beyond the liquid crystal glass, thus forming a concave bonding space at the liquid crystal glass. A silicone strip is attached to the bonding space. Water-based adhesive is applied to the bonding frame formed by the silicone strip to bond the liquid crystal glass to the TP body. Under the action of the silicone strip, the water-based adhesive can be prevented from spreading and contaminating the backlight module, ensuring product quality, reducing maintenance costs, and extending product life.

[0014] (2) An outer frame was added to the back panel to enhance the strength and flatness of the backlight module. The installation method is simple and quick. At the same time, it can protect the frameless or narrow-bezel LCD glass from being damaged by the clamps during the bonding process.

[0015] (3) Multiple clips on the side of the back panel are adapted to and plug into multiple slots on the middle frame, which can quickly install the middle frame on the back panel. The assembly process is simple and greatly improves the installation efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the fully laminated TP backlight module in this embodiment;

[0017] Figure 2 This is a front view of the backlight module structure without the TP body in this embodiment;

[0018] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0019] Figure 4 This is a schematic diagram of the backplate structure in this embodiment;

[0020] Figure 5 yes Figure 4 A magnified view of part B in the middle section;

[0021] Figure 6 This is a schematic diagram of the structure of the middle frame in this embodiment;

[0022] Figure 7 yes Figure 6 A magnified view of part C in the middle;

[0023] Figure 8 yes Figure 6 A magnified view of part D in the middle;

[0024] Figure 9 This is a schematic diagram of the front structure of the backplate in this embodiment;

[0025] Figure 10 yes Figure 9 A magnified view of part E in the middle;

[0026] Figure 11 This is a left view of the back panel in this embodiment;

[0027] Figure 12 yes Figure 11 A cross-sectional view along the AA direction;

[0028] Figure 13 yes Figure 12 A magnified view of part F in the middle.

[0029] The markings in the diagram are: 1. Backplate; 2. Middle frame; 3. Outer frame; 4. Fitting space; 5. Silicone strip; 6. TP body; 7. First locking block; 71. U-shaped piece; 72. Connecting post; 8. Second locking block; 9. First slot; 10. Second slot; 11. Through groove; 12. Third locking block; 13. Fourth locking block; 14. Third slot; 15. Fourth slot; 16. Sheet metal cover plate; 17. FFC lead wire; 18. LCD glass. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0031] Example:

[0032] like Figures 1 to 13 As shown, this utility model provides a backlight module structure with a fully laminated TP (Polymer Module) backlight, including a back plate 1. An outer frame 3 is fixedly installed on the back plate 1. The outer frame 3 is fitted onto the back plate 1 and extends to the liquid crystal glass 18 on its front side. The front side of the outer frame 3 protrudes from the liquid crystal glass 18 to form a bonding space 4. Silicone strips 5 are attached to the four sides of the liquid crystal glass 18 in the bonding space 4. The edges of the silicone strips 5 abut against the outer frame 3 to seal the channel entering the backlight module and prevent water-based adhesive from overflowing and contaminating the backlight. The front side of the liquid crystal glass 18 is bonded to the TP body 6.

[0033] Furthermore, a middle frame 2 is snapped around the perimeter of the back panel 1, and the liquid crystal glass 18 is fixedly installed on the front side of the middle frame 2.

[0034] Furthermore, a first locking block 7 and a second locking block 8 are fixedly installed on the bottom side of the back plate 1, a first locking groove 9 and a second locking groove 10 are provided on the bottom side of the middle frame 2, and a through groove 11 is provided on the front side of the back plate 1, which communicates with the first locking block 7 and the second locking block 8. The bottom side of the middle frame 2 is inserted into the through groove 11, so that the first locking groove 9 and the second locking groove 10 are correspondingly engaged with the first locking block 7 and the second locking block 8.

[0035] A sheet metal cover plate 16 is fixedly installed at the bottom of the back plate 1. The sheet metal cover plate 16 is used to protect the FFC lead 17 and PCBA.

[0036] In order to meet the installation requirements of the sheet metal cover plate 16, the first slot 9 and the second slot 10 at the bottom of the middle frame 2 are inserted into the corresponding through slot 11 on the front side of the back plate 1. The first locking block 7 and the second locking block 8 are both positioned in relation to the through slot 11, so that when the first slot 9 and the second slot 10 of the middle frame 2 are inserted into the through slot 11, they are engaged with the corresponding first locking block 7 and the second locking block 8.

[0037] Furthermore, a third locking block 12 and a fourth locking block 13 are fixedly installed on the top side and the left and right sides of the back plate 1, and a third locking slot 14 and a fourth locking slot 15 are opened at the corresponding positions of the middle frame 2. The third locking block 12 and the fourth locking block 13 are respectively adapted to and locked into the third locking slot 14 and the fourth locking slot 15.

[0038] Furthermore, the first locking block 7 includes a U-shaped piece 71 and a connecting post 72. The U-shaped piece 71 is fixedly installed on the back plate 1 through the connecting post 72. The first locking groove 9 is engaged with the connecting post 72. The U-shaped piece 71 provides a good limiting effect on the first locking groove 9, preventing the middle frame 2 from detaching from the back plate 1.

[0039] Furthermore, both the second locking block 8 and the fourth locking block 13 are truncated pyramidal structures, and the width of the outer side is smaller than the width of the inner side. That is, the second locking block 8 and the fourth locking block 13 are narrower on the outside and wider on the inside. When they are engaged with the second locking slot 10 and the fourth locking slot 15, the slots can be engaged into the locking blocks along the inclined surface of the truncated pyramidal structure, which enhances the reliability and stability of the engagement between the two.

[0040] Furthermore, the outer frame 3 is made of aluminum alloy, sheet metal, or plastic, and it is an integral four-sided frame. In this embodiment, the outer frame 3 is preferably a sheet metal outer frame. Sheet metal material has high strength and rigidity, which can effectively protect the backlight module from external impacts and damage.

[0041] Furthermore, the four front sides of the outer frame 3 are bent outward vertically to form a bent portion, which is used to apply water-based adhesive and bond it to the TP body 6.

[0042] The working principle is as follows:

[0043] Install the sheet metal cover plate 16 on the back side of the back plate 1, then snap the back plate 1 to the middle frame 2, install the LCD glass 18 on the middle frame 2, then fit the sheet metal outer frame 3 onto the back plate 1, and fix its rear side to the back plate 1 with screws. Then attach silicone strips 5 to the four sides of the front side of the LCD glass 18, and finally apply water-based adhesive to the bonding frame formed by the silicone strips 5, so that the LCD glass 18 and the TP body 6 are fully bonded. The assembly process is simple and the sealing is strong.

[0044] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A full-laminated TP backlight module structure, comprising a back plate (1), characterized in that, The back plate (1) is fixedly installed with an outer frame (3), the outer frame (3) is sleeved on the back plate (1) and extends to the liquid crystal glass (18) at the front side thereof, the front side of the outer frame (3) protrudes the liquid crystal glass (18) to form a fitting space (4), the liquid crystal glass (18) in the fitting space (4) is attached with a silica gel strip (5), the edge of the silica gel strip (5) abuts on the outer frame (3), and the front side of the liquid crystal glass (18) is bonded with a TP main body (6).

2. The full-laminated TP backlight module structure of claim 1, wherein, The back plate (1) is fixedly installed with an outer frame (3), the outer frame (3) is sleeved on the back plate (1) and extends to the liquid crystal glass (18) at the front side thereof, the front side of the outer frame (3) protrudes the liquid crystal glass (18) to form a fitting space (4), the liquid crystal glass (18) in the fitting space (4) is attached with a silica gel strip (5), the edge of the silica gel strip (5) abuts on the outer frame (3), and the front side of the liquid crystal glass (18) is bonded with a TP main body (6).

3. The full-laminated TP backlight module structure of claim 2, wherein, The bottom side edge of the back plate (1) is fixedly installed with a first clamping block (7) and a second clamping block (8), the bottom side edge of the middle frame (2) is provided with a first clamping groove (9) and a second clamping groove (10), and the front side of the back plate (1) is provided with a through groove (11) in communication with the first clamping block (7) and the second clamping block (8); the middle frame (2) is inserted into the through groove (11), so that the first clamping groove (9) and the second clamping groove (10) are correspondingly clamped with the first clamping block (7) and the second clamping block (8).

4. The full-laminated TP backlight module structure of claim 3, wherein, The top side edge and the left and right side edges of the back plate (1) are fixedly installed with a third clamping block (12) and a fourth clamping block (13), and the corresponding positions of the middle frame (2) are provided with a third clamping groove (14) and a fourth clamping groove (15); the third clamping block (12) and the fourth clamping block (13) are respectively clamped with the third clamping groove (14) and the fourth clamping groove (15).

5. The full-laminated TP backlight module structure of claim 3, wherein, The first clamping block (7) comprises a U-shaped sheet (71) and a connecting column (72), the U-shaped sheet (71) is fixedly installed on the back plate (1) through the connecting column (72), and the first clamping groove (9) is clamped with the connecting column (72).

6. The full-laminated TP backlight module structure of claim 4, wherein, The second clamping block (8) and the fourth clamping block (13) are both four-prism-taip structures, and the width of the outer side is smaller than that of the inner side.

7. The full-laminated TP backlight module structure of claim 1, wherein, The outer frame (3) is made of aluminum alloy, sheet metal or plastic material.

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