Backlight aluminum profile structure of MINI LED direct type liquid crystal display module

Abstract

The utility model relates to the field of liquid crystal display modules, in particular to a MINI LED direct type liquid crystal display module backlight aluminum profile structure which comprises an h-shaped bottom frame, an L-shaped middle frame, an L-shaped front frame and a backlight function assembly. The L-shaped middle frame used for enhancing the overall mechanical strength of the module is installed at the top end of the h-shaped bottom frame, the h-shaped bottom frame comprises the right side transverse plate, the right side transverse plate is horizontally arranged, the first-level vertical plate and the second-level vertical plate are installed at the two ends of the right side transverse plate respectively, and the containing platform and the hanging buckle are installed above the right side transverse plate. An installation platform is installed at the bottom of the aluminum profile, adjustable limiting devices or inserts are possibly arranged on the portions, related to the size of the first-stage vertical plate, the right-side transverse plate and the second-stage vertical plate, in the die through the h-shaped bottom frame, and when transverse plates with different widths need to be produced, the corresponding inserts or limiting blocks can be replaced or adjusted, so that the production efficiency is improved. Therefore, the size of the cavity is changed to adapt to product requirements.

Description

Technical Field

[0001] The utility model relates to the field of liquid crystal display modules, in particular to a backlight aluminum profile structure of a MINI LED direct-lit liquid crystal display module. Background Art

[0002] The MINI LED direct-lit LCD module backlight aluminum profile structure is used as a support and light-guiding structure for the MINI LED direct-lit LCD module backlight system. It provides installation locations for LED light boards, diffusers, optical films, and LCD panels, and effectively controls light to achieve high-quality backlight display functions.

[0003] The existing sheet metal stamping structure has significant drawbacks in production practice. The matching mode between its mold and product is extremely simple. One product corresponds to a set of exclusive molds, which limits the use of the mold to specific product models. Once there is a slight change in the product or a new product is launched, the original mold cannot be used universally and can only be redesigned and manufactured. This directly leads to a significant increase in mold costs. Enterprises not only have to bear the high initial design costs, but also have to deal with the long mold opening cycle and subsequent maintenance costs.

[0004] Therefore, in order to address the problems that the existing sheet metal stamping structure only requires one set of molds for one product, can only produce fixed product models, has high mold costs, and is not flexible in production, a MINI LED direct-type liquid crystal display module backlight aluminum profile structure can be designed. Through the H-shaped bottom frame, the parts of the mold related to the size of the first-level vertical plate, the right horizontal plate, and the second-level vertical plate may be equipped with adjustable limit devices or inserts. When horizontal plates of different widths need to be produced, the corresponding inserts or limit blocks can be replaced or adjusted to change the size of the cavity to adapt to product requirements. Utility Model Content

[0005] In order to overcome the problems of the existing sheet metal stamping structure that one product has one set of molds, can only produce fixed product models, has high mold costs and is not flexible in production.

[0006] The technical solution of the utility model is: a MINI LED direct-type liquid crystal display module backlight aluminum profile structure, including an H-shaped bottom frame, an L-shaped middle frame, an L-shaped front frame and a backlight functional component, the top of the H-shaped bottom frame is installed with an L-shaped middle frame for enhancing the overall mechanical strength of the module, the top of the L-shaped middle frame is installed with an L-shaped front frame for encapsulating the internal components of the entire module to provide protection, a backlight functional component for realizing the backlight function is installed on one side of the H-shaped bottom frame, the H-shaped bottom frame includes a right horizontal plate, the right horizontal plate is horizontally arranged, and a first-level vertical plate and a second-level vertical plate are respectively installed at both ends of the right horizontal plate, a placement platform and a hanging buckle are installed above the right horizontal plate, and an installation platform is installed at the bottom of the aluminum profile.

[0007] Preferably, the H-shaped bottom frame serves as the basic supporting structure, the placement platform is used to place the diffuser plate and optical film material, the hook can fix the position of the optical film material, the installation platform at the bottom of the aluminum profile is used to install the back panel, the L-shaped middle frame is installed on the top of the H-shaped bottom frame, which enhances the overall mechanical strength of the module, and the L-shaped front frame is installed on the top of the L-shaped middle frame to encapsulate the internal components of the entire module. Finally, the backlight function component realizes the backlight function and provides a light source for the liquid crystal display. The light is evenly distributed through the action of the diffuser plate and the optical film material.

[0008] Preferably, a middle frame mounting groove is provided at the top of the first-level vertical plate, a slope for fitting the edge of the reflective film is provided on the right side of the second-level vertical plate, and a back plate groove is provided at the bottom end of the right horizontal plate.

[0009] Preferably, the L-shaped middle frame includes three vertical plates, a first horizontal plate is installed on the top of the three vertical plates, a first limiting step is installed on the top of the first horizontal plate, and a positioning groove corresponding to the hanging buckle is opened at the bottom of the first horizontal plate.

[0010] Preferably, the L-shaped front frame includes four vertical plates, the top ends of the four vertical plates are provided with two-level horizontal plates, and the bottom ends of the two-level horizontal plates are provided with two-level limiting steps.

[0011] Preferably, the backlight functional component includes a back panel structure, a stud is installed at the top of the back panel structure near one side edge, a first-level screw is embedded inside the stud, an LED light board is installed at the top of the back panel structure, and the back panel structure and the LED light board are fixed by second-level screws.

[0012] Preferably, a reflective film is installed on the inclined surface on the right side of the secondary vertical plate, a diffuser plate is installed on the placement platform, and an optical film material is installed on the top of the diffuser plate. The optical film material is fixed and limited by the hook of the H-shaped bottom frame and the positioning groove under the first-level horizontal plate of the middle frame.

[0013] Preferably, the first-level limiting step at the top of the first-level horizontal plate is installed with an anti-slip silicone pad for the LCD panel, and the LCD panel is installed at the top of the first-level horizontal plate. The LCD panel is prevented from moving in the horizontal direction by the anti-slip silicone pad for the LCD panel. The second-level limiting step at the bottom end of the second-level horizontal plate of the front frame is installed with dust-proof foam. The dust-proof foam fills the gap between the front frame and the LCD panel. The L-shaped front frame is fixed to the L-shaped middle frame and the H-shaped bottom frame by three-level screws.

[0014] The beneficial effects of the present invention: The MINI LED direct-type liquid crystal display module backlight aluminum profile structure adopts a modular design concept, and is composed of multiple parts such as an H-shaped bottom frame, an L-shaped middle frame and an L-shaped front frame. These components are combined through specific installation grooves, steps, hooks and screws. Compared with the existing sheet metal stamping structure that uses one set of molds for one product, this structure greatly improves the versatility. In the sheet metal stamping structure, due to the fixed nature of the mold, once the product model changes, the mold needs to be redesigned and manufactured, which is costly and has a long cycle. However, the present aluminum profile structure can quickly adapt to the production needs of different products by adjusting the dimensional parameters of components such as the middle frame and front frame without replacing the entire set of molds. For liquid crystal display modules of different sizes, it is only necessary to change parameters such as the height of the three-level vertical plate or the length of the first-level horizontal plate of the L-shaped middle frame to achieve diversified production of products, which greatly reduces production costs, improves production flexibility, and can respond more quickly to changes in market demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is a schematic diagram of the overall structure of a MINI LED direct-lit LCD display module backlight aluminum profile structure of the present invention;

[0016] Figure 2 Shown is a schematic diagram of the H-shaped bottom frame structure of the aluminum profile structure of the backlight of a MINI LED direct-lit liquid crystal display module of the present invention;

[0017] Figure 3 Shown is a schematic diagram of the L-shaped middle frame structure of the aluminum profile structure of the backlight of a MINI LED direct-lit liquid crystal display module of the present invention;

[0018] Figure 4 Shown is a schematic diagram of the L-shaped front frame structure of the aluminum profile structure of the backlight of a MINI LED direct-lit liquid crystal display module of the present invention.

[0019] Explanation of the accompanying symbols: 1. First-level vertical plate; 2. Right horizontal plate; 3. Second-level vertical plate; 4. Middle frame installation slot; 5. Hanging buckle; 6. Placement platform; 7. Installation platform; 8. Back panel groove; 9. Third-level vertical plate; 10. First-level horizontal plate; 11. First-level limiting step; 12. Positioning groove; 13. Fourth-level vertical plate; 14. Second-level horizontal plate; 15. Second-level limiting step; 16. Back panel structure; 17. Stud; 18. First-level screw; 19. LED light board; 20. Second-level screw; 21. Reflective film; 22. Diffuser plate; 23. Optical film material; 24. Anti-slip silicone pad for LCD panel; 25. LCD display panel; 26. Dust-proof foam; 27. Third-level screw. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] See also Figure 1-Figure 4 The utility model provides an embodiment: a MINI LED direct-type liquid crystal display module backlight aluminum profile structure, including an H-shaped bottom frame, an L-shaped middle frame, an L-shaped front frame and a backlight function component. The top of the H-shaped bottom frame is installed with an L-shaped middle frame for enhancing the overall mechanical strength of the module. The top of the L-shaped middle frame is installed with an L-shaped front frame for encapsulating the internal components of the entire module to provide protection. A backlight function component for realizing the backlight function is installed on one side of the H-shaped bottom frame. The H-shaped bottom frame includes a right horizontal plate 2, which is horizontally arranged. A first-level vertical plate 1 and a second-level vertical plate 3 are respectively installed at both ends of the right horizontal plate 2. 2 is provided with a placement platform 6 and a hanging buckle 5, a mounting platform 7 is provided at the bottom of the aluminum profile, the H-shaped bottom frame serves as the basic supporting structure, the hanging buckle 5 can fix the position of the optical film 23, the mounting platform 7 at the bottom of the aluminum profile is used to install the back panel, the L-shaped middle frame is installed on the top of the H-shaped bottom frame, which enhances the overall mechanical strength of the module, the L-shaped front frame is installed on the top of the L-shaped middle frame, and the internal components of the entire module are encapsulated. Finally, the backlight function component realizes the backlight function and provides a light source for the liquid crystal display. The light is evenly distributed through the action of the diffuser 22 and the optical film 23.

[0022] See also Figure 2-Figure 3 The bottom end of the right horizontal plate 2 is provided with a back plate groove 8. The middle frame mounting groove 4 opened at the top of the first vertical plate 1 has a specific shape and size, which matches the shape of the bottom of the third vertical plate 9. During the assembly process, the third vertical plate 9 can be accurately embedded in the middle frame mounting groove 4. This embedded installation method provides accurate horizontal and vertical positioning for the middle frame. The L-shaped middle frame includes three vertical plates 9, and a first horizontal plate 10 is installed at the top of the third vertical plate 9. A first limiting step 11 is installed at the top of the first horizontal plate 10. A positioning groove 12 corresponding to the hanging buckle 5 is opened at the bottom of the first horizontal plate 10. The first limiting step 11 at the top of the first horizontal plate 10 provides a precise installation position for the anti-slip silicone pad 24 of the LCD panel. After the anti-slip silicone pad 24 of the LCD panel is installed on the first limiting step 11, its height matches the thickness of the LCD panel 25, and can fit closely to the edge of the LCD panel.

[0023] See also Figure 3-Figure 4In this embodiment, the L-shaped front frame includes four vertical plates 13, a secondary horizontal plate 14 is installed at the top of the four vertical plates 13, and a secondary limiting step 15 is installed at the bottom of the secondary horizontal plate 14. The secondary limiting step 15 at the bottom of the secondary horizontal plate 14 provides a precise installation position for the dust-proof foam 26 of the LCD panel. The backlight function component includes a back plate structure 16, a stud 17 is installed at the top of the back plate structure 16 near one side edge, and a primary screw 18 is embedded in the stud 17. An LED light board 19 is installed at the top of the back plate structure 16. The back plate structure 16 and the LED light board 19 are fixed by secondary screws 20. The combination of the stud 17 and the primary screw 18 tightly fixes the back plate structure 16 to the bottom frame. The height and diameter of the stud 17 and the thread specification of the primary screw 18 are carefully designed and accurately match the back plate groove 8. During assembly, this connection method can effectively disperse the force.

[0024] See also Figure 1-Figure 4 In this embodiment, a reflective film 21 is installed on the inclined surface on the right side of the secondary vertical plate 3, a diffuser plate 22 is installed on the placement platform 6, and an optical film material 23 is installed on the top of the diffuser plate 22. The optical film material 23 is fixed and limited by the hook 5 of the H-shaped bottom frame and the positioning groove 12 below the first-level horizontal plate 10 of the middle frame. The reflective film 21 fits tightly on the inclined surface on the right side of the secondary vertical plate 3. The angle of the inclined surface is carefully designed. According to the law of light reflection, the light scattered backward and sideways by the LED light board 19 is reflected back to the top at the optimal angle. The reflective film 21 itself has the characteristics of high reflectivity, which can minimize the loss of light in the reflection process. The first-level limiting step 11 at the top of the first-level horizontal plate 10 is installed with an anti-slip silicone pad 24 for the LCD panel. 0 A liquid crystal display panel 25 is installed at the top, and the liquid crystal display panel 25 is prevented from moving in the horizontal direction by the liquid crystal panel anti-slip silicone pad 24. A dust-proof foam 26 is installed on the secondary limiting step 15 at the bottom end of the secondary horizontal plate 14 of the front frame, and the dust-proof foam 26 fills the gap between the front frame and the liquid crystal display panel 25. The L-shaped front frame is fixed to the L-shaped middle frame and the H-shaped bottom frame by three-level screws 27. The dust-proof foam 26 is installed on the secondary limiting step 15 at the bottom end of the secondary horizontal plate 14 of the front frame, filling the gap between the front frame and the liquid crystal display panel 25. The depth and width of the secondary limiting step 15 are designed to match the size of the dust-proof foam 26, which can ensure that the foam is stably installed in this position and provide appropriate compression in the vertical direction to achieve a good sealing effect.

[0025] When working, align the pre-installed stud 17 at the top of the back panel structure 16 near one side edge with the back panel groove 8 at the bottom end of the right horizontal plate 2 of the H-shaped bottom frame. After placing the back panel structure 16 in place, use the first-level screw 18 to screw into the inside of the stud 17 to firmly fix the back panel structure 16 on the H-shaped bottom frame, ensuring that it is installed flat and stable, laying the foundation for the installation of subsequent components, and place the LED light board 19 on the top of the fixed back panel structure 16 so that the mounting holes of the two are aligned, and then use the second-level screw 20 to tightly fix the LED light board 19 to the back panel structure 16 to ensure that the LED light board 19 There should be no looseness in the horizontal and vertical directions so that it can emit light stably. Carefully fit the reflective film 21 on the inclined surface on the right side of the secondary vertical plate 3 to ensure that the reflective film 21 is in close contact with the inclined surface without wrinkles or bubbles, so that the reflective film 21 can effectively reflect the light scattered backward and sideways by the LED light board 19 back upward. Place the diffuser 22 on the placement platform 6 of the H-shaped bottom frame and place it stably. Then, place the optical film material 23 on the top of the diffuser 22. First, use the hook 5 of the H-shaped bottom frame to preliminarily fix the edge of the optical film material 23, and then place the first horizontal plate 10 on the top of the third vertical plate 9 of the L-shaped middle frame. Install it in a suitable position so that the positioning groove 12 at the bottom end of the first-level horizontal plate 10 cooperates with the optical film material 23, further limiting and fixing the optical film material 23 to ensure that the vertical position of the optical film material 23 is accurate and stable, so that the light can be well controlled and guided when passing through the diffuser plate 22 and the optical film material 23. Install the liquid crystal panel anti-skid silicone pad 24 on the first-level limiting step 11 at the top of the first-level horizontal plate 10, and then place the liquid crystal display panel 25 on the top of the first-level horizontal plate 10, so that the liquid crystal display panel 25 is prevented from moving in the horizontal direction by the liquid crystal panel anti-skid silicone pad 24, ensuring that the installation position of the liquid crystal display panel 25 The position is precise and stable so that it can accurately receive the processed light and display the image. Install dustproof foam 26 on the secondary limiting step 15 at the bottom of the secondary horizontal plate 14 at the top of the fourth-level vertical plate 13 of the L-shaped front frame, and then cover the L-shaped front frame above the installed LCD panel 25, so that the dustproof foam 26 fills the gap between the front frame and the LCD panel 25 to play a dust-proof and buffering role. Finally, use the third-level screws 27 to fix the L-shaped front frame to the L-shaped middle frame and the H-shaped bottom frame, and evenly tighten the third-level screws 27 to form a complete and stable structure of the entire module, completing the installation of the entire device.

[0026] Through the above steps, the H-shaped bottom frame serves as the basic supporting structure, the hook 5 can fix the position of the optical film 23, the mounting platform 7 at the bottom of the aluminum profile is used to install the back panel, the L-shaped middle frame is installed on the top of the H-shaped bottom frame, which enhances the overall mechanical strength of the module, and the L-shaped front frame is installed on the top of the L-shaped middle frame to encapsulate the internal components of the entire module. Finally, the backlight function component realizes the backlight function and provides a light source for the liquid crystal display. The light is evenly distributed through the action of the diffuser 22 and the optical film 23.

Claims

1. A MINI LED direct-lit LCD module backlight aluminum profile structure, including an H-shaped bottom frame; characterized by: The invention also includes an L-shaped middle frame, an L-shaped front frame and a backlight function component. The top of the H-shaped bottom frame is installed with an L-shaped middle frame for enhancing the overall mechanical strength of the module. The top of the L-shaped middle frame is installed with an L-shaped front frame for encapsulating the internal components of the entire module and providing protection. A backlight function component for realizing a backlight function is installed on one side of the H-shaped bottom frame. The H-shaped bottom frame includes a right side horizontal plate (2). The right side horizontal plate (2) is horizontally arranged. A first-level vertical plate (1) and a second-level vertical plate (3) are respectively installed at both ends of the right side horizontal plate (2). A placement platform (6) and a hanging buckle (5) are installed above the right side horizontal plate (2). A mounting platform (7) is installed at the bottom of the aluminum profile.

2. The MINI LED direct-lit LCD module backlight aluminum profile structure according to claim 1, characterized in that: A middle frame mounting groove (4) is provided at the top of the first-level vertical plate (1), an inclined surface for fitting the reflective film 21 is provided on the right side of the second-level vertical plate (3), and a back plate groove (8) is provided at the bottom end of the right horizontal plate (2).

3. The MINI LED direct-lit LCD module backlight aluminum profile structure according to claim 1, characterized in that: The L-shaped middle frame includes three vertical plates (9), a first-level horizontal plate (10) is installed on the top of the three vertical plates (9), a first-level limiting step (11) is installed on the top of the first-level horizontal plate (10), and a positioning groove (12) corresponding to the hanging buckle (5) is opened at the bottom of the first-level horizontal plate (10).

4. The MINI LED direct-lit LCD module backlight aluminum profile structure according to claim 1, characterized in that: The L-shaped front frame comprises four-level vertical plates (13), the top ends of the four-level vertical plates (13) are provided with two-level horizontal plates (14), and the bottom ends of the two-level horizontal plates (14) are provided with two-level limiting steps (15).

5. The MINI LED direct-lit LCD module backlight aluminum profile structure according to claim 1, characterized in that: The backlight functional component includes a back plate structure (16), a stud (17) is installed at the top of the back plate structure (16) near one side edge, a first-level screw (18) is embedded in the stud (17), an LED light board (19) is installed at the top of the back plate structure (16), and the back plate structure (16) and the LED light board (19) are fixed by a second-level screw (20).

6. The MINI LED direct-lit LCD module backlight aluminum profile structure according to claim 5, characterized in that: A reflective film (21) is installed on the inclined surface on the right side of the secondary vertical plate (3), a diffusion plate (22) is installed on the placement platform (6), an optical film material (23) is installed on the top of the diffusion plate (22), and the optical film material (23) is fixed and limited by the hanging buckle (5) of the H-shaped bottom frame and the positioning groove (12) below the first-level horizontal plate (10) of the middle frame.

7. The MINI LED direct-lit LCD module backlight aluminum profile structure according to claim 6, characterized in that: A liquid crystal panel anti-skid silicone pad (24) is installed on the first-level limiting step (11) at the top of the first-level horizontal plate (10), and a liquid crystal display panel (25) is installed on the top of the first-level horizontal plate (10). The liquid crystal display panel (25) is prevented from moving in the horizontal direction by the liquid crystal panel anti-skid silicone pad (24). A dustproof foam (26) is installed on the second-level limiting step (15) at the bottom of the second-level horizontal plate (14) of the front frame. The dustproof foam (26) fills the gap between the front frame and the liquid crystal display panel (25). The L-shaped front frame is fixed to the L-shaped middle frame and the H-shaped bottom frame by three-level screws (27).

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