Backlight module structure

Abstract

The backlight module structure comprises an iron frame and a diffusion plate, the iron frame comprises a bottom plate and a side plate perpendicular to the bottom plate, the bottom plate and the side plate are matched to form an installation cavity, the inner surface, facing the installation cavity, of the side plate is provided with a containing groove, the edge of the diffusion plate is inserted into the containing groove, and the diffusion plate is arranged in the containing groove. The containing groove comprises an upper surface and a lower surface which are oppositely arranged, a groove opening is formed in the end, facing the installation cavity, of the containing groove, a boss is arranged at the end, close to the groove opening, of the lower surface, and the two opposite side surfaces of the diffusion plate abut against the upper surface and the boss respectively. According to the utility model, the accommodating groove is designed, and the boss is arranged on the lower surface of the accommodating groove, so that more stable support is provided for the diffusion plate, and the collapse phenomenon is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of display, and particularly to a backlight module structure. Background Art

[0002] In liquid crystal display (LCD) and other display technologies, as one of the key components, the performance of the backlight module directly affects the brightness, uniformity and overall visual effect of the display screen. The backlight module usually consists of multiple parts. As one of the key components, the diffusion plate mainly functions to evenly diffuse the light from the light source, ensure the same brightness on the screen surface, and reduce the phenomenon of uneven brightness and darkness.

[0003] However, in the traditional backlight module design, the diffusion plate is prone to collapse or deformation when used for a long time or under external force. The collapse of the diffusion plate not only affects the uniform diffusion of light, but may also cause defects such as dark areas and bright spots on the screen, seriously affecting the display effect and user experience. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a backlight module structure, which provides a more stable support for the diffusion plate, thereby effectively avoiding the occurrence of the collapse phenomenon.

[0005] A backlight module structure includes an iron frame and a diffusion plate. The iron frame includes a bottom plate and side plates perpendicular to the bottom plate. The bottom plate and the side plates cooperate to form an installation cavity. The inner surface of the side plate facing the installation cavity is provided with a receiving groove. The edge of the diffusion plate is inserted into the receiving groove. The receiving groove includes an upper surface and a lower surface arranged oppositely. One end of the receiving groove facing the installation cavity forms a notch. A boss is provided at one end of the lower surface close to the notch. The two opposite side surfaces of the diffusion plate are respectively abutted against the upper surface and the boss.

[0006] In the above technical solution, the iron frame is composed of a bottom plate and side plates perpendicular to the bottom plate. These components together form an installation cavity, providing a stable support framework for the backlight module. The inner surface of the side plate facing the installation cavity is provided with receiving grooves for inserting the edges of the diffusion plate, thereby realizing the fixation and support of the diffusion plate. The receiving groove includes an upper surface and a lower surface arranged oppositely, and one end of it facing the installation cavity forms a notch. A boss is provided on the lower surface close to the notch. When the diffusion plate is inserted into the receiving groove, its two side surfaces are respectively closely abutted against the upper surface and the boss, forming a stable support structure, effectively restricting the movement of the diffusion plate in the vertical direction, thereby preventing the occurrence of the collapse phenomenon. The utility model provides a stable support for the diffusion plate by designing the receiving groove on the side plate and setting the boss on the lower surface of the receiving groove, thereby effectively avoiding the occurrence of the collapse phenomenon.

[0007] Further, one end of the upper surface close to the notch is provided with a guiding surface, and the guiding surface faces the boss.

[0008] In the above technical solution, the design of the guiding surface provides an intuitive guiding path for the installation of the diffusion plate. When the installer inserts the diffusion plate into the accommodating groove, the guiding surface can guide the diffusion plate to smoothly slide in along the correct direction, reducing the installation difficulty and error rate.

[0009] Further, one end of the boss away from the notch is provided with an inclined surface extending downward obliquely.

[0010] In the above technical solution, the design of the inclined surface extending downward obliquely plays a guiding role when the diffusion plate is inserted into the accommodating groove. The edge of the diffusion plate will gradually slide into the accommodating groove along the inclined direction of the inclined surface, making this process smoother and more natural, reducing the resistance and friction during installation. At the same time, it can also provide a more stable supporting force. Compared with a horizontally arranged surface, the inclined surface enables the boss to support the diffusion plate more stably, forming a stable supporting structure with the upper surface.

[0011] Further, the accommodating groove further includes a side surface opposite to the notch, and there is a gap between the diffusion plate and the side surface.

[0012] In the above technical solution, since the backlight module may be affected by temperature changes during use, the gap between the diffusion plate and the side surface allows the diffusion plate to have a certain expansion and contraction space during temperature changes, reducing the thermal stress generated by thermal expansion and contraction, and preventing the diffusion plate from deforming or being damaged due to excessive thermal stress.

[0013] Further, it further includes a plurality of backlight units, and the backlight units are arranged at intervals on the bottom plate, and the diffusion plate covers the light-emitting path of the backlight units.

[0014] In the above technical solution, the design of arranging the backlight units at intervals enables the light sources to be more evenly distributed on the bottom plate. This distribution method helps to reduce the mutual interference between the light sources, improve the utilization rate and uniformity of the light, and thus improve the display effect. The main function of the diffusion plate is to make the light emitted by the backlight units more uniform. When the light passes through the diffusion plate, it will undergo multiple scattering and refraction, thereby eliminating the bright and dark areas in the light and making the light evenly distributed throughout the display area.

[0015] Further, it further includes an optical film layer, and the optical film layer is arranged above the diffusion plate.

[0016] In the above technical solution, the optical film layer usually includes a plurality of functional film layers such as a brightness enhancement film, a diffusion film, and a prism film. They can act on light together to improve the utilization rate and uniformity of light. By disposing these film layers above the diffusion plate, the propagation path and distribution state of light can be further optimized, thereby significantly improving the brightness, contrast, and color saturation of the display screen.

[0017] Furthermore, there is a gap between the optical film layer and the side plate.

[0018] In the above technical solution, in an environment with large temperature changes, the optical film layer may undergo slight dimensional changes due to thermal expansion and contraction. The design of the gap provides a buffer space for this change, reducing the risk of stress concentration and damage caused by dimensional mismatch.

[0019] Furthermore, the optical film layer includes a quantum dot optical film and a light effect enhancement film sequentially arranged in the vertical direction of the diffusion plate.

[0020] In the above technical solution, the quantum dot optical film utilizes the unique optical properties of quantum dots to precisely control the color output of light, significantly improving the color saturation of the display screen and making the colors more vivid and lively. The light effect enhancement film mainly focuses on improving the utilization efficiency of light. It can redirect the light that may be scattered or wasted through a specific optical structure or coating to the display area, reducing light loss, significantly improving the light effect of the backlight module, and reducing energy consumption.

[0021] Furthermore, it further includes a rubber frame. The side plate is provided with a support platform above the accommodation groove. The upper end of the rubber frame horizontally extends out an extension part. The extension part abuts against the upper end of the side plate, and the lower end of the rubber frame abuts against the support platform.

[0022] In the above technical solution, the design of the support platform provides a stable support foundation for the rubber frame. When the rubber frame abuts against the support platform, it can be stably supported in the vertical direction, reducing the risk of deformation or displacement caused by gravity or other external forces. At the same time, the abutment of the extension part and the upper end of the side plate further enhances the connection strength between the rubber frame and the side plate, making the structure of the entire backlight module more stable.

[0023] Compared with the prior art, the beneficial effect of the present utility model is that by designing an accommodation groove on the inner surface of the side plate facing the installation cavity and inserting the edge of the diffusion plate into the accommodation groove, stable support is provided for the diffusion plate. One end of the accommodation groove facing the installation cavity forms a notch, and a convex platform is provided at one end of the lower surface of the accommodation groove close to the notch, so that the opposite two side surfaces of the diffusion plate respectively abut against the upper surface and the convex platform, thereby effectively avoiding the occurrence of the collapse phenomenon. Description of the Drawings

[0024] Figure 1 This is a schematic cross-sectional structure diagram of the backlight module structure according to an embodiment of the present utility model.

[0025] Figure 2 This is a partial cross-sectional schematic diagram of the side plate according to an embodiment of the present utility model.

[0026] Explanation of the reference numerals in the drawings

[0027] 1. Iron frame; 101. Bottom plate; 102. Side plate; 1021. Accommodating groove; 1022. Upper surface; 1022a. Guiding surface; 1023. Lower surface; 1023a. Boss; 1023b. Inclined surface; 1024. Notch; 1025. Side surface; 1026. Support platform; 103. Installation cavity;

[0028] 2. Diffusion plate;

[0029] 3. Adhesive frame; 301. Extension part;

[0030] 4. Backlight unit;

[0031] 5. Optical film layer; 501. Quantum dot optical film; 502. Light efficiency enhancement film. Specific embodiments

[0032] Next, the backlight module structure of the present utility model will be further described in detail in conjunction with specific embodiments and the accompanying drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0033] Please refer to Figure 1 and Figure 2 In a preferred embodiment, the backlight module structure of the present utility model includes an iron frame 1 and a diffusion plate 2. The iron frame 1 includes a bottom plate 101 and a side plate 102 perpendicular to the bottom plate 101. The bottom plate 101 and the side plate 102 cooperate to form an installation cavity 103. The inner surface of the side plate 102 facing the installation cavity 103 is provided with an accommodating groove 1021. The edge of the diffusion plate 2 is inserted into the accommodating groove 1021. The accommodating groove 1021 includes an upper surface 1022 and a lower surface 1023 arranged oppositely. One end of the accommodating groove 1021 facing the installation cavity 103 forms a notch 1024. One end of the lower surface 1023 close to the notch 1024 is provided with a boss 1023a. The opposite side surfaces of the diffusion plate 2 are respectively abutted against the upper surface 1022 and the boss 1023.

[0034] As can be seen from the above technical solution, the iron frame 1 is composed of a bottom plate 101 and side plates 102 perpendicular to the bottom plate 101. These components together form an installation cavity 103, providing a stable support frame for the backlight module. On the inner surface of the side plate 102 facing the installation cavity 103, accommodation grooves 1021 are provided. These accommodation grooves 1021 are used to insert the edges of the diffusion plate 2, thereby realizing the fixation and support of the diffusion plate 2. The accommodation groove 1021 includes an upper surface 1022 and a lower surface 1023, and one end facing the installation cavity 103 forms a notch 1024. On one side of the lower surface 1023 close to the notch 1024, a boss 1023a is provided. When the diffusion plate 2 is inserted into the accommodation groove 1021, its two side surfaces are respectively in close contact with the upper surface 1022 and the boss 1023a, forming a stable support structure, effectively restricting the movement of the diffusion plate 2 in the vertical direction, thereby preventing the occurrence of the collapse phenomenon. The utility model designs the accommodation groove 1021 on the side plate 102 and sets the boss 1023a in the accommodation groove 1021, providing stable support for the diffusion plate 2, thereby effectively avoiding the occurrence of the collapse phenomenon.

[0035] In this embodiment, there are four side plates 102, and the accommodation grooves 1021 are provided on two relatively arranged side plates 102 and one or two side plates 102 connected thereto.

[0036] It should be noted that one end of the upper surface 1022 close to the notch 1024 is provided with a guiding surface 1022a, and the guiding surface 1022a is opposite to the boss 1023a. The design of the guiding surface 1022a provides an intuitive guiding path for the installation of the diffusion plate 2. When the installer inserts the diffusion plate 2 into the accommodation groove 1021, the guiding surface 1022a can guide the diffusion plate 2 to smoothly slide in along the correct direction, reducing the installation difficulty and error rate. This design makes the installation process smoother, improves the production efficiency, and reduces the damage or rework caused by improper installation.

[0037] Furthermore, one end of the boss 1023a away from the notch 1024 is provided with an inclined surface 1023b extending obliquely downward. The design of the inclined surface 1023b extending obliquely downward plays a guiding role when the diffusion plate 2 is inserted into the accommodation groove 1021. The edge of the diffusion plate 2 will gradually slide into the accommodation groove 1021 along the inclined direction of the inclined surface 1023b, making this process smoother and more natural, reducing the resistance and friction during installation. At the same time, it can also provide a more stable supporting force. Compared with a horizontally arranged surface, the inclined surface 1023b enables the boss 1023a to support the diffusion plate 2 more stably, forming a stable support structure with the upper surface 1022.

[0038] In addition, the accommodation groove 1021 further includes a side surface 1025 opposite to the notch 1024, and there is a gap between the diffusion plate 2 and the side surface 1025. Since the backlight module may be affected by temperature changes during use, the gap between the diffusion plate 2 and the side surface 1025 allows the diffusion plate 2 to have a certain expansion and contraction space during temperature changes, reducing the thermal stress generated by thermal expansion and contraction, and preventing the diffusion plate 2 from deforming or being damaged due to excessive thermal stress. At the same time, the gap between the diffusion plate 2 and the side surface 1025 provides a channel for heat dissipation. During the operation of the backlight module, the diffusion plate 2 and other components may generate heat, and the existence of the gap helps to quickly dissipate the heat, avoiding the accumulation of heat, thereby protecting the electronic components inside the backlight module from the influence of high temperature and extending the service life.

[0039] Furthermore, the present utility model further includes a plurality of backlight units 4, and the backlight units 4 are arranged at intervals on the bottom plate 101, and the diffusion plate 2 covers the light-emitting path of the backlight units 4. The design of arranging the backlight units 4 at intervals enables the light sources to be more evenly distributed on the bottom plate 101. This distribution method helps to reduce the mutual interference between the light sources, improve the utilization rate and uniformity of light, and thus improve the display effect. In practical applications, by adjusting the arrangement density and gap size of the backlight units 4, different display requirements can be met. For example, in a display scenario that requires higher brightness and uniformity, the density of the backlight units 4 can be increased and the gap can be reduced; while in a scenario with low brightness requirements, the density of the backlight units 4 can be reduced and the gap can be increased to reduce costs and energy consumption. The main function of the diffusion plate 2 is to make the light emitted by the backlight units 4 more uniform. When the light passes through the diffusion plate 2, it will undergo multiple scattering and refraction, thereby eliminating the bright and dark areas in the light and making the light evenly distributed throughout the display area.

[0040] Furthermore, the present utility model further includes an optical film layer 5, and the optical film layer 5 is disposed above the diffusion plate. The optical film layer 5 generally includes a plurality of functional film layers such as a brightness enhancement film, a diffusion film, and a prism film, and they can act together on the light to improve the utilization rate and uniformity of light. By disposing these film layers above the diffusion plate 2, the light propagation path and distribution state can be further optimized, thereby significantly improving the brightness, contrast, and color saturation of the display screen.

[0041] It should be noted that there is a gap between the optical film layer 5 and the side plate 102. In an environment with large temperature changes, the optical film layer 5 may undergo slight dimensional changes due to thermal expansion and contraction. The design of the gap provides a buffer space for such changes, reducing the risk of stress concentration and damage caused by dimensional mismatch. At the same time, the gap helps the air to circulate inside the backlight module, thereby improving the heat dissipation performance. When the backlight module is working, the generated heat can be dissipated through the air flow in the gap, reducing the working temperature of the module and extending its service life.

[0042] Specifically, the optical film layer 5 includes a quantum dot optical film 501 and a light efficiency enhancement film 502 arranged in sequence along the vertical direction of the diffusion plate 2. The quantum dot optical film 501 utilizes the unique optical properties of quantum dots to precisely control the color output of light, significantly improving the color saturation of the display screen and making the colors more vivid and lively. The light efficiency enhancement film 502 mainly focuses on improving the light utilization efficiency. It can redirect the light that might otherwise be scattered or wasted to the display area through a specific optical structure or coating, reducing light loss, significantly enhancing the light efficiency of the backlight module, and reducing energy consumption.

[0043] Please refer to Figure 1 and Figure 2 Furthermore, the present utility model also includes a rubber frame 3. The side plate 102 is provided with a support platform 1026 above the accommodation groove 1021. The upper end of the rubber frame 3 horizontally extends outward to form an extension part 301. The extension part 301 abuts against the upper end of the side plate 102, and the lower end of the rubber frame 3 abuts against the support platform 1026. The design of the support platform 1026 provides a stable support foundation for the rubber frame 3. When the rubber frame 3 abuts against the support platform 1026, it can obtain stable support in the vertical direction, reducing the risk of deformation or displacement of the rubber frame 3 caused by gravity or other external forces. At the same time, the abutment between the extension part 301 and the upper end of the side plate 102 further enhances the connection strength between the rubber frame 3 and the side plate 102, making the structure of the entire backlight module more stable.

[0044] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0046] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0047] Although the description of the present utility model is made in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications, and variations based on the above content. Therefore, all such substitutions, improvements, and variations are included within the spirit and scope of the appended claims.

Claims

1. A backlight module structure, characterized in that: It includes an iron frame and a diffusion plate, the iron frame includes a bottom plate and a side plate perpendicular to the bottom plate, the bottom plate and the side plate cooperate to form an installation cavity, the inner surface of the side plate facing the installation cavity is provided with a receiving groove, the edge of the diffusion plate is inserted into the receiving groove, the receiving groove includes an upper surface and a lower surface arranged oppositely, the receiving groove forms a notch at one end facing the installation cavity, a boss is provided at one end of the lower surface close to the notch, and the opposite side surfaces of the diffusion plate respectively abut against the upper surface and the boss.

2. The backlight module structure according to claim 1, characterized in that: A guide surface is provided at one end of the upper surface close to the notch, and the guide surface is opposite to the boss.

3. The backlight module structure according to claim 1, characterized in that: An end of the boss away from the notch is provided with an inclined surface extending obliquely downward.

4. The backlight module structure according to claim 1, characterized in that: The receiving groove further includes a side surface opposite to the notch, and a gap is provided between the diffusion plate and the side surface.

5. The backlight module structure according to claim 1, characterized in that: It also includes a plurality of backlight units, which are arranged on the bottom plate at intervals, and the diffusion plate covers the light output paths of the backlight units.

6. The backlight module structure according to claim 1, characterized in that: It also includes an optical film layer, which is arranged above the diffusion plate.

7. The backlight module structure according to claim 6, characterized in that: There is a gap between the optical film layer and the side plate.

8. The backlight module structure according to claim 6, characterized in that: The optical film layer includes a quantum dot optical film and a light effect enhancement film which are sequentially arranged along the vertical direction of the diffusion plate.

9. The backlight module structure according to claim 1, characterized in that: It also includes a rubber frame, the side plate is provided with a support platform above the accommodating groove, the upper end of the rubber frame horizontally extends an extension portion outward, the extension portion abuts against the upper end of the side plate, and the lower end of the rubber frame abuts against the support platform.

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