Backlight module for improving collapse of diffusion plate

Abstract

The backlight module comprises an iron frame and the 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 a mounting cavity, a containing groove is formed in the inner surface, facing the mounting cavity, of the side plate, and the diffusion plate is arranged in the containing groove. A containing groove is formed in the mounting cavity, a notch is formed in the end, facing the mounting cavity, of the containing groove, the edge of the diffusion plate is inserted into the containing groove through the notch, the containing groove comprises a first surface and a second surface which are oppositely arranged, protrusions are arranged on the first surface and / or the second surface, and at least one surface of the diffusion plate abuts against the protrusions. According to the utility model, the accommodating grooves and the bulges are designed, 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 for improving the collapse of a diffusion plate. Background Art

[0002] In the design and application of a backlight module, the diffusion plate is a crucial component, mainly responsible for evenly diffusing the light emitted by the light source to ensure that the entire display panel emits light evenly, thereby improving the visual effect. When the backlight module is used for a long time or affected by the external environment (such as temperature change, vibration, etc.), the diffusion plate may deform due to gravity or material properties, that is, "collapse". The collapse of the diffusion plate not only affects the uniform diffusion of light, resulting in dark areas or uneven brightness in the picture, but also affects the overall performance and service life of the backlight module. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a backlight module for improving the collapse of a diffusion plate, which provides a more stable support for the diffusion plate, thereby effectively avoiding the occurrence of the collapse phenomenon.

[0004] A backlight module for improving the collapse of a diffusion plate 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. A receiving groove is provided on the inner surface of the side plate facing the installation cavity. One end of the receiving groove facing the installation cavity forms a notch. The edge of the diffusion plate is inserted into the receiving groove through the notch. The receiving groove includes a first surface and a second surface arranged opposite to each other. Protrusions are provided on the first surface and / or the second surface. At least one surface of the diffusion plate abuts against the protrusions.

[0005] 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 frame for the backlight module. A receiving groove is provided on the inner surface of the side plate facing the installation cavity, and one end of the receiving groove facing the installation cavity forms a notch. The edge of the diffusion plate is inserted into the receiving groove through the notch, thereby realizing the fixation and support of the diffusion plate. The receiving groove includes a first surface and a second surface arranged opposite to each other. Protrusions are provided on the first surface and / or the second surface. The edge of the diffusion plate is firmly inserted into the receiving groove, and the protrusions are in close contact with the surface of the diffusion plate, effectively preventing the collapse problem of the diffusion plate due to external force or material fatigue after long-term use. The utility model provides a stable support for the diffusion plate by designing the receiving groove and arranging protrusions in the receiving groove, thereby effectively avoiding the occurrence of the collapse phenomenon.

[0006] Further, the receiving groove further includes a third surface opposite to the notch, and there is a gap between the diffusion plate and the third surface.

[0007] 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 third 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.

[0008] Further, the protrusion extends along the length direction of the accommodation groove.

[0009] In the above technical solution, the protrusion extending along the length direction of the accommodation groove means that it can provide uniform supporting force to the diffusion plate throughout the length. This uniform support helps to prevent the diffusion plate from locally collapsing or deforming when subjected to gravity or other external forces, thereby maintaining the flatness and stability of the diffusion plate.

[0010] Further, the abutting surface of the protrusion and the diffusion plate is arc-shaped.

[0011] In the above technical solution, the arc-shaped abutting surface can better disperse the stress at the contact point between the diffusion plate and the protrusion. Compared with a straight or flat contact surface, the arc-shaped surface can provide a smoother transition, reducing the risk of damage caused by stress concentration and avoiding damage to the diffusion plate.

[0012] Further, it further includes a plurality of backlight units, the backlight units are arranged at intervals on the bottom plate, and the diffusion plate covers the light-emitting path of the backlight units.

[0013] 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 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.

[0014] Further, it further includes an optical film layer, and the optical film layer is arranged above the diffusion plate.

[0015] In the above technical solution, the optical film layer usually includes multiple functional film layers such as a brightness enhancement film, a diffusion film, and a prism film. They can act on the light together to improve the utilization rate and uniformity of light. By arranging these film layers above the diffusion plate, the light propagation path and distribution state can be further optimized, thereby significantly improving the brightness, contrast, and color saturation of the display screen.

[0016] Further, the optical film layer includes a quantum dot optical film and a light efficiency enhancement film arranged in sequence along the vertical direction of the diffusion plate.

[0017] 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 efficiency enhancement film mainly focuses on improving the light utilization efficiency. It can redirect the light that might otherwise be scattered or wasted through a specific optical structure or coating to the display area, reducing light loss, significantly enhancing the light efficiency of the backlight module, and reducing energy consumption.

[0018] Further, it also 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 outward to form 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.

[0019] 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.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows: By designing an accommodation groove on the inner surface of the side plate facing the installation cavity and forming a notch at one end of the accommodation groove facing the installation cavity, the edge of the diffusion plate is inserted into the accommodation groove through the notch, providing stable support for the diffusion plate. At the same time, protrusions are provided on the first surface and / or the second surface of the accommodation groove, so that at least one surface of the diffusion plate abuts against the protrusions, effectively avoiding the occurrence of the collapse phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic cross-sectional structure diagram of a backlight module for improving the collapse of a diffusion plate according to an embodiment of the present utility model.

[0022] Figure 2 It is a schematic cross-sectional view of an iron frame according to an embodiment of the present utility model.

[0023] Figure 3 It is a three-dimensional view of an iron frame according to an embodiment of the present utility model.

[0024] REFERENCE NUMERALS IN THE DRAWINGS

[0025] 1. Iron frame; 101. Bottom plate; 102. Side plate; 1021. Accommodation groove; 1021a. First surface; 1021b. First surface; 1021c. First surface; 1022. Notch; 1023. Support platform; 103. Installation cavity; 104. Protrusion;

[0026] 2. Diffusion plate;

[0027] 3. Rubber frame; 301. Extension part;

[0028] 4. Backlight unit;

[0029] 5. Optical film layer; 501. Quantum dot optical film; 502. Light efficiency enhancement film. Detailed implementation manner

[0030] The backlight module for improving the collapse of the diffusion plate of the present utility model will be further described in detail below in conjunction with specific embodiments and the accompanying drawings. The preferred embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0031] Please refer to Figures 1 to 3 , in a preferred embodiment, the backlight module for improving the collapse of the diffusion plate 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 a receiving groove 1021. One end of the receiving groove 1021 facing the installation cavity 103 forms a notch 1022. The edge of the diffusion plate 2 is inserted into the receiving groove 1021 through the notch 1022. The receiving groove 1021 includes a first surface 1021a and a second surface 1021b arranged opposite to each other. A protrusion 104 is provided on the first surface 1021a and / or the second surface 1021b. At least one surface of the diffusion plate 2 abuts against the protrusion 104.

[0032] It can be seen from the above technical solution that the iron frame 1 is composed of a bottom plate 101 and a side plate 102 perpendicular to the bottom plate 101. These components together form an installation cavity 103, providing a stable support frame for the backlight module. The inner surface of the side plate 102 facing the installation cavity 103 is provided with a receiving groove 1021, and one end of the receiving groove 1021 facing the installation cavity 103 forms a notch 1022. The edge of the diffusion plate 2 is inserted into the receiving groove 1021 through the notch 1022, thereby realizing the fixation and support of the diffusion plate 2. The receiving groove 1021 includes a first surface 1021a and a second surface 1021b arranged opposite to each other. A protrusion 104 is provided on the first surface 1021a and / or the second surface 1021b. The edge of the diffusion plate 2 is firmly inserted into the receiving groove 1021, and the protrusion 104 is in close contact with the surface of the diffusion plate 2, effectively preventing the collapse problem of the diffusion plate 2 due to external force or material fatigue after long-term use. By designing the receiving groove 1021 and providing the protrusion 104 in the receiving groove 1021, the present utility model provides stable support for the diffusion plate 2, thereby effectively avoiding the occurrence of the collapse phenomenon.

[0033] In addition, the accommodating groove 1021 further includes a third surface 1021c opposite to the notch, and there is a gap between the diffusion plate 2 and the third surface 1021c. Since the backlight module may be affected by temperature changes during use, the gap between the diffusion plate 2 and the third surface 1021c 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 third surface 1021c 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.

[0034] It should be noted that the protrusion 104 extends along the length direction of the accommodating groove 1021. The protrusion 104 extending along the length direction of the first surface 1021a means that it can provide uniform supporting force to the diffusion plate 2 throughout the length. This uniform support helps to prevent the diffusion plate 2 from locally collapsing or deforming when subjected to gravity or other external forces, thereby maintaining the flatness and stability of the diffusion plate 2. At the same time, the extended protrusion 104 increases the contact area with the diffusion plate 2, thereby enhancing the supporting ability of the accommodating groove 1021 for the diffusion plate 2, preventing the collapse of the diffusion plate, and also capable of improving the structural strength of the entire backlight module, making it more durable and reliable.

[0035] Specifically, the abutting surface of the protrusion 104 and the diffusion plate 2 is arc-shaped. The arc-shaped abutting surface can better disperse the stress at the contact point between the diffusion plate 2 and the protrusion 104. Compared with a straight or flat contact surface, the arc-shaped surface can provide a smoother transition, reducing the risk of damage caused by stress concentration and preventing the diffusion plate 2 from being damaged. In actual use, when the diffusion plate 2 undergoes minute deformation due to factors such as temperature changes and gravity. The arc-shaped abutting surface can better adapt to this deformation, maintaining a stable contact with the diffusion plate 2 and avoiding support failure or damage caused by deformation.

[0036] Furthermore, the utility model further includes a plurality of backlight units 4, which 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 source to be more evenly distributed on the bottom plate 101. This distribution method helps to reduce the mutual interference between 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 unit 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.

[0037] Furthermore, the utility model further includes an optical film layer 5, which is arranged above the diffusion plate. The optical film layer 5 usually includes multiple functional film layers such as a brightness enhancement film, a diffusion film, and a prism film. They can act together on the light to improve the utilization rate and uniformity of light. By arranging 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.

[0038] 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 may be scattered or wasted through a specific optical structure or coating to the display area, reduce the loss of light, significantly improve the light efficiency of the backlight module, and reduce energy consumption.

[0039] Please refer to Figure 1 and Figure 2, the present utility model further includes a rubber frame 3. The side plate 102 is provided with a support platform 1023 above the accommodation groove 1021. The upper end of the rubber frame 3 horizontally extends outwards 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 1023. The design of the support platform 1023 provides a stable support foundation for the rubber frame 3. When the rubber frame 3 abuts against the support platform 1023, it can be stably supported 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.

[0040] 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.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the 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, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0042] In the present utility model, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. 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.

[0043] Although the description of the present utility model is made in combination with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included within the spirit and scope of the appended claims.

Claims

1. A backlight module for improving the collapse of a diffusion plate, characterized in that: It includes an iron frame and a diffuser 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 receiving groove forms a notch toward one end of the installation cavity, the edge of the diffuser plate is inserted into the receiving groove through the notch, the receiving groove includes a first surface and a second surface arranged opposite to each other, the first surface and / or the second surface is provided with a protrusion, and at least one surface of the diffuser plate is against the protrusion.

2. The backlight module for improving the collapse of the diffusion plate according to claim 1, characterized in that: The receiving groove further includes a third surface opposite to the notch, and a gap is provided between the diffusion plate and the third surface.

3. The backlight module for improving the collapse of the diffusion plate according to claim 1, characterized in that: The protrusion extends along the length direction of the accommodating groove.

4. The backlight module for improving diffusion plate collapse according to claim 1, characterized in that: The abutting surface between the protrusion and the diffusion plate is arc-shaped.

5. The backlight module for improving diffusion plate collapse 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 for improving diffusion plate collapse 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 for improving the collapse of the diffusion plate according to claim 6, characterized in that: There is a gap between the optical film layer and the side plate.

8. The backlight module for improving the collapse of the diffusion plate 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 for improving diffusion plate collapse 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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