Backlight module, assembling method thereof and display device

Abstract

The invention relates to a backlight module, an assembling method thereof and a display device. The backlight module comprises a mounting frame, the mounting frame comprises a U-shaped frame and a strip-shaped frame, the U-shaped frame and the strip-shaped frame are spliced together and define a hollow mounting area, and a mounting groove is formed in the side, facing the mounting area, of the U-shaped frame; the light source structure is located in the installation area, and the edge of the light source structure is inserted into the installation groove. The backlight module is good in heat dissipation performance, low in assembly difficulty and better in optical performance.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a backlight module, an assembling method of a backlight module, and a display device. Background Art

[0002] See also Figure 1 In the current display device 100' (such as a liquid crystal display), the display panel 1' itself does not emit light, and it needs to use a backlight module to complete the display function. The backlight module includes a back plate 2', a light board 3', a reflective sheet 4', a diffuser 5', an optical film 6', a middle frame 7' and a front frame 8'. When assembling the display device 100', first fix the light board 3' with the reflective sheet 4' on the back plate 2', so that the light board 3' is in full contact with the back plate 2' to achieve conductive heat dissipation; then assemble the middle frame 7' around the back plate 2', and use the middle frame 7' to support the diffuser 5' and the optical film 6'; then clamp the front frame 8' on the back plate 2', and use the front frame 8' to support and fix the display panel 1'. In this display device 100', the lamp board 3' is wrapped by the back plate 2', resulting in poor heat dissipation of the lamp board 3', which affects the service life of the lamp board 3'; and during the assembly process of the middle frame 7' and the front frame 8' with the back plate 2', each component is easily deformed, resulting in assembly errors, which in turn brings optical problems. Summary of the invention

[0003] The embodiments of the present application provide a backlight module and an assembly method thereof, and a display device, so as to at least partially solve the above technical problems.

[0004] In order to achieve the above object, according to a first aspect of the present application, a backlight module is provided, comprising:

[0005] An installation frame, the installation frame comprising a U-shaped frame and a strip frame, the U-shaped frame and the strip frame are assembled together to enclose a hollow installation area, and a mounting groove is provided on one side of the U-shaped frame facing the installation area;

[0006] A light source structure is located in the installation area and an edge of the light source structure is inserted into the installation groove.

[0007] Optionally, the light source structure includes a light emitting component, the mounting groove includes a first mounting groove, and an edge of the light emitting component is inserted into the first mounting groove.

[0008] Optionally, the light emitting component includes a lamp board, the lamp board includes a conductive plate and lamp beads, and the lamp beads are arranged on a first surface of the conductive plate and are conductively connected to the conductive plate.

[0009] Optionally, the light-emitting component further includes a reflective sheet, which is attached to the first surface and has avoidance holes corresponding to the lamp beads for the lamp beads to pass through.

[0010] Optionally, a side wall of the first mounting groove facing away from the reflective sheet extends toward the mounting area to form a supporting boss, and the light-emitting component is fixedly connected to the supporting boss; and / or an edge of the light-emitting component is interference fit with the first mounting groove.

[0011] Optionally, the light source structure also includes a light-evening component located on the light-emitting side of the light-emitting component, and the mounting groove also includes a second mounting groove. Along the thickness direction of the backlight module, the first mounting groove and the second mounting groove are spaced apart, and the edge of the light-evening component is inserted into the second mounting groove.

[0012] Optionally, the light homogenization component includes a diffuser plate.

[0013] Optionally, the light homogenizing component further includes an optical film, and the optical film is located on a side of the diffuser plate away from the light-emitting component.

[0014] Optionally, the second mounting groove is a U-shaped groove, and a width of the second mounting groove is greater than a total thickness of the diffusion plate and the optical film.

[0015] Optionally, a difference between a width of the second mounting groove and a total thickness of the diffuser plate and the optical film is 0.35 mm to 0.45 mm.

[0016] Optionally, the U-shaped frame is integrally formed; and / or two ends of the U-shaped frame are respectively butted against two ends of the strip frame.

[0017] According to a second aspect of the present application, a method for assembling a backlight module is provided, comprising:

[0018] Providing a U-shaped frame, wherein an installation groove is provided on the inner side of the U-shaped frame;

[0019] Providing a light source structure, pushing the light source structure into the inner side of the U-shaped frame along the mounting groove and inserting the edge of the light source structure into the mounting groove;

[0020] A strip frame is provided, and the strip frame is assembled with the U-shaped frame to form a mounting frame surrounding the light source structure.

[0021] According to a third aspect of the present application, a display device is also provided, comprising the backlight module as described above or the backlight module assembled by the method as described above.

[0022] Optionally, the display device further comprises a display panel, the display panel is located on the light emitting side of the backlight module, a side surface of the mounting frame is formed as a supporting surface, the display panel covers the backlight module and is supported on the supporting surface.

[0023] The backlight module of the embodiment of the present application eliminates the back plate, the middle frame and the front frame, and uses a mounting frame to install the light source structure. Specifically, the light source structure is installed in a hollow mounting area on the mounting frame, so that both side surfaces of the light source structure can be exposed outside the mounting frame, which is beneficial for the heat of the light source structure to be quickly dissipated to the external environment, thereby ensuring the service life of the light source structure. In addition, the installation frame is configured to include a U-shaped frame and a strip frame, and the U-shaped frame and the strip frame can be assembled together. A mounting groove is opened on the side of the U-shaped frame facing the installation area in the installation frame, and the edge of the light source structure can be inserted into the mounting groove. In this way, when assembling the backlight module, the mounting groove on the U-shaped frame can be used to limit the light source structure. By adopting a push-pull method, the light source structure is first pushed into the U-shaped frame along the mounting groove to fix the edge of the light source structure, and then the strip frame and the U-shaped frame are spliced ​​to achieve the strip frame and the U-shaped frame to jointly limit and fix the light source structure. This not only greatly improves the operability of assembling the installation frame and the light source structure and reduces the difficulty of assembling the backlight module, but also the installation frame only needs to assemble the U-shaped frame and the strip frame together to obtain the installation frame. The installation frame is not easy to deform, and the assembly error is smaller, which is beneficial to improving the optical performance of the backlight module.

[0024] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0026] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of a display device provided by the prior art;

[0028] Figure 2 is a schematic diagram of the exploded structure of a display device provided in an embodiment of the present application;

[0029] Figure 3 is a schematic diagram of the upward structure of the backlight module provided in an embodiment of the present application;

[0030] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0031] Figure 5 yes Figure 3 Schematic diagram of the cross-sectional structure along the middle BB direction;

[0032] Figure 6 yes Figure 4 Enlarged view of the middle C part;

[0033] Figure 7 yes Figure 5 Enlarged view of the middle D part;

[0034] Figure 8 is a bottom-up structural schematic diagram of the installation frame provided in an embodiment of the present application;

[0035] Fig. 9 It is a flow chart of the assembly method of the backlight module provided in the embodiment of the present application.

[0036] Description of reference numerals:

[0037] 10: Backlight module;

[0038] 1: mounting frame; 11: U-shaped frame; 12: strip frame; 13: mounting area; 14: mounting groove; 141: first mounting groove; 1411: supporting boss; 142: second mounting groove; 15: supporting surface;

[0039] 2: light source structure; 21: light emitting component; 211, 3': lamp board; 2111: conductive plate; 21111: first surface; 2112: lamp beads; 212, 4': reflector; 22: light homogenizing component; 221, 5': diffuser; 222, 6': optical film;

[0040] 2': back panel;

[0041] 7': middle frame;

[0042] 8': front frame;

[0043] 20, 1': display panel;

[0044] 100, 100': display device. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0046] According to the first aspect of the embodiment of the present application, referring to Figures 2 to 8 The embodiment of the present application provides a backlight module 10, which includes a mounting frame 1 and a light source structure 2. Specifically, the mounting frame 1 includes a U-shaped frame 11 and a strip frame 12, and the U-shaped frame 11 and the strip frame 12 are assembled together and enclosed to form a hollow mounting area 13. A mounting groove 14 is provided on one side of the U-shaped frame 11 facing the mounting area 13; the light source structure 2 is installed on the mounting frame 1. In detail, the light source structure 2 is located in the mounting area 13 and the edge of the light source structure 2 is inserted into the mounting groove 14.

[0047] The backlight module 10 is one of the key components of the display device 100 , and is used to supply light with sufficient brightness and uniform distribution so that the display device 100 can display images normally.

[0048] The backlight module 10 includes a mounting frame 1 and a light source structure 2. The mounting frame 1 is a support body for carrying the light source structure 2, and the light source structure 2 is used for emitting and transmitting light.

[0049] The installation frame 1 includes a U-shaped frame 11 and a strip frame 12. The U-shaped frame 11 refers to a component whose shape is U-shaped or roughly U-shaped, and the strip frame 12 refers to a component whose shape is long or roughly long. Before the backlight module 10 is assembled, the U-shaped frame 11 and the strip frame 12 are independent components. During the assembly process, the U-shaped frame 11 and the strip frame 12 are assembled together to form an installation frame 1 with a hollow installation area 13. It can be understood that the installation frame 1 is a frame body, the installation area 13 is a hollow area of ​​the frame body, the U-shaped frame 11 and the strip frame 12 form a solid frame edge of the frame body, and the total side length of the U-shaped frame 11 is greater than the side length of the strip frame 12. In the installation frame 1, a mounting groove 14 is opened on the U-shaped frame 11, and the mounting groove 14 is located on the side of the U-shaped frame 11 facing the installation area 13, that is, the opening of the mounting groove 14 faces the installation area 13, and the mounting groove 14 is connected to the installation area 13. In the installation frame 1 , the strip frame 12 may or may not be provided with an installation groove 14 .

[0050] The light source structure 2 is installed on the installation frame 1 specifically by inserting the edge of the light source structure 2 into the installation groove 14 of the U-shaped frame 11, and then assembling the strip frame 12 and the U-shaped frame 11 together, so that the light source structure 2 is surrounded by the U-shaped frame 11 and the strip frame 12, that is, the light source structure 2 is located in the installation area 13.

[0051] The backlight module 10 provided in the embodiment of the present application eliminates the back plate, the middle frame and the front frame, and uses the mounting frame 1 to mount the light source structure 2. Specifically, the light source structure 2 is mounted in a hollow mounting area 13 on the mounting frame 1, so that both side surfaces of the light source structure 2 can be exposed outside the mounting frame 1, which is beneficial for the heat of the light source structure 2 to be quickly dissipated to the external environment, thereby ensuring the service life of the light source structure 2.

[0052] In addition, the installation frame 1 is configured to include a U-shaped frame 11 and a strip frame 12, and the U-shaped frame 11 and the strip frame 12 can be assembled together. A mounting groove 14 is provided on one side of the U-shaped frame 11 facing the mounting area 13 in the installation frame 1, and the edge of the light source structure 2 can be inserted into the mounting groove 14. In this way, when assembling the backlight module 10, the mounting groove 14 on the U-shaped frame 11 can be used to limit the light source structure 2. The light source structure 2 is first pushed into the U-shaped frame 11 along the mounting groove 14 in a push-pull manner. The edge of the light source structure 2 is fixed internally, and then the strip frame 12 and the U-shaped frame 11 are spliced ​​together to realize that the strip frame 12 and the U-shaped frame 11 jointly limit and fix the light source structure 2. This not only greatly improves the operability of assembling the installation frame 1 and the light source structure 2, and reduces the assembly difficulty of the backlight module 10, but also the installation frame 1 only needs to assemble the U-shaped frame 11 and the strip frame 12 together. The installation frame 1 is not easy to deform, and the assembly error is smaller, which is conducive to improving the optical performance of the backlight module 10.

[0053] In some embodiments, the mounting frame 1 is a metal part, that is, the U-shaped frame 11 and the strip frame 12 are both metal parts. Compared with plastic parts, metal parts have higher mechanical strength and are not easily deformed, which is conducive to improving the structural stability of the mounting frame 1, and further improving the optical performance of the backlight module 10. As an example, the U-shaped frame 11 and the strip frame 12 are both aluminum metal parts. Compared with other metals, aluminum metal is not only low in cost, but also relatively small in weight, which is conducive to achieving lightweight backlight module 10.

[0054] In some embodiments, reference Figure 2 and Figure 3 The U-shaped frame 11 is an integrally formed structure. By setting the U-shaped frame 11 as an integrally formed structure, the mechanical strength of the U-shaped frame 11 is improved. In this way, when the backlight module 10 is assembled, when the light source structure 2 is pushed into the U-shaped frame 11 along the mounting groove 14, the U-shaped frame 11 is easier to deform.

[0055] In some embodiments, reference Figure 2 and Figure 3 The two ends of the U-shaped frame 11 are respectively connected to the two ends of the strip frame 12. As an example, the two ends of the U-shaped frame 11 and the two ends of the strip frame 12 can be at least one of a clamping connection, a screw connection and a welding connection.

[0056] In some embodiments, reference Figures 4 to 8, the light source structure 2 includes a light emitting component 21, the mounting groove 14 includes a first mounting groove 141, and the edge of the light emitting component 21 is inserted into the first mounting groove 141. The light emitting component 21 refers to a structural component that can emit light, that is, the light emitting component 21 includes a light source. When the light source structure 2 includes the light emitting component 21, the mounting groove 14 correspondingly includes the first mounting groove 141, and the light emitting component 21 is inserted into the first mounting groove 141 to fix the light emitting component 21.

[0057] In some embodiments, reference Figures 4 to 8 The light-emitting component 21 includes a lamp board 211, and the lamp board 211 is used as a light source to emit light. Specifically, the lamp board 211 includes a conductive plate 2111 and lamp beads 2112, and the lamp beads 2112 are arranged on the first surface 21111 of the conductive plate 2111 and are conductively connected to the conductive plate 2111. Usually, the side of the light-emitting component 21 where the lamp beads 2112 are located is the light-emitting side. Along the thickness direction of the conductive plate 2111, the conductive plate 2111 has two side surfaces opposite to each other, and one side surface is the first surface 21111. The lamp beads 2112 are arranged on the first surface 21111, for example, the lamp beads 2112 are attached to the first surface 21111. The number of lamp beads 2112 on the first surface 21111 can be one or more. When the number of lamp beads 2112 is multiple, multiple lamp beads 2112 are arranged on the first surface 21111 at intervals. As an example, a plurality of lamp beads 2112 are arranged at equal intervals on the first surface 21111, and the spacing between the lamp beads 2112 is less than 15 mm. The lamp beads 2112 arranged on the first surface 21111 are conductively connected to the conductive plate 2111, and the lamp beads 2112 can be powered by the conductive plate 2111, so as to light up the lamp beads 2112. As an example, the conductive plate 2111 is an aluminum substrate, which is a single-board single-sided fabric single-sided wiring design, and the lamp beads 2112 are LED lamps. Optionally, the lamp beads 2112 are mini lamp beads whose diameter or the diameter of the inscribed circle is less than or equal to 1 mm.

[0058] In some embodiments, reference Figures 4 to 8The light-emitting component 21 also includes a reflective sheet 212, which is used to reflect light. Specifically, the reflective sheet 212 is attached to the first surface 21111 and a avoidance hole corresponding to the lamp bead 2112 is opened on the reflective sheet 212 (not shown) for the lamp bead 2112 to pass through. The light emitted by the lamp bead 2112 as a point light source will be projected in different directions. By attaching the reflective sheet 212 to the first surface 21111 and opening a avoidance hole on the reflective sheet 212 to avoid the lamp bead 2112, the light that would originally be projected on the first surface 21111 will be reflected by the reflective sheet 212 and projected to the light-emitting side, thereby increasing the amount of light output. As an example, the material of the reflective sheet 212 is, for example, polyethylene terephthalate (PET).

[0059] In some embodiments, the edge of the light emitting component 21 is interference fit with the first mounting groove 141. The light emitting component 21 is clamped and fixed by the interference fit between the light emitting component 21 and the first mounting groove 141, thereby improving the stability of the light emitting component 21, reducing the risk of displacement between the light emitting component 21 and the mounting frame 1, and improving the optical performance of the backlight module 10.

[0060] In some embodiments, reference Figures 4 to 8 The side wall of the first mounting groove 141 that is away from the reflective sheet 212 extends toward the mounting area 13 to form a support boss 1411, and the light-emitting component 21 is fixedly connected to the support boss 1411. By using the support boss 1411 to fix the light-emitting component 21, the stability of the light-emitting component 21 is improved, the risk of displacement between the light-emitting component 21 and the mounting frame 1 is reduced, and the optical performance of the backlight module 10 is improved. The side surface of the conductive plate 2111 that is opposite to the first surface 21111 is the second surface (not shown). When the light-emitting component 21 is fixedly connected to the support boss 1411, the second surface contacts the surface of the support boss 1411.

[0061] In some embodiments, the light emitting component 21 is fixedly connected to the support boss 1411 by a fastener. In detail, a first through hole is provided on the support boss 1411, and a second through hole is provided on the light emitting component 21, the first through hole corresponds to the second through hole, and the fastener is inserted into the first through hole and the second through hole. The fastener includes at least one of a screw and a rivet. As an example, the fastener includes a screw, and at least one of the first through hole and the second through hole is a threaded hole. Of course, in other embodiments, the light emitting component 21 and the support boss 1411 can also be fixedly connected by welding or bonding.

[0062] In some embodiments, reference Figures 4 to 8, the light source structure 2 also includes a light homogenizing component 22, which refers to a structural component that can conduct light and make the light evenly distributed. The light homogenizing component 22 is located on the light-emitting side of the light-emitting component 21, so that the light emitted by the light-emitting component 21 can be conducted through the light homogenizing component 22. That is to say, the light homogenizing component 22 also has a light-entering side and a light-emitting side. The light-emitting side of the light homogenizing component 22 is the side of the light homogenizing component 22 that is away from the light-emitting component 21, that is, the light-emitting component 21 is located on the light-entering side of the light homogenizing component 22. Correspondingly, the mounting groove 14 also includes a second mounting groove 142. Along the thickness direction of the backlight module 10, the first mounting groove 141 and the second mounting groove 142 are spaced apart, and the edge of the light homogenizing component 22 is inserted into the second mounting groove 142. When the light source structure 2 further includes a light homogenizing component 22 , the mounting groove 14 correspondingly includes a second mounting groove 142 . The second mounting groove 142 is independent of the first mounting groove 141 . The light homogenizing component 22 is independently inserted into the second mounting groove 142 to achieve separate fixation of the light homogenizing component 22 .

[0063] In some embodiments, reference Figures 4 to 8 , the light homogenizing component 22 includes a diffuser 221. The diffuser 221 is used to convert a point light source or a line light source into a uniform surface light source, thereby providing a uniform lighting effect. As an example, the material of the diffuser 221 is a polymer material, such as polycarbonate (PC), polymethyl methacrylate (PMMA), etc., which have high optical transparency and good mechanical strength. Optionally, the diffuser 221 is a surface microstructure type or a particle scattering type. For the surface microstructure type diffuser 221, it scatters light by forming tiny concave-convex structures on the surface of the plate, while for the particle scattering type diffuser 221, tiny particles are dispersed in a resin layer made of a polymer material, so that the light is scattered multiple times when passing through, thereby achieving a homogenization effect.

[0064] In some embodiments, reference Figures 4 to 8 , the light homogenizing component 22 also includes an optical film 222, which is located on the side of the diffuser 221 away from the light-emitting component 21, that is, the optical film 222 is located on the light-emitting side of the diffuser 221. The optical film 222 is mainly used to improve the display effect. As an example, the optical film 222 is one of a diffusion film, a brightness enhancement film, a polarizer and a quantum dot film. Generally, different types of optical films 222 have different functions. For example, the diffusion film is used to evenly distribute light, the brightness enhancement film is used to increase the brightness by reflecting and refracting light, the polarizer is used to control the direction of light, and the quantum dot film is used to improve color performance and efficiency. The number of optical films 222 in the light homogenizing component 22 can be one or more. When the number of optical films 222 is multiple, the types of the multiple optical films 222 can be the same or different.

[0065] In some embodiments, reference Figures 4 to 8 , the second mounting groove 142 is a U-shaped groove, and the width H1 of the second mounting groove 142 is greater than the total thickness H2 of the diffuser plate 221 and the optical film 222. Since the edge of the light homogenizing component 22 is used to be inserted into the second mounting groove 142, by setting the width H1 of the second mounting groove 142 to be greater than the total thickness H2 of the diffuser plate 221 and the optical film 222, when assembling the light homogenizing component 22, the diffuser plate 221 can be inserted into the second mounting groove 142 first, and then the optical film 222 can be inserted into the second mounting groove 142, and the optical film 222 can be stacked and laid on the surface of the diffuser plate 221, thereby reducing the difficulty of installing the optical film 222. As an example, the difference Δ between H1 and H2 is greater than 0 and less than 0.5 mm. Within this range, not only is the installation difficulty of the optical film 222 low, but the second mounting groove 142 can also limit the optical film 222. Optionally, 0.35mm≤Δ≤0.45mm. Within this range, the optical film 222 can be ensured not to be easily scratched, and the second mounting groove 142 can well limit the optical film 222 to prevent the optical film 222 from moving, warping and deforming. As an example, Δ is equal to 0.35mm, 0.37mm, 0.39mm, 0.41mm, 0.43mm or 0.45mm. It should be noted here that when the number of optical films 222 is multiple, H2 is the total thickness of the diffuser 221 and all optical films 222. The width H1 of the second mounting groove 142 refers to the distance between the two side walls of the second mounting groove 142.

[0066] In some embodiments, reference Figure 8 Along the thickness direction of the backlight module 10 , the bar frame 12 is also provided with a first mounting groove 141 and a second mounting groove 142 , and the first mounting groove 141 and the second mounting groove 142 are spaced apart from each other.

[0067] According to the second aspect of the embodiment of the present application, referring to Fig. 9 , providing an assembly method of a backlight module 10, comprising:

[0068] S1, providing a U-shaped frame 11, wherein a mounting groove 14 is provided on the inner side of the U-shaped frame 11;

[0069] S2, providing a light source structure 2, pushing the light source structure 2 into the inner side of the U-shaped frame 11 along the mounting groove 14 and inserting the edge of the light source structure 2 into the mounting groove 14;

[0070] S3 , providing a strip frame 12 , and assembling the strip frame 12 and the U-shaped frame 11 together to form a mounting frame 1 surrounding the light source structure 2 .

[0071] The assembly method of the backlight module 10 provided in the embodiment of the present application first inserts the light source structure 2 into the U-shaped frame 11 in a push-pull manner. During this process, the U-shaped shape and the installation groove 14 of the U-shaped frame 11 can assist in cooperating to play a role of limiting guidance, thereby greatly improving the operability of the installation of the light source structure 2. Thereafter, the strip frame 12 and the U-shaped frame 11 are assembled together to form the installation frame 1, which simplifies the entire assembly process, thereby helping to improve the product quality and production efficiency of the backlight module 10.

[0072] In some embodiments, the light source structure 2 includes a light emitting component 21, the mounting groove 14 includes a first mounting groove 141, and pushing the light source structure 2 into the inner side of the U-shaped frame 11 along the mounting groove 14 and inserting the edge of the light source structure 2 into the mounting groove 14 includes: pushing the light emitting component 21 into the inner side of the U-shaped frame 11 along the first mounting groove 141 and inserting the edge of the light emitting component 21 into the first mounting groove 141. The assembly process is simple, which is conducive to improving the product quality and production efficiency of the backlight module 10.

[0073] In some embodiments, the light source structure 2 further includes a light homogenizing component 22, and the mounting groove 14 further includes a second mounting groove 142. Pushing the light source structure 2 along the mounting groove 14 into the inner side of the U-shaped frame 11 and inserting the edge of the light source structure 2 into the mounting groove 14 includes: pushing the light homogenizing component 22 into the inner side of the U-shaped frame 11 along the second mounting groove 142 and inserting the edge of the light homogenizing component 22 into the second mounting groove 142. The assembly process is simple, which is conducive to improving the product quality and production efficiency of the backlight module 10.

[0074] In some embodiments, the light homogenizing component 22 includes a diffuser plate 221 and an optical film 222. The installation process of the light homogenizing component 22 includes: pushing the diffuser plate 221 into the inner side of the U-shaped frame 11 along the second mounting groove 142 and inserting the edge of the diffuser plate 221 into the second mounting groove 142, and then inserting the optical film 222 into the second mounting groove 142 along the second mounting groove 142.

[0075] In some embodiments, the assembling method of the backlight module 10 is used to assemble the backlight module 10 provided in the first aspect.

[0076] According to the third aspect of the embodiment of the present application, referring to Figure 2 , a display device 100 is provided, and the display device 100 includes the above-mentioned backlight module 10.

[0077] The display device 100 includes the above-mentioned backlight module 10. The display device 100 has all the beneficial effects of the above-mentioned backlight module 10, and the embodiments of the present application will not be described in detail here.

[0078] In some embodiments, reference Figure 2The display device 100 further includes a display panel 20, which is located on the light-emitting side of the backlight module 10. It can be understood that when the light source structure 2 of the backlight module 10 includes a light-emitting component 21 and a light-homogenizing component 22, the light-emitting component 21, the light-homogenizing component 22 and the display panel 20 are sequentially arranged along the light-emitting direction of the light in the display device 100, wherein the light-homogenizing component 22 is located between the light-emitting component 21 and the display panel 20. When the display device 100 is working, the light-emitting component 21 emits light, which is converted into a uniform surface light source by the light-homogenizing component 22 and then projected onto the display panel 20 for display. As an example, the display panel 20 is a liquid crystal panel.

[0079] In some embodiments, one side surface of the mounting frame 1 is formed as a support surface 15, and the display panel 20 covers the backlight module 10 and is supported on the support surface 15. Since the display panel 20 is located on the light-emitting side of the backlight module 10, the support surface 15 is formed on a side surface of the mounting frame 1 corresponding to the light-emitting side of the backlight module 10. By arranging the display panel 20 to be supported on the support surface 15, compared with the method of inserting the display panel 20 into the mounting groove 14, the risk of the display panel 20 being scratched can be greatly reduced, especially when the mounting frame 1 is a metal part.

[0080] In some embodiments, the display panel 20 is bonded to the support surface 15. Optionally, the display panel 20 is bonded together by double-sided cushioning foam, and the thickness of the double-sided cushioning foam is 0.85 mm to 0.9 mm. As an example, the thickness of the double-sided cushioning foam is 0.85 mm, 0.86 mm, 0.87 mm, 0.88 mm, 0.89 mm or 0.9 mm.

[0081] In some embodiments, the light source structure 2 is spaced from the display panel 20, and the spacing distance between the light source structure 2 and the display panel 20 is greater than 0 and less than or equal to 2.1 mm. In the case where the light source structure 2 includes a light emitting component 21 and a light homogenizing component 22, the spacing distance between the light source structure 2 and the display panel 20 is the distance between the light homogenizing component 22 and the display panel 20. In the case where the light homogenizing component 22 includes a diffuser 221 and an optical film 222, the spacing distance between the light source structure 2 and the display panel 20 is the distance between the optical film 222 and the display panel 20.

[0082] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0083] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0084] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0085] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A backlight module, characterized in that: include: An installation frame, the installation frame comprising a U-shaped frame and a strip frame, the U-shaped frame and the strip frame are assembled together to enclose a hollow installation area, and a mounting groove is provided on one side of the U-shaped frame facing the installation area; A light source structure is located in the installation area and an edge of the light source structure is inserted into the installation groove.

2. The backlight module according to claim 1, characterized in that: The light source structure includes a light emitting component, the mounting groove includes a first mounting groove, and the edge of the light emitting component is inserted into the first mounting groove.

3. The backlight module according to claim 2, characterized in that: The light emitting component comprises a lamp board, and the lamp board comprises a conductive plate and lamp beads. The lamp beads are arranged on a first surface of the conductive plate and are conductively connected to the conductive plate.

4. The backlight module according to claim 3, characterized in that: The light emitting component further comprises a reflective sheet, which is attached to the first surface and has avoidance holes corresponding to the lamp beads for the lamp beads to pass through.

5. The backlight module according to claim 4, characterized in that: The side wall of the first mounting groove facing away from the reflector sheet extends toward the mounting area to form a supporting boss, and the light-emitting component is fixedly connected to the supporting boss; and / or the edge of the light-emitting component is interference-fitted with the first mounting groove.

6. The backlight module according to claim 2, characterized in that: The light source structure also includes a light-evening component located on the light-emitting side of the light-emitting component, and the mounting groove also includes a second mounting groove. The first mounting groove and the second mounting groove are spaced apart along the thickness direction of the backlight module, and the edge of the light-evening component is inserted into the second mounting groove.

7. The backlight module according to claim 6, characterized in that: The light homogenizing component includes a diffusion plate.

8. The backlight module according to claim 7, characterized in that: The light homogenizing component further includes an optical film, and the optical film is located on a side of the diffusion plate away from the light-emitting component.

9. The backlight module according to claim 8, characterized in that: The second mounting groove is a U-shaped groove, and the width of the second mounting groove is greater than the total thickness of the diffusion plate and the optical film.

10. The backlight module according to claim 9, characterized in that: The difference between the width of the second mounting groove and the total thickness of the diffusion plate and the optical film is 0.35 mm to 0.45 mm.

11. The backlight module according to any one of claims 1 to 10, characterized in that: The U-shaped frame is integrally formed; and / or two ends of the U-shaped frame are respectively butted against two ends of the strip frame.

12. A method for assembling a backlight module, characterized in that: include: Providing a U-shaped frame, wherein an installation groove is provided on the inner side of the U-shaped frame; Providing a light source structure, pushing the light source structure into the inner side of the U-shaped frame along the mounting groove and inserting the edge of the light source structure into the mounting groove; A strip frame is provided, and the strip frame is assembled with the U-shaped frame to form a mounting frame surrounding the light source structure.

13. A display device, characterized in that: It comprises the backlight module according to any one of claims 1 to 11 or the backlight module assembled according to the method according to claim 12.

14. The display device according to claim 13, characterized in that: The display device further comprises a display panel, which is located at the light-emitting side of the backlight module. One side surface of the mounting frame is formed as a supporting surface, and the display panel covers the backlight module and is supported on the supporting surface.

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