Display apparatus

Abstract

The present application relates to the technical field of display and provides a display apparatus for improving the display quality of display apparatuses. The display apparatus can comprise a display panel and a backlight module. The display panel can be configured to display an image. The backlight module can be arranged on a side facing away from a display surface of the display panel. The backlight module can comprise a backplane, a light source, a diffusion plate and a transparent support member. The light source can be arranged on the side of the backplane close to the display panel. The diffusion plate can be arranged at intervals on the side of the light source close to the display panel. One end of the transparent support member can be connected to the backplane, and the other end thereof can abut against the diffusion plate. The outer contour of the cross section of the transparent support member can be hexagonal. The transparent support member can comprise six triangular prisms, side surfaces of the six triangular prisms can be successively connected end to end, and a gap can be formed between every two adjacent triangular prisms. Thus, the direction of light rays emitted by the light source into the transparent support member can be parallel to the direction of light rays emitted from the transparent support member, thereby improving the display quality of the display apparatus.

Description

Display device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent applications filed on January 2, 2024, with application number 202410003169.6; filed on January 2, 2024, with application number 202420006631.3; and filed on April 26, 2024, with application number 202410511729.9, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of display technology, and in particular to a display device. Background Art

[0004] In the related art, when the light source of the display device is irradiated onto the support member used to support the diffuser plate, the propagation path of the light emitted from the support member is changed due to reflection or refraction of the support member, resulting in uneven light distribution, thereby forming a dark shadow on the diffuser plate, thereby reducing the display quality of the display device. Summary of the Invention

[0005] According to some embodiments of the present application, a display device may include: a display panel and a backlight module; the display panel may be configured to display an image; the backlight module is arranged on a side of the display surface away from the display panel; the backlight module may include a back panel, a light source, a diffuser plate and a transparent support; the light source is arranged on a side of the back panel close to the display panel; the diffuser plate is spaced apart on a side of the light source close to the display panel; one end of the transparent support is connected to the back panel, and the other end abuts against the diffuser plate, the outer contour of the cross section of the transparent support is a hexagon, and the transparent support may include six triangular prisms, the side surfaces of the six triangular prisms are connected end to end in sequence, and there is a gap between two adjacent triangular prisms.

[0006] According to some embodiments of the present application, a display device may include a display panel and a backlight module; the display panel may be configured to display an image; the backlight module is arranged on a side of the display surface away from the display panel; the backlight module may include a backplane, a light source, a diffuser plate, and a transparent support; the light source is arranged on a side of the backplane close to the display panel; the diffuser plate is spaced apart on a side of the light source close to the display panel; the transparent support may include a first part and a second part, one end of the first part is connected to the backplane, and the other end is connected to the second part, the end of the second part away from the first part is in contact with the diffuser plate, and the cross-sectional area of ​​the first part gradually decreases along the direction from the backplane to the diffuser plate, and the cross-sectional area of ​​the second part gradually decreases along the direction from the diffuser plate to the backplane, and the minimum cross-sectional area of ​​the second part is the same as the minimum cross-sectional area of ​​the first part.

[0007] According to some embodiments of the present application, a display device may include: a back panel; a diffuser plate, the diffuser plate is arranged on one side of the back panel; a light source, the light source is arranged on the back panel, and the light emitting surface of the light source faces the diffuser plate; a diffuser plate support frame, the diffuser plate support frame is arranged between the back panel and the diffuser plate, and the diffuser plate support frame includes a base and a support member; the base includes a support platform; the support member is arranged on the support platform; the support member includes a support rod, the support rod has a cavity, and the cavity passes through two opposite end faces of the support rod along the axial direction of the support rod; the support rod is a prismatic structure, the support rod includes at least four side walls, and the number of the side walls is an even number; the at least four side walls are connected end to end in sequence and surround a cavity; the side wall includes an inner surface and an outer surface, the inner surface and the outer surface are parallel, and the thickness of each side wall is equal. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate some embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. In order to more clearly illustrate the solutions in some embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for the embodiments or related technology descriptions. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive work.

[0009] FIG1 is a schematic diagram of a supporting member in the related art;

[0010] FIG2 is a schematic diagram of a display device according to some embodiments of the present application;

[0011] FIG3 is a cross-sectional view of a display device according to some embodiments of the present application;

[0012] FIG4 is a top view of a transparent support member provided according to some embodiments of the present application;

[0013] FIG5 is a top view of a transparent support member provided according to some other embodiments of the present application;

[0014] FIG6 is a partial perspective view of a display device according to some embodiments of the present application;

[0015] FIG7 is a partial top view of a display device according to some embodiments of the present application;

[0016] FIG8 is a partial cross-sectional view of a display device according to some embodiments of the present application;

[0017] FIG9 is a partial perspective view of a display device according to some other embodiments of the present application;

[0018] FIG10 is a partial top view of a display device according to some other embodiments of the present application;

[0019] FIG11 is a cross-sectional view of a display device according to some embodiments of the present application;

[0020] FIG12 is a schematic diagram of a transparent support member provided according to some embodiments of the present application;

[0021] FIG13 is a partial perspective view of a display device according to some embodiments of the present application;

[0022] FIG14 is a partial top view of a display device according to some embodiments of the present application;

[0023] FIG15 is a partial cross-sectional view of a display device according to some embodiments of the present application;

[0024] FIG16 is a partial perspective view of a display device according to some other embodiments of the present application;

[0025] FIG17 is a partial top view of a display device according to some other embodiments of the present application;

[0026] FIG18 is a partial perspective view of a display device according to some other embodiments of the present application;

[0027] FIG19 is a first structural diagram of a display device according to some embodiments of the present application;

[0028] FIG20 is a second structural diagram of a display device according to some embodiments of the present application;

[0029] FIG21 is a schematic structural diagram of a diffusion plate support frame from a first perspective according to some embodiments of the present application;

[0030] FIG22 is a schematic structural diagram of a diffusion plate support frame according to some embodiments of the present application from a second perspective;

[0031] FIG23 is a schematic structural diagram of a diffusion plate support frame according to some embodiments of the present application from a third perspective;

[0032] FIG24 is a diagram illustrating the propagation path of light when light passes through a supporting rod of a regular quadrangular prism structure according to some embodiments of the present application;

[0033] FIG25 is a diagram illustrating the propagation path of light when light passes through a support rod having a non-regular hexagonal prism structure according to some embodiments of the present application;

[0034] FIG26 is a cross-sectional view of a support rod having a non-regular hexagonal prism structure according to some embodiments of the present application;

[0035] FIG27 is a diagram illustrating the propagation path of a light ray at a first angle when passing through a support rod of a regular hexagonal prism structure according to some embodiments of the present application;

[0036] FIG28 is a diagram illustrating the propagation path of light at a second angle when passing through a support rod of a regular hexagonal prism structure according to some embodiments of the present application;

[0037] FIG29 is a diagram illustrating the propagation path of light at a third angle when passing through a support rod of a regular hexagonal prism structure according to some embodiments of the present application;

[0038] FIG30 is a diagram illustrating the propagation path of light at a first angle when passing through a support rod of a regular octagonal prism structure according to some embodiments of the present application;

[0039] FIG31 is a diagram illustrating the propagation path of light at a second angle when passing through a support rod of a regular octagonal prism structure according to some embodiments of the present application;

[0040] FIG32 is a diagram illustrating the path of light when light passes through a support rod of a solid regular hexagonal prism structure according to some embodiments of the present application;

[0041] FIG33 is a diagram illustrating the propagation path of light when light passes through a support rod of a solid non-regular hexagonal prism structure according to some embodiments of the present application;

[0042] FIG34 is a first cross-sectional view of a support rod having a regular hexagonal prism structure according to some embodiments of the present application;

[0043] FIG35 is a second cross-sectional view of a support rod having a regular hexagonal prism structure according to some embodiments of the present application;

[0044] Figure 36 is a schematic structural diagram of an elastic supporting member provided according to some embodiments of the present application.

[0045] Figure numerals: 100, display device; 101, display panel; 102, backlight module; 1, back plate; 11, clamping portion; 12, positioning portion; 2, light source; 3, diffusion plate; 4, transparent support member; 41, triangular prism; 42, gap; 43, cavity; 41', first part; 42', second part; 43', boss; 4', support member; 40, support rod; 401, first end; 402, second end; 403, cavity; 404, side wall; 405, inner surface; 406, outer surface; 41", transparent filling body; 5, substrate; 51, first clamping hole; 52, second clamping hole; 53, positioning hole; 6, elastic supporting member; 61, deformation portion; 62, connecting portion; 61', elastic connecting portion; 62', elastic supporting portion; 621, Middle section; 622, inclined connecting section; 63', buffer gap; 7, reflector; 8, base. DETAILED DESCRIPTION

[0046] In order to be able to more clearly understand the purpose, features, embodiments and advantages of the present application, the scheme of the present application will be further described below. It should be further noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. It should be noted that the brief description of the terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of the present application. Unless otherwise stated, these terms should be understood according to their common and usual meanings.

[0047] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0048] 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 number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0049] The term "and / or" refers to and encompasses any and all possible combinations of one or more of the listed items. The term "and / or" describes an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0050] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a communication between the two elements. Among them, "fixed connection" means that they are connected to each other and the relative position relationship after connection remains unchanged. In addition, the directional terms mentioned in the embodiments of the present application, such as "inside" and "outside", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, 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 cannot be understood as a limitation on the embodiments of the present application. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] In the description of the embodiments of the present application, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element limited by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In the absence of further restrictions, an element limited by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0052] The following will be combined with the drawings of some embodiments of the present application to clearly and completely describe the schemes in the embodiments of the present application. Obviously, the embodiments described are only some of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0053] In the related art, a liquid crystal display is a non-active light-emitting electronic device that does not have luminous properties itself and must rely on the light source emitted from the backlight module to achieve display performance. Therefore, the brightness of the liquid crystal display is determined by its backlight module. According to the incident position of the light source, the backlight module can be divided into: a direct-type backlight module and an edge-type backlight module. The direct-type backlight module may include a backplate, a light source and a diffuser. The light source is arranged on the backplate. In order to ensure uniform mixing of the light emitted by the light source, a certain mixing distance needs to be maintained between the backplate and the diffuser. When the direct-type backlight module is placed horizontally, the diffuser is prone to bending and deformation under the action of its own gravity. Therefore, a diffuser support frame is provided between the backplate and the diffuser to prevent deformation of the diffuser. At present, the diffuser support frame includes a base and a support portion (also called a support member). The base is connected to the backplate. The support portion abuts against the diffuser. When the diffuser is deformed, the support portion supports the diffuser to prevent bending and deformation of the diffuser.

[0054] However, when the light emitted from the backplane light source passes through the supporting part, the supporting part will change the propagation path of the light. That is, when the light source is irradiated on the supporting part used to support the diffuser plate, due to reflection or refraction of the supporting part, the propagation path of the light emitted from the supporting part will be different from the original propagation path of the light, resulting in uneven light distribution, thereby forming a dark shadow on the diffuser plate, and further reducing the display quality of the display device.

[0055] Please refer to Figure 1, which is a schematic diagram of a support portion in the related art. The cross-section of the support portion in the related art is formed into a circular shape. When the light emitted by the light source passes through the support portion, the direction of the emitted light tends to converge, resulting in uneven distribution of the light emitted from the support portion.

[0056] Based on this, an embodiment of the present application provides a display device.

[0057] Please refer to Figures 2 and 3. Figure 2 is a schematic diagram of a display device provided according to some embodiments of the present application, and Figure 3 is a cross-sectional view of a display device provided according to some embodiments of the present application. The display device 100 can be any one of a television, a laptop computer, a desktop computer, a tablet computer, and a camera, or any display device with an image display function. This application does not limit the specific type of display device. The display device 100 can be a liquid crystal display device. The display device 100 may include a display panel 101 and a backlight module 102.

[0058] The display panel 101 may be configured to display an image, and the backlight module 102 may include a back plate 1. The back plate 1 may be disposed on a side away from a display surface of the display panel 101.

[0059] The display panel 101 can be configured to display text, images, and other image information. The display panel 101 can include a display area and a circuit board located on one side of the display area, and the circuit board is used to drive and display the entire display panel 101.

[0060] The display panel 101 is a component of the display device 100 and may include a liquid crystal display panel, a color filter (CF) substrate for the liquid crystal display panel, a thin film transistor (TFT) substrate (also known as an array substrate), and a liquid crystal (LC) layer, with the LC layer located between the CF substrate and the array substrate. The TFT substrate may be provided with data lines and scan lines. The powering of the data and scan lines controls the orientation of the liquid crystal molecules, thereby directing light from the light source 2 through the CF substrate and generating a predetermined color image.

[0061] Since the liquid crystal display panel itself cannot emit light, in order for the display device 100 to display normally, the display device 100 may further include a backlight module 102. The backlight module 102 may include a backplane 1 and a light source 2. The backplane 1 may be disposed on a side facing away from the display surface of the display panel 101 and may provide support and bearing. The light source 2 is used to generate light and may be configured to provide backlight to the display panel 101.

[0062] It is understandable that the backlight module 102 is used to provide sufficient brightness and evenly distributed backlight for the display panel 101 , and the display panel 101 can modulate the backlight as needed to display different images.

[0063] In some embodiments, the backplane 1 may be an aluminum plate, a printed circuit board (PCB), etc. The backplane 1 may be configured to support the light source 2 and may also dissipate heat for the light source 2. The light source 2 may be a light-emitting diode (LED), a submillimeter light-emitting diode (Mini-Light-Emitting Diode, MiniLED), or a micron-level light-emitting diode (Micro-Light-Emitting Diode, MicroLED).

[0064] In some embodiments, there may be multiple light sources 2 , and the multiple light sources 2 may be disposed on a side of the back plate 1 facing the display panel 101 and spaced apart so that the light sources 2 can provide backlight for the display panel 101 .

[0065] In some embodiments, the light source 2 may be a lamp bead or a light strip, and a plurality of light sources 2 may be fixed on the back panel 1 by means of snap connection, thread connection, or the like.

[0066] The backlight module 102 may further include a diffuser plate 3. The diffuser plate 3 may be positioned on the side of the light source 2 closest to the display panel 101, at a predetermined distance from the light source 2. Specifically, the diffuser plate 3 is spaced apart from the light source 2 on the side closest to the display panel 101. This distance ensures sufficient light mixing between the multiple light sources 2. Because the diffuser plate 3 dissipates heat from incident light, the light passing through the diffuser plate 3 is more uniform, thereby achieving more uniform brightness across the display device 100 and reducing brightness unevenness.

[0067] In some embodiments, the diffuser plate 3 may be provided with scattering particle materials. When light enters the scattering particle materials, the light will be continuously refracted and reflected, thereby achieving the effect of breaking up the light and achieving the effect of uniform light.

[0068] The diffuser plate 3 can be formed by an extrusion process.

[0069] Continuing with Figure 3 , the backlight module 102 may further include a reflective sheet 7 . The reflective sheet 7 may be disposed on the side of the backplate 1 near the display panel 101 . The reflective sheet 7 reflects and directs light emitted by the light source 2 toward the surface of the display panel 101 , thereby improving the brightness and contrast of the display device 100 and making the image displayed by the display device 100 clearer. The reflective sheet 7 also helps control the direction of light, ensuring that it is evenly illuminated across the entire surface of the display panel 101 , thereby enhancing the display quality of the display device 100 .

[0070] Continuing with Figure 3, in some embodiments, the backlight module 102 may further include a transparent support member 4. One end of the transparent support member 4 abuts the diffuser plate 3, and the other end is connected to the backplate 1. The provision of the transparent support member 4 allows light emitted by the light source 2 to pass through the transparent support member 4 and prevents the diffuser plate 3 from collapsing due to its own weight, thereby ensuring the diffusion effect and reliability of the diffuser plate 3.

[0071] It should be noted that the material of the transparent support 4 may include one or more of epoxy resin, polystyrene, methyl methacrylate-styrene copolymer, polymethyl, methyl acrylate and the like.

[0072] Please refer to Figures 3 and 4. Figure 4 is a top view of a transparent support member provided according to some embodiments of the present application. The outer contour of the cross section of the transparent support member 4 can be a hexagon. In some embodiments, the outer contour of the cross section of the transparent support member 4 can be a regular hexagon or an irregular hexagon.

[0073] In some embodiments, the transparent support 4 may include six triangular prisms 41. The side surfaces of the six triangular prisms 41 are sequentially connected end to end, with a gap 42 between adjacent triangular prisms 41. In some embodiments, the side surfaces of the six triangular prisms 41 may be the outer surface of the transparent support 4, and the outer contour of the orthographic projection of the side surfaces of the six triangular prisms 41 on the back plate 1 may be a hexagon. There is a gap between any two triangular prisms 41, that is, there is a gap between the opposing side surfaces of two adjacent triangular prisms 41.

[0074] When light emitted by the light source 2 is directed toward the transparent support 4, the light may first undergo a first refraction in the first triangular prism 41, then be directed toward the gap 42 between the adjacent first and second triangular prisms 41, and then be directed toward the second triangular prism 41, thereby undergoing a second refraction. It may then undergo a third refraction in the second triangular prism 41, and finally be directed toward the gap 42 between the adjacent second and third triangular prisms 41, and then be directed toward the third triangular prism 41, thereby undergoing a fourth refraction. It may then undergo a fifth refraction in the third triangular prism 41, before being directed out of the transparent support 4. Thus, the direction of the light emitted by the light source 2 entering the transparent support 4 can be changed through multiple refractions, so that the direction of the light emitted by the light source 2 entering the transparent support 4 can be parallel to the direction of the light emitted from the transparent support 4. This ensures that the light emitted by the light source 2 is evenly distributed after passing through the transparent support 4, thereby improving the shadow phenomenon on the diffuser plate 3 and improving the display quality of the display device 100.

[0075] It should be noted that the aforementioned parallelism is approximately parallel and may have a certain range of error.

[0076] According to the display device 100 of some embodiments of the present application, by making the outer contour of the cross section of the transparent support member 4 hexagonal, and connecting the side surfaces of the six triangular prisms 41 of the transparent support member 4 end to end in sequence, and providing a gap 42 between two adjacent triangular prisms 41, the direction of the light emitted by the light source 2 into the transparent support member 4 can be made parallel to the direction of the light emitted from the transparent support member 4, thereby reducing the phenomenon of the light emitted from the transparent support member 4 forming a shadow on the diffuser plate 3, allowing the light to evenly illuminate the surface of the entire display panel 101, thereby improving the display effect and display quality of the display device 100.

[0077] In some embodiments, the backlight module 102 may include multiple transparent support members 4. The multiple transparent support members 4 are spaced apart on the back panel 1. Since the transparent support members 4 can change the direction of light emitted from the transparent support members 4, the positions of the multiple transparent support members 4 can be changed based on the rationality of the support for the diffuser plate 3 or the actual layout requirements of the display device 100, thereby further optimizing the structural design of the display device 100.

[0078] Continuing to refer to Figures 3 and 4, in some embodiments, the cross-section of the triangular prism 41 can be an equilateral triangle. This ensures that the transparent support 4 can better change the direction of the light emitted from the light source 2 toward the transparent support 4, thereby ensuring that the light emitted from the transparent support 4 is evenly distributed, thereby facilitating the display quality of the display device 100 and improving the user experience.

[0079] It should be noted that the cross section of the triangular prism 41 may also be formed as an irregular triangle, and this application does not impose any limitation on this.

[0080] Continuing to refer to Figures 3 and 4, in some embodiments, the outer contour of the cross section of the transparent support 4 can be a regular hexagon. This allows the direction of light from the light source 2 entering the transparent support 4 from all angles to be parallel to the direction of light emitted from the transparent support 4, thereby further ensuring uniform distribution of light emitted from the transparent support 4. This further helps to ensure the display quality of the display device 100 and improve the user experience.

[0081] Continuing to refer to FIG3 and FIG4 , in some embodiments, the transparent support member 4 may have a cavity 43. The side edges of the six triangular prisms 41 adjacent to the cavity 43 are spaced apart around the circumference of the cavity 43. In some embodiments, the side edges of the six triangular prisms 41 adjacent to the cavity 43 may be evenly spaced apart around the circumference of the cavity 43. The side edges of the six triangular prisms 41 adjacent to the cavity 43 may also be unevenly spaced apart around the circumference of the cavity 43. This arrangement can prevent the light emitted from the transparent support member 4 from converging, ensure that the light emitted from the transparent support member 4 is evenly distributed, and thus help to ensure the display quality of the display device 100.

[0082] Please refer to Figure 5, which is a top view of a transparent support member according to other embodiments of the present application. In some embodiments, the side edges of the six triangular prisms 41 that are not adjacent to each other and are close to the cavity 43 can be connected. This arrangement helps to ensure the display quality of the display device 100.

[0083] Please refer to Figure 6, which is a partial stereoscopic view of a display device provided according to some embodiments of the present application. In some embodiments, the backlight module 102 may further include a substrate 5. The substrate 5 may be located on a side of the back plate 1 close to the display panel 101 and detachably connected to the back plate 1. The transparent support member 4 is provided on a side of the substrate 5 close to the display panel 101. In some embodiments, the substrate 5 and the back plate 1 may be detachably connected by means of snap-fitting, fastener connection, etc. By making the substrate 5 connected to the transparent support member 4 detachably connected to the back plate 1, it is convenient to replace and repair the substrate 5 and the transparent support member 4, which is beneficial to reducing the maintenance cost of the display device 100 and improving the maintainability of the display device 100.

[0084] In some embodiments, the orthographic projection of the transparent support 4 on the back plate 1 can be located within the orthographic projection of the substrate 5 on the back plate 1. As a result, the transparent support 4 can increase the contact area with the back plate 1 through the substrate 5, so that the transparent support 4 can be better fixed on the back plate 1, and the possibility of the transparent support 4 breaking can be reduced.

[0085] In some embodiments, the transparent support member 4 and the substrate 5 may be integrally formed, which is beneficial for improving the assembly efficiency of the display device 100 .

[0086] Please refer to Figures 7 and 8. Figure 7 is a partial top view of a display device provided according to some embodiments of the present application, and Figure 8 is a partial cross-sectional view of a display device provided according to some embodiments of the present application. In some embodiments, a first latch hole 51 and a second latch hole 52 may be formed on the substrate 5 of another display device. The first latch hole 51 and the second latch hole 52 are connected, and the aperture of the first latch hole 51 is larger than the aperture of the second latch hole 52. A clamping portion 11 is formed on the back panel 1, and the clamping portion 11 is engaged with the second latch hole 52. In some embodiments, when the substrate 5 is connected to the back panel 1, the clamping portion 11 on the back panel 1 extends into the first latch hole 51. The clamping portion 11 extends into the second latch hole 52 through the connection between the first latch hole 51 and the second latch hole 52, so that the second latch hole 52 is engaged with the clamping portion 11, thereby connecting the substrate 5 to the back panel 1.

[0087] Thus, the base plate 5 and the back plate 1 can be detachably connected by the engagement between the engagement portion 11 and the second engagement hole 52 . This connection method is simple and easy to assemble, thereby improving the assembly efficiency of the display device 100 .

[0088] It should be noted that the back panel 1 may be provided with a first clamping hole 51 and a second clamping hole 52 , and the base plate 5 may be provided with a clamping member that is engaged with the second clamping hole 52 . This application does not impose any restrictions on this.

[0089] In some embodiments, the clamping portion 11 can be formed by stamping the back plate 1 . This configuration helps reduce the difficulty of manufacturing the back plate 1 .

[0090] Please continue to refer to Figures 7 and 8. In some embodiments, a positioning hole 53 may be further formed on the substrate 5. The positioning hole 53 is spaced apart from the first clamping hole 51 and the second clamping hole 52. A positioning portion 12 may be formed on the back panel 1. The positioning portion 12 is snap-fitted with the positioning hole 53. In some embodiments, when the substrate 5 is connected to the back panel 1, the snap-fitting portion 11 is first extended into the first clamping hole 51, and then the snap-fitting portion 11 is moved toward the second clamping hole 52. When the positioning portion 12 is snap-fitted with the positioning hole 53, the snap-fitting portion 11 and the second clamping hole 52 can be completed.

[0091] Therefore, the positioning portion 12 and the positioning hole 53 can cooperate to make the clamping portion 11 and the second clamping hole 52 directly assembled, which is conducive to reducing the difficulty of assembly and also can improve the reliability of the connection between the back plate 1 and the base plate 5.

[0092] It should be noted that the back plate 1 may be provided with a positioning hole 53 , and the base plate 5 may be provided with a clamping member that engages with the positioning hole 53 . This application does not impose any restrictions on this.

[0093] In some embodiments, the positioning portion 12 may also be formed by stamping the back plate 1 . This configuration helps reduce the difficulty of manufacturing the back plate 1 .

[0094] Please refer to Figures 9 and 10. Figure 9 is a partial stereoscopic view of a display device provided according to other embodiments of the present application, and Figure 10 is a partial top view of a display device provided according to other embodiments of the present application. In some embodiments, the backlight module 102 may further include an elastic support member 6. The elastic support member 6 has a first end and a second end relative to each other. The first end is connected to the substrate 5. The second end is connected to the transparent support member 4. The distance between the first end and the first end changes when the elastic support member 6 is subjected to pressure. In some embodiments, compression deformation may occur when the elastic support member 6 is subjected to pressure. The deformation can be restored after the external force is removed.

[0095] Therefore, when a user performs a touch operation or during transportation, the diffuser plate 3 moves toward the back plate 1, and the elastic support member 6 is compressed. Since the elastic support member 6 can deform, large fluctuations and deformations between the display panel 101 and the diffuser plate 3 can be avoided, thereby improving the structural stability of the display device 100. At the same time, the possibility of fracture of the transparent support member 4 can be reduced, which helps to increase the service life of the transparent support member 4.

[0096] In some embodiments, the elastic supporting member 6 can be detachably connected to the substrate 5 by means of a snap connection, a fastener connection, or the like, or can be fixedly connected to the substrate 5 by means of an adhesive, or the like, or the elastic supporting member 6 can be integrally formed with the substrate 5 and the transparent support member 4. In some embodiments, the elastic supporting member 6 can be made of a transparent material, for example, fiberglass.

[0097] Please continue to refer to Figures 9 and 10. In some embodiments, the elastic supporting member 6 may include a deforming portion 61 and a connecting portion 62. The transparent support member 4 can be arranged on a side of the connecting portion 62 close to the display panel 101, and the deforming portion 61 is connected to both opposite ends of the connecting portion 62. The deforming portion 61 is arranged at the edge of the substrate 5, and the deforming portion 61 extends in a direction close to the diffuser plate 3. In this way, the space between the connecting portion 62 and the back plate 1 can be hollow, thereby increasing the range of deformation of the elastic portion. Since the deforming portion 61 is arranged at the edge of the substrate 5, the support capacity of the elastic supporting portion for the transparent support member 4 can be improved.

[0098] According to some embodiments of the present application, another display device is provided. The difference between this display device and the aforementioned display device lies in the structure of the transparent support member 4 included in the backlight module 102. Referring to Figure 11, the transparent support member 4 may include a first portion 41 and a second portion 42. One end of the first portion 41 is connected to the back plate 1, and the other end is connected to the second portion 42. The end of the second portion 42 away from the first portion 41 abuts against the diffuser plate 3. In some embodiments, the first portion 41 and the second portion 42 are arranged and connected in sequence in the direction from the back plate 1 to the diffuser plate 3, with the first portion 41 being used to connect to the back plate 1 and the second portion 42 being used to abut against the diffuser plate 3.

[0099] In the aforementioned alternative display device, in some embodiments, the cross-sectional area of ​​the first portion 41 may gradually decrease along the direction from the back plate 1 to the diffuser plate 3. The cross-sectional area of ​​the second portion 42 may gradually decrease along the direction from the diffuser plate 3 to the back plate 1. In some embodiments, the cross-sectional areas of the first portion 41 and the second portion 42 are both substantially parallel to the back plate 1, and the junction between the first portion 41 and the second portion 42 is the point where the cross-sectional areas of the first portion 41 and the second portion 42 are minimized. In some embodiments, the minimum cross-sectional area of ​​the second portion 42 is the same as the minimum cross-sectional area of ​​the first portion 41, allowing for a smooth connection between the first portion 41 and the second portion 42.

[0100] Thus, the contour of the orthographic projection of the transparent support member 4 on a plane perpendicular to the backplane 1 and the diffusion plate 3 may have depressions on opposite sides. When the light emitted by the light source 2 strikes the transparent support member 4, the principle of a concave lens can be utilized to propagate the light incident on the transparent support member 4 at a divergent and uniform angle. Furthermore, it can be ensured that the light emitted by the light source 2 is evenly distributed after passing through the transparent support member 4, improving the problem of shadow formation on the diffusion plate 3 and facilitating the improvement of the display quality of the display device 100.

[0101] According to another display device 100 of some embodiments of the present application, by making the cross-sectional area of the first portion 41 of the transparent support member 4 gradually decrease along the direction from the backplane 1 to the diffusion plate 3, and the cross-sectional area of the second portion 42 gradually decrease along the direction from the diffusion plate 3 to the backplane 1, when the light emitted by the light source 2 strikes the transparent support member 4, the principle of a concave lens can be utilized to propagate the light emitted by the light source 2 incident on the transparent support member 4 at a divergent and uniform angle. As a result, the phenomenon of shadow formation on the diffusion plate 3 by the light emitted from the transparent support member 4 can be reduced, enabling the light to evenly irradiate the entire surface of the display panel 101, which is conducive to improving the display effect and display quality of the display device 100.

[0102] Please refer to FIGS. 11 and 12. FIG. 12 is a schematic diagram of a transparent support member provided according to some embodiments of the present application. In some embodiments, the projection of the second portion 42 on the backplane 1 may be located within the projection of the first portion 41 on the backplane 1. That is to say, the maximum cross-sectional area of the second portion 42 is smaller than the maximum cross-sectional area of the first portion 41.

[0103] In some embodiments, the radius of curvature r of the side edge of the transparent support member 4 may satisfy: (2×(n + 1)×L) / sinα < r < ((n + 1)×L) / sinα. Here, n is the refractive index of the material used for the transparent support member 4, L is the distance between the transparent support member 4 and the light source 2, and α is the angle between the line connecting the outermost endpoints of the first portion 41 and the outermost endpoints of the second portion 42 and the plane perpendicular to the diffusion plate 3 and the backplane 1.

[0104] It should be noted that the material of the transparent support member 4 may still include one or more of epoxy resin, polystyrene, methyl methacrylate-styrene copolymer, polymethyl methacrylate, etc. n is the refractive index of the above-mentioned material used for the transparent support member 4. L may be the shortest distance between the transparent support member 4 and the light source 2. For example, L may be the distance between the center of the transparent support member 4 and the center of the light source 2.

[0105] Therefore, by restricting the radius of curvature of the side edge of the transparent support member 4, it can be ensured that the transparent support member 4 has a good light scattering effect, so that the light emitted from the transparent support member 4 can be evenly distributed, which is beneficial to ensuring the display quality of the display device 100 and improving the user experience.

[0106] Please continue to refer to FIGS. 11 and 12. In some embodiments, the length f of the side edge of the transparent support member 4 may satisfy: 0.9×D < f < D. Where D is the vertical distance between the reflector 7 and the diffusion plate 3. In some embodiments, the side edge of the transparent support member 4 may be an arc or composed of multiple line segments, and D is the shortest distance between the reflector 7 and the diffusion plate 3.

[0107] Therefore, by further restricting the length f of the side edge of the transparent support member 4, it can be ensured that the light emitted from the transparent support member 4 can be evenly distributed while ensuring the support effect on the diffusion plate 3, which is beneficial to further ensuring the display quality of the display device 100 and improving the user experience.

[0108] Please continue to refer to FIGS. 11 and 12. In some embodiments, one end of the second part 42 close to the diffusion plate 3 may have a boss 43. The outer surface of the boss 43 may be formed into a hemispherical surface. Thus, the contact between the boss 43 and the diffusion plate 3 is changed from surface contact to point contact, which can reduce the contact area with the diffusion plate 3, thereby reducing the friction between the transparent support member 4 and the diffusion plate 3 and avoiding damage to the diffusion plate 3 by the transparent support member 4, which is beneficial to improving the reliability of the support of the transparent support member 4.

[0109] It should be noted that the outer surface of the boss 43 may also be formed into other shapes, and the present application does not limit it.

[0110] Please refer to FIGS. 11-13. FIG. 13 is a partial perspective view of another display device provided according to some embodiments of the present application. In some embodiments, the backlight module 102 may further include a substrate 5. For the installation position and method of the substrate 5 in this display device, please refer to the description of the substrate 5 above, and details will not be repeated here. In some embodiments, the orthographic projection of the transparent support member 4 on the backplane 1 may be located within the orthographic projection of the substrate 5 on the backplane 1. Thus, the transparent support member 4 can increase the contact area with the backplane 1 through the substrate 5, so that the transparent support member 4 can be better fixed on the backplane 1, and the possibility of the transparent support member 4 breaking can be reduced. In some embodiments, the transparent support member 4 and the substrate 5 may be integrally formed. Such a setting is beneficial to improving the assembly efficiency of the display device 100.

[0111] Please refer to Figures 14 and 15. Figure 14 is a partial top view of another display device provided according to some embodiments of the present application, and Figure 15 is a partial cross-sectional view of another display device provided according to some embodiments of the present application. In some embodiments, the substrate 5 of the alternative display device may also be formed with a first latching hole 51 and a second latching hole 52. The back panel 1 also has a snap-fitting portion 11, which snaps into engagement with the second latching hole 52. Thus, through the snap-fitting engagement of the snap-fitting portion 11 with the second latching hole 52, the substrate 5 and back panel 1 in the alternative display device can be detachably connected. This connection method is simple and easy to assemble, thereby improving the assembly efficiency of the display device 100. It should be noted that the back panel 1 may also be provided with the first latching hole 51 and the second latching hole 52, and the substrate 5 may be provided with a snap-fitting member that snaps into engagement with the second latching hole 52. This is not a limitation of the present application. In some embodiments, the snap-fitting portion 11 may be formed by stamping the back panel 1. This arrangement helps reduce the manufacturing difficulty of the back panel 1.

[0112] Please continue to refer to Figures 14 and 15. In some embodiments, another display device includes a substrate 5 on which a positioning hole 53 may be formed. The positioning hole 53 is spaced apart from the first clamping hole 51 and the second clamping hole 52. A positioning portion 12 may be formed on the back panel 1. The positioning portion 12 is engaged with the positioning hole 53. Thus, the engagement between the positioning portion 12 and the positioning hole 53 allows the engaging portion 11 and the second clamping hole 52 to be directly assembled, which helps to reduce the difficulty of assembly and also improves the reliability of the connection between the back panel 1 and the substrate 5. It should be noted that the back panel 1 may be provided with a positioning hole 53 and the substrate 5 may be provided with a clamping member that engages with the positioning hole 53. This application does not limit this. In some embodiments, the positioning portion 12 may also be formed by stamping the back panel 1. This arrangement helps to reduce the difficulty of manufacturing the back panel 1.

[0113] Please refer to Figures 16 and 17. Figure 16 is a partial perspective view of another display device provided according to other embodiments of the present application, and Figure 17 is a partial top view of another display device provided according to other embodiments of the present application. In some embodiments, the backlight module 102 in the display device may further include an elastic support member 6. The structure and connection method of the elastic support member 6 have been described above and will not be repeated here.

[0114] Continuing with FIG17 , in some embodiments, the cross-section of the transparent support member 4 can be circular. This configuration can improve the uniformity of the light emitted by the light source 2 after passing through the transparent support member 4. This also helps reduce the difficulty of manufacturing the transparent support member 4, thereby reducing the manufacturing cost of the display device 100.

[0115] Please refer to Figure 18, which is a partial perspective view of another display device provided according to other embodiments of the present application. In some embodiments, the cross-section of the transparent support member 4 can be formed into a polygonal shape. In some embodiments, the cross-section of the transparent support member 4 can be formed into a quadrilateral, pentagon, hexagon, or other shape. This configuration can reduce the difficulty of manufacturing the transparent support member 4, thereby helping to reduce the manufacturing cost of the display device 100.

[0116] Please refer to Figure 19, which is a structural schematic diagram of the third display device provided according to some embodiments of the present application. Figure 20 is a structural schematic diagram of the third display device provided according to some embodiments of the present application. The display device includes a back panel 1, a diffuser plate 3, a light source (or light panel) 2 and a diffuser plate support frame. The back panel 1 serves as a supporting structure for the display device and can fix the display screen, circuit board and other components of the display device to ensure that they are firmly installed together. The diffuser plate 3 is arranged on one side of the back panel 1. The diffuser plate 3 can help the display device to evenly distribute light, reduce reflection and glare on the surface of the display screen of the display device, and improve the display effect and viewing comfort of the display device. The light source 2 is arranged on the back panel 1. The light emitting surface of the light source 2 faces the diffuser plate 3. As a backlight source, the light source 2 can provide uniform backlight, so that the image on the display screen of the display device is clearly visible. A mixed light space is formed between the diffuser plate 3 and the back panel 1. The diffuser plate support frame is arranged between the back panel 1 and the diffuser plate 2. The diffuser plate support frame may include a base 8 and a support member 4 ′. The base 8 is connected to the back plate 1 , and the support member 4 ′ is in contact with the diffuser plate 3 .

[0117] Figure 21 illustrates the structure of a diffuser panel support frame according to some embodiments of the present application from a first perspective; Figure 22 illustrates the structure of a diffuser panel support frame according to some embodiments of the present application from a second perspective; and Figure 23 illustrates the structure of a diffuser panel support frame according to some embodiments of the present application from a third perspective. In some embodiments, the base 8 of the diffuser panel support frame may include a support platform. The support member 4' is disposed on the support platform. The base 8 provides stable support for the support member 4'.

[0118] In some embodiments, the support member 4 ′ may include a support rod 40 , and the support rod 40 may include a first end 401 and a second end 402 .

[0119] In some embodiments, the first end 401 of the support rod 40 is connected to the base 8 , and the second end 402 of the support rod 40 is in contact with the diffuser plate 3 .

[0120] In some embodiments, the support rod 40 has a cavity 403 , and along the axial direction of the support rod 40 , the cavity 403 passes through two opposite end surfaces of the support rod 40 .

[0121] 21 and 22 , the support rod 40 may be a prismatic structure.

[0122] In some embodiments, the support rod 40 may include at least four side walls 404 , and the number of the side walls 404 is an even number. The at least four side walls 404 are sequentially connected end to end and surround the cavity 403 .

[0123] In some embodiments, the sidewalls 404 may include an inner surface 405 and an outer surface 406. The inner surface 405 and the outer surface 406 are parallel, and the thickness of each sidewall 404 is equal.

[0124] By configuring support rods 40 as prismatic structures, setting the number of sidewalls 404 of support rods 40 to an even number, and setting the thickness of each sidewall 404 to the same value, light undergoes multiple refractions within the sidewalls 404 and cavity 403 during light propagation due to the different refractive indices of the sidewalls 404 and cavity 403. This ensures that at least a portion of the incoming light propagates in the same direction as the outgoing light, achieving uniform light propagation and avoiding the problem of light convergence in conventional cylindrical support structures. This also prevents the shadow cast by the diffuser plate support frame on the diffuser plate 3, thereby improving the display quality of the display device.

[0125] In some embodiments, the base 8 may be a transparent member. Alternatively, the support rod 40 may be a transparent rod.

[0126] In some embodiments, the base 8 can be a transparent base. The support rod can be a transparent rod. When light passes through the diffuser plate support frame, the base 8 and the support rod 40 can reduce the obstruction of light, allowing the light to pass through the entire diffuser plate support frame more naturally, improving the brightness and transparency of the diffuser plate support frame, and preventing light from casting a shadow on the diffuser plate 3. By setting both the support rod 40 and the base 8 as a transparent body, the transparent body allows light to pass through and propagate, allowing light to pass through the diffuser plate support frame, preventing the diffuser plate support frame from casting a shadow on the diffuser plate 3. At the same time, the transparent body allows light to reflect and refract within it to change the propagation direction of the light, allowing the light to propagate within the transparent body and reach the target position, which helps to control the path and distribution of the light.

[0127] In some embodiments, the number of sidewalls 404 may be 2N. N may be greater than or equal to 2 and less than or equal to 9. N may be a positive integer greater than or equal to 2.

[0128] Figure 24 illustrates the path of light propagation when passing through a support rod with a regular quadrangular prism structure, according to some embodiments of the present application. In some embodiments, as shown in Figure 24 , when N is 2, support rod 40 is a quadrangular prism. Support rod 40 has four sidewalls 404. Referring to Figure 24 , the solid black arrows indicate the direction of light propagation, and the hollow white arrows indicate the actual path of light propagation. When the cavity 403 of the support rod 40 is filled with air, first, light enters through the outer surface 406 of one side wall 404 of the support rod 40. At this time, the light undergoes a first refraction at the outer surface 406 of the side wall 404. Then, the light undergoes a second refraction at the inner surface 405 of the side wall 404. Then, the light enters the cavity 403 and propagates in a straight line along the cavity 403 until the light contacts the inner surface 405 of the other side wall 404 of the support rod 40, whereupon the light undergoes a third refraction. Then, the light propagates within the side wall 404, and when the light encounters the outer surface 406 of the side wall 404, the light undergoes a fourth refraction, and finally, the light leaves the support rod 40. In summary, when light passes through the support rod 40 with a quadrangular prism structure, the support rod 40 with a quadrangular prism structure can change the propagation path of the light, causing the light to undergo multiple refractions in the quadrangular prism structure, thereby achieving dispersed propagation of the light, preventing the light from converging at one point, improving the uniformity of light propagation, and improving the brightness and transparency of the light.

[0129] In some embodiments, when the number of sidewalls 404 is less than 4, the sidewalls 404 cannot effectively refract light multiple times, which is detrimental to uniform light propagation. When N is greater than 9, that is, the number of sidewalls 404 is greater than 18, the sidewalls 404 can refract light multiple times. However, considering the molding process of the support rod 40, too many sidewalls 404 may complicate the molding process of the support rod 40. Therefore, in this application, the number of sidewalls 404 is set to 2N, where N is greater than or equal to 2 and less than or equal to 9.

[0130] It is understandable that, since the number of the side walls 404 of the prism can only be an integer, N is limited to a positive integer greater than or equal to 2.

[0131] In some embodiments, along the axial direction of the support rod 40 , the orthographic projection lengths of at least two outer surfaces 406 on the support platform are unequal.

[0132] In other embodiments, along the axial direction of the support rod 40, the lengths of the orthographic projections of at least two outer surfaces 406 on the support platform are not equal, and the orthographic projections of the outer surfaces of the side walls 404 on the support platform are connected end to end in sequence to form a polygon, and the lengths of any set of two opposite sides in the polygon are equal and parallel.

[0133] Figure 25 is a diagram of the light path propagation when light passes through a support rod 40 of a non-regular hexagonal prism structure according to some embodiments of the present application. Figure 26 is a cross-sectional view of a support rod 40 of a non-regular hexagonal prism structure according to some embodiments of the present application. In some embodiments, referring to Figures 25 and 26, the number of side walls 404 is 6. The lengths of the orthographic projections of the two outer surfaces 406 on the support platform are not equal. At this time, the support rod 40 is a non-regular prism structure. Along the axial direction perpendicular to the support rod 40, the orthographic projections of the outer surfaces 406 of the side walls 404 on the support platform are connected end to end in sequence to form a hexagon. The lengths of any set of two opposite sides in the hexagon are equal and parallel.

[0134] In some embodiments, referring to the cross-section shown in FIG26 , a hexagon may include three sets of two opposing sides. Any set of two opposing sides refers to: the topmost side and the bottommost side corresponding to each other, forming a set of two opposing sides; the side at the bottom left corner and the side at the top right corner corresponding to each other, forming a set of two opposing sides; and the side at the top left corner and the side at the bottom right corner corresponding to each other, forming a set of two opposing sides.

[0135] When light at a certain angle reaches the non-regular prism support rod 40, due to the irregular shape of the non-regular prism support rod 40, the light will be refracted, reflected, and scattered. The light can also undergo multiple refractions within the support rod 40, sidewalls 404, and cavity 403, changing the light's propagation path and affecting its direction.

[0136] In some embodiments, the number of the side walls 404 may be 4. The polygon formed by sequentially connecting the orthographic projections of the outer surfaces of the side walls 404 on the support platform end to end may be a parallelogram.

[0137] To ensure effective propagation of light, in some embodiments, the relationship between the thickness of the sidewalls 404, the number of sidewalls 404, and the shortest length of the orthographic projection of the outer surface 406 on the support platform should satisfy the following conditions:

[0138] Wherein, t is the thickness of the side wall 404, N is half of the number of the side walls 404, and L min is the shortest length of the orthographic projection of the outer surface 406 on the support platform.

[0139] In some embodiments, when N is 3, that is, the prism structure is a non-regular hexagonal prism structure, and the shortest length of the positive projection of the outer surface 406 on the support platform is 1 cm, the thickness t of the side wall 404 in some embodiments of the present application can be in the range of greater than 0 and less than 0.25.

[0140] When the value of t is greater than 0 and less than 0.25, the thickness of the sidewall 404 is relatively thin, less than one-quarter the length of the orthographic projection of the outer surface 406 of the sidewall 404 on the support platform. When some light enters from the outer surface 406 of one sidewall 404 of the support rod 40, it is refracted by the outer surface 406, the inner surface 405, and the cavity 403 before entering the opposite sidewall 404. It is refracted again on the opposite sidewall 404 until it exits through the outer surface 406. This multiple refraction of light within the support member 4' facilitates light dispersion and uniform light propagation, preventing shadows from forming on the diffuser plate 3.

[0141] If the value of t is greater than or equal to 0.25, the thickness of the sidewall 404 is relatively thick, and the thickness of the sidewall 404 is greater than or equal to one-quarter of the length of the orthographic projection of the outer surface 406 of the sidewall 404 on the support platform. When some light enters from the outer surface 406 of one sidewall 404 of the support rod 40, it may be directly emitted through the outer surface 406 of the other sidewall 404. This prevents the light from undergoing multiple refractions within the support member 4', hindering light propagation. This results in a large angle between the incident and exit angles of some light, affecting the uniformity of light propagation and potentially casting a shadow on the diffuser plate 3.

[0142] In some embodiments, the support rod 40 may be a regular prism structure. Along the axial direction of the support rod 40, the orthographic projection lengths of the outer surfaces 406 on the support platform are equal. The cross section of the support rod 40 may be a regular polygon.

[0143] In some embodiments, Figure 27 illustrates the path of light traveling at a first angle through a support rod 40 having a regular hexagonal prism structure, according to some embodiments of the present application. When N is 3, the support rod 40 is a regular hexagonal prism structure. The support rod 40 has six sidewalls 404. Referring to Figure 27 , the solid black arrows indicate the direction of light propagation, and the hollow white arrows indicate the actual path of light propagation. When there is air in the cavity 403 of the support rod 40, first, the light enters from the outer surface 406 of one side wall 404 of the support rod 40. At this time, the light undergoes the first refraction at the outer surface 406 of the support rod 40, and the propagation path of the light refers to the direction indicated by the white hollow arrow in Figure 27; then the light undergoes the second refraction through the inner surface 405 of the side wall 404 and enters the cavity 403. At this time, the light propagates in a straight line in the cavity 403 until the light contacts the inner surface 405 of the other side wall 404 of the support rod 40. At this time, the light undergoes the third refraction, and then the light propagates in the side wall 404. When the light encounters the outer surface 406 of the side wall 404, the light undergoes the fourth refraction, and finally the light leaves the support rod 40. In summary, when light passes through the support rod 40 of the regular hexagonal prism structure, the support rod 40 of the regular hexagonal prism structure can change the propagation path of the light, so that the light is refracted multiple times in the regular hexagonal prism structure to achieve dispersed propagation of the light, avoid the light from converging at one point, improve the uniformity of light propagation, and improve the brightness and transparency of the light.

[0144] Compared to a quadrangular prism, a regular hexagonal prism has more sidewalls, and the angles between adjacent sidewalls are larger. This allows light to spread across a wider range of angles as it passes through the regular hexagonal prism, preventing it from converging at a single point and further improving the uniformity of light transmission.

[0145] In some embodiments, Figure 28 is a light path propagation diagram when a light ray of a second angle provided by some embodiments of the present application passes through the support rod 40 of a regular hexagonal prism structure. Figure 29 is a light path propagation diagram when a light ray of a third angle provided by some embodiments of the present application passes through the support rod 40 of a regular hexagonal prism structure. Figure 30 is a light path propagation diagram when a light ray of a first angle provided by some embodiments of the present application passes through the support rod 40 of a regular octagonal prism structure. Figure 31 is a light path propagation diagram when a light ray of a first angle provided by some embodiments of the present application passes through the support rod 40 of a regular octagonal prism structure. Referring to Figures 27 to 31, the propagation paths of light rays when light rays of different angles are respectively irradiated onto the regular hexagonal prism structure and the regular octagonal prism structure are simulated. It can be seen from the figures that by setting up a prism structure, the light rays can be refracted multiple times in the support rod 40. The support rod 40 can improve the propagation path of the light rays, ensure that the propagation direction of a large number of incident light rays is the same as the propagation direction of the outgoing light rays, and improve the uniformity of the light propagation.

[0146] In some embodiments, when light passes through the support rods 40 of the regular octagonal prism structure, the support rods 40 of the regular octagonal prism structure can change the propagation path of the light, causing the light to be refracted multiple times in the regular octagonal prism structure to achieve dispersed propagation of the light, preventing the light from converging at a point, improving the uniformity of light propagation, and improving the brightness and transparency of the light. Compared with the quadrangular prism structure, the regular octagonal prism structure has twice the number of side walls of the quadrangular prism structure, and the angle between adjacent side walls of the regular octagonal prism structure is larger than the angle between adjacent side walls of the quadrangular prism structure. When light passes through the regular octagonal prism structure, the regular octagonal prism structure can change the propagation path and direction of the light, causing the light to diffuse at more angles, preventing the light from converging at a point, and further improving the uniformity of light propagation. Furthermore, the light will also be reflected in the side walls of the regular octagonal prism structure, causing the light to propagate again after reflection, thereby improving the utilization rate of the light and reducing energy loss.

[0147] In some embodiments, Figure 32 illustrates the first light path propagation diagram of light passing through a support rod 40 without a cavity according to some embodiments of the present application. Figure 33 illustrates the second light path propagation diagram of light passing through a support rod 40 without a cavity according to some embodiments of the present application. Referring to Figures 32 and 33, the light path propagation of light irradiating a solid support rod 40 is simulated. In this case, the support rod 40 does not have a cavity 403. The solid black arrows indicate the direction of light propagation, and the hollow white arrows indicate the path of light propagation. As can be seen in Figure 32, when the prism structure is a solid regular hexagonal prism, the propagation direction of some incident light rays differs significantly from that of the outgoing light rays, resulting in poor light propagation uniformity. Similarly, when the prism structure is a solid non-regular hexagonal prism, the propagation direction of some incident light rays differs significantly from that of the outgoing light rays, resulting in poor light propagation uniformity. Therefore, in the present application, the support rod 40 includes a cavity 403 to allow light to undergo multiple refractions within the sidewalls 404 and cavity 403, improving light propagation uniformity.

[0148] Figure 34 is a cross-sectional view of a support rod 40 having a regular hexagonal prism structure according to some embodiments of the present application. Figure 35 is a cross-sectional view of a support rod having a regular hexagonal prism structure according to some embodiments of the present application. To ensure effective light propagation, the relationship between the thickness of the sidewall 404, the number of sidewalls 404, and the length of the orthographic projection of the outer surface 406 on the support platform should meet the following conditions:

[0149] 34 and 35 , t is the thickness of the side wall 404 , N is half the number of the side walls 404 , L is the length of the positive projection of the outer surface 406 on the support platform, and N is a positive integer greater than or equal to 2.

[0150] In some embodiments, when N is 3, that is, the prism structure is a regular hexagonal prism structure, and the orthographic projection length of the outer surface 406 on the support platform is 1 cm, the thickness t of the side wall 404 of some embodiments of the present application ranges from greater than 0 to less than 0.25.

[0151] If the value of t is greater than or equal to 0.25, the thickness of the side wall 404 is relatively thick. The thickness of the side wall 404 is greater than or equal to one-quarter of the length of the positive projection of the outer surface 406 of the side wall 404 on the support platform. When some light enters from the outer surface 406 of one side wall 404 of the support rod 40, the light may be directly emitted directly through the outer surface 406 of the other side wall 404. In this way, the light cannot undergo multiple refractions in the support member 4', which is not conducive to the propagation of light, resulting in a large angle between the incident angle and the exit angle of some light, affecting the uniformity of light propagation, and may form a shadow on the diffuser plate 3.

[0152] In some embodiments, as shown in FIG. 34 , the cavity 403 of the support rod 40 is filled with air. Due to the different refractive indices of air and the support rod 40, light is refracted as it propagates from the inner surface 405 of the support rod 40 into the cavity 403. By setting the refractive index of the support rod 40 to be different from that of the transparent filler 41 ″, the light propagation path is altered, which facilitates uniform light propagation.

[0153] In some embodiments, as shown in Figure 35, the support member 4' may further include a transparent filling body 41", the transparent filling body 41" may be a prismatic structure, the transparent filling body 41" is located in the cavity 403, and the transparent filling body 41" is in contact with the inner surface 405 of the side wall 404. In some embodiments, the refractive index of the support rod 40 and the refractive index of the transparent filling body 41" may be different. The transparent filling body 41" may have a certain effect on the propagation of light, and the transparent filling body 41" may change the propagation path of light at the inner surface 405 of the support rod 40 to affect the refraction and reflection of light. The refractive index of the transparent filling body 41" will affect the propagation direction of light in the cavity 403. The light is refracted at the contact point between the inner surface 405 of the support rod 40 and the transparent filling body 41", so as to change the propagation direction of light in the diffuser plate support frame.

[0154] In some embodiments, the materials of the support rod 40 and the transparent filling body 41" may be different. When the materials of the transparent filling body 41" and the support rod 40 are different, the refractive index of the transparent filling body 41" and the support rod 40 may be different. When the light is refracted through the support rod 40 to the transparent filling body 41", the transparent filling body 41" will change the refraction angle of the light again to further change the propagation direction of the light, which is beneficial to the dispersion of the light passing through the diffuser plate support frame and improves the uniformity of light propagation in the diffuser plate support frame.

[0155] In some embodiments, the material of the support rod 40 may include any one of polycarbonate, acrylonitrile-butadiene-styrene copolymer, and polymethyl methacrylate. The material of the transparent filler 41 ″ may include any one of polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer, and polymethyl methacrylate.

[0156] In some embodiments, polycarbonate has very high transparency and good light transmittance, and also has good impact resistance, and can withstand a certain degree of impact without easily breaking. Thus, when the support rod 40 is made of polycarbonate, the second end 402 of the support rod 40 is used to abut against the diffuser plate 3, so that when the diffuser plate 3 applies pressure to the support rod 40, the support rod 40 can resist the impact of the diffuser plate 3. Polycarbonate also has good processability, high temperature resistance, and chemical resistance. This not only facilitates the molding of the support rod 40 or the transparent filling body 41" by injection molding, extrusion, etc., simplifying the molding process; it also increases the service life of the support rod 40 and the transparent filling body 41".

[0157] In other embodiments, acrylonitrile-butadiene-styrene copolymer is a special synthetic copolymer formed by copolymerizing three monomers, acrylonitrile (AN), butadiene (BD) and styrene (Sty), in a certain proportion. This copolymer is usually called ABS resin. Acrylonitrile-butadiene-styrene copolymer has good strength and toughness, and also has high impact resistance. Thus, when the material of the support rod 40 is acrylonitrile-butadiene-styrene copolymer, the second end 402 of the support rod 40 is used to abut against the diffuser plate 3, so that when the diffuser plate 3 applies pressure to the support rod 40, the support rod 40 can effectively resist the impact of the diffuser plate 3. Acrylonitrile-butadiene-styrene copolymer also has good processability, high temperature resistance and chemical resistance, which is not only conducive to the support rod 40 or the transparent filling body 41″ being molded by injection molding, extrusion and the like, simplifying the molding process; but also can improve the service life of the support rod 40 and the transparent filling body 41″.

[0158] In yet other embodiments, polymethyl methacrylate (PMMA) is a common synthetic resin, also known as organic glass or acrylic. It is a polymer formed by the polymerization of methyl methacrylate monomers. PMMA has high transparency, light transmittance close to that of glass, and is lightweight. It also has good processability, high temperature resistance, and chemical resistance. This not only facilitates the molding of the support rod 40 or the transparent filler 41″ by injection molding, extrusion, or other methods, simplifying the molding process, but also increases the service life of the support rod 40 and the transparent filler 41″.

[0159] In some embodiments, the support rod 40 may be made of polycarbonate. The transparent filler 41 ″ may be made of polymethyl methacrylate. Alternatively, the support rod 40 may also be made of polymethyl methacrylate. The transparent filler 41 ″ may be made of acrylonitrile-butadiene-styrene copolymer.

[0160] In some embodiments, the diffuser support frame may further include an elastic support member 6 , which is disposed on the support platform. The support rod 40 is connected to the elastic support member 6 , and at least part of the support rod 40 is located on the side of the elastic support member 6 away from the base 8 .

[0161] In some embodiments, the elastic support member 6 is disposed on the support platform. The first end 401 of the support rod 40 is connected to the elastic support member 6. When the diffuser plate 3 is bent or deformed, the second end 402 of the support rod 40 will be squeezed by the diffuser plate 3. At this time, under the elastic action of the elastic support member 6, the elastic support member 6 applies an elastic force to the support rod 40, and the first end 401 of the support rod 40 transfers the force to the second end 402 of the support rod 40. The second end 402 of the support rod 40 presses against the diffuser plate 3 to prevent the diffuser plate 3 from deforming. By providing the elastic support member 6, light is refracted through the elastic support member 6, thereby improving the uniformity of light propagation. At the same time, the elastic support member 6 applies an elastic force to the diffuser plate 3, thereby preventing the diffuser plate 3 from deforming and improving the display effect of the display device.

[0162] In some embodiments, the support rod 40 and the elastic supporting member 6 can be manufactured by integral injection molding.

[0163] In some feasible embodiments, the elastic supporting member 6 may include an elastic supporting portion 62' and an elastic connecting portion 61', the elastic connecting portion 61' is connected to the supporting platform, the elastic connecting portion 61' is connected to the elastic supporting portion 62', there is a buffer gap 63' between the elastic supporting portion 62' and the supporting platform, and the support rod 40 is connected to the elastic supporting portion 62'.

[0164] In some embodiments, the elastic connection portion 61' may be a cylinder, which may have a central through hole, and the cylinder cavity passes through the two opposite end faces of the cylinder along the axial direction of the support rod 40. An elastic support portion 62' may be provided at the end of the cylinder away from the base 8, and the elastic support portion 62' is connected to the first end 401 of the support rod 40. When the second end 402 of the support rod 40 is squeezed by the diffuser plate 3, the second end 402 of the support rod 40 transmits the squeezing force to the first end 401 of the support rod 40, and the first end 401 of the support rod 40 squeezes the elastic support portion 62', and the elastic support portion 62' deforms toward the buffer gap 63'. At the same time, under the action of its own elastic force and the elastic force of the elastic connection portion 61', the elastic support portion 62' rebounds the support rod 40, so that the support rod 40 is pressed against the diffuser plate 3 to avoid bending and deformation of the diffuser plate 3.

[0165] In some embodiments, there may be two elastic connection parts 61 ′, and the two elastic connection parts 61 ′ may be spaced apart. The top ends of the two elastic connection parts 61 ′ are respectively connected to the elastic support parts 62 ′.

[0166] In some embodiments, the elastic connection portion 61' can be an elastic connection foot, and the elastic support portion 62' can be an elastic support plate. The two elastic connection portions 61' are arranged at intervals, and the bottom ends of the two elastic connection portions 61' are connected to the base 8 to improve the connection strength between the elastic support member 6 and the base 8; the top ends of the two elastic connection portions 61' are connected to the elastic support portion 62'. When the second end 402 of the support rod 40 is squeezed by the diffuser plate 3, the second end 402 of the support rod 40 transmits the squeezing force to the first end 401 of the support rod 40, and the first end 401 of the support rod 40 squeezes the elastic support portion 62'. The elastic support portion 62' bends and deforms toward the buffer gap 63'. At the same time, under the action of its own elastic force, the elastic support portion 62' rebounds the support rod 40 to make the support rod 40 press against the diffuser plate 3 to avoid bending and deformation of the diffuser plate 3.

[0167] In some embodiments, the elastic support portion 62' may include a middle section 621 and two inclined connecting sections 622, wherein opposite sides of the middle section 621 are respectively connected to an inclined connecting section 622, and the two inclined connecting sections 622 are respectively connected to the top ends of the two elastic connecting portions 61'.

[0168] As shown in FIG36 , the two inclined connecting sections 622 can extend toward the base 8. Thus, when the support rod 40 is squeezed by the diffuser plate 3, the support rod 40 squeezes the middle section 621 at the bottom, causing the middle section 621 to move toward the buffer gap 63 ′. However, due to the elasticity of the inclined connecting sections 622 and the middle section 621, the support rod 40 is subjected to a rebound force, pressing against the diffuser plate 3 to prevent deformation of the diffuser plate 3.

[0169] Finally, it should be noted that the above embodiments are only used to illustrate the solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding solutions from the scope of the embodiments of the present application.

[0170] For ease of explanation, the above description has been made in conjunction with specific embodiments. However, the discussion of the above embodiments is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are intended to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A display device, comprising: a display panel configured to display an image; A backlight module is arranged on a side away from the display surface of the display panel, and the backlight module includes: Back panel; A light source, the light source being arranged on a side of the back plate close to the display panel; a diffusion plate, the diffusion plate being arranged at intervals on a side of the light source close to the display panel; A transparent support member, one end of which is connected to the back plate, and the other end of which is abutted against the diffuser plate, the outer contour of the cross section of the transparent support member is a hexagon, and the transparent support member includes six triangular prisms, the side surfaces of the six triangular prisms are connected end to end in sequence, and there is a gap between two adjacent triangular prisms. 2 . The display device according to claim 1 , wherein the cross section of the triangular prism is an equilateral triangle. 3 . The display device according to claim 1 , wherein the outer contour of the cross section of the transparent support member is a regular hexagon. 4 . The display device according to claim 1 , wherein the transparent support member has a cavity, and side edges of the six triangular prisms close to the cavity are arranged at intervals around the circumference of the cavity.

5. The display device according to claim 1, the backlight module also includes a substrate, the substrate is located on a side of the back plate close to the display panel and is detachably connected to the back plate, the transparent support member is arranged on a side of the substrate close to the display panel, and the orthographic projection of the transparent support member on the back plate is located within the orthographic projection of the substrate on the back plate.

6. The display device according to claim 5, a first card hole and a second card hole are formed on the substrate, the first card hole and the second card hole are connected, and the aperture of the first card hole is larger than the aperture of the second card hole, and a card connection portion is formed on the back plate, and the card connection portion is card-engaged with the second card hole.

7. The display device according to claim 6, wherein a positioning hole is further formed on the substrate, the positioning hole is spaced apart from the first clamping hole and the second clamping hole, and a positioning portion is formed on the back plate, the positioning portion is engaged with the positioning hole.

8. The display device according to claim 5, the backlight module also includes an elastic supporting member, the elastic supporting member has a first end and a second end opposite to each other, the first end is connected to the substrate, the second end is connected to the transparent supporting member, and the distance between the first end and the first end changes when the elastic supporting member is under pressure.

9. According to the display device according to claim 8, the elastic supporting member includes a deformation part and a connecting part, the transparent supporting member is arranged on a side of the connecting part close to the display panel, the two opposite ends of the connecting part are connected to the deformation part, the deformation part is arranged at the edge of the substrate, and the deformation part extends in a direction close to the diffusion plate. 10 . The display device according to claim 1 , wherein the backlight module comprises a plurality of the transparent supporting members, and the plurality of the transparent supporting members are arranged at intervals on the back plate.

11. A display device, comprising: a display panel configured to display an image; A backlight module is disposed on a side facing away from the display surface of the display panel. The backlight module includes: a back plate; a light source disposed on a side of the back plate close to the display panel; a diffusion plate disposed at an interval on a side of the light source close to the display panel; a transparent support member including a first part and a second part. One end of the first part is connected to the back plate, and the other end is connected to the second part. One end of the second part far from the first part abuts against the diffusion plate. Along the direction from the back plate to the diffusion plate, the cross-sectional area of the first part gradually decreases. Along the direction from the diffusion plate to the back plate, the cross-sectional area of the second part gradually decreases, and the minimum cross-sectional area of the second part is the same as the minimum cross-sectional area of the first part.

12. The display device according to claim 11, wherein a projection of the second part on the back plate is located within a projection of the first part on the back plate, and a radius of curvature r of a side edge of the transparent support member satisfies: (2×(n + 1)×L) / sinα < r < ((n + 1)×L) / sinα; Among them, n is a refractive index of a material used for the transparent support member, L is a distance between the transparent support member and the light source, and α is an angle between a connection line between an outermost end point of the first part and an outermost end point of the second part and a plane perpendicular to the diffusion plate and the back plate.

13. The display device according to claim 12, wherein the backlight module further includes a reflective sheet disposed on the back plate, and a length f of a side edge of the transparent support member satisfies: 0.9×D < f < D; Among them, D is a perpendicular distance between the reflective sheet and the diffusion plate.

14. The display device according to any one of claims 11-13, wherein a cross-section of the transparent support member is formed as a circle; or, the cross-section of the transparent support member is formed as a polygon.

15. The display device according to any one of claims 11-13, wherein one end of the second part close to the diffusion plate has a boss, and an outer surface of the boss is formed as a hemispherical surface.

16. The display device according to any one of claims 11-13, wherein the backlight module further includes a substrate located on a side of the back plate close to the display panel and detachably connected to the back plate, and the transparent support member is disposed on a side of the substrate close to the display panel.

17. The display device according to claim 16, wherein a first card hole and a second card hole are formed on the substrate. The first card hole and the second card hole are communicated, and a diameter of the first card hole is larger than a diameter of the second card hole. A card connection portion is formed on the back plate, and the card connection portion is in card connection and cooperation with the second card hole.

18. The display device according to claim 17, wherein a positioning hole is further formed on the substrate. The positioning hole is disposed at an interval from the first card hole and the second card hole. A positioning portion is formed on the back plate, and the positioning portion is in card connection and cooperation with the positioning hole.

19. The display device according to claim 16, wherein the backlight module further comprises an elastic support member having opposite first and second ends, the first end being connected to the substrate, the second end being connected to the transparent support member, and the distance between the first ends changing when the elastic support member is under pressure.

20. The display device according to claim 19, wherein the elastic support member comprises a deformed portion and a connecting portion, the transparent support member being disposed on a side of the connecting portion close to the display panel, the deformed portions being connected to opposite ends of the connecting portion, the deformed portions being disposed at an edge of the substrate and extending towards the diffusion plate.

21. A display device, comprising: a backplane; a diffusion plate disposed on one side of the backplane; a light source disposed on the backplane, the light-emitting surface of the light source facing the diffusion plate; a diffusion plate support frame disposed between the light source and the diffusion plate, the diffusion plate support frame comprising a base and a support member, the base being connected to the backplane, and the support member abutting against the diffusion plate; the base comprises a support platform; the support member is disposed on the support platform; the support member comprises a support rod having a cavity, and along the axial direction of the support rod, the cavity penetrates through opposite end faces of the support rod; the support rod is a prismatic structure, the support rod comprising at least four side walls, and the number of the side walls being an even number; at least four of the side walls are sequentially connected end to end to enclose the cavity; each side wall comprises an inner surface and an outer surface, the inner surface and the outer surface being parallel, and the thicknesses of all the side walls being equal.

22. The display device according to claim 21, wherein the base is a transparent member; or the support rod is a transparent rod.

23. The display device according to claim 21, wherein the number of the side walls is 2N, N is greater than or equal to 2 and less than or equal to 9, and N is a positive integer greater than or equal to 2.

24. The display device according to claim 23, along the axial direction of the support rod, the positive projection lengths of at least two of the outer surfaces on the support platform are not equal, and the positive projections of the outer surfaces of at least four of the side walls on the support platform are sequentially connected end to end to form a polygon, and the lengths of any pair of opposite sides of the polygon are equal and parallel; The relationship among the thickness of the side wall, the number of the side walls, and the shortest length of the orthographic projection of the outer surface on the support platform should satisfy: Among them, The t is the thickness of the side wall, the N is one half of the number of the side walls, and the L min is the shortest length of the orthographic projection of the outer surface on the support platform.

25. The display device according to claim 23, wherein the support rod has a regular prism structure, and along the axial direction of the support rod, the orthographic projection lengths of each of the outer surfaces on the support platform are equal. The relationship among the thickness of the side wall, the number of the side walls, and the orthographic projection length of the outer surface on the support platform should satisfy: Among them, t is the thickness of the side wall, N is half of the number of the side walls, and L is the positive projection length of the outer surface on the support platform.

26. The display device according to claim 23, wherein the support member further comprises a transparent filling body which is a prismatic structure and is located in the cavity; the transparent filling body is in contact and fit with the inner surface; the refractive index of the support rod is different from that of the transparent filling body.

27. The display device according to claim 26, wherein the materials of the support rod and the transparent filling body are different.

28. The display device according to claim 27, wherein the material of the support rod includes any one of polycarbonate, acrylonitrile-butadiene-styrene copolymer, and polymethyl methacrylate; The material of the transparent filling body includes any one of polycarbonate, acrylonitrile-butadiene-styrene copolymer, and polymethyl methacrylate.

29. The display device according to any one of claims 21-28, further comprising an elastic support member, the elastic support member is disposed on the support platform, the support rod is connected to the elastic support member, and at least a part of the support rod is located on a side of the elastic support member away from the base.

30. The display device according to claim 29, wherein the elastic support member includes an elastic support portion and an elastic connection portion, the elastic connection portion is connected to the support platform, the elastic support portion is connected to the elastic connection portion, there is a buffer gap between the elastic support portion and the support platform, and the support rod is connected to the elastic support portion.

31. The display device according to claim 30, wherein the number of the elastic connection portions is two, the two elastic connection portions are spaced apart, and respective tops of the two elastic connection portions are respectively connected to the elastic support portion.

32. The display device according to claim 31, wherein the elastic support portion includes a middle section and two inclined connection sections, the middle section is connected to one of the inclined connection sections on each of opposite sides, and the two inclined connection sections are respectively connected to the tops of the two elastic connection portions.

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