Display device

Abstract

The invention provides a display device, relates to the technical field of display, and is used for improving the display quality of the display device. The display device comprises a display panel and a backlight module. The display panel is used for displaying images. The backlight module is arranged on one side away from the display surface of the display panel. The backlight module comprises a back plate, a light source, a diffusion plate and a transparent supporting piece. The light source is arranged on the side, close to the display panel, of the back plate. The diffusion plates are arranged on the sides, close to the display panel, of the light sources at intervals. The transparent supporting piece comprises a first part and a second part, one end of the first part is connected with the back plate, the other end of the first part is connected with the second part, the end, away from the first part, of the second part abuts against the diffusion plate, and the cross sectional area of the first part is gradually reduced in the direction from the back plate to the diffusion plate; the cross sectional area of the second part is gradually reduced, and the minimum cross sectional area of the second part is the same as that of the first part.

Description

Technical Field

[0001] This application relates to the field of display technologies, and in particular, to a display device. Background Art

[0002] In related technologies, when the light source of a display device irradiates a support member for supporting a diffusion plate, due to reasons such as reflection or refraction of the support member, the propagation path of the light emitted from the support member is changed, resulting in uneven light distribution, thereby forming a shadow on the diffusion plate, and further reducing the display quality of the display device. Summary of the Invention

[0003] To solve the above technical problems, this application provides a display device for improving the display quality of the display device.

[0004] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0005] An embodiment of this application provides a display device, including a display panel and a backlight module. The display panel is used for displaying images. The backlight module is disposed on a side facing away from the display surface of the display panel. The backlight module includes a backplane, a light source, a diffusion plate, and a transparent support member. The light source is disposed on a side of the backplane close to the display panel. The diffusion plate is disposed at an interval on a side of the light source close to the display panel. The transparent support member includes 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. One end of the second part away from the first part abuts against the diffusion plate. Along the direction from the backplane to the diffusion plate, the cross-sectional area of the first part gradually decreases. Along the direction from the diffusion plate to the backplane, 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.

[0006] According to the display device of the embodiment of this application, by making the cross-sectional area of the first part of the transparent support member gradually decrease along the direction from the backplane to the diffusion plate, and the cross-sectional area of the second part gradually decrease along the direction from the diffusion plate to the backplane, when the light emitted by the light source irradiates the transparent support member, the principle of a concave lens can be utilized to propagate the light emitted by the light source to the transparent support member in a divergent and uniform angle, thereby reducing the phenomenon that the light emitted from the transparent support member forms a shadow on the diffusion plate, enabling the light to uniformly irradiate the entire surface of the display panel, which is beneficial to improving the display effect and display quality of the display device.

[0007] In some embodiments, the projection of the second part on the backplane is located within the projection of the first part on the backplane, and the radius of curvature r of the side edge of the transparent support satisfies: (2×(n + 1)×L) / sinα < r < ((n + 1)×L) / sinα. Here, n is the refractive index of the material of the transparent support, L is the distance between the transparent support and the light source, and α is the angle between the line connecting the outermost endpoints of the first part and the outermost endpoints of the second part and the plane perpendicular to the diffusion plate and the backplane.

[0008] In some embodiments, the backlight module further includes a reflective sheet. The reflective sheet is disposed on the backplane, and the length f of the side edge of the transparent support satisfies: 0.9×D < f < D. Here, D is the vertical distance between the reflective sheet and the diffusion plate.

[0009] In some embodiments, the cross-section of the transparent support is formed as a circle; or, the cross-section of the transparent support is formed as a polygon.

[0010] In some embodiments, one end of the second part close to the diffusion plate has a boss, and the outer surface of the boss is formed as a hemispherical surface.

[0011] In some embodiments, the backlight module further includes a substrate. The substrate is located on the side of the backplane close to the display panel and is detachably connected to the backplane. The transparent support is disposed on the side of the substrate close to the display panel.

[0012] In some embodiments, 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 the aperture of the first card hole is larger than that of the second card hole. A card connection portion is formed on the backplane, and the card connection portion is in snap-fit connection with the second card hole.

[0013] In some embodiments, a positioning hole is further formed on the substrate. The positioning hole is spaced from the first card hole and the second card hole. A positioning portion is formed on the backplane, and the positioning portion is in snap-fit connection with the positioning hole.

[0014] In some embodiments, the backlight module further includes an elastic support member. The elastic support member has opposite first and second ends. The first end is connected to the substrate, and the second end is connected to the transparent support. The distance between the first ends changes when the elastic support member bears pressure.

[0015] In some embodiments, the elastic support member includes a deformation portion and a connection portion. The transparent support is disposed on the side of the connection portion close to the display panel. Deformation portions are connected to both opposite ends of the connection portion. The deformation portions are disposed at the edge of the substrate and extend in the direction close to the diffusion plate. Description of the Drawings

[0016] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments in accordance with the present application, and are used together with the specification to explain the principles of the present application.

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or in the related art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the related art. Obviously, for those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of a support member in the related art;

[0019] Figure 2 Schematic diagram of a display device provided in some embodiments of the present application;

[0020] Figure 3 Cross-sectional view of a display device provided in some embodiments of the present application;

[0021] Figure 4 Schematic diagram of a transparent support member provided in some embodiments of the present application;

[0022] Figure 5 Partial perspective view of a display device provided in some embodiments of the present application;

[0023] Figure 6 Partial top view of a display device provided in some embodiments of the present application;

[0024] Figure 7 Partial cross-sectional view of a display device provided in some embodiments of the present application;

[0025] Figure 8 Partial perspective view of a display device provided in some other embodiments of the present application;

[0026] Figure 9 Partial top view of a display device provided in some other embodiments of the present application;

[0027] Figure 10 Partial perspective view of a display device provided in some other embodiments of the present application.

[0028] Reference numerals:

[0029] 100, display device; 101, display panel; 102, backlight module;

[0030] 1, backplane; 11, clamping portion; 12, positioning portion;

[0031] 2, light source;

[0032] 3, diffuser plate;

[0033] 4. Transparent support member; 41. First part; 42. Second part; 43. Boss;

[0034] 5. Substrate; 51. First card hole; 52. Second card hole; 53. Positioning hole;

[0035] 6. Elastic support member; 61. Deformation part; 62. Connection part;

[0036] 7. Reflective sheet. Detailed implementation manner

[0037] In order to more clearly understand the above objects, features and advantages of the present application, the solution of the present application will be further described below. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0039] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0040] In the description of the embodiments of the present application, the term "and / or" refers to and encompasses any and all possible combinations of one or more of the associated listed items. The term "and / or" is a relational term describing the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the associated objects before and after.

[0041] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, "connected" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the components are connected to each other and the relative position relationship after connection remains unchanged. In addition, the orientation terms mentioned in the embodiments of the present application, such as "inside", "outside", etc., are only with reference to the direction of the accompanying drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present application, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as a limitation to the embodiments of the present application.

[0042] In the description of the embodiments of the present application, the term "comprising", "including" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0043] In the related art, when the light source of a display device irradiates a support member for supporting a diffusion plate, due to reflection or refraction of the support member, etc., the propagation path of the light emitted from the support member is different from the original light propagation path, resulting in uneven light distribution, thereby forming a shadow on the diffusion plate, and further reducing the display quality of the display device.

[0044] Please refer to Figure 1 , Figure 1 which is a schematic diagram of the support member in the related art. The cross-section of the support member in the related art is formed as a circle. When the light emitted by the light source passes through the support member, the direction of the emitted light has a converging tendency, resulting in uneven distribution of the light emitted from the support member.

[0045] To solve the above technical problems, the embodiments of the present application provide a display device.

[0046] Please refer to Figure 2 and Figure 3 , Figure 2 which is a schematic diagram of the display device provided by some embodiments of the present application. Figure 3Cross-sectional view of a display device provided by some embodiments of the present application. The display device 100 may be a liquid crystal display device. The display device 100 may include a display panel 101 and a backlight module 102.

[0047] Among them, the display panel 101 may be used to display images, and the backlight module 102 may include a backplane 1. The backplane 1 may be disposed on a side facing away from the display surface of the display panel 101.

[0048] The display panel 101 is used to display image information such as text and images. The display panel 101 may include a display area and a circuit board located on one side of the display area, and the entire display panel 101 is driven and displayed through the circuit board.

[0049] The display panel 101 is a main component of the display device 100, which mainly may include a liquid crystal display panel, a color filter (CF) substrate of the liquid crystal display panel, a thin film transistor (TFT) substrate (also called an array substrate), and a liquid crystal (LC, Liquid Crystal) layer. The liquid crystal layer is located between the color filter substrate and the array substrate. Among them, data lines and scan lines are provided on the thin film transistor substrate, and the direction of liquid crystal molecules is controlled by the energization or non-energization of the data lines and scan lines, so that the light of the light source 2 is emitted through the color filter substrate and a preset color picture is generated.

[0050] Since the liquid crystal display panel itself cannot emit light, in order to enable 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 is disposed on a side facing away from the display surface of the display panel 101, and the backplane 1 has a supporting and carrying function. The light source 2 is used to generate light, and the light source 2 is configured to provide backlight to the display panel 101.

[0051] It can be understood that the backlight module 102 is 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.

[0052] In some embodiments, the backplane 1 may be an aluminum plate, a printed circuit board (PCB), etc. The backplane 1 may be used to support the light source 2, and the backplane 1 may also play a role in dissipating heat from the light source 2. The light source 2 may be a light emitting diode (LED), a mini light emitting diode (MiniLED), or a micro light emitting diode (Micro LED).

[0053] The number of light sources 2 can be multiple, and the multiple light sources 2 can be arranged on one side of the backplane 1 facing the display panel 101 at intervals, so that the light sources 2 can provide backlight for the display panel 101.

[0054] Among them, the light source 2 can be a lamp bead or a lamp strip, etc., and the multiple light sources 2 can be fixed on the backplane 1 by means of snap connection, screw connection, etc.

[0055] The backlight module 102 can also include a diffusion plate 3. The diffusion plate 3 can be arranged on the side of the light source 2 close to the display panel 101 and at a certain distance from the light source 2. That is, the diffusion plate 3 is arranged at intervals on the side of the light source 2 close to the display panel 101. The setting of this distance can enable sufficient light mixing among the multiple light sources 2. Since the function of the diffusion plate 3 is to dissipate heat from the incident light, making the light passing through the diffusion plate 3 more uniform, thereby making the brightness of the display device 100 more uniform and being conducive to reducing the phenomenon of uneven brightness.

[0056] The diffusion plate 3 can be provided with a scattering particle material. When light is incident on the scattering particle material, refraction and reflection will continuously occur, thereby achieving the effect of scattering the light and realizing the function of uniform light.

[0057] Among them, the diffusion plate 3 can be formed by an extrusion process.

[0058] Please continue to refer to Figure 3 , the backlight module 102 can also include a reflective sheet 7. The reflective sheet 7 can be arranged on the side of the backplane 1 close to the display panel 101. By setting the reflective sheet 7, the light emitted by the light source 2 can be reflected and guided to the surface of the display panel 101, which is conducive to improving the brightness and contrast of the display device 100 and making the image displayed by the display device 100 clearer. At the same time, the reflective sheet 7 can also help control the direction of light, so as to ensure that the light can be evenly irradiated on the entire surface of the display panel 101, which is conducive to improving the display effect of the display device 100.

[0059] Please continue to refer to Figure 3 , the backlight module 102 can also include a transparent support 4. One end of the transparent support 4 abuts against the diffusion plate 3, and the other end is connected to the backplane 1. By setting the transparent support 4, the light emitted by the light source 2 can pass through the transparent support 4, and it can also prevent the diffusion plate 3 from collapsing due to its own weight, thereby being conducive to ensuring the diffusion effect of the diffusion plate 3 and the reliability of use.

[0060] Please continue to refer to Figure 3, 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 remote from the first portion 41 abuts against the diffusion plate 3. Specifically, 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 diffusion plate 3. The first portion 41 is for connecting with the back plate 1, and the second portion 42 is for abutting against the diffusion plate 3.

[0061] In the direction from the back plate 1 to the diffusion plate 3, the cross-sectional area of the first portion 41 may gradually decrease. In the direction from the diffusion plate 3 to the back plate 1, the cross-sectional area of the second portion 42 gradually decreases. Specifically, the cross-section of the first portion 41 and the cross-section of the second portion 42 are both substantially parallel to the back plate 1, and the connection portion of the first portion 41 and the second portion 42 is the location where the cross-sectional areas of the first portion 41 and the second portion 42 are the smallest.

[0062] The minimum cross-sectional area of the second portion 42 is the same as the minimum cross-sectional area of the first portion 41, which can enable the first portion 41 and the second portion 42 to be smoothly connected.

[0063] Thus, the outline of the orthographic projection of the transparent support member 4 on the plane perpendicular to the back plate 1 and the diffusion plate 3 may have depressions on opposite sides. Therefore, when the light emitted by the light source 2 is incident on 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 can be evenly distributed after passing through the transparent support member 4, improving the problem of the presence of shadows on the diffusion plate 3, which is beneficial to improving the display quality of the display device 100.

[0064] For the display device 100 according to the embodiment of the present application, by making the cross-sectional area of the first portion 41 of the transparent support member 4 gradually decrease in the direction from the back plate 1 to the diffusion plate 3, and the cross-sectional area of the second portion 42 gradually decrease in the direction from the diffusion plate 3 to the back plate 1, when the light emitted by the light source 2 is incident on 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. Thus, the phenomenon of the light emitted from the transparent support member 4 forming shadows on the diffusion plate 3 can be reduced, enabling the light to evenly irradiate the entire surface of the display panel 101, which is beneficial to improving the display effect and display quality of the display device 100.

[0065] Please refer to Figure 3 and Figure 4 , Figure 4 which is a schematic diagram of the transparent support member provided by some embodiments of the present application. In some embodiments, the projection of the second portion 42 on the back plate 1 may be located within the projection of the first portion 41 on the back plate 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.

[0066] The radius of curvature r of the side edge of the transparent support member 4 satisfies: (2×(n + 1)×L) / sinα < r < ((n + 1)×L) / sinα. Wherein, 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 part 41 and the outermost endpoints of the second part 42 and the plane perpendicular to the diffusion plate 3 and the back plate 1.

[0067] It should be noted that the material of the transparent support member 4 may include one or more of epoxy resin, polystyrene, methyl methacrylate-styrene copolymer, polymethyl, methyl methacrylate, etc., and n is the refractive index of the above-mentioned material itself 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.

[0068] Thus, 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 can have a good light scattering effect, so that the light emitted from the transparent support member 4 can be evenly distributed, which is conducive to ensuring the display quality of the display device 100 and improving the user experience.

[0069] Please continue to refer to Figure 3 and Figure 4 , in some embodiments, the length f of the side edge of the transparent support member 4 satisfies: 0.9×D < f < D. Wherein, D is the vertical distance between the reflector 7 and the diffusion plate 3. Specifically, 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.

[0070] Thus, by further restricting the length f of the side edge of the transparent support member 4, while ensuring the support effect on the diffusion plate 3, the light emitted from the transparent support member 4 can be evenly distributed, which can further ensure the display quality of the display device 100 and is conducive to further improving the user experience.

[0071] Please continue to refer to Figure 3 and Figure 4 , 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 as 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, avoiding damage to the diffusion plate 3 by the transparent support member 4, and further being conducive to improving the reliability of the support of the transparent support member 4.

[0072] It should be noted that the outer surface of the boss 43 can also be formed into other shapes.

[0073] Please refer to Figure 3 - 5 , Figure 5 which is a partial perspective view of a display device provided by 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 backplane 1 close to the display panel 101 and is detachably connected to the backplane 1. The transparent support 4 is disposed on a side of the substrate 5 close to the display panel 101. Specifically, the substrate 5 and the backplane 1 may be detachably connected by means of snap connection, fastener connection, etc. By detachably connecting the substrate 5 connected to the transparent support 4 to the backplane 1, it is convenient to replace and repair the substrate 5 and the transparent support 4, which is beneficial to reducing the repair cost of the display device 100 and making the maintainability of the display device 100 better.

[0074] Exemplarily, the orthographic projection of the transparent support 4 on the backplane 1 may be located within the orthographic projection of the substrate 5 on the backplane 1. Thus, the transparent support 4 can increase the contact area with the backplane 1 through the substrate 5, so that the transparent support 4 can be better fixed on the backplane 1, and the possibility of the transparent support 4 breaking can be reduced.

[0075] Exemplarily, the transparent support 4 and the substrate 5 may be an integrally formed part. Such a setting is beneficial to improving the assembly efficiency of the display device 100.

[0076] Please refer to Figure 6 and Figure 7 , Figure 6 which is a partial top view of a display device provided by some embodiments of the present application, Figure 7 which is a partial cross-sectional view of a display device provided by some embodiments of the present application. In some embodiments, a first card hole 51 and a second card hole 52 may be formed on the substrate 5. The first card hole 51 and the second card hole 52 communicate with each other, and the aperture of the first card hole 51 is larger than the aperture of the second card hole 52. A card connection portion 11 is formed on the backplane 1, and the card connection portion 11 is in snap-fit connection with the second card hole 52. Specifically, when the substrate 5 is connected to the backplane 1, the card connection portion 11 on the backplane 1 extends into the first card hole 51, and the card connection portion 11 extends into the second card hole 52 through the connection portion of the first card hole 51 and the second card hole 52, so that the second card hole 52 is in snap-fit connection with the card connection portion 11, thereby connecting the substrate 5 to the backplane 1.

[0077] Thus, through the snap-fit connection between the card connection portion 11 and the second card hole 52, the substrate 5 and the backplane 1 can be detachably connected, and the connection method is simple and convenient for assembly, which is beneficial to improving the assembly efficiency of the display device 100.

[0078] It should be noted that the first card hole 51 and the second card hole 52 may also be provided on the backplane 1, and a clamping member that is clamped and matched with the second card hole 52 is provided on the substrate 5. The present application does not limit this.

[0079] Exemplarily, the clamping portion 11 may be formed on the backplane 1 by stamping. Such a setting is beneficial to reducing the manufacturing difficulty of the backplane 1.

[0080] Please continue to refer to Figure 6 and Figure 7 , in some embodiments, a positioning hole 53 may also be formed on the substrate 5. The positioning hole 53 is spaced apart from the first card hole 51 and the second card hole 52. A positioning portion 12 may be formed on the backplane 1. The positioning portion 12 is clamped and matched with the positioning hole 53. Specifically, when the substrate 5 is connected to the backplane 1, first insert the clamping portion 11 into the first card hole 51, and then move the clamping portion 11 in a direction close to the second card hole 52. When the positioning portion 12 is clamped and matched with the positioning hole 53, the clamping portion 11 can be clamped with the second card hole 52.

[0081] Thus, through the cooperation between the positioning portion 12 and the positioning hole 53, the clamping portion 11 can be directly assembled with the second card hole 52, which is beneficial to reducing the assembly difficulty and improving the connection reliability between the backplane 1 and the substrate 5.

[0082] It should be noted that the positioning hole 53 may also be provided on the backplane 1, and a clamping member that is clamped and matched with the positioning hole 53 is provided on the substrate 5. The present application does not limit this.

[0083] Exemplarily, the positioning portion 12 may also be formed on the backplane 1 by stamping. Such a setting is beneficial to reducing the manufacturing difficulty of the backplane 1.

[0084] Please refer to Figure 8 and Figure 9 , Figure 8 is a partial perspective view of a display device provided in some other embodiments of the present application, Figure 9 is a partial top view of a display device provided in some 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 opposite first and second ends. 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 ends changes when the elastic support member 6 bears pressure. Specifically, the elastic support member 6 can undergo compressive deformation when bearing pressure and can recover its deformation after the external force is removed.

[0085] Thus, when the user performs a touch operation or during transportation, the diffusion plate 3 moves towards the backplane 1, and at this time, the elastic support member 6 is compressed under pressure. Since the elastic support member 6 can deform, large undulating deformations between the display panel 101 and the diffusion plate 3 can be avoided, which is beneficial to improving the structural stability of the display device 100. At the same time, the possibility of the transparent support member 4 breaking can also be reduced, which is beneficial to improving the service life of the transparent support member 4.

[0086] Among them, the elastic support member 6 can be detachably connected to the substrate 5 by means of snap connection, fastener connection, etc., or can be fixedly connected to the substrate 5 by means of adhesives, etc. It can also be that the elastic support member 6, the substrate 5, and the transparent support member 4 are integrally formed. The elastic support member 6 can be made of a transparent material, for example, it can be glass fiber, etc.

[0087] Please continue to refer to Figure 8 and Figure 9 , in some embodiments, the elastic support member 6 can include a deformation portion 61 and a connection portion 62. The transparent support member 4 can be disposed on a side of the connection portion 62 close to the display panel 101, and deformation portions 61 are connected to both opposite ends of the connection portion 62. The deformation portion 61 is disposed at the edge of the substrate 5, and the deformation portion 61 extends towards the diffusion plate 3. Thus, a hollow space can be formed between the connection portion 62 and the backplane 1, thereby increasing the deformable range of the elastic portion. At the same time, since the deformation portion 61 is disposed at the edge of the substrate 5, the supporting ability of the elastic support portion for the transparent support member 4 can be improved.

[0088] Please continue to refer to Figure 9 , in some embodiments, the cross-section of the transparent support member 4 can be formed into a circle. Such a setting can improve the uniformity of the light emitted by the light source 2 passing through the transparent support member 4. It is also beneficial to reduce the manufacturing difficulty of the transparent support member 4, thereby being beneficial to reducing the manufacturing cost of the display device 100.

[0089] Please refer to Figure 10 , Figure 10 is a partial perspective view of a display device provided in some other embodiments of the present application. In some embodiments, the cross-section of the transparent support member 4 can be formed into a polygon. Specifically, the cross-section of the transparent support member 4 can be formed into shapes such as a quadrilateral, a pentagon, a hexagon, etc. Such a setting can reduce the manufacturing difficulty of the transparent support member 4, thereby being beneficial to reducing the manufacturing cost of the display device 100.

[0090] In the description of this specification, specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0091] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily conceive of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims described above.

Claims

1. A display device, characterized in that, Comprising: A display panel for displaying an image; A backlight module disposed on a side facing away from the display surface of the display panel, the backlight module comprising: A back plate; A light source disposed on a side of the back plate close to the display panel; A diffusion plate spaced apart and disposed on a side of the light source close to the display panel; A transparent support member including a first portion and a second portion, one end of the first portion being connected to the back plate and the other end being connected to the second portion, and the end of the second portion remote from the first portion abutting against the diffusion plate. Along the direction from the back plate to the diffusion plate, the cross-sectional area of the first portion gradually decreases, and along the direction from the diffusion plate to the back plate, the cross-sectional area of the second portion gradually decreases, and the minimum cross-sectional area of the second portion is the same as the minimum cross-sectional area of the first portion.

2. The display device according to claim 1, characterized in that, The projection of the second portion on the back plate is located within the projection of the first portion on the back plate, and the radius of curvature r of the side edge of the transparent support member satisfies: (2×(n + 1)×L) / sinα < r < ((n + 1)×L) / sinα; Wherein, n is the refractive index of the material of the transparent support member, L is the distance between the transparent support member and the light source, and α is the angle between the connection line between the outermost end points of the first portion and the outermost end points of the second portion and the plane perpendicular to the diffusion plate and the back plate.

3. The display device according to claim 2, characterized in that, The backlight module further includes a reflective sheet disposed on the back plate, and the length f of the side edge of the transparent support member satisfies: 0.9×D < f < D; Wherein, D is the perpendicular distance between the reflective sheet and the diffusion plate.

4. The display device according to any one of claims 1 to 3, characterized in that, The 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.

5. The display device according to any one of claims 1 to 3, characterized in that One end of the second portion close to the diffusion plate has a boss, and the outer surface of the boss is formed as a hemispherical surface.

6. The display device according to any one of claims 1 to 3, characterized in that, 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.

7. The display device according to claim 6, 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 the aperture of the first card hole is larger than the aperture of the second card hole. A card connection portion is formed on the back plate, and the card connection portion is in snap-fit connection with the second card hole.

8. The display device according to claim 7, wherein A positioning hole is further formed on the substrate, the positioning hole is spaced apart from the first card hole and the second card hole, and a positioning portion is formed on the back plate, and the positioning portion is in snap-fit connection with the positioning hole.

9. The display device according to claim 6, characterized in that The backlight module further includes an elastic support member having opposite first and second ends, the first end being connected to the substrate and the second end being connected to the transparent support member, and the distance between the first ends changes when the elastic support member bears pressure.

10. The display device according to claim 9, wherein The elastic support member includes a deformation portion and a connection portion. The transparent support member is disposed on a side of the connection portion close to the display panel. Both opposite ends of the connection portion are connected to the deformation portion. The deformation portion is disposed at an edge of the substrate, and the deformation portion extends in a direction close to the diffusion plate.

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