Backlight module and display device

Abstract

The embodiment of the utility model provides a backlight module and a display device. The backlight module comprises a back plate, a light source, a supporting assembly and an optical assembly. The back plate comprises a bottom plate, the optical assembly and the bottom plate are oppositely arranged, and the light source and the supporting assembly are arranged on the side, facing the optical assembly, of the bottom plate. The supporting assembly comprises a fixing piece and a supporting piece which are connected, the side, away from the supporting piece, of the fixing piece is connected with the bottom plate, the side, away from the fixing piece, of the supporting piece makes contact with the optical assembly, and the supporting piece can move relative to the fixing piece while keeping the connecting state with the fixing piece so as to adjust the height of the supporting assembly. The backlight module is short in development period, high in development efficiency and low in development cost.

Description

Technical Field

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

[0002] Backlight modules are divided into direct-type backlight modules and side-entry backlight modules. Direct-type backlight modules are widely praised because they can achieve multi-zone light control and improve picture quality. Direct-type backlight modules are mainly composed of backplane, light source, support, optical components and middle frame. The mixing distance of direct-type backlight modules is the distance from the upper surface of the bottom plate of the backplane to the lower surface of the optical components, that is, the OD value. The OD value has a great influence on the thickness of the TV. In the development process of new backlight module products, when the OD value needs to be adjusted, the height and shape of the support usually need to be adjusted, which leads to the need to re-proof the backplane installed with the support, which increases the investment in the scheme design stage and prolongs the development cycle. Summary of the invention

[0003] Based on this, the embodiments of the present application provide a backlight module and a display device.

[0004] In a first aspect, an embodiment of the present application provides a backlight module, including a back plate, a light source, a support component and an optical component;

[0005] The back plate comprises a bottom plate, the optical assembly is arranged opposite to the bottom plate, and the light source and the supporting assembly are both arranged on a side of the bottom plate facing the optical assembly;

[0006] The support assembly includes a connected fixing member and a supporting member, wherein the side of the fixing member facing away from the supporting member is connected to the base plate, and the side of the supporting member facing away from the fixing member is in contact with the optical assembly, and the supporting member can be displaced relative to the fixing member while remaining connected to the fixing member to adjust the height of the support assembly.

[0007] The fixing member and the supporting member are connected by threaded connection.

[0008] In some embodiments, the support member is provided with a hollow structure, the inner surface of the hollow structure is provided with an internal thread, the outer surface of the fixing member is provided with an external thread, and the internal thread of the support member and the external thread of the fixing member match each other.

[0009] In some embodiments, the support member includes a connected column and a cone, the column is provided with the hollow structure, and the vertex of the cone is in contact with the optical component; and / or

[0010] The outer surface of the cone is a frosted surface; and / or

[0011] The outer surface of the column is a frosted surface.

[0012] In some embodiments, the fixing member includes a first limiting portion, a first connecting portion, a second limiting portion and a second connecting portion connected in sequence, the first connecting portion is used to connect the bottom plate, and the second connecting portion is used to connect the supporting member;

[0013] A through hole is provided on the bottom plate of the back plate, the first connecting portion is located in the through hole, the second limiting portion is located on the side of the bottom plate facing the optical component, and the first limiting portion is located on the side of the bottom plate away from the optical component.

[0014] In some embodiments, the base plate includes a light-emitting area for installing a light source and a supporting assembly, and the light-emitting area includes a central area and a first peripheral area and a second peripheral area arranged on both sides of the central area; the height of the supporting assembly located in the first peripheral area is less than the height of the supporting assembly located in the central area, and the height of the supporting assembly located in the second peripheral area is less than the height of the supporting assembly located in the central area.

[0015] In some embodiments, the base plate also includes a supporting area located at the periphery of the light-emitting area and a connecting area located between the light-emitting area and the supporting area, wherein the supporting area is used to support the optical component, and the distance between the light-emitting area of ​​the base plate and the optical component is greater than the distance between the supporting area of ​​the base plate and the optical component.

[0016] In some embodiments, the distribution density of the light sources in the first peripheral area is greater than the distribution density of the light sources in the central area, and the distribution density of the light sources in the second peripheral area is greater than the distribution density of the light sources in the central area.

[0017] In some embodiments, a plurality of light sources are disposed in the first peripheral area, the second peripheral area, and the central area of ​​the bottom plate, and the plurality of light sources in each area are arranged in a plurality of rows along a first direction and in a plurality of columns along a second direction, and the first direction and the second direction are perpendicular to each other;

[0018] In the first direction, the distance between two adjacent light sources in the first peripheral area and the distance between two adjacent light sources in the second peripheral area are both smaller than the distance between two adjacent light sources in the central area;

[0019] In the second direction, a distance between two adjacent light sources in the first peripheral region and a distance between two adjacent light sources in the second peripheral region are both smaller than a distance between two adjacent light sources in the central region.

[0020] In a second aspect, an embodiment of the present application provides a display device, including a display panel and a backlight module, wherein the display panel includes a light incident side and a light emitting side that are relatively arranged, and the backlight module is arranged on the light incident side of the display panel, and the backlight module is the backlight module described above.

[0021] The backlight module provided in the embodiment of the present application includes a back panel, a light source, a support assembly and an optical assembly, wherein the support assembly is arranged between the bottom plate of the back panel and the optical assembly, and the support assembly includes a fixing member connected to the bottom plate and a supporting member in contact with the optical assembly. Since the supporting member can be displaced relative to the fixing member while maintaining a connection with the fixing member, the height of the supporting assembly can be changed, thereby enabling rapid construction and verification of solutions for different light mixing distances, shortening the development cycle of the backlight module, improving development efficiency, reducing proofing during the development process of the backlight module, reducing development costs, and improving the development accuracy of new backlight module products through precise adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments.

[0023] Figure 1 This is a schematic diagram of the first structure of the backlight module provided in an embodiment of the present application.

[0024] Figure 2 A schematic diagram of a first distribution of light sources and supporting components on a base plate provided in an embodiment of the present application.

[0025] Figure 3 A schematic diagram of the support assembly and back panel after assembly according to an embodiment of the present application.

[0026] Figure 4 A schematic diagram of the structure of a support member in a support assembly provided in an embodiment of the present application.

[0027] Figure 5 A schematic diagram of the structure of a fixing member in a support assembly provided in an embodiment of the present application.

[0028] Figure 6 A schematic diagram of a second distribution of light sources and support components on a base plate provided in an embodiment of the present application.

[0029] Figure 7 A second structural schematic diagram of the backlight module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0031] In this application, "and / or" describes the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural.

[0032] In the present application, "at least one" means one or more, and "plurality" means two or more. "At least one", "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, "at least one of a, b or c", or "at least one of a, b and c" can all mean: a, b, c, a+b, a+c, b+c, or a+b+c, where a, b, c can be single or multiple, respectively.

[0033] In the present application, when another layer is formed "on" a certain layer, the so-called "on" is a broad concept, which may indicate that the formed another layer is adjacent to the certain layer, or may indicate that there are other spacing structural layers between the another layer and the certain layer. For example, when a second electrode is formed "on" the first carrier functional layer, the so-called "on" may indicate that the formed second electrode is adjacent to the first carrier functional layer, or may indicate that there are other spacing structural layers between the second electrode and the first carrier functional layer, such as a light-emitting layer.

[0034] "Parts by weight" refers to the basic unit of measurement for expressing the mass ratio of multiple components. 1 part can represent any unit mass, such as 1g, 1Kg, 2g, 2Kg, etc. If we say that the weight of component A is a parts and the weight of component B is b parts, it means the ratio of the mass of component A to the mass of component B is a:b. Or, it means that the mass of component A is aK and the mass of component B is bK (K is an arbitrary number, indicating a multiple factor). It should not be misunderstood that, unlike the weight parts, the sum of the weight parts of all components is not limited to 100 parts.

[0035] Various embodiments of the present application may be presented in the form of a range; it should be understood that the description in the form of a range is only for convenience and brevity, and should not be understood as a rigid limitation on the scope of the present application; therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single numerical values ​​within the range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6. In addition, whenever a numerical range is indicated herein, it is meant to include any cited number (fractional or integer) within the indicated range.

[0036] See also Figure 1 , Figure 2 and Figure 3 The embodiment of the present application provides a backlight module 100 , including a back panel 10 , a light source 40 , a supporting component 50 and an optical component 130 .

[0037] See also Figure 1 The back panel 10 includes a bottom panel 20 and a side panel 30 connected to each other. The optical component 130 is arranged opposite to the bottom panel 20 . The light source 40 and the supporting component 50 are both arranged on a side of the bottom panel 20 facing the optical component 130 .

[0038] See also Figure 3 The support assembly 50 includes a connected fixing member 70 and a supporting member 60, wherein the side of the fixing member 70 facing away from the supporting member 60 is connected to the base plate 20, and the side of the supporting member 60 facing away from the fixing member 70 is in contact with the optical assembly 130, and the supporting member 60 can be displaced relative to the fixing member 70 while remaining connected to the fixing member 70 to adjust the height of the support assembly 50.

[0039] It should be noted that the height of the support assembly 50 refers to the height of the support assembly 50 in the direction from the base plate 20 to the optical assembly 130, that is, the distance between one end of the fixing member 70 away from the support member 60 and the other end of the supporting member 60 away from the fixing member 70.

[0040] The backlight module 100 provided in the embodiment of the present application includes a back panel 10, a light source 40, a support assembly 50 and an optical assembly 130, wherein the support assembly 50 is arranged between the base plate 20 of the back panel 10 and the optical assembly 130, and the support assembly 50 includes a fixing member 70 connected to the base plate 20 and a support member 60 in contact with the optical assembly 130. Since the support member 60 can be displaced relative to the fixing member 70 while maintaining a connection with the fixing member 70, the height of the support assembly 50 can be changed, so that solutions for different mixing light distances can be quickly built and verified, thereby shortening the development cycle of the backlight module 100, improving development efficiency, reducing proofing during the development process of the backlight module 100, reducing development costs, and improving the development accuracy of new products of the backlight module 100 through precise adjustment.

[0041] It can be understood that when the support member 60 moves in a direction away from the fixing member 70 , the height of the support assembly 50 increases; and when the support member 60 moves in a direction close to the fixing member 70 , the height of the support assembly 50 decreases.

[0042] Exemplarily, the materials of the fixing member 70 and the supporting member 60 are both light-transmitting materials, such as polycarbonate (PC), polymethyl methacrylate (PMMA), etc.

[0043] It should be noted that, in the embodiment of the present application, “the height of the support assembly 50 ” refers to the distance between the top of the support member 60 and the bottom plate 20 .

[0044] See also Figure 3 , the fixing member 70 and the support member 60 are connected by a threaded connection. It is understandable that when the fixing member 70 and the support member 60 are connected by a threaded connection, the support member 60 can be rotated to displace the support member 60 relative to the fixing member 70, thereby changing the height of the support assembly 50.

[0045] See also Figure 4 The support member 60 is provided with a hollow structure 615, the inner surface of the hollow structure 615 is provided with an internal thread, the outer surface of the fixing member 70 is provided with an external thread, and the internal thread of the support member 60 and the external thread of the fixing member 70 match each other.

[0046] See also Figure 4 The support member 60 includes a connected column 61 and a cone 62, the column 61 is provided with the hollow structure 615, and the vertex of the cone 62 is in contact with the optical component 130. Exemplarily, the column 61 can be a cylinder 61 or a prism, and the cone 62 can be a cone or a pyramid.

[0047] See also Figure 4The outer surface of the cone 62 may be a frosted surface.

[0048] See also Figure 4 The outer surface of the column 61 can be a frosted surface.

[0049] It is understandable that since the frosted surface is relatively rough and has a fine concave-convex structure, the embodiment of the present application can improve the light scattering effect and thus improve the uniformity of the light output by setting the outer surface of the column 61 and / or cone 62 of the support member 60 to a frosted surface.

[0050] See also Figure 5 The fixing member 70 includes a first limiting portion 73, a first connecting portion 71, a second limiting portion 74 and a second connecting portion 72 which are connected in sequence. The first connecting portion 71 is used to connect the base plate 20, and the second connecting portion 72 is used to connect the supporting member 60.

[0051] Exemplarily, the first limiting portion 73, the first connecting portion 71, the second limiting portion 74 and the second connecting portion 72 are all made of plastic material, and the first limiting portion 73, the first connecting portion 71, the second limiting portion 74 and the second connecting portion 72 can be an integral structure.

[0052] Exemplarily, in a direction parallel to the bottom plate 20 , the cross-sectional area of ​​the first limiting portion 73 and the cross-sectional area of ​​the second limiting portion 74 are both greater than the cross-sectional area of ​​the first connecting portion 71 .

[0053] See also Figure 3 A through hole 205 is provided on the bottom plate 20 of the back plate 10, the first connecting portion 71 is located in the through hole 205, the second limiting portion 74 is located on the side of the bottom plate 20 facing the optical component 130, and the first limiting portion 73 is located on the side of the bottom plate 20 away from the optical component 130.

[0054] Exemplarily, the through hole 205 can be a circular hole, and the diameter of the through hole 205 is d1; the diameter of the first connecting portion 71 is d2. At this time, the relationship between d1 and d2 needs to satisfy d2<d1<d2+1mm, so that the first connecting portion 71 can pass through the through hole 205 and can avoid shaking of the first connecting portion 71 in the through hole 205.

[0055] See also Figure 5, a groove 75 is provided on the side of the first limiting portion 73 away from the first connecting portion 71. It can be understood that when a groove 75 is provided on the side of the first limiting portion 73 away from the first connecting portion 71, it means that a hollow structure 615 is provided on the first limiting portion 73. Therefore, when the fixing member 70 and the back plate 10 are installed, the first limiting portion 73 can be compressed by an external force, so that the volume of the first limiting portion 73 is reduced. When the first limiting portion 73 passes through the through hole 205 on the bottom plate 20 and reaches the side of the bottom plate 20 away from the optical component 130, the volume of the first limiting portion 73 increases and returns to the volume before compression, thereby achieving a limiting effect.

[0056] See also Figure 5 The second limiting portion 74 may be in the shape of a flat plate. When the surface of the bottom plate 20 facing the optical component 130 is a plane, the second limiting portion 74 may be in close contact with the bottom plate 20, thereby achieving a better limiting effect.

[0057] See also Figure 1 , Figure 2 , Figure 6 and Figure 7 The base plate 20 includes a light emitting area 21 for mounting the light source 40 and the supporting assembly 50 , and the light emitting area 21 includes a central area 221 and a first peripheral area 222 and a second peripheral area 223 arranged on both sides of the central area 221 .

[0058] See also Figure 1 and Figure 2 In some embodiments, the height of the support assembly 50 located in the first peripheral area 222, the height of the support assembly 50 located in the second peripheral area 223, and the height of the support assembly 50 located in the central area 221 are equal.

[0059] See also Figure 6 and Figure 7 In some other embodiments, the height of the support assembly 50 in the first peripheral area 222 is less than the height of the support assembly 50 in the central area 221, and the height of the support assembly 50 in the second peripheral area 223 is less than the height of the support assembly 50 in the central area 221. Exemplarily, the height of the support assembly 50 in the first peripheral area 222 is equal to the height of the support assembly 50 in the second peripheral area 223.

[0060] It can be understood that when the height of the supporting assembly 50 in the first peripheral area 222 and the second peripheral area 223 is relatively small, at this time, the thickness of the portion of the backlight module 100 corresponding to the first peripheral area 222 and the second peripheral area 223 is relatively small. In actual applications, the portion of the backlight module 100 corresponding to the first peripheral area 222 and the second peripheral area 223 can respectively correspond to the left and right sides of the display device (such as a TV), thereby reducing the thickness of the display device in terms of the user's visual effect and improving the user experience.

[0061] See also Figure 1 The base plate 20 also includes a supporting area 23 located at the periphery of the light-emitting area 21 and a connecting area 22 located between the light-emitting area 21 and the supporting area 23, wherein the supporting area 23 is used to support the optical component 130, and the distance between the light-emitting area 21 of the base plate 20 and the optical component 130 is greater than the distance between the supporting area 23 of the base plate 20 and the optical component 130.

[0062] See also Figure 2 In some embodiments, the distribution density of the light sources 40 located in the first peripheral area 222 is equal to the distribution density of the light sources 40 located in the central area 221, and the distribution density of the light sources 40 located in the second peripheral area 223 is equal to the distribution density of the light sources 40 located in the central area 221.

[0063] See also Figure 6 and Figure 7 In other embodiments, the distribution density of the light sources 40 located in the first peripheral area 222 is greater than the distribution density of the light sources 40 located in the central area 221, and the distribution density of the light sources 40 located in the second peripheral area 223 is greater than the distribution density of the light sources 40 located in the central area 221.

[0064] It should be noted that when the height of the supporting assembly 50 in the central area 221 is relatively large and the height of the supporting assembly 50 in the first peripheral area 222 and the second peripheral area 223 is relatively small, it means that the light mixing distance of the central area 221 is relatively large and the light diffusion effect is relatively good, while the light mixing distance of the first peripheral area 222 and the second peripheral area 223 is relatively small and the light diffusion effect is relatively poor. Therefore, by increasing the distribution density of the light sources 40 in the first peripheral area 222 and the second peripheral area 223, it is known that when the distribution density of the light sources 40 is relatively large, the dark area between the light sources 40 is relatively small, and the brightness uniformity is increased. This is equivalent to achieving consistent light output uniformity in the central area 221, the first peripheral area 222 and the second peripheral area 223 by comprehensively adjusting the height of the supporting assembly 50 and the distribution density of the light sources 40, and at the same time, being able to achieve thinning of the portions of the backlight module 100 corresponding to the first peripheral area 222 and the second peripheral area 223 to improve the visual effect.

[0065] Exemplarily, in order to ensure the consistency of the light output brightness in the central area 221, the first peripheral area 222 and the second peripheral area 223 of the backlight module 100, the brightness of the light emitted by a single light source 40 in the central area 221 can be controlled to be greater than the brightness of the light emitted by a single light source 40 in the first peripheral area 222 and the second peripheral area 223 by controlling factors such as current.

[0066] See also Figure 2 and Figure 7 A plurality of light sources 40 are disposed in the first peripheral area 222, the second peripheral area 223 and the central area 221 of the base plate 20. The plurality of light sources 40 in each area are arranged in several rows along the first direction X and in several columns along the second direction Y. The first direction X and the second direction Y are perpendicular to each other.

[0067] See also Figure 7 In the first direction X, the distance between two adjacent light sources 40 in the first peripheral area 222 and the distance between two adjacent light sources 40 in the second peripheral area 223 are both smaller than the distance between two adjacent light sources 40 in the central area 221 .

[0068] See also Figure 7 In some embodiments, in the first direction X, the distance between two adjacent light sources 40 in the first peripheral area 222 and the distance between two adjacent light sources 40 in the second peripheral area 223 are equal, both are P1, and the distance between two adjacent light sources 40 in the central area 221 is P3, and P1 is smaller than P3.

[0069] See also Figure 7In the second direction Y, the distance between two adjacent light sources 40 in the first peripheral area 222 and the distance between two adjacent light sources 40 in the second peripheral area 223 are both smaller than the distance between two adjacent light sources 40 in the central area 221.

[0070] See also Figure 7 In some embodiments, in the second direction Y, the distance between two adjacent light sources 40 in the first peripheral area 222 and the distance between two adjacent light sources 40 in the second peripheral area 223 are equal, both are P2, and the distance between two adjacent light sources 40 in the central area 221 is P4, and P2 is smaller than P4.

[0071] See also Figure 1 and Figure 6 The optical component 130 includes a diffusion plate 131 and an optical film 132 which are sequentially stacked in a direction from the base plate 20 to the optical component 130 .

[0072] Exemplarily, the optical film 132 may include at least one of a brightness enhancement film and a diffusion film.

[0073] See also Figure 1 and Figure 6 The backlight module 100 also includes a middle frame 80, which includes a frame body 81 and a first supporting portion 82 and a second supporting portion 83 connected to the frame body 81, and the first supporting portion 82 and the second supporting portion 83 are both arranged on the inner side of the frame body 81, wherein the first supporting portion 82 is arranged on the side of the optical component 130 away from the bottom plate 20, and the second supporting portion 83 is arranged on the side of the bottom plate 20 away from the optical component 130.

[0074] An embodiment of the present application also provides a display device, including a display panel and a backlight module, wherein the display panel includes a light incident side and a light emitting side that are relatively arranged, and the backlight module is arranged on the light incident side of the display panel, and the backlight module is the backlight module in any of the above embodiments.

[0075] Exemplarily, the display panel may be a liquid crystal display panel.

[0076] Exemplarily, the display device can be a terminal such as a mobile phone, a tablet computer, a television, or a gaming device, an augmented reality (AR) device, a virtual reality (VR) device, a data storage device, an audio playback device, a video playback device, a wearable device, or other device with a display screen, wherein the wearable device can be a smart bracelet, smart glasses, a smart watch, smart decoration, etc.

[0077] The backlight module and display device provided by the embodiments of the present application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A backlight module, characterized in that: Including a back panel, a light source, a supporting assembly and an optical assembly; The back plate comprises a bottom plate, the optical assembly is arranged opposite to the bottom plate, and the light source and the supporting assembly are both arranged on a side of the bottom plate facing the optical assembly; The support assembly includes a connected fixing member and a supporting member, wherein the side of the fixing member facing away from the supporting member is connected to the base plate, and the side of the supporting member facing away from the fixing member is in contact with the optical assembly, and the supporting member can be displaced relative to the fixing member while remaining connected to the fixing member to adjust the height of the support assembly.

2. The backlight module according to claim 1, characterized in that: The fixing member and the supporting member are connected by threaded connection.

3. The backlight module according to claim 2, characterized in that: The support member is provided with a hollow structure, the inner surface of the hollow structure is provided with an internal thread, the outer surface of the fixing member is provided with an external thread, and the internal thread of the support member and the external thread of the fixing member are matched.

4. The backlight module according to claim 3, characterized in that: The support member comprises a connected column and a cone, the column is provided with the hollow structure, and the apex of the cone is in contact with the optical component; and / or The outer surface of the cone is a frosted surface; and / or The outer surface of the column is a frosted surface.

5. The backlight module according to claim 1, characterized in that: The fixing member comprises a first limiting portion, a first connecting portion, a second limiting portion and a second connecting portion which are connected in sequence, the first connecting portion is used to connect the bottom plate, and the second connecting portion is used to connect the supporting member; A through hole is provided on the bottom plate of the back plate, the first connecting portion is located in the through hole, the second limiting portion is located on the side of the bottom plate facing the optical component, and the first limiting portion is located on the side of the bottom plate away from the optical component.

6. The backlight module according to any one of claims 1 to 5, characterized in that: The base plate includes a light-emitting area for installing a light source and a supporting assembly, and the light-emitting area includes a central area and a first peripheral area and a second peripheral area arranged on both sides of the central area; the height of the supporting assembly located in the first peripheral area is smaller than the height of the supporting assembly located in the central area, and the height of the supporting assembly located in the second peripheral area is smaller than the height of the supporting assembly located in the central area.

7. The backlight module according to claim 6, characterized in that: The distribution density of the light sources in the first peripheral area is greater than that in the central area, and the distribution density of the light sources in the second peripheral area is greater than that in the central area.

8. The backlight module according to claim 7, characterized in that: A plurality of light sources are arranged in the first peripheral area, the second peripheral area and the central area of ​​the bottom plate, and the plurality of light sources in each area are arranged in a plurality of rows along a first direction and in a plurality of columns along a second direction, and the first direction and the second direction are perpendicular to each other; In the first direction, the distance between two adjacent light sources in the first peripheral area and the distance between two adjacent light sources in the second peripheral area are both smaller than the distance between two adjacent light sources in the central area; In the second direction, a distance between two adjacent light sources in the first peripheral region and a distance between two adjacent light sources in the second peripheral region are both smaller than a distance between two adjacent light sources in the central region.

9. The backlight module according to claim 6, characterized in that: The base plate also includes a supporting area located at the periphery of the light-emitting area and a connecting area located between the light-emitting area and the supporting area, wherein the supporting area is used to support the optical component, and the distance between the light-emitting area of ​​the base plate and the optical component is greater than the distance between the supporting area of ​​the base plate and the optical component.

10. A display device, characterized in that: It comprises a display panel and a backlight module, wherein the display panel comprises a light incident side and a light emitting side which are arranged opposite to each other, and the backlight module is arranged on the light incident side of the display panel, and the backlight module is the backlight module according to any one of claims 1 to 9.

Images