Backlight structure and vehicle-mounted display module

Abstract

The utility model provides a backlight structure and a vehicle-mounted display module. The backlight structure comprises a metal plate frame and a light source assembly. The metal plate frame comprises a main plate and a supporting wall extending out of the periphery of the main plate in the first direction, and the main plate and the supporting wall are matched to form a containing space. The light source assembly is placed in the containing space and detachably connected with the supporting wall. According to the vehicle-mounted display module assembly, the overall framework of the backlight structure is formed by assembling single sheet metal parts, the part, namely a middle rubber frame, is removed, the thickness limitation of the part can be eliminated, the frame thickness of the overall framework can be reduced according to requirements, and therefore the backlight structure with a narrower frame is designed, and the frame of the vehicle-mounted display module assembly is narrower. According to the narrow-frame backlight structure, the aesthetic feeling of a user can be improved, the screen-to-body ratio can be increased, the customer satisfaction degree can be improved, meanwhile, the universality of the developed display module can be higher, the purpose of greatly reducing cost is achieved, and then the comprehensive competitiveness is improved.

Description

Technical Field

[0001] This utility model relates to the field of backlight structure technology, and in particular to a backlight structure and an in-vehicle display module. Background Technology

[0002] The backlight structure in automotive display modules is a crucial display component. Driven by the pursuit of narrow bezel display effects and versatility, developing even narrower display bezel designs is a key industry trend. Currently, when the overall architecture allows, a "base sheet metal + middle plastic frame" structure is often used. However, because the plastic frame is formed using injection molding, its thickness is limited. Therefore, it's difficult to reduce the overall bezel thickness in existing backlight structures, significantly reducing product versatility and impacting customers' pursuit of narrow bezels. Summary of the Invention

[0003] This utility model provides a backlight structure and an automotive display module to solve the problem that the bezel of the overall architecture in the existing backlight structure is difficult to reduce, which will greatly reduce the versatility of the product and affect customers' pursuit of narrow bezels.

[0004] A backlight structure, including a sheet metal frame and a light source assembly;

[0005] The sheet metal frame includes a main board and a support wall extending from the periphery of the main board along a first direction, wherein the main board and the support wall cooperate to form an accommodating space;

[0006] The light source assembly is placed within the accommodating space and is detachably connected to the supporting wall.

[0007] Preferably, either the light source assembly or the support wall is provided with a snap-fit ​​groove, and the other is provided with a snap-fit ​​protrusion. The snap-fit ​​protrusion engages with the snap-fit ​​groove, so that the light source assembly can be detachably installed in the accommodating space.

[0008] Preferably, the sheet metal frame further includes a sheet metal flange extending outward from the end of the support wall away from the motherboard;

[0009] The sheet metal flange is used to connect with the cover glass.

[0010] Preferably, the backlight structure further includes a sealing element, which wraps around the support wall and the motherboard to cover the snap-fit ​​groove.

[0011] Preferably, the support wall includes at least three connecting sidewalls; the at least three connecting sidewalls are arranged in a ring.

[0012] One of the connecting sidewalls is provided with a snap-fit ​​groove or snap-fit ​​protrusion;

[0013] The number of the snap-fit ​​slots and the number of the snap-fit ​​protrusions are both at least two. At least two snap-fit ​​slots and at least two snap-fit ​​protrusions are spaced apart along the second direction, and one snap-fit ​​slot is corresponding to one snap-fit ​​protrusion.

[0014] Preferably, the light source assembly includes an LED light strip and a light path control layer;

[0015] The LED light strip is fixed to one side wall of the support wall by a connector;

[0016] The optical path control layer is mounted on the motherboard, detachably connected to the support wall, and is correspondingly arranged with the LED light strip.

[0017] Preferably, the light source assembly further includes at least one of a brightness enhancement layer and a function enhancement layer;

[0018] The brightness enhancement layer is stacked on the optical path control layer;

[0019] The functional enhancement layer is stacked on the optical path control layer or the brightness enhancement layer.

[0020] An in-vehicle display module includes a cover glass, a FOG module, and the backlight structure.

[0021] The cover glass and the sheet metal frame of the backlight structure are connected by a first adhesive layer.

[0022] The FOG module is mounted on the cover glass via a second adhesive layer and is positioned correspondingly to the light source assembly of the backlight structure.

[0023] Preferably, the vehicle display module further includes a buffer; the buffer is disposed within the accommodating space and is located between the FOG module and the light source assembly.

[0024] Preferably, the vehicle-mounted display module further includes a first FPC and a second FPC;

[0025] The first end of the first FPC extends into the accommodating space of the backlight structure and is connected to the light source component of the backlight structure; the second end of the first FPC is attached to the backlight structure.

[0026] The second FPC wraps around the backlight structure, and the first end of the second FPC is connected to the FOG module. There is a gap between the second end of the second FPC and the backlight structure.

[0027] In this invention, the overall backlight structure is assembled from a single sheet metal component. Compared to the existing "bottom sheet metal + middle frame" structure, the middle frame component is eliminated. By using a sheet metal component, the thickness limitations of the component are removed, and the overall frame thickness can be reduced as needed, resulting in a narrower bezel backlight structure and a narrower bezel for the automotive display module assembly. This narrow bezel backlight structure enhances user aesthetics, increases screen-to-body ratio, and improves customer satisfaction. Simultaneously, it makes the developed display module more versatile, significantly reducing costs and enhancing overall competitiveness. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a first axonometric view of an embodiment of the vehicle display module of this utility model;

[0030] Figure 2 This is a second axonometric view of an in-vehicle display module according to one embodiment of the present invention;

[0031] Figure 3 This is a cross-sectional view of an in-vehicle display module according to one embodiment of the present invention;

[0032] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0033] Figure 5 yes Figure 3 Enlarged view of point B in the middle.

[0034] The components include: 1. Sheet metal frame; 101. Main board; 102. Support wall; 2. Light source assembly; 21. LED light strip; 22. Light path control layer; 221. Reflector; 222. Light guide plate; 223. Diffuser; 23. Connector; 24. Brightness enhancement layer; 25. Function enhancement layer; 3. Snap-fit ​​groove; 4. Snap-fit ​​protrusion; 5. Sealing component; 6. Cover glass; 7. FOG module; 8. First adhesive layer; 9. Second adhesive layer; 10. Buffer pressure component; 11. First FPC; 12. Second FPC; 13. Backlight marking; 14. Positioning post; 15. Connecting post. Detailed Implementation

[0035] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0036] In the description of this application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] This utility model embodiment provides a backlight structure, see reference Figures 1-5 The system includes a sheet metal frame 1 and a light source assembly 2. The sheet metal frame 1 includes a main board 101 and a support wall 102 extending from the periphery of the main board 101 along a first direction. The main board 101 and the support wall 102 cooperate to form an accommodating space. The light source assembly 2 is placed in the accommodating space and is detachably connected to the support wall 102.

[0039] The first direction is the light emission direction of the backlight structure.

[0040] As an example, this backlight structure can be applied, but is not limited to, in automotive display modules, and mainly includes a sheet metal frame 1 and a light source assembly 2. The sheet metal frame 1 includes a main board 101 and a support wall 102. The support wall 102 is a component extending from the periphery of the main board 101 along a first direction, used to connect with the cover glass 6 of the automotive display module. The main board 101 and the support wall 102 cooperate to form an accommodating space. During installation, the light source assembly 2 is placed in the accommodating space and detachably connected to the support wall 102, so that the light source assembly 2 is assembled with the sheet metal frame 1, providing convenience for the installation and removal of the light source assembly 2. In this example, the overall architecture of the backlight structure is assembled from a single sheet metal part. Compared with the "bottom sheet metal + middle rubber frame" architecture in the prior art, the middle rubber frame component is removed. By using a sheet metal component, the thickness limitation of the component can be eliminated, and the bezel thickness of the overall architecture can be reduced according to requirements, thereby designing a backlight structure with a narrower bezel, and thus making the bezel of the automotive display module assembly narrower. The narrow bezel backlight structure can enhance the user's aesthetics, increase the screen-to-body ratio, and improve customer satisfaction. At the same time, it can make the developed display modules more versatile, achieve significant cost reduction, and thus enhance overall competitiveness.

[0041] The thickness of the sheet metal frame 1 can be adjusted according to actual strength requirements and strength margins. Taking a 10.2-inch display module as an example, a 1.5mm thick sheet metal frame 1 can be used. With the same internal structural gaps, compared to the "bottom sheet metal + middle rubber frame" architecture, the bezel thickness is reduced by more than 0.4mm. Significantly reducing the bezel thickness of the backlight structure makes the bezel of the automotive display module assembly narrower. This improves user aesthetics and customer satisfaction, while also making the developed display module more versatile, achieving a significant cost reduction and thus enhancing overall competitiveness.

[0042] In one embodiment, reference is made to Figure 1 , Figure 3 and Figure 5 The light source assembly 2 and the support wall 102 are provided with a snap-fit ​​groove 3 and the other is provided with a snap-fit ​​protrusion 4. The snap-fit ​​protrusion 4 snaps into the snap-fit ​​groove 3 so that the light source assembly 2 can be detachably installed in the accommodating space.

[0043] As an example, a snap-fit ​​groove 3 is provided on either the light source assembly 2 or the support wall 102, and a snap-fit ​​protrusion 4 is provided on the other. During installation, the snap-fit ​​protrusion 4 is snapped into the snap-fit ​​groove 3, which can enable the light source assembly 2 to be installed in the accommodating space and assembled with the sheet metal frame 1, providing convenience for the assembly and disassembly of the light source assembly 2.

[0044] In one embodiment, the sheet metal frame 1 further includes a sheet metal flange extending outward from one end of the support wall 102 away from the main board 101, and the sheet metal flange is in contact with the cover glass 6; the sheet metal flange is used to connect with the cover glass 6.

[0045] As an example, the sheet metal frame 1 also includes a sheet metal flange, which is a component that extends outward from the end of the support wall 102 away from the main board 101. The sheet metal flange is connected to the cover glass 6. This arrangement can increase the connection area between the sheet metal frame 1 and the cover glass 6, and enhance the connection between the two. Moreover, the sheet metal flange and the cover glass 6 can be connected by applying adhesive, and it is also compatible with the use of double-sided tape for fixing, which enhances the overall process compatibility.

[0046] In one embodiment, reference is made to Figure 1 and Figure 5 The backlight structure also includes a seal 5, which is wrapped around the support wall 102 and the main board 101 to cover the card slot 3.

[0047] As an example, the backlight structure also includes a seal 5. During installation, the seal 5 is wrapped around the support wall 102 and the main board 101. Specifically, the seal 5 is an edge-sealing tape (thickness ≤ 0.06 mm). The edge-sealing tape includes a first part and a second part extending from one side edge of the first part in a direction perpendicular to the first part. The first part is wrapped around the main board 101, and the second part is wrapped around the support wall 102, or the second part is wrapped around the main board 101, and the first part is wrapped around the support wall 102. It can cover the snap-fit ​​groove 3, which can prevent water vapor from entering and improve the sealing effect. At the same time, it can also be used to stick and fix the snap-fit ​​protrusion 4.

[0048] In one embodiment, reference is made to Figure 1 and Figure 2 The support wall 102 includes at least three connecting sidewalls; the at least three connecting sidewalls are arranged in a ring; one of the connecting sidewalls is provided with a snap-fit ​​groove 3 or a snap-fit ​​protrusion 4; the number of snap-fit ​​grooves 3 and the number of snap-fit ​​protrusions 4 are both at least two, and the at least two snap-fit ​​grooves 3 and the at least two snap-fit ​​protrusions 4 are all spaced apart along the second direction, and one snap-fit ​​groove 3 and one snap-fit ​​protrusion 4 are correspondingly provided.

[0049] The second direction and the first direction are two mutually perpendicular directions. The first direction is the light emission direction of the backlight structure, and the second direction is the direction perpendicular to the light emission direction of the backlight structure.

[0050] As an example, the support wall 102 includes at least three connecting sidewalls; the number of connecting sidewalls can be selected according to actual needs, for example, four. The four connecting sidewalls are arranged in a ring, cooperating with the main board 101 to form an accommodating space, providing installation space for the light source assembly 2. A snap-fit ​​groove 3 or a snap-fit ​​protrusion 4 is provided on one of the connecting sidewalls, and the light source assembly 2 is provided with a snap-fit ​​protrusion 4 or a snap-fit ​​groove 3. During installation, the snap-fit ​​protrusion 4 is snapped into the snap-fit ​​groove 3, allowing the light source assembly 2 to be installed in the accommodating space, assembling the light source assembly 2 with the sheet metal frame 1, facilitating the assembly and disassembly of the light source assembly 2. The number of snap-fit ​​grooves 3 and snap-fit ​​protrusions 4 is at least two, with at least two snap-fit ​​grooves 3 and at least two snap-fit ​​protrusions 4 spaced apart along the second direction, with one snap-fit ​​groove 3 corresponding to one snap-fit ​​protrusion 4; this arrangement ensures a more reliable and stable connection between the light source assembly 2 and the sheet metal frame 1, preventing connection failure.

[0051] In one embodiment, reference is made to Figure 3 and Figure 4 The light source assembly 2 includes an LED light strip 21 and a light path control layer 22. The LED light strip 21 is fixed to one side wall of the support wall 102 by a connector 23. The light path control layer 22 is mounted on the main board 101, detachably connected to the support wall 102, and is correspondingly set with the LED light strip 21.

[0052] As an example, the light source assembly 2 includes an LED strip 21 and a light path control layer 22. During installation, the LED strip 21 is fixed to one side wall of the support wall 102 using a connector 23 (e.g., LED strip fixing tape). Then, the light path control layer 22 is mounted on the main board 101 and detachably connected to the support wall 102. Specifically, the light path control layer 22 has a protrusion 4, and the support wall 102 has a slot 3. By engaging the protrusion 4 with the slot 3, the light source assembly 2 can be installed within the accommodating space, enabling light path control. Layer 22 is assembled with sheet metal frame 1 to facilitate the disassembly and assembly of light path control layer 22; light source component 2 is correspondingly set with LED light strip 21. In this arrangement, the light emitted by LED light strip 21 illuminates light path control layer 22. Light path control layer 22 includes reflective sheet 221, light guide plate 222 and diffuser 223 stacked in sequence. The light illuminating light to light path control layer 22 can be output through the cooperation of reflective sheet 221, light guide plate 222 and diffuser 223. The output light finally illuminates the cover glass 6 of vehicle display module.

[0053] In one embodiment, reference is made to Figure 3 and Figure 4 The light source assembly 2 also includes at least one of a brightness enhancement layer 24 and a function enhancement layer 25; the brightness enhancement layer 24 is stacked on the optical path control layer 22; and the function enhancement layer 25 is stacked on the optical path control layer 22 or the brightness enhancement layer 24.

[0054] As an example, the light source assembly 2 also includes at least one of a brightness enhancement layer 24 (e.g., a brightness enhancement film, of which two are stacked) and a functional enhancement layer 25 (e.g., a privacy screen protector). During installation, stacking the brightness enhancement layer 24 on the light path control layer 22 can improve light utilization and increase display brightness by selectively reflecting light from the backlight system. Stacking the functional enhancement layer 25 on the light path control layer 22 or the brightness enhancement layer 24 can prevent light loss. The brightness enhancement layer 24 and / or the functional enhancement layer 25 are provided with protrusions 4, and the support wall 102 is provided with slots 3. Engaging the protrusions 4 with the slots 3 allows the light source assembly 2 to be installed within the accommodating space, assembling the brightness enhancement layer 24 and / or the functional enhancement layer 25 together with the sheet metal frame 1, and facilitating the assembly and disassembly of the brightness enhancement layer 24 and / or the functional enhancement layer 25.

[0055] This utility model embodiment provides a vehicle-mounted display module, see reference. Figures 1-5 It includes a cover glass 6, an FOG module 7, and a backlight structure; the cover glass 6 and the sheet metal frame 1 of the backlight structure are connected by a first adhesive layer 8; the FOG module 7 is installed on the cover glass 6 by a second adhesive layer 9 and is correspondingly set with the light source assembly 2 of the backlight structure.

[0056] Among them, FOG module 7 is a flexible circuit board connector used to connect the flexible circuit board to the cover glass 6; FOG (Film On Glass) means the process of pressing a flexible circuit board (FPC) onto the liquid crystal glass, which can realize the electrical conduction between the driver IC and the cover glass 6.

[0057] As an example, the vehicle display module includes a cover glass 6, a FOG module 7, and a backlight structure. The backlight structure includes a sheet metal frame 1 and a light source assembly 2. The sheet metal frame 1 includes a main board 101 and a support wall 102. The support wall 102 is a component extending from the periphery of the main board 101 along a first direction, used to connect with the cover glass 6 of the vehicle display module. The main board 101 and the support wall 102 cooperate to form an accommodating space. During installation, the light source assembly 2 is placed within the accommodating space and detachably connected to the support wall 102, allowing the light source assembly 2 to be assembled with the sheet metal frame 1, facilitating the installation and removal of the light source assembly 2. In this example, the overall architecture of the backlight structure is assembled from a single sheet metal component. Compared to the existing "bottom sheet metal + middle frame" architecture, the middle frame component is eliminated. Using a sheet metal component eliminates the thickness limitation of components, allowing the overall frame thickness to be reduced as needed, thus designing a narrower bezel backlight structure, and consequently, a narrower bezel for the entire vehicle display module assembly. The narrow bezel backlight structure can enhance the user's aesthetics, increase the screen-to-body ratio, and improve customer satisfaction. At the same time, it can make the developed display modules more versatile, achieve significant cost reduction, and thus enhance overall competitiveness.

[0058] During installation, the FOG module 7 is mounted on the cover glass 6 via the second adhesive layer 9, and is positioned correspondingly to the light source assembly 2 of the backlight structure. Specifically, the FOG module 7 is bonded to the cover glass 6 using optically transparent adhesive, which features high light transmittance, low haze, and good weather resistance, ensuring the optical performance between the cover glass 6 and the FOG module 7. Both the first and second surfaces of the FOG module 7 are equipped with polarizers to prevent light from being polarized after passing through the FOG module 7. Then, the cover glass 6 and the sheet metal frame 1 of the backlight structure are connected via the first adhesive layer 8. Specifically, the cover glass 6 and the support wall 102 of the sheet metal frame 1 are bonded and secured using adhesive through a dispensing process. Simultaneously, the FOG module 7 is also bonded and secured to the support wall 102 using adhesive through a dispensing process to achieve the required bonding strength. The first adhesive layer 8 and the second adhesive layer 9 can also be double-sided adhesive; and the support wall 102 and the cover glass 6 can be connected by dispensing adhesive (glue), while also being compatible with the use of double-sided adhesive for fixation, thus enhancing the overall process compatibility.

[0059] In one embodiment, reference is made to Figure 4 The vehicle display module also includes a buffer pressure member 10; the buffer pressure member 10 is disposed within the accommodating space and is located between the FOG module 7 and the light source assembly 2.

[0060] As an example, the vehicle display module also includes a buffer 10 (e.g., foam); during installation, the buffer 10 is placed within the accommodating space and is located between the FOG module 7 and the light source assembly 2; specifically, the buffer 10 is located in the front area of ​​the vehicle display module, and the light source assembly 2 can be compressed by the buffer 10 to fix the light source assembly 2; at the same time, it can also provide buffer protection for the FOG module 7 to prevent damage to the FOG module 7.

[0061] In one embodiment, reference is made to Figure 1 and Figure 2 The vehicle display module also includes a first FPC11 and a second FPC12; the first end of the first FPC11 extends into the accommodating space of the backlight structure and is connected to the light source component 2 of the backlight structure, and the second end of the first FPC11 is attached to the backlight structure; the second FPC12 wraps around the backlight structure, the first end of the second FPC12 is connected to the FOG module 7, and there is a gap between the second end of the second FPC12 and the backlight structure.

[0062] As an example, the vehicle display module also includes a first FPC11 and a second FPC12; the first FPC11 and the second FPC12 are Lightbar FPCs, which are flexible printed circuit boards (FPCs) used to connect LED light strips 21 in the backlight module; they play a key role in circuit connection, spatial adaptation, and optical performance optimization. During installation, the first end of the first FPC11 is inserted into the receiving space of the backlight structure and connected to the light source component 2 of the backlight structure, and the second end of the first FPC11 is attached to the backlight structure; this connection between the first FPC11 and the light source component 2 provides convenience for the user to control the light source component 2; the second FPC12 wraps around the backlight structure, the first end of the second FPC12 is connected to the FOG module 7, and there is a gap between the second end of the second FPC12 and the backlight structure, allowing the second FPC12 to connect to the FOG module 7, providing convenience for the user to control the FOG module 7. The vehicle display module also includes at least one of a backlight indicator 13, a positioning post 14, and a connecting post 15. During installation, the backlight indicator 13 is placed on the backlight structure, specifically on the main board 101 of the sheet metal frame 1, which can improve the visibility of the vehicle display module, enhance the interactive experience, and ensure functional reliability. The positioning post 14 is placed on the backlight structure, specifically multiple positioning posts 14 are placed on the main board 101 of the sheet metal frame 1 to provide positioning for the backlight structure. The connecting post 15 is placed on the backlight structure, specifically the connecting posts 15 are arranged in a ring at intervals on the main board 101 of the sheet metal frame 1 to facilitate fixing the backlight structure.

[0063] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A backlight structure, characterized by, Including sheet metal frames and light source assemblies; The sheet metal frame includes a main board and a support wall extending from the periphery of the main board along a first direction, wherein the main board and the support wall cooperate to form an accommodating space; The light source assembly is placed within the accommodating space and is detachably connected to the supporting wall.

2. The backlight structure of claim 1, wherein, One of the light source assembly and the support wall is provided with a snap-fit ​​groove, and the other is provided with a snap-fit ​​protrusion. The snap-fit ​​protrusion engages with the snap-fit ​​groove so that the light source assembly can be detachably installed in the accommodating space.

3. The backlight structure of claim 1, wherein, The sheet metal frame also includes a sheet metal flange extending outward from the end of the support wall away from the motherboard; The sheet metal flange is used to connect with the cover glass.

4. The backlight structure of claim 2, wherein, The backlight structure also includes a sealing element, which wraps around the support wall and the motherboard to cover the snap-fit ​​groove.

5. The backlight structure of claim 2, wherein, The supporting wall includes at least three connecting sidewalls; the at least three connecting sidewalls are arranged in a ring. One of the connecting sidewalls is provided with a snap-fit ​​groove or snap-fit ​​protrusion; The number of the snap-fit ​​slots and the number of the snap-fit ​​protrusions are both at least two. At least two snap-fit ​​slots and at least two snap-fit ​​protrusions are spaced apart along the second direction, and one snap-fit ​​slot is corresponding to one snap-fit ​​protrusion.

6. The backlight structure of claim 1, wherein, The light source assembly includes LED light strips and a light path control layer; The LED light strip is fixed to one side wall of the support wall by a connector; The optical path control layer is mounted on the motherboard, detachably connected to the support wall, and is correspondingly arranged with the LED light strip.

7. The backlight structure of claim 6, wherein, The light source assembly further includes at least one of a brightness enhancement layer and a function enhancement layer; The brightness enhancement layer is stacked on the optical path control layer; The functional enhancement layer is stacked on the optical path control layer or the brightness enhancement layer.

8. A vehicle-mounted display module, characterized in that, Includes cover glass, FOG module and the backlight structure according to any one of claims 1-7; The cover glass and the sheet metal frame of the backlight structure are connected by a first adhesive layer. The FOG module is mounted on the cover glass via a second adhesive layer and is positioned correspondingly to the light source assembly of the backlight structure.

9. The vehicle display module of claim 8, wherein, The vehicle display module also includes a buffer; the buffer is disposed within the accommodating space and is located between the FOG module and the light source assembly.

10. The vehicle display module of claim 8, wherein, The vehicle-mounted display module also includes a first FPC and a second FPC; The first end of the first FPC extends into the accommodating space of the backlight structure and is connected to the light source component of the backlight structure; the second end of the first FPC is attached to the backlight structure. The second FPC wraps around the backlight structure, and the first end of the second FPC is connected to the FOG module. There is a gap between the second end of the second FPC and the backlight structure.

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