Ultrathin vehicle-mounted backlight module structure

Abstract

The invention relates to the technical field of vehicle-mounted backlight module structures, and discloses an ultrathin vehicle-mounted backlight module structure which comprises a die-casting shell and a display module, a groove body is formed in one side of the die-casting shell, and a step surface is arranged on the inner side of a port of the groove body; the display module comprises a reflecting film, a light guide plate, a diffusion film, a lower intensifying light, an upper intensifying light and a liquid crystal glass cover plate which are sequentially distributed from bottom to top, a middle rubber frame is bonded to the step face and wraps the outer side of the cover plate, and meanwhile the cover plate and the middle rubber frame are fixed through foam rubber. A traditional plastic rear shell is replaced by the die-casting shell, the die-casting shell is made of hard metal materials, the module die-casting piece and the plastic rear shell are combined into a whole, the die-casting piece is integrated, the front face bears the diaphragm, the back face structure is provided with a connecting structure to be connected with a vehicle body, and the die-casting shell guarantees the product strength and improves the overall heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted backlight module structures, in particular to an ultra-thin vehicle-mounted backlight module structure. Background Art

[0002] Traditional car computers include a display module, a die-casting and a plastic back cover. The back of the display module is protected by installing a die-casting on the back of the display module. Installing the installed display module and die-casting in the plastic back cover requires increasing the number of parts and increasing manufacturing costs.

[0003] Traditional plastic shells are weaker than die-cast parts and require thicker walls to ensure product strength, which affects the frame and thickness of the assembly. In addition, plastic has poor thermal conductivity, which affects the heat dissipation effect of the assembly. Summary of the Invention

[0004] The object of the present invention is to provide an ultra-thin vehicle-mounted backlight module structure to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is an ultra-thin vehicle-mounted backlight module structure, comprising a die-cast housing and a display module. A groove is formed on one side of the die-cast housing, and a step surface is provided on the inner side of the port of the groove.

[0007] The display module includes a reflective film, a light guide plate, a diffusion film, a lower light enhancement plate, an upper light enhancement plate, and a liquid crystal glass cover plate, which are arranged in sequence from bottom to top;

[0008] A middle rubber frame is bonded to the step surface, and the middle rubber frame wraps the outer side of the cover plate. The cover plate and the middle rubber frame are fixed by foam glue.

[0009] In this application, a die-cast shell replaces the traditional plastic rear shell. The die-cast shell is made of hard metal material. The module die-cast part and the plastic rear shell are combined into one. The die-cast part is integrated. The front side carries the diaphragm, and the back side structure is provided with a connecting structure to connect with the vehicle body.

[0010] Traditional car computers consist of a display module, a die-casting, and a plastic back cover. The die-casting is installed on the back of the display module to protect the back of the display module. Installing the installed display module and die-casting inside the plastic back cover increases the number of parts and manufacturing costs.

[0011] The present application uses a die-cast housing installed on the outside of the display module to protect the display module and form a housing structure;

[0012] Compared with die-cast shells, traditional plastic shells are weaker in strength than die-cast parts and require thicker walls to ensure product strength, which affects the frame and thickness of the assembly. In addition, plastic has poor thermal conductivity, which affects the heat dissipation effect of the assembly.

[0013] A protruding structure is formed on the back of the die-cast housing;

[0014] The end of the protruding structure is provided with a groove, and a connecting seat is fitted in the groove;

[0015] Different types of connecting seats can be installed in the groove, so that the die-cast housing can be unchanged. By changing the connecting seat, the installation requirements of different models can be met. The structure and size of the die-cast housing remain unchanged, thereby improving the adaptability of the die-cast housing.

[0016] The problem of changing the mold when the size or structure of the die-cast shell changes is solved, thereby reducing mold development and production costs.

[0017] Furthermore, the connecting seat includes a connecting seat and a cover plate, the connecting seat is installed in the groove, and the cover plate is installed in the opening of the connecting seat;

[0018] The groove is provided with a card slot on both sides of the opposite sides;

[0019] The connecting seat is provided with mounting grooves on both sides of the opposite sides, and buckles are installed in the mounting grooves;

[0020] The connecting seat is located in the groove, and the protrusion of the buckle body is fitted in the slot;

[0021] A screw hole is provided on the bottom surface of the groove, the cover plate is located inside the connecting seat, and a cover body that matches the screw hole is installed on the cover plate;

[0022] At the same time, the cover pushes the installed buckle body to rotate outward;

[0023] The connecting seat is installed inside the groove, and is installed in the card slot by cooperating with the protrusion of the buckle body connected to the connecting seat, thereby completing the limiting fixation of the connecting seat;

[0024] Since the other end of the buckle body is installed in the installation groove through the pin shaft, the buckle body rotates around the pin shaft inside the connecting seat, so that the protrusion of the buckle body is disengaged from the slot, making it easy for the installed connecting seat to be pulled out of the groove;

[0025] By installing a cover plate in the connecting seat and the cover plate being located between the two buckle bodies, the buckle bodies are prevented from rotating toward the inside of the connecting seat after being engaged, thereby preventing the connecting seat from falling out of the groove after being installed;

[0026] During disassembly, the limit on the buckle body is released by removing the cover plate, thereby facilitating the removal of the connecting seat;

[0027] Since the connecting seat is a rectangular frame structure, the screw holes provided on the bottom surface of the groove correspond to the screws connected to the cover plate, and the buckle body is limited by tightening the screws until the side surface of the cover plate contacts the end surface of the screw hole;

[0028] At the same time, the cover plate is connected to the groove, and the cover plate supports the connecting seat through the peripheral side surface of the cover plate contacting the inner wall of the connecting seat.

[0029] Furthermore, through grooves are formed on two opposite sides of the sidewall of the groove;

[0030] A deep groove is formed on the outer bottom surface of the groove, and a circular hole is formed on the bottom surface of the deep groove;

[0031] A cover body is fitted in the through slot, a rod body is fitted on the cover body, and an end of the rod body passes through the circular hole and is connected to a limit ring and a spring;

[0032] The installed cover plate pushes the limiting ring to compress the spring, and the moving limiting ring drives the rod body and one end of the cover body connected to the end of the rod body, thereby realizing that the cover body is separated from the through groove, and the interior of the die-cast shell and the interior of the groove are connected to each other;

[0033] The circuit board in the display module is located inside the protruding structure. Due to the large number of resistor structures on the circuit board, a large amount of heat is generated during operation.

[0034] At the same time, two card interfaces are provided on the cover plate, which are divided into air inlet and air outlet. The fan assemblies installed in the two card interfaces are divided into air inlet fan and air outlet fan, which realize the air flow inside the die-cast shell in the car and complete the heat dissipation of the inner side of the protruding structure.

[0035] Furthermore, the groove, the connecting seat and the cover plate form a closed cavity;

[0036] A card interface is provided on the cover plate, and a fan assembly is installed in the card interface;

[0037] The fan assembly includes a cylinder structure, mesh sheets are installed at both ends of the cylinder, and a fan is installed inside the cylinder;

[0038] A bracket is provided in the connecting seat, and two sleeves are provided on the bracket. The sleeve is sleeved on the end of the fan assembly to limit the end of the fan assembly. A long groove is opened at the bottom end of the sleeve, and air flows out of or into the sleeve through the long groove.

[0039] Furthermore, connecting ears extend from opposite sides of the connecting seat, and the connecting ears extend out of the groove;

[0040] It is connected to the connecting buckle on the vehicle body through the connecting ear. A bracket is provided in the connecting seat. Two sleeves are provided on the bracket. The sleeve is sleeved on the end of the fan assembly to limit the end of the fan assembly. A long slot is provided at the bottom end of the sleeve, and air flows out or flows into the sleeve through the long slot.

[0041] Furthermore, a grid-shaped protrusion is provided on the inner side surface of the die-cast shell, and the hardness of the die-cast shell is improved by the provided grid-shaped protrusion.

[0042] Furthermore, the notch of the die-cast shell is provided with a protrusion for limiting the centering rubber frame, thereby completing the limiting of the centering rubber frame.

[0043] The present invention has the following beneficial effects:

[0044] (1) The present invention replaces the traditional plastic rear shell with a die-cast shell. The die-cast shell is made of hard metal material. The module die-cast part and the plastic rear shell are combined into one. The die-cast part is integrated. The front side carries the diaphragm, and the back side structure is provided with a connecting structure connected to the vehicle body. The die-cast shell ensures the strength of the product and improves the overall heat dissipation effect.

[0045] (2) Different types of connecting seats can be installed in the groove of the present invention, so that the installation requirements of different models can be met by changing the connecting seats without changing the die-cast shell. The structure and size of the die-cast shell do not change, thereby improving the adaptability of the die-cast shell and solving the problem of needing to change the mold after the size or structure of the die-cast shell changes, thereby reducing mold development and reducing production costs.

[0046] (3) The circuit board in the display module of the present invention is located on the inner side of the protruding structure. Since a large number of resistance structures are provided on the circuit board, a large amount of heat will be generated during operation. At the same time, two card interfaces are provided on the cover plate. The two card interfaces are divided into an air inlet and an air outlet. The fan assemblies installed in the two card interfaces are divided into an air inlet fan and an air outlet fan, which realizes the air flow inside the die-cast shell in the car and completes the heat dissipation of the inner side of the protruding structure.

[0047] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0049] Figure 1 It is a schematic diagram of the back side of the present invention;

[0050] Figure 2 This is a schematic diagram of the connection between the die-cast housing and the display module of the present invention;

[0051] Figure 3 This is a schematic diagram of the die-cast housing structure of the present invention;

[0052] Figure 4 Schematic diagram of the connecting seat of the present invention Figure 1 ;

[0053] Figure 5 Schematic diagram of the connecting seat of the present invention Figure 2 ;

[0054] Figure 6 For the present invention Figure 5 Schematic cross-section diagram of

[0055] Figure 7 This is a schematic diagram of the die-cast housing of the present invention;

[0056] Figure 8 This is a schematic diagram of the back structure of the die-cast housing of the present invention;

[0057] Figure 9 This is a schematic diagram of the connecting seat of the present invention;

[0058] Figure 10 This is a schematic diagram of the cover plate of the present invention;

[0059] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0060] In the figure: 1. Die-cast shell; 101. Step surface; 102. Protruding structure; 103. Groove; 104. Through groove; 105. Deep groove; 106. Round hole; 107. Screw hole; 108. Card slot; 2. Light guide plate; 3. Diffusion film; 4. Lower light enhancement; 5. Upper light enhancement; 6. Liquid crystal glass; 7. Cover plate; 8. Foam glue; 9. Middle glue frame; 10. Light source; 11. Reflective film; 12. Connecting seat; 1201. Connecting ear; 1202. Mounting slot; 1203. Opening slot; 13. Cover plate; 1301. Card interface; 14. Screw; 15. Fan assembly; 16. Bracket; 17. Cover body; 18. Rod body; 19. Limiting ring; 20. Spring; 21. Buckle body. DETAILED DESCRIPTION

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0062] See also Figures 1-10 As shown, the present invention is an ultra-thin vehicle-mounted backlight module structure, comprising a die-cast housing 1 and a display module. A groove is formed on one side of the die-cast housing 1, and a step surface 101 is provided on the inner side of the port of the groove.

[0063] The display module includes a reflective film 11, a light guide plate 2, a diffusion film 3, a lower light-enhancing film 4, an upper light-enhancing film 5, a liquid crystal glass 6 and a cover plate 13, which are arranged in sequence from bottom to top;

[0064] A light source 10 is installed inside the die-cast housing 1, and the light source 10 is an LED lamp body;

[0065] The middle rubber frame 9 is bonded to the step surface 101 , and the middle rubber frame 9 covers the outer side of the cover plate 13 . Meanwhile, the cover plate 13 and the middle rubber frame 9 are fixed by means of foam glue 8 .

[0066] In this application, the traditional plastic rear shell is replaced by a die-cast shell 1. The die-cast shell 1 is made of hard metal material. The module die-cast part and the plastic rear shell are combined into one. The die-cast part is integrated. The front side carries the diaphragm, and the back side structure is provided with a connecting structure connected to the vehicle body.

[0067] Traditional car computers consist of a display module, a die-casting, and a plastic back cover. The die-casting is installed on the back of the display module to protect the back of the display module. Installing the installed display module and die-casting inside the plastic back cover increases the number of parts and manufacturing costs.

[0068] The present application uses a die-cast housing 1 installed on the outside of the display module to protect the display module and form a housing structure;

[0069] Compared with the die-cast housing 1, the traditional plastic housing is weaker in strength than the die-casting part and requires a thicker wall thickness to ensure product strength, which affects the frame and thickness of the assembly. In addition, the thermal conductivity of plastic is poor, which affects the heat dissipation effect of the assembly.

[0070] A protruding structure 102 is formed on the back of the die-cast housing 1;

[0071] A groove 103 is formed at the end of the protruding structure 102, and a connecting seat is mounted in the groove 103;

[0072] Different types of connecting seats can be installed in the groove 103, so that the die-cast housing 1 does not need to be changed. By changing the connecting seat, the installation requirements of different models can be met. The structure and size of the die-cast housing 1 do not change, thereby improving the adaptability of the die-cast housing 1.

[0073] The problem of changing the mold when the size or structure of the die-cast housing 1 is changed is solved, thereby reducing the development of the mold and reducing the production cost.

[0074] The connecting base includes a connecting base 12 and a cover plate 13. The connecting base 12 is installed in the groove 103. The cover plate 13 is installed in the opening of the connecting base 12.

[0075] A latching slot 108 is formed on both opposite sides of the groove 103;

[0076] Mounting grooves 1202 are provided on both opposite sides of the connecting base 12, and buckle bodies 21 are installed in the mounting grooves 1202;

[0077] The connecting seat 12 is located in the groove 103, and the protrusion of the buckle body 21 is fitted in the card slot 108;

[0078] A screw hole 107 is provided on the bottom surface of the groove 103 , and the cover plate 13 is located inside the connecting seat 12 , and a cover body 17 is mounted on the cover plate 13 to match the screw hole 107 ;

[0079] At the same time, the cover plate 13 pushes the installed buckle body 21 to rotate outward;

[0080] The connecting seat 12 is installed inside the groove 103, and the protrusion of the buckle body 21 connected to the connecting seat 12 is installed in the card slot 108 to complete the limiting and fixing of the connecting seat 12;

[0081] Since the other end of the buckle body 21 is installed in the installation groove 1202 through the pin shaft, the buckle body 21 rotates around the pin shaft toward the inside of the connecting seat 12, so that the protrusion of the buckle body 21 is disengaged from the card slot 108, making it easier for the installed connecting seat 12 to be pulled out of the groove 103;

[0082] By installing the cover plate 13 in the connecting seat 12 and the cover plate 13 being located between the two buckle bodies 21, the buckle bodies 21 are prevented from rotating toward the inside of the connecting seat 12 after being engaged, thereby preventing the connecting seat 12 from being separated from the groove 103 after being installed.

[0083] During disassembly, by removing the cover plate 13, the limit on the buckle body 21 is released, thereby facilitating the removal of the connecting seat 12;

[0084] Since the connecting base 12 is a rectangular frame structure, the screw hole 107 provided on the bottom surface of the groove 103 corresponds to the screw 14 connected to the cover plate 13. By tightening the screw 14 until the side surface of the cover plate 13 contacts the end surface of the screw hole 107, the buckle body 21 is limited.

[0085] At the same time, the cover plate 13 is connected to the groove 103 , and the cover plate 13 supports the connecting seat 12 by contacting the peripheral side surface of the cover plate 13 with the inner wall of the connecting seat 12 .

[0086] Through slots 104 are formed on opposite sides of the sidewalls of the groove 103;

[0087] A deep groove 105 is formed on the outer bottom surface of the groove 103, and a circular hole 106 is formed on the bottom surface of the deep groove 105;

[0088] A cover 17 is fitted into the through slot 104 , a rod 18 is fitted onto the cover 17 , and the end of the rod 18 passes through the circular hole 106 and is connected to a limit ring 19 and a spring 20 ;

[0089] After the cover plate 13 is installed, it pushes the limiting ring 19 to compress the spring 20. At the same time, the moving limiting ring 19 drives the rod 18 and the end of the cover 17 connected to the end of the rod 18, thereby enabling the cover 17 to be separated from the through groove 104, and realizing the mutual communication between the interior of the die-cast housing 1 and the interior of the groove 103.

[0090] The circuit board in the display module is located inside the protruding structure 102. Since a large number of resistor structures are provided on the circuit board, a large amount of heat is generated during operation.

[0091] At the same time, two card interfaces 1301 are provided on the cover plate 13. The two card interfaces 1301 are divided into an air inlet and an air outlet. The fan assemblies 15 installed in the two card interfaces 1301 are divided into an air inlet fan and an air outlet fan, thereby realizing the air flow inside the die-cast shell 1 in the vehicle and completing the heat dissipation of the inner side of the protruding structure 102.

[0092] The groove 103, the connecting seat 12 and the cover plate 13 form a closed cavity;

[0093] The cover plate 13 is provided with a card interface 1301 , in which the fan assembly 15 is installed;

[0094] The fan assembly 15 comprises a cylindrical structure, with mesh sheets installed at both ends of the cylindrical structure and a fan installed inside the cylindrical structure;

[0095] A bracket 16 is provided in the connecting seat 12, and two sleeves are provided on the bracket 16. The sleeves are sleeved on the ends of the fan assembly 15 to limit the ends of the fan assembly 15. A long groove is opened at the bottom end of the sleeve, and air flows out of or into the sleeve through the long groove.

[0096] Connecting ears 1201 extend from opposite sides of the connecting base 12, and the connecting ears 1201 extend out of the groove 103;

[0097] It is connected to the connecting buckle on the vehicle body through the connecting ear 1201, and a bracket 16 is provided in the connecting seat 12. Two sleeves are provided on the bracket 16. The sleeves are sleeved on the ends of the fan assembly 15 to limit the ends of the fan assembly 15. A long groove is provided at the bottom end of the sleeve, and air flows out of or into the sleeve through the long groove.

[0098] The inner side surface of the die-cast housing 1 is provided with grid-shaped protrusions, and the hardness of the die-cast housing 1 is improved by the provided grid-shaped protrusions.

[0099] The notch of the die-cast housing 1 is provided with a protrusion for limiting the centering rubber frame 9, thereby completing the limiting of the centering rubber frame 9.

[0100] The assembly process is as follows:

[0101] CG+OCA lamination is as follows:

[0102] The bonding process of CG (Cover Glass) and OCA (Optically Clear Adhesive) is a key process in display manufacturing, mainly used in the assembly of devices such as touch screens and display modules.

[0103] (CG+OCA+Fog)+BL lamination / PUR dispensing are as follows:

[0104] CG (Cover Glass): Cover glass protects the screen and enhances the touch experience.

[0105] OCA (Optically Clear Adhesive): Optically transparent adhesive, used to bond CG to the underlying optical film or touch layer.

[0106] Fog (fog layer / anti-glare layer):

[0107] This may refer to an anti-glare coating, which scatters light through surface microstructures to reduce reflections.

[0108] Or it refers to haze film, which is used to soften backlight (such as diffusion film).

[0109] BL (Backlight): Backlight module (for LCD screen), including light guide plate, LED light source, etc.

[0110] First, the anti-glare coating (Fog) is bonded to the inner side of the CG through OCA to form a composite cover;

[0111] Vacuum lamination + degassing is required to ensure there are no bubbles and optical distortion;

[0112] Align the composite cover (CG+OCA+Fog) with the backlight module and bond them with secondary OCA or PUR adhesive;

[0113] Assemble and fix the FPC as follows:

[0114] Touch screen (TP) and main control board (transmits touch signals).

[0115] Display panel and driver IC (transmits image data).

[0116] LED driver circuit for the backlight module (BL) (only required for LCD).

[0117] Typical structural position: fixed on the CG (cover glass) or panel edge, connected to the circuit through ACF (anisotropic conductive adhesive) or welding.

[0118] Engineering inspection: conduct quality verification of the entire assembly process;

[0119] Lighting check: Power on to test the display function and confirm that the components are operating normally.

[0120] Aging test: simulates long-term operating environment to detect component stability and durability.

[0121] Appearance quality inspection: Check whether the product surface is free of scratches, stains or assembly defects.

[0122] Attachment of protective layer and fixing tape: Attach barrier-free card fixing tape and cover the connection protective layer to enhance product protection.

[0123] Shipping inspection: final performance and appearance review;

[0124] Packaging and shipment: Products are packaged according to standards and prepared for delivery.

[0125] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An ultra-thin vehicle-mounted backlight module structure, comprising a die-cast housing (1) and a display module, characterized in that: A trough body is formed on one side of the die-cast housing (1), and a step surface (101) is provided on the inner side of the port of the trough body; The display module comprises a reflective film (11), a light guide plate (2), a diffusion film (3), a lower light enhancement film (4), an upper light enhancement film (5), a liquid crystal glass (6) and a cover plate (13) which are sequentially arranged from bottom to top; A middle rubber frame (9) is bonded to the step surface (101), and the middle rubber frame (9) covers the outer side of the cover plate (13). The cover plate (13) and the middle rubber frame (9) are fixed by means of foam glue (8).

2. The ultra-thin vehicle-mounted backlight module structure according to claim 1, characterized in that: A protruding structure (102) is formed on the back side of the die-cast housing (1); A groove (103) is provided at the end of the protruding structure (102), and a connecting seat is fitted in the groove (103).

3. The ultra-thin vehicle-mounted backlight module structure according to claim 2, characterized in that: The connecting seat comprises a connecting seat (12) and a cover plate (13); The connecting seat (12) is installed in the groove (103), and a cover plate (13) is installed in the opening of the connecting seat (12).

4. The ultra-thin vehicle-mounted backlight module structure according to claim 3, characterized in that: The groove (103) is provided with a clamping groove (108) on both opposite sides thereof; The connecting seat (12) is provided with mounting grooves (1202) on both opposite sides, and a buckle body (21) is installed in the mounting groove (1202); The connecting seat (12) is located in the groove (103), and the protrusion of the buckle body (21) is fitted in the clamping groove (108); A screw hole (107) is provided on the bottom surface of the groove (103); the cover plate (13) is located inside the connecting seat (12); and a cover body (17) is mounted on the cover plate (13) and matches the screw hole (107); At the same time, the cover plate (13) pushes the installed buckle body (21) to rotate outward.

5. The ultra-thin vehicle-mounted backlight module structure according to claim 2, characterized in that: Through grooves (104) are formed on opposite sides of the sidewall of the groove (103); A deep groove (105) is provided on the outer bottom surface of the groove (103), and a circular hole (106) is provided on the bottom surface of the deep groove (105); A cover body (17) is fitted in the through groove (104), a rod body (18) is fitted on the cover body (17), and an end of the rod body (18) passes through the circular hole (106) and is connected to a limiting ring (19) and a spring (20).

6. The ultra-thin vehicle-mounted backlight module structure according to claim 5, characterized in that: The groove (103), the connecting seat (12) and the cover plate (13) form a closed cavity; A card interface (1301) is provided on the cover plate (13), and a fan assembly (15) is installed in the card interface (1301).

7. The ultra-thin vehicle-mounted backlight module structure according to claim 3, characterized in that: Connecting ears (1201) extend from opposite sides of the connecting seat (12), and the connecting ears (1201) extend out of the groove (103).

8. The ultra-thin vehicle-mounted backlight module structure according to claim 1, characterized in that: The inner side surface of the die-cast housing (1) is provided with grid-shaped protrusions.

9. The ultra-thin vehicle-mounted backlight module structure according to claim 1, characterized in that: The notch of the die-cast housing (1) is provided with a protrusion for centering the middle rubber frame (9) and limiting the position.

Images