A vehicle-mounted display screen structure

Abstract

This utility model relates to a vehicle-mounted display screen structure, belonging to the field of vehicle-mounted display screens, including a panel (1). A backlight die-casting structure (2) is provided on one side of the panel (1). The backlight die-casting structure (2) is an integral structure, reducing interface reflection loss and improving backlight efficiency. The area of ​​the groove (6) is smaller than the area of ​​the backlight plate (4). The back shell (3) covers the groove (6), reducing the cost of the back shell material. A PCBA board (8) is provided on the backlight die-casting structure (2). The backlight die-casting structure (2) and the back shell (3) are connected by bolts (33). The backlight die-casting structure (2) and the back shell (3) are connected by protrusions and limiting grooves, eliminating the need for dispensing and related equipment investment, and improving assembly efficiency. A heat dissipation tape (22) is provided on the panel (1) to solve the heat generation problem of LED light source, etc.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle display screens, specifically, it relates to a vehicle display screen structure. Background Technology

[0002] With the rapid development of intelligent vehicles and new energy vehicles, in-vehicle displays are evolving towards larger sizes, higher integration, lighter weight, and greater intelligence. Consumers' demands for in-vehicle technology, aesthetics, and functionality are constantly increasing, while automakers' need to reduce costs and increase efficiency is becoming increasingly urgent. Traditional in-vehicle displays are expensive due to their numerous components and complex assembly processes, requiring automakers to reduce costs through technological innovation. Limited in-vehicle space and large component sizes make them unsuitable for more vehicle models and new cabin layouts. Consumers have higher requirements for screen display effects, such as high brightness, uniformity, and borderless and ultra-thin designs in interior interiors. Traditional in-vehicle displays use a separate backlight module and back cover design, which has the following drawbacks: Structural redundancy: The backlight module and back cover exist independently, resulting in a large number of components, heavy weight, and low space utilization. High cost: Additional back cover materials need to be purchased, and multiple processes such as gluing and assembly are required, leading to high labor and manufacturing costs. Reliability risk: The splicing of multiple components can easily introduce tolerance accumulation problems, and long-term use may cause the adhesive layer to crack or components to loosen due to vibration and temperature differences.

[0003] A search revealed a Chinese patent published on July 9, 2024, entitled CN221293303, which discloses a display screen, a vehicle dashboard, and a vehicle. The display screen is mounted on a dashboard body and a dashboard trim. It includes a display screen body; a first snap-fit ​​component disposed on the side of the display screen body facing the dashboard trim and snapped into the dashboard trim, restricting the movement of the display screen body on the plane of the dashboard body; and a screw seat disposed on the side of the display screen body facing the dashboard body. The display screen body is detachably connected to the dashboard body via the screw seat, restricting the movement of the display screen body towards or away from the dashboard body. However, this display screen fails to solve the aforementioned problems, still exhibiting structural redundancy, numerous components, high weight, low space utilization, and poor screen display effect and backlight efficiency. Utility Model Content

[0004] The present invention aims to provide an integrated, high-efficiency vehicle display screen structure.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A vehicle-mounted display screen structure includes a panel, a backlight die-casting structure on one side of the panel, a back cover on the backlight die-casting structure, and the backlight die-casting structure is an integral structure.

[0007] The backlight die-casting structure includes a backlight panel and injection screw holes. A groove is provided on one side of the backlight panel, and the injection screw holes are located in the groove. A PCBA board is provided in the groove. An MCU software writing port is provided on the PCBA board. A first connector and a second connector are also provided on the PCBA board.

[0008] The groove is provided with a first limiting groove and a second limiting groove, and the groove is also provided with an FPC interface.

[0009] The area of ​​the groove is smaller than the area of ​​the backlight panel. The back cover covers the groove. The back cover has a first protrusion that mates with the first limiting groove and a second protrusion that mates with the second limiting groove.

[0010] The PCBA board is equipped with an LVDS connector and a power connector.

[0011] The rear housing is provided with through holes for LVDS connector and power connector respectively.

[0012] The back cover and PCBA board are connected by bolts, and the bolts are connected to injection molding screw holes. The other side of the backlight panel is provided with reinforcing ribs, and the backlight panel and the front panel are connected by snap-fit.

[0013] The panel includes a glass cover, a glass substrate, and an optical film assembly. The glass cover and the glass substrate are connected by an optical bonding adhesive layer. The optical film assembly includes a reflective film and a light guide plate. The reflective film is disposed on the glass substrate, and the light guide plate is disposed on the reflective film. A diffusion film is disposed on the light guide plate, a lower brightness enhancement film is disposed on the diffusion film, an upper brightness enhancement film is disposed on the lower brightness enhancement film, and a privacy film is disposed on the upper brightness enhancement film. A heat dissipation tape is disposed on the side of the light guide plate.

[0014] The heat dissipation tape has an FPC board attached, the FPC interface is connected to the FPC board, and the FPC board has LED lights.

[0015] The rear shell is provided with multiple sets of mounting holes that are compatible with the vehicle body.

[0016] The technical advantages of this invention are as follows: by using a one-piece backlight die-casting structure, interface reflection loss is reduced and backlight efficiency is improved; the cost of back shell materials is directly reduced, eliminating the need for dispensing processes and related equipment investment, thus improving assembly efficiency; the addition of heat dissipation tape solves the heat generation problem of LED light sources, ensuring that the overall screen temperature does not become too high; it supports ultra-thin, curved, or irregularly shaped screen designs, enhancing the technological feel of the interior; and through standardized clips, it adapts to different screen sizes and the customized needs of OEMs. Attached Figure Description

[0017] This manual includes the following figures, which illustrate the following:

[0018] Figure 1 This is an exploded view of the overall structure of a vehicle-mounted display screen.

[0019] Figure 2 for Figure 1 Schematic diagram of the backlight die-casting structure.

[0020] Figure 3 for Figure 1 Partial assembly diagram of PCBA board.

[0021] Figure 4 for Figure 1 Schematic diagram of the middle and rear shell structure.

[0022] Figure 5 for Figure 2 A bottom view.

[0023] Figure 6 for Figure 1 Schematic diagram of the heat dissipation tape section.

[0024] Figure 7 for Figure 6 A magnified view of part A in the middle.

[0025] Figure 8 for Figure 1 A schematic diagram of the structure of the optical film material component.

[0026] Figure 9 for Figure 8 A magnified view of part B in the middle section.

[0027] The diagram is labeled as follows: 1. Panel; 2. Backlight die-cast structure; 3. Back cover; 4. Backlight panel; 5. Injection molding screw hole; 6. Groove; 7. Reinforcing rib; 8. PCBA board; 9. MCU software writing port; 10. First connector; 11. Second connector; 12. Glass cover; 13. Optical bonding adhesive layer; 14. Glass substrate; 15. Optical film assembly; 16. Reflective film; 17. Light guide plate; 18. Diffuser film; 19. Lower brightness enhancement film; 20. Upper brightness enhancement film; 21. Privacy film; 22. Heat dissipation tape; 23. FPC board; 24. LED light; 25. First limiting groove; 26. Second limiting groove; 27. FPC interface; 28. First protrusion; 29. ​​Second protrusion; 30. LVDS connector; 31. Power connector; 32. Through hole; 33. Bolt; 34. Buckle; 35. T-buckle; 36. Assembly hole. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0029] like Figure 1 As shown, a vehicle-mounted display screen structure includes a panel 1, a backlight die-casting structure 2 on one side of the panel 1, and a back shell 3 on the backlight die-casting structure 2. The backlight die-casting structure 2 is an integrated structure. The integrated backlight die-casting structure 2 reduces interface reflection loss and improves backlight efficiency. Through topology optimization and simulation analysis, it is ensured that the integrated backlight die-casting structure 2 meets optical performance requirements, exhibits high brightness uniformity, meets mechanical strength requirements, and has a high vibration resistance level. The metal support frame is produced using high-pressure casting technology. The backlight die-casting structure 2 is a plate-like structure with an inclined angle. The optical components and support structure are integrated through injection molding to form a single component that combines optical function and mechanical strength.

[0030] like Figure 2 and Figure 3 As shown, the backlight die-cast structure 2 includes a backlight panel 4 and injection screw holes 5. A groove 6 is provided on one side of the backlight panel 4, and the injection screw holes 5 are located within the groove 6. A PCBA board 8 is located within the groove 6. The PCBA board 8 has an MCU software writing port 9 and a first connector 10 and a second connector 11. The groove 6 is located on the side of the backlight panel 4 away from the panel 1. In this embodiment, five injection screw holes 5 are provided, four of which are located around the perimeter of the groove 6, and one is located in the center of the groove 6, slightly to the right, solely for fixing the backlight panel 4 and the PCBA board 8. The PCBA board 8 is square, with an MCU software writing port 9 located at its upper left corner. The first connector 10 is located in the center of the PCBA board; in this embodiment, the first connector 10 is a 60-pin power strip base. The second connector 11 is located on the right side of the PCBA board 8; in this embodiment, the second connector 11 is a 10-pin power strip base.

[0031] The groove 6 is provided with a first limiting groove 25 and a second limiting groove 26, and the groove 6 is also provided with an FPC interface 27. In this embodiment, the groove 6 is provided with two first limiting grooves 25, and a second limiting groove 26 is provided on each side of the groove 6. A protrusion is provided on one side of the second limiting groove 26, which cooperates with the through hole of the PCBA board 8 to play a positioning role before the installation bolt 33.

[0032] like Figure 4As shown, the area of ​​the groove 6 is smaller than the area of ​​the backlight panel 4. The back cover 3 covers the groove 6. The back cover 3 has a first protrusion 28 that mates with the first limiting groove 25, and a second protrusion 29 that mates with the second limiting groove 26. By providing a groove 6 with an area smaller than the backlight panel 4, the back cover 3 is placed on the backlight panel 4, which reduces the cost of the back cover material. The first protrusion 28 and the first limiting groove 25 are provided on the back cover 3, and the second protrusion 29 and the second limiting groove 26 are provided on the sides of the back cover 3, which serve to fix the back cover 3, the PCBA board 8, and the backlight panel 4. The back cover 3 is directly connected to the groove 6 of the backlight panel 4, eliminating the need for dispensing and related equipment investment, and improving assembly efficiency.

[0033] The PCBA board 8 is equipped with an LVDS connector 30 and a power connector 31. The LVDS connector 30 is responsible for signal transmission, and the power connector 31 is connected to the power supply to power the display screen structure.

[0034] like Figure 5 As shown, the rear housing 3 is provided with through holes 32 for cooperating with the LVDS connector 30 and the power connector 31. The through holes 32 on the rear housing 3 are provided for the LVDS connector 30 and the power connector 31 to pass through the through holes 32.

[0035] The back cover 3 and PCBA board 5 are connected by bolts 33, which connect to injection molding screw holes 5. A reinforcing rib 7 is provided on the other side of the backlight panel 4. The backlight panel 4 and the front panel 1 are connected by clips 34. The back cover 3 and PCBA board 8 are connected by bolts 33 around the perimeter, which connect to injection molding screw holes 5, ensuring a tight fixation between the PCBA board 8, the backlight panel 4, and the back cover 3. A reinforcing rib 7 with a honeycomb structure is provided on the side of the backlight panel 4 closest to the front panel 1 to increase strength. The backlight panel 4 and the front panel 1 are connected on the left and right sides by clips 34, and on the top and bottom sides by T-shaped clips 35. The standardized clips 34 are adaptable to different screen sizes and OEM customization needs.

[0036] like Figure 8 and Figure 9As shown, panel 1 includes a glass cover plate 12, an optical bonding adhesive layer 13, a glass substrate 14, and an optical film assembly 15. The glass cover plate 12 and the glass substrate 14 are connected by the optical bonding adhesive layer 13. The optical film assembly 15 includes a reflective film 16 and a light guide plate 17. The reflective film 16 is disposed on the glass substrate 14, and the light guide plate 17 is disposed on the reflective film 16. A diffusion film 18 is disposed on the light guide plate 17, a lower brightness enhancement film 19 is disposed on the diffusion film 18, an upper brightness enhancement film 20 is disposed on the lower brightness enhancement film 19, and a privacy film 21 is disposed on the upper brightness enhancement film 20. A heat dissipation tape 22 is disposed on the side 15 of the light guide plate 17. The heat dissipation tape 22 is disposed on the side of the light guide plate 17 and is relatively wide, covering the entire side of the optical film assembly 15. The diffuser film 18, the lower brightness enhancement film 19, the upper brightness enhancement film 20 and the privacy film 21 are closely bonded together to form an integral film, which can be replaced individually. The light guide plate 17 is embedded in the integral film to convert the light source into a uniform surface light source, providing uniform and high-brightness background lighting and improving the display effect of the screen. The backlight die-casting structure 2 is set on the optical mold assembly 15 near the panel 1.

[0037] like Figure 6 and Figure 7 As shown, an FPC board 23 is mounted on the heat dissipation tape 22, and an FPC interface 27 connects to the FPC board 23. An LED light 24 is mounted on the FPC board 23. The heat dissipation tape 22 is wrapped around the side of the optical film assembly 15. The FPC board 23 and the glass substrate 14 form a FOG board. The heat dissipation tape 22 serves to dissipate heat and physically secure the LED light 24, solving the heat generation problem of the LED light source, ensuring the overall screen temperature does not become too high, and extending the lifespan of the LED light 24.

[0038] The rear cover 3 is provided with multiple sets of mounting holes 36 for mounting with the vehicle.

[0039] The working principle of this utility model is as follows: A vehicle-mounted display screen structure is constructed by installing panel 1 and connecting it to one side of backlight panel 4 via clips 34. PCBA board 8 is fixed to the other side of backlight panel 4 via second limiting grooves 26 on both sides of groove 6. The injection screw hole 5 in the middle right position of PCBA board 8 is connected to backlight panel 4 by a bolt 33. The first protrusion 28 on the rear shell 3 engages with the first limiting groove 25, and the second protrusion 29 on the rear shell 3 engages with the second limiting groove 26, fixing the rear shell 3 onto the backlight die-cast structure 2. This eliminates the need for gluing and related equipment investment, improving assembly efficiency. The PCBA board 8, backlight panel 4, and rear shell 3 are tightly fixed by connecting four bolts 33 and four injection screw holes 5 around groove 6. The backlight die-casting structure 2 is an integral structure, which reduces interface reflection loss and improves backlight efficiency. By providing a groove 6 with an area smaller than the backlight plate 4 on the backlight plate 4, the back shell 3 is set on the backlight plate 4, which can reduce the cost of the back shell material. The backlight die-casting structure 2 includes a backlight plate 4 and injection screw holes 5. A groove 6 is provided on one side of the backlight plate 4, and the injection screw holes 5 are located in the groove 6. A reinforcing rib 7 is provided on the other side of the backlight plate 4. Panel 1 includes a glass cover plate 12, an optical bonding layer 13, a glass substrate 14, and an optical film assembly 15. The glass cover plate 12 and the glass substrate 14 are connected by the optical bonding layer 13. The optical film assembly 15 is disposed on the glass substrate 14 and includes a reflective film 16 and a light guide plate 17. The light guide plate 17 is disposed on the reflective film 16. A diffusion film 18 is disposed on the reflective film 16. A lower brightness enhancement film 19 is disposed on the diffusion film 18. An upper brightness enhancement film 20 is disposed on the lower brightness enhancement film 19. An anti-spy film 21 is disposed on the upper brightness enhancement film 20. A heat dissipation tape 22 is disposed on the optical film assembly 15 to solve the heat generation problem of LED light source, etc., and ensure that the temperature of the entire screen does not become too high. An FPC board 23 is disposed on the heat dissipation tape 22, and an LED light 24 is disposed on the FPC board 23. A PCBA board 8 is housed within the recess 6. The PCBA board 8 has an MCU software programming port 9, a first connector 10, and a second connector 11. The recess 6 also features a first limiting groove 25 and a second limiting groove 26, and an FPC interface 27 connected to the FPC board 23. The backlight panel 4 and the front panel 1 are connected via clips 34 and T-shaped clips 35, adaptable to different screen sizes and OEM customization requirements. The rear cover 3 has multiple sets of mounting holes 36 for vehicle assembly.

[0040] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A vehicle display screen structure, characterized by: Includes a panel (1), a backlight die-casting structure (2) is provided on one side of the panel (1), a back shell (3) is provided on the backlight die-casting structure (2), and the backlight die-casting structure (2) is an integral structure; The backlight die-casting structure (2) includes a backlight plate (4) and an injection screw hole (5). A groove (6) is provided on one side of the backlight plate (4). The injection screw hole (5) is located in the groove (6). A PCBA board (8) is provided in the groove (6). An MCU software writing port (9) is provided on the PCBA board (8). A first connector (10) and a second connector (11) are also provided on the PCBA board (8). The back cover (3) and the PCBA board (8) are connected by bolts (33), the bolts (33) are connected to the injection screw holes (5), the backlight plate (4) is provided with reinforcing ribs (7) on the other side, and the backlight plate (4) and the front panel (1) are connected by buckles (34).

2. The vehicle-mounted display screen structure according to claim 1, characterized in that: The groove (6) is provided with a first limiting groove (25) and a second limiting groove (26), and the groove (6) is also provided with an FPC interface (27).

3. The vehicle-mounted display screen structure according to claim 2, characterized in that: The area of ​​the groove (6) is smaller than the area of ​​the backlight plate (4). The back shell (3) covers the groove (6). The back shell (3) is provided with a first protrusion (28) that cooperates with the first limiting groove (25). The back shell (3) is provided with a second protrusion (29) that cooperates with the second limiting groove (26).

4. The vehicle-mounted display screen structure according to claim 3, characterized in that: The PCBA board (8) is provided with an LVDS connector (30) and a power connector (31).

5. The vehicle-mounted display screen structure according to claim 4, characterized in that: The rear shell (3) is provided with through holes (32) that mate with the LVDS connector (30) and the power connector (31).

6. The vehicle-mounted display screen structure according to claim 5, characterized in that: The panel (1) includes a glass cover plate (12), a glass substrate (14), and an optical film assembly (15). The glass cover plate (12) and the glass substrate (14) are connected by an optical bonding adhesive layer (13). The optical film assembly (15) includes a reflective film (16) and a light guide plate (17). The reflective film (16) is disposed on the glass substrate (14), and the light guide plate (17) is disposed on the reflective film (16). The light guide plate (17) is provided with a diffusion film (18), a lower brightness enhancement film (19) is provided on the diffusion film (18), an upper brightness enhancement film (20) is provided on the lower brightness enhancement film (19), and a privacy film (21) is provided on the upper brightness enhancement film (20). The side of the light guide plate (17) is provided with a heat dissipation tape (22).

7. The vehicle-mounted display screen structure according to claim 6, characterized in that: An FPC board (23) is provided on the heat dissipation tape (22), the FPC interface (27) is connected to the FPC board (23), and an LED light (24) is provided on the FPC board (23).

8. A vehicle-mounted display screen structure according to any one of claims 1-7, characterized in that: The rear shell (3) is provided with multiple sets of assembly holes (36) that are compatible with the vehicle.

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