A vehicle-mounted display device

Abstract

The utility model discloses a vehicle display device, including the casing, optical fiber coupler, a plurality of light diffusion plate, control module, the upper end of casing is provided with the upper cover, the optical fiber coupler sets up in the cavity of inside setting of casing to be used for with the single optical fiber cable of adjustable light angle independent transmission light of LED light source, optical fiber cable extends setting towards light diffusion plate and with light diffusion plate one -to -one and with light diffusion plate optical path connection, light diffusion plate is arranged according to the custom pattern symbol of the required interior trim of car and is set up generation custom indicator lamp and with the lower end of upper cover bonding to be used for with the light diffusion of optical fiber is area light and evenly irradiates to custom pattern symbol line back, control module is electrically connected with optical fiber coupler to realize the independent lighting of every optical fiber cable, extinguishing and discoloration control. The utility model realizes independent lighting, extinguishing and discoloration control to every optical fiber cable through control module, and can create the unique, individualized product.

Description

Technical Field

[0001] This utility model relates to the field of vehicle display touch technology, and in particular to a vehicle display device. Background Technology

[0002] In the automotive interior design field, devices commonly equipped with digital displays, such as instrument panels, central infotainment screens, and climate control panels, generally suffer from significant performance limitations. The widely used LCD display technology presents information in a relatively limited format, and the backlight's color reproduction and brightness levels are difficult to dynamically adjust based on driving conditions or user preferences. This results in often monotonous colors and poor contrast, especially noticeable color distortion and reduced visibility when viewed from different angles by the driver or passengers, impacting the intuitiveness and safety of information reading.

[0003] Meanwhile, constrained by the inherent backlight module requirements of LCD technology, the physical structure of such display devices is difficult to achieve a highly thin and light design. Their thickness and size pose a challenge to the increasingly streamlined, integrated, and space-optimized interior layouts of modern automobiles. Furthermore, LCD screens rely on a continuously lit backlight, and the light transmittance of the material itself limits their energy efficiency. Especially in common driving scenarios requiring high brightness or large areas of light-colored backgrounds, power consumption is significantly high. This not only contradicts the energy-saving requirements of automotive electrical systems (especially electric vehicles) but also creates unnecessary energy consumption burdens over long-term operation. These technical shortcomings collectively restrict the overall performance of in-vehicle display devices in terms of visual effects, spatial integration, and energy efficiency, impacting the improvement of the user experience. Summary of the Invention

[0004] This application provides an in-vehicle display device that uses a control module to independently control the lighting, extinguishing, and color changing of each fiber optic cable, enabling the creation of unique and personalized products.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vehicle-mounted display device, comprising...

[0006] The shell has an internal cavity and a top cover plate at the upper end.

[0007] An optical fiber coupler, located within the cavity, is used to independently transmit light from an LED light source via a single optical fiber cable with an adjustable light emission angle.

[0008] Several light diffusers are connected to the optical fiber cable optical path. The optical fiber cable extends toward the light diffuser and corresponds one-to-one with the light diffuser. The light diffuser is arranged according to the customized pattern symbols required for the car interior to generate customized indicator lights and is bonded to the lower end of the top cover to diffuse the optical fiber light into surface light and evenly illuminate the back of the customized pattern symbol lines.

[0009] The control module is electrically connected to the fiber optic coupler to enable independent lighting, extinguishing, and color-changing control of each fiber optic cable.

[0010] Among them, the projection area of ​​the light diffuser can cover the entire display area of ​​the customized pattern symbol lines, and the optical path design meets the directional lighting requirements of the line spectrum signal.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] The arrangement of "customized patterns and symbols" gives the device its core value. Users can design the final display content entirely according to their specific brand identity, functional indications, artistic effects, or cultural symbol requirements. This breaks through the limitations of traditional standard indicator light shapes (such as circles and squares), enabling the creation of unique and highly recognizable visual elements suitable for high-end brand displays, personalized products, or exclusive indications for specific application scenarios. The control module enables "independent lighting, extinguishing, and color-changing control of each fiber optic cable." This means that each "light unit" formed by optical fiber and corresponding light diffuser in the device can be an independent, programmable "pixel" that supports complex dynamic display effects, such as flowing lights, breathing lights, pattern gradients, color changes, and the sequential lighting or extinguishing of specific symbols, far exceeding the static function of traditional single status indicator lights. The core function of the light diffuser is to efficiently diffuse the "point light source" or "small angle beam" output by the optical fiber into a uniform "area light source". "The projection area of ​​the light diffuser can cover the entire display area of ​​the customized pattern symbol lines", ensuring that the lines or areas of the entire customized pattern can be uniformly illuminated without dark corners or uneven brightness, presenting a clear and full visual effect.

[0013] As an improvement, the fiber optic coupler includes a mounting base for centrally mounting fiber optic cables, and the display device also includes a support frame. The support frame includes a mounting part, and a mounting hole is provided at the center of the mounting part corresponding to the mounting base. The upper end of the mounting base is embedded in the mounting hole. The mounting base "centrally mounts" all fiber optic cables and precisely fits them through the "mounting hole" at the center of the support frame. The embedded structure provides a strong mechanical constraint, effectively preventing the coupler from shifting during transportation, use, or environmental vibration, thereby maintaining the optical path alignment accuracy and ensuring that the light can always be accurately transmitted to the corresponding light diffuser.

[0014] As an improvement, the bottom surface of the cavity is provided with a limiting hole corresponding to the support frame. The upper end of the support frame is set in the limiting hole and is fixedly installed on the bottom surface of the cavity through a snap-fit ​​structure. The limiting hole precisely restricts the movement of the support frame (including the coupler) in the horizontal plane (X / Y direction), while the snap-fit ​​structure rigidly constrains the displacement in the vertical direction (Z direction). The mechanical hard limiting ensures that the relative position between the coupler and the cavity and the upper optical diffuser array is absolutely constant, eliminating the risk of optical path deviation from the source.

[0015] As an improvement, the snap-fit ​​structure includes a limiting part that protrudes horizontally in a triangular shape and is distributed on any three sides of the mounting part, and a limiting groove that is recessed in the limiting part corresponding to the limiting hole. The limiting part is set inside the limiting groove. The limiting part design with triangular distribution (any three sides) conforms to the mechanical principle of "three points determine a plane", providing the best resistance to torsion and displacement. It ensures that the support frame will not loosen or rotate when subjected to vibration or unexpected lateral force. Moreover, the limiting groove and limiting part in the three directions share the load, and the stress distribution is more uniform, avoiding deformation or damage caused by excessive force on a single point.

[0016] As an improvement, the display device also includes a capacitive film as a touch unit. The capacitive film is bonded to the lower end face of the upper cover and electrically connected to the control module via an FPC. The capacitive film includes a custom indicator light cutout at the center and several button light-transmitting cutouts on both sides of the custom indicator light cutout. The cavity has button mounting slots protruding from the corresponding button light-transmitting cutouts to accommodate the button modules. The cavity is divided into dedicated areas by structural features. The central area is a pure display domain composed of an optical fiber coupler and a light diffuser, while the two side areas are physical button domains constructed by button mounting slot protrusions. This three-dimensional separation design of the functional areas.

[0017] As an improvement, a housing mounting groove is provided on the lower end face of the housing. The display device also includes a rubber pad set in the housing mounting groove. The rubber pad has a sealing groove protruding from the button mounting groove and the mounting base. The upper ends of the sealing grooves on both sides are embedded in the inside of the button mounting groove, and the lower end of the mounting base is set in the sealing groove located in the center, so as to play the role of dustproof, waterproof and light-shielding. The sealing groove tightly fills the bottom gap of the button mounting groove, forming a physical barrier, completely blocking the path of dust and liquid from entering the cavity through the button movement gap, significantly improving the dustproof and waterproof level of the device. Moreover, the rubber material completely blocks light, preventing external stray light from penetrating into the button mounting groove and interfering with the internal backlight signal, while preventing the button LED light leakage from polluting the external environment.

[0018] As an improvement, the display device also includes a rear cover plate that engages with the inner wall of the housing mounting slot. The control module is located in the housing mounting slot and is fixedly connected to the rear cover plate by several screws. The placement of the control module in the housing mounting slot further enhances the three-dimensional separation design of the functional areas. The engagement of the rear cover plate with the housing mounting slot and the connection of the control module with the rear cover plate by bolts facilitate the removal of the rear cover plate and the control module, thereby enabling the control module to be inspected or replaced. Attached Figure Description

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] Figure 1 An exploded view of a vehicle-mounted display device;

[0021] Figure 2 This is a schematic diagram of an in-vehicle display device;

[0022] Figure 3 This is a schematic diagram showing the fit between the support frame and the limiting hole structure.

[0023] Figure 4 This is a schematic diagram of the housing mounting groove structure.

[0024] The markings in the above figures are as follows: 1. Housing; 1.1. Cavity; 1.2. Limiting hole; 1.2.1. Limiting groove; 1.3. Button mounting groove; 1.4. Housing mounting groove; 2. Top cover plate; 3. Fiber optic coupler; 3.1. Fiber optic cable; 3.2. Mounting base; 4. Light diffuser; 5. Control module; 6. Support frame; 6.1. Mounting part; 6.1.1. Mounting hole; 6.2. Limiting part; 7. Capacitor film; 7.1. Custom indicator light cutout; 7.2. Button light-transmitting area cutout; 8. Rubber pad; 8.1. Sealing groove; 9. Rear cover plate. Detailed Implementation

[0025] In this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "planar direction", "circumferential", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0026] A vehicle-mounted display device includes a housing 1, an optical fiber coupler 3, several light diffusers 4, and a control module 5. The housing 1 contains a cavity 1.1, and a top cover 2 is located at the upper end of the housing 1. The optical fiber coupler 3 is disposed within the cavity 1.1 to independently transmit light from an LED light source through a single optical fiber cable 3.1 with an adjustable light emission angle. The light diffusers 4 are optically connected to the optical fiber cables 3.1, with the optical fiber cables 3.1 extending towards and corresponding one-to-one with the light diffusers 4. The light diffusers 4 are arranged according to customized patterns and symbols required for the automotive interior to generate customized indicator lights and are bonded to the lower end of the top cover 2 to diffuse the optical fiber light into surface light. The light is evenly irradiated onto the back of the customized pattern symbol lines. The control module 5 is electrically connected to the fiber optic coupler 3 to achieve independent lighting, extinguishing, and color-changing control of each fiber optic cable 3.1. The projection area of ​​the light diffuser 4 can cover the entire display area of ​​the customized pattern symbol lines, and the optical path design meets the directional lighting requirements of the line spectrum signal. Preferably, the upper cover plate 2 has beacon and digital symbol display, which can be achieved through injection molding or printing processes. The symbols have two backlight effects: always visible and hidden. The backlight can be defined according to the properties of the appearance material selected by the customer. Preferably, the appearance material selection is diverse and is not limited to plastic, film, wood veneer, glass, fabric, etc.

[0027] The fiber optic coupler 3 includes a mounting base 3.2 for centrally mounting fiber optic cables 3.1. The display device also includes a support frame 6, which includes a mounting part 6.1. The center of the mounting part 6.1 is provided with a mounting hole 6.1.1 corresponding to the mounting base 3.2. The upper end of the mounting base 3.2 is embedded in the mounting hole 6.1.1.

[0028] The bottom surface of cavity 1.1 is provided with a limiting hole 1.2 corresponding to the support frame 6. The upper end of the support frame 6 is set in the limiting hole 1.2 and is connected to the bottom surface of cavity 1.1 through a snap-fit ​​structure to fix the fiber optic coupler 3.

[0029] The snap-fit ​​structure includes a limiting part 6.2 that protrudes horizontally in a triangular shape and is distributed on any three sides of the mounting part 6.1, and a limiting groove 1.2.1 that is recessed in the limiting part 6.2 corresponding to the limiting hole 1.2. The limiting part 6.2 is disposed inside the limiting groove 1.2.1.

[0030] The display device also includes a capacitive film 7 as a touch unit. The capacitive film 7 is bonded to the lower end face of the upper cover plate 2 and electrically connected to the control module 5 via an FPC. The capacitive film 7 includes a custom indicator light cutout 7.1 located at the center and several button light-transmitting area cutouts 7.2 located on both sides of the custom indicator light cutout 7.1. Inside the cavity 1.1, a button mounting groove 1.3 for accommodating the button module is provided protruding from the button light-transmitting area cutout 7.2.

[0031] The lower end face of the housing 1 is provided with a housing 1 mounting groove. The display device also includes a rubber pad 8 disposed in the housing 1 mounting groove. The rubber pad 8 is provided with a sealing groove 8.1 protruding from the button mounting groove 1.3. The upper end of the sealing groove 8.1 is embedded in the inside of the button mounting groove 1.3 to play the role of dustproof, waterproof and light-shielding.

[0032] The display device also includes a rear cover plate 9 that engages with the inner wall of the mounting groove of the housing 1, and the control module 5 is disposed in the mounting groove of the housing 1 and is fixedly connected to the rear cover plate 9 by several screws.

[0033] The mounting base 3.2 of the fiber optic coupler 3 is embedded into the mounting hole 6.1.1 in the center of the support frame 6 to form an integrated optical path module. The limiting part 6.2 of the support frame 6 is aligned with the limiting hole 1.2 on the bottom surface of the cavity 1.1 and pressed down. The triangular snap-fit ​​structure automatically locks it in place. The custom patterned light diffuser sheet 4 array is then bonded to the lower end of the upper cover plate 2, ensuring that the position matches the indicator light design. At the same time, the capacitor film 7 is precisely attached to the upper cover plate 2, and its custom indicator light cutout 7.1 is aligned with the light diffuser sheet 4. The light-transmitting area of ​​the button is cut out. Part 7.2 is aligned with the button mounting slot 1.3. The button module is embedded in the protruding button mounting slot 1.3 of the cavity 1.1. The light-transmitting area is directly opposite the hollow part of the capacitor film 7. The rubber pad 8 is placed into the mounting slot of the housing 1, and its sealing groove 8.1 is pressed into the bottom of the button mounting slot 1.3 to form a triple seal of dust / water / light. The control module 5 is placed into the mounting slot of the housing 1, and is connected to the fiber optic coupler 3 for signal connection and to the capacitor film 7 through FPC. The rear cover plate 9 is engaged and pre-positioned with the housing 1, and the screws are tightened to complete the process.

[0034] When a user touches the key area of ​​the capacitive membrane 7, the capacitance change signal is transmitted to the control module 5 via the FPC. The control module 5 automatically generates a light effect control sequence according to the stored program. The control module 5 parses the instructions and independently controls the designated fiber optic channel to light up / off, change color, and enter dynamic mode. The LED beam adjusts the light output angle through the fiber optic coupler 3, and the light is precisely transmitted to the target light diffuser 4 through a single fiber. The light spot output by the fiber optic illuminates the light diffuser 4, and the diffuser converts the point light source into uniform surface light, meeting the requirement of 100% coverage of the customized pattern display area. The uniform backlight illuminates the back of the customized symbol lines, presenting the following effects: static display such as symbols that are always on / breathing / blinking; dynamic display such as multiple symbols with flowing gradients / color changes; and line spectrum signals such as meeting the special spectral requirements for directional lighting.

[0035] 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 technical solution of the present invention, or the direct application of the concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A vehicle-mounted display device, characterized in that: include The housing has an internal cavity, and a top cover plate is provided at the upper end of the housing; An optical fiber coupler, located within the cavity, is used to independently transmit light from an LED light source via a single optical fiber cable with an adjustable light emission angle. Several light diffusers are connected to the optical path of optical fiber cables. The optical fiber cables extend toward the light diffusers and correspond one-to-one with the light diffusers. The light diffusers are arranged according to the customized patterns and symbols required for the automotive interior to generate customized indicator lights and are bonded to the lower end of the upper cover to diffuse the optical fiber light into surface light and evenly illuminate the back of the customized pattern and symbol lines. The control module is electrically connected to the fiber optic coupler to enable independent lighting, extinguishing, and color-changing control of each fiber optic cable. The projected area of ​​the light diffuser can cover the entire display area of ​​the customized pattern symbol lines, and the optical path design meets the directional lighting requirements of the line spectrum signal.

2. The vehicle-mounted display device according to claim 1, characterized in that: The fiber optic coupler includes a mounting base for centrally mounting fiber optic cables, and the display device also includes a support frame. The support frame includes a mounting part, and a mounting hole is provided at the center of the mounting part corresponding to the mounting base. The upper end of the mounting base is embedded in the mounting hole.

3. The vehicle-mounted display device according to claim 2, characterized in that: The bottom surface of the cavity is provided with a limiting hole corresponding to the support frame. The upper end of the support frame is located in the limiting hole and is connected to the bottom surface of the cavity through a snap-fit ​​structure to fix the fiber optic coupler.

4. The vehicle-mounted display device according to claim 3, characterized in that: The snap-fit ​​structure includes a limiting part that protrudes horizontally in a triangular shape and is distributed on any three sides of the mounting part, and a limiting groove that is recessed in the limiting part corresponding to the limiting hole. The limiting part is disposed inside the limiting groove.

5. The vehicle-mounted display device according to claim 1, characterized in that: The display device also includes a capacitive film as a touch unit. The capacitive film is bonded to the lower end face of the upper cover plate and electrically connected to the control module through an FPC. The capacitive film includes a custom indicator light cutout at the center and several button light-transmitting area cutouts on both sides of the custom indicator light cutout. The cavity has a button mounting groove for accommodating the button module protruding from the corresponding button light-transmitting area cutout.

6. A vehicle-mounted display device according to claim 5, characterized in that: The lower end face of the housing is provided with a housing mounting groove. The display device also includes a rubber pad disposed in the housing mounting groove. The rubber pad is provided with a sealing groove protruding from the button mounting groove and the mounting base. The upper ends of the sealing grooves on both sides are embedded in the inside of the button mounting groove, and the lower end of the mounting base is disposed in the sealing groove located in the center, so as to play the role of dustproof, waterproof and light-shielding.

7. A vehicle-mounted display device according to claim 6, characterized in that: The display device also includes a rear cover plate that engages with the inner wall of the housing mounting slot, and the control module is disposed in the housing mounting slot and fixedly connected to the rear cover plate by a number of screws.

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