Display device and vehicle

Abstract

The utility model provides a display device and a vehicle, and relates to the field of display devices. The display device comprises a body, a main control board, a display module and a damping module with a plurality of damping elements, the main control board, the display module and the damping module are arranged in the shell; the main control board is connected with the display module; the damping element is arranged between the shell and the display module and / or between the display module and the main control board, and is configured to buffer the display device based on the damping element. The display device integrates multiple functions, the driving safety, efficiency and reliability are improved, meanwhile, the user experience is improved, and energy conservation and emission reduction are promoted. The display device is used for a vehicle, can monitor the vehicle and the environment in real time, and helps a driver to reduce accident risks; the emergency rescue function is used for quickly positioning and sending help-seeking information, and the navigation and sensing system optimizes a route and a decision; the highly integrated design reduces faults, supports remote monitoring and personalized customization, and promotes green development through energy consumption management.

Description

Technical Field

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

[0002] In the modern transportation environment, large transport vehicles are increasingly required to operate in complex terrain and harsh weather conditions. This requires in-vehicle display systems to have higher levels of functional integration and intelligence to meet increasingly stringent transportation needs and operating environments.

[0003] However, traditional in-vehicle display systems have numerous limitations that make them difficult to meet practical needs. These systems suffer from single functions, insufficient intelligence, poor environmental adaptability, limited data exchange, and a lack of scalability. These drawbacks make them difficult to meet driving demands in complex road conditions, reducing driving safety and efficiency while increasing the management complexity and upgrade costs of the in-vehicle system. Utility Model Content

[0004] In view of the above problems, the purpose of the embodiments of the present application is to provide a display device and a vehicle. The display device can adapt to complex environments such as mountains, sandy areas, and cold areas by integrating functions such as navigation, driving assistance, environmental perception, and emergency rescue, and ensure normal operation under various conditions; at the same time, intelligent data analysis provides the driver with real-time driving suggestions, reduces the driving burden, and improves driving safety.

[0005] In a first aspect, an embodiment of the present application provides a display device, which includes: a shell, a main control board, a display module and a shock-absorbing module having multiple shock-absorbing elements; the main control board, the display module and the shock-absorbing module are arranged in the shell; the main control board is connected to the display module; the shock-absorbing element is arranged between the shell and the display module and / or between the display module and the main control board, and is configured to buffer the display device based on the shock-absorbing element.

[0006] In the above implementation process, the display device structure provided by the embodiment of the present application includes a housing, a main control board, a display module, and a shock-absorbing module. By disposing the shock-absorbing elements between the housing and the display module, and between the display module and the main control board, it is possible to effectively buffer the vibration and impact generated during vehicle driving, thereby improving the stability and durability of the display device. By integrating highly reliable design and intelligent functions, the stability of the system and the user experience are significantly improved. The highly integrated design reduces failure points and enhances system reliability, while the rich information display and intelligent functions improve the driver's operating convenience and driving safety.

[0007] Optionally, in an embodiment of the present application, the shell includes an upper shell and a lower shell having a bottom surface and a side surface; the first end of the side surface is connected to the bottom surface, and the upper shell is connected to the second end of the side surface; the upper shell and the lower shell are configured to accommodate the main control board, display module and shock absorption module in a rectangular groove-shaped accommodation space formed by the upper shell and the lower shell.

[0008] In the above implementation, the housing structure of the display device provided in the embodiment of the present application comprises an upper shell and a lower shell, forming a rectangular, trough-shaped accommodation space for accommodating the main control board, display module, and shock-absorbing module. The lower shell provides basic support, and the upper and lower shells are connected to form an enclosed protective space, effectively protecting the internal components.

[0009] Optionally, in an embodiment of the present application, a plurality of heat dissipation holes are provided on the side surface, and the diameter of the heat dissipation holes ranges from 3 mm to 4 mm.

[0010] In the above implementation process, a plurality of heat dissipation holes with a diameter ranging from 3 mm to 4 mm are set on the side of the shell of the display device provided in the embodiment of the present application, so as to effectively release the heat generated inside and prevent the components from overheating, thereby improving the stability and reliability of the equipment.

[0011] Optionally, in an embodiment of the present application, the display device further includes shielding glass; the size of the shielding glass is consistent with the bottom surface size inside the rectangular groove-shaped accommodating space; the shielding glass is clamped in the rectangular groove-shaped accommodating space and contacts the bottom surface.

[0012] In the above implementation process, the display device of the embodiment of the present application is equipped with shielding glass of the same size as the bottom surface. This glass is clamped into the rectangular groove-shaped accommodation space and contacts the bottom surface. Its main function is to provide electromagnetic shielding, effectively isolating external electromagnetic interference while preventing the leakage of internal electromagnetic radiation. In other words, the shielding glass provided in the display device provided by the embodiment of the present application not only improves the electromagnetic compatibility of the display device, but also ensures the stability and reliability of the system.

[0013] Optionally, in an embodiment of the present application, the lower shell further includes a visual window; the visual window is arranged opposite the display module in a direction perpendicular to the bottom surface, and the size of the visual window is adapted to the size of the display unit of the display module; the visual window is configured to observe the display unit through the visual window.

[0014] In the above implementation, the display device provided in the embodiment of the present application includes a viewing window on the lower housing that matches the dimensions of the display unit of the display module. This viewing window is positioned directly opposite the display module and allows for clear viewing of the displayed content from outside the lower housing. By utilizing transparent materials and a precisely dimensioned design, the viewing window effectively provides external visibility of displayed information while ensuring complete protection of the display module.

[0015] Optionally, in an embodiment of the present application, the shock-absorbing element includes a shock-absorbing material and a fixing member; the shock-absorbing material is arranged on both sides of the display module in a direction perpendicular to the bottom surface; the shock-absorbing material includes a hollow area adapted to the size of the display unit; the fixing member is configured to pass through the shock-absorbing material and fix the display module and the shell.

[0016] In the above implementation, the shock-absorbing element in the embodiment of the present application is composed of a shock-absorbing material and a fixing member. The shock-absorbing material is provided on both sides of the display module and has a hollow area that matches the size of the display unit. The fixing member passes through the shock-absorbing material to firmly connect the display module to the housing. This effectively reduces the impact of vibration and impact on the display module, improving the stability and durability of the display device.

[0017] Optionally, in an embodiment of the present application, the main control board includes: a data processing unit, a data acquisition unit and a communication unit; the data processing unit is connected to the data acquisition unit and the communication unit; the data acquisition unit is configured to receive sensor collected data, and the data processing unit is configured to process the data to be processed including the sensor collected data, and generate data processing results; the communication unit is configured to realize data interaction between the display device and the server.

[0018] In the above-mentioned implementation process, the display device main control board in the embodiment of the present application includes a data processing unit, a data acquisition unit, and a communication unit, which work together to realize highly integrated vehicle data processing and interaction functions. The data acquisition unit connects to various sensors on the vehicle (such as voltage, current, frequency, temperature, humidity, and pressure sensors) through its sensor interface to collect real-time environmental data inside and outside the vehicle. The data processing unit receives these sensor data and integrates the data processing functions of GPS, radar, infrared and other sensors to provide driving suggestions or automatically perform some driving operations through real-time analysis. The communication unit includes a wireless communication module (such as Wi-Fi and Bluetooth modules) and a network interface to realize data interaction between the vehicle and the remote monitoring center, and supports the sending and receiving of emergency rescue information. Through efficient data acquisition, processing and communication, the overall system improves the vehicle's intelligence level and operational safety, ensuring that the driver can obtain timely driving information and emergency rescue support.

[0019] Optionally, in an embodiment of the present application, the main control board also includes a power supply circuit, an input optoelectronic isolation circuit and a clock circuit; the power supply circuit is configured to provide power to the display device; the input optoelectronic isolation circuit is configured to reduce electromagnetic interference of the input signal; and the clock circuit is configured to provide a reference clock signal to the digital circuit in the main control board.

[0020] Optionally, in an embodiment of the present application, the power circuit includes an inner electrical layer, a heat sink and a heat conductor; the heat conductor is arranged between the inner electrical layer and the heat sink; the heat sink is configured to dissipate heat for the inner electrical layer, and the heat conductor is configured to accelerate heat dissipation.

[0021] In a second aspect, an embodiment of the present application provides a vehicle, which includes a display device as described in the first aspect of the present application.

[0022] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the following embodiments are given in conjunction with the accompanying drawings for detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A first schematic diagram of the structure of a display device provided in an embodiment of the present application;

[0025] Figure 2 A second schematic diagram of the structure of a display device provided in an embodiment of the present application;

[0026] Figure 3 A schematic diagram of shielding glass provided in an embodiment of the present application;

[0027] Figure 4 A system diagram of the main control board provided in an embodiment of the present application;

[0028] Figure 5 A schematic diagram of the modules of the main control board provided in the embodiment of the present application;

[0029] Figure 6 This is a structural example diagram of the first power supply circuit provided in an embodiment of the present application;

[0030] Figure 7 This is a diagram illustrating a structure of a second power supply circuit provided in an embodiment of the present application;

[0031] Figure 8 This is a diagram illustrating a structure of a switching isolation circuit provided in an embodiment of the present application;

[0032] Figure 9 The analog signal conditioning circuit provided in the embodiment of the present application;

[0033] Figure 10 An example diagram of the structure of a clock circuit provided in an embodiment of the present application;

[0034] Figure 11 32.768K crystal oscillator circuit diagram provided in the embodiment of this application;

[0035] Figure 12 25M crystal oscillator circuit diagram provided in the embodiment of this application;

[0036] Figure 13 A schematic diagram of the circuit layout of the main control board provided in an embodiment of the present application;

[0037] Figure 14 A communication interface circuit diagram provided in an embodiment of the present application;

[0038] Figure 15 The CAN interface circuit provided in the embodiment of the present application;

[0039] Figure 16 A schematic diagram of the indication settings provided in an embodiment of the present application;

[0040] Figure 17 The JTAG circuit provided in the embodiment of the present application;

[0041] Figure numerals: display device-100; housing-110; upper shell-111; lower shell-112; bottom surface-1121; side surface-1122; second end of the side surface-C2; first end of the side surface-C1; visual window-1123; heat dissipation hole-1124; main control board-120; data processing unit-121; data acquisition unit-122; communication unit-123; power supply circuit-124; input optoelectronic isolation circuit-125; clock circuit-126; display module-130; shock-absorbing module-140; shock-absorbing element-141; shock-absorbing material-1411; fixing member-1412; shielding glass-150. DETAILED DESCRIPTION

[0042] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0044] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0045] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0047] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0048] An in-vehicle display system refers to an electronic device installed inside a vehicle that provides various information and functions related to vehicle operation. It can enhance the driving experience and ensure a safe, efficient and comfortable driving environment by providing key information and intelligent assistance functions in real time.

[0049] During the research process, the applicant discovered that traditional vehicle-mounted display systems have many defects.

[0050] First, traditional in-vehicle display systems have a single function and can usually only display basic information such as vehicle speed and fuel level. They lack the ability to comprehensively monitor vehicle status and perceive the environment. Especially when facing steep and complex road conditions, drivers lack the necessary information support, which reduces driving safety and efficiency.

[0051] Secondly, traditional in-vehicle systems are not intelligent enough. They lack the ability to analyze and make decisions based on real-time data, making them unable to provide effective driving advice or perform automated operations. This not only increases the driver's workload but can also lead to accidents due to human error.

[0052] Furthermore, traditional in-vehicle systems have poor environmental adaptability, and their performance and stability are easily affected in harsh environments such as mountains, sand, and snow. For example, displays may malfunction in extreme temperatures, and sensors and data transmission lines may be damaged on bumpy roads, further affecting system reliability.

[0053] In addition, traditional in-vehicle systems have limited data interaction capabilities and can usually only provide basic data display, but are unable to effectively share and interact with other vehicle systems or remote monitoring centers, making it difficult to achieve comprehensive monitoring and management of the vehicle, and delaying the discovery and resolution of problems.

[0054] Finally, traditional systems lack scalability and customizability, and their design lacks flexibility, making it difficult to meet the needs of different vehicle models and regions. Vehicle upgrades or modifications often require large-scale system adjustments, increasing costs and risks.

[0055] Based on this, the display device provided in the embodiments of this application integrates a navigation and positioning system, a driver assistance system, an environmental perception system, and an emergency rescue system, making it particularly suitable for use in complex environments such as mountainous areas, sandy areas, and snowy areas. This display device not only monitors and displays the vehicle's internal and external conditions in real time, but also collects and analyzes various sensor data, aiming to improve the safety, operational efficiency, and environmental adaptability of large transport vehicles.

[0056] Please see Figure 1 , Figure 1 This is a first schematic diagram of the structure of a display device provided in an embodiment of the present application; an embodiment of the present application provides a display device 100, which includes: a shell 110, a main control board 120, a display module 130 and a shock-absorbing module 140 having multiple shock-absorbing elements 141.

[0057] The main control board 120, display module 130, and shock-absorbing module 140 are disposed within the housing 110. The housing 110 is the external protective structure of the display device 100, primarily providing mechanical protection and housing internal components. The housing 110 is typically made of a durable material, such as plastic or metal, to ensure the reliability of the display device 100 under various environmental conditions. In the embodiments of the present application, the housing 110 is rationally designed to accommodate the main control board 120, display module 130, and shock-absorbing module 140, while also providing ventilation and heat dissipation.

[0058] The main control board 120 is connected to the display module 130. The main control board 120 is the core circuit board of the display device 100, responsible for processing data and controlling the operation of the display module 130. The main control board 120 receives and processes data from various modules to ensure accurate and timely updates of displayed content. The display module 130 is responsible for converting data into visual information and typically includes a display screen (such as an LCD or OLED) and associated driver circuitry. Using information provided by the main control board 120, the display module 130 displays vehicle speed, fuel level, navigation data, and other information to the driver in graphical or textual form.

[0059] The shock absorbing element 141 is disposed between the housing 110 and the display module 130 and / or between the display module 130 and the main control board 120 , and is configured to achieve buffering for the display device 100 based on the shock absorbing element 141 .

[0060] The main function of the shock absorbing module 140 is to mitigate the impact of vehicle vibration on the display device 100 through the shock absorbing element 141, thereby improving the stability of the display device 100. The shock absorbing element 141 can be, for example, a rubber pad, a spring, or other flexible material. In the embodiment of the present application, the shock absorbing element 141 can be disposed between the housing 110 and the display module 130, or between the display module 130 and the main control board 120. Its function is to absorb and mitigate the vibration and impact generated by the vehicle's movement, preventing these forces from being transmitted to internal components, thereby avoiding component damage or performance degradation.

[0061] pass Figure 1 It can be seen that the display device 100 provided in the embodiment of the present application includes a housing 110, a main control board 120, a display module 130, and a shock-absorbing module 140. By arranging the shock-absorbing element 141 between the housing 110 and the display module 130, and between the display module 130 and the main control board 120, it is possible to effectively buffer the vibration and impact generated during the vehicle's driving, thereby improving the stability and durability of the display device 100. By integrating highly reliable design and intelligent functions, the stability of the system and the user experience are significantly improved. The highly integrated design reduces failure points and enhances the reliability of the system, while the rich information display and intelligent functions improve the driver's operating convenience and driving safety.

[0062] Please see Figure 2 , Figure 2 This is a second schematic structural diagram of a display device provided in an embodiment of the present application; the housing 110 includes an upper housing 111 and a lower housing 112 having a bottom surface 1121 and side surfaces 1122 .

[0063] The first end C1 of the side is connected to the bottom surface 1121, and the upper shell 111 is connected to the second end C2 of the side. The upper shell 111 and the lower shell 112 are configured to accommodate the main control board 120, the display module, and the shock absorption module 140 in the rectangular groove-shaped accommodation space formed by the upper shell 111 and the lower shell 112.

[0064] In the above implementation process, the upper shell 111 is connected to the second end C2 of the side of the lower shell 112, and the connection between the upper shell 111 and the lower shell 112 forms a rectangular groove-shaped accommodating space for accommodating the internal main control board 120, display module 130 and shock absorption module 140.

[0065] The shell 110 of the embodiment of the present application is made of aluminum alloy 6061 (GB / T3880-2012), which is a heat-treatment-strengthened alloy widely used in fields such as aerospace. This alloy has excellent formability, weldability and machinability, while also having sufficient strength. The main alloying elements are magnesium and silicon, which form a Mg2Si phase, thereby improving the yield strength, tensile strength and hardness of the shell 110. In addition, the alloy contains a certain amount of manganese and chromium to neutralize the adverse effects of iron, and a small amount of copper or zinc is added to enhance the strength of the alloy without significantly reducing its corrosion resistance. The lower shell 112 of the shell 110 adopts a CNC one-piece molding process, which has the advantages of high processing precision, the ability to process complex surfaces, high production efficiency, and stable processing quality.

[0066] pass Figure 2 As can be seen, the housing 110 of the display device 100 provided in the embodiment of the present application is composed of an upper housing 111 and a lower housing 112, forming a rectangular, trough-shaped accommodation space for accommodating the main control board 120, display module 130, and shock absorption module 140. The lower housing 112 provides basic support, and the upper and lower housings 111 and 112 are connected to form a closed protective space, effectively protecting the internal components.

[0067] Please continue to see Figure 2 In an optional embodiment, the side surface 1122 is provided with a plurality of heat dissipation holes 1124 , and the diameter of the heat dissipation holes 1124 ranges from 3 mm to 4 mm.

[0068] For example, the heat dissipation holes 1124 are generally evenly distributed on the side surface 1122 to ensure that heat can be effectively transferred from the housing 110 to the external environment.

[0069] The diameter of the heat dissipation holes 1124 can be selected to be in the range of 3 mm to 4 mm, which can ensure sufficient air circulation without affecting the structural strength of the housing 110. Preferably, the side surface 1122 of the lower housing 112 is evenly provided with 4 rows and 9 columns of heat dissipation holes 1124 with a diameter of 3.2 mm, which can effectively improve the heat dissipation performance of the product and increase the stability of the system.

[0070] It can be seen from this that the side 1122 of the shell 110 of the display device 100 provided in the embodiment of the present application is provided with multiple heat dissipation holes 1124 with a diameter ranging from 3mm to 4mm, which can effectively release the heat generated inside and prevent the components from overheating, thereby improving the stability and reliability of the equipment.

[0071] Please see Figure 3 , Figure 3 This is a schematic diagram of the shielding glass 150 provided in an embodiment of the present application; the display device 100 provided in an embodiment of the present application also includes the shielding glass 150.

[0072] The size of the shielding glass 150 is consistent with the size of the bottom surface 1121 inside the rectangular parallelepiped trough-shaped accommodation space. The shielding glass 150 is clamped in the rectangular parallelepiped trough-shaped accommodation space and contacts the bottom surface 1121 .

[0073] The shielding glass 150 provided in this embodiment of the present application has dimensions consistent with the bottom surface 1121 within the rectangular trough-shaped receiving space. Shielding glass 150 completely covers and contacts bottom surface 1121, forming a closed shielding layer. Shielding glass 150 is clipped into the rectangular trough-shaped receiving space, ensuring stability within the trough and preventing displacement or loosening, while also facilitating installation and removal.

[0074] It should be noted that the shielding glass 150 uses electromagnetic shielding materials that can effectively block and absorb electromagnetic interference; for example, it can be made of metal coating or conductive material, which can prevent electromagnetic waves from passing through, protect internal electronic components from external electromagnetic interference, and prevent internal electromagnetic radiation from affecting the external environment.

[0075] Shielding glass 150, illustratively, wire mesh shielding glass 150, its manufacturing process includes using high-strength glass and resin as raw materials, adding a metal wire mesh interlayer thereto, and processing it through special processes such as high temperature. The wire mesh shielding glass 150 can effectively shield radiation and electromagnetic waves while maintaining high fidelity and high clarity of dynamic color images, and also has partial explosion-proof properties. The wire mesh shielding glass 150 uses a 2mm copper foil edging to ensure good internal conductivity. The wire mesh adopts a 100 mesh specification, and the wire mesh angle is 0 degrees, which not only ensures display clarity but also maximizes good electromagnetic compatibility.

[0076] In this embodiment, the shielding glass 150 measures 143.5 x 55.1 x 2 mm (width x height x thickness). During installation, it is secured to the corresponding slot in the lower housing 112 using conductive adhesive. After installation, the interior of the glass is flush with the slot, while the exterior closely adheres to the window opening in the lower housing 112, ensuring the overall structural flatness and electromagnetic shielding effectiveness.

[0077] pass Figure 3 As can be seen, the display device 100 of the embodiment of the present application is equipped with a shielding glass 150 having the same size as the bottom surface 1121. The glass is snapped into the rectangular groove-shaped receiving space and contacts the bottom surface 1121. Its main function is to provide electromagnetic shielding, effectively isolating external electromagnetic interference while preventing the leakage of internal electromagnetic radiation. In other words, the shielding glass 150 provided in the display device 100 provided by the embodiment of the present application not only improves the electromagnetic compatibility of the display device 100, but also ensures the stability and reliability of the system.

[0078] Please continue to see Figure 2 The lower shell 112 of the display device 100 provided in the embodiment of the present application also includes a visual window 1123.

[0079] The viewing window 1123 is arranged in a direction perpendicular to the bottom surface 1121 and facing the display module 130. The size of the viewing window 1123 is adapted to the size of the display unit of the display module 130. The viewing window 1123 is configured so that the display unit can be observed through the viewing window 1123.

[0080] In the above implementation, the viewing window 1123 is installed so that it aligns with the display unit of the display module 130, allowing the contents of the display module 130 to be viewed from outside the lower housing 112. The viewing window is typically made of a transparent or translucent material, such as acrylic (PMMA), polycarbonate (PC), or glass. Transparent materials allow light to pass through, allowing the contents of the display module 130 to be visible through the viewing window 1123. When selecting the material, impact resistance and durability should also be considered to accommodate the vibration and temperature fluctuations experienced in the vehicle environment.

[0081] As can be seen, the display device 100 provided in this embodiment includes a viewing window 1123 on the lower housing 112 that matches the size of the display unit of the display module 130. This viewing window 1123 is positioned directly opposite the display module 130 and allows for clear viewing of the displayed content from outside the lower housing 112. By employing transparent materials and a precisely dimensioned design, viewing window 1123 effectively provides external visibility of the displayed information while ensuring complete protection of the display module 130.

[0082] Please continue to see Figure 2 The shock absorbing element 141 in the embodiment of the present application includes a shock absorbing material 1411 and a fixing member 1412 .

[0083] Shock-absorbing material 1411 is provided on both sides of the display module 130 perpendicular to the bottom surface 1121. Shock-absorbing material 1411 includes a hollowed-out area adapted to the size of the display unit. In other words, in this embodiment of the present application, shock-absorbing material 1411 is primarily provided on both sides of the display module 130 perpendicular to the bottom surface 1121. Its function is to absorb and reduce vibration and shock generated by the vehicle environment, protecting the display module 130 from external vibration and shock.

[0084] The shock-absorbing material 1411 includes hollow areas that match the size of the display unit. These hollow areas are consistent with the size of the display portion of the display unit, preventing the shock-absorbing material 1411 from obstructing the view of the display unit and ensuring that the shock-absorbing material 1411 is evenly distributed on both sides of the display module 130, providing an effective cushioning effect.

[0085] For example, commonly used shock-absorbing materials 1411 include rubber, foam plastics (such as EVA foam), silicone, or foam, which have excellent vibration absorption and shock-absorbing properties. Preferably, foam is used as shock-absorbing material 1411, and the foam is made of EPDM (ethylene propylene diene monomer). EPDM is a terpolymer of ethylene, propylene, and a non-conjugated diene. EPDM is a primarily saturated polymer with excellent aging resistance, weatherability, electrical insulation, chemical resistance, and impact resilience. Specifically, it has: a) excellent aging, ozone, and weather resistance, with a service life of up to 30 years, meeting the service life requirements of the technical specifications. b) excellent high and low temperature resistance, allowing for long-term use at temperatures of 160°C and maintaining good elasticity at -40°C, maintaining normal operation in both high and low temperature environments as required by the technical specifications. c) low compression, with a permanent deformation as low as 15%. This ensures that the product remains stable under long-term compression or stress, and returns to its original position after the force is removed, enhancing the product's vibration resistance. d) Excellent corrosion resistance, resistant to brake fluid, water, coolant, detergent, strong alkali, and other chemical media, and adaptable to salt spray environments. e) Good water resistance, does not absorb moisture, and will not affect devices and circuits in hot and humid environments. f) Excellent electrical insulation performance, with high volume resistivity.

[0086] The fixing member 1412 is configured to pass through the shock-absorbing material 1411 and fix the display module 130 and the housing 110 .

[0087] The fixing member 1412 is used to fix the shock-absorbing material 1411 to the display module 130 and the housing 110, ensuring that the shock-absorbing material 1411 is stable and immovable in its working position. For example, the fixing member 1412 may include a screw, a washer, a clamp, etc., which is used to pass through the shock-absorbing material 1411 and fix it between the display module 130 and the housing 110.

[0088] In the embodiment of the present application, the fixing member 1412 has excellent tensile strength and toughness, and can maintain structural integrity and is not easily deformed or broken when dropped or impacted. The fixing member is designed to disperse and absorb impact forces, effectively reducing the impact of external shocks on the device, thereby enhancing its earthquake resistance.

[0089] In addition to using the aforementioned shock-absorbing material 1411, the layout of the PCB components was designed by placing the heavy power module closer to the support point to improve structural rigidity. Furthermore, the printed circuit board mounting the integrated circuit and discrete components was strengthened through optimized structural design. For example, the proper placement of mounting screws was carefully considered, which also achieved a certain degree of shock absorption.

[0090] In addition, for sensitive components such as display screens, suspension or elastic installation methods can be used to reduce the impact of vibration.

[0091] As can be seen, the shock-absorbing element 141 in the embodiment of the present application is composed of a shock-absorbing material 1411 and a fixing member 1412. The shock-absorbing material 1411 is provided on both sides of the display module 130 and has a hollow area that matches the size of the display unit. The fixing member 1412 passes through the shock-absorbing material 1411, firmly connecting the display module 130 to the housing 110. This effectively reduces the impact of vibration and shock on the display module 130, improving the stability and durability of the display device 100.

[0092] In an optional embodiment, the display device 100 includes a temperature sensor and a heating element; the temperature sensor is configured to collect ambient temperature, and the heating element is configured to heat the display device 100 when the ambient temperature is lower than a low temperature threshold.

[0093] Temperature sensors, such as thermistors (NTC / PTC), thermocouples, or integrated temperature sensors (such as LM35), can send a signal when the ambient temperature falls below a set low temperature threshold to trigger the operation of the heating element.

[0094] The heating element, such as a heating wire, a ceramic heater, or a PTC heating element, is used to automatically heat the display device 100 when the ambient temperature falls below a set low-temperature threshold. This ensures that the display device 100 maintains a suitable operating temperature in a low-temperature environment, thereby preventing poor display effects or device damage due to low temperatures.

[0095] As for the installation position of the temperature sensor, it can be installed inside the display device 100 or near the display module 130 to accurately collect the ambient temperature.

[0096] The heating element may be installed at a suitable location inside the display device 100 to effectively heat the entire device, for example, fixed on the back of the display module 130 or inside the housing of the display device 100 .

[0097] As can be seen, in the embodiment of the present application, the display device 100 is equipped with a temperature sensor and a heating element. The temperature sensor monitors the ambient temperature in real time, while the heating element automatically heats the display device 100 when the temperature falls below a set threshold. This ensures that the display device 100 can maintain a suitable operating temperature in low-temperature environments, preventing a degradation of the display effect or damage to the device due to excessively low temperatures, thereby improving the reliability and functional adaptability of the device.

[0098] Please see Figure 4 and Figure 5 , Figure 4 A system diagram of the main control board provided in an embodiment of the present application; Figure 5 Schematic diagram of the modules of the main control board provided in an embodiment of the present application; the main control board 120 includes: a data processing unit 121, a data acquisition unit 122 and a communication unit 123.

[0099] The data processing unit 121 is connected to the data acquisition unit 122 and the communication unit 123 .

[0100] The data acquisition unit 122 is configured to receive sensor collected data, and the data processing unit 121 is configured to process the data to be processed including the sensor collected data, and generate a data processing result.

[0101] The communication unit 123 is configured to implement data interaction between the display device 100 and the server.

[0102] In the above implementation process, the data acquisition unit 122 has a sensor interface that is connected to various sensors on the vehicle, such as voltage, current, frequency, temperature, humidity, pressure, etc., and can collect environmental data inside and outside the vehicle in real time.

[0103] Data processing unit 121 receives data from sensor interfaces (various on-board sensors, such as voltage, current, frequency, temperature, humidity, and pressure, capable of collecting real-time data on the vehicle's internal and external environments) collected by data acquisition unit 122. This data processing unit 121 integrates data processing capabilities for GPS, radar, infrared, and other sensors. By analyzing and processing this data in real time, this unit can provide driving advice to the driver or automatically perform some driving operations.

[0104] The communication unit 123 may include a wireless communication module (such as a Wi-Fi module or Bluetooth module) and a network interface to enable various network connections. The wireless communication module enables data exchange between the vehicle and a remote monitoring center, supporting the sending and receiving of emergency rescue information. Furthermore, real-time data exchange and sharing between the vehicle and the remote monitoring center facilitates vehicle management and dispatch.

[0105] pass Figure 4 As can be seen, the main control board 120 of the display device 100 in the embodiment of the present application includes a data processing unit 121, a data acquisition unit 122, and a communication unit 123, which work together to achieve highly integrated vehicle data processing and interaction functions. The data acquisition unit 122 connects to various sensors on the vehicle (such as voltage, current, frequency, temperature, humidity, and pressure sensors) through its sensor interface to collect real-time environmental data inside and outside the vehicle. The data processing unit 121 receives this sensor data and integrates the data processing functions of GPS, radar, infrared, and other sensors. Through real-time analysis, it provides driving advice or automatically performs some driving operations. The communication unit 123 includes wireless communication modules (such as Wi-Fi and Bluetooth modules) and a network interface, enabling data exchange between the vehicle and a remote monitoring center, supporting the sending and receiving of emergency rescue information. Through efficient data acquisition, processing, and communication, the overall system enhances the vehicle's intelligence level and operational safety, ensuring that the driver can obtain timely driving information and emergency rescue support.

[0106] Please continue to see Figure 4 and Figure 5 The main control board 120 provided in the embodiment of the present application further includes a power supply circuit 124 , an input photoelectric isolation circuit 125 and a clock circuit 126 .

[0107] The power circuit 124 is configured to provide power to the display device 100 .

[0108] The input optoelectronic isolation circuit 125 is configured to reduce electromagnetic interference of the input signal.

[0109] The clock circuit 126 is configured to provide a reference clock signal to the digital circuits in the main control board 120 .

[0110] The power supply circuit 124 in the embodiment of the present application is a dual power supply circuit 124; please refer to Figure 6 and Figure 7 , Figure 6 This is a structural example diagram of the first power supply circuit provided in an embodiment of the present application; Figure 7 This is an example diagram of the structure of the second power supply circuit provided in an embodiment of the present application.

[0111] like Figure 6As shown, the first power supply circuit 124 provided in this embodiment primarily converts an external 24V DC input into a single 5V DC output, where the 5V DC is used to power the display screen and has a power output of 15W. The circuit features a 24V DC input voltage (9V to 36V), a 5V DC output voltage ±1%, and a single output. The circuit also features an isolation rating of 500VDC input to output, 500VDC input to housing, and 500VDC output to housing. The circuit also features an operating temperature range of -55°C to +85°C, a case operating temperature range of -55°C to +105°C, and a package size of 25.4*25.4*10.2mm. The circuit is designed to operate normally with a DC supply voltage between 9V and 31V, meeting the voltage biasing requirements.

[0112] like Figure 7 As shown, the second power supply circuit 124 provided in the embodiment of the present application mainly converts DC5V into 1 channel of DC3.3V. The second power supply circuit 124 has an efficient synchronous buck switching regulator with a power MOSFET tube integrated inside. It has high efficiency and low power consumption under wide loads by reducing the frequency under light loads, built-in soft start and compensation, and uses current mode control to achieve fast loop response and improve loop stability. The shutdown quiescent current of 0.1uA is suitable for applications in battery-powered occasions. Fault protection includes current limiting and short-circuit protection, thermal shutdown with self-recovery, and output overvoltage protection. The circuit periphery is simple, and the output feedback uses 0.1% high-precision resistors to ensure stable and consistent output.

[0113] The main parameters of the second power supply circuit 124 are as follows: input voltage: DC5V (4.5V~42V); output voltage: adjustable from 0.83V to 20V, DC3.3V is used in this solution; output current: 1.2A; switching frequency: 1.2MHz; ambient operating temperature: -40︒C to +125︒C.

[0114] Input optoelectronic isolation circuit 125, please refer to Figure 8 and Figure 9 , Figure 8 This is a diagram illustrating a structure of a switching isolation circuit provided in an embodiment of the present application; Figure 9 This is an analog signal conditioning circuit provided in an embodiment of the present application.

[0115] The input and output circuits of an optocoupler are not connected or share a common ground, thus shielding them from any interference noise from external circuits and preventing interference signals from common impedance coupling. Optocouplers provide excellent safety protection, preventing damage to instruments and meters even when external equipment fails or even when the input signal line is shorted, as the optocoupler's input and output circuits can withstand high voltages of several thousand volts.

[0116] like Figure 8As shown, the switch signal isolation circuit chip in this embodiment of the present application has a total of 27 optoelectronic isolation circuits and 5 reserved expansion interfaces. Key parameters: Power supply: DC 3.3V; Forward voltage: ≤1.4V; Maximum reverse voltage: 6V; Maximum forward current: 50mA; Maximum output current: 50mA; Maximum output voltage: 80V; Current transfer ratio: 300% to 600%; Response time: Maximum 18µs; Fall time: Maximum 18µs; Isolation voltage: 3750VDC; ESD protection: 8kV; Operating temperature: -55°C to +110°C.

[0117] like Figure 9 As shown, voltage and current signals are sent to the MCU through the signal conditioning circuit, which provides rail-to-rail input and output operation. The device features an offset voltage below 20μV and an ultra-low bias current of 10pA, making it suitable for applications requiring high precision and long-term stability. Key parameters include: supply voltage: 2.5V to 5.5V; low supply current: typically 930μV; low offset voltage: 20μV (maximum); ultra-low input bias current: 10pA; large signal voltage gain: typically 145dB at 5V; power supply rejection ratio (PSRR): typically 110dB; common-mode rejection ratio (CMRR): typically 105dB; overload recovery time: 60μs (at VS = 5V); and operating temperature: -40°C to +125°C.

[0118] Clock circuit 126, see Figure 10 , Figure 10 This diagram illustrates the structure of a clock circuit provided in an embodiment of the present application. Clock circuit 126 in this embodiment communicates with the CPU in real time via the I2C bus. It features a built-in, highly stable 32.768 kHz DTCXO (digital temperature-compensated crystal oscillator) that supports the I2C bus's high-speed mode (400 kHz). It can output a 32.768 kHz frequency (with an OE function enabled) and features automatic leap year adjustment (2000 to 2099). It offers a wide timekeeping voltage range of 1.8V to 5.5V and low current consumption of 1uA / 3V (typical). Key parameters: Power supply: DC2.0 to 5.5V; Input high level: GND-0.3 to 7.0V; Input low level: GND-0.3 to VDD+0.3V; Operating temperature: -40°C to +85°C.

[0119] It should be noted that the quartz crystal resonator uses Yangxing crystal oscillator, which has excellent wide temperature frequency and temperature characteristics. The product has the characteristics of small size, high reliability, strong vibration resistance, low excitation, etc. Please refer to Figure 11 and Figure 12 ; Figure 11 32.768K crystal oscillator circuit diagram provided in the embodiment of this application; Figure 12 25M crystal oscillator circuit diagram provided in the embodiment of this application; Figure 11 and Figure 12 Two optional crystal oscillator circuits are provided in the embodiments of the present application.

[0120] The main control board 120 of the embodiment of the present application is also provided with corresponding peripheral I / O, including: 27 switching signals; 6 analog signals; 1 PWM signal; 1 CAN bus communication; and 1 232 serial port communication.

[0121] Specifically, the MCU supports up to 140 general-purpose I / O pins (GPIOs) for 27 switching signals. Each GPIO pin can be configured by software as an output (push-pull or open-drain), input, a peripheral device function, or analog mode, and can be configured with pull-up, pull-down, or no pull-up / pull-down. Except in analog mode, all GPIO pins have high-current drive capability. In the embodiment of the present application, each switching signal corresponds to a general-purpose IO pin, and logic input is implemented through the GPIO port to obtain a switching signal.

[0122] 6-channel analog signals: The ADC on this MCU is an analog-to-digital converter using successive approximation. It has 19 multiplexed channels, capable of converting analog signals from 16 external channels, 2 internal channels, and a battery voltage (VBAT) channel. The A / D conversion of each channel can be configured in single, continuous, scan, or discontinuous conversion modes. In this embodiment, each ADC uses 12-bit resolution (4096 steps), a conversion speed of 2.6 MBPs, and continuous scan conversion mode. With an MCU input full-scale of 3.3V, the resolution is: 3300mV / 4096 = 0.8mV. Within the stable voltage input range of 3.267 to 3.333 (with an error of ±33mV), the ADC sampling accuracy reaches Class 1 accuracy, thus meeting the required AD accuracy.

[0123] One PWM signal: This MCU's 16-bit general-purpose timer supports input capture, enabling it to capture PWM signals. The 16-bit prescaler and counter both have a range of 0 to 65535. In this design, a rising-edge interrupt trigger is used to linearly map the frequency of the 5V square wave signal to the AC power supply. This MCU meets PWM acquisition requirements.

[0124] 1-way CAN bus communication: This MCU complies with CAN bus protocols 2.0A and 2.0B, with a maximum baud rate of 1Mbit / s, supports interrupts for sending and receiving, and clears flags. It has three send mailboxes, accesses bus data via two receive FIFOs with a depth of 3, and has 28 identifier filters. In this embodiment, the communication baud rate is 250kbps, and a 32-bit mask pattern filter is used to interrupt receive data, with each frame of data fixed at 8 bytes. This MCU meets the requirements of CAN communication.

[0125] 1-channel 232 serial port communication: The universal synchronous asynchronous receiver and transmitter (USART) on this MCU provides a flexible and convenient serial data exchange interface. Data frames can be transmitted in full-duplex or half-duplex, synchronously or asynchronously. USART provides a programmable baud rate generator that can divide the system clock to generate the specific frequency required for sending and receiving. The data frame supports transmission starting from the LSB or MSB, and the polarity of the data bit and the TX / RX pin can be flexibly configured. All USARTs support DMA function to achieve high-speed data communication. In the embodiment of the present application, the 232 serial port communication baud rate is 9600Bps, the data frame consists of 8 data bits and 1 stop bit, and the transmission starts from the LSB. The transceiver function is enabled and the interrupt to receive data is turned on. This MCU meets the 232 serial port communication requirements.

[0126] The main control board 120 of the display device 100 provided in the embodiment of the present application also includes a storage unit. The storage unit 262144-bit serial EEPROM is composed of 32768 8-bit words. It adopts an I2C interface, Schmitt trigger, and noise suppression filter input. It has the characteristics of low power and low voltage operation. Main parameters: power supply: DC1.7~5.5V; power supply current: 400kHZ read and write ≤0.3mA; input low level: -0.3~VDDx0.3V; input high level: VDDx0.7~VDD+0.3V; single power supply voltage and high speed: 1MHz; 64-byte page write mode (partial page write is allowed); byte / page write is completed within 3ms; hardware data write protection pin; 1 million erase and write cycles; 100 years of data retention capability; ESD capability: 8KV; ambient operating temperature: -40︒C~+85︒C. Please refer to Figure 13 , Figure 13 This is a circuit diagram of a storage unit provided in an embodiment of the present application; the storage unit has a 100-year data retention capability. At the same time, through a software loop write solution, the write pressure of each subroutine is balanced to 10 addresses, meeting the technical requirements of the cumulative running time preservation function and the service life requirements.

[0127] In addition, please refer to Figure 13 , Figure 13This is a schematic diagram of the circuit layout of the main control board provided in an embodiment of the present application. The design of the main board in this embodiment of the present application fully considers the compatibility, performance stability, and heat dissipation performance of the device, mainly including the following aspects:

[0128] The motherboard layout prioritizes compatibility with the original product. From the outer shell structure to the plug-in specifications and placement, everything remains consistent with the original product to ensure a complete replacement. The X1, X2, X3, X4, and X5 sockets are fixed, with the display socket located near the right side of the motherboard for easy display connection. The DIP switches are positioned corresponding to the openings in the outer shell. The layout is divided into functional areas, including the power supply area, MCU and storage area, clock area, communication interface area, digital signal acquisition area, analog signal acquisition area, and display interface area. The modular design reduces redundant connections and improves circuit reliability. It ensures clear separation between functional modules, maintains appropriate electrical distances to reduce mutual interference, and connects functional modules in a compact and reasonable manner to reduce signal transmission delay. The circuit design does not include high-speed signals. The default line width is 8 mil, the line spacing is 8 mil, and the power line width is 50 mil. The MCU is placed in the center of the printed circuit board, and the decoupling capacitors for the power supply of each IC component are placed nearby. Signal routing is balanced and well-balanced to avoid signal interference.

[0129] Designed for performance stability, the mainboard utilizes a four-layer printed circuit board (PCB). The inner electrical layers serve as ground and power planes, providing excellent shielding and isolation, reducing signal interference and crosstalk, ensuring signal transmission performance, and minimizing electromagnetic radiation. This improves circuit reliability and stability, while also enhancing the board's heat dissipation efficiency and mechanical strength for increased durability. The main power supply utilizes an isolated power supply circuit 124, with filtering components added at the input and output to reduce the impact of power fluctuations on device performance. The input is equipped with protective devices such as varistors, fuses, and TVS diodes to provide overvoltage and overcurrent protection for power supply circuit 124. Power supply circuit 124N1 is located near the power input on X1, and an optical isolator is located near the inside of the socket. External signals are separated from the terminal's internal circuitry via optoelectronic isolators for electrical isolation, preventing circuit damage caused by internal and external voltage mismatches and reducing external signal interference. The motherboard's digital signal inputs, analog signal inputs, RS232, and CAN communication interfaces are all effectively electrically isolated and equipped with appropriate protection devices based on their characteristics, such as isolated power supplies, signal isolation devices, and TVS diodes for overvoltage protection. Communication ports utilize ESD protection, fuses, and TVS diodes. Larger components, such as the main power supply circuit 124 and battery, are reinforced to enhance shock resistance and device stability.

[0130] Please refer to Figure 14 , Figure 14This is a circuit diagram of the communication interface provided by an embodiment of the present application. The communication interface circuit provided by an embodiment of the present application integrates an isolated power supply, a signal isolation chip, and an RS232 transceiver chip into an RS232 interface power integrated isolation module. This product features simple peripheral applications, and its ports utilize electrostatic protection devices such as resettable fuses and TVS diodes to meet EMC standards, enabling reliable and stable RS232 protocol network connectivity.

[0131] Please refer to Figure 15 , Figure 15 A CAN interface circuit is provided for the embodiment of the present application; the CAN interface circuit in the embodiment of the present application adopts IC integration technology to realize a CAN bus transceiver module that integrates power isolation, signal isolation, CAN transceiver and bus protection. The main function is to convert the TTL / CMOS level into the differential level of the CAN bus to achieve signal isolation; 2500VDC electrical isolation can be achieved. The port part is protected against electrostatic discharge by devices such as self-resetting fuses and TVS tubes. The peripheral application of the product is simple, and its port part is protected against electrostatic discharge by devices such as self-resetting fuses and TVS tubes, which meets the EMC protection standards and enables the device to easily achieve reliable and stable CAN bus network connection functions.

[0132] In an optional embodiment, the power circuit 124 includes an inner electrical layer, a heat sink, and a thermal conductor.

[0133] The heat conducting member is arranged between the inner electrical layer and the heat dissipation plate; the heat dissipation plate is configured to dissipate heat for the inner electrical layer, and the heat conducting member is configured to accelerate heat dissipation.

[0134] The inner layer is typically located in the middle layer of a printed circuit board (PCB) and is primarily used for routing power and ground planes. This layer not only transmits electrical energy but also provides a certain degree of heat dissipation due to its large conductive area. Because this layer covers a wide area, it effectively disperses and conducts heat generated during the operation of the power circuit 124, preventing heat accumulation in a localized area.

[0135] The heat sink is typically made of a metal material with good thermal conductivity (such as aluminum or copper) and is placed in close contact with key heat-generating components (such as power ICs or MOSFETs) in the power circuit 124. The heat sink's primary function is to quickly transfer heat generated by the components to a larger surface area and dissipate the heat to the surrounding environment through radiation or convection.

[0136] Thermally conductive components (such as thermally conductive silicone sheets, thermal pads, or thermal paste) are placed between the inner electrical layer and the heat sink. They fill the tiny gaps between the component surface and the heat sink to improve heat transfer. Irregular gaps between the electronic component surface and the heat sink can hinder heat transfer. Thermally conductive components provide a tight fit between the two, and their high thermal conductivity accelerates heat transfer from the inner electrical layer to the heat sink, thereby accelerating the overall heat dissipation process.

[0137] Thermal design: Components generate heat during operation, requiring a sound heat dissipation design to ensure device stability and reliability. The board's inner electrical layers, consisting of the power and ground planes, provide a certain degree of heat dissipation. The power chip heat sink not only dissipates heat through the surface but also connects directly to the inner electrical layer via vias, improving heat dissipation efficiency. A high-conductivity thermally conductive silicone sheet is installed between the module and the heat sink to further improve heat dissipation efficiency, reduce module junction temperature, and avoid unnecessary derating within the operating ambient temperature range.

[0138] During circuit design, to minimize the impact of the natural environment on wiring, high-quality, wear-resistant, cold-resistant, and heat-resistant cables should be selected. During layout, the effects of vibration and turbulence should be considered to avoid excessive internal friction and collisions within the wiring. For critical lines, dual or multiple backup designs can be implemented to ensure that if a problem occurs on one line, a backup line can promptly take over, thereby improving system reliability. In compact layouts, the length and routing of signal lines directly impact signal integrity. Proper routing planning is required to minimize signal reflections, crosstalk, and other issues. For high-speed signal lines, prioritize differential pair routing, and appropriately widen the line width and spacing to minimize signal attenuation and interference. Additionally, appropriate impedance matching and termination resistor strategies should be implemented to ensure signal transmission quality.

[0139] pass Figures 4 to 15 It can be seen that the mainboard of the display device 100 provided in the embodiment of the present application can collect and process the environmental data inside and outside the vehicle in real time through the coordinated work of the data processing unit 121, the data acquisition unit 122 and the communication unit 123, and realize efficient data interaction with the remote monitoring center through the wireless communication module. In addition, the dual power supply circuit 124 design ensures the stability and reliability of the power supply, the optoelectronic isolation circuit effectively reduces electromagnetic interference, and the clock circuit 126 ensures the precise timing of the system. By optimizing the layout, enhancing performance stability and improving the heat dissipation design, the mainboard ensures compatibility with the original product, while improving the reliability and durability of the equipment to meet the usage requirements in different working environments.

[0140] To meet the requirements of a slim display device 100 provided in the embodiments of this application, miniaturized, highly integrated components are preferred. For example, SMDs (surface-mount components) are used rather than through-hole components to reduce space requirements. Furthermore, consideration is given to even more integrated integrated circuits (ICs), such as SoCs (system-on-a-chip), which integrate multiple functions into a single chip, further reducing component count and PCB board area.

[0141] While ensuring functionality, selecting high-performance, low-power components is crucial for improving overall device performance and extending battery life. Low-power design not only helps reduce heat generation but also improves device reliability and stability.

[0142] When selecting components, it's also important to adhere to the principles of universality, cost-effectiveness, ease of procurement, sustainable development, substitutability, upward compatibility, and resource conservation. Ensure that the selected components are widely used, proven, cost-effective, have stable supply, and are easily replaceable. At the same time, fully utilize the component's full functionality and pinout to improve design efficiency and resource utilization.

[0143] During PCB design, slim and long devices often face heat dissipation challenges, especially when high-density components are integrated. Heat dissipation must be fully considered during PCB design. High thermal conductivity substrate materials, such as alumina or aluminum nitride ceramic substrates, can be used. Copper sheets or heat sinks should be placed beneath key heat-generating components. A well-planned PCB layout ensures smooth airflow and reduces the heat island effect.

[0144] Furthermore, the complex and ever-changing cockpit environment of large vehicles places high demands on the mechanical strength and protective performance of the equipment. To ensure sufficient mechanical strength to withstand vibration and shock, PCB board design requires reinforcement at the edges and vulnerable areas. Furthermore, waterproofing and dustproofing are also necessary to ensure the equipment remains functional in harsh environments.

[0145] Finally, to achieve efficient integration and rapid maintenance of the multifunctional display module, a modular design approach was adopted. Different functional modules were divided into independent PCB daughter boards or modular units, connected via standard interfaces or connectors. This not only facilitates quality control and troubleshooting during production and assembly, but also facilitates subsequent maintenance and upgrades.

[0146] In an optional embodiment, the display device 100 in the embodiment of the present application may also be configured as a testability device.

[0147] Please see Figure 16 , Figure 16 This is a schematic diagram of the indication settings provided in the embodiment of the present application; Figure 16As shown, set up 24V, 5V, and 3.3V indicator lights and test points to facilitate fault diagnosis and test the operation of the power supply, display, and logic circuits through these nodes. Set the program running indicator light with a flashing frequency of 1Hz to facilitate observation of the running status of the test program.

[0148] Please see Figure 17 , Figure 17 The JTAG circuit provided in the embodiment of the present application adds a JTAG interface to the circuit design to facilitate debugging and testing, ensuring the testability of the device.

[0149] For spare IO pins or functions, test signals are reserved to detect the internal working status of the device.

[0150] The design fully considers maintenance clearance between components, facilitating access to maintenance instruments and test equipment. The display unit is secured to the front housing 110, while the main control board 120 is secured to the rear panel. The connectors are located on the same side. The length of the connector cables is designed so that when the integrated display assembly is opened, the display panel (front housing 110) and the main control board 120 (rear panel) can be placed flat and side by side, facilitating maintenance and testing.

[0151] Optionally, the structural and electrical design of the display device 100 takes full consideration of ease of commissioning, installation, and maintenance. Specific measures include: the housing 110 utilizes screw fastenings for quick disassembly and component replacement; the printed circuit board's external debugging and connector locations are labeled to prevent incorrect insertion. The hardware design adheres to standardization requirements, ensuring compatibility and portability. The components used are highly standardized and interchangeable. Advanced maintenance design techniques enable rapid and accurate fault detection and location, while strategically placed test points and test interfaces expedite troubleshooting. The main control module and display module 130 are connected via 20-pin fasteners. The housing backplane, display board, mid-layer board, and main control board 120 all utilize screws of the same specification, ensuring that disassembly and replacement of the display board and main control board 120 takes less than five minutes. These operations can be performed directly on the display console, eliminating the need for additional maintenance space. Warning signs and automatic safeguards are incorporated in areas prone to equipment and personnel hazards. The module's edges and internal component corners are rounded to minimize hazards to maintenance personnel. For components with similar shapes but different functions, such as plugs, anti-reverse insertion and anti-wrong insertion structures and signs are used to reduce the possibility of installation errors.

[0152] Optionally, a security design for the display device 100 is also included. First, the compilation process and format of all technical documents and design drawings are strictly implemented in accordance with relevant standardized documents to ensure design specifications. Secondly, on the basis of meeting functional and performance requirements, the reliability of the hardware is improved by minimizing the number and type of components. For example, all fixing screws are M3*8 anti-drop pan head screws. Finally, the electronic components selected are basically domestic mainstream mature components, which not only simplifies the procurement process, but also reduces the difficulty of subsequent procurement.

[0153] Optionally, the safety of the display device 100 is also included. First, safety features are taken into full consideration as early as possible at all stages of research and development to ensure that safety designs are implemented in a timely, economical and effective manner, thereby reducing the need for safety improvements to the product in the later stages. Secondly, single point failures are avoided as much as possible during the design process to ensure that serious dangerous consequences will not occur when a single fault, operating error, or both occur simultaneously. At the same time, sufficient safety margins are set during the design, and derating designs are carried out in accordance with relevant regulations. In addition, fault isolation and electrical interface isolation designs are carried out to prevent secondary faults caused during maintenance and testing from damaging the equipment. The processes, materials, designs, production, testing, and operating technologies with the lowest safety risks are adopted, and three-proof treatment is carried out before delivery. In principle, except for connectors, all parts are sprayed with three-proof paint to reduce accidental damage from acidic and alkaline substances, while reducing electrostatic damage to debugging and maintenance personnel.

[0154] Optionally, to improve the environmental adaptability of the display device 100, the following measures were taken: First, a three-component coating was applied, with the entire display device being sprayed with conformal paint to reduce accidental damage from acidic and alkaline substances and to minimize static damage to commissioning and maintenance personnel. Second, components with low heat generation were selected whenever possible. For example, in a DC-DC power supply module that generates a lot of heat, the relatively low-heating new Leoneng DPA15-W24S5 module was used, and sufficient space was reserved around it to keep it away from other critical components. Third, the module circuit design was optimized to reduce heat generation through current limiting, matching, and improved timing. Furthermore, a balance was struck between thermal and vibration control design, with foam used to secure the perimeter of the board, leaving the intermediate components exposed, to achieve both vibration control and heat dissipation. Furthermore, a balance was struck between electromagnetic compatibility and thermal design, with heat dissipation holes designed in the center of both sides of the display device 100, ensuring that the number and size of the holes balanced electromagnetic compatibility and heat dissipation performance.

[0155] Optionally, the display device 100 is designed for comprehensive electromagnetic compatibility. First, the signal leads on the printed circuit board are shortened and the number of vias is minimized. Second, the circuit board is provided with a power supply layer and a ground layer, and ensures that the external power supply is electrically isolated from the display device 100, while also electrically isolating the communication interface and the switch input. Third, the components on the circuit board are arranged in a reasonable partition, and the analog signals and digital signals are separated to minimize the coupling between them, and decoupling capacitors and matching resistors are provided. Fourth, decoupling capacitors and filter capacitors are appropriately provided on the circuit board, and the principle of wiring separation is followed: high-frequency and low-frequency signals, digital and analog signals, large current and small current signals, general signals and sensitive signals, power lines and signal lines are separated, while ensuring that the wiring length is as short as possible. Finally, shielding glass 150 is used to make the glass window fit the actual visible area of the display screen as closely as possible while ensuring the clarity of the side view, so as to improve the electromagnetic compatibility of the integrated display combination.

[0156] Optionally, adhesive reinforcement is used for integrated circuits and heavier components such as the power module, CAN communication module, 232 serial communication module, clock chip battery, MCU, etc. Internally, avoid using any wires or cables for electrical connections, except for the connection between the main control board 120 and the display panel. A 20-pin fastening connector is used to connect the display panel to the main control board 120.

[0157] The present application provides a vehicle including the above-mentioned display device 100. The vehicle provided in the embodiment of the present application with the above-mentioned display device 100 has high driving safety, driving efficiency, system reliability, user experience, and can achieve energy conservation and emission reduction.

[0158] First, the vehicle display device 100 enables the driver to obtain real-time information about the vehicle status and surrounding environment by integrating advanced monitoring and display technologies. The provision of real-time information gives the driver a more comprehensive understanding of the driving conditions, enabling them to make judgments and take necessary actions more quickly and accurately. In addition, the system's built-in driving assistance function can provide advice to the driver based on real-time data, and even perform partial automatic operations when necessary, which greatly reduces the possibility of human error and effectively reduces the risk of accidents. In the event of an emergency, the system will automatically send a distress message and locate the vehicle, which not only shortens the rescue response time, but also protects the lives of passengers in times of crisis.

[0159] Secondly, the display device 100 supports a high-precision navigation and positioning system, which can provide drivers with accurate route planning and real-time driving guidance, reducing the risk of getting lost and unnecessary detours, thereby improving driving efficiency. The environmental perception system further enhances this efficiency by helping drivers make better driving decisions in complex road and traffic conditions through real-time perception of road conditions. In addition, the system's data processing unit 121 can analyze vehicle operating data in real time and provide energy management recommendations. This enables drivers to optimize energy consumption in daily driving, achieving higher economy and efficiency.

[0160] Thirdly, the vehicle display device 100 utilizes a highly integrated design, reducing system complexity and potential points of failure, thereby improving overall system reliability and stability. The introduction of a wireless communication module enables real-time data exchange with a remote monitoring center, enabling timely identification and resolution of potential issues and reducing system failure rates. The system's hot backup and redundancy further enhance its reliability. Even if a module fails, other modules remain operational, ensuring system continuity and security.

[0161] Fourthly, the vehicle with the display device 100 provided in the embodiments of the present application can enhance the driver's information access convenience and driving experience by providing a rich array of information display and interactive methods. Personalized customization and expanded functionality meet the specific needs of users in different vehicle models and regions, further improving user satisfaction. Intelligent driving assistance functions not only reduce the driver's workload but also improve driving comfort and safety to a certain extent. These intelligent assistance functions make the driving experience more relaxed and enjoyable.

[0162] Fifthly, the vehicle provided with the display device 100 according to the embodiment of the present application uses real-time data analysis and energy consumption management to guide the driver to adopt a more economical driving style, reducing fuel consumption and emissions. When the vehicle is idle or under low load, the system automatically adjusts the vehicle status to reduce unnecessary energy consumption and emissions. The integration of these functions will help promote green development and sustainable development goals in vehicles, especially in the logistics and transportation industry.

[0163] Overall, the vehicle display device 100 significantly improves driving safety and efficiency, enhances system reliability, and enhances the user experience. Furthermore, through energy consumption management and emission control, it contributes to energy conservation and emission reduction. It not only meets the current needs of intelligent driving but also promotes technological advancement and green development in the automotive industry.

[0164] The above are merely examples of the present application and are not intended to limit the scope of protection of the present application. Those skilled in the art will appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A display device, characterized in that: The display device includes: a housing, a main control board, a display module, and a shock absorbing module having a plurality of shock absorbing elements; The main control board, display module and shock absorption module are arranged in the housing; The main control board is connected to the display module; The shock absorbing element is disposed between the housing and the display module and / or between the display module and the main control board, and is configured to achieve buffering for the display device based on the shock absorbing element.

2. The display device according to claim 1, wherein The housing includes an upper shell and a lower shell having a bottom surface and side surfaces; The first end of the side surface is connected to the bottom surface, and the upper shell is connected to the second end of the side surface; The upper shell and the lower shell are configured to accommodate the main control board, the display module and the shock absorption module in a rectangular parallelepiped groove-shaped accommodation space formed by the upper shell and the lower shell.

3. The display device according to claim 2, wherein: The side surface is provided with a plurality of heat dissipation holes, and the diameter of the heat dissipation holes ranges from 3 mm to 4 mm.

4. The display device according to claim 2, wherein: The display device further includes shielding glass; The size of the shielding glass is consistent with the bottom surface size of the rectangular parallelepiped trough-shaped accommodation space; The shielding glass is clamped in the rectangular parallelepiped groove-shaped accommodation space and contacts the bottom surface.

5. The display device according to claim 2, wherein: The lower shell also includes a viewing window; The visual window is arranged in a direction perpendicular to the bottom surface and facing the display module, and the size of the visual window is adapted to the size of the display unit of the display module; The viewing window is configured to allow the display unit to be observed through the viewing window.

6. The display device according to claim 5, wherein: The shock absorbing element includes a shock absorbing material and a fixing member; The shock-absorbing material is provided on both sides of the display module in a direction perpendicular to the bottom surface; the shock-absorbing material includes a hollow area adapted to the size of the display unit; The fixing member is configured to pass through the shock-absorbing material and fixedly connect the display module and the housing.

7. The display device according to claim 1, wherein The main control board includes: a data processing unit, a data acquisition unit and a communication unit; The data processing unit is connected to the data acquisition unit and the communication unit; The data acquisition unit is configured to receive sensor collected data, and the data processing unit is configured to process the data to be processed including the sensor collected data, and generate a data processing result; The communication unit is configured to implement data interaction between the display device and the server.

8. The display device according to claim 7, wherein: The main control board also includes a power supply circuit, an input photoelectric isolation circuit and a clock circuit; The power circuit is configured to provide power to the display device; The input optoelectronic isolation circuit is configured to reduce electromagnetic interference of the input signal; The clock circuit is configured to provide a reference clock signal for the digital circuit in the main control board.

9. The display device according to claim 8, wherein The power supply circuit includes Inner electrical layer, heat sink and thermal conductor; The heat conducting member is arranged between the inner electrical layer and the heat dissipation plate; The heat dissipation plate is configured to dissipate heat for the inner electrical layer, and the heat conducting member is configured to accelerate heat dissipation.

10. A vehicle, characterized in that: The vehicle comprises a display device as claimed in any one of claims 1 to 9.

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