Novel vehicle-mounted display screen system

Abstract

The utility model provides a novel vehicle-mounted display screen system. The vehicle-mounted display screen system comprises a printed circuit board, N flexible circuit boards and N display panels, wherein N is an integer greater than or equal to 1; the printed circuit board, the flexible circuit board and the display panel form a display unit; the printed circuit board is connected with the flexible circuit board through a first connector, and the flexible circuit board is connected with the display panel through two second connectors. The plurality of video signals are transmitted to the flexible circuit board through the printed circuit and then transmitted to the display panel through the flexible circuit board. According to the novel vehicle-mounted display screen system, the printed circuit board is adopted as the main board, the flexible circuit board is adopted as the auxiliary board, the area of the main board can be reduced, the product flexibility can be improved, the transmission quality of video signals is improved, the transmission distance of the video signals is increased, and the curved screen design requirement of a current vehicle-mounted display screen can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display screens, specifically to a novel vehicle-mounted display screen system. BACKGROUND

[0002] In modern vehicle-mounted display screen systems, especially when facing the demand for separate large display screens and multiple display screens, traditional design methods may encounter some challenges. These challenges mainly include the following aspects:

[0003] Large PCBA area: Traditional vehicle-mounted display screen systems often use very large printed circuit boards (PCBA) to handle signal input connectors and liquid crystal panel or OLED panel wiring. This design results in a very large PCBA area.

[0004] Large-area PCBA not only increases the difficulty of assembly, but also limits the design freedom of the vehicle-mounted display system. Especially in applications where space is limited or there are specific requirements for the appearance, large-area PCBA will cause difficulties in design.

[0005] Assembly complexity: Large PCBA requires more connections and fixing points during assembly, which increases the complexity of production and assembly.

[0006] Complex assembly process may lead to higher production costs and longer production cycles, and also increases the potential failure points during assembly.

[0007] Modeling limitations: The larger area of traditional PCBA limits the design of display screens, especially in the design of curved screens and ultra-thin screens.

[0008] It cannot meet the individualization and aesthetic requirements of modern cars for display screen design, limiting innovation and design freedom.

[0009] High cost: Large-area PCBA not only means higher material costs, but also may bring more complex manufacturing processes and higher production costs.

[0010] This directly increases the overall cost of the vehicle-mounted display screen system, affecting market competitiveness.

[0011] Signal transmission problems: In traditional designs, signal transmission usually relies on larger circuit boards and complex connectors, which may lead to a decrease in signal transmission quality.

[0012] Poor signal transmission will affect the display effect, leading to a decrease in image quality and affecting user experience. CONTENT OF THE INVENTION

[0013] To solve the above technical problems, the application presents a new type of vehicle-mounted display screen system.

[0014] In a first aspect, the application presents a new type of vehicle-mounted display screen system, which comprises a printed circuit board, N flexible circuit boards and N display panels.

[0015] Wherein, N is an integer greater than or equal to 1.

[0016] The printed circuit board, the flexible circuit board and the display panel form a display unit.

[0017] The printed circuit board is connected to the flexible circuit board through a first connector, and the flexible circuit board is connected to the display panel through two second connectors.

[0018] The video signal is transmitted to the flexible circuit board via the printed circuit, and then transmitted to the display panel via the flexible circuit board.

[0019] Flexible Circuit Board (Flexible Circuit Board) is a kind of flexible and foldable circuit board, which is widely used in electronic devices that require high integration and lightweight design. Compared with traditional rigid circuit board (Rigid PCB), flexible circuit board has higher flexibility and adaptability, which can play an important role in applications with limited space or special shape requirements.

[0020] Flexible circuit board has the following characteristics:

[0021] Flexibility: Flexible circuit board can bend and fold in multiple directions, adapting to complex space requirements and design shapes. This makes them particularly suitable for miniaturization and embedded applications.

[0022] Lightweight: Due to its lightweight design, flexible circuit board can reduce the overall weight of the device, helping to improve portability.

[0023] Durability: Flexible circuit board is usually made of flexible insulating materials such as polyimide, with good temperature resistance, chemical corrosion resistance and wear resistance.

[0024] High integration: Multiple layers of circuit can be integrated into a single flexible substrate, reducing connection lines and interfaces, thereby improving system reliability and stability.

[0025] Designability: Can be used to manufacture circuit boards of various shapes and sizes to meet special design requirements, such as curved, circular or irregular shapes.

[0026] With this system design, the main board uses a printed circuit board (PCBA), while the secondary board uses a flexible printed circuit board (FPC). This not only reduces the area occupied by the main board but also enhances the flexibility of the product. At the same time, this design improves the transmission quality and distance of video signals, meeting the curved design requirements of modern vehicle-mounted displays.

[0027] Furthermore, the printed circuit board also includes a high-speed connector and a video decoding chip.

[0028] The high-speed connector is used to receive the video signal, and the video decoding chip is used to analyze the video signal.

[0029] In vehicle-mounted display systems, the use of high-speed connectors is crucial for ensuring efficient and stable data transmission. Here are the main advantages and functions of high-speed connectors:

[0030] Increase data transmission rate: High-speed connectors can support higher data transmission rates, which is particularly important for modern vehicle-mounted displays with high resolution and high refresh rate requirements. They can effectively handle large bandwidth data streams, ensuring smoothness and clarity of video images.

[0031] Reduce signal interference and loss: High-speed connectors usually use higher quality materials and designs to reduce signal interference and loss, ensuring the stability and accuracy of data transmission. This is particularly important for high-precision image transmission in vehicle-mounted display systems.

[0032] Extend signal transmission distance: This connector can optimize signal transmission characteristics in design, supporting longer distance signal transmission. It can ensure that the signal remains in good quality even in longer connection lines.

[0033] Improve system reliability: High-speed connectors usually have higher durability and anti-interference ability, capable of withstanding high vibration and temperature changes in vehicle-mounted environments, thereby improving the overall reliability and stability of the system.

[0034] Support flexible design: High-speed connectors support various flexible design schemes, such as the connection requirements of different types of vehicle-mounted displays (such as curved screens, separate display screens). This flexibility allows designers to more freely implement innovative display screen designs.

[0035] Video decoding chip is a crucial component in vehicle-mounted display systems, here are some key information about video decoding chip:

[0036] Decoding video data: The main function of a video decoding chip is to decode compressed video data streams (such as H.264, H.265, VP9, etc. encoding formats) into raw video formats that can be displayed. It is responsible for converting encoded data into image frames for display or further processing.

[0037] Improving video playback quality: High-performance video decoding chips can support high-resolution and high-frame-rate video content, ensuring the clarity and smoothness of the video during playback. For example, it can handle 4K or even 8K resolution video streams to meet high-quality display requirements.

[0038] Reducing processing burden: By delegating decoding tasks to a dedicated chip, the burden on the main processor (CPU) can be significantly reduced. This helps optimize the overall performance of the device, allowing the CPU to handle other tasks and improve system responsiveness.

[0039] Supporting multiple encoding formats: Modern video decoding chips usually support multiple video encoding formats and standards, which allows them to handle video data from different sources, providing better compatibility and flexibility.

[0040] Hardware acceleration: Video decoding chips usually use hardware acceleration to improve decoding efficiency and speed, providing higher decoding performance with lower power consumption compared to software decoding.

[0041] Further, the flexible circuit board further comprises a Bridge IC chip for enhancing the video signal.

[0042] Bridge IC (Bridge IC) is a key component in electronic devices used to connect and coordinate different circuit or system parts. In the design of the utility model, the use of Brigde chip can enhance the signal effect, and the parameters for determining the entire video link are divided into the same index to determine the link from the video codec chip to the Bridge chip and the link from the Bridge chip to the Display Driver IC. This can effectively improve the quality of video transmission.

[0043] Further, the first connector comprises a printed circuit board connection end, a first flexible circuit board connection end and a first connection cable, for ensuring the transmission quality of the video signal.

[0044] The input end of the printed circuit board connection end is connected to the printed circuit board, the output end of the printed circuit board connection end is connected to the input end of the first connection cable, the output end of the first connection cable is connected to the input end of the first flexible circuit board connection end, and the output end of the first flexible circuit board connection end is connected to the flexible circuit board.

[0045] Further, the printed circuit board connection end and the first flexible circuit board connection end include: high-speed FPC connectors, FFC connectors, and ultra-thin coaxial connectors.

[0046] The first connection cable includes: high-speed FPC, FFC, and ultra-thin coaxial cable.

[0047] FFC (Flat Flexible Cable) refers to a flat flexible cable, which is a kind of cable with flat structure, usually used to connect the internal circuits of various electronic devices. FFC is characterized by high flexibility, making it easy to lay in limited space.

[0048] The first connector is used to connect the printed circuit board and the flexible circuit board, and the connector and cable connection mode is applied, which can transmit video signals at high speed.

[0049] Ultra-thin coaxial cable (Ultra-Thin Coaxial Cable) is a kind of coaxial cable with ultra-thin diameter, used to transmit high-frequency signals.

[0050] Further, the second connector includes: a second flexible circuit board connection end, a driving IC, and a second connection cable, used to ensure the transmission quality of video signals and control and drive the at least one display panel.

[0051] Among them, the input end of the second flexible circuit board connection end is connected to the flexible circuit board, the output end of the second flexible circuit board connection end is connected to the input end of the second connection cable, the output end of the second connection cable is connected to the input end of the driving IC, and the output end of the driving IC is connected to the display panel.

[0052] Further, the second flexible circuit board connection end includes: high-speed FPC connectors.

[0053] The second connection cable includes: high-speed FPC.

[0054] Further, the video transmission quality includes: S parameter, eye diagram, and TDR impedance diagram.

[0055] S parameter (Scattering Parameter): used to describe the electrical characteristics of radio frequency and microwave components, representing the relationship between input and output signals. It is commonly used to analyze the reflection and transmission characteristics of high-frequency circuits.

[0056] Eye diagram: used to analyze the quality of digital signals, especially in high-speed data transmission systems. It is an image of the superposition of signal waveforms in the time domain, and the opening degree of the eye diagram can be used to evaluate the distortion and jitter of the signal.

[0057] TDR impedance chart (time domain reflectometry): By measuring the reflection of electrical signals along the transmission line, the impedance of the transmission line is plotted as a function of distance. This is used to detect discontinuities and faults on the transmission line.

[0058] Further, the display panel comprises a liquid crystal panel or an OLED panel.

[0059] In a second aspect, the application further provides a circuit protection board, comprising the new vehicle-mounted display system and a circuit substrate, wherein the vehicle-mounted display system is integrated on the circuit substrate.

[0060] In summary, the application provides a new vehicle-mounted display screen system and a circuit protection board, wherein the vehicle-mounted display screen system comprises a printed circuit board, N flexible circuit boards and N display panels; wherein N is an integer greater than or equal to 1; the printed circuit board, the flexible circuit board and the display panel form a display unit; the printed circuit board is connected to the flexible circuit board through a first connector, and the flexible circuit board is connected to the display panel through two second connectors. Multiple video signals are transmitted from the printed circuit board to the flexible circuit board, and then transmitted from the flexible circuit board to the display panel.

[0061] Compared with the prior art, the application has at least the following beneficial effects:

[0062] The new vehicle-mounted display screen system provided by the application uses a printed circuit board as the main board and a flexible circuit board as the auxiliary board, which can reduce the area of the main board, increase the flexibility of the product, improve the transmission quality of the video signal and the transmission distance of the video signal, and meet the current design requirements of the vehicle-mounted display screen. BRIEF DESCRIPTION OF DRAWINGS

[0063] Figure 1 is a schematic diagram of the new vehicle-mounted display screen with a single display unit shown in the embodiments of the application.

[0064] Figure 2 is a schematic diagram of the new vehicle-mounted display screen with two display units shown in the embodiments of the application.

[0065] Figure 3 is a schematic diagram of the new vehicle-mounted display screen shown in the embodiments of the application. DETAILED DESCRIPTION

[0066] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts are within the scope of the present application. Embodiments

[0067] The present application provides a new type of vehicle display screen system, which comprises a printed circuit board, N flexible circuit boards and N display panels.

[0068] Wherein, N is an integer greater than or equal to 1.

[0069] The printed circuit board, the flexible circuit board and the display panel form a display unit.

[0070] The printed circuit board is connected with the flexible circuit board through a first connector, and the flexible circuit board is connected with the display panel through two second connectors.

[0071] The video signal is transmitted to the flexible circuit board via the printed circuit, and then transmitted to the display panel via the flexible circuit board.

[0072] Flexible Circuit Board (Flexible Circuit Board) is a kind of flexible, foldable circuit board, widely used in electronic equipment that needs high integration and light design. Compared with traditional rigid circuit board (Rigid PCB), flexible circuit board has higher flexibility and adaptability, and can play an important role in space-limited or special-shaped applications.

[0073] Flexible circuit board has the following characteristics:

[0074] Flexibility: Flexible circuit board can bend and fold in multiple directions, adapting to complex space requirements and design shapes. This makes them particularly suitable for miniaturization and embedded applications.

[0075] Lightweight: Due to its lightweight design, flexible circuit board can reduce the overall weight of the device, helping to improve portability.

[0076] Durability: Flexible circuit board is usually made of flexible insulating materials such as polyimide, with good temperature resistance, chemical corrosion resistance and wear resistance.

[0077] High integration: Multiple layers of circuit can be integrated into a single flexible substrate, reducing connection lines and interfaces, thereby improving system reliability and stability.

[0078] Designability:

[0079] Circuit boards of various shapes and sizes can be manufactured to meet specific design requirements, such as curved, circular, or irregular shapes.

[0080] With this system design, the main board uses a printed circuit board, while the secondary board uses a flexible circuit board. This not only reduces the occupied area of the main board but also enhances the flexibility of the product. At the same time, this design improves the transmission quality and distance of video signals, meeting the curved design requirements of modern vehicle-mounted display screens.

[0081] In the embodiments of the present application, optionally, the flexible circuit board is mainly composed of the following materials:

[0082] Substrate: usually polyimide (PI) or polyester (PET), providing flexibility and heat resistance.

[0083] Conductive layer: generally uses copper foil, deposited on the substrate through chemical or electroplating process.

[0084] Insulating layer: used for electrical isolation, usually a layer of polyimide or epoxy resin.

[0085] Protective layer: such as wear-resistant polyimide film, to prevent mechanical damage and environmental factors.

[0086] The combination of these materials makes the flexible circuit board not only maintain electrical performance, but also have good bending and durability.

[0087] In the embodiments of the present application, optionally, the printed circuit board further comprises a high-speed connector and a video decoding chip.

[0088] The high-speed connector is used to receive the video signal, and the video decoding chip is used to analyze the video signal.

[0089] In vehicle-mounted display systems, the use of high-speed connectors is crucial to ensure efficient and stable data transmission. Here are the main advantages and functions of high-speed connectors:

[0090] Increase data transmission rate: high-speed connectors can support higher data transmission rates, which is particularly important for modern vehicle-mounted display screens with high resolution and high refresh rate requirements. They can effectively handle large bandwidth data streams, ensuring smoothness and clarity of video images.

[0091] Reduce signal interference and loss: high-speed connectors usually use higher quality materials and designs to reduce signal interference and loss, ensuring the stability and accuracy of data transmission. This is particularly important for high-precision image transmission in vehicle-mounted display screen systems.

[0092] Extended Signal Transmission Distance: These connectors are designed to optimize signal transmission characteristics, supporting longer distances of signal transmission. They ensure that the signal maintains good quality even over longer connection lines.

[0093] Improved System Reliability: High-speed connectors generally have higher durability and anti-interference capabilities, capable of withstanding high vibrations and temperature changes in vehicle environments, thus improving the overall reliability and stability of the system.

[0094] Support for Flexible Design: High-speed connectors support various flexible design schemes, such as the connection needs of different types of vehicle display screens (such as curved screens and split screens). This flexibility allows designers to more freely implement innovative display screen designs.

[0095] High-speed connectors are used to make reliable connections between devices that require high-speed data transmission. These connectors are designed to reduce signal loss, suppress interference, and ensure high bandwidth and high data rate transmission. Here are some common types of high-speed connectors:

[0096] 1. USB Type-C: Supports high-speed data transmission (such as USB 3.1 / 3.2), charging, and video transmission.

[0097] 2. HDMI: Supports high-definition video and audio transmission, with different versions supporting different bandwidths (such as HDMI 2.1 supporting higher data rates).

[0098] 3. Thunderbolt: Supports very high data transmission rates (such as Thunderbolt 3 and Thunderbolt 4 up to 40Gbps), while supporting data, video, and power transmission.

[0099] 4. DisplayPort: Supports high-resolution video and audio transmission, suitable for high-bandwidth display devices.

[0100] 5. SAS (Serial Attached SCSI): Used for enterprise-level storage devices, supporting high-speed data transmission and high reliability.

[0101] 6. PCIe (Peripheral Component Interconnect Express): Used for high-speed data transmission within computers, supporting high-bandwidth expansion cards (such as graphics cards and network cards).

[0102] 7. M.2: Used for high-bandwidth devices such as solid-state drives (SSDs) and wireless modules.

[0103] In the embodiment of the utility model, optionally, the high-speed connector can be any of the above-mentioned devices.

[0104] Video decoding chips are crucial components in vehicle display systems, primarily responsible for decoding compressed video streams (such as H.264, H.265, VP9, etc.) into displayable raw video formats. They convert encoded data into image frames for display or further processing.

[0105] High-performance video decoding chips can support high-resolution and high-frame-rate video content, ensuring video clarity and smoothness during playback. For example, they can handle 4K or even 8K resolution video streams, meeting high-quality display requirements.

[0106] By delegating decoding tasks to dedicated chips, the burden on the main processor (CPU) can be significantly reduced. This helps optimize the overall performance of the device, allowing the CPU to handle other tasks and improve system responsiveness.

[0107] Modern video decoding chips typically support multiple video encoding formats and standards, enabling them to handle video data from various sources and offering good compatibility and flexibility.

[0108] Video decoding chips usually use hardware acceleration to improve decoding efficiency and speed, providing higher decoding performance at lower power consumption compared to software decoding.

[0109] In the embodiment of the utility model, optionally, the video decoding chip can be any of the following devices:

[0110] Hardware decoders: NVIDIA NVDEC, Intel Quick Sync Video, AMD UVD;

[0111] Designed specifically for handling specific video encoding and decoding formats, they efficiently decode high-definition videos such as H.264, H.265 / HEVC, VP9, etc.

[0112] SoC (System on Chip) with integrated decoding capabilities: Qualcomm Snapdragon series, Apple A series chips, MediaTek series chips;

[0113] These chips not only include video decoding functions but also integrate other functions such as CPU, GPU, baseband, etc.

[0114] Embedded decoders (embedded processors): Broadcom VideoCore, Ambarella CV22;

[0115] For embedded systems, usually support specific video encoding formats and resolutions.

[0116] Special decoding chips (specific application scenarios): Hantro G1 / G2, Altera FPGA (with video decoding module);

[0117] Designed for specific applications, providing high-performance decoding processing capabilities.

[0118] Open-source decoding chips: Raspberry Pi (decoded through software);

[0119] Video decoding can be done through open-source software (such as FFmpeg), providing flexible decoding solutions.

[0120] In the embodiments of the present application, the flexible circuit board further comprises: a Bridge IC chip for enhancing the video signal.

[0121] Bridge IC (Bridge IC) is a key component in electronic devices for connecting and coordinating different circuit or system parts. In the design of the present application, the use of Brigde chip can enhance the signal effect, and the parameters for determining the entire video link are divided into the same index to determine the link from the video codec chip to the Bridge chip and the link from the Bridge chip to the Display Driver IC. This can effectively improve the quality of video transmission.

[0122] In the embodiments of the present application, the Bridge IC is composed of the following main parts:

[0123] Interface controller: responsible for handling communication protocols with different interfaces or buses. It receives and sends data according to the requirements of different interfaces.

[0124] Conversion logic: performs signal conversion and data format conversion to ensure that data between different interfaces can be correctly transmitted and understood.

[0125] Buffer: used to temporarily store data, handle speed differences in data flow, and avoid data loss.

[0126] Clock generation and management: coordinates the timing of data transmission between different interfaces to ensure data synchronization.

[0127] In the embodiments of the present application, the first connector includes: a printed circuit board connection end, a first flexible circuit board connection end, and a first connection cable, for ensuring the transmission quality of the video signal.

[0128] The input end of the printed circuit board connecting end is connected with the printed circuit board, the output end of the printed circuit board connecting end is connected with the input end of the first connecting flat cable, the output end of the first connecting flat cable is connected with the input end of the first flexible circuit board connecting end, and the output end of the first flexible circuit board connecting end is connected with the flexible circuit board.

[0129] In the embodiment of the utility model, optionally, the printed circuit board connecting end and the first flexible circuit board connecting end include: high-speed FPC connector, FFC connector and ultra-thin coaxial connector.

[0130] The first connecting flat cable includes: high-speed FPC, FFC and ultra-thin coaxial cable.

[0131] FFC (Flat Flexible Cable) refers to a flat flexible cable, which is a kind of cable with flat structure, usually used to connect the internal circuit of various electronic equipment. The characteristics of FFC are high flexibility, convenient for wiring in limited space. It is often used to connect display screen, hard disk drive, keyboard and other equipment, which has the following characteristics:

[0132] Flat structure: make the cable more compact when wiring, reduce the occupied space.

[0133] Flexible: can be bent and folded, suitable for various installation requirements.

[0134] Light: compared with traditional round cable, FFC is lighter, suitable for weight reduction application scenarios.

[0135] High-density connection: support high-density pin layout, suitable for multi-pin connection requirements.

[0136] The first connector is used for connecting the printed circuit board and the flexible circuit board, and the connector and flat cable mode are applied, and the video signal can be transmitted at high speed through the mode.

[0137] Ultra-thin coaxial cable (Ultra-Thin Coaxial Cable) is a kind of coaxial cable with ultra-thin diameter, used for transmitting high-frequency signals. It is usually composed of inner conductor, insulation layer, outer conductor (shield layer) and outer sheath, and is designed to provide high-performance signal transmission while maintaining small size, which has the following characteristics:

[0138] Ultra-thin design: thinner than traditional coaxial cable, suitable for space-limited application scenarios.

[0139] High-frequency transmission: can effectively transmit high-frequency signals, suitable for high-bandwidth devices.

[0140] Good shielding: high shielding effectiveness, reduces signal interference.

[0141] Flexibility: provides certain bending ability, facilitates wiring.

[0142] In the embodiment of the utility model, optionally, the second connector includes: second flexible circuit board connecting end, drive IC and second connection flat cable, be used for guaranteeing the transmission quality of video signal and control and drive the at least one display panel.

[0143] Among them, the input end of the second flexible circuit board connecting end is connected with the flexible circuit board, the output end of the second flexible circuit board connecting end is connected with the input end of the second connection flat cable, the output end of the second connection flat cable is connected with the input end of the drive IC, and the output end of the drive IC is connected with the display panel.

[0144] In the embodiment of the utility model, optionally, the second flexible circuit board connecting end includes: high-speed FPC connector.

[0145] The second connection flat cable includes: high-speed FPC.

[0146] In the embodiment of the utility model, optionally, as shown in the accompanying Figure 1 Fig. 2 is a schematic diagram of a novel vehicle-mounted display screen with a single display unit, and as can be seen from the figure, the transmission process of the video signal is: video signal→high-speed connector→video decoding chip→FFC / FPC / ultra-thin coaxial high-speed connector→high-speed FPC / FFC / ultra-thin coaxial→FPC / FFC / ultra-thin coaxial connector→Bridge IC→FPC high-speed connector→high-speed FPC→Display Driver IC.

[0147] In the embodiment of the utility model, optionally, as shown in the accompanying Figure 2 Fig. 2 is a schematic diagram of a novel vehicle-mounted display screen with a single display unit, and as can be seen from the figure, the transmission process of the video signal is: video signal→high-speed connector→video decoding chip→FFC / FPC / ultra-thin coaxial high-speed connector→high-speed FPC / FFC / ultra-thin coaxial→FPC / FFC / ultra-thin coaxial connector→Bridge IC→FPC high-speed connector→high-speed FPC→Display Driver IC.

[0148] In the embodiment of the utility model, only the novel vehicle-mounted display screen with a single display unit and the novel vehicle-mounted display screen with two display units are listed, and in other embodiments, the compatible scheme under multiple screens can also be promoted.

[0149] In the embodiment of the utility model, optionally, as shown in the accompanying Figure 3As shown, it is a new vehicle display screen estimated physical schematic diagram, it can be seen that through this method design obviously reduces the area of vehicle display screen system.

[0150] In the embodiment of the utility model, optionally, the video transmission quality includes: S parameter, eye diagram and TDR impedance diagram.

[0151] In the embodiment of the utility model, optionally,

[0152] S parameter (scattering parameter): used to describe the electrical characteristics of radio frequency and microwave components, indicating the relationship between input signal and output signal. It is commonly used to analyze the reflection and transmission characteristics of high frequency circuits.

[0153] Eye diagram: used to analyze the quality of digital signals, especially in high-speed data transmission systems. It is an image of signal waveform overlapping in time domain, and the opening degree of eye diagram can be observed to evaluate the distortion and jitter of signal.

[0154] TDR impedance diagram (time domain reflectometer): by measuring the reflection of electrical signals along the transmission line, the impedance of the transmission line is plotted as a function of distance. This is used to detect discontinuities and faults on the transmission line.

[0155] In the embodiment of the utility model, optionally, the display panel includes: liquid crystal panel or OLED panel. Embodiment

[0156] The application also proposes a circuit protection board, which comprises the new vehicle display system and a circuit substrate, and the vehicle display system is integrated on the circuit substrate.

[0157] In summary, the application proposes a new vehicle display screen system and a circuit protection board, which comprises a printed circuit board, N flexible circuit boards and N display panels; wherein N is an integer greater than or equal to 1; the printed circuit board, the flexible circuit board and the display panel form a display unit; the printed circuit board is connected with the flexible circuit board through a first connector, and the flexible circuit board is connected with the display panel through two second connectors. Multiple video signals are transmitted from the printed circuit to the flexible circuit board, and then transmitted to the display panel through the flexible circuit board.

[0158] The new vehicle display screen system proposed in the application uses a printed circuit board as the main board and a flexible circuit board as the auxiliary board, which can reduce the area of the main board, increase the flexibility of the product, improve the transmission quality of the video signal and the transmission distance of the video signal, and meet the current design requirements of the vehicle display screen.

[0159] In several embodiments provided in the present application, it can be understood that each block in the flowchart or block diagram can represent a module, a segment or a portion of code which contains one or more executable instructions for implementing the specified logic function. It should also be noted that in some alternative implementations, the functions noted in the blocks can occur in a different order from that shown in the figure. For example, two consecutive blocks can actually be executed substantially in parallel, and they can also be executed in reverse order, depending on the functions involved.

[0160] The functions, if implemented in the form of software function modules and sold or used as independent products, can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application can essentially or say the parts of the prior art or the parts of the technical solutions can be embodied in the form of a software product, which is stored in a storage medium and includes a number of instructions for causing an electronic device to execute all or part of the steps of the methods described in the embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk and various program code storage media.

[0161] In summary, the present application provides a new type of vehicle display screen system and circuit protection plate, the vehicle display screen system includes a printed circuit board, N flexible circuit board and N display panel;Wherein, N is greater than or equal to 1 integer;The printed circuit board, the flexible circuit board and the display panel constitute a display unit;The printed circuit board is connected with the flexible circuit board through the first connector, and the flexible circuit board is connected with the display panel through two second connectors. Multiple video signals are transmitted from the printed circuit to the flexible circuit board, and then transmitted to the display panel via the flexible circuit board.

[0162] The new type of vehicle display screen system provided in the present application, the main board adopts the printed circuit board, the vice board adopts the soft circuit board, which can reduce the area of the main board, increase the flexibility of the product, improve the transmission quality of the video signal and the transmission distance of the video signal, and meet the current design requirements of the vehicle display screen.

[0163] The above-described specific embodiments, purposes, technical solutions and beneficial effects of the present application are further described in detail, and it should be understood that the above-described is only a specific embodiment of the present application and is not used to limit the protection scope of the present application. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A new type of vehicle display screen system, characterized in that, The vehicle-mounted display screen system comprises a printed circuit board, N flexible circuit boards and N display panels; The flexible circuit boards and the display panels form a display unit, and the vehicle-mounted display screen system comprises at least one display unit; The printed circuit board is connected with the flexible circuit board through a first connector, and the flexible circuit board is connected with the display panel through a second connector; The video signal is transmitted to the flexible circuit board through the printed circuit board and then transmitted to the display panel through the flexible circuit board; The flexible circuit board further comprises a bridge integrated circuit, an input end of the bridge integrated circuit being connected with the first connector, and an output end of the bridge integrated circuit being connected with the second connector; wherein N is an integer greater than or equal to 1.

2. The in-vehicle display screen system of claim 1, wherein, The printed circuit board further comprises a high-speed connector and a video decoding chip; An input end of the high-speed connector receives the video signal, and an output end of the high-speed connector is connected with an input end of the video decoding chip; An output end of the video decoding chip is connected with the first connector.

3. The in-vehicle display screen system of claim 2, wherein, The first connector comprises a printed circuit board connecting end, a first flexible circuit board connecting end and a first connecting flat cable.

4. The in-vehicle display screen system of claim 3, wherein, The printed circuit board connecting end is located in the printed circuit board, an input end of the printed circuit board connecting end being connected with an output end of the video decoding chip, and an output end of the printed circuit board connecting end being connected with an input end of the first connecting flat cable; The first flexible circuit board connecting end is located in the flexible circuit board, an output end of the first connecting flat cable being connected with an input end of the first flexible circuit board connecting end, and an output end of the first flexible circuit board connecting end being connected with an input end of the bridge integrated circuit.

5. The in-vehicle display screen system of claim 4, wherein, The printed circuit board connecting end and the first flexible circuit board connecting end comprise a high-speed FPC connector, an FFC connector and an ultra-fine coaxial connector; The first connecting flat cable comprises a high-speed FPC, an FFC and an ultra-fine coaxial cable.

6. The in-vehicle display screen system of claim 2, wherein, The second connector comprises a second flexible circuit board connecting end, a driving IC and a second connecting flat cable, for ensuring the transmission quality of the video signal and controlling and driving the at least one display panel.

7. The in-vehicle display screen system of claim 6, wherein, The second flexible circuit board connecting end is located in the flexible circuit board, an input end of the second flexible circuit board connecting end being connected with an output end of the bridge integrated circuit, an output end of the second flexible circuit board connecting end being connected with an input end of the second connecting flat cable, an output end of the second connecting flat cable being connected with an input end of the driving IC, and an output end of the driving IC being connected with the display panel.

8. The in-vehicle display screen system of claim 7, wherein, The second flexible circuit board connecting end comprises a high-speed FPC connector; The second connecting flat cable comprises a high-speed FPC.

9. The in-vehicle display screen system of claim 1, wherein, The display panel comprises a liquid crystal panel or an OLED panel.

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