Cockpit display system, intelligent cockpit, and vehicle

Abstract

This application provides a cockpit display system, a smart cockpit, and a vehicle. The cockpit display system includes: an in-vehicle infotainment controller (IVH controller) for generating a first display signal, which is a display signal based on the DP / eDP protocol; and a cockpit display electrically connected to the IVH controller. The cockpit display is equipped with a protocol conversion bridge chip and a display driver chip. The protocol conversion bridge chip receives the first display signal and converts it into a second display signal, which is a converted signal based on the LVDS protocol. The protocol conversion bridge chip also transmits the second display signal to the display driver chip for external display. This application can reduce the cost of external display in the cockpit display system.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a cockpit display system, a smart cockpit, and a vehicle. Prior Technology

[0002] With the rapid development of smart cockpit technology, vehicle interiors are gradually shifting towards digitalization and intelligence, making multi-screen connectivity, voice recognition, haptic feedback, and integrated vehicle control the mainstream for automotive displays. While smart cockpits are becoming increasingly multifunctional, they also bring many new challenges in hardware design and cost control.

[0003] Currently, in the process of displaying external information on in-vehicle cockpit displays, SerDes (Serializer / Deserializer) chips are typically used to transmit audio and video signals. During data transmission, the SerDes chip mainly involves the transmitting end converting multi-bit parallel audio and video signals into serial data, processing it through an encoder, drive circuit, and equalizer before sending it out. The receiving end then uses an equalizer, decoder, and receiving circuit to restore the serial data back to the original parallel data, thus achieving data transmission.

[0004] However, SerDes chips are expensive, and when SerDes chips are used in cockpit displays for audio and video signal transmission, there may be problems such as high risk of chip supply instability, excessive time cost, and complex design. Summary of the Invention

[0005] In view of this, this application proposes a cockpit display system, a smart cockpit, and a vehicle to solve the problems that may arise from using SerDes chips for data transmission, such as high chip supply stability risks, high time costs, and complex design.

[0006] In a first aspect, one embodiment of this application provides a cockpit display system, comprising: an in-vehicle infotainment controller, the in-vehicle infotainment controller being used to generate a first display signal, the first display signal being a display signal based on the DP / eDP protocol; a cockpit display, the cockpit display being electrically connected to the in-vehicle infotainment controller, the cockpit display being equipped with a protocol conversion bridge chip, the protocol conversion bridge chip being used to receive the first display signal and convert the first display signal into a second display signal, the second display signal being a converted signal based on the LVDS protocol; the cockpit display is also used to display externally based on the second display signal.

[0007] Compared with related technologies, the embodiments of this application have at least the following advantages: When transmitting audio and video signals between the cockpit display and the in-vehicle infotainment controller, this application sets up a protocol conversion bridge chip in the cockpit display. This allows the first display signal output by the intelligent control chip to be converted into a second display signal simply by using the protocol conversion bridge chip, so that the display driver chip can display it externally. Therefore, it avoids the problems of design complexity, chip supply stability risks, and high time costs associated with using SerDes chips.

[0008] In one embodiment, the first display signal includes a DP protocol signal and / or an eDP protocol signal; the in-vehicle infotainment controller includes an intelligent control chip, the cockpit display includes a timing control circuit board and a display driver chip, the protocol conversion bridge chip is disposed within the timing control circuit board, the intelligent control chip is communicatively connected to the protocol conversion bridge chip, the protocol conversion bridge chip is communicatively connected to the display driver chip, the intelligent control chip is provided with a first DP interface, the protocol conversion bridge chip is provided with a second DP interface and a first LVDS interface, and the intelligent control chip transmits the DP protocol signal to the protocol conversion bridge chip through the first DP interface and the second DP interface; The display driver chip is provided with a second LVDS interface. After the protocol conversion bridge chip converts the DP protocol signal into a second display signal, it transmits the signal to the display driver chip through the first LVDS interface and the second LVDS interface. The intelligent control chip is also provided with a first eDP interface. The protocol conversion bridge chip is provided with a second eDP interface. The intelligent control chip transmits the eDP protocol signal to the protocol conversion bridge chip through the first eDP interface and the second eDP interface. After the protocol conversion bridge chip converts the eDP protocol signal into a second display signal, it transmits the signal to the display driver chip through the first LVDS interface and the second LVDS interface.

[0009] In one embodiment, the in-vehicle infotainment controller further includes a Re-timer chip, which is communicatively connected to the intelligent control chip and the protocol conversion bridge chip. The Re-timer chip performs equalization optimization processing on the first display signal output by the intelligent control chip and transmits the processed first display signal to the protocol conversion bridge chip.

[0010] In one embodiment, there is a main channel between the smart control chip and the protocol conversion bridge chip, through which the smart control chip transmits the audio-visual information in the first display signal to the protocol conversion bridge chip.

[0011] In one embodiment, an auxiliary channel is further provided between the intelligent control chip and the protocol conversion bridge chip. The intelligent control chip transmits the control information and transmission setting parameters in the first display signal to the protocol conversion bridge chip through the auxiliary channel, or the protocol conversion bridge chip transmits the control information and transmission setting parameters in the first display signal back to the intelligent control chip through the auxiliary channel.

[0012] In one embodiment, the second display signal includes an LVDS protocol signal; the cockpit display further includes a cockpit display screen, the display driver chip is disposed within the cockpit display screen, and the protocol conversion bridge chip includes a protocol receiving module, a computing control module, an image processing module, and an LVDS transmission module. The image processing module is communicatively connected to the protocol receiving module, the LVDS transmission module, and the computing control module. The protocol receiving module transmits the first display signal received from the intelligent control chip to the image processing module. The image processing module converts the first display signal into the LVDS protocol signal and then transmits the converted LVDS protocol signal to the LVDS transmission module. The LVDS transmission module transmits the converted LVDS protocol signal to the cockpit display screen via the display driver chip.

[0013] In one embodiment, the protocol conversion bridging chip further includes an active synchronization filtering module. The active synchronization filtering module is communicatively connected to the protocol receiving module and the image processing module. The computing control module is communicatively connected to the active synchronization filtering module. The protocol receiving module transmits the first display signal received from the intelligent control chip to the active synchronization filtering module. After correcting the first display signal, the active synchronization filtering module transmits the processed first display signal to the image processing module.

[0014] In one embodiment, the protocol conversion bridging chip further includes an internal register module, which is communicatively connected to the computing control module. The computing control module detects the first display signal and the second display signal output by the active synchronization filtering module and the image processing module, performs diagnostic analysis on the first display signal and the second display signal, and sends the diagnostic results to the internal register module for triggering. The internal register module then transmits the diagnostic results to the intelligent control chip.

[0015] Secondly, one embodiment of this application provides an intelligent cockpit, wherein the intelligent cockpit includes the cockpit display system described above.

[0016] In one embodiment of this application, a vehicle is provided, wherein the vehicle includes the intelligent cockpit described above.

[0017] This cockpit display system eliminates the need for encoders and decoders within the SerDes chip to serialize and deserialize the audio-visual signals to be displayed, instead sending the processed signals directly to the display driver chip for external display. Therefore, this cockpit display system reduces system design complexity and avoids problems such as high supply stability risks and high time costs.

[0018] On the other hand, a Re-timer chip can be placed between the intelligent control chip and the protocol conversion bridge chip. This allows the Re-timer chip to perform equalization and optimization processing on the DP / eDP protocol signal, and then transmit the optimized DP / eDP protocol signal to the protocol conversion bridge chip. This improves signal fidelity and integrity.

[0019] On the other hand, an active synchronization filtering module is set in the protocol conversion bridge chip to perform equalization and repair processing on the DP / eDP protocol signal again, so as to filter out high-frequency noise, distortion or jitter signals in the signal caused during transmission, and avoid erroneous synchronization signals from interfering with the output and requirements of the terminal display signal.

[0020] On the other hand, an internal register module is set up in the protocol conversion bridging chip. Based on automotive safety standards, it performs safety diagnostics while the vehicle is running and transmits the diagnostic anomalies to the intelligent control chip. This allows the intelligent control chip to remind the vehicle occupants to stop the vehicle for inspection or send it to a repair shop in a timely manner. As a result, the driving experience for the vehicle occupants is improved. Simple Explanation of the Diagram

[0021] Figure 1 is a structural schematic diagram of a cockpit display system according to an embodiment of this application.

[0022] Figure 2 is a schematic diagram of another structure of the cockpit display system according to one embodiment of this application.

[0023] Figure 3 is a schematic diagram of the interaction between the protocol conversion bridge chip in Figure 1 and the in-vehicle infotainment controller and display driver chip. Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them.

[0025] It should be noted that, in the embodiments of this application, "at least one" refers to one or more, and "more than one" refers to two or more. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0026] It should be noted that in the embodiments of this application, the terms "first," "second," etc., are used only for descriptive purposes and should not be construed as indicating or implying relative importance, nor as indicating or implying order. Features specified as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0027] Figure 1 shows a schematic diagram of an embodiment of the cockpit display system of this application. The cockpit display system is applied to a vehicle. Specifically, it can be installed within the vehicle's electronic equipment. The vehicle can be a gasoline-powered vehicle, a new energy vehicle, etc. This application does not limit the specific type of vehicle.

[0028] The cockpit display system includes a cockpit display and an in-vehicle infotainment controller, with the cockpit display electrically connected to the in-vehicle infotainment controller. The cockpit display is a screen. In this embodiment, the cockpit display can be a central control display, instrument panel display, passenger-side display, seat display, etc. The cockpit display system may include one or more cockpit displays. The cockpit display and the in-vehicle infotainment controller are connected via a vehicle wiring harness. The in-vehicle infotainment controller is a comprehensive in-vehicle information processing system formed by using a dedicated in-vehicle central processing unit, based on the vehicle bus system and internet services. Specifically, the in-vehicle infotainment controller transmits audio and video signals that need to be displayed externally to the cockpit display, which then displays them externally. This improves the driving experience for vehicle occupants.

[0029] In some embodiments, the in-vehicle infotainment controller generates a first display signal, which is a display signal based on the DP / eDP protocol. In this embodiment, the first display signal includes a DP (DisplayPort) protocol signal and / or an eDP (Embedded DisplayPort) protocol signal. The cockpit display is equipped with a protocol conversion bridge chip, which receives the first display signal and converts it into a second display signal, which is a converted signal based on the LVDS protocol. In this embodiment, the second display signal includes an LVDS protocol signal. The cockpit display is also used for external display based on the second display signal.

[0030] Compared to existing technologies, this cockpit display system can still perform protocol conversion even without utilizing the encoder and decoder within the SerDes chip for serialization and deserialization of audio and video signals. The processed audio and video signals are then transmitted to the cockpit display for external display. Therefore, this cockpit display system reduces system design complexity and avoids the design complexity and chip supply stability risks associated with using SerDes chips.

[0031] Specifically, referring to Figure 2, the in-vehicle infotainment controller includes an intelligent control chip. The cockpit display includes a timing control circuit board and a display driver chip. A protocol conversion bridge chip is located within the timing control circuit board. The intelligent control chip communicates with the protocol conversion bridge chip, and the protocol conversion bridge chip communicates with the display driver chip. The intelligent control chip has a first DP interface D1, and the protocol conversion bridge chip has a second DP interface D2 and a first LVDS interface L1. The intelligent control chip transmits DP protocol signals to the protocol conversion bridge chip through the first DP interface D1 and the second DP interface D2. The display driver chip has a second LVDS interface L2. After the protocol conversion bridge chip converts the DP protocol signal into an LVDS protocol signal, it transmits it to the display driver chip through the first LVDS interface L1 and the second LVDS interface L2.

[0032] In this embodiment, the intelligent control chip can be a System on Chip (SOC) chip. In other embodiments, the intelligent control chip can also be a chip other than a SOC chip. The intelligent control chip may have one or more first DP interfaces D1. When the cockpit display system includes multiple cockpit displays, the intelligent control chip may have multiple first DP interfaces D1 to transmit different information to the multiple cockpit displays for display. Each first DP interface D1 is connected to a different cockpit display.

[0033] When the cockpit display system needs to transmit audio and video signals to the cockpit display for external display, based on electronic imaging standard protocols (e.g., DP protocol), the intelligent control chip first processes the audio and video signals into DP protocol signals. These DP protocol signals are then transmitted to the protocol conversion bridge chip via the vehicle wiring harness. The protocol conversion bridge chip then converts the DP protocol signals into LVDS protocol signals, which are transmitted to the display driver chip via the first LVDS interface L1 and the second LVDS interface L2. Finally, the display driver chip processes the LVDS protocol signals for external display.

[0034] In some embodiments, the intelligent control chip further includes a first eDP interface E1, and the protocol conversion bridge chip includes a second eDP interface E2. The intelligent control chip transmits eDP protocol signals to the protocol conversion bridge chip through the first eDP interface E1 and the second eDP interface E2. After the protocol conversion bridge chip converts the eDP protocol signals into LVDS protocol signals, it transmits them to the display driver chip through the first LVDS interface L1 and the second LVDS interface L2.

[0035] When the cockpit display system uses the eDP protocol for signal transmission, the intelligent control chip needs a first eDP interface E1, and the protocol conversion bridge chip needs a second eDP interface E2. First, the intelligent control chip processes the audio / video signal into an eDP protocol signal. This eDP protocol signal is then transmitted to the protocol conversion bridge chip via the vehicle wiring harness. Next, the protocol conversion bridge chip converts the eDP protocol signal into an LVDS protocol signal and transmits it to the display driver chip via the first LVDS interface L1 and the second LVDS interface L2. Finally, the display driver chip processes the LVDS protocol signal for external display.

[0036] It is worth noting that the intelligent control chip may have both a first DP interface D1 and a first eDP interface E1, or it may have only a first DP interface D1, or only a first eDP interface E1. Similarly, the number of first eDP interfaces E1 may be one or more.

[0037] In some embodiments, referring again to Figure 2, the in-vehicle infotainment controller further includes a Re-timer chip, which is communicatively connected to the intelligent control chip and the protocol conversion bridge chip. After the Re-timer chip performs equalization optimization processing on the DP protocol signal output by the intelligent control chip, it transmits the processed DP protocol signal to the protocol conversion bridge chip.

[0038] For applications requiring long-distance transmission and high-resolution signal quality, a re-timer chip can be installed within the in-vehicle infotainment controller. The re-timer chip can equalize the transmitted signal and optimize data frequency signals with deterministic and random jitter, outputting a clean and complete signal for the protocol conversion bridge chip. This helps improve the stability and integrity of the system.

[0039] It should be noted that the Re-time chip can be configured or not depending on the actual application requirements. For example, if long-distance transmission is not required or the resolution of the signal quality is low, the Re-time chip may not be configured in the in-vehicle infotainment controller.

[0040] In other embodiments, when the smart control chip outputs an eDP protocol signal, the Re-timer chip performs equalization optimization on the eDP protocol signal and then transmits the processed eDP protocol signal to the protocol conversion bridge chip.

[0041] In some embodiments, referring again to Figure 3, there is a main channel between the intelligent control chip and the protocol conversion bridge chip. The intelligent control chip transmits audio and video information from the DP protocol signal and / or eDP protocol signal to the protocol conversion bridge chip through the main channel. The audio and video information can be video, audio, etc.

[0042] In some embodiments, an auxiliary channel is also provided between the intelligent control chip and the protocol conversion bridge chip. The intelligent control chip transmits control information and transmission setting parameters from the DP protocol signal and / or eDP protocol signal to the protocol conversion bridge chip through the auxiliary channel, or the protocol conversion bridge chip transmits control information and transmission setting parameters from the DP protocol signal and / or eDP protocol signal back to the intelligent control chip through the auxiliary channel. For example, before formally transmitting audio and video information, in order to optimize the stable signal requirements for external display, the registers of the in-vehicle infotainment controller and the protocol conversion bridge chip can be read and written through the auxiliary channel to adjust and test bidirectional differential voltage compensation, frequency, and number of channels used, etc.

[0043] By setting up a main channel and an auxiliary channel between the intelligent control chip and the protocol conversion bridge chip, the transmission of audio and video signals is facilitated for subsequent external display. At the same time, control information can also be transmitted to control the content displayed externally.

[0044] In other embodiments, when the cockpit display system is equipped with a Re-time chip, a main channel and an auxiliary channel are provided between the Re-time chip and the protocol conversion bridge chip.

[0045] In some embodiments, the cockpit display further includes a cockpit display screen, with the display driver chip housed within the cockpit display screen. In this embodiment, the cockpit display screen is an external display screen. Specifically, referring again to Figure 3, the protocol conversion bridge chip includes a protocol receiving module, a computing control module, an image processing module, and an LVDS transmission module. The image processing module communicates with the protocol receiving module, the LVDS transmission module, and the computing control module. The protocol receiving module transmits the DP protocol signal received from the intelligent control chip to the image processing module. The image processing module converts the DP protocol signal into an LVDS protocol signal and then transmits the converted LVDS protocol signal to the LVDS transmission module. The LVDS transmission module transmits the converted LVDS protocol signal to the cockpit display screen via the display driver chip.

[0046] By using the protocol receiving module, computing control module, image processing module, and LVDS transmission module in the protocol conversion bridging chip, the DP protocol signal output by the intelligent control chip can be received and its format converted. The resulting LVDS protocol signal is then transmitted to the external display screen via the display driver chip for external display.

[0047] In other embodiments, the protocol receiving module can also transmit the received eDP protocol signal output by the smart control chip to the image processing module. After the image processing module converts the eDP protocol signal into an LVDS protocol signal, it transmits the converted LVDS protocol signal to the LVDS transmission module. The LVDS transmission module then transmits the converted LVDS protocol signal to the cockpit display screen via the display driver chip.

[0048] In some embodiments, the protocol conversion bridging chip further includes an active synchronization filtering module, which is communicatively connected to the protocol receiving module and the image processing module. The computing control module is communicatively connected to the active synchronization filtering module. The protocol receiving module transmits the DP protocol signal received from the intelligent control chip to the active synchronization filtering module. After correcting the DP protocol signal, the active synchronization filtering module transmits the processed DP protocol signal to the image processing module.

[0049] In this embodiment, the active synchronization filtering module is mainly used in environments where the input signal source may be interfered with or the synchronization signal strength is unstable (e.g., long-distance transmission). The active synchronization filtering module can process the input signal to filter high-frequency noise, distortion or jitter signals, and adjust and correct the phase and pulse width of the synchronization signal in a timely manner to avoid erroneous synchronization signals interfering with the output requirements of the terminal display signal.

[0050] In other embodiments, the protocol receiving module transmits the received eDP protocol signal output by the smart control chip to the active synchronization filtering module. After the active synchronization filtering module corrects the eDP protocol signal, it transmits the processed eDP protocol signal to the image processing module.

[0051] In some embodiments, the protocol conversion bridge chip further includes an internal register module, which is communicatively connected to the computing control module. The computing control module detects the first display signal and the second display signal output by the active synchronization filtering module and the image processing module, performs diagnostic analysis on the first display signal and the second display signal, sends the diagnostic results to the internal register module for triggering, and the internal register module transmits the diagnostic results to the intelligent control chip.

[0052] In this embodiment, the internal register module is primarily based on vehicle functional safety requirements and automotive safety standards (e.g., ISO 26262). During vehicle operation, it must meet the diagnostic mechanisms and error reporting requirements for automotive functional safety. The computational control module notifies the internal register module of key parameters (e.g., detecting synchronization signals, backlight failure on the external display screen, and no screen display). When an anomaly is detected, a failure mode is generated. The computational control module then transmits the diagnostic results to the intelligent control chip via the safety-standard-compliant register module. Upon receiving the anomaly result, the intelligent control chip alerts the vehicle occupants, allowing them to stop the vehicle for inspection or have it sent to a repair shop.

[0053] Compared to existing technologies, this cockpit display system eliminates the need for encoders and decoders within the SerDes chip to serialize and deserialize the audio-visual signals to be displayed before sending the processed signals to the display driver chip for external display. This reduces system design complexity and avoids issues such as high chip supply stability risks and excessive time costs.

[0054] On the other hand, a Re-timer chip can be placed between the intelligent control chip and the protocol conversion bridge chip. This allows the Re-timer chip to perform equalization and optimization processing on the DP / eDP protocol signal, and then transmit the optimized DP / eDP protocol signal to the protocol conversion bridge chip. This improves signal fidelity and integrity.

[0055] On the other hand, an active synchronization filtering module is set in the protocol conversion bridge chip to perform equalization and repair processing on the DP / eDP protocol signal again, so as to filter out high-frequency noise, distortion or jitter signals in the signal caused during transmission, and avoid erroneous synchronization signals from interfering with the output and requirements of the terminal display signal.

[0056] On the other hand, an internal register module is set up in the protocol conversion bridging chip. Based on automotive safety standards, it performs safety diagnostics while the vehicle is running and transmits the diagnostic anomalies to the intelligent control chip. This allows the intelligent control chip to remind the vehicle occupants to stop the vehicle for inspection or send it to a repair shop in a timely manner. As a result, the driving experience for the vehicle occupants is improved.

[0057] One embodiment of this application also provides a smart cockpit. The smart cockpit includes the cockpit display system described above.

[0058] One embodiment of this application also provides a vehicle including a smart cockpit. Furthermore, when the cockpit display system is arranged within the vehicle's electronic equipment, the electronic equipment may include a processor and memory. The memory is used to store one or more computer programs. The one or more computer programs are configured to be executed by the processor.

[0059] It is understood that the structure illustrated in this embodiment does not constitute a specific limitation on the electronic device. In other embodiments, the electronic device may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements.

[0060] Electronic devices can be desktop computers, laptops, handheld computers, industrial computers, tablet computers, servers, and other computing devices. Those skilled in the art will understand that the schematic diagrams are merely examples of electronic devices and do not constitute a limitation on the electronic devices. They may include more or fewer components than shown in the diagrams, or combinations of certain components, or different components. For example, electronic devices may also include input / output devices, network access devices, buses, etc.

[0061] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor, a single-chip microcomputer, or any conventional processor.

[0062] Memory can be used to store computer programs and / or modules / units. The processor implements various functions of the electronic device by running or executing the computer programs and / or modules / units stored in the memory, and by accessing data stored in the memory. Memory can mainly include a program storage area and a data storage area. The program storage area can store the operating system, applications required for at least one function (such as sound playback, image playback, etc.), etc.; the data storage area can store data created based on the use of the electronic device (such as audio data), etc. Furthermore, memory can include high-speed random access memory, and can also include non-volatile memory, such as hard disks, memory, plug-in hard disks, smart media cards (SMC), secure digital cards (SD cards), flash cards, at least one disk storage device, flash memory device, or other non-volatile solid-state storage devices.

[0063] This application also discloses a computer-readable storage medium that stores computer instructions. When the computer instructions are executed on an electronic device, the electronic device performs the steps of the health management method described in the above embodiments. The storage medium can be any medium capable of storing program code, such as a USB flash drive, portable hard drive, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disc.

[0064] Those skilled in the art should recognize that the specific embodiments described in this specification may be given different names, and the above description is merely illustrative of the structure of this application. All equivalent or simple variations made based on the construction, features, and principles of this application are included within the scope of protection of this application. Those skilled in the art to which this application pertains may make various modifications or additions to the described specific examples or adopt similar methods, as long as they do not deviate from the structure of this application or exceed the scope defined by the claims of this application, all of which should fall within the scope of protection of this application.

[0065] D1: First DP interface D2: Second DP interface L1: First LVDS interface L2: Second LVDS interface E1: First eDP interface E2: Second eDP interface

Claims

1. A cockpit display system, wherein, include: The vehicle infotainment controller generates a first display signal, which is a display signal based on the DP / eDP protocol. A cockpit display is electrically connected to the vehicle infotainment controller and is equipped with a protocol conversion bridge chip. The protocol conversion bridge chip receives the first display signal and converts it into a second display signal, which is a converted signal based on the LVDS protocol. The cockpit display is also used to display external information based on the second display signal. The first display signal includes a DP protocol signal and / or an eDP protocol signal; the in-vehicle infotainment controller includes an intelligent control chip, the cockpit display includes a timing control circuit board and a display driver chip, the protocol conversion bridge chip is disposed within the timing control circuit board, the intelligent control chip is communicatively connected to the protocol conversion bridge chip, the protocol conversion bridge chip is communicatively connected to the display driver chip, the intelligent control chip has a first DP interface, the protocol conversion bridge chip has a second DP interface and a first LVDS interface, the intelligent control chip transmits the DP protocol signal to the protocol conversion bridge chip through the first DP interface and the second DP interface; the display driver chip has a second LVDS interface, the protocol conversion bridge chip converts the DP protocol signal into a second display signal, and then transmits it to the display driver chip through the first LVDS interface and the second LVDS interface; The intelligent control chip is further provided with a first eDP interface, and the protocol conversion bridge chip is provided with a second eDP interface. The intelligent control chip transmits the eDP protocol signal to the protocol conversion bridge chip through the first eDP interface and the second eDP interface. After the protocol conversion bridge chip converts the eDP protocol signal into a second display signal, it transmits it to the display driver chip through the first LVDS interface and the second LVDS interface.

2. The cockpit display system as described in claim 1, wherein, The in-vehicle infotainment controller also includes a Re-timer chip, which is communicatively connected to the intelligent control chip and the protocol conversion bridge chip. The Re-timer chip performs equalization optimization processing on the first display signal output by the intelligent control chip and transmits the processed first display signal to the protocol conversion bridge chip.

3. The cockpit display system as described in claim 1, wherein, There is a main channel between the intelligent control chip and the protocol conversion bridge chip. The intelligent control chip transmits the audio and video information in the first display signal to the protocol conversion bridge chip through the main channel.

4. The cockpit display system as described in claim 3, wherein, An auxiliary channel is also provided between the intelligent control chip and the protocol conversion bridge chip. The intelligent control chip transmits the control information and transmission setting parameters in the first display signal to the protocol conversion bridge chip through the auxiliary channel, or the protocol conversion bridge chip transmits the control information and transmission setting parameters in the first display signal back to the intelligent control chip through the auxiliary channel.

5. The cockpit display system as claimed in claim 1, wherein, The second display signal includes an LVDS protocol signal; the cockpit display also includes a cockpit display screen, the display driver chip is disposed within the cockpit display screen, and the protocol conversion bridge chip includes a protocol receiving module, a computing control module, an image processing module, and an LVDS transmission module. The image processing module is communicatively connected to the protocol receiving module, the LVDS transmission module, and the computing control module. The protocol receiving module transmits the first display signal received from the intelligent control chip to the image processing module. The image processing module converts the first display signal into the LVDS protocol signal and then transmits the converted LVDS protocol signal to the LVDS transmission module. The LVDS transmission module transmits the converted LVDS protocol signal to the cockpit display screen via the display driver chip.

6. The cockpit display system as claimed in claim 5, wherein, The protocol conversion bridging chip also includes an active synchronization filtering module. The active synchronization filtering module is communicatively connected to the protocol receiving module and the image processing module. The computing control module is communicatively connected to the active synchronization filtering module. The protocol receiving module transmits the first display signal received from the intelligent control chip to the active synchronization filtering module. After correcting the first display signal, the active synchronization filtering module transmits the processed first display signal to the image processing module.

7. The cockpit display system as claimed in claim 6, wherein, The protocol conversion bridging chip also includes an internal register module, which is communicatively connected to the computing control module. The computing control module detects the first display signal and the second display signal output by the active synchronization filtering module and the image processing module, performs diagnostic analysis on the first display signal and the second display signal, and sends the diagnostic results to the internal register module for triggering. The internal register module then transmits the diagnostic results to the intelligent control chip.

8. An intelligent cockpit, wherein, The intelligent cockpit includes a cockpit display system as described in any one of claims 1 to 7.

9. A vehicle, wherein, The vehicle includes an intelligent cockpit as described in claim 8.

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