Display switching device and display system

Abstract

The utility model discloses a display switching device and a display system, and relates to the technical field of automobiles. The display switching device comprises a substrate, a signal receiving board and a board-to-board connector, the signal receiving board comprises a host connector and a deserializing chip, the host connector is used for connecting a vehicle-mounted host, the deserializing chip is connected with the host connector and a first end of the board-to-board connector, and the deserializing chip is used for converting video signals into LVDS signals; the substrate comprises a signal conversion chip and a Type-C interface, the signal conversion chip is connected with the second end of the board-to-board connector and the Type-C interface, the Type-C interface is used for being connected with a display, and the signal conversion chip is used for converting the LVDS signal into a DP signal. The video signal of the vehicle-mounted host is converted into the DP signal by using the signal receiving board and the substrate, and the display supporting the Type-C interface can display the video picture with the best effect based on the DP signal.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobiles, in particular to a display switching device and a display system. BACKGROUND

[0002] The vehicle host and the screen are important components of the vehicle audio and video system. The vehicle host and the screen cooperate with each other in the vehicle audio and video system to provide high-quality video experience for users. The vehicle host is responsible for outputting a video signal to the screen, and the screen is responsible for playing a video picture corresponding to the video signal. At the same time, the screen can also serve as an interface for users to interact with the vehicle audio and video system, and users can control the vehicle host to play different videos by touching the screen.

[0003] In the related art, the vehicle host and the screen are interconnected through a serializer chip and a deserializer chip. The vehicle host inputs a video signal to the serializer chip, the serializer chip transmits the video signal to the deserializer chip, the deserializer chip converts the video signal into a LVDS (Low-Voltage Differential Signaling) signal for driving the screen, and the screen displays a video picture corresponding to the video signal under the driving action of the LVDS signal. Since the deserializer chip directly drives the screen to display the video signal through the LVDS signal, different screens may not be able to display or may not have good display effects due to different sizes and resolutions. To this end, each vehicle host needs to be adapted to different screens one by one in terms of software and hardware to achieve the best display effect, which results in the need to purchase many screens for each vehicle host to test the adapted display screen, high development cost and low development efficiency. UTILITY MODEL CONTENT

[0004] The present application provides a display switching device and a display system to convert a video signal of a vehicle host into a DP signal through a signal receiving board and a substrate, so that any display supporting a Type-C interface can display a video picture with the best effect based on the DP signal, so that any display supporting a Type-C interface is adapted to the vehicle host, solving the problem of purchasing multiple displays to test the display screen adapted to the vehicle host in the prior art, reducing the development cost and improving the development efficiency.

[0005] In a first aspect, the present application provides a display switching device, a substrate, a signal receiving board and a board-to-board connector, wherein:

[0006] The signal receiving board includes a host connector and a deserializer chip, the host connector is used to connect the vehicle host, the deserializer chip is connected to the host connector and the first end of the board-to-board connector, and the deserializer chip is used to convert the video signal into a LVDS signal.

[0007] The substrate comprises a signal conversion chip and a Type-C interface, the signal conversion chip is connected to the second end of the board-to-board connector and the Type-C interface, and the Type-C interface is used to connect a display, and the signal conversion chip is used to convert an LVDS signal into a DP signal.

[0008] Optionally, the substrate and the signal receiving board are spaced apart and oppositely arranged, and the board-to-board connector is arranged between the substrate and the signal receiving board.

[0009] By the above technical means, the substrate and the signal receiving board are arranged in a stacked structure, and the board-to-board connector is arranged between the substrate and the signal receiving board to form a relatively stable structure, thereby eliminating the connection wire and improving the convenience of replacing the signal receiving board.

[0010] Optionally, the board-to-board connector is provided with an LVDS interface, the board-to-board connector is connected to the signal conversion chip and the deserializing chip through the LVDS interface, and the LVDS interface is used to transmit the LVDS signal transmitted by the deserializing chip to the signal conversion chip.

[0011] By the above technical means, the LVDS interface arranged on the board-to-board connector realizes the communication transmission of the LVDS signal between the deserializing chip and the signal conversion chip.

[0012] Optionally, the substrate further comprises a microcontroller, the microcontroller is connected to the second end of the board-to-board connector and the signal conversion chip, the signal conversion chip is further used to analyze and send a touch signal transmitted by the Type-C interface to the microcontroller, the microcontroller is used to convert the touch signal into touch position information, the board-to-board connector is used to transmit the touch position information to the deserializing chip, and the deserializing chip is further used to transmit the touch position information to the vehicle-mounted host.

[0013] By the above technical means, the touch signal can be converted into touch position information recognizable by the vehicle-mounted host based on the signal conversion chip and the microcontroller, so that the vehicle-mounted host installed with different touch response software can accurately respond to the touch operation triggered by the user according to the touch position information. Therefore, the vehicle-mounted host installed with any touch response software can be matched with the touch display to realize the touch function, without the development work of software adaptation of different touch signals for the vehicle-mounted host, thereby improving the development efficiency of the vehicle-mounted host.

[0014] Optionally, the board-to-board connector is provided with an I2C interface, the board-to-board connector connects the deserializing chip and the microcontroller through the I2C interface, and the I2C interface is used to transmit the touch position information transmitted by the microcontroller to the deserializing chip.

[0015] Through the above technical means, the I2C interface provided on the board-to-board connector realizes the communication transmission of the touch position information between the deserializing chip and the microcontroller.

[0016] Optionally, the microcontroller connects the signal conversion chip through a USB interface.

[0017] Through the above technical means, the USB interface realizes the communication transmission of the touch signal between the microcontroller and the signal conversion chip.

[0018] Optionally, the board-to-board connector is provided with a GPIO interface, the board-to-board connector connects the deserializing chip and the signal conversion chip through the GPIO interface, and the GPIO interface is used to transmit the control instruction transmitted by the deserializing chip to the signal conversion chip.

[0019] Through the above technical means, the GPIO interface provided on the board-to-board connector realizes the communication transmission of the control instruction between the deserializing chip and the signal conversion chip.

[0020] Optionally, the substrate further comprises a power module and a power converter, the power module is connected to the power converter, the power converter is used to connect an external power supply, and the power module is used to supply power to the substrate, the signal receiving board and the board-to-board connector.

[0021] Through the above technical means, the power module and the power converter are used to supply power to the substrate, the signal receiving board and the board-to-board connector respectively, so as to ensure the power supply reliability of the substrate, the signal receiving board and the board-to-board connector.

[0022] Optionally, the substrate further comprises a charging chip and a power converter, the charging chip is connected to the Type-C interface and the power converter, the power converter is used to connect an external power supply, and the charging chip is used to supply power to the display through the Type-C interface.

[0023] Through the above technical means, the charging chip, the power converter and the Type-C interface are used to supply power to the display, so that the display can be powered on and used when the Type-C interface is plugged in, without the need to connect an external power supply, saving the power connection wire between the display and the external power supply, and being conducive to reducing the installation space required by the display.

[0024] In the second aspect, the application provides a display system, comprising a vehicle-mounted host, a display and the display adapter as described in the first aspect.

[0025] In the application, the display adapter converts the video signal into an LVDS signal through the deserializing chip in the signal receiving board, transmits the LVDS signal to the signal conversion chip of the base plate through the board-to-board connector, converts the LVDS signal into a DP signal through the signal conversion chip, transmits the DP signal to the display through the Type-C interface, and the display displays the video picture corresponding to the video signal based on the DP signal. The DP signal can be flexibly applied in displays of different sizes and resolutions, so that various types of displays can display the best video picture effect under the action of the DP signal. Therefore, any display supporting the Type-C interface is suitable for the vehicle-mounted host, and there is no need to test multiple types of displays to determine the display screen suitable for the vehicle-mounted host, solving the problem in the prior art that multiple displays need to be purchased to test the display screen suitable for the vehicle-mounted host, reducing the development cost and improving the development efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of the display adapter provided by the application;

[0027] Figure 2 is a structural schematic diagram of the display adapter provided by the application. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the application clearer, the specific embodiments of the application will be further described in detail below with reference to the drawings. It can be understood that the specific embodiments described herein are only used to explain the application, but not to limit the application. In addition, it should be noted that, for the convenience of description, only parts related to the application are shown in the drawings, but not all contents. Before discussing the example embodiments in more detail, it should be mentioned that some example embodiments are described as processes or methods depicted by flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of the operations can be implemented in parallel, concurrently or simultaneously. In addition, the order of the operations can be rearranged. The process can be terminated when the operations are completed, but can also have additional steps not included in the drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0029] The terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the use of such terms as "first", "second", and the like, if they are used in the present application, are used to distinguish one object from another in a particular embodiment and are not necessarily used to describe a particular sequential or chronological order. Also, the use of the terms first, second, and the like, if they are used in the present application, are not necessarily used "chronologically" or "sequentially", but are used to distinguish one object from another object of a similar or same type. For example, a first object and a second object can be used to distinguish between two objects of the same type, and the first object can be used prior to the second object in some embodiments, and the second object can be used prior to the first object in other embodiments. Furthermore, the use of the term "and / or", within certain embodiments in the present application, is intended to represent an "inclusive or" of the linked items of the "and / or". That is, the items are interdependent and at least one of the items must be present. The use of the term "and / or", within certain embodiments in the present application, is intended to be representative of a "one and only one" of the linked items of the "and / or". That is, the items are mutually exclusive and only one of the items can be present.

[0030] In a more common existing implementation, the vehicle-mounted host and the screen are interconnected through a serialization chip and a deserialization chip. The protocol between the deserialization chip and the serialization chip is a private protocol of each chip company, and can only be paired one-to-one. The vehicle-mounted host inputs a video signal to the serialization chip. The serialization chip converts the low-speed parallel video signal into a high-speed serial signal, and transmits the high-speed serial signal to the deserialization chip through the private protocol. The deserialization chip analyzes the private protocol to obtain the high-speed serial signal, converts the high-speed serial signal back into a low-speed parallel video signal, and converts the low-speed parallel video signal into an LVDS signal for driving the screen. The screen displays a video picture corresponding to the video signal under the driving action of the LVDS signal. Since the deserialization chip directly drives the screen to display the video signal through the LVDS signal, different screens may not be able to display or have poor display effects due to different sizes and resolutions. To this end, each vehicle-mounted host needs to be one-to-one software and hardware adapted to different screens to achieve the best display effect. This results in each vehicle-mounted host needing to purchase many screens to test the adapted display screens, which is high in development cost and low in development efficiency. Moreover, the screen of the vehicle-mounted host cannot be reused in other vehicle-mounted host development projects, resulting in resource waste. In addition, when the vehicle-mounted host is configured with a touch display screen, the touch display screen collects a touch signal and inputs the touch signal to the deserialization chip. The deserialization chip transmits the touch signal to the serialization chip through the private protocol. The serialization chip analyzes the touch signal through the private protocol, and the vehicle-mounted host determines a corresponding touch operation triggered according to the touch signal. Since different touch display screens have different touch schemes, each vehicle-mounted host needs to be one-to-one software adapted to the touch display screen to accurately respond to the touch signal, which results in the vehicle-mounted host needing to develop work for adapting different touch signals, and the development efficiency of the vehicle-mounted host is low.

[0031] To solve the above problems, the embodiment provides a display adapter, which converts the video signal of the vehicle host into a DP signal through a signal receiving board and a substrate, and any display supporting a Type-C interface can display the best video picture based on the DP signal, so that any display supporting the Type-C interface is adapted to the vehicle host. The touch signal is converted into touch position information recognizable by the vehicle host through the substrate and a microcontroller, and the vehicle host can accurately respond to the corresponding touch operation based on the touch position information, so that the touch signal collected by any touch display supporting the Type-C interface can be recognized and processed by any vehicle host after being processed by the substrate and the microcontroller, so that the vehicle host does not need to develop recognition software for the touch display to adapt to the corresponding touch signal, and the development efficiency of the vehicle host is improved.

[0032] In an embodiment, Figure 1 A structural schematic diagram of a display adapter provided by the embodiment is given. As shown in the figure, Figure 1 The display adapter includes a substrate, a signal receiving board and a board-to-board connector. The signal receiving board includes a host connector and a deserializing chip, the host connector is used to connect the vehicle host, the deserializing chip is connected to the host connector and the first end of the board-to-board connector, and the deserializing chip is used to convert the video signal into an LVDS signal; the substrate includes a signal conversion chip and a Type-C interface, the signal conversion chip is connected to the second end of the board-to-board connector and the Type-C interface, the Type-C interface is used to connect the display, and the signal conversion chip is used to convert the LVDS signal into a DP (DisplayPort) signal.

[0033] For example, the vehicle host is provided with a serializing chip, and the serializing chip and the deserializing chip of the display adapter are one-to-one paired. The vehicle host inputs the video signal into the serializing chip, and the serializing chip transmits the video signal to the deserializing chip through a private protocol and the host connector. The deserializing chip analyzes the video signal transmitted by the serializing chip in the private protocol, converts the video signal into an LVDS signal, and transmits the LVDS signal to the signal conversion chip through the board-to-board connector. The signal conversion chip converts the LVDS signal transmitted by the board-to-board connector into a DP signal, and transmits the DP signal to the display through the Type-C interface. The display displays the video picture corresponding to the video signal according to the DP signal transmitted by the Type-C interface. The embodiment converts the video signal into the DP signal commonly used by the display through the deserializing chip and the signal conversion chip, so that any display supporting the Type-C interface can present the best video picture effect under the action of the DP signal. Therefore, any display supporting the Type-C interface is adapted to the vehicle host, and there is no need to test multiple types of displays to determine the display screen adapted to the vehicle host.

[0034] It should be noted that in the development of the vehicle host in the past, each development project needs to purchase 50-70 displays for debugging, research and development testing and production testing to test the display adapted to the vehicle host, and the development cost is high. The display adapter provided in the embodiment can adapt any type of display to the vehicle host, so that one display can be purchased for debugging, research and development testing and production testing of the vehicle host, saving the cost of purchasing the display and effectively reducing the development cost.

[0035] Optionally, the host connector can be a universal interface, such as a gold finger interface. The display adapter is plugged into the vehicle host through the universal interface.

[0036] It should be noted that the deserializing chip of the signal receiving plate is paired with the serializing chip of the vehicle host one by one, and the signal receiving plate with the corresponding type of deserializing chip can be developed and set according to the vehicle host with different types of serializing chips. In the case of replacing the vehicle host, the signal receiving plate of the display adapter can be replaced without replacing the substrate and the display, improving the convenience of replacing the vehicle host. If the serializing chip of the replaced vehicle host remains unchanged, the signal receiving plate of the display adapter does not need to be replaced.

[0037] Optionally, Figure 2 is a structure diagram of the display adapter provided in the embodiment of the application. As shown in Figure 2 , the substrate 12 and the signal receiving plate 11 are spaced apart and oppositely arranged, and the board-to-board connector 13 is arranged between the substrate 12 and the signal receiving plate 11. The signal receiving plate 11 can be arranged above the substrate 12, and the signal receiving plate 11 and the substrate 12 are connected through the board-to-board connector 13 and supported through the support column 14. When the signal receiving plate of the display adapter is replaced, the signal receiving plate can be detached from the board-to-board connector, and a new signal receiving plate can be plugged into the board-to-board connector to complete the replacement of the signal receiving plate of the display adapter. The substrate and the signal receiving plate are arranged in a stacked structure in the embodiment, and the board-to-board connector between the substrate and the signal receiving plate can form a relatively stable structure, saving the connection wire and improving the convenience of replacing the signal receiving plate.

[0038] Reference Figure 1The board-to-board connector is provided with an LVDS interface. The board-to-board connector connects the signal conversion chip and the deserializing chip through the LVDS interface. The LVDS interface is used to transmit the LVDS signal transmitted by the deserializing chip to the signal conversion chip. For example, the first end of the board-to-board connector is provided with a first LVDS interface used to connect the deserializing chip, and the second end of the board-to-board connector is provided with a second LVDS interface used to connect the signal conversion chip. After the video signal is converted into the LVDS signal by the deserializing chip, the LVDS signal is transmitted to the first LVDS interface. The board-to-board connector forwards the LVDS signal received by the first LVDS interface to the second LVDS interface. The second LVDS interface transmits the LVDS signal to the signal conversion chip. The signal conversion chip converts the LVDS signal into the DP signal. In this embodiment, the LVDS signal is communicated and transmitted between the deserializing chip and the signal conversion chip through the LVDS interface arranged on the board-to-board connector.

[0039] With reference to Figure 1 The substrate further comprises a microcontroller. The microcontroller is connected to the second end of the board-to-board connector and the signal conversion chip. The signal conversion chip is further used to analyze and send the touch signal transmitted by the Type-C interface to the microcontroller. The microcontroller is used to convert the touch signal into touch position information. The touch position information is transmitted to the deserializing chip through the board-to-board connector. The deserializing chip is further used to transmit the touch position information to the vehicle host. The touch signal is the signal collected by the display when the user touches the screen. For example, when the display is a touch display, the display can collect the touch signal when the user touches the screen. The touch signal is transmitted to the signal conversion chip through the Type-C interface. The signal conversion chip analyzes the touch signal into a type that can be processed by the microcontroller and transmits the analyzed touch signal to the microcontroller. The microcontroller converts the touch signal into touch position information that can be recognized by the host. The touch position information is sent to the deserializing chip through the board-to-board connector. The deserializing chip sends the touch position information to the deserializing chip of the vehicle host through a private protocol. The deserializing chip analyzes the touch position information in the private protocol and transmits the touch position information to the processor of the vehicle host. The processor determines the touch operation input by the user according to the touch position information. In this embodiment, the signal conversion chip and the microcontroller convert the touch signal into touch position information that can be recognized by the vehicle host. Therefore, the vehicle host installed with any touch response software can realize the touch function in combination with the touch display. The development work of software adaptation of different touch signals for the vehicle host is not required, and the development efficiency of the vehicle host is improved.

[0040] With reference to Figure 1The board-to-board connector is provided with an I2C interface, the board-to-board connector connects the deserializing chip and the microcontroller through the I2C interface, and the I2C interface is used to transmit the touch position information transmitted by the microcontroller to the deserializing chip. For example, the first end of the board-to-board connector is provided with a first I2C interface for connecting the deserializing chip, and the second end is provided with a second I2C interface for connecting the microcontroller. After the microcontroller converts the touch signal into touch position information, the microcontroller transmits the touch position information to the second I2C interface, the board-to-board connector forwards the touch position information received by the second I2C interface to the first I2C interface, the first I2C interface transmits the touch position information to the deserializing chip, the deserializing chip transmits the touch position information to the serializing chip through a private protocol, the serializing chip parses the touch position information in the private protocol, and transmits the touch position information to the processor of the vehicle host for processing. In this embodiment, the I2C interface provided on the board-to-board connector is used to realize the communication transmission of the touch position information between the deserializing chip and the microcontroller.

[0041] Optionally, in addition to the I2C interface, the deserializing chip and the microcontroller can also communicate and transmit touch position information through other serial communication interfaces such as SPI (Serial Peripheral Interface) or UART.

[0042] Reference Figure 1 The microcontroller is connected to the signal conversion chip through a USB (Universal Serial Bus) interface. For example, the signal conversion chip sends the parsed touch signal to the microcontroller through the USB interface, and the microcontroller converts the touch signal transmitted by the USB interface into touch position information. In this embodiment, the USB interface is used to realize the communication transmission of the touch signal between the microcontroller and the signal conversion chip.

[0043] It should be noted that in the development process of the vehicle host in the prior art, the debugging process of the vehicle host is limited by the development progress of the screen. As long as the screen has not completed sample development, it is impossible to start gradual debugging, or it is necessary to specially find a suitable screen, which will additionally increase the software development workload. In this embodiment, since the display can display pictures based on the DP signal and the vehicle host can process identifiable touch position information, the display and touch functions of the vehicle host can be realized when the screen has not completed sample development, without increasing the software development workload. At this time, the vehicle host can start debugging other functions in advance, thereby effectively improving the debugging efficiency of the vehicle host.

[0044] Reference Figure 1The board-to-board connector is provided with a GPIO (General Purpose Input / Output) interface, the board-to-board connector connects the deserializing chip and the signal conversion chip through the GPIO interface, and the GPIO interface is used for transmitting the control instruction transmitted by the deserializing chip to the signal conversion chip. For example, the first end of the board-to-board connector is provided with a first GPIO interface connected with the deserializing chip, and the second end is provided with a second GPIO interface used for connecting the signal conversion chip. The control instruction is input into the adding chip by the vehicle-mounted host, the control instruction is transmitted to the deserializing chip by the adding chip through a private protocol, and the control instruction is parsed in the private protocol by the deserializing chip. The deserializing chip transmits the control instruction to the first GPIO interface, the board-to-board connector forwards the control instruction received by the first GPIO interface to the second GPIO interface, and the second GPIO interface transmits the control instruction to the signal conversion chip. The signal conversion chip responds to the control instruction. In this embodiment, the communication transmission of the control instruction between the deserializing chip and the signal conversion chip is realized through the GPIO interface arranged on the board-to-board connector.

[0045] Reference Figure 1 The substrate further comprises a power module and a power converter, the power module is connected with the power converter, the power converter is used for connecting an external power supply, and the power module is used for supplying power to the substrate, the signal receiving board and the board-to-board connector. The power converter is a DC module used for converting the power of an alternating current power supply or other power supply into direct current power. The power converter converts the power of the external power supply into direct current power and supplies the direct current power to the power module, and the power module converts the direct current power into the voltage required by the substrate, the signal receiving board and the board-to-board connector and supplies power to the substrate, the signal receiving board and the board-to-board connector respectively. In this embodiment, the power module and the power converter are used for supplying power to the substrate, the signal receiving board and the board-to-board connector respectively, thereby ensuring the power supply reliability of the substrate, the signal receiving board and the board-to-board connector.

[0046] Reference Figure 1 The substrate further comprises a charging chip and a power converter, the charging chip is connected with the Type-C interface and the power converter, the power converter is used for connecting an external power supply, and the charging chip is used for supplying power to the display through the Type-C interface. For example, the power converter converts the power of the external power supply into direct current power and supplies the direct current power to the charging chip, and the charging chip converts the direct current power according to the charging standard and protocol of the Type-C interface to supply power to the display through the Type-C interface. In this embodiment, the charging chip, the power converter and the Type-C interface are used for supplying power to the display, so that the display can be powered on and used when the Type-C interface is plugged in, without the need of connecting an external power supply, thereby saving the power connection wire between the display and the external power supply and facilitating the reduction of the installation space required by the display.

[0047] In summary, the display conversion device provided by the embodiment of the present application converts the video signal into an LVDS signal through a deserializing chip in the signal receiving board, transmits the LVDS signal to a signal conversion chip of the substrate through a board-to-board connector, converts the LVDS signal into a DP signal through the signal conversion chip, and transmits the DP signal to the display through a Type-C interface. The display displays the video picture corresponding to the video signal based on the DP signal. The DP signal can be flexibly applied in displays of different sizes and resolutions, so that various types of displays can display the best video picture effect under the action of the DP signal. Therefore, any display supporting the Type-C interface is suitable for the vehicle host, and there is no need to test multiple types of displays to determine the display screen suitable for the vehicle host, solving the problem in the prior art that multiple displays need to be purchased to test the display screen suitable for the vehicle host, reducing the development cost and improving the development efficiency.

[0048] On the basis of the above embodiment, the embodiment of the present application further provides a display system, which comprises a vehicle host, a display and the display conversion device described in the above embodiment. The vehicle host is connected to the host connector of the signal receiving board of the display conversion device, and the display is connected to the Type-C interface of the substrate of the display conversion device. The vehicle host can transmit the video signal to the display for display through the display conversion device, and the display can transmit the touch signal to the vehicle host for processing through the display conversion device. The display conversion device supports conversion of the video signal into a DP signal, so that various types of displays can present the best display effect of the video signal. The display conversion device supports conversion of the touch signal into touch position information, so that the vehicle host can process the touch signal collected by various types of touch displays. Therefore, the vehicle host can be suitable for various types of displays.

[0049] The above is only the preferred embodiment of the present application and the technical principle applied. The present application is not limited to the specific embodiments herein, and various obvious changes, re-adjustments and replacements made by those skilled in the art will not deviate from the protection scope of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and more other equivalent embodiments can be included without deviating from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A display switching apparatus, characterized by comprising: The display adapter comprises a substrate, a signal receiving board and a board-to-board connector, wherein: the signal receiving board comprises a host connector and a deserializing chip, the host connector is used for connecting a vehicle host, and the deserializing chip is connected to the host connector and a first end of the board-to-board connector, and is used for converting a video signal into an LVDS signal; the substrate comprises a signal converting chip and a Type-C interface, the signal converting chip is connected to a second end of the board-to-board connector and the Type-C interface, the Type-C interface is used for connecting a display, and the signal converting chip is used for converting the LVDS signal into a DP signal.

2. The display switching apparatus according to claim 1, wherein The substrate and the signal receiving board are spaced apart and oppositely arranged, and the board-to-board connector is arranged between the substrate and the signal receiving board.

3. The display switching apparatus according to claim 1, wherein The board-to-board connector is provided with an LVDS interface, the board-to-board connector is connected to the signal converting chip and the deserializing chip through the LVDS interface, and the LVDS interface is used for transmitting the LVDS signal transmitted by the deserializing chip to the signal converting chip.

4. The display switching apparatus according to claim 1, wherein The substrate further comprises a microcontroller, the microcontroller is connected to the second end of the board-to-board connector and the signal converting chip, the signal converting chip is further used for parsing a touch signal transmitted by the Type-C interface and sending the touch signal to the microcontroller, the microcontroller is used for converting the touch signal into touch position information, transmitting the touch position information to the deserializing chip through the board-to-board connector, and the deserializing chip is further used for transmitting the touch position information to the vehicle host.

5. The display switching apparatus according to claim 4, wherein The board-to-board connector is provided with an I2C interface, the board-to-board connector is connected to the deserializing chip and the microcontroller through the I2C interface, and the I2C interface is used for transmitting the touch position information transmitted by the microcontroller to the deserializing chip.

6. The display switching apparatus according to claim 4, wherein The microcontroller is connected to the signal converting chip through a USB interface.

7. The display switching apparatus according to claim 1, wherein The board-to-board connector is provided with a GPIO interface, the board-to-board connector is connected to the deserializing chip and the signal converting chip through the GPIO interface, and the GPIO interface is used for transmitting a control instruction transmitted by the deserializing chip to the signal converting chip.

8. The display switching apparatus according to claim 1, wherein The substrate further comprises a power module and a power converter, the power module is connected to the power converter, the power converter is used for connecting an external power supply, and the power module is used for supplying power to the substrate, the signal receiving board and the board-to-board connector.

9. The display switching apparatus according to claim 1, wherein The substrate further comprises a charging chip and a power converter, the charging chip is connected to the Type-C interface and the power converter, the power converter is used for connecting an external power supply, and the charging chip is used for supplying power to the display through the Type-C interface.

10. A display system characterized by, The display adapter comprises a vehicle host, a display and a display adapter as claimed in any one of claims 1-9.

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