CN210804379U - Multi-screen display system of vehicle - Google Patents
Multi-screen display system of vehicle Download PDFInfo
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- CN210804379U CN210804379U CN201922158957.XU CN201922158957U CN210804379U CN 210804379 U CN210804379 U CN 210804379U CN 201922158957 U CN201922158957 U CN 201922158957U CN 210804379 U CN210804379 U CN 210804379U
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Abstract
The utility model provides a many screen display system of vehicle belongs to the vehicle display screen field. The system comprises: the host computer comprises an encoding chip used for encoding the digital image data to be displayed; the system comprises a host, a plurality of display devices and a control unit, wherein one display device is connected with the host, two adjacent display devices are connected, and each display device comprises a decoding chip, a routing chip and a display screen; the decoding chip is in data connection with the display device and is used for receiving digital image data sent by the host or an adjacent display device, extracting and decoding specific digital image data to be displayed on the display device where the decoding chip is located and sending the specific digital image data to the display screen; the decoding chip is also in data connection with the routing chip, the decoding chip is also used for sending the undecoded digital image data information to the routing chip, and the routing chip is used for sending the undecoded digital image data to the decoding chip of the adjacent display device. The utility model discloses a many screen display system expansibility is strong and the extension is convenient.
Description
Technical Field
The utility model relates to a vehicle display screen field especially relates to a many screen display system of vehicle.
Background
With the rise and popularization of the internet of vehicles and the internet of things, internet automobiles, new energy automobiles and automatic driving are development directions in the field of automobiles in the future. And the automobile gradually upgrades to security, travelling comfort, recreational, and more on-vehicle liquid crystal display appears in header board and the control cabinet in the cockpit. Meanwhile, along with the improvement of the overall requirements of consumers on the display screen, more and more interface contents are displayed on the vehicle-mounted display screen, and even the display screen matched with the overall shape design of the automobile cabin, the curved surface, the special shape and the like can be quickly carried on the automobile.
The trend of the future vehicle-mounted display is toward multi-screen multi-function. The vehicle-mounted host computer is connected with multiple screens, and performs image processing and video picture transmission, and one screen with multiple screens is the current mainstream solution.
The connection between the host and the display screen is schematically shown in fig. 1: the video signal of each display screen is output by a host port; each display screen needs a corresponding hardware circuit added to the host; each display screen is connected with the host machine through a shielded twisted pair.
Therefore, the existing multi-screen display scheme strongly associates the number of the display screens with the hardware of the host, if 1 display screen needs to be added, the host needs to change the circuit, 1 hardware circuit corresponding to the display screen is added, the hardware can not be unique, and the expansion process of the display screens is troublesome. And the number of the display screens is limited by the number of output ports of the host, and the expansibility is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a strong and convenient many screen display system of extension of expansibility.
The utility model discloses a another aim shortens development cycle, reduce cost.
Particularly, the utility model provides a many screen display system of vehicle, include:
the host computer comprises an encoding chip used for encoding the digital image data to be displayed; and
a plurality of display devices, one of which is in data connection with the host and two adjacent ones of which are in data connection with each other,
each display device comprises a decoding chip, a routing chip and a display screen;
the decoding chip is in data connection with the display device and is used for receiving digital image data sent by the host or the adjacent display device, extracting and decoding specific digital image data to be displayed on the display device where the decoding chip is located and sending the decoded specific digital image data to the display screen so as to display the specific digital image data on the display screen;
the decoding chip is also in data connection with the routing chip, the decoding chip is also used for sending the undecoded digital image data information to the routing chip, and the routing chip is used for sending the undecoded digital image data to the adjacent decoding chip of the display device.
Optionally, the display device connected to the host is an instrument display device.
Optionally, the meter display is connected to an entertainment navigation display.
Optionally, the entertainment navigation display device is connected with a copilot display device.
Optionally, the copilot display device is connected to a rear seat display device.
Optionally, the host further comprises:
and the main control chip is in data connection with the coding chip and is used for converting the analog image data into digital image data and sending the digital image data to the coding chip.
Optionally, the main control chip is a high-pass 820A/8155 chip.
Optionally, the host and the display device are connected by a shielded twisted pair.
Optionally, two adjacent display devices are connected by a shielded twisted pair.
Because the utility model discloses a many screen display system's host computer only needs to dock a display device, therefore the host computer only need set up a hardware interface. The other display devices are connected in sequence, so that the number of the display devices is not limited by hardware interfaces of the main machine, and the display devices are only required to be continuously connected behind one display device during expansion, so that the expansibility is strong. The host supports a plurality of display screens through one hardware interface, the capability of the host can be fully utilized, the development cost and the hardware cost of the host are reduced, and the development period is shortened.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic diagram of a prior art multi-screen display system;
FIG. 2 is a schematic connection diagram of a multi-screen display system according to an embodiment of the present invention;
fig. 3 is a connection diagram of a multi-display system according to another embodiment of the present invention.
Detailed Description
Fig. 2 is a connection diagram of the multi-screen display system 100 according to an embodiment of the present invention. As shown in fig. 2, the present embodiment provides a multi-display system 100 of a vehicle, which may generally include a host 10 and a plurality of display devices 20. The host 10 includes an encoding chip 102 for encoding digital image data to be displayed. One of the display devices 20 is in data connection with the host 10, for example, via shielded twisted pair lines for transmitting video data. The data connection between two adjacent display devices 20 may also be through a shielded twisted pair. Each display device 20 includes a decoding chip 201, a routing chip 202, and a display screen (not shown). The decoding chip 201 is in data connection with the display device 20, and the decoding chip 201 is configured to receive digital image data sent from the host 10 or an adjacent display device 20, extract and decode specific digital image data to be displayed on the display device 20 where the digital image data is located, and send the decoded specific digital image data to the display screen, so as to display the specific digital image data on the display screen. The decoding chip 201 is also in data connection with the routing chip 202, the decoding chip 201 is further configured to send the undecoded digital image data information to the routing chip 202, and the routing chip 202 is configured to send the undecoded digital image data to the decoding chip 201 of the adjacent display device 20.
In this embodiment, the host 10 encodes the digital image data to be displayed on each display device 20, and each display device 20 receives the encoded digital image data through the decoding chip 201, extracts a part of data corresponding to the display device 20, decodes the data, and transmits the decoded data to the display screen for displaying. The data of the display device 20 is not transmitted to the next display device 20 by the routing chip 202, and the next display device 20 does the same.
Since the host 10 of the multi-screen display system 100 of the present embodiment only needs to interface with one display device 20, the host 10 only needs to set one hardware interface. The other display devices 20 are connected in sequence, so the number of the display devices 20 is not limited by the hardware interface of the host computer 10, and the display devices 20 only need to be connected behind one display device 20 during expansion, so the expansibility is strong. The host 10 supports a plurality of display screens through one hardware interface, and can make full use of the capability of the host 10, reduce the development cost and hardware cost of the host 10, and reduce the development period.
As shown in fig. 2, the host 10 further includes a main control chip 101, and the main control chip 101 is in data connection with the encoding chip 102, and is configured to convert analog image data into digital image data and send the digital image data to the encoding chip 102. The encoding chip 102 converts the received digital image data into an RGB digital image data stream and sends it to the display device 20 connected thereto through a video line.
Optionally, the main control chip 101 is a high-pass 820A/8155 chip.
Optionally, the routing chip 202 is a westernized or TI or the like chip.
Fig. 3 is a connection diagram of a multi-screen display system 100 according to another embodiment of the present invention. In another embodiment, as shown in fig. 3, the display device 20 connected to the host computer 10 is a meter display device 21.
Since the meter display device 21 is used to display information important for driving, such as driving data, driving state, and surrounding conditions of the vehicle, it is directly connected to the host computer 10, so that it can receive information and display images at the fastest speed, which is advantageous for safe driving of the vehicle.
As shown in FIG. 3, in one embodiment, meter display 21 is coupled to an entertainment navigation display 22.
As shown in fig. 3, the entertainment navigation display device 22 is optionally connected to a copilot display device 23.
Optionally, the copilot display device 23 is connected to a rear seat display device.
As shown in fig. 3, the rear seat display device may alternatively include a left rear seat display device 24 and a right rear seat display device 25, one of which may be selectively connected to the passenger display device 23 and the other of which is connected thereto.
The order in which the display devices 20 are arranged in this way substantially follows the degree of importance of the displayed content, and the important content can be preferentially output for the first time. The specific data processing procedure is as follows.
The main control chip 101 in the host 10 processes the 5 display screen image data streams and sends the processed display screen image data streams to the coding chip 102 in the host 10. The coding chip 102 in the host 10 converts the received image data stream into RGB image data stream, and sends the RGB image data stream to the decoding chip 201 in the instrument display screen through the video cable.
After receiving the RGB image data streams, the decoding chip 201 in the meter display device 21 extracts and decodes the display data of the meter display device 21, and displays the display data on the display screen of the meter display device 21, and simultaneously sends the RGB image data streams of the next 4 display devices 20 to the routing chip 202, and transfers the RGB image data streams of the next 4 display devices 20 to the decoding chip 201 of the entertainment navigation display screen through the video twisted pair.
The decoding chip 201 of the entertainment navigation display device 22 extracts and decodes the display data of the entertainment navigation display device 22 after receiving the RGB image data streams of the 4 display screens, displays the extracted and decoded display data in the display screen of the entertainment navigation display device 22, simultaneously sends the RGB image data streams of the following 3 display devices 20 to the routing chip 202, and transfers the RGB image data streams of the following 3 display devices 20 to the decoding chip 201 of the rider display device 20 through the video twisted pair.
The decoding chip 201 of the rider display device 20 extracts and decodes the RGB image data streams received from the 3 display devices 20, displays the RGB image data streams on the display screen of the rider display device 20, sends the RGB image data streams of the next 2 display devices 20 to the routing chip 202, and transfers the RGB image data streams of the next 2 display devices 20 to the decoding chip 201 of the left rear seat display device 24 through the video twisted pair.
The decoding chip 201 of the left rear seat display device 24 extracts and decodes the received RGB image data streams of the 2 display devices 20, and displays the extracted RGB image data streams on the display screen of the left rear seat display device 24; meanwhile, the RGB image data stream of the left rear seat display device 24 is sent to the routing chip 202, and the RGB image data stream of the right rear seat display device 25 is transmitted to the decoding chip 201 of the right rear seat display device 25 through the video twisted pair.
The decoding chip 201 of the right rear seat display device 25 extracts and decodes the RGB image data stream received from the right rear seat display device 25, and displays the extracted and decoded RGB image data stream on the display screen of the right rear seat display device 25.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (9)
1. A multi-display system of a vehicle, comprising:
the host computer comprises an encoding chip used for encoding the digital image data to be displayed; and
a plurality of display devices, one of which is in data connection with the host and two adjacent ones of which are in data connection with each other,
each display device comprises a decoding chip, a routing chip and a display screen;
the decoding chip is in data connection with the display device and is used for receiving digital image data sent by the host or the adjacent display device, extracting and decoding specific digital image data to be displayed on the display device where the decoding chip is located and sending the decoded specific digital image data to the display screen so as to display the specific digital image data on the display screen;
the decoding chip is also in data connection with the routing chip, the decoding chip is also used for sending the undecoded digital image data information to the routing chip, and the routing chip is used for sending the undecoded digital image data to the adjacent decoding chip of the display device.
2. A multi-display system as recited in claim 1,
and the display device connected with the host is an instrument display device.
3. A multi-display system as recited in claim 2,
the instrument display device is connected with the entertainment navigation display device.
4. A multi-display system as recited in claim 3,
the entertainment navigation display device is connected with the copilot display device.
5. A multi-display system as recited in claim 4,
and the copilot display device is connected with the rear seat display device.
6. A multi-display system as recited in any of claims 1-5, wherein the host further comprises:
and the main control chip is in data connection with the coding chip and is used for converting the analog image data into digital image data and sending the digital image data to the coding chip.
7. A multi-display system as recited in claim 6,
the main control chip is a high-pass 820A/8155 chip.
8. A multi-display system as recited in claim 1,
the host and the display device are connected through a shielded twisted pair.
9. A multi-display system as recited in claim 1,
two adjacent display devices are connected through a shielded twisted pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922158957.XU CN210804379U (en) | 2019-12-05 | 2019-12-05 | Multi-screen display system of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922158957.XU CN210804379U (en) | 2019-12-05 | 2019-12-05 | Multi-screen display system of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210804379U true CN210804379U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922158957.XU Active CN210804379U (en) | 2019-12-05 | 2019-12-05 | Multi-screen display system of vehicle |
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|---|---|
| CN (1) | CN210804379U (en) |
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- 2019-12-05 CN CN201922158957.XU patent/CN210804379U/en active Active
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