CN117149125A - Vehicle-mounted display screen, and partition display system and method of vehicle-mounted display screen - Google Patents
Vehicle-mounted display screen, and partition display system and method of vehicle-mounted display screen Download PDFInfo
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- CN117149125A CN117149125A CN202311405841.6A CN202311405841A CN117149125A CN 117149125 A CN117149125 A CN 117149125A CN 202311405841 A CN202311405841 A CN 202311405841A CN 117149125 A CN117149125 A CN 117149125A
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- 238000005192 partition Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000009977 dual effect Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
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- 238000012423 maintenance Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/76—Architectures of general purpose stored program computers
- G06F15/78—Architectures of general purpose stored program computers comprising a single central processing unit
- G06F15/7807—System on chip, i.e. computer system on a single chip; System in package, i.e. computer system on one or more chips in a single package
Abstract
The application belongs to the technical field of display screen partitioning, and discloses a vehicle-mounted display screen, a vehicle-mounted display screen partitioning display system and a vehicle-mounted display screen partitioning display method. According to the application, the mixed video stream is decoded into the first video stream and the second video stream through the deserializer, the first video stream and the second video stream are output to the display, the display receives the first video stream and the second video stream and displays the first video stream and the second video stream, so that the mixed video stream containing the two video streams is separated, and the separated two different video streams are transmitted to the corresponding display partition of the display screen.
Description
Technical Field
The application relates to the technical field of display screen partitioning, in particular to a vehicle-mounted display screen, a vehicle-mounted display screen partitioning display system and a vehicle-mounted display screen partitioning display method.
Background
Along with the vehicle-mounted display screens, in order to meet various demands of users, vehicle-mounted display screens with different resolutions or different display effects are derived, and along with the increasing variety of vehicle-mounted display screens, the current vehicle-mounted display screens are also focusing on partition display functions. In the current display screen partition function implementation, two vehicle-mounted display screens are controlled by a controller to realize display screen partition display, and two screens are essentially combined into one screen, the two screens are controlled by the controller respectively, the partition mode is easy to be limited by different manufacturers of components, so that the partition display effect is affected, meanwhile, a display partition display mode exists, two display chips exist in the display screen, the controller transmits video signals to a content partition chip, and the video is divided in the content partition chip and transmitted to a corresponding display chip, so that the display screen partition display is realized, and the cost for realizing the display screen partition is increased due to the fact that one chip is newly introduced.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present application and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The application mainly aims to provide a vehicle-mounted display screen, a vehicle-mounted display screen partition display system and a vehicle-mounted display screen partition display method, and aims to solve the technical problem that partition display can not be realized on a single display screen without introducing a new chip in the prior art.
In order to achieve the above object, the present application provides a vehicle-mounted display screen, including: the deserializer and the display are connected in sequence;
the deserializer is used for decoding the mixed video stream into a first video stream and a second video stream and outputting the first video stream and the second video stream to the display;
the display is configured to receive the first video stream and the second video stream, and display the first video stream and the second video stream.
Optionally, the display screen includes a first display chip and a second display chip, the first display chip and the second display chip divide the display screen into a first display area and a second display area, the first display chip divides the display screen into a first display area, and the second display chip divides the display screen into a second display area;
the first display chip is used for receiving the first video stream output by the deserializer and displaying the first video stream in the first display area;
the second display chip is configured to receive the second video stream output by the deserializer, and display the second video stream in the second display area.
In addition, in order to achieve the above purpose, the application also provides a vehicle-mounted display screen partition display system, which comprises a domain controller and a vehicle-mounted display screen which are sequentially connected, wherein the domain controller comprises an SOC and a serializer which are sequentially connected;
the SOC is used for generating a mixed video stream according to the content to be displayed and outputting the mixed video stream to the serializer;
the serializer is configured to output the received mixed video stream to the deserializer.
Optionally, the vehicle-mounted display screen partition display system further comprises an MCU, and the MCU is respectively connected with the deserializer and the display screen;
the MCU is used for receiving the pin signal states of the deserializer and the display.
In addition, in order to achieve the above purpose, the present application further provides a vehicle-mounted display screen partition display method, where the vehicle-mounted display screen partition display method is applied to the vehicle-mounted display screen partition display system, and the vehicle-mounted display screen partition display system includes: the deserializer and the display are connected in sequence;
the vehicle-mounted display screen partition display method comprises the following steps:
the deserializer decodes the mixed video stream into a first video stream and a second video stream, and outputs the first video stream and the second video stream to the display;
the display receives the first video stream and the second video stream and displays the first video stream and the second video stream.
Optionally, the display further includes a first display chip and a second display chip, and the display receives the first video stream and the second video stream and displays the first video stream and the second video stream, including;
the first display chip receives a first video stream transmitted by the deserializer, obtains first display content according to the first video stream, and displays the first display content in a first display area of the display;
and the second display chip receives the second video stream transmitted by the deserializer, obtains second display content according to the second video stream, and displays the second display content in a second display area of the display.
Optionally, before the deserializer decodes the mixed video stream into the first video stream and the second video stream and outputs the first video stream and the second video stream to the display, the method further includes:
the SOC divides the content to be displayed into odd-even staggered display content and outputs the odd-even staggered display content to a serializer;
the serializer receives the display content of the odd-even interleaving, separates the display content of the odd-even interleaving to obtain a first video stream and a second video stream, and outputs the first video stream and the second video stream to the deserializer as mixed video streams.
Optionally, the deserializer decodes the mixed video stream into a first video stream and a second video stream, and outputs the first video stream and the second video stream to the display, including:
the deserializer receives a mixed video stream obtained by the serializer according to the SOC and the content to be displayed;
the deserializer decodes the mixed video stream to obtain the first video stream and the second video stream;
the deserializer outputs to the display in the DUAL mode of OLDI output.
Optionally, the vehicle-mounted display screen includes an MCU, the MCU is connected with the deserializer and the display respectively, and the vehicle-mounted display screen partition display method further includes:
and the MCU establishes communication with the deserializer through the I2C, controls a reset signal of the deserializer, and writes configuration parameters stored and output by LVDS video in the MCU into the deserializer.
Optionally, the method for displaying the vehicle-mounted display screen in a partitioned manner further includes:
the MCU reads a LOCK signal of the deserializer, and generates error information of the deserializer when the LOCK signal is at a low level;
the MCU reads the pin information of the display screen, and when the pin information of the display is at a low level, a fault pin is obtained according to the pin information;
and the MCU reads the fault information of the fault pin through the SPI interface and executes a corresponding fault elimination strategy according to the fault information.
According to the application, the mixed video stream is decoded into the first video stream and the second video stream through the deserializer, the first video stream and the second video stream are output to the display, the display receives the first video stream and the second video stream and displays the first video stream and the second video stream, so that the mixed video stream containing the two video streams is separated, and the separated two different video streams are transmitted to the corresponding display partition of the display screen.
Drawings
FIG. 1 is a schematic view of an embodiment of a vehicle-mounted display screen according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a connection of a partitioned display system of the vehicle-mounted display screen of the present application;
fig. 3 is a flowchart of a first embodiment of a partition display method for a vehicle-mounted display screen according to the present application.
The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
Referring to fig. 1, a schematic structural diagram of an embodiment of the vehicle-mounted display screen of the embodiment of the present application shown in fig. 1 is shown.
In this embodiment, the vehicle-mounted display screen includes: the deserializer and the display are connected in sequence;
the deserializer is used for decoding the mixed video stream into a first video stream and a second video stream and outputting the first video stream and the second video stream to the display;
the display is configured to receive the first video stream and the second video stream, and display the first video stream and the second video stream.
The display screen comprises a first display chip and a second display chip, the first display chip and the second display chip divide the display screen into a first display area and a second display area, the first display chip divides the display screen into a first display area, and the second display chip divides the display screen into a second display area;
the first display chip is used for receiving the first video stream output by the deserializer and displaying the first video stream in the first display area;
the second display chip is configured to receive the second video stream output by the deserializer, and display the second video stream in the second display area.
The vehicle-mounted display screen is connected with the domain control host, the domain control host can conduct mixing processing on video streams needing to be displayed in a partitioned mode to obtain mixed video streams, the mixed video streams are transmitted to the vehicle-mounted display screen to be displayed, the mixed video streams are obtained by mixing two video stream data needing to be displayed according to an old staggered mode, the two video streams are evenly distributed in the mixed video streams, and video display quality of partitioned display is guaranteed.
It will be appreciated that in a vehicle display screen, a Deserializer, an MCU, and a high resolution display screen are included, where two TDDi chips are included in the high resolution display screen, the TDDi chips being used to support the high resolution of the display screen. In the high-resolution display screen, two TDDi chips are respectively represented by a TDDi-A and a TDDi-B, namely a first display chip and a second display chip, wherein the TDDi-A and the TDDi-B are respectively arranged in the high-resolution display screen, the high-resolution display screen can be divided into a display A area and a display B area, the TDDi-A is used for controlling the display A area, the TDDi-B is used for controlling the display B area, and the display A area and the display B area respectively correspond to the first display area and the second display area. The deserializer is connected with the TDDi-A, TDDi-B through ports of LVDS respectively and is used for transmitting video streams to be displayed to the display A area and the display B area. The deserializer is connected with TDDi-A through LVDSport0, and the deserializer is connected with TDDi-B through LVDSport 1. MCU in the vehicle-mounted display screen is also connected with the deserializer through I2C, and MCU is connected with the high-resolution display screen through SPI.
In a specific implementation, when the deserializer in the vehicle-mounted display screen receives a mixed video stream transmitted by the domain control host, the deserializer can separate the received mixed video stream and the odd-even staggered video stream in the mixed video stream according to the odd-even characteristic to obtain a first video stream and a second video stream, respectively transmit the first video stream to the TDDi-A chip through LVDSport0, display the video content of the first video stream in the display A area, transmit the first video stream to the TDDi-B chip through LVDSport1, and display the video content of the second video stream in the display B area.
According to the embodiment, the mixed video stream received by the vehicle-mounted display screen is split by the deserializer of the vehicle-mounted display screen to obtain two video streams for partition display, the obtained two video streams are respectively input into a TDDi-A chip and a TDDi-B chip of the high-resolution display screen through LVDS ports, and videos of two contents are respectively displayed in a display area A and a display area B. Compared with the prior art, the method and the device have the advantages that the video can be displayed in the partition mode without adding additional components, and the hardware wave rate is greatly reduced under the condition that the partition display function is not affected.
The embodiment of the application provides a vehicle-mounted display screen partition display system, and referring to fig. 2, fig. 2 is a connection schematic diagram of the vehicle-mounted display screen partition display system.
In this embodiment, the vehicle-mounted display screen partition display system includes a domain controller and a vehicle-mounted display screen that are sequentially connected, where the domain controller includes an SOC and a serializer that are sequentially connected;
the SOC is used for generating a mixed video stream according to the content to be displayed and outputting the mixed video stream to the serializer;
the serializer is configured to output the received mixed video stream to the deserializer.
The vehicle-mounted display screen partition display system further comprises an MCU, wherein the MCU is respectively connected with the deserializer and the display screen;
the MCU is used for receiving the pin signal states of the deserializer and the display.
In a specific implementation, the domain controller is connected with the vehicle-mounted display screen, and can transmit the mixed video stream in the domain controller to the vehicle-mounted display screen for display. In the domain controller, an SOC and a serializer are included. When the domain controller receives an instruction for carrying out partition display, the serializer can mix two video streams which are required to be subjected to partition display, so as to obtain a video in a left-right odd-even pixel staggered mode, and output the obtained video in the left-right odd-even pixel staggered mode to the vehicle-mounted display screen. If the SOC used in the domain controller also has the capability of directly outputting the left and right partial pictures as the parity interleaved stream, the SOC can process the video stream to be displayed in the partition. When the domain controller carries out the corresponding processing of the partitioned video, the SOC in the domain controller can be detected at first to judge whether the capability of outputting a left picture and a right picture into a parity staggered flow is provided, when the current SOC has the capability, the video of the output left and right parity pixel staggered mode can be directly output to the serializer, and then the video of the left and right parity pixel staggered mode is output to the vehicle-mounted display screen through the serializer; if the current SOC does not have the capability, the SOC can output the video to be processed to the serializer, the serializer processes the video to obtain the video in the left and right odd-even pixel staggered mode, and the video is output to a vehicle-mounted display screen connected with the serializer.
The vehicle-mounted display screen is connected with the domain controller through the deserializer, so that the output of the domain controller received by the deserializer is a video in a left and right odd-even pixel staggered mode, the deserializer has the capability of respectively outputting the input video in the left and right odd-even pixel staggered mode to two portLVDS, and therefore when the deserializer receives the video in the left and right odd-even pixel staggered mode, the video in the left and right odd-even pixel staggered mode can be directly separated, and the video is output to a TDDi-A chip and a TDDi-B chip in the high-resolution display screen in a parity mode, and the video is displayed in a split screen mode in a display A area and a display B area corresponding to the TDDi-A chip and the TDDi-B chip.
For example, the current vehicle-mounted display screen has a resolution of 3840×720, and two TDDI chips are built in the vehicle-mounted display screen with a resolution of 3840×720, so that a display area can be divided according to a ratio of 1:1, and the display area with a resolution of 3840×720 is divided into two display areas, so that a display area with a resolution of 1920×720 and a display area with a resolution of 1920×720 are obtained. The master serializer and deserializer are configured according to the Dual-View splitter mode, firstly, video is converted into a pixel staggered format picture with the resolution of 3840×720, the pixel staggered format picture is consistent with the resolution of the whole display area of the display screen, and then, the deserializer is configured to output in the Dual mode by using the OLDI output. The interlaced picture content with the resolution of 3840×720 pixels output by the serializer is alternately displayed on the two LVDS ports by pixel interlacing, which is equivalent to the restoration of the left and right parts of the original picture.
The vehicle-mounted display screen also comprises an MCU (micro control Unit), the MCU is connected with the deserializer and the display screen in the vehicle-mounted display screen, the MCU stores configuration parameters of LVDS video output of the deserializer chip, and in order to write video configuration into the deserializer chip, the display screen main controller MCU writes the video configuration into the deserializer by controlling reset signals of the deserializer to communicate with I2C, and fault information of the deserializer can be obtained through the I2C; meanwhile, the MCU and the high-resolution display screen are connected through the SPI interface, a fault detection pin is arranged in the display A area and the display B area respectively, and when the MCU at the display screen end detects that the fault detection pin is at a low level, specific fault information can be read through the SPI interface. Such fault information may help the MCU distinguish between fault types that display zones a and B. These faults may be communicated to the host through the I2C of the deserializer.
In the embodiment, the SOC or the serializer in the domain controller of the vehicle-mounted display screen partition display system performs parity interleaving processing on the display video stream to obtain a parity interleaved video stream, the obtained parity interleaved video stream is output to the deserializer, the deserializer transmits the parity interleaved video to the display area a and the display area B respectively, meanwhile, the MCU in the vehicle-mounted display screen can perform configuration and fault detection on the deserializer, and the MCU can also determine fault information of the display partition for the fault detection pins of the display area a and the display area B, so that the fault information is transmitted to the outside, and the maintenance of the system is facilitated.
The embodiment of the application provides a partition display method of a vehicle-mounted display screen, and referring to fig. 3, fig. 3 is a flow chart of a first embodiment of the partition display method of the vehicle-mounted display screen.
In this embodiment, the method for displaying the vehicle-mounted display screen in a partitioned manner is applied to the system for displaying the vehicle-mounted display screen in a partitioned manner, and the system for displaying the vehicle-mounted display screen in a partitioned manner includes: the deserializer and the display are connected in sequence;
the vehicle-mounted display screen partition display method comprises the following steps:
step S10: the deserializer decodes the mixed video stream into a first video stream and a second video stream, and outputs the first video stream and the second video stream to the display;
step S20: the display receives the first video stream and the second video stream and displays the first video stream and the second video stream.
In a specific implementation, the vehicle-mounted display screen comprises a Deserializer, an MCU and a high-resolution display screen, wherein the high-resolution display screen comprises two TDDi chips, and the TDDi chips are used for supporting the high resolution of the display screen. In the high-resolution display screen, two TDDi chips are respectively represented by a TDDi-A and a TDDi-B, namely a first display chip and a second display chip, wherein the TDDi-A and the TDDi-B are respectively arranged in the high-resolution display screen, the high-resolution display screen can be divided into a display A area and a display B area, the TDDi-A is used for controlling the display A area, the TDDi-B is used for controlling the display B area, and the display A area and the display B area respectively correspond to the first display area and the second display area. The deserializer is connected with the TDDi-A, TDDi-B through ports of LVDS respectively and is used for transmitting video streams to be displayed to the display A area and the display B area. The deserializer is connected with TDDi-A through LVDSport0, and the deserializer is connected with TDDi-B through LVDSport 1. MCU in the vehicle-mounted display screen is also connected with the deserializer through I2C, and MCU is connected with the high-resolution display screen through SPI. The deserializer, after decoding the mixed stream into the first video stream and the second video stream, is capable of receiving the first video stream and the second video stream and simultaneously displaying on the display.
Further, the display further includes a first display chip and a second display chip, the display receives the first video stream and the second video stream and displays the first video stream and the second video stream, including;
the first display chip receives a first video stream transmitted by the deserializer, obtains first display content according to the first video stream, and displays the first display content in a first display area of the display;
and the second display chip receives the second video stream transmitted by the deserializer, obtains second display content according to the second video stream, and displays the second display content in a second display area of the display.
In a specific implementation, when the deserializer in the vehicle-mounted display screen receives a mixed video stream transmitted by the domain control host, the deserializer can separate the received mixed video stream and the odd-even staggered video stream in the mixed video stream according to odd-even characteristics to obtain a first video stream and a second video stream, respectively transmit the first video stream to the TDDi-A chip through LVDSport0, display the video content of the first video stream in the display A area, transmit the first video stream to the TDDi-B chip through LVDSport1, display the video content of the second video stream in the display B area, and realize that the mixed video stream is displayed on the vehicle-mounted display screen.
Further, before the deserializer decodes the mixed video stream into a first video stream and a second video stream and outputs the first video stream and the second video stream to the display, the deserializer further includes:
the SOC divides the content to be displayed into odd-even staggered display content and outputs the odd-even staggered display content to a serializer;
the serializer receives the display content of the odd-even interleaving, separates the display content of the odd-even interleaving to obtain a first video stream and a second video stream, and outputs the first video stream and the second video stream to the deserializer as mixed video streams.
In a specific implementation, the serializer can mix two video streams to be displayed in a partitioned manner to obtain a video in a left-right odd-even pixel staggered mode, and output the obtained video in the left-right odd-even pixel staggered mode to the vehicle-mounted display screen. If the SOC used in the domain controller also has the capability of directly outputting the left and right partial pictures as the parity interleaved stream, the SOC can process the video stream to be displayed in the partition. When the domain controller carries out the corresponding processing of the partitioned video, the SOC in the domain controller can be detected at first to judge whether the capability of outputting a left picture and a right picture into a parity staggered flow is provided, when the current SOC has the capability, the video of the output left and right parity pixel staggered mode can be directly output to the serializer, and then the video of the left and right parity pixel staggered mode is output to the vehicle-mounted display screen through the serializer; if the current SOC does not have the capability, the SOC can output the video to be processed to the serializer, the serializer processes the video to obtain the video in the left and right odd-even pixel staggered mode, and the video is output to the deserializer connected with the serializer.
Further, the deserializer decodes a mixed video stream into a first video stream and a second video stream, and outputs the first video stream and the second video stream to the display, comprising:
the deserializer receives a mixed video stream obtained by the serializer according to the SOC and the content to be displayed;
the deserializer decodes the mixed video stream to obtain the first video stream and the second video stream;
the deserializer outputs to the display in the DUAL mode of OLDI output.
In a specific implementation, for example, a display screen with 3840×720 resolution has two TDDI chips, and the display area is set according to 1: the scale of 1 is divided into two display areas with different resolutions, namely, the resolution of a display area A is 1920 multiplied by 720, and the resolution of a display area B is 1920 multiplied by 720. The master serializer and deserializer are configured according to the Dual-View splitter mode, firstly convert video into a 3840×720 resolution pixel interleaved format picture, and then are configured at the deserializer end to be output in the Dual mode using OLDI output. The pixel staggered picture content of 3840×720 output by the serializer is alternately displayed on the two LVDS ports, which is equivalent to the restoration of the left and right parts of the original picture.
Further, the vehicle-mounted display screen comprises an MCU, the MCU is respectively connected with the deserializer and the display, and the vehicle-mounted display screen partition display method further comprises the following steps:
and the MCU establishes communication with the deserializer through the I2C, controls a reset signal of the deserializer, and writes configuration parameters stored and output by LVDS video in the MCU into the deserializer.
In a specific implementation, the configuration parameters of the LVDS video output of the deserializer chip are stored in the MCU program. In order to write the video configuration into the deserializer chip, the display screen main controller MCU will complete the operation by controlling the reset signal of the deserializer and the I2C communication. In addition, the MCU can also read the abnormal error information of the deserializer and the screen through the I2C interface.
Further, the method for displaying the vehicle-mounted display screen in a partitioned manner further comprises the following steps:
the MCU reads a LOCK signal of the deserializer, and generates error information of the deserializer when the LOCK signal is at a low level;
the MCU reads the pin information of the display screen, and when the pin information of the display is at a low level, a fault pin is obtained according to the pin information;
and the MCU reads the fault information of the fault pin through the SPI interface and executes a corresponding fault elimination strategy according to the fault information.
In a specific implementation, in order to perform fault diagnosis, the display screen MCU will detect a LOCK signal of the deserializer. This procedure is used to determine the connection state between the deserializer and the serializer. If the LOCK pin of the deserializer is low, it is indicated that the hardware connection between the deserializer and the serializer has been broken. A fault detection pin is arranged in each of the A area and the B area of the display screen. When the MCU at the display screen end detects that the fault detection pin is at a low level, specific fault information can be read through the SPI interface. Such fault information may help the MCU distinguish between fault types that display zones a and B. These faults may be communicated to the host through the I2C of the deserializer.
In the embodiment, the deserializer decodes the mixed video stream into the first video stream and the second video stream, and outputs the first video stream and the second video stream to the display, and the display receives the first video stream and the second video stream and displays the first video stream and the second video stream, so that the mixed video stream containing the two video streams is separated, and the separated two different video streams are transmitted to corresponding display partitions of the display screen.
It should be understood that the foregoing is illustrative only and is not limiting, and that in specific applications, those skilled in the art may set the application as desired, and the application is not limited thereto.
It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily occurring in sequence, but may be performed alternately or alternately with other steps or at least a portion of the other steps or stages.
It should be noted that the above-described working procedure is merely illustrative, and does not limit the scope of the present application, and in practical application, a person skilled in the art may select part or all of them according to actual needs to achieve the purpose of the embodiment, which is not limited herein.
Furthermore, it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of embodiments, it will be clear to a person skilled in the art that the above embodiment method may be implemented by means of software plus a necessary general hardware platform, but may of course also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk) and comprising several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present application.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the application, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
1. A vehicle-mounted display screen, characterized in that the vehicle-mounted display screen comprises: the deserializer and the display are connected in sequence;
the deserializer is used for decoding the mixed video stream into a first video stream and a second video stream and outputting the first video stream and the second video stream to the display;
the display is configured to receive the first video stream and the second video stream, and display the first video stream and the second video stream.
2. The vehicle-mounted display screen of claim 1, wherein the display screen comprises a first display chip and a second display chip, the first display chip and the second display chip divide the display screen into a first display area and a second display area, the first display chip divides the display screen into a first display area, and the second display chip divides the display screen into a second display area;
the first display chip is used for receiving the first video stream output by the deserializer and displaying the first video stream in the first display area;
the second display chip is configured to receive the second video stream output by the deserializer, and display the second video stream in the second display area.
3. A vehicle-mounted display screen partition display system, which is characterized by comprising a domain controller and a vehicle-mounted display screen as claimed in claim 1 or 2, wherein the domain controller is sequentially connected, and the domain controller comprises an SOC and a serializer which are sequentially connected;
the SOC is used for generating a mixed video stream according to the content to be displayed and outputting the mixed video stream to the serializer;
the serializer is configured to output the received mixed video stream to the deserializer.
4. The vehicle-mounted display screen partition display system of claim 3, further comprising an MCU, wherein the MCU is respectively connected with the deserializer and the display screen;
the MCU is used for receiving the pin signal states of the deserializer and the display.
5. A vehicle-mounted display screen partition display method, wherein the vehicle-mounted display screen partition display method is applied to the vehicle-mounted display screen partition display system according to claim 3, and the vehicle-mounted display screen partition display system comprises: the deserializer and the display are connected in sequence;
the vehicle-mounted display screen partition display method comprises the following steps:
the deserializer decodes the mixed video stream into a first video stream and a second video stream, and outputs the first video stream and the second video stream to the display;
the display receives the first video stream and the second video stream and displays the first video stream and the second video stream.
6. The method of claim 5, wherein the display further comprises a first display chip and a second display chip, the display receiving the first video stream and the second video stream and displaying the first video stream and the second video stream, comprising;
the first display chip receives a first video stream transmitted by the deserializer, obtains first display content according to the first video stream, and displays the first display content in a first display area of the display;
and the second display chip receives the second video stream transmitted by the deserializer, obtains second display content according to the second video stream, and displays the second display content in a second display area of the display.
7. The method of claim 5, wherein the deserializer decodes a mixed video stream into a first video stream and a second video stream, and before outputting the first video stream and the second video stream to the display, further comprising:
the SOC divides the content to be displayed into odd-even staggered display content and outputs the odd-even staggered display content to a serializer;
the serializer receives the display content of the odd-even interleaving, separates the display content of the odd-even interleaving to obtain a first video stream and a second video stream, and outputs the first video stream and the second video stream to the deserializer as mixed video streams.
8. The method of claim 7, wherein the deserializer decodes a mixed video stream into a first video stream and a second video stream, and outputs the first video stream and the second video stream to the display, comprising:
the deserializer receives a mixed video stream obtained by the serializer according to the SOC and the content to be displayed;
the deserializer decodes the mixed video stream to obtain the first video stream and the second video stream;
the deserializer outputs to the display in the DUAL mode of OLDI output.
9. The method of claim 5, wherein the vehicle-mounted display screen comprises an MCU connected to the deserializer and the display, respectively, the vehicle-mounted display screen zone display method further comprising:
and the MCU establishes communication with the deserializer through the I2C, controls a reset signal of the deserializer, and writes configuration parameters stored and output by LVDS video in the MCU into the deserializer.
10. The method of any of claims 5-9, wherein the on-board display screen zone display method further comprises:
the MCU reads a LOCK signal of the deserializer, and generates error information of the deserializer when the LOCK signal is at a low level;
the MCU reads the pin information of the display screen, and when the pin information of the display is at a low level, a fault pin is obtained according to the pin information;
and the MCU reads the fault information of the fault pin through the SPI interface and executes a corresponding fault elimination strategy according to the fault information.
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