CN115174830B - Single-double-channel compatible screen driving method and system - Google Patents
Single-double-channel compatible screen driving method and system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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Abstract
The invention discloses a single-double-channel compatible screen driving method and a system, wherein in the system, a serializer is connected with a first deserializer through a differential converter and is directly connected with a second deserializer, and the system is used for outputting a first group of LVDS video signals in two groups of LVDS video signals to the differential converter and outputting a second group of LVDS video signals in two groups of LVDS video signals to the second deserializer; the differential converter is used for controlling a transmission path of the first group of LVDS video signals so as to transmit the first group of LVDS video signals to the first deserializer for analysis or to the second deserializer for analysis; the first deserializer is connected with the first display screen, and is used for receiving the first group of LVDS video signals from the differential converter for analysis and transmitting the first group of LVDS video signals to the first display screen for display; the second deserializer is connected with the second display screen, is used for analyzing the two groups of LVDS video signals and transmitting the two groups of LVDS video signals to the second display screen for synchronous display.
Description
Technical Field
The application relates to the technical field of vehicles, in particular to a single-circuit and double-circuit compatible screen driving method and system.
Background
In the development design of a vehicle, the related hardware architecture of the central controller is generally fixed, and can be used in the development design, but the vehicle-mounted display screen often shows development trends of large screen, high definition, interactivity, multi-screen, multi-morphology and the like.
In order to adapt to the development trend of the vehicle-mounted display screen, in the prior art, the hardware architecture design is generally changed at the initial stage of design to uniformly adapt to the vehicle-mounted display screen. Once the vehicle is produced in a floor mode, the matching relation between the hardware architecture and the vehicle-mounted display screen is fixed and cannot be changed.
However, in practical applications, the display requirements of the vehicle-mounted display screen are continuously changed. For example, when the vehicle-mounted display screen is a dual-screen display, the resolutions of the two display screens are the same, and display requirements of different resolutions may be generated for different display screens.
For this display requirement, existing practices can only restart the vehicle development design or alter the hardware architecture design. And the redevelopment of the design or the redevelopment of the hardware architecture design increases the development cost and prolongs the development period.
Therefore, how to meet the display requirements of different resolutions of the dual-screen on the basis of unchanged original hardware architecture is a problem to be solved in the present day.
Disclosure of Invention
The invention provides a single-circuit and double-circuit compatible screen driving method and system, which are used for solving or partially solving the technical problem that the prior art cannot meet the display requirements of different resolutions of a double screen on the basis of unchanged original hardware architecture.
To solve the above technical problem, in a first aspect of the present invention, a single-dual compatible screen driving system is disclosed, the system comprising: the device comprises a serializer, a differential converter, a first deserializer, a second deserializer, a first display screen and a second display screen; wherein,
The serializer is connected with the first deserializer through the differential converter and is directly connected with the second deserializer; the deserializer is used for outputting a first group of LVDS video signals in the two groups of LVDS video signals to the differential converter and outputting a second group of LVDS video signals in the two groups of LVDS video signals to the second deserializer;
The differential converter is connected among the serializer, the first deserializer and the second deserializer and is used for controlling the transmission path of the first group of LVDS video signals so as to transmit the first group of LVDS video signals to the first deserializer for analysis or to the second deserializer for analysis;
The first deserializer is connected with the first display screen, and is used for receiving the first group of LVDS video signals from the differential converter for analysis and transmitting the first group of LVDS video signals to the first display screen for display;
The second deserializer is connected with the second display screen, and is used for directly receiving the second group of LVDS video signals from the deserializer for analysis and transmitting the second group of LVDS video signals to the second display screen for display; or when the second group of LVDS video signals are received, the first group of LVDS video signals are received through the differential converter, the two groups of LVDS video signals are analyzed, and the two groups of LVDS video signals are transmitted to the second display screen for synchronous display.
Preferably, the differential converter comprises an input port, a first output port, a second output port and a digital control component;
The input port is connected with the serializer, the first output port is connected with the first deserializer, the second output port is connected with the second deserializer, and the digital control component is positioned on a connecting line between the input port and the first output port and a connecting line between the input port and the second output port; wherein,
A digital control component for controlling an output path of the first set of LVDS video signals in the differential converter;
when the digital control component has a low level control signal, the first group of LVDS video signals are output to the first deserializer through the first output port;
when the digital control component has a high level control signal, the first set of LVDS video signals is output to the second deserializer by the second output port.
Preferably, when the first group of LVDS video signals is output from the first output port to the first deserializer, the second output port is empty;
the first output port is empty when the first set of LVDS video signals is output from the second output port to the second deserializer.
Preferably, the differential converter is connected between the serializer, the first deserializer and the second deserializer by a high-speed data connector HSD.
Preferably, the serializer is configured at the central controller, the first deserializer is configured at the first screen assembly, and the second deserializer is configured at the second screen assembly.
In a second aspect of the present invention, a single-dual compatible screen driving method is disclosed, the method is applied to the single-dual compatible screen driving system according to any one of the above technical solutions, and the method includes:
Receiving a screen display request;
If the screen display request is a two-way display request, outputting a first group of LVDS video signals in two ways of LVDS video signals to a differential converter through a serializer, transmitting the first group of LVDS video signals to a first deserializer for analysis through the differential converter, and transmitting the first group of LVDS video signals to the first display screen for display after the first deserializer analyzes; outputting a second group of LVDS video signals in the two paths of LVDS video signals to the second deserializer for analysis through the deserializer, and transmitting the second group of LVDS video signals to the second display screen for display after the second deserializer analyzes;
If the screen display request is a single-channel display request, outputting the first group of LVDS video signals to a differential converter through a serializer, transmitting the first group of LVDS video signals to a second deserializer for analysis through the differential converter, and outputting the second group of LVDS video signals to the second deserializer for analysis through the serializer; and after the second deserializer analyzes the two paths of LVDS video signals, the two paths of LVDS video signals are transmitted to the second display screen for synchronous display.
Preferably, the differential converter includes a digital control component for controlling an output path of the first group of LVDS video signals in the differential converter;
The transmitting, by the differential converter, the first set of LVDS video signals to a first deserializer for parsing, specifically includes:
and inputting a low-level control signal into the digital control component, so that the first group of LVDS video signals are transmitted to the first deserializer for analysis.
Preferably, the transmitting, by the differential converter, the first set of LVDS video signals to a second deserializer for parsing specifically includes:
and inputting a high-level control signal into the digital control component, so that the first group of LVDS video signals are transmitted to the second deserializer for analysis.
In a third aspect of the present invention, a computer-readable storage medium is disclosed, on which a computer program is stored which, when being executed by a processor, implements the steps of the above-described method.
In a fourth aspect of the invention, a vehicle is disclosed comprising a single-dual compatible screen drive system according to any of the above aspects.
Through one or more technical schemes of the invention, the invention has the following beneficial effects or advantages:
The invention discloses a screen driving method and a system compatible with single and double paths, wherein the system comprises the following steps: the device comprises a serializer, a differential converter, a first deserializer, a second deserializer, a first display screen and a second display screen; wherein the serializer is connected with the first deserializer and the second deserializer through the differential converter, and the second deserializer is directly connected with the first display screen, and the second deserializer is connected with the second display screen. In the implementation, two groups of LVDS video signals are output through the serializer, a second group of LVDS video signals in the two groups of LVDS video signals are directly transmitted to the second deserializer for analysis, and the first group of LVDS video signals are selectively transmitted to the first deserializer or the second deserializer for analysis through the differential converter, so that the two groups of LVDS video signals are respectively displayed on two display screens, and the two screens respectively support the screen display requirement of driving the same resolution (for example, both resolution are 2K); or the group LVDS video signals are synchronously displayed on a second display screen, and the resolution supported by a single screen of the second display screen is higher than that supported by a double screen (for example, the resolution supported by the single screen is 4K), so that the screen display requirement of supporting high resolution by the single screen is met. The design expands the compatibility of the original hardware architecture, the original hardware architecture is not required to be changed even after the vehicle is produced in the ground, and the display screen can be driven to display according to different resolutions only by switching a single path or a double path through the differential converter, so that the purpose of meeting the display requirements of the double screens with different resolutions on the basis of unchanged original hardware architecture is achieved, and the hardware development cost and the hardware development period can be effectively saved.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures.
In the drawings:
FIG. 1 shows a hardware schematic of a single dual compatible screen drive system according to one embodiment of the invention;
FIG. 2 illustrates a control logic schematic of a differential converter according to one embodiment of the invention;
Fig. 3 shows a schematic diagram of a single-dual compatible screen driving method according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The embodiment of the invention discloses a single-circuit and double-circuit compatible screen driving system, which is designed according to the framework of the screen driving system in the early design stage, and can realize the purpose of meeting the display requirements of different resolutions of a double screen on the basis of unchanged original hardware framework by mutually matching a serializer 4, a differential converter 5, a first deserializer 6 and a second deserializer 7 after the vehicle is produced in a floor mode, and can effectively save the development cost and the development period of hardware.
The hardware structure of the single-dual compatible screen driving system will be specifically described with reference to fig. 1. The system comprises: the device comprises a serializer 4, a differential converter 5, a first deserializer 6, a second deserializer 7, a first display screen 8 and a second display screen 9. In fig. 1, taking a serializer chip MAX96781 of the central controller 1 and a deserializer chip MAX96772 of the screen end as an example, after implementing according to the following principle, the implementation can realize a single-path bandwidth of 6Gbps, a double-path bandwidth of 12Gbps, and the double-path driving can realize more than 1.75 times of the single-path driving bandwidth.
The components of the system are described in detail below.
The serializer 4 is connected to the first deserializer 6 through the differential converter 5, and directly to the second deserializer 7.
The serializer 4 is disposed at the end of the central controller 1 and is controlled by the central controller 1 to output. The serializer 4 may employ a MAX96781 chip, but is not limited thereto.
The serializer 4 is configured to output two sets of LVDS (Low Voltage DIFFERENTIAL SIGNALING) video signals, and the transmission mode is GMSL2 STP mode. Wherein a first set of LVDS video signals (illustrated as LVDS1 in fig. 1) of the two sets of LVDS video signals is transmitted to the differential converter 5, and a second set of LVDS video signals (illustrated as LVDS2 in fig. 1) of the two sets of LVDS video signals is transmitted to the second deserializer 7.
The differential converter 5 is connected among the serializer 4, the first deserializer 6 and the second deserializer 7, and is used for controlling the transmission path of the first group of LVDS video signals so as to transmit the first group of LVDS video signals to the first deserializer 6 for analysis or to the second deserializer 7 for analysis.
In a specific implementation, the differential converter 5 includes an input port 51, a first output port a, a second output port B, and a digital control component 52. The input port 51, the first output port a, and the second output port B each have "+", "-" poles.
The input port 51 is connected to the serializer 4, the first output port a is connected to the first deserializer 6, and the second output port B is connected to the second deserializer 7.
Furthermore, the digital control assembly 52 is in the connection between the input port 51 and the first output port a, and in the connection between the input port 51 and the second output port B; wherein the digital control component 52 is configured to control an output path of the first group of LVDS video signals in the differential converter 5.
Referring to fig. 2, a control logic diagram of the differential converter 5 is shown.
A first set of LVDS video signals is input from the input port 51, and the digital control component 52 receives the high-low control level controlled by the central controller 1 through the "SEL" signal pin. When the digital control assembly 52 has a low level control signal, namely: sel=logic Low, and the first group of LVDS video signals is output from the first output port a to the first deserializer 6. When the digital control assembly 52 has a high level control signal, namely: sel=logic High, and the first group of LVDS video signals is output from the second output port B to the second deserializer 7.
It should be noted that the first output port a and the second output port B are alternative outputs, and cannot be output simultaneously. When the first group of LVDS video signals is output from the first output port a to the first deserializer 6, the second output port B is left empty. When the first group of LVDS video signals is output from the second output port B to the second deserializer 7, the first output port a is left empty.
In the actual connection process, the differential converter 5 is connected between the serializer 4, the first deserializer 6 and the second deserializer 7 through the high-speed data connector HSD. And connected as an HSD harness by Dacar636 shielded cable, but not by way of limitation. Specifically, the HSD has a combination of 4+2 wires, and 4 twisted pair shielded cables connected among the differential converter 5, the serializer 4, the first deserializer 6 and the second deserializer 7, and is schematically shown in fig. 1 as follows: HSD1, HSD2, HSD3, HSD4 for transmitting a first set of LVDS video signals and a second set of LVDS video signals. 2 cables (not shown) for power/ground.
Further, the first deserializer 6 and the second deserializer 7 are respectively disposed on the respective screen assemblies. Specifically, the first deserializer 6 is disposed in the first screen assembly 2, and the second deserializer 7 is disposed in the second screen assembly 3. In addition, the first screen assembly 2 has a first display screen 8, and the first deserializer 6 is connected to the first display screen 8. The second screen assembly 3 is provided with a second display screen 9, and the second deserializer 7 is connected with the second display screen 9.
The first deserializer 6 is configured to receive the first set of LVDS video signals from the differential converter 5 for parsing, and transmit the first set of LVDS video signals to the first display screen 8 for display;
The second deserializer 7 is configured to directly receive the second set of LVDS video signals from the serializer 4, parse the second set of LVDS video signals, and transmit the second set of LVDS video signals to the second display 9 for display; or when receiving the second group of LVDS video signals, the differential converter 5 receives the first group of LVDS video signals, analyzes the two groups of LVDS video signals, and transmits the two groups of LVDS video signals to the second display screen 9 for synchronous display.
Specifically, the second set of LVDS video signals is used as the primary output signal and the first set of LVDS video signals is used as the compatible signal. If the single-screen high-definition display is needed, the first group of LVDS video signals are transmitted to the second deserializer 7 through the action of the differential converter 5, so that the second deserializer 7 analyzes the two groups of LVDS video signals, the second display screen 9 synchronously displays the two groups of LVDS video signals, the resolution of single-screen support driving is higher than that of double-screen support, and the screen display requirement of single-screen support high resolution is met. For example, the resolution supported by a single screen is 4K. If dual-screen display is required, the first group of LVDS video signals are transmitted to the first deserializer 6 through the action of the differential converter 5, so that the first deserializer 6 and the second deserializer 7 analyze the respective LVDS video signals, and the first display screen 8 and the second display screen 9 display the respective LVDS video signals, thereby enabling the dual-screen display to respectively support the screen display requirement of driving the same resolution. For example, dual screens each support the screen display requirement to drive a 2K (2560 x 1600) resolution.
If the single-path output supports the bandwidth of 6Gbps, the double-path output can support the bandwidth of 12Gbps, and the double-path output can realize more than 1.75 times of the single-path output bandwidth.
According to the embodiment, the compatibility of the original hardware architecture is expanded in the initial design stage, the original hardware architecture is not required to be changed even after the vehicle is produced in the ground, and the display screen can be driven to display according to different resolutions only by switching a single channel or a double channel through the differential converter, so that the purpose of meeting the display requirements of the double screens with different resolutions on the basis of unchanged original hardware architecture is achieved, and the hardware development cost and the hardware development period can be effectively saved.
Based on the same inventive concept, the following embodiments disclose a single-dual compatible screen driving method applied to the single-dual compatible screen driving system of the previous embodiments. Referring to fig. 3, the method includes the steps of:
Step 301, a screen display request is received.
The screen display request contains two types: two-way display request, one-way display request. The resolution required for a one-way display request is higher than that required for a two-way display request.
Upon receiving the screen display request, the display screen may be operated by the user directly or through other terminals, thereby obtaining the screen display request.
Step 302, if the screen display request is a two-way display request, outputting a first group of LVDS video signals in the two ways of LVDS video signals to a differential converter through a serializer, transmitting the first group of LVDS video signals to a first deserializer for analysis through the differential converter, and transmitting the first group of LVDS video signals to a first display screen for display after the first deserializer analyzes; and outputting a second group of LVDS video signals in the two paths of LVDS video signals to a second deserializer for analysis through the deserializer, and transmitting the second group of LVDS video signals to a second display screen for display after the second deserializer analyzes.
Specifically, if the screen display request is a two-way display request, the two-way display request indicates that the two-screen display is needed, and the serializer is controlled to output two-way LVDS video signals. The two LVDS video signals are identical.
The first group of LVDS video signals are transmitted to a first deserializer for analysis by a differential converter. Specifically, a low level control signal needs to be transmitted to the differential converter, and the differential converter transmits the first group of LVDS video signals to the first deserializer for analysis according to the low level control signal. Further, since the differential converter includes a digital control component, the digital control component is configured to control an output path of the first group of LVDS video signals in the differential converter. Thus, in an implementation, a low level control signal is input to the digital control component, thereby causing the first set of LVDS video signals to be transmitted to the first deserializer for parsing.
Further, after the first deserializer analyzes, the first group of LVDS video signals in the DP format are output to the first display screen for display.
The second group of LVDS video signals are directly transmitted to a second deserializer for analysis by the deserializer.
Further, after the second deserializer analyzes, the second group of LVDS video signals in the DP format are output to the second display screen for display.
Thus, the screen display requirements of the dual screens respectively supporting driving the same resolution are met.
Step 303, if the display request is a single-channel display request, outputting a first group of LVDS video signals to the differential converter through the serializer, transmitting the first group of LVDS video signals to the second deserializer through the differential converter for analysis, and outputting a second group of LVDS video signals to the second deserializer for analysis through the serializer; and after the second deserializer analyzes the two paths of LVDS video signals, the two paths of LVDS video signals are transmitted to a second display screen for synchronous display.
Specifically, since the second display screen is the main display, the first display screen is the compatible display. Therefore, if the screen display request is a single-channel display request, the second display screen is required to display, and the serializer is controlled to output two-channel LVDS video signals. The two LVDS video signals are identical.
The first group of LVDS video signals are transmitted to the second deserializer for analysis by the differential converter. Specifically, a low-high level control signal needs to be transmitted to the differential converter, and the differential converter transmits the first group of LVDS video signals to the second deserializer for analysis according to the high level control signal. Further, since the differential converter includes a digital control component, the digital control component is configured to control an output path of the first group of LVDS video signals in the differential converter. Thus, a high level control signal is input to the digital control component, causing the first set of LVDS video signals to be transmitted to the second deserializer for parsing. Thus, the second deserializer parses the two sets of LVDS video signals.
Further, after the second deserializer analyzes, two groups of LVDS video signals in the DP format are output to the second display screen for synchronous display.
Thus, the requirement of single screen support driving high-resolution screen display is met.
According to the description, the compatibility of the original hardware architecture is expanded in the initial design stage, the original hardware architecture is not required to be changed even after the vehicle is produced in a landing mode, and the display screen can be driven to display according to different resolutions only by switching one or two paths through the differential converter, so that the purpose of meeting the display requirements of the double screens with different resolutions on the basis of unchanged original hardware architecture is achieved, and the hardware development cost and the hardware development period can be effectively saved.
Based on the same inventive concept as in the previous embodiments, the embodiments of the present invention also disclose a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the steps of any of the methods described above.
Based on the same inventive concept as in the previous embodiments, the embodiments of the present invention also disclose a vehicle including the single-dual compatible screen driving system as described in any of the above embodiments.
Through one or more embodiments of the present invention, the present invention has the following benefits or advantages:
The invention discloses a screen driving method and a system compatible with single and double paths, wherein the system comprises the following steps: the device comprises a serializer, a differential converter, a first deserializer, a second deserializer, a first display screen and a second display screen; wherein the serializer is connected with the first deserializer and the second deserializer through the differential converter, and the second deserializer is directly connected with the first display screen, and the second deserializer is connected with the second display screen. In the implementation, two groups of LVDS video signals are output through the serializer, a second group of LVDS video signals in the two groups of LVDS video signals are directly transmitted to the second deserializer for analysis, and the first group of LVDS video signals are selectively transmitted to the first deserializer or the second deserializer for analysis through the differential converter, so that the two groups of LVDS video signals are respectively displayed on two display screens, and the two screens respectively support the screen display requirement of driving the same resolution (for example, both resolution are 2K); or the group LVDS video signals are synchronously displayed on a second display screen, and the resolution supported by a single screen of the second display screen is higher than that supported by a double screen (for example, the resolution supported by the single screen is 4K), so that the screen display requirement of supporting high resolution by the single screen is met. The design expands the compatibility of the original hardware architecture, the original hardware architecture is not required to be changed even after the vehicle is produced in the ground, and the display screen can be driven to display according to different resolutions only by switching a single path or a double path through the differential converter, so that the purpose of meeting the display requirements of the double screens with different resolutions on the basis of unchanged original hardware architecture is achieved, and the hardware development cost and the hardware development period can be effectively saved.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general-purpose systems may also be used with the teachings herein. The required structure for a construction of such a system is apparent from the description above. In addition, the present invention is not directed to any particular programming language. It will be appreciated that the teachings of the present invention described herein may be implemented in a variety of programming languages, and the above description of specific languages is provided for disclosure of enablement and best mode of the present invention.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be construed as reflecting the intention that: i.e., the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the apparatus of the embodiments may be adaptively changed and disposed in one or more apparatuses different from the embodiments. The modules or units or components of the embodiments may be combined into one module or unit or component and, furthermore, they may be divided into a plurality of sub-modules or sub-units or sub-components. Any combination of all features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or units of any method or apparatus so disclosed, may be used in combination, except insofar as at least some of such features and/or processes or units are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination.
Various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that some or all of the functions of some or all of the components in a gateway, proxy server, system according to embodiments of the present invention may be implemented in practice using a microprocessor or Digital Signal Processor (DSP). The present invention can also be implemented as an apparatus or device program (e.g., a computer program and a computer program product) for performing a portion or all of the methods described herein. Such a program embodying the present invention may be stored on a computer readable medium, or may have the form of one or more signals. Such signals may be downloaded from an internet website, provided on a carrier signal, or provided in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names.
Claims (10)
1. A single-dual compatible screen drive system, the system comprising: the device comprises a serializer, a differential converter, a first deserializer, a second deserializer, a first display screen and a second display screen; wherein,
The serializer is connected with the first deserializer through the differential converter and is directly connected with the second deserializer; the deserializer is used for outputting a first group of LVDS video signals in the two groups of LVDS video signals to the differential converter and outputting a second group of LVDS video signals in the two groups of LVDS video signals to the second deserializer;
The differential converter is connected among the serializer, the first deserializer and the second deserializer and is used for controlling the transmission path of the first group of LVDS video signals so as to transmit the first group of LVDS video signals to the first deserializer for analysis or to the second deserializer for analysis;
The first deserializer is connected with the first display screen, and is used for receiving the first group of LVDS video signals from the differential converter for analysis and transmitting the first group of LVDS video signals to the first display screen for display;
The second deserializer is connected with the second display screen, and is used for receiving the first group of LVDS video signals through the differential converter when receiving the second group of LVDS video signals, analyzing the two groups of LVDS video signals and transmitting the two groups of LVDS video signals to the second display screen for synchronous display.
2. The screen drive system of claim 1, wherein the differential converter comprises an input port, a first output port, a second output port, and a digital control assembly;
The input port is connected with the serializer, the first output port is connected with the first deserializer, the second output port is connected with the second deserializer, and the digital control component is positioned on a connecting line between the input port and the first output port and a connecting line between the input port and the second output port; wherein,
A digital control component for controlling an output path of the first set of LVDS video signals in the differential converter;
when the digital control component has a low level control signal, the first group of LVDS video signals are output to the first deserializer through the first output port;
when the digital control component has a high level control signal, the first set of LVDS video signals is output to the second deserializer by the second output port.
3. The screen drive system of claim 2,
When the first group of LVDS video signals are output to the first deserializer from the first output port, the second output port is empty;
the first output port is empty when the first set of LVDS video signals is output from the second output port to the second deserializer.
4. A screen drive system as claimed in any one of claims 1 to 3 wherein the differential converter is connected between the serializer, the first deserialiser and the second deserialiser by a high speed data connector HSD.
5. The screen drive system of claim 1, wherein the serializer is disposed at a central controller, the first deserializer is disposed at a first screen assembly, and the second deserializer is disposed at a second screen assembly.
6. A single-dual compatible screen driving method, wherein the method is applied to the single-dual compatible screen driving system according to any one of claims 1 to 5, the method comprising:
Receiving a screen display request;
If the screen display request is a two-way display request, outputting a first group of LVDS video signals in two ways of LVDS video signals to a differential converter through a serializer, transmitting the first group of LVDS video signals to a first deserializer for analysis through the differential converter, and transmitting the first group of LVDS video signals to the first display screen for display after the first deserializer analyzes; outputting a second group of LVDS video signals in the two paths of LVDS video signals to the second deserializer for analysis through the deserializer, and transmitting the second group of LVDS video signals to the second display screen for display after the second deserializer analyzes;
If the screen display request is a single-channel display request, outputting the first group of LVDS video signals to a differential converter through a serializer, transmitting the first group of LVDS video signals to a second deserializer for analysis through the differential converter, and outputting the second group of LVDS video signals to the second deserializer for analysis through the serializer; and after the second deserializer analyzes the two paths of LVDS video signals, the two paths of LVDS video signals are transmitted to the second display screen for synchronous display.
7. The method of claim 6, wherein the differential converter includes a digital control component therein for controlling an output path of the first set of LVDS video signals in the differential converter;
The transmitting, by the differential converter, the first set of LVDS video signals to a first deserializer for parsing, specifically includes:
and inputting a low-level control signal into the digital control component, so that the first group of LVDS video signals are transmitted to the first deserializer for analysis.
8. The method of claim 7, wherein the transmitting, by the differential converter, the first set of LVDS video signals to a second deserializer for parsing, specifically comprises:
and inputting a high-level control signal into the digital control component, so that the first group of LVDS video signals are transmitted to the second deserializer for analysis.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method according to any of claims 6-8.
10. A vehicle comprising a single-dual compatible screen drive system according to any one of claims 1 to 5.
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| CN212909837U (en) * | 2020-07-27 | 2021-04-06 | 延锋伟世通电子科技（南京）有限公司 | Vehicle-mounted entertainment hardware system compatible with serial-parallel video output and control circuit |
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| US7274361B2 (en) * | 2003-09-26 | 2007-09-25 | Mstar Semiconductor, Inc. | Display control device with multipurpose output driver |
| CN108320706A (en) * | 2018-04-24 | 2018-07-24 | 武汉华星光电半导体显示技术有限公司 | Driving device, driving method and display system |
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| CN212909837U (en) * | 2020-07-27 | 2021-04-06 | 延锋伟世通电子科技（南京）有限公司 | Vehicle-mounted entertainment hardware system compatible with serial-parallel video output and control circuit |
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