CN113377313B - Multi-screen multiplexing display device and method - Google Patents
Multi-screen multiplexing display device and method Download PDFInfo
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- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
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Abstract
A multi-screen multiplexing display device and method, the device includes: the control unit, the storage unit, the display processing unit and the display unit are connected in sequence; the display processing unit includes: the first data processor, the second data processor, the first data processor and the second data processor are connected through a multiplexer; the display unit includes: a first display connected to the first data processor, a second display connected to the second data processor; the control unit is used for storing data to be processed to the storage unit; the multiplexer is used for switching the second data processor to synchronously or asynchronously process the data to be processed with the first data processor according to the configuration information, and transmitting the processing result to the second display for displaying. The scheme of the invention can conveniently and flexibly meet the display requirements of users in different application scenes.
Description
Technical Field
The invention relates to the technical field of display, in particular to a multi-screen multiplexing display device and a multi-screen multiplexing display method.
Background
The multi-screen display technology refers to that different operating systems (such as common IOS, ANDROID, WIN7, WINDOWS XP, VISTA and the like) and different terminal devices (such as a smart phone, a smart tablet, a computer, a TV and the like) can be mutually compatible and cross-over operated, transmission of digital multimedia (such as high definition video, audio and pictures) contents is realized in a wireless network connection mode, the contents can be synchronously displayed on different screens, and a series of operations of control equipment and the like can be realized through an intelligent terminal.
The multi-screen display comprises multi-screen simultaneous display and multi-screen different display, wherein the multi-screen simultaneous display means that the display contents of a plurality of screens are completely consistent, and the screen operation and the user behavior are also completely consistent; the multi-screen display is that the display contents of a plurality of screens are inconsistent, and the screen operation and the user behavior can be different for each screen. The nature of multi-screen display is realized by software and multi-window division of an operating system, or by matching with multiple hardware such as a DPU (Data Processing Unit). In the prior art, different hardware needs to be matched for multi-screen simultaneous display and multi-screen separate display, only one display mode can be served, the two modes cannot be compatible, corresponding display architectures need to be matched respectively according to different display scene requirements of users, the cost is high, the efficiency is low, and the commercial development is not facilitated.
Disclosure of Invention
The embodiment of the invention provides a multi-screen multiplexing display device and method, which are used for conveniently and flexibly meeting the display requirements of users in different application scenes.
Therefore, the embodiment of the invention provides the following technical scheme:
a multi-screen multiplexed display device, the device comprising: the control unit, the storage unit, the display processing unit and the display unit are connected in sequence;
the display processing unit includes: the first data processor, the second data processor, the first data processor and the second data processor are connected through a multiplexer;
the display unit includes: a first display connected to the first data processor, a second display connected to the second data processor;
the control unit is used for storing data to be processed to the storage unit;
the first data processor is used for extracting data to be processed from the storage unit for processing and transmitting a processing result to the first display for displaying;
and the multiplexer is used for switching the second data processor to synchronously or asynchronously process the data to be processed with the first data processor according to configuration information and transmitting a processing result to the second display for displaying.
Optionally, the multiplexer is specifically configured to switch the second data processor to process the to-be-processed data synchronously with the first data processor when the second data processor is configured as a main processor, and switch the second data processor to process the to-be-processed data asynchronously with the first data processor when the second data processor is configured as a coprocessor.
Optionally, the multiplexer has a signal synchronization register; the multiplexer determines whether the second data processor is acting as a master processor or as a co-processor according to the value of the signal synchronization register.
Optionally, the multiplexer further has a mode configuration register; the multiplexer determines a path mode according to the value of the mode configuration register, and disconnects the second data processor from the first data processor in a single path mode; and when the double-channel mode is adopted, the second data processor is connected with the first data processor.
Optionally, the control unit comprises any one or more of: GSP, GPU and CPU.
Optionally, the first data processor is connected to the first display through a first MIPI interface, and the second data module is connected to the second display through a second MIPI interface.
Optionally, a first display stream compression module is further included between the first data processor and the first MIPI interface, and a second display stream compression module is further included between the second data processor and the first MIPI interface.
Optionally, the storage unit comprises any one or more of the following: RAM, SDRAM, DDR.
A multi-screen multiplexing display method, the method comprising:
providing a multiplexer between the first data processor and the second data processor;
configuring a signal synchronization mode, wherein the signal synchronization mode comprises a synchronous signal processing mode and an asynchronous signal processing mode;
controlling, by the multiplexer, a working mode of the second data processor according to the signal synchronization pattern, specifically including:
if the signal synchronization mode is a synchronization signal processing mode, the second data processor and the first data processor synchronously process data to be processed, and processing results are respectively transmitted to a first display and a second display for displaying;
and if the signal synchronous mode is an asynchronous signal processing mode, the data to be processed is asynchronously processed by the second data processor and the first data processor, and the processing results are respectively transmitted to the first display and the second display for displaying.
Optionally, the method further comprises:
configuring a channel mode, wherein the channel mode comprises a single channel mode and a double channel mode;
controlling, by the multiplexer, the connection of the second data processor according to the pass mode, specifically including: disconnecting the second data processor from the first data processor if the single-path mode is established; and if the mode is a dual-channel mode, connecting the second data processor with the first data processor.
Embodiments of the present invention further provide a computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, and has a computer program stored thereon, where the computer program is executed by a processor, and the computer program executes the steps of the foregoing method.
In order to solve the above technical problem, an embodiment of the present invention further provides an electronic device, which includes a memory and a processor, where the memory stores a computer program executable on the processor, and the processor executes the steps of the method when executing the computer program.
The multi-screen multiplexing display device and the method provided by the embodiment of the invention form 2 double-MIPI (Mobile Industry Processor Interface) display architectures of 4Lane (lines) by the MUX (multiplexer) multiplexing mechanism, realize a set of hardware architecture, and can support the requirements of multi-screen simultaneous display and multi-screen different display. By using the scheme of the invention, the user can realize the corresponding display mode only through simple and flexible configuration according to the requirements of the application scene. The display frame can greatly improve the application range of products, save the cost and improve the efficiency.
Drawings
FIG. 1 is a schematic block diagram of a multi-screen multiplexing display apparatus according to an embodiment of the present invention;
FIG. 2 is a block diagram of a multi-panel multi-display device according to an embodiment of the present invention;
FIG. 3 is a flowchart of a multi-screen multiplexing display method according to an embodiment of the present invention;
fig. 4 is another flowchart of a multi-screen multiplexing display method according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below.
Aiming at the problems of efficiency, cost and the like caused by the fact that corresponding display architectures need to be matched respectively for different display scene requirements of users in the prior art, the embodiment of the invention provides a multi-screen multiplexing display device and a multi-screen multiplexing display method.
Fig. 1 is a schematic block diagram of a multi-screen multiplexing display device according to an embodiment of the invention.
In this embodiment, the multi-screen multiplexing display apparatus includes: the display device comprises a control unit 100, a storage unit 200, a display processing unit 300 and a display unit which are connected in sequence.
The display processing unit 300 includes: a first data processor 301, a second data processor 302, said first data processor and said second data processor are connected by a multiplexer 303;
the display unit includes: a first display 401 connected to said first data processor 301 and a second display 402 connected to said second data processor 302.
The control unit 100 is used for saving data to be processed to the storage unit 200;
the first data processor 301 is configured to extract data to be processed from the storage unit 200 for processing, and transmit a processing result to the first display 401 for displaying;
the memory unit 200 may include, but is not limited to, any one or more of the following: RAM (Random Access Memory), SDRAM (synchronous dynamic RAM), and DDR (Double data rate) SDRAM.
The multiplexer 303 is configured to switch the second data processor 302 to process the data to be processed synchronously or asynchronously with the first data processor 301 according to configuration information, and transmit a processing result to the second display 402 for display.
In a specific application, the multiplexer(MUX)303 may have a signal synchronization register that may be configured in either a synchronous signal processing mode (i.e., the second data processor acting as a main processor) or an asynchronous signal processing mode (i.e., the second data processor acting as a co-processor). Accordingly, the multiplexer 303 may determine whether the second data processor is to function as a main processor or a co-processor according to the value of the signal synchronization register.
Further, the multiplexer 303 may further have a mode configuration register, which may configure a single-pass mode or a dual-pass mode. Correspondingly, the multiplexer 303 may determine a path mode according to the value of the mode configuration register, disconnect the second data processor from the first data processor in the single path mode, and connect the second data processor to the first data processor in the dual path mode, so as to implement dual-screen simultaneous display or dual-screen separate display.
In practical applications, the first data processor 301 and the second data processor 302 may be implemented by a DPU (Distributed Processing Unit). The DPU is also called Multi-purpose Controller MAC (Multi-Application Controller). The method can execute the control strategy of the engineer configuration, and can realize both discrete ladder logic control and continuous regulation control.
In addition, considering that the first data processor 301 needs to have stronger processing capability than the second data processor 302, in practical applications, the first data processor 301 may employ a dual-core DPU, and the second data processor 302 may employ a single-core DPU, so as to save hardware cost.
In this embodiment, the multiplexer 303 is specifically configured to switch the second data processor 302 to process the to-be-processed data synchronously with the first data processor 301 when the second data processor 302 is configured as a main processor, and switch the second data processor 302 to process the to-be-processed data asynchronously with the first data processor 301 when the second data processor 302 is configured as a coprocessor. The control of the above-mentioned switching by the multiplexer 303 can be implemented by software,
the way of processing data synchronously or asynchronously by the second data processor 302 and the first data processor 301 is the same as the prior art, and is not described herein again.
Fig. 2 is a block diagram illustrating a specific structure of a multi-screen multiplexing display device according to an embodiment of the present invention.
In this embodiment, the control unit 100 may include, but is not limited to, any one or more of the following processors: GSP (G)raphic SiA general Processing, a Graphics signal processor (GPU), a Graphics Processing Unit (GPU), and a Central Processing Unit (CPU).
In this embodiment, the first data processor is DPU1, and the second data processor is DPU2.
The DPU1 is connected to the first display 401 through a first MIPI interface MIPI1, and the DPU2 is connected to the second display 402 through a second MIPI interface MIPI 2.
The MIPI is an open standard and a standard established for a mobile application processor, is differential serial port transmission, and is high in speed and resistant to interference. The mainstream mobile phone module is transmitted by MIPI, and 4 pairs of differential signals are used for transmitting image data and a pair of differential clock signals during transmission.
The display link carries video of the screen content which is often a mixture of computer generated graphics, documents and camera captured images, video etc. so that parts of the signal have different object points, e.g. text, graphics etc. often have sharp edges, saturated colors and strong contrast compared to natural images. DSC (Display Stream Compression) can provide a class of lightweight, visually lossless, real-time Compression coding for all types of screen content video. For this purpose, a first display stream compression module, i.e., DSC1 in fig. 2, may be further included between DPU1 and MIPI1, and a second display stream compression module, i.e., DSC2 in fig. 2, may be further included between DPU2 and MIPI 2.
In the embodiment shown in fig. 2, one path of MIPI1 signals may be multiplexed between the display main processor unit (i.e., the first data processor) and the display co-processor unit (i.e., the second data processor), and the display path may be switched by configuring the display mode through the MUX. When MIPI1 is multiplexed as a display main processor unit, the MIPI1 can be synchronously processed with MIPI0 and used as an 8Lane interface, and the main representative application of the mode is a flat panel and VR/AR intelligent application; when the MIPI1 is multiplexed as a display coprocessor unit, the MIPI1 can asynchronously process with the MIPI0 and can be used as two 4Lane interfaces, and the main representative application of the mode is the industrial electronic multi-screen different commercial display function.
According to the multi-screen multiplexing display device provided by the embodiment of the invention, two data processors form 2 double-MIPI (mobile industry processor interface) display architectures of 4Lane through an MUX (multiplexer multiplexing) mechanism, so that a set of hardware architectures is realized, namely the requirements of multi-screen simultaneous display and multi-screen different display can be supported. By using the scheme of the invention, a user can realize the corresponding display mode only through simple and flexible configuration according to the requirements of the application scene. The display frame can greatly improve the application range of products, save the cost and improve the efficiency.
Based on the multi-screen multiplexing display device provided by the embodiment of the invention, a MUX multiplexing mechanism can be realized on an SoC (System on Chip ) and 2 MIPI display architectures of 4Lane are realized, so that a set of hardware is realized, that is, requirements of multi-screen simultaneous display and multi-screen different display can be supported, a user selects a corresponding display mode according to an application scene through a flexible configuration method of software, so that different operating systems, such as common (IOS, ANDROID, WIN7, WINDOWS XP, VISTA and the like), and mutually compatible crossover operations among different terminal devices (such as smart phones, smart tablets, computers and TVs) are realized, and the transmission of digital multimedia (such as high definition video, audio and pictures) contents is realized in a wireless network connection mode.
The following examples further illustrate the application of the multi-screen multiplexing display device provided by the embodiment of the present invention in different scenes.
1. Mobile intelligent terminal mobile application
1) 2 independent 4Lane MIPI interfaces are supported, and the application of the double-screen mobile terminal can be realized;
2) 2 4Lane MIPI interfaces can be supported to be used for the multi-screen co-display mobile terminal application;
3) 2 4Lane MIPI interfaces can be supported to be used for the multi-screen different display mobile terminal application;
4) And the application of the mobile terminal with the 8Lane MIPI interface folding screen is supported.
2. Mobile tablet (tablet) like applications
1) The 8Lane MIPI interface can be applied to the flat panel terminal;
2) The terminal supporting 2 external eDP Bridge-like Bridge bridges with 4Lane MIPI interfaces (a display capable of being converted into an eDP interface through an MPIP interface and needing a Bridge conversion chip in the middle) is applied.
3. Commercial display industrial type applications
1) The large-screen application of an 8Lane MIPI interface is supported, and the large-screen display controller can be used for an industrial large-screen display controller;
2) The system supports 2 4Lane asynchronous interfaces and can be used for multi-screen different display industrial application;
3) VR (Virtual Reality)/AR (Augmented Reality) intelligent display terminal supporting 2 4Lane synchronous interfaces.
Correspondingly, an embodiment of the present invention further provides a multi-screen multiplexing display method, as shown in fig. 3, which is a flowchart of the method, and includes the following steps:
in step 301, a multiplexer is arranged between the first data processor and the second data processor.
There are two specific cases:
if the signal synchronization mode is a synchronization signal processing mode, the second data processor and the first data processor synchronously process the data to be processed, and respectively transmit processing results to the first display and the second display for displaying;
and if the signal synchronous mode is an asynchronous signal processing mode, the second data processor and the first data processor process the data to be processed asynchronously, and the processing results are transmitted to the first display and the second display respectively for displaying.
As shown in fig. 4, it is another flowchart of a multi-screen multiplexing display method according to an embodiment of the present invention, including the following steps:
a multiplexer is arranged between the first data processor and the second data processor, step 401.
The channel modes comprise a single channel mode and a double channel mode; the signal synchronization mode includes a synchronous signal processing mode and an asynchronous signal processing mode.
Specifically, if the mode is the single-path mode, the second data processor is disconnected from the first data processor; and if the mode is a dual-channel mode, connecting the second data processor with the first data processor.
Specifically, if the signal synchronization mode is a synchronization signal processing mode, the second data processor and the first data processor synchronously process the data to be processed, and respectively transmit processing results to the first display and the second display for displaying; and if the signal synchronous mode is an asynchronous signal processing mode, the data to be processed is asynchronously processed by the second data processor and the first data processor, and the processing results are respectively transmitted to the first display and the second display for displaying.
According to the multi-screen multiplexing display method provided by the embodiment of the invention, the two data processors form 2 4Lane double MIPI display architectures through a MUX multiplexing mechanism, so that a set of hardware architecture is realized, namely the requirements of multi-screen simultaneous display and multi-screen different display can be supported. By using the scheme of the invention, the user can realize the corresponding display mode only through simple and flexible configuration according to the requirements of the application scene. The display frame can greatly improve the application range of products, save cost and improve efficiency.
In a specific implementation, the multi-screen multiplexing display apparatus may correspond to a chip in a network device, such as an SoC, a baseband chip, a chip module, and the like.
In specific implementation, regarding each module/unit included in each apparatus and product described in the foregoing embodiments, it may be a software module/unit, or may also be a hardware module/unit, or may also be a part of the software module/unit and a part of the hardware module/unit.
For example, for each apparatus and product applied to or integrated into a chip, each module/unit included in the apparatus and product may all be implemented by hardware such as a circuit, or at least a part of the modules/units may be implemented by a software program running on a processor integrated within the chip, and the remaining (if any) part of the modules/units may be implemented by hardware such as a circuit; for each device or product applied to or integrated with the chip module, each module/unit included in the device or product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components of the chip module, or at least some of the modules/units may be implemented by using a software program running on a processor integrated within the chip module, and the rest (if any) of the modules/units may be implemented by using hardware such as a circuit; for each device and product applied to or integrated in the terminal, each module/unit included in the device and product may be implemented by using hardware such as a circuit, and different modules/units may be located in the same component (e.g., a chip, a circuit module, etc.) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program running on a processor integrated in the terminal, and the rest (if any) part of the modules/units may be implemented by using hardware such as a circuit.
An embodiment of the present invention further provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, and a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program performs the steps of the method provided in the corresponding embodiment of fig. 3 or fig. 4. Alternatively, the computer program is executed by a processor to perform the steps of the method provided by the corresponding embodiment in fig. 1.
The embodiment of the present invention further provides an electronic device, which includes a memory and a processor, where the memory stores a computer program that can be executed on the processor, and the processor executes the steps of the method provided in the embodiment corresponding to fig. 3 or fig. 4 when executing the computer program.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected by one skilled in the art without departing from the spirit and scope of the invention, as defined in the appended claims.
Claims (11)
1. A multi-screen multiplexed display apparatus, the apparatus comprising: the control unit, the storage unit, the display processing unit and the display unit are connected in sequence;
the display processing unit includes: the system comprises a first data processor and a second data processor, wherein the first data processor and the second data processor are connected through a multiplexer;
the display unit includes: a first display connected to the first data processor, a second display connected to the second data processor;
the control unit is used for storing data to be processed to the storage unit;
the first data processor is used for extracting data to be processed from the storage unit for processing and transmitting a processing result to the first display for displaying;
the multiplexer is used for switching the second data processor to synchronously or asynchronously process the data to be processed with the first data processor according to configuration information and transmitting a processing result to the second display for displaying; switching the second data processor to process the data to be processed synchronously with the first data processor when the second data processor is configured as a main processor, and switching the second data processor to process the data to be processed asynchronously with the first data processor when the second data processor is configured as a coprocessor.
2. The apparatus of claim 1, wherein the multiplexer has a signal synchronization register;
the multiplexer determines whether the second data processor is to operate as a master processor or a coprocessor based on the value of the signal synchronization register.
3. The apparatus of claim 1, wherein the multiplexer further has a mode configuration register;
the multiplexer determines a path mode according to the value of the mode configuration register, and disconnects the second data processor from the first data processor in a single path mode; and when the double-channel mode is adopted, the second data processor is connected with the first data processor.
4. The apparatus of claim 1, wherein the control unit comprises any one or more of: GSP, GPU and CPU.
5. The apparatus of claim 1, wherein the first data processor is coupled to the first display via a first MIPI interface, and wherein the second data processor is coupled to the second display via a second MIPI interface.
6. The apparatus of claim 5, further comprising a first display stream compression module between the first data processor and the first MIPI interface, and a second display stream compression module between the second data processor and the first MIPI interface.
7. The apparatus of any one of claims 1 to 6, wherein the storage unit comprises any one or more of: RAM, SDRAM, DDR.
8. A multi-screen multiplexing display method is characterized by comprising the following steps:
providing a multiplexer between the first data processor and the second data processor;
configuring a signal synchronization mode, wherein the signal synchronization mode comprises a synchronous signal processing mode and an asynchronous signal processing mode;
controlling, by the multiplexer, a working mode of the second data processor according to the signal synchronization pattern, specifically including:
if the signal synchronization mode is a synchronization signal processing mode, the second data processor and the first data processor synchronously process data to be processed, and the processing results are respectively transmitted to a first display and a second display for displaying;
and if the signal synchronous mode is an asynchronous signal processing mode, the second data processor and the first data processor process the data to be processed asynchronously, and the processing results are transmitted to the first display and the second display respectively for displaying.
9. The method of claim 8, further comprising:
configuring a channel mode, wherein the channel mode comprises a single channel mode and a double channel mode;
controlling, by the multiplexer, the connection of the second data processor according to the pass mode, specifically including:
disconnecting the second data processor from the first data processor if the single-path mode is established;
and if the mode is a dual-channel mode, connecting the second data processor with the first data processor.
10. A computer-readable storage medium, being a non-volatile storage medium or a non-transitory storage medium, having a computer program stored thereon, which, when being executed by a processor, performs the steps of the method of claim 8 or 9.
11. An electronic device comprising a memory and a processor, the memory having stored thereon a computer program being executable on the processor, wherein the processor executes the computer program to perform the steps of the method of claim 8 or 9.
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| CN1510658A (en) * | 2002-11-18 | 2004-07-07 | 三星电子株式会社 | Image displaying device with multiscreen function |
| CN1519737A (en) * | 2003-01-18 | 2004-08-11 | 三星电子株式会社 | Appts. and method for connecting processor to bus |
| CN1885906A (en) * | 2005-06-20 | 2006-12-27 | 三星电子株式会社 | Video processing apparatus |
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| CN1510658A (en) * | 2002-11-18 | 2004-07-07 | 三星电子株式会社 | Image displaying device with multiscreen function |
| CN1519737A (en) * | 2003-01-18 | 2004-08-11 | 三星电子株式会社 | Appts. and method for connecting processor to bus |
| CN1885906A (en) * | 2005-06-20 | 2006-12-27 | 三星电子株式会社 | Video processing apparatus |
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