CN114138219A - Multi-screen display method, multi-screen display system and storage medium - Google Patents
Multi-screen display method, multi-screen display system and storage medium Download PDFInfo
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Abstract
The embodiment of the application provides a multi-screen display method, a multi-screen display system and a storage medium, wherein the method comprises the following steps: acquiring N pieces of image information and N pieces of display parameters corresponding to N pieces of display equipment, wherein the ith piece of display equipment corresponds to the ith piece of image information and the ith piece of display parameter, the display parameters comprise a refresh rate, i is more than or equal to 1 and less than or equal to N, and 2 is more than or equal to N; sending corresponding image information and a refresh rate to each display device in the N display devices, wherein the ith image information and the ith refresh rate are sent to the ith display device; and each display device in the N display devices displays corresponding image information according to a corresponding refresh rate, wherein the ith display device displays the ith image information according to the ith refresh rate. In the embodiment of the application, the refresh rates of a plurality of display devices can be set in a differentiated manner, so that each display device can display according to the required refresh rate.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a multi-screen display method, a multi-screen display system, and a storage medium.
Background
In some application scenarios, it may be necessary to configure multiple display devices (display screens) for the same device or system, through which the same or different pictures are displayed.
The refresh rate refers to the number of times the electron beam repeatedly scans the image on the screen. The higher the refresh rate, the better the stability of the displayed image (picture). When there are multiple display devices, the demand for refresh rate may be different for each display device. However, in the multi-screen display process, the same refresh rate can only be configured for the plurality of display devices in the prior art. For example, the configuration is uniformly performed at a high refresh rate, but this configuration increases the power consumption of a display device requiring a low refresh rate.
Disclosure of Invention
In view of this, the present application provides a multi-screen display method, a multi-screen display system, and a storage medium, so as to solve the problem in the prior art that the same refresh rate can only be configured for a plurality of display devices.
In a first aspect, an embodiment of the present application provides a multi-screen display method, including: acquiring N pieces of image information and N pieces of display parameters corresponding to N pieces of display equipment, wherein the ith piece of display equipment corresponds to the ith piece of image information and the ith piece of display parameter, the display parameters comprise a refresh rate, i is more than or equal to 1 and less than or equal to N, and 2 is more than or equal to N; sending the corresponding image information and the refresh rate to each of the N display devices, wherein the ith image information and the ith refresh rate are sent to the ith display device; and each display device in the N display devices displays the corresponding image information according to the corresponding refresh rate, wherein the ith display device displays the ith image information according to the ith refresh rate.
In one possible implementation, the display parameters further include a resolution, and before the sending the corresponding image information and the refresh rate to each of the N display devices, the method further includes: according to the resolution corresponding to each image information in the N image information, processing each image information respectively to obtain N image information with processed resolutions, wherein the resolution of the ith processed image information is matched with the ith resolution; the sending the corresponding image information and the refresh rate to each of the N display devices includes: sending the corresponding image information after resolution processing and the refresh rate to each display device in the N display devices; each of the N display devices displays the corresponding image information according to the corresponding refresh rate, including: and each display device in the N display devices displays the corresponding image information after resolution processing according to the corresponding refresh rate.
In a possible implementation manner, each of the image information includes a plurality of image layers, and before the sending the corresponding image information and the refresh rate to each of the N display devices, the method further includes: synthesizing a plurality of image layers corresponding to each image information in the N image information respectively to obtain the synthesized image information of the N image layers; the sending the corresponding image information and the refresh rate to each of the N display devices includes: sending the corresponding image information after the layer composition and the refresh rate to each display device in the N display devices; each of the N display devices displays the corresponding image information according to the corresponding refresh rate, including: and each display device in the N display devices displays the corresponding image information after the layer composition according to the corresponding refresh rate.
In one possible implementation manner, before sending the corresponding image information and the refresh rate to each of the N display devices, the method further includes: the first chip compresses N pieces of image information and N pieces of display parameters corresponding to the N pieces of display equipment to obtain compressed data; the first chip sends the compressed data to a second chip; and the second chip decompresses the compressed data to obtain N pieces of image information and N pieces of display parameters corresponding to the N pieces of display equipment.
In a possible implementation manner, the compressing and splicing, by the first chip, the N pieces of image information and the N pieces of display parameters corresponding to the N pieces of display equipment includes: determining transmission bandwidths required by N pieces of image information corresponding to the N pieces of display equipment; if the transmission bandwidth required by the N image information corresponding to the N display devices exceeds a preset bandwidth threshold, the first chip compresses the N image information and the N display parameters corresponding to the N display devices.
In a possible implementation manner, the determining a transmission bandwidth required by N image information corresponding to the N display devices includes: and determining transmission bandwidths required by the N pieces of image information corresponding to the N pieces of display equipment according to the N pieces of display parameters corresponding to the N pieces of display equipment.
In a possible implementation manner, the determining, according to N display parameters corresponding to the N display devices, transmission bandwidths required by N pieces of image information corresponding to the N display devices further includes: and determining the bandwidth required by the N image information corresponding to the N display devices according to the N resolutions and the refresh rate corresponding to the N display devices.
In one possible implementation, at least two display devices with different refresh rates exist in the N display devices.
In a possible implementation manner, the display parameters further include a resolution, and at least two display devices with different resolutions exist in the N display devices.
In a second aspect, an embodiment of the present application provides a multi-screen display system, including: n display devices, wherein N is more than or equal to 2; one or more processors; one or more memories; and one or more computer programs, wherein the one or more computer programs are stored in the one or more memories, the one or more computer programs comprising instructions, which when executed by the one or more processors, cause the multi-screen display system to perform the method of any of the first aspects.
In a second aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium includes a stored program, where the program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the method in any one of the first aspects.
In the embodiment of the application, the refresh rates of a plurality of display devices can be set in a differentiated manner, so that each display device can display according to the required refresh rate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic view of a multi-screen display scene according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of a multi-screen display method according to an embodiment of the present disclosure;
FIG. 3 is a flowchart illustrating another multi-screen display method according to an embodiment of the present disclosure;
FIG. 4 is a flowchart illustrating another multi-screen display method according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of a hardware structure of a multi-screen display system according to an embodiment of the present disclosure;
fig. 6 is a software framework diagram of a multi-screen display system according to an embodiment of the present application.
Detailed Description
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
With the development of society, users have more and more demands on watching video display interfaces. In some scenarios, a user needs to view pictures played in multiple display devices simultaneously.
Referring to fig. 1, a multi-screen display scene schematic diagram provided in the embodiment of the present application is shown. As shown in fig. 1, the multi-screen display scene includes a control device 101 and a display device. Among them, the control apparatus 101 is an apparatus having an information processing capability, and the display apparatus is an apparatus having an image display capability. The control device 101 may transmit the signal source (image) to the display device for display in the display device.
In fig. 1, 3 display devices are shown, respectively a first display device 102, a second display device 103 and a third display device 104. The control device 101 is connected to a first display device 102, a second display device 103 and a third display device 104, respectively. The control device 101 may transmit images to the first display device 102, the second display device 103, and the third display device 104, respectively, and display on the first display device 102, the second display device 103, and the third display device 104, respectively. The first display device 102, the second display device 103, and the third display device 104 may display the same image or different images, which is not limited in this embodiment of the present application.
It should be noted that fig. 1 is only an exemplary illustration of the embodiments of the present application, and should not be taken as a limitation to the scope of the present application. For example, the control device 101 and the display device may be integrated devices or may be connected by a signal line; the number of the display devices may be 2, 4 or more, and the like, which is not limited in the embodiments of the present application.
The demand for refresh rates may be different for the plurality of display devices described above. For example, the first display device 102 and the second display device 103 need to be configured with a refresh rate of 75Hz, and the third display device 104 needs to be configured with a refresh rate of 60 Hz. In the prior art, a differentiated configuration of refresh rates cannot be achieved. For example, the first display device 102, the second display device 103, and the third display device 104 are all configured at 75Hz, which may cause problems such as excessive power consumption of the third display device 104, since the third display device 104 only requires a refresh rate of 60 Hz. In view of the above problems, an embodiment of the present application provides a multi-screen display method, which can perform differentiated setting on refresh rates of a plurality of display devices, so as to improve user experience.
Referring to fig. 2, a flowchart of a multi-screen display method provided in the embodiment of the present application is shown. The method can be applied to the application scenario shown in fig. 1, and as shown in fig. 2, the method mainly includes the following steps.
Step S201: and acquiring N pieces of image information and N pieces of display parameters corresponding to the N pieces of display equipment.
The image information refers to picture information that needs to be displayed on the display device, and may specifically be pixel brightness or color data. The display parameters are related configuration information for displaying the image information. In an embodiment of the present application, the display parameter includes a refresh rate.
Specifically, each display device has a corresponding image information and a corresponding display parameter. For example, when there are 3 display devices, it is necessary to acquire image information and display parameters corresponding to the 3 display devices, respectively. Specifically, first image information and first display parameters corresponding to first display equipment are obtained; acquiring second image information and second display parameters corresponding to second display equipment; and acquiring third image information and third display parameters corresponding to the third display equipment. The first display parameter, the second display parameter and the third display parameter respectively comprise a corresponding first refresh rate, a second refresh rate and a third refresh rate. The first, second, and third refresh rates may be the same or different. For example, there are at least two display devices with different refresh rates among the N display devices.
The number N of display devices is not particularly limited in the embodiments of the present application, and may be any number greater than or equal to 2, for example, 2, 3, 5, and the like.
In a possible implementation manner, each image information may include multiple image layers, in which case, the multiple image layers also need to be merged to obtain merged image information. In other words, the image information in the embodiment of the present application may be image information obtained by combining a plurality of image layers. The number of image layers corresponding to different image information may be different, for example, may be 1, 2, 4, and the like, which is not limited in this embodiment of the application. Step S202: sending the corresponding image information and the refresh rate to each of the N display devices.
After N pieces of image information and N pieces of display parameters corresponding to N pieces of display equipment are obtained, the corresponding image information and the corresponding refresh rate are sent to each piece of display equipment in the N pieces of display equipment. For example, sending first image information and a first refresh rate to a first display device; sending the second image information and the second refresh rate to a second display device; and sending the third image information and the third refresh rate to a third display device.
Step S203: and each display device in the N display devices displays the corresponding image information according to the corresponding refresh rate.
Specifically, different display devices have different driving interfaces, and corresponding clock frequencies may be set for the different driving interfaces, so that the corresponding image information is displayed for each display device according to the corresponding refresh rate.
For example, a first display device displays first image information at a first refresh rate; the second display device displays the second image information according to a second refresh rate; the third display device displays the third image information at a third refresh rate.
In the embodiment of the application, the refresh rates of a plurality of display devices can be set in a differentiated manner, so that each display device can display according to the required refresh rate.
In addition to the refresh rate, the resolution of the plurality of display devices may be different. Correspondingly, the display parameters may further include resolution, so that the resolution displayed by the plurality of display devices can be set in a differentiated manner, and the user experience can be improved.
Referring to fig. 3, a schematic flow chart of another multi-screen display method according to the embodiment of the present application is provided. As shown in fig. 3, the method mainly includes the following steps.
Step S301: the method comprises the steps of obtaining N pieces of image information and N pieces of display parameters corresponding to N pieces of display equipment, wherein the display parameters comprise a refresh rate and a resolution.
In the embodiment of the present application, the display parameters include both the refresh rate and the resolution. That is, the refresh rate and the resolution corresponding to each display device are acquired separately. For example, a first refresh rate and a first resolution corresponding to a first display device are obtained; acquiring a second refresh rate and a second resolution corresponding to second display equipment; and acquiring a third refresh rate and a third resolution corresponding to the third display device. The first resolution, the second resolution, and the third resolution may be the same or different, and this is not limited in this embodiment of the application.
Step S302: and processing each image information according to the resolution corresponding to each image information in the N image information to obtain N resolution processed image information.
Since the resolution of the originally obtained image information may be different from the resolution required by the display device (resolution in the display parameters), the image information needs to be processed before being sent to the display device in order to meet the resolution requirement of the display device for displaying the image.
For example, processing the first image information according to a first resolution to obtain resolution-processed first image information; processing the second image information according to the second resolution to obtain the second image information after resolution processing; and processing the third image information according to the third resolution to obtain the resolution-processed third image information.
In some possible implementations, other processing may also be performed on the image information, for example, adjusting brightness and contrast of the image information, and the like, which is not limited in this application.
Step S303: and sending the corresponding image information after resolution processing and the refresh rate to each display device in the N display devices.
In the embodiment of the present application, the image information sent to the display device is image information subjected to resolution processing. For example, the resolution of the first display device is 1280x720, and the resolution of the first image information after resolution processing is also 1280x 720; the resolution of the second display device is 1920x1080, and the resolution of the second image information after resolution processing is 1920x1080 as well.
Step S304: and each display device in the N display devices displays the corresponding image information after resolution processing according to the corresponding refresh rate.
In the embodiment of the present application, the image information displayed by the display device is image information subjected to resolution processing. For example, the first display device displays first image information having a resolution of 1280x 720; the second display device displays second image information having a resolution of 1920x 1080.
In the embodiment of the application, the resolution and the refresh rate of a plurality of display devices can be set in a differentiated manner, and the user experience is improved.
In specific implementation, if the data size of image information to be displayed by a plurality of display devices is large, the system bandwidth is insufficient, and the display screen of the display device flickers.
In order to solve the problem, the embodiment of the application further provides another multi-screen display method. Referring to fig. 4, a schematic flow chart of another multi-screen display method according to the embodiment of the present application is provided. The method further includes the following steps before the step S203.
Step S401: and the first chip compresses the N pieces of image information and the N pieces of display parameters corresponding to the N pieces of display equipment to obtain compressed data.
The first chip and the second chip related to the embodiment of the application are two chips in a multi-screen display system, and image information and display parameters need to be transmitted between the two chips.
In order to reduce the amount of data transmitted between the first chip and the second chip and increase the anti-interference performance during data transmission, in the embodiment of the present application, the first chip compresses data to be transmitted first before transmitting the data to the second chip. For example, the image data may be compressed using the JPEG algorithm.
In one possible implementation, the first chip may determine whether data needs to be compressed according to a transmission bandwidth required for data to be transmitted. Specifically, determining transmission bandwidths required by N pieces of image information corresponding to the N pieces of display equipment; if the transmission bandwidth required by the N image information corresponding to the N display devices exceeds a preset bandwidth threshold, the first chip compresses the N image information and the N display parameters corresponding to the N display devices. That is, only when the data amount of the image information is large, the compression processing of the data is performed before the data transmission.
In a specific implementation, transmission bandwidths required by N pieces of image information corresponding to N pieces of display equipment may be determined according to N display parameters corresponding to the N pieces of display equipment. In particular, the required transmission bandwidth may be determined according to the resolution and refresh rate in the display parameters. For example, a corresponding relationship between the resolution and/or the refresh rate and the transmission bandwidth may be set, and after the first chip acquires the display parameters, the resolution and/or the refresh rate in the display parameters may be extracted, so as to determine the required transmission bandwidth.
In addition, in order to ensure that the plurality of image information and the display parameters are simultaneously transmitted to the corresponding display devices, after the compressed data is obtained, the plurality of compressed data corresponding to the plurality of display devices can be spliced. The splicing can be understood as splicing compressed data corresponding to a plurality of display devices together for data transmission.
Step S402: and the first chip sends the compressed data to the second chip.
And after the image information and the display parameters are compressed in the steps, the compressed and spliced data is sent to the second chip.
If the compressed data corresponding to the plurality of display devices are spliced in step S401, the compressed data are sent to the second chip after being compressed and spliced.
Step S403: and the second chip decompresses the compressed data to obtain N pieces of image information and N pieces of display parameters corresponding to the N pieces of display equipment.
Since the data received by the second chip is compressed data, decompression needs to be performed first after the data is received, so as to obtain N pieces of image information and N pieces of display parameters corresponding to the N pieces of display equipment, and then the N pieces of image information and the N pieces of display parameters are respectively sent to the corresponding display equipment.
If the compressed data corresponding to the plurality of display devices are spliced in step S401, the second chip firstly disassembles the received data to obtain the compressed data corresponding to the plurality of display devices, and then decompresses the compressed data corresponding to the plurality of display devices to obtain the image information display parameters corresponding to the plurality of display devices.
Referring to fig. 5, a hardware structure diagram of a multi-screen display system according to an embodiment of the present disclosure is shown. As shown in fig. 5, the multi-screen Display system includes a Cathode Ray Tube Context (CRTC), a Display Processor Unit (DPU), a Display Interface (DSI) chip, a switching chip, and a Display device, where the number of Display devices is not limited in the embodiment of the present application, for example, fig. 5 shows a first Display device, a second Display device, … …, and an nth Display device.
The CRTC is a data pipeline for receiving pixel data and mixing them together for transmission to the next stage. In one possible implementation, one CRTC may be bound for each display device, but only one CRTC is real hardware and the other CRTCs are virtual. The hardware CRTC can acquire the image information of all display devices and the display parameters of the display devices corresponding to the image information; and the virtual CRTC is only used for acquiring the display parameters of the corresponding display device.
And after acquiring the image information and the display parameters corresponding to the plurality of display devices, the CRTC transmits the acquired data to the DPU.
The DPU is a display processor, which may also be called a display controller, and is mainly responsible for functions such as image processing, format conversion, image rotation, image synthesis and display, and the real-time requirement is relatively high. In the display system, data is read from the DDR, processed and transmitted to the DSI. In this embodiment of the present application, the DPU may perform corresponding processing on the acquired image information. For example, if each image information corresponds to multiple image layers, the DPU may synthesize the multiple image layers to obtain synthesized image information; or, the DPU may adjust the resolution of each piece of image information according to the resolution in the received display parameters, so that the resolution of each piece of image information meets the requirements of the corresponding display device. And the DPU sends the processed image information and the display parameters to the DSI chip.
The DSI is a serial Interface applied to Display technology, and is compatible with a Display Pixel Interface (DPI), a Display Bus Interface (DBI) and a Display Command Set (DCS), and sends Pixel information or commands to an external device in a serial manner, and reads status information or Pixel information from the external device, and enjoys an independent communication protocol during transmission, including a data packet format and an error correction and detection mechanism. After receiving the image information (image information processed by the DPU) and the display parameter, the DSI chip may determine whether the system bandwidth can meet the data transmission requirement according to the display parameter. For example, whether the system bandwidth can meet the data transmission requirement can be determined according to the resolution in the display parameters. And if the system bandwidth is judged to be insufficient, compressing the image information and the display parameters, and transmitting the compressed data to the switching chip. In a possible implementation manner, the DSI chip may further splice compressed data corresponding to the plurality of display devices, and then transmit the spliced data to the switching chip.
The switching chip decompresses the compressed data after receiving the compressed data, obtains image information and display parameters corresponding to the plurality of display devices, and then sends each image information and display parameter to the corresponding display device for displaying. Wherein the display parameters sent to the display device should include a refresh rate so that the display device can display the received image information according to the received refresh rate. Of course, the switching chip may also send the resolution to the display device together, which is not limited in this embodiment of the application.
In addition, if the data received by the switching chip is spliced data, the spliced data needs to be disassembled to obtain image information and display parameters corresponding to the plurality of display devices.
Referring to fig. 6, a software framework diagram of a multi-screen display system according to an embodiment of the present application is provided.
As shown in fig. 6, the software Framework includes, from top to bottom, a Framework (FWK) layer, a Hardware Abstraction (HAL) layer, a System Library (LibDRM) layer, and a Kernel (Kernel) layer.
The FWK layer is used to provide an Application Programming Interface (API) and a programming framework for the application programs of the application layer, including some predefined functions. The FWK includes a display synthesizer (surfefinger) and a hardware synthesizer (HW Composer). Among them, the surfaceflunger is used to accept graphic display data from multiple sources, synthesize them, and then transmit them to a display device. HW Composer is used to introduce a HAL, which is used by surfefinger to speed up the synthesis of Surface using hardware resources, such as 3D GPU and 2D graphics engine.
The HAL layer is an interface layer between the operating system kernel and the hardware circuitry, which is intended to abstract the hardware. It hides the hardware interface details of specific platform, provides virtual hardware platform for operation system, makes it have hardware independence, and can be transplanted on several platforms. The HAL layer comprises HWC HAL, wherein the HWC is a function for completing image data combination and displaying by utilizing hardware.
DRM is a display driving framework of a Linux kernel layer, and encapsulates display functions into standard interfaces, and programs in a user space call the interfaces, drive equipment and display data. LibDRM encapsulates these interfaces provided by DRM drivers. Through the LibDRM library, the program can indirectly invoke the DRM driver.
The Kernel layer includes DRM drivers, a main CRTC, and an auxiliary CRTC. The main CRTC is used for acquiring image information and display parameters, then sending the acquired image information and display parameters to the display interface DSI, and the auxiliary CRTC is only used for acquiring the display parameters.
In a specific implementation, an embodiment of the present application further provides a multi-screen display system, including: n display devices, wherein N is more than or equal to 2; one or more processors; one or more memories; and one or more computer programs, wherein the one or more computer programs are stored in the one or more memories, the one or more computer programs comprising instructions, which when executed by the one or more processors, cause the multi-screen display system to perform the method of any of the above method embodiments.
In specific implementation, the present application further provides a computer storage medium, where the computer storage medium may store a program, and the program may include some or all of the steps in the embodiments provided in the present application when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a Random Access Memory (RAM).
In a specific implementation, an embodiment of the present application further provides a computer program product, where the computer program product includes executable instructions, and when the executable instructions are executed on a computer, the computer is caused to perform some or all of the steps in the foregoing method embodiments.
In the embodiments of the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and means that there may be three relationships, for example, a and/or B, and may mean that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.
Those of ordinary skill in the art will appreciate that the various elements and algorithm steps described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided by the present invention, any function, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only an embodiment of the present invention, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. A multi-screen display method, comprising:
acquiring N pieces of image information and N pieces of display parameters corresponding to N pieces of display equipment, wherein the ith piece of display equipment corresponds to the ith piece of image information and the ith piece of display parameter, the display parameters comprise a refresh rate, i is more than or equal to 1 and less than or equal to N, and 2 is more than or equal to N;
sending the corresponding image information and the refresh rate to each of the N display devices, wherein the ith image information and the ith refresh rate are sent to the ith display device;
and each display device in the N display devices displays the corresponding image information according to the corresponding refresh rate, wherein the ith display device displays the ith image information according to the ith refresh rate.
2. The method of claim 1, wherein the display parameters further include a resolution, and further comprising, prior to said sending the corresponding image information and the refresh rate to each of the N display devices:
according to the resolution corresponding to each image information in the N image information, processing each image information respectively to obtain N image information with processed resolutions, wherein the resolution of the ith processed image information is matched with the ith resolution;
the sending the corresponding image information and the refresh rate to each of the N display devices includes: sending the corresponding image information after resolution processing and the refresh rate to each display device in the N display devices;
each of the N display devices displays the corresponding image information according to the corresponding refresh rate, including: and each display device in the N display devices displays the corresponding image information after resolution processing according to the corresponding refresh rate.
3. The method of claim 1, wherein each of the image information comprises a plurality of layers, and further comprising, prior to the sending of the corresponding image information and the refresh rate to each of the N display devices:
synthesizing a plurality of image layers corresponding to each image information in the N image information respectively to obtain the synthesized image information of the N image layers;
the sending the corresponding image information and the refresh rate to each of the N display devices includes: sending the corresponding image information after the layer composition and the refresh rate to each display device in the N display devices;
each of the N display devices displays the corresponding image information according to the corresponding refresh rate, including: and each display device in the N display devices displays the corresponding image information after the layer composition according to the corresponding refresh rate.
4. The method of claim 1, wherein prior to sending the corresponding image information and refresh rate to each of the N display devices, further comprising:
the first chip compresses N pieces of image information and N pieces of display parameters corresponding to the N pieces of display equipment to obtain compressed data;
the first chip sends the compressed data to a second chip;
and the second chip decompresses the compressed data to obtain N pieces of image information and N pieces of display parameters corresponding to the N pieces of display equipment.
5. The method according to claim 4, wherein the compressing, by the first chip, the N pieces of image information and the N pieces of display parameters corresponding to the N pieces of display equipment comprises:
determining transmission bandwidths required by N pieces of image information corresponding to the N pieces of display equipment;
if the transmission bandwidth required by the N image information corresponding to the N display devices exceeds a preset bandwidth threshold, the first chip compresses the N image information and the N display parameters corresponding to the N display devices.
6. The method according to claim 5, wherein the determining a transmission bandwidth required by the N image information corresponding to the N display devices comprises:
and determining transmission bandwidths required by the N pieces of image information corresponding to the N pieces of display equipment according to the N pieces of display parameters corresponding to the N pieces of display equipment.
7. The method according to claim 6, wherein the display parameters further include a resolution, and the determining, according to the N display parameters corresponding to the N display devices, transmission bandwidths required by the N image information corresponding to the N display devices includes:
and determining the bandwidth required by the N image information corresponding to the N display devices according to the N resolutions and the refresh rate corresponding to the N display devices.
8. The method of claim 1, wherein at least two display devices of the N display devices have different refresh rates.
9. The method of claim 8, wherein the display parameters further include a resolution, and wherein at least two of the N display devices have different resolutions.
10. A multi-screen display system, comprising:
n display devices, wherein N is more than or equal to 2;
one or more processors;
one or more memories;
and one or more computer programs, wherein the one or more computer programs are stored in the one or more memories, the one or more computer programs comprising instructions, which when executed by the one or more processors, cause the multi-screen display system to perform the method of any of claims 1-9.
11. A computer-readable storage medium, comprising a stored program, wherein the program, when executed, controls an apparatus in which the computer-readable storage medium is located to perform the method of any one of claims 1 to 9.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114898715A (en) * | 2022-04-29 | 2022-08-12 | 展讯通信（上海）有限公司 | Screen backlight control method, device, terminal and medium |
| CN115065848A (en) * | 2022-06-10 | 2022-09-16 | 展讯半导体(成都)有限公司 | Display data transmission method, electronic equipment and module equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114898715A (en) * | 2022-04-29 | 2022-08-12 | 展讯通信（上海）有限公司 | Screen backlight control method, device, terminal and medium |
| CN115065848A (en) * | 2022-06-10 | 2022-09-16 | 展讯半导体(成都)有限公司 | Display data transmission method, electronic equipment and module equipment |
| CN115065848B (en) * | 2022-06-10 | 2023-11-17 | 展讯半导体(成都)有限公司 | Display data transmission method, electronic equipment and module equipment |
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