Display control apparatus, electronic device and display control method

Abstract

The present application relates to the technical field of chips. Provided in the embodiments of the present application are a display control apparatus, an electronic device and a display control method, which improve the display efficiency of multi-screen devices. The specific solution is that: the display control apparatus comprises a first switching switch, at least one data transmission channel and a plurality of display interfaces, the at least one data transmission channel being coupled to the plurality of display interfaces by means of the first switching switch, the first switching switch being used for establishing electrical connectivity between the at least one data transmission channel and at least one of the plurality of display interfaces, each of the at least one data transmission channel being used for processing an image to be displayed, and each of the plurality of display interfaces being coupled to at least one of a plurality of display screens. The embodiments of the present application are used for a process of transmitting to display screens images to be displayed.

Description

Display control device, electronic device, and display control method

[0001] The present application claims priority to the Chinese patent application No. 202410966253.8, filed on July 17, 2024, and entitled "Display control device, electronic device, and display control method", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the chip technical field, and in particular to a display control device, an electronic device, and a display control method. BACKGROUND

[0003] With the continuous development of electronic devices, users have more and more requirements for the display function of electronic devices. Among them, the folding double-screen electronic device further improves the user experience.

[0004] Taking a folding double-screen electronic device as a folding mobile phone as an example, the folding mobile phone usually includes "large folding" and "small folding", wherein "large folding" refers to a mobile phone folded along a vertical folding line, and "small folding" refers to a mobile phone folded along a horizontal folding line. "Large folding" can provide a larger screen to facilitate users to watch videos or browse webpages on a larger screen, etc. "Small folding" can provide portability by providing a larger screen when the screen is unfolded and providing a smaller screen when the screen is folded.

[0005] However, with the increase in the number of display screens, there are more and more scenarios in which different display screens of an electronic device are used simultaneously or individually, and users have higher and higher demands on the performance of multi-screen devices. SUMMARY

[0006] Embodiments of the present application provide a display control device, an electronic device, and a display control method, which improve the display effect of a multi-screen device.

[0007] To achieve the above-mentioned purpose, the embodiments of the present application adopt the following technical solutions.

[0008] In a first aspect, the embodiments of the present application provide a display control device, which includes a first switch, at least one data transmission channel, and a plurality of display interfaces, the at least one data transmission channel being coupled to the plurality of display interfaces through the first switch. The first switch is used to turn on the at least one data transmission channel and at least one display interface of the plurality of display interfaces. Each data transmission channel of the at least one data transmission channel is used to process a to-be-displayed image, and each display interface of the plurality of display interfaces is coupled to at least one display screen of a plurality of display screens.

[0009] Thus, the display control apparatus provided by the embodiments of the present application adds a first switch between the data transmission channel and the display interface, and the full-featured data transmission channel in the at least one data transmission channel can be time-multiplexed through the first switch. For example, when any display screen displays an image, the full-featured data transmission channel and the corresponding display interface are turned on through the first switch. Thus, when the display screens of the multi-screen device display individually, the full-featured data transmission channel is used to process the image to be displayed, so that the display effect when the display screens of the multi-screen device display individually can be improved. In addition, through the first switch, when the display screens of the multi-screen device display simultaneously, the data transmission channel can be reasonably scheduled, so that the chip area and resources are saved, and the overall performance is improved.

[0010] In a possible design, the display control apparatus further includes a second switch, the at least one data transmission channel includes a first data transmission channel, the plurality of display interfaces includes a first display interface and a second display interface, and the plurality of display screens includes a first display screen and a second display screen. The first display interface and the second display interface are coupled to the first display screen and the second display screen through the second switch. The first data transmission channel is configured to perform at least one of the following on the image to be displayed: pre-processing, superimposition, and display post-processing DPP, and perform display integrated driving circuit DDIC processing and display data stream compression DSC processing. The first switch is configured to turn on the first data transmission channel and the first display interface, and turn on the first data transmission channel and the second display interface. The second switch is configured to perform any of the following: turn on the first display interface and the first display screen, and turn on the second display interface and the first display screen; and turn on the first display interface and the second display screen, and turn on the second display interface and the second display screen.

[0011] In this design, the first data transmission channel is a full-featured data transmission channel, and in a scenario in which the first display screen and the second display screen of the multi-screen device both need to be supported by two display interfaces, the first display screen and the second display screen can be time-multiplexed on the first data transmission channel through the first switch and the second switch, so that the display effect when the display screens of the multi-screen device display individually can be improved.

[0012] In a possible design, the at least one data transmission channel includes a first data transmission channel and a second data transmission channel, the plurality of display interfaces includes a first display interface and a second display interface, and the plurality of display screens includes a first display screen and a second display screen, the first display interface is coupled to the first display screen, and the second display interface is coupled to the second display screen. The first data transmission channel is configured to perform at least one of the following on the image to be displayed: pre-processing, superimposition, and display post-processing DPP, and perform display integrated driving circuit DDIC processing and display data stream compression DSC processing. The second data transmission channel is configured to perform at least one of the following on the image to be displayed: pre-processing, superimposition, and partial function of DPP, and the second data transmission channel does not have the function of DDIC processing and DSC processing. The first switch is configured to perform any one of the following: turn on the first data transmission channel and the first display interface; turn on the first data transmission channel and the second display interface; and turn on the first data transmission channel and the first display interface, and turn on the second data transmission channel and the second display interface.

[0013] In this design, in the display control apparatus provided by the embodiments of the present application, in the scenario where the first display screen is used for separate display, the first switch is used to turn on the first data transmission channel and the first display interface, and in the scenario where the second display screen is used for separate display, the first switch is also used to turn on the first data transmission channel and the second display interface. That is, in the scenario where any one of the display screens is used for separate display, the full-function first data transmission channel is used to process the image to be displayed, so that the display effect in the scenario where the display screen is used for separate display can be improved. In addition, compared with the first data transmission channel, the second data transmission channel is a weak-function data transmission channel, and can also support the scenario where the two display screens are used for simultaneous display, and the area and resources of the chip of the display control apparatus do not need to be increased, so that the display effect of the display screen can be improved.

[0014] In a possible design, the display control apparatus further includes a second switch, the second display interface is coupled to the first display screen through the second switch, and the second display interface is coupled to the second display screen through the second switch. The second switch is configured to turn on the second display interface and the first display screen, or turn on the second display interface and the second display screen. The first switch is further configured to turn on the first data transmission channel and the second display interface.

[0015] In this design, in the display control apparatus provided by the embodiments of the present application, in the scenario where the first display screen needs two display interfaces and the second display screen needs one display interface, the first switch and the second switch can be used to realize time-division multiplexing of the first display screen and the second display screen on the first data transmission channel, so that the display effect in the scenario where the display screen of the multi-screen device is used for separate display can be improved.

[0016] In a possible design, the plurality of display interfaces further include a third display interface, and the third display interface is coupled to the first display screen. The first switch further serves to turn on the first data transmission channel and the third display interface.

[0017] In this design, the display control apparatus provided in the embodiments of the present application can support the first display screen through the first display interface and the third display interface in the scenario where the first display screen needs two display interfaces and the second display screen needs one display interface. The first display screen and the second display screen can be time-division multiplexed on the first data transmission channel through the first switch, and the display effect of the multi-screen device when the display screens are displayed individually can be improved.

[0018] In a possible design, each display interface in the plurality of display interfaces includes any one of the following interfaces: a display serial interface (DSI), an embedded display port (eDP), and a display port (DP). Thus, the display control apparatus provided in the embodiments of the present application can be applied to multi-screen devices of various types, and the display effect of multi-screen devices of various types can be improved.

[0019] In a possible design, the display control apparatus further includes a processor, and the processor is configured to control the first switch according to a display screen of the plurality of display screens on which an image to be displayed is displayed. Thus, the display control apparatus provided in the embodiments of the present application can obtain the current display scenario of the display screen, for example, a scenario where the first display screen is displayed individually, a scenario where the second display screen is displayed individually, or a scenario where the two display screens are displayed simultaneously, to control the first switch to implement different scenarios.

[0020] In a second aspect, the embodiments of the present application provide an electronic device, which includes a plurality of display screens and the display control apparatus of the first aspect.

[0021] In a third aspect, the embodiments of the present application provide a display control method, which is applied to a display control apparatus including a first switch, at least one data transmission channel, and a plurality of display interfaces. The method includes processing an image to be displayed through each data transmission channel in the at least one data transmission channel, and turning on the at least one data transmission channel and at least one display interface in the plurality of display interfaces through the first switch. Each display interface in the plurality of display interfaces is coupled to at least one display screen in the plurality of display screens.

[0022] In a fourth aspect, the embodiments of the present application provide a computer readable storage medium, which includes computer instructions. When the computer instructions run on an electronic device, the electronic device performs the display control method in any one of the aspects and any one of the possible implementation manners.

[0023] In a fifth aspect, an embodiment of the present application provides a computer program product, which, when executed on a computer or a processor, causes the computer or the processor to perform the display control method in any of the above aspects and any possible implementation manner.

[0024] It can be understood that any of the display control apparatus, the electronic device, the computer readable storage medium or the computer program product provided above can be applied to the corresponding method provided above, and the beneficial effects achieved thereby can refer to the beneficial effects in the corresponding method, which will not be described here again.

[0025] These aspects or other aspects of the present application will become more apparent in the following description. BRIEF DESCRIPTION OF DRAWINGS

[0026] FIG. 1 is a structural schematic diagram of an electronic device with a single screen according to an embodiment of the present application;

[0027] FIG. 2 is a structural schematic diagram of an electronic device with a folding screen according to an embodiment of the present application;

[0028] FIG. 3 is a structural schematic diagram of another electronic device with a folding screen according to an embodiment of the present application;

[0029] FIG. 4 is a structural schematic diagram of a data transmission channel according to an embodiment of the present application;

[0030] FIG. 5 is a structural schematic diagram of an electronic device according to an embodiment of the present application;

[0031] FIG. 6 is a structural schematic diagram of another electronic device according to an embodiment of the present application;

[0032] FIG. 7 is a schematic diagram of a software architecture according to an embodiment of the present application;

[0033] FIG. 8 is a user usage behavior and user usage scenario diagram of a folding mobile phone according to an embodiment of the present application;

[0034] FIG. 9 is a structural schematic diagram of a display control apparatus according to an embodiment of the present application;

[0035] FIG. 10 is a structural schematic diagram of another display control apparatus according to an embodiment of the present application;

[0036] FIG. 11 is a structural schematic diagram of still another display control apparatus according to an embodiment of the present application;

[0037] FIG. 12 is a structural schematic diagram of still another display control apparatus according to an embodiment of the present application;

[0038] FIG. 13 is a structural schematic diagram of still another display control apparatus according to an embodiment of the present application;

[0039] FIG. 14 is a flowchart of a display control method according to an embodiment of the present application. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In the description of the embodiments of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B; in this document, "and / or" is merely a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0041] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features. In the description of the embodiments, unless otherwise specified, the meaning of "multiple" is two or more than two.

[0042] The embodiments of the present application use "first" and "second" and the like to distinguish objects with similar names or functions or effects. Those skilled in the art can understand that "first" and "second" and the like do not limit the number and execution order. The word "coupled" is used to represent electrical connection, including direct connection through wires or connection terminals or indirect connection through other devices. Therefore, "coupled" should be regarded as a general electronic communication connection.

[0043] It should be noted that in the present application, "exemplary" or "for example" and the like are used to represent as an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the use of "exemplary" or "for example" and the like is intended to present the relevant concept in a specific manner.

[0044] Currently, most electronic devices include a single screen, such as a straight phone and a tablet. As shown in FIG. 1, the electronic device shown in FIG. 1 includes a system on chip (SoC) and a display screen, the SoC is coupled with the display screen through a high-speed serial interface, which can be a physical layer (PHY) interface. The SoC can include a display sub system (DSS), the DSS can include a data transmission channel (also referred to as a display pipeline) and two display serial interfaces (DSIs), such as DSI1 and DSI2. It can be understood that the data transmission channel can include a plurality of devices or components, which are not shown in FIG. 1, and in addition, the DSS can also include only one DSI. The processing flow of the electronic device for image data can be: the DSS processes the image data through the data transmission channel, and then sends the processed image data to the display screen through DSI1 or DSI2, and the display screen displays the processed image data.

[0045] With the increasing requirements of users for display functions, more and more electronic devices begin to use folding screens, such as "large folding" phones. One of the display screens in the "large folding" phone is large in size, and needs two-way DSI to transmit image data, and the other display screen is medium in size, and only needs one-way DSI to transmit image data. The electronic device can include a SoC, a switch, a display screen 1 and a display screen 2, wherein the SoC can include a DSS, the DSS can include a data transmission channel 1, a data transmission channel 2, a DSI1 and a DSI2, the data transmission channel 1 corresponds to the DSI1, and the data transmission channel 2 corresponds to the DSI2. As shown in (a) of FIG. 2, the input end of the switch is coupled with the output end of the DSI1, the first output end of the switch is coupled with the display screen 1, the second output end of the switch is coupled with the display screen 2, and the output end of the DSI2 is coupled with the display screen 1. As shown in (b) of FIG. 2, the input end of the switch is coupled with the output end of the DSI2, the first output end of the switch is coupled with the display screen 1, the second output end of the switch is coupled with the display screen 2, and the output end of the DSI1 is coupled with the display screen 1. Thus, through the switch, the hardware pipeline of the DSI can be multiplexed, and the requirement that two-way DSI supports two display screens and the larger size display screen needs two-way DSI can be met. However, the electronic device does not support double-screen display at the same time, that is, only the display screen 1 or the display screen 2 works at the same time.

[0046] For another foldable-screen electronic device, for example, a "small foldable" mobile phone, one display screen is small in size, and the other display screen is medium in size. As shown in FIG. 3, the electronic device can include a SoC, a display screen 1, and a display screen 2. Among them, the SoC can include a DSS, the DSS can include a data transmission channel 1, a data transmission channel 2, a DSI 1, and a DSI 2, the data transmission channel 1 and the DSI 1 correspond to each other, and the data transmission channel 2 and the DSI 2 correspond to each other. The output end of the DSI 1 is coupled to the display screen 1, and the output end of the DSI 2 is coupled to the display screen 2, that is, each display screen transmits image data through one DSI. Therefore, the electronic device does not exist the case of hardware path multiplexing of the DSI, and can support double-screen simultaneous display, that is, the display screen 1 and the display screen 2 are both working at the same time, for example, a smart shooting scene and the like.

[0047] The ability of the intellectual property (IP) core of the DSS of different SoCs is different, for example, the DSS of the SoC can only include one data transmission channel, or the DSS of the SoC can include two data transmission channels. Among them, the functions and performances of the two data transmission channels are different, usually one data transmission channel is a full-function channel, supporting most functions, and the other data transmission channel is a weak-function channel, only supporting simple basic functions.

[0048] Specifically, as shown in (a) of FIG. 4, the full-function channel can include a pre-processing module, an overlay module, a display post process (DPP) enhanced module, a display driver integrated circuit (DDIC), and a display stream compression (DSC). In addition, as shown in (b) of FIG. 4, the weak-function channel can include a pre-processing module, an overlay module, and a DPP weak-function module; among them, the DPP weak-function module has part of the function of the DPP enhanced module, that is, has a weaker ability. It can be seen that the display screen coupled to the weak-function channel does not support display stream compression and DDIC control. Among them, part of the display effect IP in the DDIC has an enhanced function, which can support burn-in detection and burn-in compensation processing, to avoid the case of burn-in caused by long-term use of the display screen. The DSC can be applied to a display screen with a larger resolution, the DSC can compress the image data and transmit it to the display screen through the display interface, which can reduce the data transmission amount, reduce the bandwidth used by the display interface, and improve the data transmission rate, thereby supporting high frame rate refresh of the display screen and reducing power consumption.

[0049] In addition, since the "large folding" mobile phone does not support the simultaneous display of two screens, the full-function channel and the weak-function channel can be time-multiplexed and switched. However, in some scenarios, the "small folding" mobile phone needs two data transmission channels to work simultaneously. At this time, the full-function channel is usually used for the display screen with a larger size, and the weak-function channel is used for the display screen with a smaller size.

[0050] However, since the weak-function channel can only support simple basic functions, the user using the display screen with a smaller size does not have obvious perception of the DPP weak function. In addition, the display screen with a smaller size does not support the DSC function and the DDIC function, and the size of the display screen cannot be too large, otherwise the transmission bandwidth is insufficient, and the frame rate of the display screen is also limited, for example, the frame rate of the display screen cannot reach 120 frames.

[0051] With the increasing resolution of the display screen with a smaller size, the user's perception of the display effect is more and more obvious, and the scene of using the display screen with a smaller size alone is more and more common. The user's requirements for the specifications of the display screen with a smaller size are also higher and higher. If the display screen with a smaller size always uses the weak-function channel and does not support the DSC function and the DDIC function, that is, the use frame rate of the display screen is low, and in the game scene, the display screen may be stuck, and the display screen may be burned after a long time of use, which will reduce the user's experience and limit the development of the display screen.

[0052] In order to improve the user's experience of the display screen with a smaller size, the weak-function channel can be strengthened, or two full-function channels can be configured in the DSS. However, both of these two methods will increase the chip area and require a higher process. In addition, if two full-function channels are configured in the DSS, only one full-function channel works most of the time, which will waste idle resources.

[0053] Therefore, an embodiment of the present application provides a display control device, and the display driving chip is additionally provided with a first switching switch. Through the first switching switch, the full-function data transmission channel can be time-multiplexed to improve the display effect of the display screen of the multi-screen device when the display screen is displayed alone. In addition, when the two screens are displayed simultaneously, the data transmission channel can be reasonably scheduled, the chip area and resources are saved, and the performance of the whole machine is improved.

[0054] In the above scenario, the display control apparatus provided by the embodiments of the present application can be applied to an electronic device, which includes a plurality of display screens and the display control apparatus. Specifically, the electronic device is, for example, a consumer electronic product, a household electronic product, a vehicle-mounted electronic product, a financial electronic device product, etc. with a display function. The consumer electronic product is, for example, a mobile phone, a tablet computer, a notebook computer, an e-book reader, a personal computer (PC), a personal digital assistant (PDA), a desktop display, a smart wearable product (for example, a smart watch, a smart bracelet), a virtual reality (VR) electronic device, an augmented reality (AR) electronic device, a drone, etc. The household electronic product is, for example, a smart door lock, a television, a remote controller, a refrigerator, a charging household small appliance (for example, a soybean milk machine, a sweeping robot), etc. The vehicle-mounted electronic product is, for example, a vehicle-mounted navigation instrument, a vehicle-mounted high-density digital video disc (DVD), etc. The financial electronic device product is, for example, an automated teller machine (ATM), a self-service electronic device, etc. The embodiments of the present application do not specially limit the specific form of the above electronic device.

[0055] In some embodiments, the display control apparatus provided by the embodiments of the present application can be applied to a folding mobile phone provided with two or more display screens, for example, the "small folding" mobile phone and the "large folding" mobile phone described above.

[0056] The "small folding" mobile phone is shown in FIG. 5. FIG. 5(a) shows the first display screen in the unfolded state, and FIG. 5(b) and (c) show the second display screen in the folded state. The first display screen is a folding screen, which is wrapped on the inside of the mobile phone when the first display screen is folded inward along the folding line from the unfolded state. At this time, the mobile phone is in the folded state, and the display screen visible to the user on the outside of the mobile phone is the second display screen. It can be understood that the shape of the second display screen can be square or circular, which is not limited by the embodiments of the present application.

[0057] The "large folding" mobile phone is shown in FIG. 6. FIG. 6(a) shows the first display screen in the unfolded state, and FIG. 6(b) shows the second display screen in the folded state. The first display screen is a folding screen, which is wrapped on the inside of the mobile phone when the first display screen is folded inward along the folding line from the unfolded state. At this time, the mobile phone is in the folded state, and the display screen visible to the user on the outside of the mobile phone is the second display screen.

[0058] In some embodiments, the software architecture of the mobile phone is shown in FIG. 7, and the software of the mobile phone can include a kernel layer, a system library, a framework layer, and an application layer. The kernel layer includes display drivers, audio drivers, camera drivers, and others, the system library includes graphics processing libraries, media libraries, operating system (OS) foundation libraries, and others, the framework layer includes window management, event management, resource management, audio systems, view systems, and others, and the application layer includes cameras, galleries, navigation, videos, and others.

[0059] For the folding mobile phone, the user behavior and the user scenario are shown in FIG. 8, the user behavior can include folding use, unfolding use, folding / unfolding switching, rotation operation, hovering state, and screen projection use, and the user scenario can include screen on / off, photographing / recording, video / game inside / outside screen switching, and always on display (AOD) inside / outside screen switching. The folding mobile phone can display on a single screen or on two screens, that is, the two screens can be used simultaneously, such as in a smart shooting scenario.

[0060] The display control device provided by the embodiments of the present application will be further described below with reference to the accompanying drawings.

[0061] The display control device provided by the embodiments of the present application is shown in FIG. 9, which includes a first switching switch, at least one data transmission channel, and a plurality of display interfaces. The at least one data transmission channel is coupled through the first switching switch and the plurality of display interfaces, and each of the plurality of display interfaces is coupled to at least one of the plurality of display screens. In FIG. 9, only a first data transmission channel and a second data transmission channel of the at least one data transmission channel, and a first display interface and a second display interface of the plurality of display interfaces are shown. The display control device in FIG. 9 is only schematic, and the embodiments of the present application do not limit the number of data transmission channels, display interfaces, and display screens of the display control device. In addition, the first display interface and the first display screen are coupled in FIG. 9, and the second display interface and the second display screen are coupled, and the coupling mode in FIG. 9 is only schematic, and there can be other coupling modes between the display interface and the display screen.

[0062] The first switching switch is used to turn on the at least one data transmission channel and the at least one display interface of the plurality of display interfaces.

[0063] For example, referring to FIG. 9, the first switching switch can turn on any one of the following combinations: the first data transmission channel and the first display interface; the second data transmission channel and the second display interface; the first data transmission channel and the second display interface; the second data transmission channel and the first display interface; the first data transmission channel, the first display interface, and the second display interface; and the second data transmission channel, the first display interface, and the second display interface.

[0064] Optionally, each of the plurality of display interfaces comprises any one of the following: a DSI, an embedded display port (eDP), and a display port (DP).

[0065] For example, when the electronic device to which the display control device is applied is a folding mobile phone or the like, the display interface can be a DSI; when the electronic device to which the display control device is applied is a personal computer (PC) or the like, the display interface can be an eDP; and when the electronic device to which the display control device is applied is another device, the display interface can be a DP.

[0066] In addition, each of the at least one data transmission channel is configured to process the image to be displayed.

[0067] For example, the data transmission channel can comprise a plurality of IP cores, and can perform the operations of the aforementioned preprocessing, superimposition, post-display processing, DDIC processing, and display data stream compression processing, and the like, on the image to be displayed.

[0068] For example, the first data transmission channel is a full-featured channel as described above, and the second data transmission channel is a weakly featured channel as described above. Specifically, the first data transmission channel can perform at least one of the following on the image to be displayed: preprocessing, superimposition, and post-display processing, as well as DDIC processing and DSC processing. The second data transmission channel can perform at least one of the following on the image to be displayed: preprocessing, superimposition, and partial functions of DPP, and the second data transmission channel does not have the functions of DDIC processing and DSC processing. That is, the first data transmission channel can provide more functional processing and better display effects than the second data transmission channel.

[0069] Optionally, the display control device further comprises a processor configured to control the first switch according to a display screen of the image to be displayed in the plurality of display screens.

[0070] For example, for a dual-screen device, the display scenarios of the display screens can include a first display screen alone, a second display screen alone, and dual-screen display. The processor can "automatically detect" or "passively perceive" the display scenarios of the display screens to control the first switch. For example, the information of the display scenarios of the display screens can be stored in the registers of the display control device, and the processor can "automatically detect" the information stored in the registers to determine the display scenarios of the display screens to control the first switch to support the display scenarios. In addition, the processor can also "passively perceive" the information about the display scenarios of the display screens sent by the framework layer to detect whether the current is a single-screen scenario or a dual-screen display scenario.

[0071] FIG. 9 is a basic architecture provided by the embodiment. In order to support more application scenarios, different display scenarios provided by the embodiment of the application will be further described below in combination with the accompanying drawings. At least part of the description in the embodiments of FIGS. 10-13 can be combined with the corresponding embodiments of FIG. 9 for reference.

[0072] In a possible implementation, when the first display screen and the second display screen are both large screens, the first display screen and the second display screen both need two-way display interfaces to transmit the images to be displayed. As shown in FIG. 10, the display control device further includes a second switch, the at least one data transmission channel includes a first data transmission channel, the plurality of display interfaces includes a first display interface and a second display interface, the plurality of display screens includes a first display screen and a second display screen, and the first display interface and the second display interface are coupled with the first display screen and the second display screen through the second switch. The first switch is configured to conduct the first data transmission channel and the first display interface, and conduct the first data transmission channel and the second display interface. The second switch is configured to conduct any one of the following: the first display interface and the first display screen, and the second display interface and the first display screen; and the first display interface and the second display screen, and the second display interface and the second display screen.

[0073] Specifically, the path between the first data transmission channel and the first switch is denoted as A, the path between the first switch and the first display interface is denoted as B, the path between the first switch and the second display interface is denoted as C, the path between the first display interface and the second switch is denoted as D, the path between the second display interface and the second switch is denoted as E, the path between the second switch and the first display screen is denoted as F, and the path between the second switch and the second display screen is denoted as G. The identification mode of the paths hereinafter is the same as that of the paths of FIG. 10, and will not be described again.

[0074] Specifically, the display scenarios and implementation modes in this implementation are shown in Table 1.

[0075] Table 1

[0076] As can be seen from Table 1, when the first display screen is displayed alone, the first switch is turned on at A and B, and turned on at A and C, the second switch is turned on at D and F, and turned on at E and F, so that the first data transmission channel can transmit the image to be displayed to the first display screen through the first display interface and the second display interface at the same time. When the second display screen is displayed alone, the first switch is turned on at A and B, and turned on at A and C, the second switch is turned on at D and G, and turned on at E and G, so that the first data transmission channel can transmit the image to be displayed to the second display screen through the first display interface and the second display interface at the same time. However, this embodiment does not support dual-screen display at the same time, that is, only one display screen can normally display at the same time.

[0077] Therefore, in the scenario where both the first display screen and the second display screen need two-way display interfaces, the first display screen and the second display screen can realize time-division multiplexing of the first data transmission channel through the first switch and the second switch, and the display effect of the multi-screen device when the display screen is displayed alone can be improved.

[0078] In another possible implementation, when the first display screen and the second display screen are both small screens, and the size of the first display screen is larger than that of the second display screen, at this time, the first display screen and the second display screen both need only one display interface to transmit the image to be displayed. As shown in FIG. 11, at least one data transmission channel includes a first data transmission channel and a second data transmission channel, a first display screen and a second display screen in a plurality of display screens, a plurality of display interfaces include a first display interface and a second display interface, the first display interface is coupled with the first display screen, and the second display interface is coupled with the second display screen. The first switch is configured to perform any one of the following: turn on the first data transmission channel and the first display interface; turn on the first data transmission channel and the second display interface; and turn on the first data transmission channel and the first display interface, and turn on the second data transmission channel and the second display interface.

[0079] Specifically, the display scenarios and implementation modes in this embodiment are shown in Table 2, and the corresponding path identifiers in Table 2 are shown in FIG. 11.

[0080] Table 2

[0081] As can be seen from Table 2, when the first display screen is displayed alone, the first switch is turned on at A and C, at this time, the display control device processes the to-be-displayed image transmitted to the first display screen through the full-function first data transmission channel. When the second display screen is displayed alone, the first switch is turned on at A and D, at this time, the display control device transmits the to-be-displayed image to the second display screen through the full-function first data transmission channel. When the two screens are displayed together, the first switch is turned on at A and C at different times, and turned on at B and D, at this time, the display control device transmits the to-be-displayed image to the first display screen through the full-function first data transmission channel, and transmits the to-be-displayed image to the second display screen through the weak-function second data transmission channel.

[0082] Therefore, by time-division multiplexing the full-function first data transmission channel, the display effect of the second display screen with a smaller size can be improved, and in the scenario of displaying the two screens together, the data transmission channel can be reasonably scheduled, the chip area and resources are saved, and the overall performance is improved.

[0083] In another possible implementation, when the first display screen is a large screen and the second display screen is a small screen, at this time, the first display screen needs two display interfaces to transmit the to-be-displayed image, and the second display screen needs one display interface to transmit the to-be-displayed image. As shown in (a) of FIG. 12, the display control device further includes a second switch, the second display interface is coupled to the first display screen through the second switch, and the second display interface is further coupled to the second display screen through the second switch. The second switch is used to turn on the second display interface and the first display screen, or turn on the second display interface and the second display screen. The first switch is further used to turn on the first data transmission channel and the second display interface.

[0084] Specifically, the display scenarios and implementation manners in this implementation are shown in Table 3, and the corresponding path identifiers in Table 3 are shown in (a) of FIG. 12.

[0085] Table 3

[0086] As can be seen from Table 3, when the first display screen is displayed alone, the first switch is turned on at A and C, and turned on at A and D, and the second switch is turned on at F and G, so that the first data transmission channel can transmit the to-be-displayed image to the first display screen through the first display interface and the second display interface at the same time. When the second display screen is displayed alone, the first switch is turned on at A and D, and the second switch is turned on at F and H, so that the first data transmission channel can transmit the to-be-displayed image to the second display screen through the second display interface. However, this implementation does not support displaying the two screens together, that is, only one display screen can normally display at the same time.

[0087] As shown in (b) of FIG. 12, the display control apparatus further includes a second switch, the first display interface is coupled with the first display screen through the second switch, and the first display interface is further coupled with the second display screen through the second switch. The second switch is configured to switch on the first display interface and the first display screen, or switch on the first display interface and the second display screen.

[0088] Specifically, the display scenario and implementation of the embodiment are shown in Table 4, and the corresponding path identifiers are shown in (b) of FIG. 12.

[0089] Table 4

[0090] As can be seen from Table 4, when the first display screen is displayed alone, the first switch is switched on A and C, and switched on A and D, and the second switch is switched on E and H. Thus, the first data transmission channel can transmit the to-be-displayed image to the first display screen through the first display interface and the second display interface at the same time. When the second display screen is displayed alone, the first switch is switched on A and C, and the second switch is switched on E and G. Thus, the first data transmission channel can transmit the to-be-displayed image to the second display screen through the first display interface. However, the embodiment does not support dual-screen display, that is, only one display screen can normally display at the same time.

[0091] Thus, in the scenario where the first display screen needs two display interfaces and the second display screen needs one display interface, the first display screen and the second display screen can be time-multiplexed to the first data transmission channel through the first switch and the second switch, and the display effect of the multi-screen device when the display screen is displayed alone can be improved.

[0092] In another embodiment, when the first display screen is a large screen and the second display screen is a small screen, the first display screen needs two display interfaces to transmit the to-be-displayed image, and the second display screen needs one display interface to transmit the to-be-displayed image. As shown in FIG. 13, the plurality of display interfaces further includes a third display interface, and the third display interface is coupled with the first display screen. The first switch is further configured to switch on the first data transmission channel and the third display interface.

[0093] Specifically, the display scenario and implementation of the embodiment are shown in Table 5, and the corresponding path identifiers are shown in FIG. 13.

[0094] Table 5

[0095] As can be seen from Table 5, when the first display screen is displayed alone, the first switch is turned on at A and C, and turned on at A and D, at this time, the first data transmission channel can transmit the image to be displayed to the first display screen through the first display interface and the third display interface at the same time. When the second display screen is displayed alone, the first switch is turned on at A and E, at this time, the first data transmission channel can transmit the image to be displayed to the second display screen through the second display interface. When the two screens are displayed together, the first switch is turned on at A and C, turned on at A and D, and turned on at B and E, at this time, the first data transmission channel can transmit the image to be displayed to the first display screen through the first display interface and the third display interface at the same time, and the second data transmission channel can transmit the image to be displayed to the second display screen through the second display interface.

[0096] Therefore, in the scenario that the first display screen needs two display interfaces and the second display screen needs one display interface, the time division multiplexing of the first display screen and the second display screen on the first data transmission channel can be realized through the first switch, and the display effect of the multi-screen device when the display screens are displayed alone can be improved.

[0097] The display control method applied to the display control device provided in the embodiments of the present application, as shown in FIG. 14, includes the following processes.

[0098] S1401, the display control device processes the image to be displayed through each data transmission channel in the at least one data transmission channel.

[0099] S1402, the display control device turns on at least one data transmission channel and at least one display interface in the plurality of display interfaces through the first switch.

[0100] Each display interface in the plurality of display interfaces is coupled to at least one display screen in the plurality of display screens.

[0101] Optionally, S1402 can include that the display control device turns on the first data transmission channel and the first display interface through the first switch, and turns on the first data transmission channel and the second display interface.

[0102] The display control method further includes that the display control device turns on the first display interface and the first display screen, and turns on the second display interface and the first display screen, or turns on the first display interface and the second display screen, and turns on the second display interface and the second display screen through the second switch.

[0103] Optionally, S1402 can include: the display control apparatus turning on the first data transmission channel and the first display interface, the first data transmission channel and the second display interface, or the first data transmission channel and the first display interface and the second data transmission channel and the second display interface through the first switch.

[0104] Optionally, the display control method can further include: the display control apparatus turning on the second display interface and the first display screen or the second display interface and the second display screen through the second switch.

[0105] S1402 can further include: turning on the first data transmission channel and the second display interface.

[0106] Optionally, S1402 can further include: the display control apparatus turning on the first data transmission channel and the third display interface through the first switch.

[0107] Optionally, the display control method can further include: the display control apparatus controlling the first switch according to the display screen of the image to be displayed in the plurality of display screens through the processor.

[0108] Embodiments of the present application further provide a computer storage medium having computer instructions stored therein, when the computer instructions are run on an electronic device, the electronic device is caused to perform the related method steps to implement the display control method in the above embodiments.

[0109] Embodiments of the present application further provide a computer program product, when the computer program product is run on a computer, the computer is caused to perform the related steps to implement the display control method performed by the electronic device in the above embodiments.

[0110] In addition, embodiments of the present application further provide a device, which can be a chip, a component or a module, and the device can include a processor and a memory connected to each other; wherein the memory is configured to store computer execution instructions, and when the device is running, the processor can execute the computer execution instructions stored in the memory to enable the chip to perform the display control method performed by the electronic device in the above method embodiments.

[0111] The display control apparatus, the electronic device, the computer storage medium, the computer program product or the chip provided by the embodiments can be used to execute the corresponding method provided above, and thus the beneficial effects achieved thereby can refer to the beneficial effects of the corresponding method provided above, which will not be described herein again.

[0112] The at least one data transmission channel, the first switch and the plurality of display interfaces summarized in the above embodiments can be located on a chip, i.e., an SOC. The second switch can be located outside the chip, and the processor mentioned earlier can also be located on the chip or exist as another independent chip, and the present embodiment does not limit this.

[0113] Through the description of the above embodiments, those skilled in the art can understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example for illustration, and in actual application, the above functions can be completed by different functional modules according to needs, i.e., the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

[0114] In several embodiments provided in the present application, it should be understood that the disclosed device and method can be implemented in other ways. For example, the device embodiment described above is only schematic, for example, the division of the modules or units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another device, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0115] The units described as separate components can or can not be physically separated, and the components shown as units can be one physical unit or multiple physical units, i.e., can be located in one place or can be distributed to multiple different places. Part or all of the units can be selected according to actual needs to achieve the purpose of the present embodiment scheme.

[0116] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0117] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application essentially or say the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The software product is stored in a storage medium, including a plurality of instructions to make a device (which can be a single-chip microcomputer, a chip, etc.) or a processor execute all or part of the steps of the method described in various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0118] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A display control device, characterized in that, The display control device comprises: a first switch, at least one data transmission channel, and a plurality of display interfaces, the at least one data transmission channel being coupled with the first switch and the plurality of display interfaces; the first switch is configured to switch on the at least one data transmission channel and at least one display interface of the plurality of display interfaces; each data transmission channel of the at least one data transmission channel is configured to process a to-be-displayed image; each display interface of the plurality of display interfaces is coupled to at least one display screen of a plurality of display screens.

2. The display control device according to claim 1, characterized by The display control device further comprises a second switch, the at least one data transmission channel comprises a first data transmission channel, the plurality of display interfaces comprises a first display interface and a second display interface, the plurality of display screens comprises a first display screen and a second display screen, and the first display interface and the second display interface are coupled with the first display screen and the second display screen through the second switch; the first data transmission channel is configured to perform at least one of the following on the to-be-displayed image: pre-processing, superimposition, and display post-processing (DPP), and perform display integrated driving circuit (DDIC) processing and display data stream compression (DSC) processing; the first switch is configured to switch on the first data transmission channel and the first display interface, and switch on the first data transmission channel and the second display interface; the second switch is configured to perform any of the following: switch on the first display interface and the first display screen, and switch on the second display interface and the first display screen; and switch on the first display interface and the second display screen, and switch on the second display interface and the second display screen.

3. The display control device according to claim 1, wherein The at least one data transmission channel comprises a first data transmission channel and a second data transmission channel, the plurality of display interfaces comprises a first display interface and a second display interface, the plurality of display screens comprises a first display screen and a second display screen, the first display interface is coupled with the first display screen, and the second display interface is coupled with the second display screen; the first data transmission channel is configured to perform at least one of the following on the to-be-displayed image: pre-processing, superimposition, and display post-processing (DPP), and perform display integrated driving circuit (DDIC) processing and display data stream compression (DSC) processing; the second data transmission channel is configured to perform at least one of the following on the to-be-displayed image: pre-processing, superimposition, and partial functions of DPP, and the second data transmission channel does not have the functions of the DDIC processing and the DSC processing; the first switch is configured to perform any of the following: switch on the first data transmission channel and the first display interface; switch on the first data transmission channel and the second display interface; and switch on the first data transmission channel and the first display interface, and switch on the second data transmission channel and the second display interface. ​ 4. The display control device according to claim 3, characterized by The display control apparatus further comprises a second switch, the second display interface is coupled to the first display screen through the second switch, and the second display interface is further coupled to the second display screen through the second switch; The second switch is configured to connect the second display interface to the first display screen or connect the second display interface to the second display screen. The first switch is further configured to connect the first data transmission channel to the second display interface.

5. The display control device according to claim 3, wherein The plurality of display interfaces further comprises a third display interface, and the third display interface is coupled to the first display screen. The first switch is further configured to connect the first data transmission channel to the third display interface.

6. The display control device according to any one of claims 1 to 5, characterized by Each of the plurality of display interfaces comprises any one of a display serial interface (DSI), an embedded display port (eDP), and a display port (DP).

7. The display control device according to any one of claims 1 to 6, wherein The display control apparatus further comprises: a processor configured to control the first switch according to a display screen of the plurality of display screens on which an image to be displayed is displayed.

8. An electronic device, comprising: The display control apparatus comprises: a plurality of display screens and the display control apparatus according to any one of claims 1-7.

9. A display control method characterized by comprising: The method is applied to a display control apparatus, and the display control apparatus comprises a first switch, at least one data transmission channel, and a plurality of display interfaces. The method comprises: processing an image to be displayed through each of the at least one data transmission channel; connecting the at least one data transmission channel to at least one of the plurality of display interfaces through the first switch; Each of the plurality of display interfaces is coupled to at least one of the plurality of display screens.

10. A computer-readable storage medium, characterized in that, The computer instructions, when executed on an electronic device, cause the electronic device to perform the method of claim 9. The computer instructions, when executed on an electronic device, cause the electronic device to perform the method of claim 9.

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