CN113453079B

CN113453079B - Control method for returning double-system-size double-screen application and display equipment

Info

Publication number: CN113453079B
Application number: CN202010212754.9A
Authority: CN
Inventors: 李东航; 苑衍梅; 付友苹
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2022-08-26
Anticipated expiration: 2040-03-24
Also published as: CN113453079A

Abstract

The application discloses a control method and display equipment for returning double-screen applications with double system sizes, wherein a first controller receives and responds to an exit event broadcast generated by a first application to acquire information of a specified application; the second controller inquires whether the designated application exists in a display list of the second display according to the information of the designated application and then generates an HDMI switching identifier; the first controller ends the display of the display content of the first application and displays the display content of the specified application on the display corresponding to the HDMI switching identifier. Therefore, according to the display device and the method provided by the invention, after the first application responds to the return instruction, the first controller obtains the display content of the designated application displayed by the first display and displays the display content on the first display, and the second controller obtains the display content of the previous application displayed by the second display and displays the display content on the second display, so that the coordinated display of the dual-system dual-screen application during the return is realized, and the large and small dual-screens can accurately display the corresponding application content.

Description

Control method for returning double-system-size double-screen application and display equipment

Technical Field

The application relates to the technical field of dual-system dual-screen application display switching, in particular to a control method and display equipment for dual-system-size dual-screen application return.

Background

With the continuous development of communication technology, terminal devices such as computers, smart phones and display devices have become more and more popular. In addition, as the demand of the user on the application experience is higher and higher, the requirements on various performance indexes of the operating system of the terminal equipment are also higher, and in order to provide rich display contents, it is possible to set a dual system and a dual screen on the Android terminal equipment. The dual system comprises a first controller and a second controller, wherein the two controllers are both configured with independent application programs for running, and the first controller and the second controller can realize connection, communication and power supply through a plurality of interfaces of different types. The double screens comprise a first display and a second display, and the first display is used as a small screen and used for showing the social ability and information prompt of the user; the second display is used as a large screen for displaying the display content of the corresponding application.

On Android terminal equipment, aiming at a new form of double screens of double systems, the capability of the double systems needs to be displayed to a user at the same time. The display content applied in the second controller is presented on the large screen through one path of HDMI, and the display content applied in the first controller is presented on the small screen through the other path of HDMI. While there are also applications in the first controller that can be presented on the large screen, for example, a camera application can be connected to the large screen through an HDMI Switch connected to the first controller, and at this time, no image will be displayed on the small screen, and the small screen content will be displayed on the large screen.

For example, when a user has a video chat, the display content of a video chat application (application in the first controller) needs to be displayed through a large screen instead of being displayed through a small screen. If the user exits the video chat, for example, the user triggers a return key through a remote controller, both systems may respond to the return instruction and end the display of the current application because both systems are configured with a processing policy for the return operation.

However, if both systems respond to the return instruction and end the current application, the operations of both systems will conflict, and it is impossible to determine which system responds to the return instruction and generates an operation that is a valid operation. Moreover, after the current application is displayed (the current application responds to the return instruction and returns), the two systems cannot accurately control the content display of the corresponding display, for example, whether the large screen directly displays the display content of the application in the second controller or other interfaces, and whether the small screen directly displays the display content of the application in the first controller or displays a homepage cannot be determined. Therefore, in a scene that a response return instruction requires that an application end displaying, the conventional display device cannot coordinate and control the double screens of the double systems, so that the application content cannot be correctly displayed on the corresponding display.

Disclosure of Invention

The application provides a control method for returning a double-system-size double-screen application and a display device, and aims to solve the problem that the application content cannot be correctly displayed on a corresponding display due to the fact that the conventional display device cannot perform coordination control on the double-system-size double-screen application.

In a first aspect, the present application provides a display device comprising:

a first display communicatively connected to the first controller, the first display configured to display content of a first application, the first application being an application configured in the first controller;

a second display communicatively connected to a second controller, the second display configured to display content of a first application or display content of a second application, the second application being an application configured in the second controller;

a second controller configured to receive information of a specific application transmitted by the first controller, the specific application being a last application displayed before the first application is displayed in the first controller;

inquiring whether the specified application exists in a second display list or not based on the information of the specified application, wherein the second display list comprises a second application and a first application needing to be displayed on a second display;

generating an HDMI switching identifier corresponding to the query result, and sending the HDMI switching identifier to the first controller, wherein the HDMI switching identifier is used for representing whether the display content of the specified application needs to be displayed on the first display or the second display;

a first controller configured to receive an exit event broadcast generated by a first application in response to a return instruction for ending display of display content of the first application;

responding to the exit event broadcast, acquiring information of a specified application, and sending the information of the specified application to a second controller;

receiving an HDMI switching identifier generated after the second controller inquires whether the designated application exists in a second display list according to the information of the designated application;

and ending the display of the display content of the first application, acquiring the display content of the specified application, and displaying the display content of the specified application on a display corresponding to the HDMI switching identifier.

Further, the first controller is further configured to:

when the designated application is an application displayed on a first display, and the HDMI switching identifier represents that the display content of the designated application needs to be displayed on the first display, acquiring a current HDMI output identifier corresponding to the display content of the first application when the display content of the first application is displayed, wherein the HDMI output identifier is used for representing whether the display content of the first application is displayed on the first display or a second display;

judging whether the HDMI switching identifier is consistent with the current HDMI output identifier;

and if the HDMI switching identifier is not consistent with the current HDMI output identifier, displaying the display content of the specified application on a first display corresponding to the HDMI switching identifier.

Further, the second controller is further configured to:

searching for a previous application displayed on the second display, wherein the previous application is the last application displayed on the second display before the first application is displayed;

and after the display of the display content of the first application is finished, acquiring the display content of the prior application, and displaying the display content of the prior application on a second display.

Further, the first controller is further configured to:

when the designated application is an application needing to be displayed on a second display and the HDMI switching identifier represents that the display content of the designated application needs to be displayed on the second display, acquiring a current HDMI output identifier corresponding to the first application, wherein the HDMI output identifier is used for representing whether the display content of the first application is displayed on the first display or the second display;

and if the HDMI switching identifier is consistent with the current HDMI output identifier, displaying the display content of the specified application on a second display corresponding to the HDMI switching identifier.

Further, the second controller is further configured to:

the information of the specified application comprises a specified application package name, and the display list of the second display comprises each application package name required to be displayed on the second display;

matching the specified app package name with each app package name in the second display list;

determining that a specified application exists in the second display list if an application package name exists in the second display list that is consistent with the specified application package name;

determining that the designated application does not exist in the second display list if any application package name does not exist in the second display list and the designated application package name is consistent.

Further, the second controller is further configured to:

based on the information of the specified application, if the query result in the second display list is that the specified application does not exist;

and generating an HDMI switching identifier according to the query result without the specified application, wherein the HDMI switching identifier is used for representing that the display content of the specified application needs to be displayed on the first display.

Further, the second controller is further configured to:

based on the information of the specified application, if the query result in the second display list is that the specified application exists;

and generating an HDMI switching identifier according to the query result with the specified application, wherein the HDMI switching identifier is used for representing that the display content of the specified application needs to be displayed on a second display.

Further, the first display is in communication connection with the second controller; and the first controller is further configured to:

and sending a first display backlight starting command to the second controller, wherein the first display backlight starting command is used for the second controller to start the backlight of the first display in the first controller.

Further, the second controller is further configured to:

receiving a first display backlight starting instruction sent by the first controller, wherein the first display backlight starting instruction is used for starting the backlight of a first display in the first controller;

and responding to the instruction for starting the first display backlight, and starting the backlight of the first display in the first controller.

In a second aspect, the present application provides a control method for returning a dual-system-size dual-screen application, which is applied to a first controller, and includes the following steps:

receiving an exit event broadcast generated by a first application in response to a return instruction for ending display of display content of the first application;

responding to the quit event broadcast, acquiring information of a specified application, and sending the information of the specified application to a second controller, wherein the specified application is the last application displayed before the first application is displayed in the first controller;

receiving an HDMI switching identifier generated by the second controller after the second controller inquires whether the designated application exists in a second display list according to the information of the designated application, wherein the second display list comprises a second application and a first application needing to be displayed on a second display, and the HDMI switching identifier is used for representing whether the display content of the designated application needs to be displayed on the first display or the second display;

In a third aspect, the present application provides a method for controlling return of a dual-system-size dual-screen application, which is applied to a second controller, and includes the following steps:

receiving information of a designated application sent by a first controller, wherein the designated application refers to the last application displayed before the first application is displayed in the first controller;

inquiring whether the specified application exists in a second display list or not based on the information of the specified application, wherein the second display list comprises the second application and the first application needing to be displayed on the second display;

generating an HDMI switching identifier corresponding to the query result, wherein the HDMI switching identifier is used for representing whether the display content of the specified application needs to be displayed on the first display or the second display;

and sending the HDMI switching identifier to a first controller so that the first controller displays the display content of the specified application on a display corresponding to the HDMI switching identifier.

As can be seen from the foregoing technical solutions, in the control method and the display device for returning a dual-screen application with a dual system size provided in the embodiments of the present invention, the first controller is configured to receive an exit event broadcast generated when the first application responds to a return instruction, so as to obtain information of a specific application, and send the information to the second controller; the second controller inquires whether the designated application exists in a display list of the second display according to the information of the designated application and then generates an HDMI switching identifier; the first controller ends the display of the display content of the first application and displays the display content of the specified application on the display corresponding to the HDMI switching identifier. As can be seen, according to the display device and the control method provided in the embodiments of the present invention, after the first application responds to the return instruction, the first controller may obtain the display content of the designated application displayed before the first display and display the display content on the first display, and the second controller may obtain the display content of the previous application displayed before the second display displays the first application and display the display content on the second display, so as to implement coordinated display of the dual-system application on the dual-display when the application returns, and ensure that the large and small dual-screens can accurately display the corresponding application content.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus according to an exemplary embodiment;

fig. 2 is a block diagram schematically showing a configuration of the control apparatus 100 according to an exemplary embodiment;

fig. 3 is a diagram schematically illustrating a hardware configuration of a hardware system in the display apparatus 200 according to the exemplary embodiment;

FIG. 4 is a schematic diagram illustrating the connection of a power strip to a load;

fig. 5 is a block diagram illustrating an exemplary hardware architecture according to the display device 200 shown in fig. 3;

fig. 6 is a diagram exemplarily showing a functional configuration of a display device according to an exemplary embodiment;

fig. 7 is a block diagram schematically showing a configuration of a software system in the display apparatus 200 according to the exemplary embodiment;

FIG. 8 is a block diagram illustrating the architecture of the application layer of a display device in accordance with an exemplary embodiment;

FIG. 9 is a schematic diagram illustrating a user interface in the display device 200 according to an exemplary embodiment;

FIG. 10 is a block diagram illustrating a display device presenting dual system dual screens in accordance with an exemplary embodiment;

fig. 11 is a block diagram schematically showing the structure of a display device according to an exemplary embodiment;

FIG. 12 is a flow chart illustrating a method of controlling return of a dual system size dual screen application in accordance with an exemplary embodiment;

FIG. 13 is a data flow diagram illustrating a control method for dual system size dual screen application return in accordance with an exemplary embodiment;

FIG. 14 is another flow chart illustrating a method of controlling return of a dual system size dual screen application in accordance with an exemplary embodiment;

FIG. 15 is a flow chart illustrating a method of querying a second display list for the presence of a specified application in accordance with the illustrative embodiment;

FIG. 16 is a flow diagram illustrating a method of displaying display content for a specified application in accordance with an illustrative embodiment;

fig. 17 is a flowchart illustrating a content display method of controlling a second display according to an exemplary embodiment;

FIG. 18 is a flow chart illustrating another method of displaying display content for a specified application in accordance with an illustrative embodiment;

another data flow diagram illustrating a control method for dual system size dual screen application return in accordance with an exemplary embodiment is shown in fig. 19.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the 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 present application is not limited to a display device having a dual system and dual display structure as shown in fig. 1 to 7, that is, a display device having a first controller (first hardware system), a second controller (second hardware system), a first display, and a second display, and a display device having a non-dual system, that is, having one controller (hardware system), or having more than two controllers (hardware systems).

In a specific implementation manner of the present application, a display device with dual systems is used to describe the technical solution of the present application. The structure, function, implementation, and the like of the display device having the dual system hardware structure will be described in detail first.

For the convenience of users, various external device interfaces are usually provided on the display device to facilitate connection of different peripheral devices or cables to implement corresponding functions. When a high-definition camera is connected to an interface of the display device, if a hardware system of the display device does not have a hardware interface of a high-pixel camera receiving the source code, data received by the camera cannot be displayed on a display screen of the display device.

Furthermore, due to the hardware structure, the hardware system of the conventional display device only supports one path of hard decoding resources, and usually only supports video decoding with a resolution of 4K at most, so when a user wants to perform video chat while watching a network television, the user needs to use the hard decoding resources (usually GPU in the hardware system) to decode the network video without reducing the definition of the network video screen, and in this case, the user can only process the video chat screen by using a general-purpose processor (e.g. CPU) in the hardware system to perform soft decoding on the video.

The soft decoding is adopted to process the video chat picture, so that the data processing burden of a CPU (central processing unit) can be greatly increased, and when the data processing burden of the CPU is too heavy, the problem of picture blocking or unsmooth flow can occur. Further, due to the data processing capability of the CPU, when the CPU performs soft decoding on the video chat screen, multi-channel video calls cannot be generally implemented, and when a user wants to perform video chat with multiple other users in the same chat scene, access is blocked.

In view of the above aspects, to overcome the above drawbacks, the present application discloses a dual hardware system architecture to implement multiple channels of video chat data (at least one channel of local video).

The concept to which the present application relates will be first explained below with reference to the drawings. It should be noted that the following descriptions of the concepts are only intended to make the contents of the present application more easily understood, and do not represent limitations on the scope of the present application.

The term "module," as used in various embodiments of the present application, may refer to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.

The term "remote control" as used in the embodiments of the present application refers to a component of an electronic device (such as the display device disclosed in the present application) that is capable of wirelessly controlling the electronic device, typically over a short distance. The component may typically be connected to the electronic device using infrared and/or Radio Frequency (RF) signals and/or bluetooth, and may also include functional modules such as WiFi, wireless USB, bluetooth, motion sensors, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in the common remote control device with the user interface in the touch screen.

The term "gesture" as used in the embodiments of the present application refers to a user behavior used to express an intended idea, action, purpose, or result through a change in hand shape or an action such as hand movement.

The term "hardware system" used in the embodiments of the present application may refer to a physical component having computing, controlling, storing, inputting and outputting functions, which is formed by a mechanical, optical, electrical and magnetic device such as an Integrated Circuit (IC), a Printed Circuit Board (PCB) and the like. In various embodiments of the present application, a hardware system may also be referred to as a motherboard (or chip).

A schematic diagram of an operation scenario between a display device and a control apparatus is exemplarily shown in fig. 1. As shown in fig. 1, a user may operate the display apparatus 200 through the control device 100.

The control device 100 may be a remote controller 100A, which can communicate with the display device 200 through an infrared protocol communication, a bluetooth protocol communication, a ZigBee (ZigBee) protocol communication, or other short-range communication, and is used to control the display device 200 through a wireless or other wired manner. The user may input a user instruction through a key on the remote controller 100A, voice input, control panel input, or the like to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, an on/off key, etc. on the remote controller 100A to control the functions of the display device 200.

The control device 100 may also be an intelligent device, such as a mobile terminal 100B, a tablet computer, a notebook computer, and the like, which may communicate with the display device 200 through a Local Area Network (LAN), a Wide Area Network (WAN), a Wireless Local Area Network (WLAN), or other networks, and implement control of the display device 200 through an application program corresponding to the display device 200. For example, the display device 200 is controlled using an application program running on the smart device. The application may provide various controls to the User through an intuitive User Interface (UI) on a screen associated with the smart device.

For example, the mobile terminal 100B and the display device 200 may each be installed with a software application, so that connection communication between the two may be implemented through a network communication protocol, and thus, the purpose of one-to-one control operation and data communication may be implemented. Such as: a control instruction protocol can be established between the mobile terminal 100B and the display device 200, a remote control keyboard is synchronized to the mobile terminal 100B, and the function of controlling the display device 200 is realized by controlling a user interface on the mobile terminal 100B; the audio and video content displayed on the mobile terminal 100B may also be transmitted to the display device 200, so as to implement a synchronous display function.

As shown in fig. 1, the display apparatus 200 may also perform data communication with the server 300 through various communication means. In various embodiments of the present application, the display device 200 may be allowed to be in a wired or wireless communication connection with the server 300 via a local area network, a wireless local area network, or other network. The server 300 may provide various contents and interactions to the display apparatus 200.

Illustratively, the display device 200 receives software Program updates, or accesses a remotely stored digital media library, by sending and receiving information, and Electronic Program Guide (EPG) interactions. The servers 300 may be a group or groups, and may be one or more types of servers. Other web service contents such as a video on demand and an advertisement service are provided through the server 300.

The display device 200 includes a first display 201 and a second display 202, wherein the first display 201 and the second display 202 are independent from each other, and the first display 201 and the second display 202 are respectively controlled by different hardware systems.

The first display 201 and the second display 202 may be used to display different screen contents. For example, the first display 201 may be used for screen display of conventional television programs, and the second display 202 may be used for screen display of auxiliary information such as notification type messages, voice assistants, and the like.

Alternatively, the content displayed by the first display 201 and the content displayed by the second display 202 may be independent of each other and not affected by each other. For example, when the first display 201 plays a television program, the second display 202 may display information such as time, weather, temperature, reminder messages, and the like, which are not related to the television program.

Optionally, there may also be an association between the content displayed by the first display 201 and the content displayed by the second display 202. For example, when the first display 201 plays a main screen of a video chat, the second display 202 may display information such as an avatar, a chat duration, and the like of a user currently accessing the video chat.

Optionally, part or all of the content displayed by the second display 202 may be adjusted to be displayed by the first display 201. For example, the information such as time, weather, temperature, reminder message, etc. displayed on the first display 201 may be adjusted to be displayed on the first display 201, while other information is displayed on the second display 202.

In addition, the first display 201 displays a multi-party interactive picture while displaying a traditional television program picture, and the multi-party interactive picture does not block the traditional television program picture. The display mode of the traditional television program picture and the multi-party interactive picture is not limited by the application. For example, the position and the size of the traditional television program picture and the multi-party interactive picture can be set according to the priority of the traditional television program picture and the multi-party interactive picture.

Taking the example that the priority of the traditional television program picture is higher than that of the multi-party interactive picture, the area of the traditional television program picture is larger than that of the multi-party interactive picture, and the multi-party interactive picture can be positioned at one side of the traditional television program picture and can also be arranged at one corner of the multi-party interactive picture in a floating manner.

The display device 200, in one aspect, may be a liquid crystal display, an oled (organic Light Emitting diode) display, a projection display device; in another aspect, the display system may be a smart television or a display and a set-top box. The specific type, size, resolution, etc. of the display device 200 are not limited, and it will be understood by those skilled in the art that the display device 200 may be modified in its performance and configuration as desired.

The display apparatus 200 may additionally provide an intelligent network television function providing a computer support function in addition to the broadcast receiving television function. Such as a network television, a smart television, an Internet Protocol Television (IPTV), etc. In some embodiments, the display device may not have a broadcast receiving television function.

As shown in fig. 1, a camera may be connected or disposed on the display device 200, and is used to present a picture taken by the camera on a display screen of the display device or other display devices, so as to implement interactive chat between users. Specifically, the picture shot by the camera may be displayed on the display device in a full screen, a half screen, or in any selectable area.

As an optional connection mode, the camera is connected with the rear shell of the display device through the connecting plate, and is fixedly installed in the middle of the upper side of the rear shell of the display device.

As another optional connection mode, the camera is connected to the rear shell of the display device through a connection board or another conceivable connector, the camera is capable of lifting and descending, a lifting motor is installed on the connector, when a user wants to use the camera or an application program wants to use the camera, the camera is lifted out of the display device, and when the camera is not needed, the camera can be embedded into the rear shell, so that the camera is protected from being damaged, and privacy safety of the user is protected.

As an embodiment, the number of the cameras used in the present application may be 1600 ten thousand, so as to achieve the purpose of ultra high definition display. In actual use, cameras higher or lower than 1600 ten thousand pixels may also be used.

After the camera is installed on the display device, the contents displayed by different application scenes of the display device can be fused in various different modes, so that the function which cannot be realized by the traditional display device is achieved.

Illustratively, a user may conduct a video chat with at least one other user while watching a video program. The presentation of the video program may be as a background frame with a window of video chat displayed over the background frame. The function is called 'chat while watching'.

Optionally, in a scene of "chat while watching", at least one video chat is performed across terminals while watching a live video or a network video.

In another example, a user can conduct a video chat with at least one other user while entering the educational application for learning. For example, a student may interact remotely with a teacher while learning content in an educational application. Vividly, this function can be called "chatting while learning".

In another example, a user conducts a video chat with a player entering a card game while playing the game. For example, a player may enable remote interaction with other players when entering a gaming application to participate in a game. Figuratively, this function may be referred to as "watch while playing".

Optionally, the game scene is fused with the video picture, the portrait in the video picture is scratched and displayed in the game picture, and the user experience is improved.

Optionally, in the motion sensing game (such as ball hitting, boxing, running and dancing), the posture and the motion of the human body, the limb detection and tracking and the detection of the key point data of the human skeleton are obtained through the camera, and then the detection is fused with the animation in the game, so that the game of the scenes such as sports and dancing is realized.

In another example, a user may interact with at least one other user in a karaoke application in video and voice. Vividly, this function can be called "sing while watching". Optionally, when at least one user enters the application in a chat scenario, multiple users may jointly complete recording of a song.

In another example, a user may turn on a camera locally to take pictures and videos, figurative, which may be referred to as "looking into the mirror".

In other examples, more or less functionality may be added. The function of the display device is not particularly limited in the present application.

Fig. 2 is a block diagram illustrating the configuration of the control device 100. As shown in fig. 2, the control device 100 includes a controller 110, a communicator 130, a user input/output interface 140, a memory 190, and a power supply 180.

The control apparatus 100 is configured to control the display device 200, and to receive an input operation instruction from a user, and convert the operation instruction into an instruction recognizable and responsive by the display device 200, and to mediate interaction between the user and the display device 200. Such as: the user operates the channel up/down key on the control device 100, and the display device 200 responds to the channel up/down operation.

In some embodiments, the control device 100 may be a smart device. Such as: the control apparatus 100 may install various applications that control the display device 200 according to user demands.

In some embodiments, as shown in fig. 1, the mobile terminal 100B or other intelligent electronic device may function similar to the control apparatus 100 after installing an application for manipulating the display device 200. Such as: the user may implement the functions of controlling the physical keys of the apparatus 100 by installing applications, various function keys or virtual buttons of a graphical user interface available on the mobile terminal 100B or other intelligent electronic devices.

The controller 110 includes a processor 112, a RAM 113 and a ROM 114, a communication interface, and a communication bus. The controller 110 is used to control the operation of the control device 100, as well as the internal components for communication and coordination and external and internal data processing functions.

The communicator 130 enables communication of control signals and data signals with the display apparatus 200 under the control of the controller 110. Such as: the received user input signal is transmitted to the display apparatus 200. The communicator 130 may include at least one of a WIFI module 131, a bluetooth module 132, an NFC module 133, and the like.

A user input/output interface 140, wherein the input interface includes at least one of a microphone 141, a touch pad 142, a sensor 143, a button 144, a camera 145, and the like. Such as: the user can realize a user instruction input function through actions such as voice, touch, gesture, pressing, and the like, and the input interface converts the received analog signal into a digital signal and converts the digital signal into a corresponding instruction signal, and sends the instruction signal to the display device 200.

The output interface includes an interface that transmits the received user instruction to the display apparatus 200. In some embodiments, the interface may be an infrared interface or a radio frequency interface. Such as: when the infrared signal interface is used, the user input instruction needs to be converted into an infrared control signal according to an infrared control protocol, and the infrared control signal is sent to the display device 200 through the infrared sending module. The following steps are repeated: when the rf signal interface is used, a user input command needs to be converted into a digital signal, and then the digital signal is modulated according to the rf control signal modulation protocol and then transmitted to the display device 200 through the rf transmitting terminal.

In some embodiments, the control device 100 includes at least one of a communicator 130 and a user input/output interface 140. The communicator 130 is configured in the control device 100, such as: the WIFI module, the Bluetooth module, the NFC module and the like can encode the user input command through a WIFI protocol, a Bluetooth protocol or an NFC protocol and send the encoded user input command to the display device 200.

And a memory 190 for storing various operation programs, data and applications for driving and controlling the control apparatus 100 under the control of the controller 110. The memory 190 may store various control signal commands input by a user.

And a power supply 180 for providing operation power support for each electrical component of the control device 100 under the control of the controller 110. The power supply 180 may be powered by a battery and associated control circuitry.

Fig. 3 is a schematic diagram illustrating a hardware structure of a hardware system in the display device 200. For convenience of explanation, the display device 200 in fig. 3 is illustrated by taking a liquid crystal display as an example.

As shown in fig. 3, the display device 200 includes: the display panel comprises a first panel 11, a first backlight assembly 21, a main board 31, an interactive board 32, a first display driving board 33, a second panel 12, a second backlight assembly 22, a second display driving board 34, a power board 4, a key board 35, a first rear shell 51, a second rear shell 52 and a base 6.

The first panel 11 is used for presenting the picture of the first display 201 to the user. The first backlight assembly 21 is disposed under the first panel 11, and is generally an optical assembly for supplying sufficient light source with uniform brightness and distribution to enable the first panel 11 to normally display images. The first backlight assembly 21 further includes a first back plate (not shown). The main board 31, the interactive board 32, the first display driving board 33 and the power board 4 are disposed on the first back board, and some convex hull structures are typically formed by stamping on the first back board. The main board 31, the interactive board 32, the first display driving board 33 and the power board 4 are fixed on the convex hull through screws or hooks. The main board 31, the interactive board 32, the first display driving board 33 and the power board 4 may be disposed on one board, or may be disposed on different boards. The first rear case 51 covers the first panel 11 to hide the parts of the display device 200, such as the first backlight assembly 21, the main board 31, the interactive board 32, the first display driving board 33, and the power board 4, and to achieve an aesthetic effect.

The first display driving board 33 mainly functions to: the multilevel backlight partition control is performed through the PWM signal and the lcaldimeming signal transmitted by the first controller on the motherboard 31, and the control is changed according to the image content, and after the handshake is established between the first controller on the motherboard 31 and the VbyOne display signal transmitted by the first controller on the motherboard 31 is received, and the VbyOne display signal is converted into the LVDS signal, so that the image display of the first display 201 is realized.

The base 6 is used for supporting the display device 200, and it should be noted that the drawings only show one type of base design, and those skilled in the art can design different types of bases according to the product requirements.

The second panel 12 is used to present the screen of the second display 202 to the user. The second backlight assembly 22 is disposed under the second panel 12, and is generally an optical assembly for providing sufficient brightness and uniform light distribution to enable the second panel 12 to normally display images. The second backlight assembly 22 further includes a second back plate (not shown). Second display driver board 34 is disposed on the second backplane, typically with some convex hull structures stamped thereon. The second display driving board 34 is fixed to the convex bag by a screw or a hook. The second display driving board 34 may be provided on one board or may be provided on different boards, respectively. The second rear case 52 covers the second panel 12 to hide the second backlight assembly 22, the adapter driving board (not shown), the second display driving board 34, the key board 35, and other parts of the display device 200, thereby achieving an aesthetic effect.

Optionally, fig. 3 further includes a key sheet 35, where the key sheet 35 may be disposed on the first back plate or the second back plate, which is not limited in this application.

In addition, the display device 200 further includes a sound reproducing means (not shown in the figure), such as an audio component, e.g., an I2S interface including a power Amplifier (AMP) and a Speaker (Speaker), etc., for realizing reproduction of sound. Usually, the sound components are capable of realizing sound output of at least two sound channels; when the panoramic surround effect is to be achieved, a plurality of acoustic components are required to be arranged to output sounds of a plurality of sound channels, and a detailed description thereof is omitted.

It should be noted that the display device 200 may also adopt an OLED display screen, so that the template included in the display device 200 is changed accordingly, which is not described herein too much.

Fig. 4 schematically illustrates a connection relationship between a power panel and a load, and as shown IN fig. 4, the power panel 4 includes an input terminal IN and an output terminal OUT (a first output terminal OUT1, a second output terminal OUT2, a third output terminal OUT3, a fourth output terminal OUT4 and a fifth output terminal OUT5 are shown IN the figure), where the input terminal IN is connected to a commercial power, the output terminal OUT is connected to the load, for example, a first output terminal OUT1 is connected to a light emitting element (such as a light bar or a self-light emitting device), a second output terminal OUT2 is connected to an audio component, a third output terminal OUT3 is connected to the main board 31, a fourth output terminal OUT4 is connected to the first display driving board 33, and a fifth output terminal OUT5 is connected to the first backlight component 21. The power supply board 4 needs to convert ac power into dc power required by the load, and the dc power is usually in different specifications, such as 18V for audio components, 12V/18V for panel, etc.

For ease of description, one hardware system in a dual hardware system architecture will be referred to hereinafter as a first hardware system or a first controller, and the other hardware system will be referred to hereinafter as a second hardware system or a second controller. The first controller comprises various processors and various interfaces of the first controller, and the second controller comprises various processors and various interfaces of the second controller. The first controller and the second controller may each have a relatively independent operating system installed therein, and the operating system of the first controller and the operating system of the second controller may communicate with each other through a communication protocol, which is as follows: the frame layer of the operating system of the first controller and the frame layer of the operating system of the second controller can communicate for the transmission of commands and data, so that there are two independent but interrelated subsystems in the display device 200.

The dual hardware system architecture of the present application is further described below with reference to fig. 5. It should be noted that fig. 5 is only an exemplary illustration of the dual hardware system architecture of the present application, and does not represent a limitation of the present application. In actual practice, both hardware systems may contain more or less hardware or interfaces as desired.

Fig. 5 is a block diagram illustrating a hardware architecture of the display apparatus 200 shown in fig. 3. As shown in fig. 5, the hardware system of the display apparatus 200 includes a first controller 210 and a second controller 310, and a module connected to the first controller 210 or the second controller 310 through various interfaces.

Among them, the first controller 210 may be disposed on the main board 31 shown in fig. 3. Optionally, the first controller 210: the traditional television function is mainly realized (for example, a set top box can be externally connected). The second controller 310 may be disposed on the second display driving board 34 shown in fig. 3. Optionally: the second controller 310 may be used to receive instructions sent by the first controller 210 and control the second display 380 to display a corresponding image.

The modules connected to the first controller 210 may include a tuning demodulator 220, a communicator 230, an external device interface 250, a memory 290, a user input interface 260-3, a video processor 260-1, an audio processor 260-2, a first display 280 (i.e., the first display 201 in fig. 1), an audio output interface 270, and a power supply module 240.

In other embodiments, more or fewer modules may be connected to the first controller 210.

In other embodiments, the first controller includes any of the modules described above.

The tuning demodulator 220 is configured to perform modulation and demodulation processing such as amplification, mixing, resonance and the like on a broadcast television signal received in a wired or wireless manner, so as to demodulate an audio/video signal carried in a frequency of a television channel selected by a user and additional information (e.g., an EPG data signal) from a plurality of wireless or wired broadcast television signals. Depending on the broadcast system of the television signal, the signal path of the tuner 220 may be various, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting, internet broadcasting, or the like; according to different modulation types, the signal can be adjusted in a digital modulation mode or an analog modulation mode; and depending on the type of television signal being received, tuner demodulator 220 may demodulate analog and/or digital signals.

The tuner demodulator 220 is also operative to respond to the user-selected television channel frequency and the television signal carried thereby, in accordance with the user selection and as controlled by the first controller 210.

In other exemplary embodiments, the tuning demodulator 220 may be in an external device, such as an external set-top box. In this way, the set-top box outputs television audio/video signals after modulation and demodulation, and the television audio/video signals are input into the display device 200 through the external device interface 250.

The communicator 230 is a component for communicating with an external device or an external server according to various communication protocol types. For example: the communicator 230 may include a WIFI module 231, a bluetooth module 232, a wired ethernet module 233, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module (not shown).

The display apparatus 200 may establish a connection of a control signal and a data signal with an external control apparatus or a content providing apparatus through the communicator 230. For example, the communicator may receive a control signal of the remote controller 100 according to the control of the first controller 210.

The external device interface 250 is a component that provides data transmission between the first controller 210 and other external devices. The external device interface 250 may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner, and may receive data such as a video signal (e.g., moving image), an audio signal (e.g., music), additional information (e.g., EPG), etc. of the external apparatus.

The external device interface 250 may include: a High Definition Multimedia Interface (HDMI) terminal is also referred to as HDMI 251, a Composite Video Blanking Sync (CVBS) terminal is also referred to as AV 252, an analog or digital component terminal is also referred to as component 253, a Universal Serial Bus (USB) terminal is also referred to as USB 254, a Red Green Blue (RGB) terminal (not shown), and the like. The number and type of external device interfaces are not limited by this application.

The first controller 210 controls the operation of the display apparatus 200 and responds to the operation of the user by running various software control programs (e.g., an operating system and/or various application programs) stored on the memory 290.

As shown in FIG. 5, the first controller 210 includes a read only memory ROM 213, a random access memory RAM 214, a graphics processor 216, a CPU processor 212, a communication interface 218 (a first interface 218-1, a second interface 218-2, an Nth interface 218-N), and a communication bus. The RAM 214, the ROM 213, the graphic processor 216, the CPU processor 212, and the communication interface 218 are connected via a communication bus.

A ROM 213 for storing instructions for various system boots. If the display device 200 is powered on upon receipt of the power-on signal, the CPU processor 212 executes a system boot instruction in the ROM and copies the operating system stored in the memory 290 to the RAM 214 to start running the boot operating system. After the start of the operating system is completed, the CPU processor 212 copies the various application programs in the memory 290 to the RAM 214, and then starts running and starting the various application programs.

A graphics processor 216 for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the operator, and displaying the rendered result on the first display 280.

A CPU processor 212 for executing operating system and application program instructions stored in memory 290. And executing various application programs, data and contents according to various interactive instructions received from the outside so as to finally display and play various audio and video contents.

In some exemplary embodiments, the CPU processor 212 may include a plurality of processors. The plurality of processors may include a main processor and a plurality of or a sub-processor. A main processor for performing some operations of the display apparatus 200 in a pre-power-up mode and/or operations of displaying a screen in a normal mode. A plurality of or one sub-processor for performing an operation in a standby mode or the like.

The communication interface 218 may include a first interface 218-1 through an nth interface 218-n. These interfaces may be network interfaces that are connected to external devices via a network.

The first controller 210 may control operations of the display device 200 in relation to the first display 280. For example: in response to receiving a user command for selecting a UI object to be displayed on the first display 280, the first controller 210 may perform an operation related to the object selected by the user command.

The first controller 210 may control operations of the display device 200 in relation to the second display 380. For example: in response to receiving a user command for selecting a UI object to be displayed on the second display 380, the first controller 210 may perform an operation related to the object selected by the user command.

Wherein the object may be any one of selectable objects, such as a hyperlink or an icon. Operations related to the selected object, such as: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to an icon. The user command for selecting the UI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch pad, etc.) connected to the display apparatus 200 or a voice command corresponding to a voice spoken by the user.

The memory 290 includes a memory for storing various software modules for driving and controlling the display apparatus 200. Such as: various software modules stored in memory 290, including: a base module, a detection module, a communication module, a display control module, a browser module, and various service modules, etc. (not shown in the figure).

The basic module is a bottom layer software module for signal communication between hardware in the display device 200 and sending processing and control signals to an upper layer module. The detection module is a management module used for collecting various information from various sensors or user input interfaces, and performing digital-to-analog conversion and analysis management. The voice recognition module comprises a voice analysis module and a voice instruction database module. The display control module is a module for controlling the first display 280 to display image content, and may be used to play information such as multimedia image content and UI interface. The communication module is a module for performing control and data communication with an external device. And the browser module is used for executing data communication between the browsing servers. The service module is a module for providing various services and various applications.

Meanwhile, the memory 290 is also used to store visual effect maps and the like for receiving external data and user data, images of respective items in various user interfaces, and a focus object.

The user input interface 260-3 for transmitting an input signal of a user to the first controller 210 or transmitting a signal output from the first controller 210 to the user. For example, the control device (e.g., a mobile terminal or a remote controller) may transmit an input signal, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., input by the user to the user input interface, and then the input signal is forwarded to the first controller 210 through the user input interface 260-3; alternatively, the control device may receive an output signal such as audio, video or data processed by the first controller 210 and output from the user input interface 260-3, and display or output the received output signal in audio or vibration form.

In some embodiments, the user may input a user command on a Graphical User Interface (GUI) displayed on the first display 280, and the user input interface 260-3 receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user input interface 260-3 receives the user input command by recognizing the sound or gesture through the sensor.

The video processor 260-1 is configured to receive a video signal, and perform video data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a video signal directly displayed or played on the first display 280.

Illustratively, the video processor 260-1 includes a demultiplexing module, a video decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, and the like (not shown in the figure).

The demultiplexing module is used for demultiplexing the input audio and video data stream, and if the input MPEG-2 is input, the demultiplexing module demultiplexes the input audio and video data stream into a video signal, an audio signal and the like.

And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like.

And the image synthesis module, such as an image synthesizer, is used for performing superposition mixing processing on the GUI signal input by the user or generated by the user and the video picture after the zooming processing by the graphics generator so as to generate an image signal for display.

The frame rate conversion module is configured to convert a frame rate of an input video, such as a frame rate of an input 24Hz, 25Hz, 30Hz, or 60Hz video into a frame rate of 60Hz, 120Hz, or 240Hz, where the input frame rate may be related to a source video stream, and the output frame rate may be related to a refresh rate of a display device. And a display formatting module for converting the signal output by the frame rate conversion module into a signal conforming to a display format of a display device, such as converting the format of the signal output by the frame rate conversion module to output RGB data signals.

A first display 280 for receiving the image signal from the video processor 260-1 and displaying the video content and image and the menu manipulation interface. The first display 280 includes a display component for presenting a picture and a driving component for driving an image display. The video content to be displayed may be from the video in the broadcast signal received by the tuner/demodulator 220, or may be from the video content input from the communicator or the external device interface. The first display 280 simultaneously displays a user manipulation interface UI generated in the display apparatus 200 and used to control the display apparatus 200.

And a driving component for driving the display according to the type of the first display 280. Alternatively, a projection device and a projection screen may be included, provided that the first display 280 is a projection display.

The audio processor 260-2 is configured to receive an audio signal, and perform decompression and decoding according to a standard codec protocol of the input signal, and perform audio data processing such as noise reduction, digital-to-analog conversion, and amplification processing to obtain an audio signal that can be played in the speaker 272.

An audio output interface 270 for receiving the audio signal output by the audio processor 260-2 under the control of the first controller 210, wherein the audio output interface may include a speaker 272 or an external sound output terminal 274 for outputting to a generating device of an external device, such as: external sound terminal or earphone output terminal.

In other exemplary embodiments, video processor 260-1 may comprise one or more chip components. The audio processor 260-2 may also include one or more chips.

And, in some other exemplary embodiments, the video processor 260-1 and the audio processor 260-2 may be separate chips or may be integrated in one or more chips together with the first controller 210.

And a power supply module 240 for providing power supply support for the display device 200 by the power input from the external power source under the control of the first controller 210. The power supply module 240 may include a built-in power supply circuit installed inside the display apparatus 200, or may be a power supply installed outside the display apparatus 200, such as a power supply interface for providing an external power supply in the display apparatus 200.

Similar to the first controller 210, as shown in fig. 5, the modules connected to the second controller 310 may include a communicator 330, a detector 340, a memory 390, a second display 380 (i.e., the second display 202 in fig. 1), a video processor 360, and an external device interface 350. A user input interface, an audio processor, an audio output interface (not shown) may also be included in some embodiments. In some embodiments, there may also be a power supply module (not shown) that independently powers the second controller 310.

In some embodiments, the second controller 310 may include any one or more of the modules described above.

The communicator 330 is a component for communicating with an external device or an external server according to various communication protocol types. For example: the communicator 330 may include a WIFI module 331, a bluetooth communication protocol module 332, a wired ethernet communication protocol module 333, and other network communication protocol modules such as an infrared communication protocol module or a near field communication protocol module (not shown).

The communicator 330 and the communicator 230 of the first controller 210 also interact with each other. For example, the WiFi module 231 within the hardware system of the first controller 210 is used to connect to an external network, generate network communication with an external server, and the like. The WiFi module 331 in the hardware system of the second controller 310 is used to connect to the WiFi module 231 of the first controller 210 without making a direct connection with an external network or the like, and the second controller 310 is connected to the external network through the first controller 210. Therefore, for the user, a display device as in the above embodiment displays a WiFi account to the outside.

The detector 340 is a component of the second controller 310 for collecting signals of an external environment or interaction with the outside. The detector 340 may include a light receiver 342, a sensor for collecting the intensity of ambient light, a sensor for collecting ambient light to adapt to changes in display parameters, etc.; the system may further include an image collector 341, such as a camera, a video camera, etc., which may be used to collect external environment scenes, collect attributes of the user or interact gestures with the user, adaptively change display parameters, and also recognize user gestures, so as to implement the function of interaction with the user.

The external device interface 350 provides a component for data transmission between the second controller 310 and the first controller 210 or other external devices. The external device interface may be connected with an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner.

A video processor 360 for processing the associated video signal.

The second controller 310 controls the operation of the display device 200 and responds to the operation of the user by running various software control programs stored on the memory 390 (e.g., using installed third party applications, etc.), and interacting with the first controller 210.

As shown in fig. 5, the second controller 310 includes a read only memory ROM 313, a random access memory RAM 314, a graphic processor 316, a CPU processor 312, a communication interface 318, and a communication bus. The ROM 313 and the RAM 314, the graphic processor 316, the CPU processor 312, and the communication interface 318 are connected by a communication bus.

A ROM 313 for storing instructions for various system boots. CPU processor 312 executes system boot instructions in ROM and copies the operating system stored in memory 390 to RAM 314 to begin running the boot operating system. After the start of the operating system is completed, the CPU processor 312 copies various application programs in the memory 390 to the RAM 314, and then starts running and starting various application programs.

A CPU processor 312 for executing the operating system and application program instructions stored in the memory 390, communicating with the first controller 210, transmitting and interacting signals, data, instructions, etc., and executing various application programs, data and contents according to various interactive instructions receiving external input, so as to finally display and play various audio-video contents.

The communication interface 318 is a plurality and may include a first interface 318-1, a second interface 318-2 through an nth interface 318-n. These interfaces may be network interfaces connected to external devices via a network, or may be network interfaces connected to the first controller 210 via a network.

The second controller 310 may control operations of the display device 200 in relation to the second display 380. For example: in response to receiving a user command for selecting a UI object to be displayed on the second display 380, the second controller 310 may perform an operation related to the object selected by the user command.

The second controller 310 may control operations of the display device 200 in relation to the first display 280. For example: in response to receiving a user command for selecting a UI object to be displayed on the first display 280, the first controller 210 may perform an operation related to the object selected by the user command.

A graphics processor 316 for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The display device comprises an arithmetic unit which carries out operation by receiving various interactive instructions input by a user and displays various objects according to display attributes. And a renderer for generating various objects based on the operator, and displaying the rendered result on the second display 380.

The graphics processor 316 of the second controller 310 and the graphics processor 216 of the first controller 210 are both capable of generating various graphics objects. In distinction, if the application 1 is installed in the second controller 310 and the application 2 is installed in the first controller 210, the graphic object is generated by the graphic processor 316 of the second controller 310 when the user performs an instruction input by the user in the application 1 at the interface of the application 1. When a user is at the interface of the application 2 and an instruction input by the user is made within the application 2, a graphic object is generated by the graphic processor 216 of the first controller 210.

Fig. 6 schematically shows a functional configuration of a display device of the present application.

As shown in fig. 6, the memory 390 of the second controller 310 and the memory 290 of the first controller 210 are used to store an operating system, an application program, contents, user data, and the like, respectively, and perform system operations for driving the first display 280 and the second display 380 and various operations in response to a user under the control of the second controller 310 and the first controller 210. Memory 390 and memory 290 may include volatile and/or nonvolatile memory.

The memory 290 is specifically used for storing an operating program for driving the first controller 210 in the display device 200, and storing various applications built in the display device 200, various applications downloaded by a user from an external device, various graphical user interfaces related to the applications, various objects related to the graphical user interfaces, user data information, and internal data of various supported applications. The memory 290 is used to store system software such as an Operating System (OS) kernel, middleware, and applications, and to store input video data and audio data, and other user data.

The memory 290 is specifically used for storing drivers and related data such as the video processor 260-1 and the audio processor 260-2, the first display 280, the communicator 230, the tuning demodulator 220, the input/output interface, and the like.

In some embodiments, memory 290 may store software and/or programs, software programs for representing an Operating System (OS) including, for example: a kernel, middleware, an Application Programming Interface (API), and/or an application program. For example, the kernel may control or manage system resources, or functions implemented by other programs (e.g., the middleware, APIs, or applications), and the kernel may provide interfaces to allow the middleware and APIs, or applications, to access the controller to implement controlling or managing system resources.

The memory 290, for example, includes a broadcast receiving module 2901, a channel control module 2902, a volume control module 2903, an image control module 2904, a display control module 2905, a first audio control module 2906, an external instruction recognition module 2907, a communication control module 2908, a light receiving module, a power control module 2910, an operating system 2911, and other application systems 2912, a browser module 2913, and so forth. The first controller 210 performs operations such as: the system comprises a broadcast television signal receiving and demodulating function, a television channel selection control function, a volume selection control function, an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

The memory 390 includes a memory storing various software modules for driving and controlling the display apparatus 200. Such as: various software modules stored in memory 390, including: a base module, a detection module, a communication module, a display control module, a browser module, and various service modules, etc. (not shown in the figure). Since the functions of the memory 390 and the memory 290 are similar, reference may be made to the memory 290 for relevant points, and details will not be described herein.

Illustratively, the memory 390 includes an image control module 3904, a second audio control module 3906, an external instruction recognition module 3907, a communication control module 3908, a light receiving module 3909, an operating system 3911, and other application systems 3912, a browser module 3913, and the like. The first controller 210 performs operations such as: the system comprises an image control function, a display control function, an audio control function, an external instruction identification function, a communication control function, an optical signal receiving function, an electric power control function, a software control platform supporting various functions, a browser function and other various functions.

Differently, the external instruction recognition module 2907 of the first controller 210 and the external instruction recognition module 3907 of the second controller 310 may recognize different instructions.

For example, when an image receiving device such as a camera is connected to the second controller 310, the external instruction recognition module 3907 of the second controller 310 may include an image recognition module 3907-1, a graphic database is stored in the image recognition module 3907-1, and when the camera receives an external graphic instruction, the camera corresponds to the instruction in the graphic database to perform instruction control on the display device. Since the voice receiving device and the remote controller are connected to the first controller 210, the external command recognition module 2907 of the first controller 210 may include a voice recognition module 2907-2, a voice database is stored in the voice recognition module 2907-2, and when the voice receiving device receives an external voice command or the like, the voice receiving device corresponds to a command in the voice database to perform command control on the display device. Similarly, the control device 100 such as a remote controller is connected to the first controller 210, and the button command recognition module 2907-3 performs command interaction with the control device 100.

Fig. 7 exemplarily shows a configuration block diagram of a software system in the display device 200.

With respect to the first controller 210, as shown in FIG. 7, the operating system 2911, which includes executing operating software for handling various basic system services and for performing hardware related tasks, acts as an intermediary between applications and hardware components for performing data processing.

In some embodiments, portions of the operating system kernel may contain a series of software to manage the display device hardware resources and provide services for other programs or software code.

In other embodiments, portions of the operating system kernel may include one or more device drivers, which may be a set of software code in the operating system that assists in operating or controlling the devices or hardware associated with the display device. The drivers may contain code that operates the video, audio, and/or other multimedia components. Examples include a display, a camera, Flash, WiFi, and audio drivers.

The accessibility module 2911-1 is configured to modify or access the application program to achieve accessibility and operability of the application program for displaying content.

A communication module 2911-2 for connection to other peripherals via associated communication interfaces and a communication network.

The user interface module 2911-3 is configured to provide an object for displaying a user interface, so that each application program can access the object, and user operability can be achieved.

Control applications 2911-4 for controlling process management, including runtime applications and the like.

The event transmission system 2914 may be implemented within the operating system 2911 or within the application programs 1912. In some embodiments, an aspect is implemented within the operating system 2911, while implemented in the application programs 1912, for listening for various user input events, and the handlers for implementing one or more predefined sets of operations in response to the recognition of various events or sub-events will be referred to in terms of various events.

The event monitoring module 2914-1 is configured to monitor an event or a sub-event input by the user input interface.

The event identification module 2914-2 is used to input various event definitions for various user input interfaces, identify various events or sub-events, and transmit them to the process for executing one or more sets of their corresponding handlers.

The event or sub-event refers to an input detected by one or more sensors in the display device 200 and an input of an external control device (e.g., the control apparatus 100). Such as: the method comprises the following steps of inputting various sub-events through voice, inputting a gesture sub-event through gesture recognition, inputting a remote control key command of a control device and the like. Illustratively, the one or more sub-events in the remote control include a variety of forms including, but not limited to, one or a combination of key presses up/down/left/right/, ok keys, key presses, and the like. And non-physical key operations such as move, hold, release, etc.

The interface layout management module 2913, directly or indirectly receiving the input events or sub-events from the event transmission system 2914, monitors the input events or sub-events, and updates the layout of the user interface, including but not limited to the position of each control or sub-control in the interface, and the size, position, and level of the container, which are related to the layout of the interface.

Since the operating system of the second controller 310 has similar functions to the operating system 2911 of the first controller 210, reference may be made to the operating system 2911 for relevant points, and details are not repeated here.

As shown in fig. 8, the application layer of the display device includes various applications that can be executed at the display device 200.

The applications 2912 of the first controller 210 may include, but are not limited to, one or more applications such as: a video-on-demand application, an application center, a game application, and the like. The application layer of the second controller 310 may include, but is not limited to, one or more applications such as: live television applications, media center applications, and the like. It should be noted that what applications are respectively contained in the second controller 310 and the first controller 210 is determined according to the operating system and other designs, and the present invention does not need to make specific limitations and divisions on the applications contained in the second controller 310 and the first controller 210.

The live television application program can provide live television through different signal sources. For example, a live television application may provide television signals using input from cable television, radio broadcasts, satellite services, or other types of live television services. And, the live television application may display video of the live television signal on the display device 200.

A video-on-demand application may provide video from different storage sources. Unlike live television applications, video on demand provides a video display from some storage source. For example, the video on demand may come from a server side of the cloud storage, from a local hard disk storage containing stored video programs.

The media center application program can provide various applications for playing multimedia contents. For example, a media center, which may be other than live television or video on demand, may provide services that a user may access to various images or audio through a media center application.

The application program center can provide and store various application programs. The application may be a game, an application, or some other application associated with a computer system or other device that may be run on a display device. The application center may obtain these applications from different sources, store them in local storage, and then be operable on the display device 200.

Since the second controller 310 and the first controller 210 may have independent operating systems installed therein, there are two independent but interrelated subsystems in the display device 200. For example, Android (Android) and various APPs may be independently installed on the second controller 310 and the first controller 210, and may all implement a certain function, and the second controller 310 and the first controller 210 cooperate to implement a certain function.

Fig. 9 illustrates a schematic diagram of a user interface in the display device 200. As shown in fig. 9, the user interface includes a first view display area 2011 and a second view display area 2021. The first view display area 2011 and the second view display area 2021 have substantially the same function, and only the first view display area 2011 is described in an important manner below. Illustratively, among other things, the first view display 2011 includes layouts for one or more different items. And a selector indicating that the item is selected is also included in the user interface, and a position of the selector is movable by a user input to change a selection of a different item.

A "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables the conversion of the internal form of information to a form acceptable to the user. A common presentation form of a user interface is a Graphical User Interface (GUI), which refers to a user interface related to computer operations and displayed in a graphical manner. It may be an interface element such as an icon, a window, a control, etc. displayed in the display screen of the electronic device, where the control may include a visual interface element such as an icon, a button, a menu, a tab, a text box, a dialog box, a status bar, a navigation bar, a Widget, etc.

In some embodiments, the first view display area 2011 is a scalable view display. "scalable" may mean that the first view display area 2011 is scalable in size or proportion on the screen, and the items in the first view display area 2011 are scalable in size or proportion on the screen.

The "item" is displayed in a view display area of the user interface in the display device 200 to represent a visual object of corresponding content such as an icon, a thumbnail, a video clip, and the like. For example: the items may represent movies, image content or video clips of a television show, audio content of music, applications, or other user access content history information.

Further, the item may represent an interface or a collection of interfaces on which the display device 200 is connected to an external device, or may represent a name of an external device connected to the display device, or the like. Such as: a signal source input Interface set, or a High Definition Multimedia Interface (HDMI), a USB Interface, a PC terminal Interface, and the like.

It should be noted that: the view display area may present Video chat project content or application layer project content (e.g., web Video, Video On Demand (VOD) presentations, application screens, etc.).

A "selector" is used to indicate where any item has been selected, such as a cursor or a focus object. Positioning the selection information input according to an icon or menu position touched by the user in the display 200 may cause movement of a focus object displayed in the display device 200 to select a control item, one or more of which may be selected or controlled.

The focus object refers to an object that moves between items according to user input. Illustratively, the focus object position is implemented or identified by drawing a thick line through the item edge. In other embodiments, the focus form is not limited to an example, and may be a form such as a cursor that is recognizable by the user, either tangible or intangible, such as in the form of a 3D deformation of the item, or may change the identification of the border lines, size, color, transparency, and outline and/or font of the text or image of the item in focus.

The event transmission system 2914, which may monitor user input for each predefined event or sub-event that is heard, provides control identifying the event or sub-event directly or indirectly to the interface layout management module 2913.

The interface layout management module 2913 is configured to monitor the state of the user interface (including the position and/or size of the view partition, the item, the focus or the cursor object, the change process, and the like), and according to the event or the sub-event, may perform a modification on the layout of the size and position, the hierarchy, and the like of the view display area, and/or adjust or modify the layout of the size or/and position, the number, the type, the content, and the like of the layout of various items in the view display area. In some embodiments, the layout is modified and adjusted, including displaying or not displaying the view partitions or the content of the items in the view partitions on the screen.

And a user input interface for transmitting an input signal of a user to the controller or transmitting a signal output from the controller to the user. For example, the control device (e.g., a mobile terminal or a remote controller) may send an input signal, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., input by a user to the user input interface, and then the input signal is forwarded to the controller by the user input interface; alternatively, the control device may receive an output signal such as audio, video, or data output from the user input interface via the controller, and display the received output signal or output the received output signal in audio or vibration form.

In some embodiments, the user may input a user command on a Graphical User Interface (GUI) displayed on the display 200, and the user input interface receives the user input command through the Graphical User Interface (GUI). Alternatively, the user may input the user command by inputting a specific sound or gesture, and the user input interface receives the user input command by recognizing the sound or gesture through the sensor.

Fig. 10 is a block diagram illustrating a structure in which a display device presents dual systems and dual screens according to an exemplary embodiment. Referring to fig. 10, the display device provided in the embodiment of the present invention includes two controllers, which are a second controller and a first controller, respectively, where each controller runs an independent Android system, that is, a system N (a second hardware system) runs on the second controller, a system a (a first hardware system) runs on the first controller, the system N is a master system, and the system a is a slave system.

To enable the capabilities of both systems to be exposed to the user, the display device is configured with dual displays. The dual display includes a first display (small screen) 280 and a second display (large screen) 380, the second display 380 (i.e. the first display 201 in fig. 1) is connected to the second controller 310 (system N) for displaying the display content of each application configured in the system N, providing the main tv service; the first display 280 (i.e., the second display 202 in fig. 1) is connected to the camera and the first controller 210 (system a) for displaying the social ability and the auxiliary information prompt to the user. The system A is provided with an application related to the camera, and the system N is provided with other applications for presenting social ability. The first display may also be connected to the system N, and the system N is configured to control the backlight of the first display to be turned on and off when the first display is connected to the system N.

The system N and the system A are connected through an HDMI interface, and the switching of the system N and the system A interface can be realized. The two systems can be connected through a data path to realize data transmission between the two systems. Because the system N does not provide social ability, the functions of video chat, magic mirror and the like are configured on the system A, and when a user conducts video chat, the content of the system A is displayed through the second display (large screen) instead of the first display (small screen).

When the user quits the video chat, the display device provided by the embodiment can coordinate and control the two systems, so that the corresponding application content can be accurately displayed on the large screen and the small screen. For example, if the first display previously displayed the home page of system a, the second display previously displayed a video playback, such as a video played by a media center. At this point, the user triggers the display of the first application to be presented on the second display, for example, launching and displaying a "mirror" application in the first controller on the second display. In this scenario, after the user triggers the return key on the remote control, the second display ends displaying the content of the "look to the mirror" application, and the first display displays the application before starting the "look to the mirror" application, i.e., the home page of system a; the video playback that was displayed prior to the "mirror" application, i.e., the video played by the media center, is displayed in the second display.

Therefore, in order to implement the coordinated display of the large and small double screens of the double-system display device after the application returns, the embodiment of the invention provides the display device, when a certain application which is being displayed executes a return instruction to exit, the two systems can be controlled to respectively acquire the application contents which are already displayed before the application is started, and the previously displayed contents are displayed in the corresponding display again, so that the coordinated display of the large and small double screens of the double systems after the application returns is implemented, and the corresponding application contents can be accurately displayed on the display.

Fig. 11 is a block diagram schematically showing the structure of a display device according to an exemplary embodiment. Referring to fig. 11, an embodiment of the present invention provides a display device 200, including: a first controller 210, a second controller 310, a first display 280, and a second display 380. The first display is in communication connection with the first controller, the first display is configured to display content of a first application, and the first application refers to an application configured in the first controller; the second display is in communication connection with the second controller, and the second display is configured to display content of the first application or display content of a second application, and the second application refers to an application configured in the second controller.

The first controller is configured with a first development encapsulation module (Framework A) and an HDMI Switch module, and the second controller is configured with a second development encapsulation module (Framework N). The first controller is configured to control content display of the first display, the first development packaging module is used for storing an application starting process list, and first applications started each time in the first controller are stored in the application starting process list according to time sequence; the HDMI Switch module implements a Switch data interface, for example, connecting a display content output interface of an application in a first controller to a first display, or connecting a display content output interface to a second display in a second controller. The second controller is configured to control content display of the second display, and the second development packaging module is used for storing the second application started each time in the second controller according to time sequence.

The first controller and the second controller are communicated with each other, the first display is enabled to accurately display the display content of the first application through coordinated communication, and the second display is enabled to accurately display the display content of the second application or the display content of the first application.

FIG. 12 is a flow chart illustrating a method of controlling return of a dual system size dual screen application in accordance with an exemplary embodiment; a data flow diagram illustrating a control method for dual system size dual screen application return in accordance with an exemplary embodiment is shown in fig. 13. To this end, to implement the coordinated display of the dual-system application dual displays when an application returns, an embodiment of the present invention provides a display device, which includes a first display, a second display, a first controller, and a second controller. The first controller is configured to execute the control method for returning the dual-system-size dual-screen application shown in fig. 12 and 13, and specifically includes the following steps:

s11, receiving an exit event broadcast generated by the first application in response to a return instruction for ending the display of the display content of the first application.

When the display content of the application (first application) in the first controller that has been started has been presented in a certain display, for example, the display content of the first application has been displayed on the second display or has been displayed on the first display. If the user wants to quit the first application, the user can trigger the remote controller to generate a return instruction and send the return instruction to the first application. After receiving the return instruction, the first application does not immediately call the logic of the first controller for processing the return instruction, but generates an exit event broadcast and sends the exit event broadcast to the first controller.

When an application in the first controller (system a) that is being displayed exits, an ACTION (exit event broadcast) broadcast is sent as: com.sense.tv.action.sil _ BACK _ EVENT is broadcast to the first controller. This ACTION broadcast represents the application to exit and return to the last application. The exit event broadcast is used for identifying that the first application needs to perform an exit operation so as to inform the first controller of preparation for content to be displayed on the first display and the second display respectively after the application returns.

Since the display device provided in this embodiment needs to display the display content of the previous application on the corresponding display after a certain application is exited, the first controller is notified to prepare to search for and acquire the display content of the previous application, and meanwhile, the first controller communicates with the second controller to notify the second controller to prepare the same.

And S12, responding to the exit event broadcast, acquiring information of the specified application, and sending the information of the specified application to the second controller, wherein the specified application refers to the last application displayed before the first application is displayed in the first controller.

After receiving the exit event broadcast sent by the first application, the first controller needs to acquire the information of the last application. For this purpose, the first controller calls the first development encapsulation module, searches the last application before the first application is started, namely the specified application, in the application starting process list stored in the first development encapsulation module, and acquires the information of the specified application.

The designated application is an application in the first controller, the first controller sends the acquired information of the designated application to the second controller, so that the second controller judges whether the designated application is an application needing to be displayed on the first display or an application needing to be displayed on the second display, and display content of the designated application is displayed on an accurate display.

Another flow chart of a control method for return of a dual system size dual screen application in accordance with an exemplary embodiment is illustrated in fig. 14. To this end, to implement the coordinated presentation of the dual-system application on the display upon application return, the second controller is configured to execute a control method of dual-system-size dual-screen application return shown in fig. 14, the method including the steps of:

and S21, receiving information of the designated application sent by the first controller, wherein the designated application is the last application displayed before the first application is displayed in the first controller.

And S22, inquiring whether the specified application exists in a second display list based on the information of the specified application, wherein the second display list comprises the second application and the first application needing to be displayed on the second display.

And after receiving the information of the designated application sent by the first controller, the second controller calls a second development packaging module, a second display list is also stored in the second development packaging module, and all application names which need to be displayed on the second display in the first controller and the second controller, such as package names of the second application and the first application which needs to be displayed on the second display, are stored in the second display list.

The information for specifying the application includes a specified application package name for uniquely identifying a launch type of the specified application, i.e., whether the specified application is to be displayed on the first display or the second display, and the second display list includes each application package name to be displayed on the second display.

In the display device provided in this embodiment, the second controller queries whether a specified application exists in the second display list according to the name of the specified application package, and if so, indicates that the specified application exists in the second display list, that is, the specified application needs to be displayed on the second display; if the application does not exist, the second display displays the specified application in the list, namely the specified application needs to be displayed on the first display.

A flow diagram of a method of querying a second display list for the presence of a specified application in accordance with an exemplary embodiment is illustrated in fig. 15. Specifically, referring to fig. 15, when the display apparatus inquires whether a specified application exists in the second display list, the second controller is further configured to:

s221, matching the specified application package name with each application package name in the second display list.

S222, if one application package name is consistent with the specified application package name in the second display list, determining that the specified application exists in the second display list.

And S223, if any application package name does not exist in the second display list and is consistent with the specified application package name, determining that the specified application does not exist in the second display list.

The second display list comprises a plurality of application package names which can be displayed on the second display, the specified application package names are matched with the plurality of application package names which can be displayed on the second display, and if a certain application package name is consistent with the specified application package name, the specified application exists in the second display list, namely the specified application needs to be displayed on the second display; if any application package name does not accord with the specified application package name, the second display displays the specified application in the list, namely the specified application needs to be displayed on the first display.

And S23, generating an HDMI switching identifier corresponding to the query result, wherein the HDMI switching identifier is used for representing whether the display content of the specified application needs to be displayed on the first display or the second display.

And after inquiring whether the specified application is the application needing to be displayed on the second display or not, the second controller generates a corresponding HDMI switching identifier according to different inquiry results so as to represent whether the display content of the specified application needs to be displayed on the first display or the second display.

In one possible specific implementation manner, in the display device provided in this embodiment, when the HDMI switch identifier is generated, the second controller is further configured to:

step 2311, based on the information of the specified application, if the query in the second display list results in the absence of the specified application.

Step 2312, according to the query result without the specified application, an HDMI switching identifier is generated, and the HDMI switching identifier is used for representing that the display content of the specified application needs to be displayed on the first display.

When the second controller inquires in the second display list according to the information of the specified application, if the inquiry result shows that the specified application does not exist, the specified application needs to be displayed on the first display. Therefore, the second controller generates a corresponding HDMI switching identifier according to the query result without the specified application so as to control the HDMI Switch module to connect the HDMI output interface to the first display, and the current HDMI switching identifier can realize the display content of the specified application to be displayed on the first display.

In another possible specific implementation manner, in the display device provided in this embodiment, when generating the HDMI switch identifier, the second controller is further configured to:

step 2321, based on the information of the designated application, if the query result in the display list of the second display is that the designated application exists;

step 2322, according to the query result with the specified application, an HDMI switch identifier is generated, and the HDMI switch identifier is used for representing that the display content of the specified application needs to be displayed on the second display.

When the second controller inquires in the display list of the second display according to the information of the specified application, if the inquiry result indicates that the specified application exists, the specified application needs to be displayed on the second display. Therefore, the second controller generates a corresponding HDMI switching identifier according to the query result of the specific application, so as to control the HDMI Switch module to connect the HDMI output interface to the second display, and the current HDMI switching identifier can realize the display content of the specific application to be displayed on the second display.

And S24, sending the HDMI switching identifier to the first controller, so that the first controller displays the display content of the specified application on the display corresponding to the HDMI switching identifier.

The second controller sends the HDMI switching identifier generated according to different query results to the first controller, so that the first controller can control the HDMI Switch module to Switch the output interface according to the HDMI switching identifier, and connect the switched output interface to the corresponding display, thereby realizing the display of the display content of the designated application.

And S13, receiving an HDMI switching identifier generated by the second controller after inquiring whether the designated application exists in a second display list according to the information of the designated application, wherein the second display list comprises the second application and the first application which needs to be displayed on the second display, and the HDMI switching identifier is used for representing whether the display content of the designated application needs to be displayed on the first display or the second display.

The first controller receives the HDMI switching identifier sent by the second controller, and the HDMI switching identifier can be used for identifying which display the output interface of the HDMI Switch module needs to be switched to, so that whether the display content of the specified application is displayed on the first display or the second display is realized, and the display content of the specified application can be accurately displayed on the corresponding display.

And S14, ending the display of the display content of the first application, acquiring the display content of the specified application, and displaying the display content of the specified application on the display corresponding to the HDMI switching identifier.

And immediately responding to the return instruction to close the Activity interface after the first controller receives the HDMI switching identifier, namely ending the display of the display content of the first application. At this time, the first controller automatically acquires the display content of the designated application and displays the display content on the display corresponding to the HDMI switch identifier.

A flow diagram of a method of displaying display content of a specified application in accordance with an exemplary embodiment is illustrated in fig. 16. In one embodiment, referring to fig. 16, when the display device controls the corresponding display to display the display content of the specific application, the first controller is further configured to:

s1411, when the designated application is an application displayed on the first display and the HDMI switching identifier represents that the display content of the designated application needs to be displayed on the first display, acquiring a current HDMI output identifier corresponding to the display content of the first application when the display content of the first application is displayed, wherein the HDMI output identifier is used for representing whether the display content of the first application is displayed on the first display or the second display.

In this embodiment, if the specified application is an application that needs to be displayed on the first display, it is indicated that the HDMI Switch identifier generated by the second controller needs to control the output interface of the HDMI Switch module to Switch to the first display. At this time, in order to accurately determine whether the HDMI output interface currently connected to the first application needs to perform switching, that is, whether the HDMI output interface is switched to the first display (if the display content of the first application is being displayed on the first display, the HDMI output interface does not need to perform switching), it is necessary to obtain the current HDMI output identifier when the first application displays the content on a certain display, so as to determine whether the HDMI output interface of the first application is currently connected to the first display or the second display.

And S1412, judging whether the HDMI switching identifier is consistent with the current HDMI output identifier.

S1413, if the HDMI switching identifier is inconsistent with the current HDMI output identifier, displaying the display content of the designated application on the first display corresponding to the HDMI switching identifier.

When determining whether the HDMI output interface currently connected to the first application needs to be switched to the first display, the determination method adopted in this embodiment is to compare the HDMI switch identifier (corresponding to the designated application) with the current HDMI output identifier (corresponding to the first application).

Since the HDMI switch identifier may indicate that the output interface of the designated application should be connected to the first display, if the HDMI switch identifier is not consistent with the current HDMI output identifier, that is, the display being displayed by the first application is not consistent with the display to be displayed by the previous application, it indicates that the display content of the first application is being displayed on the second display.

At this time, the first controller needs to switch the HDMI output interface from the second display to the first display according to the HDMI switching identifier, and display the display content of the designated application on the first display, so that the display content in the first controller is output to the first display and displayed after the first application returns to the execution.

After a first application displayed in a second display is exited, the first display displays the display content of the designated application, and in this case, the second display also displays the display content of the application that was launched before the first application was displayed.

Fig. 17 is a flowchart illustrating a content display method of controlling the second display according to an exemplary embodiment. To this end, referring to fig. 17, in the display device provided in the embodiment of the present invention, when the second display is required to display a certain content, the second controller is further configured to:

s25, finding a previous application displayed on the second display, wherein the previous application is the last application displayed on the second display before the first application is displayed.

S26, acquiring the display content of the previous application after the display of the display content of the first application is finished, and displaying the display content of the previous application on the second display.

The second controller receives the information of the designated application sent by the first controller, executes and judges the starting type of the designated application, calls the second development packaging module, and acquires the application displayed before the first application is displayed, namely the prior application, from a second application list which is stored in the second controller according to the time sequence and is started each time.

And the second controller stops displaying the display content of the first application, acquires the display content of the prior application and displays the display content on the second display, so that the display content in the second controller is output to the second display and displayed after the first application returns to the execution.

Since the backlight of the first display is in an off state when the first display is not used, the backlight of the first display needs to be turned on again after the first controller completes the switching of the HDMI output interface and displays the display content of the designated application. Specifically, in performing turning on the first display backlight, the first controller is further configured to: and sending a first display backlight starting instruction to the second controller, wherein the first display backlight starting instruction is used for the second controller to start the backlight of the first display in the first controller.

Since the backlight of the first display is controlled by the second controller, the first display is now in communicative connection with the second controller. Thus, the second controller is further configured to: receiving a first display backlight starting instruction sent by a first controller, wherein the first display backlight starting instruction is used for starting the backlight of a first display in the first controller; and in response to the instruction for starting the first display backlight, starting the backlight of the first display in the first controller.

The first controller needs to turn on the backlight of the first display again for the user's viewing convenience after outputting the display contents of the designated application to the first display. Therefore, a first display backlight starting instruction is generated by the first controller and sent to the second controller, and the second controller receives and responds to the first display backlight starting instruction to start the backlight of the first display, so that a user can view the display content of the specific application displayed in the first display.

In this embodiment, the first controller presents a "back-on backlight" effect in a process that the first controller outputs the display content of the designated application to the first display after the timing of sending the instruction to turn on the backlight of the first display, so as to avoid that the first display is preferentially turned on, and at this time, the display content of the designated application is not yet displayed in the first display, so as to avoid that the blank display is seen by the user.

As can be seen, the display device provided in the embodiment of the present invention is suitable for outputting the HDMI of the current system a to the second display, and returning to the application scene that the system a needs to display on the first display. In this scenario, when the control method for returning the dual-system large and small dual-screen applications is executed, after the first application responds to the return instruction, the first controller may obtain the display content of the specified application displayed before the first display and display the display content on the first display, and the second controller may obtain the display content of the previous application displayed before the second display displays the first application and display the display content on the second display, so that the coordinated display of the dual-system applications on the dual-display during the return of the applications is realized, and the large and small dual-screens can accurately display the corresponding application content.

For example, in a scenario where the HDMI of the current system a (first controller) is output to a large screen (second display), and it is necessary to return to an application that the system a needs to display on a small screen (first display):

currently, a large screen of a television displays video playing (such as a media center plays video), and a small screen displays time weather (a homepage of a system A). The user has started an application (first application) that needs to be displayed on the large screen in system a, such as: after looking into the mirror, press the remote control return key:

firstly, after receiving a return key, the mirror application of the system A does not call the processing return logic of the system A, but sends SILO _ BACK _ EVENT (exit EVENT) broadcast to the first controller, and after receiving the return key, the first controller inquires that the last application (appointed application) is the homepage of the system A according to an application starting process list stored in the first development and encapsulation module, and sends the name information of the application package to the second controller. And after receiving the request, the second controller searches whether the request is in a display list of the second display or not according to the application package name, obtains a query result that the homepage of the system A is not in the list, and generates an HDMI switching identifier for identifying that the HDMI Switch module in the first controller needs to be switched to the small screen.

Then, the second controller sends the generated HDMI switch identifier to the first controller through the data path, and at the same time, the second controller queries the last application (previous application) in the system N as the media center. After receiving the HDMI switching identifier, the first controller firstly ends the current Top activity of the system a, and then the system automatically pulls up the previous application (system a homepage), then judges whether the HDMI switching identifier is the same as the current HDMI output identifier, and if not, switches the HDMI output interface to the HDMI connected to the small screen according to the HDMI switching identifier, so as to display the system a homepage (designated application) on the small screen (first display), and meanwhile, the second controller also ends the Top activity (mirror) of the current system N, returns to the previous application (media center), and displays the media center (previous application) on the large screen (second display). And finally, the first controller informs the second controller to turn on the small-screen backlight.

FIG. 18 is a flow chart illustrating another method of displaying display content for a specified application in accordance with an illustrative embodiment; another data flow diagram illustrating a control method for dual system size dual screen application return in accordance with an exemplary embodiment is shown in fig. 19. Another embodiment of the present application provides a display device, which is different from the method shown in fig. 16, that is, in another specific embodiment, referring to fig. 18 and 19, when performing display of display content of a specified application, the first controller is further configured to:

s1421, when the designated application is an application that needs to be displayed on the second display and the HDMI switching identifier indicates that the display content of the designated application needs to be displayed on the second display, acquiring a current HDMI output identifier corresponding to the display of the first application, where the HDMI output identifier is used to indicate whether the display content of the first application is being displayed on the first display or the second display.

In this embodiment, if the specified application is an application that needs to be displayed on the second display, it is indicated that the HDMI Switch identifier generated by the second controller needs to control the output interface of the HDMI Switch module to Switch to the second display. At this time, in order to accurately determine whether the HDMI output interface currently connected to the first application needs to perform switching, that is, whether the HDMI output interface is switched to the second display (if the display content of the first application is being displayed on the second display, the HDMI output interface does not need to perform switching), it is necessary to obtain the current HDMI output identifier when the first application displays the content on a certain display, so as to determine whether the HDMI output interface of the first application is currently connected to the first display or the second display.

S1422, judging whether the HDMI switching identifier is consistent with the current HDMI output identifier.

S1423, if the HDMI switching identifier is consistent with the current HDMI output identifier, displaying the display content of the designated application on the second display corresponding to the HDMI switching identifier.

When determining whether the HDMI output interface currently connected to the first application needs to be switched to the second display, the determination method adopted in this embodiment is to compare the HDMI switch identifier (corresponding to the designated application) with the current HDMI output identifier (corresponding to the first application).

Since the HDMI switch identifier may indicate that the output interface of the designated application should be connected to the second display, if the HDMI switch identifier is identical to the current HDMI output identifier, that is, the display being displayed by the first application is identical to the display to be displayed by the previous application, it indicates that the display content of the first application is being displayed on the second display.

At this moment, the first controller needs to switch the identifier according to the HDMI without switching the HDMI output interface, the connection between the HDMI output interface and the second display is maintained, the display content of the designated application is displayed in the second display, and the display content in the first controller is continuously output to the second display and displayed after the execution of the first application returns.

After the first application displayed in the second display is quitted, the second display displays the display content of the designated application, and at the moment, the first display is still in the backlight-off state, and the content of any application does not need to be displayed.

Therefore, the display device provided by the embodiment of the invention is suitable for outputting the HDMI of the current system A to a large screen and returning to the application scene which needs to be displayed on the large screen by the system A. In this scenario, when the control method for returning the dual-system large and small dual-screen applications is executed, after the first application responds to the return instruction, the first controller may obtain the display content of the specified application displayed before the first display and continue to display the display content on the second display, and the first display may be kept in a historical state, such as a backlight-off state, so as to achieve coordinated display of the dual-system applications on the dual-display when the applications return, and ensure that the large and small dual-screens can accurately display the corresponding application content.

For example, when the HDMI of the current system a (first controller) is output to a large screen (second display), and it is necessary to return to a scene of an application that the system a needs to display on the large screen (second display):

at present, a large screen of a television displays 'looking into a mirror', and a user presses a return key of a remote controller after starting a 'family photo album'. Wherein the mirror and home album applications are both applications in the first controller that need to be displayed on the second display.

Firstly, after receiving a return key, the family photo album application in the system A does not call the system A processing return logic, but sends SILO _ BACK _ EVENT (exit EVENT) broadcast to the first controller, and the first controller inquires that the last application (the appointed application) is a mirror according to an application starting process list stored in the first development packaging module after receiving the SILO _ BACK _ EVENT, and sends the application package name information to the second controller. And the second controller searches whether the current HDMI Switch module is in the second display list or not according to the application package name after receiving the current HDMI Switch module, obtains a query result of the mirror application in the list, and generates an HDMI Switch identifier for identifying that the HDMI Switch module in the first controller needs to be switched to a large screen.

Then, the second controller sends the generated HDMI switching identifier to the first controller through the data path, after the first controller receives the HDMI switching identifier, the current Top Activity of the system A is firstly ended, then the system automatically pulls up the last application (home album), and then judges whether the HDMI switching identifier is the same as the current HDMI output identifier, if so, the operation of switching the HDMI output interface is not needed, so that the display content of the home album application is continuously displayed on the second display.

As can be seen from the foregoing technical solutions, in the display device provided in the embodiments of the present invention, the control method for returning a dual-system-size dual-screen application is executed, wherein the first controller is configured to receive an exit event broadcast generated when the first application responds to a return instruction, acquire information of a specific application, and send the information to the second controller; the second controller inquires whether the designated application exists in a display list of the second display according to the information of the designated application and then generates an HDMI switching identifier; the first controller ends the display of the display content of the first application and displays the display content of the specified application on the display corresponding to the HDMI switching identifier. As can be seen, in the display device provided in the embodiment of the present invention, after the first application responds to the return instruction, the first controller may obtain the display content of the designated application displayed before the first display and display the display content on the first display, and the second controller may obtain the display content of the previous application displayed before the second display displays the first application and display the display content on the second display, so as to implement coordinated display of the dual-system application on the dual-display when the application returns, and ensure that the large and small dual screens can accurately display the corresponding application content.

FIG. 12 is a flow chart illustrating a method of controlling return of a dual system size dual screen application in accordance with an exemplary embodiment. Referring to fig. 12, the present application provides a control method for returning a dual-system-size dual-screen application, which is applied to a first controller, and includes the following steps:

s11, receiving an exit event broadcast generated by the first application when responding to a return instruction, wherein the return instruction is used for ending the display of the display content of the first application;

s12, responding to the quit event broadcast, acquiring information of specified applications, and sending the information of the specified applications to a second controller, wherein the specified applications refer to the last application displayed before the first application is displayed in the first controller;

s13, receiving an HDMI switching identifier generated after the second controller inquires whether the designated application exists in a second display list according to the information of the designated application, wherein the second display list comprises a second application and a first application which needs to be displayed on a second display, and the HDMI switching identifier is used for representing whether the display content of the designated application needs to be displayed on the first display or the second display;

Further, the displaying the display content of the specified application on the display corresponding to the HDMI switch identifier includes: when the designated application is an application displayed on a first display, and the HDMI switching identifier represents that the display content of the designated application needs to be displayed on the first display, acquiring a current HDMI output identifier corresponding to the display content of the first application when the display content of the first application is displayed, wherein the HDMI output identifier is used for representing whether the display content of the first application is displayed on the first display or a second display; judging whether the HDMI switching identifier is consistent with the current HDMI output identifier; and if the HDMI switching identifier is not consistent with the current HDMI output identifier, displaying the display content of the specified application on a first display corresponding to the HDMI switching identifier.

Further, the displaying the display content of the specified application on the display corresponding to the HDMI switch identifier includes: when the designated application is an application needing to be displayed on a second display and the HDMI switching identifier represents that the display content of the designated application needs to be displayed on the second display, acquiring a current HDMI output identifier corresponding to the first application, wherein the HDMI output identifier is used for representing whether the display content of the first application is displayed on the first display or the second display; judging whether the HDMI switching identifier is consistent with the current HDMI output identifier; and if the HDMI switching identifier is consistent with the current HDMI output identifier, displaying the display content of the specified application on a second display corresponding to the HDMI switching identifier.

Further, the first display is in communication connection with the second controller; and, further comprising: and sending a first display backlight starting instruction to the second controller, wherein the first display backlight starting instruction is used for the second controller to start the backlight of the first display in the first controller.

Another flow chart of a method of controlling return of a dual system size dual screen application in accordance with an exemplary embodiment is illustrated in fig. 14. Referring to fig. 14, the present application provides a control method for returning a dual-system-size dual-screen application, which is applied to a second controller, and includes the following steps:

s21, receiving information of a designated application sent by a first controller, wherein the designated application is the last application displayed before the first application is displayed in the first controller;

s22, inquiring whether the specified application exists in a second display list based on the information of the specified application, wherein the second display list comprises the second application and the first application needing to be displayed on the second display;

s23, generating an HDMI switching identifier corresponding to the query result, wherein the HDMI switching identifier is used for representing whether the display content of the specified application needs to be displayed on the first display or the second display;

s24, the HDMI switching identifier is sent to a first controller, so that the first controller displays the display content of the specified application on a display corresponding to the HDMI switching identifier.

Further, still include: searching for a previous application displayed on the second display, wherein the previous application is the last application displayed on the second display before the first application is displayed; and after the display of the display content of the first application is finished, acquiring the display content of the prior application, and displaying the display content of the prior application on a second display.

Further, the querying whether the specified application exists in the second display list based on the information of the specified application includes: the information of the specified application comprises a specified application package name, and the display list of the second display comprises each application package name required to be displayed on the second display; matching the specified app package name with each app package name in the second display list; determining that a specified application exists in the second display list if an application package name exists in the second display list that is consistent with the specified application package name; determining that the designated application does not exist in the second display list if any application package name does not exist in the second display list and the designated application package name is consistent.

Further, the generating the HDMI switch identifier corresponding to the query result includes: based on the information of the specified application, if the query result in the second display list is that the specified application does not exist; and generating an HDMI switching identifier according to the query result without the specified application, wherein the HDMI switching identifier is used for representing that the display content of the specified application needs to be displayed on the first display.

Further, the generating the HDMI switch identifier corresponding to the query result includes: based on the information of the specified application, if the query result in the second display list is that the specified application exists; and generating an HDMI switching identifier according to the query result with the specified application, wherein the HDMI switching identifier is used for representing that the display content of the specified application needs to be displayed on a second display.

Further, still include: receiving a first display backlight starting instruction sent by the first controller, wherein the first display backlight starting instruction is used for starting the backlight of a first display in the first controller; and responding to the instruction for starting the first display backlight, and starting the backlight of the first display in the first controller.

In a specific implementation, the present invention 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 each embodiment of the control method for returning a dual-system-size dual-screen application provided by the present invention when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a Random Access Memory (RAM).

Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented using software plus any required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.

The same and similar parts among the various embodiments in this specification may be referred to each other. Particularly, for the embodiment of the control method for returning the dual-system-size dual-screen application, since the embodiment is basically similar to the embodiment of the display device, the description is simple, and the relevant points can be referred to the description in the embodiment of the display device.

The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention.

Claims

1. A display device, comprising:

a first display communicatively connected with a first controller, the first display configured to display content of a first application, the first application being an application configured in the first controller;

a second controller configured to receive information of a designated application transmitted by the first controller, the designated application being a last application displayed before the first application is displayed in the first controller;

responding to the quit event broadcast, acquiring information of a specified application, and sending the information of the specified application to a second controller;

2. The display device of claim 1, wherein the first controller is further configured to:

3. The display device of claim 1, wherein the second controller is further configured to:

4. The display device of claim 1, wherein the first controller is further configured to:

5. The display device of claim 1, wherein the second controller is further configured to:

determining that a specified application exists in the second display list if an application package name exists in the second display list and is consistent with the specified application package name;

determining that the designated application does not exist in the second display list if any application package name does not exist in the second display list consistent with the designated application package name.

6. The display device of claim 1, wherein the second controller is further configured to:

7. The display device of claim 1, wherein the second controller is further configured to:

8. The display device of claim 1, wherein the first display is communicatively coupled to the second controller; and the first controller is further configured to:

and sending a first display backlight starting instruction to the second controller, wherein the first display backlight starting instruction is used for the second controller to start the backlight of the first display in the first controller.

9. The display device of claim 8, wherein the second controller is further configured to:

10. A control method for returning a double-system-size double-screen application is applied to a first controller and is characterized by comprising the following steps:

receiving an HDMI switching identifier generated after the second controller inquires whether the designated application exists in a second display list according to the information of the designated application, wherein the second display list comprises a second application and a first application which needs to be displayed on a second display, and the HDMI switching identifier is used for representing whether the display content of the designated application needs to be displayed on the first display or the second display;

11. A control method for returning a double-system-size double-screen application is applied to a second controller, and is characterized by comprising the following steps: