CN113497884A

CN113497884A - Dual-system camera switching control method and display equipment

Info

Publication number: CN113497884A
Application number: CN202010250802.3A
Authority: CN
Inventors: 李东航
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-10-12
Anticipated expiration: 2040-04-01
Also published as: CN113497884B

Abstract

The application discloses a double-system camera switching control method and display equipment.A second controller judges that a designated application is a first application and needs to be displayed on a second display to generate a first HDMI switching identifier; the first controller generates a first switching instruction after receiving the first HDMI switching identifier, and controls the camera switching module to switch the camera to the first controller. After the appointed application exits, the first controller acquires information of a previous application, and the second controller judges that the previous application needs to be displayed on the first display to generate a second HDMI switching identifier; and the first controller generates a second switching instruction after receiving the second HDMI switching identifier, and controls the camera switching module to switch the camera back to the second controller. Therefore, according to the method and the display device provided by the invention, the first controller controls the camera switching module according to whether the HDMI switching identifier is received, so that the application can flexibly call the camera, and the camera is ensured to be coordinately switched between the two systems.

Description

Dual-system camera switching control method and display equipment

Technical Field

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

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 further, the setting of a double system and a double screen on the Android terminal equipment is possible. 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 the Android display equipment, in order to improve the application diversity of the display equipment with double systems and double screens, a camera can be installed on the display equipment, and the collection of user images is realized. Applications requiring the use of a camera in a dual system include "hi", mirror ", and" cat in good school ", and the functions of" video chat "," chat while watching ", and" chat while learning "can be realized. Since no social ability is provided on the second controller, and functions such as video chat, mirror viewing, etc. are provided on the first controller, the camera is connected to the second controller. Then the camera needs to be switched to the first controller when the application on the first controller needs to use the camera.

However, in the existing display device, the camera is fixedly connected to one system, and the camera cannot be switched in real time, so that the application in the dual systems cannot flexibly call the camera, and therefore, how to coordinate the camera switching between the two systems becomes a technical problem to be solved in the field.

Disclosure of Invention

The application provides a double-system camera switching control method and display equipment, and aims to solve the problem that the existing display equipment cannot realize coordinated switching of cameras between double systems.

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

a camera configured to acquire environmental image data;

a camera switching module configured to enable switching of the camera between a first controller and a second controller;

a first display communicatively connected with the first controller, the first display being 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 an application start instruction for starting a specified application;

in response to the application starting instruction, judging the application type of the specified application, wherein the application type is used for representing whether the specified application is a first application or a second application, and whether the specified application is an application needing to be displayed on a first display or an application needing to be displayed on a second display;

when the designated application is judged to be the first application and needs to be displayed on the second display, generating a corresponding first HDMI switching identifier and sending the corresponding first HDMI switching identifier to the first controller;

a first controller configured to receive an application start instruction carrying a first HDMI switching identifier sent by the second controller;

responding to an application starting instruction carrying a first HDMI switching identifier, and generating a first switching instruction;

sending the first switching instruction to the camera switching module, wherein the camera switching module is used for responding to the first switching instruction to switch the connection of the camera from the second controller to the first controller;

detecting whether the camera connected with the first controller is in a to-be-called state or not according to a preset detection rule;

and if the camera is in a to-be-called state, establishing connection between the specified application and the camera, and displaying the display content of the specified application on a second display corresponding to the first HDMI switching identifier.

Further, the application type comprises an application source and a presentation requirement; and the second controller is further configured to:

responding to the application starting instruction, and acquiring the package name of the specified application;

and determining an application source and a display requirement of the specified application based on the package name of the specified application, wherein the application source is used for representing whether the specified application belongs to the first controller or the second controller, and the display requirement is used for representing whether the display content of the specified application needs to be displayed on the first display or the second display.

Further, the preset detection rule comprises a preset detection duration; and the first controller is further configured to:

calling a camera service, and inquiring a camera ID list according to the preset detection duration;

and if the information of the camera connected with the first controller exists in the camera ID list, determining that the camera is in a state to be called.

Further, the preset detection rule comprises a preset detection duration and a preset detection frequency; and the first controller is further configured to:

counting the number of times of circular detection when the camera ID list is inquired;

and if the circulating detection times exceed the preset detection times, determining that the camera is in a to-be-called state.

Further, the second controller is further configured to:

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

and in response to the instruction for turning off the first display backlight, turning off the backlight of the first display in the first controller.

Further, the second controller is further configured to:

starting a content display application, and generating a display interface in the second display, wherein the display interface of the content display application is used for displaying the display content of the specified application;

and calling a data interface which is switched by the first controller based on the first HDMI switching identifier, and displaying the display content of the specified application in a display interface corresponding to the second display.

Further, the data interface comprises an HDMI interface; and the second controller is further configured to:

calling a signal source switching module, and switching a signal source of the second controller to an HDMI (high-definition multimedia interface) of the first controller, wherein the HDMI is used for transmitting display content of a specified application in the first controller;

and receiving the display content of the specified application transmitted by the HDMI interface, and presenting the display content in a display interface corresponding to the second display.

Further, the first controller is further configured to:

and switching the HDMI interface of the first controller to establish communication connection with a second display based on the first HDMI switching identifier.

In a second aspect, the present application also provides a display device, including:

a camera configured to acquire environmental image data;

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

determining an application type of the prior application based on the information of the prior application, wherein the application type is used for representing whether the prior application is a first application or a second application and whether the prior application is an application needing to be displayed on a first display or an application needing to be displayed on a second display;

when the prior application is judged to be the first application and needs to be displayed on the first display, generating a corresponding second HDMI switching identifier and sending the second HDMI switching identifier to the first controller;

a first controller configured to receive an exit event broadcast generated by a designated application in response to an application return instruction generated by the designated application when returned to a previous application;

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

receiving a second HDMI switching identifier generated after the second controller judges the application type of the prior application according to the information of the prior application;

acquiring information of a camera connected with the first controller based on the second HDMI switching identifier, and detecting whether the camera is in an occupied state;

and generating a second switching instruction when the camera is not in an occupied state, and sending the second switching instruction to the camera switching module, wherein the camera switching module is used for responding to the second switching instruction to switch the connection of the camera from the first controller to the second controller.

Further, the first controller is further configured to:

after the second HDMI switching identifier is received, a camera application list and camera attributes connected with the first controller are obtained, and application information needing to use a camera is stored in the camera application list;

judging whether any application occupies the camera or not based on the camera attribute and the camera application list;

and if any application occupies the camera, determining that the camera is not in an occupied state.

Further, the first controller is further configured to:

the camera application list comprises the name of each application package needing to use the camera;

acquiring a current attribute value of the camera attribute;

if the current attribute value is the application package name, judging whether the application package name in the camera attribute is matched with the application package name in the camera application list;

if the application package name in the camera attribute is matched with the application package name in the camera application list, determining that the camera is in an occupied state;

and if the current attribute value is a null value, determining that the camera is not in an occupied state.

Further, the first controller is further configured to:

acquiring a current HDMI output identifier corresponding to the display content of the specified application when the display content is displayed, wherein the HDMI output identifier is used for representing whether the display content of the specified application is displayed on a first display or a second display;

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

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

Further, the second controller is further configured to:

searching the last application displayed on the second display, wherein the last application refers to the application displayed in the second display before the specified application is displayed;

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

Further, 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.

In a third aspect, the present application further provides a dual-system camera switching control method, applied to a second controller, including the following steps:

receiving an application starting instruction for starting a specified application;

and when the appointed application is judged to be the first application and needs to be displayed on the second display, generating a corresponding first HDMI switching identifier, and sending the corresponding first HDMI switching identifier to the first controller, so that the first controller switches the camera based on the first HDMI switching identifier.

In a fourth aspect, the present application further provides a dual-system camera switching control method, applied to a first controller, including the following steps:

receiving an application starting instruction which is sent by the second controller and carries a first HDMI switching identifier;

In a fifth aspect, the present application further provides a dual-system camera switching control method, applied to a second controller, including the following steps:

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

and when the prior application is judged to be the first application and needs to be displayed on the first display, generating a corresponding second HDMI switching identifier, and sending the second HDMI switching identifier to the first controller, so that the first controller switches the camera based on the second HDMI switching identifier.

In a sixth aspect, the present application further provides a dual-system camera switching control method, applied to a first controller, including the following steps:

receiving an exit event broadcast generated by a designated application when responding to an application return instruction, wherein the application return instruction is an instruction generated when the designated application returns to a previous application;

In a seventh aspect, the present application further provides a storage medium, where the storage medium may store a program, and when the program is executed, the program may implement some or all of the steps in the embodiments of the dual-system camera switching control method provided in the present application.

As can be seen from the foregoing technical solutions, in the dual-system camera switching control method and the display device provided in the embodiments of the present invention, when the second controller determines that the designated application is the first application and needs to be displayed on the second display, the second controller generates the first HDMI switching identifier and sends the first HDMI switching identifier to the first controller; the first controller generates a first switching instruction after receiving the first HDMI switching identifier and sends the first switching instruction to the camera switching module so as to switch the connection of the camera from the second controller to the first controller. After the appointed application exits, the first controller acquires information of a previous application and sends the information to the second controller, and when the second controller judges that the previous application is the first application and needs to be displayed on the first display, the second controller generates a second HDMI switching identifier and sends the second HDMI switching identifier to the first controller; and the first controller generates a second switching instruction after receiving the second HDMI switching identifier and sends the second switching instruction to the camera switching module so as to switch the connection of the camera back to the second controller. Therefore, according to the method and the display device provided by the embodiment of the invention, the first controller controls the camera switching module according to whether the HDMI switching identifier is received, so that the camera is switched in real time along with the started application, the application on the dual systems can flexibly call the camera, and the camera can be further ensured to be coordinately switched between the two systems.

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 of 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 illustrating a structure of a display device according to an exemplary embodiment;

fig. 12 is a first flowchart illustrating a dual system camera switching control method according to an exemplary embodiment;

fig. 13 is a first data flow diagram illustrating a dual system camera switching control method according to an exemplary embodiment;

fig. 14 is a second flowchart illustrating a dual system camera switching control method according to an exemplary embodiment;

FIG. 15 is a flow chart illustrating a method of detecting whether a camera is available in accordance with an exemplary embodiment;

FIG. 16 is a flow chart illustrating another method of detecting whether a camera is available in accordance with an illustrative embodiment;

fig. 17 is a third flowchart illustrating a dual system camera switching control method according to an exemplary embodiment;

fig. 18 is a second data flow diagram illustrating a dual system camera switching control method according to an exemplary embodiment;

fig. 19 is a fourth flowchart illustrating a dual system camera switching control method according to an exemplary embodiment;

FIG. 20 is a flow chart illustrating a method of detecting whether a camera is in an occupied state according to an exemplary embodiment;

fig. 21 is a flowchart illustrating a method for determining whether an application occupies a camera according to an exemplary embodiment.

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 for the purpose of facilitating understanding of the contents of the present application, 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).

Fig. 1 is a schematic diagram illustrating an operation scenario between a display device and a control apparatus. 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 in 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 movement keys, a voice input key, a menu key, a power 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 have a software application installed thereon, so that connection communication between the two can be realized through a network communication protocol, and the purpose of one-to-one control operation and data communication can be further realized. 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 controlled by different hardware systems respectively.

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 the multi-party interactive picture while displaying the 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 those skilled in the art will appreciate that the display device 200 may vary somewhat in its capabilities and configuration as desired.

The display apparatus 200 may additionally provide an intelligent network tv function that provides a computer support function in addition to the broadcast receiving tv 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 camera adopted in the present application may have 1600 ten thousand pixels, 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 over which a window for video chat is displayed. 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 human posture and motion, limb detection and tracking and human skeleton key point data detection are obtained through the camera, and then the human posture and motion, the limb detection and tracking and the human skeleton key point data detection are fused with the animation in the game, so that the game of 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 key 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, it 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 modules of WIFI, bluetooth, NFC, etc. may send the user input command to the display device 200 through the WIFI protocol, or the bluetooth protocol, or the NFC protocol code.

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 configuration 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 providing 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 3 and the power board 4 may be disposed on one board, or may be disposed on different boards respectively. 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 components 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 board 4 needs to convert the ac power into dc power required by the load, and the dc power is usually in different specifications, for example, 18V is required for the audio components, 12V/18V is required for the 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 adjustment mode of the signal can be 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 tuner/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 HDMI251, 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 213 and the ROM 214, 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 used for carrying out control and data communication with external equipment. 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 application programs.

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.

A 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 and an audio signal.

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, which may be used to adapt to display parameter changes, etc.; the system may further include an image collector 341, such as a camera, a video camera, etc., which may be configured to collect external environment scenes, collect attributes of the user or interact gestures with the user, adaptively change display parameters, and identify user gestures, so as to implement a function of interaction with the user.

An external device interface 350, which 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 2909, a power control module 2910, an operating system 2911, and other applications 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 thus, detailed description thereof is omitted here.

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 programs 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 2907-1, 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 and the like perform a corresponding relationship with 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 to 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 2912. In some embodiments, an aspect is implemented within the operating system 2911 and concurrently in the application programs 2912 for listening for various user input events, and will implement one or more sets of predefined operations in response to various events referring to the recognition of various types of events or sub-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 3911 of the second controller 310 is similar to the operating system 2911 of the first controller 210 in function, reference may be made to the operating system 2911 for details, which are not repeated herein.

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 application layer 2912 of the first controller 210 may include, but is 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 3912 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 apparatus 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 realize a certain function, and the second controller 310 and the first controller 210 cooperate to realize 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 page 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 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 sections or the content of the items in the view sections 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, a 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 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. Referring to fig. 10 and 11, 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 200 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 first display 280 is communicatively connected to the first controller 210, the first display 280 is configured to display content of a first application, the first application refers to an application configured in the first controller 210; the second display 380 is communicatively connected to the second controller 310, and the second display 380 is configured to display content of a first application or display content of a second application, which is an application configured in the second controller 310.

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, when a user conducts video chat, the content of the system A is displayed through a second display (large screen) instead of a first display (small screen); and when the user quits the video chat, the content of the system A is displayed through the first display, and the content of the system N is displayed through the second display.

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 at mirror" application, and displays the application before starting the "look at mirror" application, i.e., the homepage of system a, in the first display; 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.

In order to implement the video call function of the display device, the display device provided in this embodiment is further configured with a camera, the camera is configured to collect environment image data, and the camera is connected to the system N by default. In order to realize the coordinated switching of the camera between the system N and the system A, the first controller is configured with a camera switching module, a first development encapsulation module (Framework A) and an HDMI Switch module. The camera switching module is connected with the camera, and the camera switching module is connected to the system N by default, namely the camera is connected to the system N by default. When the application in the first controller needs to call the camera, the camera switching module can switch the camera to be connected with the first controller, and the coordinated switching of the camera between the first controller and the second controller is realized. The first controller is configured to control content display of the first display and switching of the camera, 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 a 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 with a signal source switching module and a second development packaging module (Framework N), the second controller is configured to control content display of the second display, the signal source switching module is configured to switch data interfaces of the first controller and the second controller, when the first application needs to be displayed on the second display, the signal source switching module can switch a currently connected data interface (normally, the data interface of the second controller is connected) to the data interface of the first controller, so that the data interface of the first controller is connected with the second display, and display content of the first application is displayed on the second display; then, when the second application is displayed on the second display, the signal source switching module may switch the currently connected data interface (which may be the data interface of the first controller) to the data interface of the second controller, and establish a connection between the data interface of the second controller and the second display, so that the display content of the second application is displayed on the second display. The second development encapsulation module is used for storing the second application started each time in the second controller according to the 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.

In order to ensure that an application configured in a first controller can call a camera, an embodiment of the present invention provides a display device, where a first controller determines whether a camera needs to be used according to an application started by a current display device, and when the camera needs to be used, a camera switching module is controlled to switch the camera from being connected to a second controller to the first controller, and after the application in the first controller calls the camera, the camera switching module is controlled to switch the camera from being connected to the first controller to the second controller, so as to implement real-time switching of the camera along with the started application, so that the application on two systems flexibly calls the camera, and further ensure that the camera can be coordinately switched between the two systems.

Fig. 12 is a first flowchart illustrating a dual system camera switching control method according to an exemplary embodiment; fig. 13 is a first data flow diagram illustrating a dual system camera switching control method according to an exemplary embodiment. Specifically, referring to fig. 12 and fig. 13, in the display device provided in the embodiment of the present invention, when performing the coordinated switching of the cameras, the second controller is configured to execute the method steps shown in fig. 12:

and S11, receiving an application starting instruction for starting the specified application.

And the user selects a designated application on the second display through the remote controller to start, generates an application starting instruction and sends the application starting instruction to the second controller, and the second controller controls the starting of the designated application according to the application starting instruction.

And S12, responding to the application starting instruction, judging the application type of the designated application, wherein the application type is used for representing whether the designated application is a first application or a second application, and 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.

Since the second controller is connected to the camera by default, in order to determine whether the camera needs to be switched, the method adopted in this embodiment is to determine whether the designated application is an application that needs to be displayed on the second display and belongs to the first controller.

Therefore, after receiving the application start instruction, the second controller needs to determine the application type of the designated application, that is, whether the designated application belongs to the first application in the first controller or the second application in the second controller, and whether the designated application needs to be displayed on the first display or the second display.

Specifically, the application type includes an application source and a presentation requirement, and, when the application type of the specified type is determined, the second controller is further configured to perform the following steps:

and step 121, responding to the application starting instruction, and acquiring the package name of the specified application.

And step 122, determining an application source and a presentation requirement of the specified application based on the package name of the specified application, wherein the application source is used for representing whether the specified application belongs to the first controller or the second controller, and the presentation requirement is used for representing whether the display content of the specified application needs to be displayed on the first display or the second display.

The second controller can obtain the package name of the specified application according to the application starting instruction, and the package name can determine the name of the specified application. Since the application package name is named by the controller and the presentation display to which the application belongs, the application source and the presentation requirement of the specified application can be determined according to the package name.

For example, the package name format may be "specify application name.

And S13, when the designated application is judged to be the first application and needs to be displayed on the second display, generating a corresponding first HDMI switching identifier, and sending the corresponding first HDMI switching identifier to the first controller, so that the first controller switches the camera based on the first HDMI switching identifier.

If the second controller determines that the type of the specified application is the first application and the application which needs to be displayed on the second display according to the packet name of the specified application, at this time, because the application started by the user is the application in the first controller and the application needs to be displayed on the second display, the HDMI Switch module of the first controller needs to control the HDMI data interface of the first controller to be switched, so that the HDMI Switch module of the first controller connects the display content output interface of the specified application in the first controller to the second display, and the data interface is switched.

At this time, the second controller generates a first HDMI switching identifier corresponding to the application type of the specified application, where the first HDMI switching identifier is used to indicate that the first controller needs to switch the HDMI data interface and output the HDMI data interface to the second display.

If the second controller determines that the designated application is not the first application belonging to the first controller and is not an application that needs to be displayed on the second display, the HDMI data interface in the first controller does not need to be switched, in which case the second controller will not generate the first HDMI switch identifier.

When the second controller determines that the first controller needs to switch the HDMI data interface, the corresponding first HDMI switching identification needs to be sent to the first controller, if the first controller receives the first HDMI switching identification, the fact that the appointed application needs to use the camera is indicated, the camera can be judged to need to be switched, and the camera and the second controller are connected to be connected with the first controller.

Fig. 14 is a second flowchart illustrating a dual system camera switching control method according to an exemplary embodiment. Specifically, referring to fig. 14, in the display device provided in the embodiment of the present invention, when performing the coordinated switching of the cameras, the first controller is configured to execute the steps of the dual-system camera switching control method shown in fig. 14:

and S21, receiving an application starting instruction which is sent by the second controller and carries the first HDMI switching identifier.

S22, responding to the application starting instruction carrying the first HDMI switching identification, and generating a first switching instruction.

After receiving the first HDMI switching identifier sent by the second controller, the first controller can determine that the camera needs to be switched, and generate a first switching instruction, wherein the first switching instruction is used for switching the connection between the camera and the second controller to the connection between the camera and the first controller.

If the designated application is a first application that is not attributed to the first controller and is not an application that requires display on the second display, then the second controller will not generate the first toggle identification. Therefore, the first controller does not receive the first switching identifier, and at this time, it indicates that the camera does not need to be switched, and the first controller does not need to control the switching of the camera, and the default connection between the camera and the second controller is maintained.

And S23, sending the first switching instruction to the camera switching module, wherein the camera switching module is used for responding to the first switching instruction to switch the connection of the camera from the second controller to the first controller.

The first controller sends the first switching instruction to the camera switching module, and the camera switching module controls the connection state of the camera, namely the second controller which is connected currently is switched to be connected with the first controller.

After the first controller establishes connection between the camera and the first controller based on the first switching instruction, the first controller can respond to the first HDMI switching identifier, switch the HDMI interface of the first controller to establish communication connection with the second display, and further realize that the display content of the specified application is output to the second display through the HDMI interface for display.

And S24, detecting whether the camera connected with the first controller is in a to-be-called state or not according to a preset detection rule.

The first controller needs to initialize the camera after the camera switching module is called to switch the camera to the first controller, so as to ensure that the camera can be called.

For this reason, in this embodiment, in order to ensure that the camera can be specified to be called by the application, it is required to detect whether the camera is in a to-be-called state through an initialization process, that is, whether the camera is available according to a preset detection rule. The current camera is a camera connected to the first controller through a switching operation.

In one possible specific implementation, the preset detection rule includes a preset detection duration, and in this embodiment, the preset detection duration may be set to 200ms for one detection.

A flowchart of a method of detecting whether a camera is available according to an exemplary embodiment is illustrated in fig. 15. Referring to fig. 15, in detecting whether the camera is available, the first controller is further configured to:

s2411, calling a camera service, and inquiring a camera ID list according to a preset detection time length.

S2412, if the information of the camera connected with the first controller exists in the camera ID list, determining that the camera is in a to-be-called state.

When the first controller initializes the cameras, the cameras which complete the initialization process are stored in a camera ID list, and the serial numbers of the cameras which complete the initialization process are stored in the camera ID list. If the serial number of a certain camera is located in the camera ID list, the fact that the camera has completed initialization processing can be determined, namely the camera is in a to-be-called state, and the fact that the camera is available is determined.

Therefore, in this embodiment, the first controller calls a camera service, and the camera service is used to manage information of the camera. The camera service acquires the camera ID list and queries the camera ID list according to a preset detection duration, for example, the camera ID list may be queried within 200 ms.

The information of the camera can be represented by the serial number of the camera, and if the serial number of the camera which is in a connection state with the first controller exists in the camera ID list of the camera service, the camera is determined to be in a to-be-called state.

In another possible embodiment, when the display device detects the usage status attribute of the camera, the adopted preset detection rule may include a preset detection duration and a preset detection number. The preset detection times refer to the maximum detection times for detecting the use state attribute of the camera.

Fig. 16 is a flowchart illustrating another method of detecting whether a camera is available according to an exemplary embodiment. Specifically, referring to fig. 16, in the present embodiment, in detecting whether the camera is available, the first controller is further configured to:

s2421, calling a camera service, and inquiring a camera ID list according to a preset detection time length.

S2422, counting the cycle detection times when the camera ID list is inquired.

And S2423, if the circulating detection times exceed the preset detection times, determining that the camera is in a to-be-called state.

In this embodiment, the first controller calls the camera service cycle detection camera ID list according to a preset detection duration, for example, 200 ms. After the first detection is completed in 200ms, the second detection is performed, and so on.

In order to ensure that the camera which is connected with the first controller can be called by specified applications in time, the first controller counts the number of times of loop detection, when the number of times of loop detection exceeds the preset number of times of loop detection, the camera is determined to be in a state to be called, and the loop detection process can be finished.

For example, the preset detection times can be set to 3 times, and if the cycle times when the camera service circularly detects the camera ID list exceeds 3 times, it is determined that the camera is in a to-be-called state.

The two methods for detecting whether the camera is available provided in the above embodiment are merely exemplary examples, and in practical applications, other methods may also be used to detect whether the camera is available, and this embodiment is not particularly limited.

And S25, if the camera is in a to-be-called state, establishing connection between the specified application and the camera, and displaying the display content of the specified application on the second display corresponding to the first HDMI switching identifier.

And after the camera is judged to be in a state to be called, the camera is connected with the specified application, so that the specified application is communicated with the camera, the camera is called by the specified application, and the specified application is started. And displaying the display content of the specified application on a second display corresponding to the first HDMI switching identifier while the specified application calls the camera.

After the second controller judges that the designated application needs to be displayed in the second display, the first display does not need to provide social contact capability, and then can enter a standby state, namely the backlight of the first display can be turned off. The backlight of the first display is controlled by a second controller of the second controllers, and thus, the first display is communicatively coupled to the second controller. At this time, in performing turning off the first display backlight, the second controller is further configured to perform the following method:

step 501, receiving a first display backlight closing instruction sent by a first controller, where the first display backlight closing instruction is used to close the backlight of a first display in the first controller.

Step 502, in response to the instruction to turn off the first display backlight, turning off the first display backlight in the first controller.

After the first controller receives the application starting instruction which is sent by the second controller and carries the first HDMI switching identifier, the first display does not need to display relevant information of the specified application, and therefore the first controller can generate an instruction for closing the backlight of the first display and send the instruction to the second controller. The second controller receives and responds to the instruction of closing the first display backlight, and the second controller closes the first display backlight.

And after the backlight of the first display is closed, the first controller continues to execute the processes of camera switching and HDMI interface switching. In this embodiment, the timing when the second controller executes the instruction to turn off the backlight of the first display is prior to the process that the second controller calls the signal source switching module to switch the signal source and displays the display content of the designated application in the second display, and the effect of turning off the backlight first is presented, so that the situation that the backlight of the first display is turned on all the time to affect the visual effect of the user and the experience is poor in the process of switching the signal source and displaying the display content of the designated application is avoided.

To realize the display content of the designated application to be displayed in the second display, the second controller needs to call a content presentation application (LiveTV) to perform the display content presentation, and to this end, the second controller is further configured to:

step 601, starting a content display application, and generating a display interface in the second display, wherein the display interface of the content display application is used for displaying the display content of the designated application.

Step 602, calling the data interface switched by the first controller based on the first HDMI switching identifier, and presenting the display content of the designated application in the display interface corresponding to the second display.

A content presentation application (LiveTV) is configured in the second controller and is started by the second controller. And the content display application is opened to provide a display interface and is displayed in the second display, and the display content of the specified application is presented in the display interface.

And the second controller starts the content display application after sending the application starting instruction to the first controller so as to generate a display interface in the second display.

After the data interface of the first controller is switched to the HDMI interface by the first controller according to the interface switching identifier carried in the application starting instruction, the second controller calls the HDMI interface of the first controller, and the display content of the specified application is output to the second display through the HDMI interface and is presented in the display interface.

Specifically, when the second controller calls the switched data interface of the first controller to display the display content of the specified application, the second controller is further configured to:

step 701, calling a signal source switching module, and switching a signal source of the second controller to an HDMI interface of the first controller, where the HDMI interface is used to transmit display content of a specified application in the first controller.

When the data interface between the two controllers is switched, the switched data interface is an HDMI interface. And after the data interface of the first controller is switched to the HDMI, the first controller waits to be called.

The signal source switching module is used for switching the signal source (data interface) in the display equipment, so that the second controller controls the signal source switching module to switch the signal source of the second controller where the target display is located to the HDMI of the first controller, and the HDMI of the first controller transmits the display content of the designated application.

In the process of switching the signal source by the signal source switching module, although the switching process is short, a blank space appears in the second display. Therefore, in order to avoid displaying the switching state on the second display in a flashing manner, a default interface can be generated and displayed on the second display in the signal source switching process, and the signal source callback process is blocked. And after the signal source switching is completed, synchronously displaying the display interface of the second display and the display content of the designated application.

And step 702, receiving the display content of the specified application transmitted by the HDMI interface, and presenting the display content in the display interface corresponding to the second display.

After the signal source switching module completes the switching of the signal source and the HDMI of the first controller is connected with the second display, the second controller can receive the display content of the designated application in the first controller transmitted through the HDMI. At this time, the second controller has opened the content presentation application and generated the presentation interface in the second display, and thus, the display content of the specified application can be presented in the presentation interface.

In the display device provided by the embodiment of the present invention, when the dual-system camera is switched and controlled, the second controller determines the application type of the started designated application, and if the designated application is the first application and needs to be displayed on the second display, the corresponding first HDMI switching identifier is generated and sent to the first controller. The first controller receives the first HDMI switching identification, the fact that the camera needs to be switched can be judged, a first switching instruction is generated immediately, and the first switching instruction is sent to the camera switching module, so that the connection of the camera is switched to the first controller through the second controller. And then detecting whether the camera connected with the first controller is in a to-be-called state or not according to a preset detection rule, if so, establishing connection between the specified application and the camera, and displaying the display content of the specified application on a second display corresponding to the first HDMI switching identifier. Therefore, the display equipment can realize the coordination switching of the camera between the two systems when the application in the first controller is started and the display is needed on the second display.

For example, in a scenario where the camera is switched to the first controller: take the example of starting the designated application "look at the mirror" of the first controller in the display device. After receiving an application starting instruction for starting the mirror-looking application, the second controller determines that the mirror-looking application is an application which is in the first controller and needs to be displayed on the second display, generates a first HDMI switching identifier, and sends the first HDMI switching identifier to the first controller. The first controller generates a first switching instruction according to the first HDMI switching identifier, and switches the camera to be connected with the first controller; the second controller is then notified to turn off the backlight of the first display. And after the backlight of the first display is turned off, the first controller outputs the HDMI interface of the first controller to the second display. And then, circularly detecting whether the camera is in a to-be-called state or not according to the preset detection duration of 200ms, and if the number of circulation times in the detection process exceeds the preset detection number of times or the camera is in the to-be-called state, establishing connection between the camera and the specified application to realize the starting of the specified application. At this time, the second controller starts a Live TV (content presentation application), switches the HDMI interface connection of the signal source and the first controller, and displays the display content of the "look at the mirror" application in the second display. Therefore, when the application in the first controller is started and the application displayed on the second display is needed, the camera switching module is controlled to switch the connection between the camera and the second controller to the first controller.

When the designated application started in the display device is an application configured in the first controller and the application needs to be displayed on the second display, the designated application needs to use the camera, at this time, the first controller controls the camera switching module to switch the connection between the camera and the second controller to the first controller, and the display content of the designated application is displayed on the second display (large screen). If the designated application is finished to be used, namely after the user clicks the remote controller to control the designated application to return to exit, the HDMI interface of the first controller needs to be switched to the first display (small screen), and at the moment, after the first controller returns from the designated application, the first display needs to call the display content of the previous application started before the designated application is started to display. If the previous application is an application that does not require the use of a camera, the camera will then switch back to the second controller by connecting to the first controller.

Therefore, in this scenario, according to the display device provided by the embodiment of the present invention, after the first controller returns from the designated application to the previous application, the camera is also switched back to the second controller by the first controller, so as to implement coordinated switching of the camera.

Fig. 17 is a third flowchart illustrating a dual system camera switching control method according to an exemplary embodiment; fig. 18 is a second data flow diagram illustrating a dual system camera switching control method according to an exemplary embodiment. Referring to fig. 17 and 18, the display device provided in the present embodiment, when implementing the coordinated switching of the cameras, the first controller is configured to execute the following steps:

s31, receiving an exit event broadcast generated by the designated application in response to an application return instruction generated by the designated application when returning to the previous application.

When the display content of the application (specified application) in the first controller that has been started has been presented on the second display. If the user wants to quit the appointed application, the user can trigger the remote controller to generate a return instruction and send the return instruction to the appointed application. After receiving the return instruction, the designated 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.

Upon exit of a specified application in a first controller (system a) that is displaying in a second display, an exit event broadcast is sent as: com.sense.tv.action.sil _ BACK _ EVENT is broadcast to the first controller. This ACTION broadcast represents an application to exit and return to the previous application. The exit event broadcast is used for identifying that the designated application is 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 S32, responding to the exit event broadcast, acquiring the information of the prior application, and sending the information of the prior application to the second controller.

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

The first controller sends the acquired information of the specified application to the second controller, so that the second controller judges the application type of the previous application, namely judges whether the previous application is an application needing to be displayed on the first display or an application needing to be displayed on the second display, further judges whether the previous application needs to use a camera or not, and displays the display content of the previous application on an accurate display.

Fig. 19 is a fourth flowchart illustrating a dual system camera switching control method according to an exemplary embodiment. Referring to fig. 19, in order to implement the coordinated switching of the dual-system cameras, the second controller needs to determine the application type of the previous application, and for this purpose, the second controller is configured to:

and S41, receiving information of a previous application sent by the first controller, wherein the previous application is the last application displayed before the appointed application is displayed in the first controller.

And S42, judging the application type of the prior application based on the information of the prior application, wherein the application type is used for representing whether the prior application is a first application or a second application and whether the prior application is an application needing to be displayed on a first display or an application needing to be displayed on a second display.

The second controller receives the information of the prior application sent by the first controller to judge the application type of the prior application. In this embodiment, since the previous application is an application in the first controller, here, it is only necessary for the second controller to determine whether the previous application needs to be displayed in the first display or the second display.

When the display requirement of the prior application is judged, the query can be carried out in the display list of the second display. The second display list stores all application names required to be displayed on the second display in the first controller and the second controller, for example, package names of the second application and the first application required to be displayed on the second display. The second display list is stored within the second development package module.

Therefore, after receiving the information of the designated application sent by the first controller, the second controller calls the second development packaging module to acquire the display list of the second display. The information of the previous application comprises a name of a previous application package, the name of the package is used for uniquely identifying the starting type of the previous application, namely whether the previous application needs to be displayed on the first display or the second display, and the display list of the second display comprises the name of each application package needing to be displayed on the second display.

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

And S43, when the previous application is judged to be the first application and needs to be displayed on the first display, generating a corresponding second HDMI switching identifier, and sending the second HDMI switching identifier to the first controller.

If the second controller judges that the type of the prior application is the first application and the application which needs to be displayed on the first display is determined according to the information of the prior application, at this time, after the specified application returns, the prior application called by the first controller is the application in the first controller, and the application needs to be displayed on the first display, so that the HDMI data interface of the first controller needs to be controlled to be switched, and the HDMI Switch module of the first controller connects the display content output interface of the prior application in the first controller to the first display, so that the data interface is switched.

At this time, a second HDMI switching identifier corresponding to the application type of the previous application is generated by the second controller, and the second HDMI switching identifier is used for representing that the first controller needs to switch the HDMI data interface to output to the first display.

And if the second controller judges that the prior application is the application needing to be displayed on the second display, the HDMI data interface in the first controller does not need to be switched, and the connection of the HDMI data interface of the first controller to the second display is continuously maintained.

When the second controller determines that the first controller needs to switch the HDMI data interface, the corresponding second HDMI switching identification needs to be sent to the first controller, if the first controller receives the second HDMI switching identification, the situation that the camera is not needed to be used in the prior application is shown, the camera can be judged to need to be switched, and the camera and the first controller are connected to be switched to be connected with the second controller.

And S33, receiving a second HDMI switching identifier generated after the second controller judges the application type of the prior application according to the information of the prior application.

S34, acquiring information of the camera connected with the first controller based on the second HDMI switching identifier, and detecting whether the camera is in an occupied state.

The first controller receives a second HDMI switching identifier sent by the second controller, which indicates that the previous application needs to be displayed on the first display and does not need to use a camera, so that the first controller needs to switch the camera, that is, after the camera needs to be switched, the connection between the second controller and the camera needs to be established, and the default connection state of the camera is recovered. If the camera is called by other applications after exiting from the connection with the designated application, at this time, the connection between the camera and the second controller cannot be realized.

When whether the camera is in an occupied state or not is detected, the first controller calls a camera service to acquire information of the camera which is in a connection state with the first controller.

Fig. 20 is a flowchart illustrating a method of detecting whether a camera is in an occupied state according to an exemplary embodiment. Specifically, referring to fig. 20, the present embodiment provides the display apparatus, when detecting whether the camera is in an occupied state, the first controller is further configured to:

and S341, after receiving the second HDMI switching identifier, acquiring a camera application list and camera attributes connected with the first controller, wherein application information needing to use a camera is stored in the camera application list.

And S342, judging whether any application occupies the camera or not based on the camera attribute and the camera application list.

And S343, if any application does not occupy the camera, determining that the camera is not in an occupied state.

After receiving the second HDMI switching identifier, the first controller determines that the camera needs to be switched, and therefore when the camera service is called to determine whether the camera is occupied, the first controller needs to acquire the camera application list and the attribute of the camera in a connection state with the first controller. The camera application list can be stored in the camera service, and application information needing to use the camera is stored in the camera application list.

The camera attribute may be set when the camera is called, for example, if the camera is called by some application, the attribute of the camera may be set to sys. If the application disconnects from the camera, the camera attribute is set to sys.

Therefore, the camera attribute and the camera application list are compared, if the camera occupied by any application does not exist in comparison, the camera can be determined not to be in the occupied state, and at the moment, the camera is in the idle state, can be switched and is connected with the second controller.

Fig. 21 is a flowchart illustrating a method for determining whether an application occupies a camera according to an exemplary embodiment. Specifically, referring to fig. 21, in particular, the display device provided in this embodiment, when determining whether there is an application occupying camera, the first controller is further configured to:

s3421, acquiring the current attribute value of the camera attribute.

The camera attribute is set by the application package name calling the camera, if a certain application calls the camera, the camera attribute is the package name of the application, and if the certain application is not called by any application, the camera attribute is null. Thus, the current attribute value may include an application package name and a null value.

S3422, if the current attribute value is the application package name, judging whether the application package name in the camera attribute is matched with the application package name in the camera application list.

The camera application list stores each application package name that needs to use the camera application. When the camera service detects that the current attribute value of the camera is the application package name, comparing the application package name in the camera application list with the application package name corresponding to the current attribute value.

If the application package name corresponding to the current attribute value is consistent with one of the application package names in the camera application list in comparison, it is indicated that a certain application needing to use the camera occupies the camera; if the application package name corresponding to the current attribute value is inconsistent with any application package name in the camera application list, it indicates that the camera is not called by an application needing to use the camera, and the camera is in an idle state.

S3423, if the application package name in the camera attribute is matched with the application package name in the camera application list, determining that the camera is in an occupied state.

And calling a camera service by the first controller to judge that the application package name in the camera attribute is matched with the application package name in the camera application list, determining that the camera is in an occupied state, and at the moment, switching operation cannot be performed on the camera.

S3424, if the current attribute value is a null value, determining that the camera is not in an occupied state.

When the camera service detects that the current attribute value of the camera is a null value, the camera is not connected with any application configured by the two controllers, namely the camera is determined not to be in an occupied state, and at the moment, the camera can be switched.

And S35, generating a second switching instruction when the camera is not in an occupied state, and sending the second switching instruction to the camera switching module, wherein the camera switching module is used for responding to the second switching instruction to switch the connection of the camera from the first controller to the second controller.

When the first controller detects that the camera is not in an occupied state, a second switching instruction is immediately generated, the second switching instruction is used for switching the connection between the camera and the first controller to the connection between the camera and the second controller, and the default connection state between the camera and the second controller is recovered.

If the second controller judges that the prior application is the application in the first controller and does not need to be displayed in the second display, the first controller receives the second HDMI switching identifier, at the moment, the prior application does not need to use the camera, so that a second switching instruction is generated and sent to the camera switching module, the camera switching module controls the connection state of the camera, namely, the first controller which is connected at present is switched back to be connected with the second controller.

And if the second controller determines that the previous application is an application that needs to be displayed on the second display, that is, an application that needs to use the camera, the second controller will not generate the second switching flag. Therefore, the first controller cannot receive the second switch identifier, which means that the HDMI interface of the first controller does not need to be switched, and the camera does not need to be switched. Therefore, the first controller does not need to control the switching of the camera, and the connection between the camera and the first controller is maintained.

After the designated application in the first controller returns, the second controller determines that the previous application in the first controller does not need to be displayed in the second display, and therefore, the HDMI interface of the first controller needs to be switched back to be connected with the first display to display the display content of the previous application in the first display. To this end, in order to ensure that the display content of the previous application can be accurately displayed in the corresponding display, in the display device provided in the embodiment of the present invention, when performing the presentation of the display content of the previous application, the first controller is further configured to:

step 1201, obtaining a current HDMI output identifier corresponding to the display content of the specified application when displaying, where the HDMI output identifier is used to represent whether the display content of the specified application is being displayed on the first display or the second display.

Step 1202, judging whether the second HDMI switching identifier is consistent with the current HDMI output identifier.

Step 1203, if the second HDMI switch identifier is not consistent with the current HDMI output identifier, displaying the previously applied display content on the first display corresponding to the second HDMI switch identifier.

In this embodiment, if the previous application is an application that needs to be displayed on the first display, it is indicated that the second HDMI Switch identifier generated by the second controller needs to control the output interface of the HDMI Switch module to be switched to the first display. At this time, in order to accurately determine whether the HDMI interface currently connected to the designated application needs to perform switching, that is, whether the HDMI interface is switched to the first display, it is necessary to obtain a current HDMI output identifier when the designated application displays content on a certain display, so as to clearly specify whether the HDMI output interface of the designated application is currently connected to the first display or the second display.

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

Since the second HDMI switch identifier may indicate that the output interface of the previous application should be connected to the first display, if the second HDMI switch identifier is not consistent with the current HDMI output identifier, that is, the display being displayed by the designated application is not consistent with the display to be displayed by the previous application, it indicates that the display content of the designated 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 second HDMI switch identifier, and display the previously applied display content on the first display, so that the designated application outputs the display content in the first controller to the first display and displays the display content after executing the return.

After the designated application displayed in the second display is exited, the first display displays the display content of the previous application, and at this time, the second display also displays the display content of the application that was started before the designated application was displayed. To this end, in the display device provided in the embodiment of the present invention, when it is ensured that the display content exists in the second display, the second controller is further configured to:

step 1301, searching the previous application displayed on the second display, wherein the previous application refers to the application displayed before the designated application is displayed in the second display.

Step 1302, after the display of the display content of the designated application is finished, acquiring the display content of the previous application, and displaying the display content of the previous application on the second display.

The second controller receives the information of the prior application sent by the first controller, judges the starting type of the prior application, calls the second development packaging module, and acquires the last application displayed before the appointed application is displayed in 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 specified application, acquires the display content of the last application and displays the display content on the second display, and after the specified application returns to execute, the display content in the second controller is output to the second display and displayed.

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 previously applied display content. 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 previous application to the first display. Therefore, the first controller generates a first display backlight starting instruction and sends the first display backlight starting instruction 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 outputs the display content of the previous application to the first display after the first controller sends the backlight turning-on instruction of the first display, so as to present a "backlight turning-on-back" effect, thereby avoiding the situation that the first display is preferentially turned on but the display content of the previous application is not displayed in the first display at this time, and avoiding the blank display from being seen by the user.

As can be seen, the display device provided in the embodiment of the present invention is suitable for outputting to the second display through the HDMI interface of the current first controller, and returning to the scene of the application to be displayed on the first display in the first controller. In this scenario, when the dual-system camera switching control method is executed, the first controller receives an exit event broadcast generated after the return of the specified application to acquire information of the previous application. And when the second controller judges that the application type of the prior application is the application needing to be displayed in the first display according to the information of the prior application, generating a second HDMI switching identifier and sending the second HDMI switching identifier to the first controller. And after receiving the second HDMI switching identifier, the first controller detects whether the camera is in an occupied state, and generates a second switching instruction when the camera is not in the occupied state so as to switch the connection of the camera from the first controller to the second controller. Therefore, after the display equipment exits the designated application, when the display content calling the prior application is judged to be displayed on the first display, the camera can be coordinated and switched between the two systems.

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

at present, the large screen of the television displays video playing (such as playing video by a media center), and the 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 the first controller inquires that the last application (the previous application) is the homepage of the system A according to an application starting process list stored in the first development and encapsulation module after receiving the SILO _ BACK _ EVENT, and sends the name information of the application package to the second controller. And after receiving the application packet name, the second controller judges that the previous application does not need to be displayed in the second display according to the application packet name, and then generates a second HDMI switching identifier for identifying that the HDMI Switch module in the first controller needs to be switched to a small screen.

Then, the second controller sends the generated second HDMI switch identifier to the first controller through the data path, and meanwhile, the second controller queries the last application in the system N as the media center. After receiving the second HDMI switching identifier, the first controller determines that camera switching is required, the current Top Activity of the system A is ended first, then the system automatically pulls up the previous application (system A homepage), then whether the second HDMI switching identifier is the same as the current HDMI output identifier is judged, if not, the HDMI output interface is switched to the HDMI connected with the small screen according to the second HDMI switching identifier so as to display the system A homepage (previous application) on the small screen (first display), and then the first controller informs the second controller to turn on the small screen backlight.

The first controller calls a camera service to detect whether the camera is occupied, namely whether an application occupies the camera is judged according to the camera application list and the camera attribute, if the attribute value is control, it is determined that no application occupies the camera, then a second switching instruction is generated, and the camera switching module is controlled to switch the camera to be connected with the second controller. At the same time, the second controller also ends the Top availability of the current system N, returns to the previous application (media center), and displays the media center on a large screen (second display). Therefore, after the appointed application exits, when the display content for calling the prior application is judged to be displayed on the first display, the camera switching module is controlled to switch the connection between the camera and the first controller to the second controller.

It can be seen that according to the foregoing embodiments, whether the first controller needs to switch the camera is determined according to whether the first controller receives the HDMI switch identifier sent by the second controller, for example, if the first controller receives the first HDMI switch identifier, it indicates that the application in the first controller needs to use the camera. At this time, the camera switching module is controlled to switch the camera from the connection with the second controller to the connection with the first controller. If the first controller receives the second HDMI switching identifier, the fact that the camera is not needed by the application in the first controller is shown. At this time, the camera switching module is controlled to switch the camera from being connected with the first controller to being connected with the second controller. Therefore, the display device provided by the embodiment of the invention can realize timely switching of the camera following the started application, so as to ensure that the application can call the camera in time.

As can be seen from the foregoing technical solutions, in the display device provided in the embodiment of the present invention, when the second controller determines that the designated application is the first application and needs to be displayed on the second display, the second controller generates the first HDMI switching identifier and sends the first HDMI switching identifier to the first controller; the first controller generates a first switching instruction after receiving the first HDMI switching identifier and sends the first switching instruction to the camera switching module so as to switch the connection of the camera from the second controller to the first controller. After the appointed application exits, the first controller acquires information of a previous application and sends the information to the second controller, and when the second controller judges that the previous application is the first application and needs to be displayed on the first display, the second controller generates a second HDMI switching identifier and sends the second HDMI switching identifier to the first controller; and the first controller generates a second switching instruction after receiving the second HDMI switching identifier and sends the second switching instruction to the camera switching module so as to switch the connection of the camera back to the second controller. Therefore, according to the display device provided by the embodiment of the invention, the first controller controls the camera switching module according to whether the HDMI switching identifier is received, so that the camera is switched in real time along with the started application, the application on the dual systems can flexibly call the camera, and the camera can be further ensured to be coordinately switched between the two systems.

Fig. 12 is a first flowchart illustrating a dual system camera switching control method according to an exemplary embodiment. Referring to fig. 12, the present application further provides a dual-system camera switching control method, applied to a second controller, including the following steps:

s11, receiving an application starting instruction for starting the specified application;

s12, responding to the application starting instruction, judging the application type of the specified application, wherein the application type is used for representing whether the specified application is a first application or a second application, and whether the specified application is an application needing to be displayed on a first display or an application needing to be displayed on a second display;

Fig. 14 is a second flowchart illustrating a dual system camera switching control method according to an exemplary embodiment. Referring to fig. 14, the present application further provides a dual-system camera switching control method, applied to a first controller, including the following steps:

s21, receiving an application starting instruction which is sent by the second controller and carries a first HDMI switching identifier;

s22, responding to an application starting instruction carrying a first HDMI switching identifier, and generating a first switching instruction;

s23, sending the first switching instruction to the camera switching module, wherein the camera switching module is used for responding to the first switching instruction to switch the connection of the camera from the second controller to the first controller;

s24, detecting whether the camera connected with the first controller is in a to-be-called state or not according to a preset detection rule;

s25, if the camera is in a to-be-called state, the specified application is connected with the camera, and the display content of the specified application is displayed on a second display corresponding to the first HDMI switching identifier.

Fig. 17 is a flowchart illustrating a third method for controlling switching of a dual system camera according to an exemplary embodiment. Referring to fig. 17, the present application further provides a dual-system camera switching control method, applied to a first controller, including the following steps:

s31, receiving exit event broadcast generated when the appointed application responds to an application return instruction, wherein the application return instruction is an instruction generated when the appointed application returns to a previous application;

s32, responding to the quit event broadcast, acquiring information of a prior application, and sending the information of the prior application to a second controller;

s33, receiving a second HDMI switching identifier generated after the second controller judges the application type of the previous application according to the information of the previous application;

s34, acquiring information of a camera connected with the first controller based on the second HDMI switching identifier, and detecting whether the camera is in an occupied state;

s35, generating a second switching instruction when the camera is not in an occupied state, and sending the second switching instruction to the camera switching module, wherein the camera switching module is used for responding to the second switching instruction to switch the connection of the camera from the first controller to the second controller.

Fig. 19 is a fourth flowchart illustrating a dual system camera switching control method according to an exemplary embodiment. Referring to fig. 19, the present application further provides a dual-system camera switching control method, applied to a second controller, including the following steps:

s41, receiving information of a previous application sent by the first controller, wherein the previous application is the last application displayed before the specified application is displayed in the first controller;

s42, judging the application type of the prior application based on the information of the prior application, wherein the application type is used for representing whether the prior application is a first application or a second application and whether the prior application is an application needing to be displayed on a first display or an application needing to be displayed on a second display;

and S43, when the previous application is judged to be the first application and needs to be displayed on the first display, generating a corresponding second HDMI switching identifier, and sending the second HDMI switching identifier to the first controller, so that the first controller switches the camera based on the second HDMI switching identifier.

In a specific implementation manner, 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 dual-system camera switching control method 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 as software plus a 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 in the various embodiments in this specification may be referred to each other. Especially, for the embodiment of the dual-system camera switching control method, since it is basically similar to the embodiment of the display device, the description is relatively 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 camera configured to acquire environmental image data;

2. The display device of claim 1, wherein the application types include application source and presentation requirements; and the second controller is further configured to:

3. The display device according to claim 1, wherein the preset detection rule comprises a preset detection duration; and the first controller is further configured to:

4. The display device according to claim 1, wherein the preset detection rule includes a preset detection time and a preset detection number; and the first controller is further configured to:

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

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

7. The display device of claim 6, wherein the data interface comprises an HDMI interface; and the second controller is further configured to:

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

9. A display device, comprising:

a camera configured to acquire environmental image data;

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

11. The display device of claim 10, wherein the first controller is further configured to:

acquiring a current attribute value of the camera attribute;

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

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

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

15. A dual-system camera switching control method is applied to a second controller and is characterized by comprising the following steps:

16. A dual-system camera switching control method is applied to a first controller and is characterized by comprising the following steps:

17. A dual-system camera switching control method is applied to a second controller and is characterized by comprising the following steps:

18. A dual-system camera switching control method is applied to a first controller and is characterized by comprising the following steps: