CN111526415A

CN111526415A - Double-screen display equipment and HDMI switching method thereof

Info

Publication number: CN111526415A
Application number: CN202010293529.2A
Authority: CN
Inventors: 何营昊; 徐善亮; 鲁好锦
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-08-11
Anticipated expiration: 2040-04-15
Also published as: CN111526415B

Abstract

The application discloses a double-screen display device and an HDMI switching method thereof.A first controller receives an application starting instruction carrying an application type of a specified application, and determines a target HDMI output interface and a target display required by the specified application based on the application type; acquiring resolution identification data of a target display, and determining a first display resolution if the resolution identification data is null; determining a second display resolution if the resolution identification data is a non-null value; and according to the first display resolution or the second display resolution, outputting the display content of the specified application to the target display through the target HDMI output interface for displaying. Therefore, when the HDMI is switched, the double-screen display device provided by the invention can output corresponding display contents according to the resolution requirements of the corresponding display, and the display contents of the appointed application can meet the resolution requirements of the corresponding display when displayed on different displays, namely, the double-screen display device can adapt to various resolution requirements, and the phenomenon of screen splash is avoided.

Description

Double-screen display equipment and HDMI switching method thereof

Technical Field

The application relates to the technical field of communication, in particular to a double-screen display device and a switching method of an HDMI (high-definition multimedia interface) of the double-screen display device.

Background

With the continuous development of communication technology, terminal devices such as computers, smart phones and display devices have become more and more popular. In addition, as the demand of the user on the application experience is higher and higher, the requirements on various performance indexes of the operating system of the terminal equipment are also higher, and in order to provide rich display contents, it is possible to set a double screen on the Android terminal equipment.

The dual-screen display device comprises two controllers and two displays. The first controller is in communication connection with the first display (small screen), the second controller is in communication connection with the second display (large screen), and the first controller is in communication connection with the second controller through the HDMI output interface. The application content in the first controller can be displayed on the first display or the second display. When the application content in the first controller is switched between the first display and the second display, the switching is implemented by switching the output of the HDMI output interface of the first controller to the first display or to the second display.

Therefore, in the switching process of the HDMI output interface, the HDMI output interface serves as an output end and corresponds to the two receiving ends, namely the first display and the second display. Since the two displays have different display resolutions, the HDMI output interface requires different output resolutions, and thus when the HDMI output interface is switched to output, how to ensure that the display content of the application is displayed on the different displays can meet the resolution requirements of the corresponding displays becomes a technical problem to be urgently solved by those skilled in the art.

Disclosure of Invention

The application provides a double-screen display device and a switching method of an HDMI thereof, which are used for solving the problem that how to ensure that the resolution requirements of corresponding displays can be met when the display content of an application is displayed on different displays.

In a first aspect, the present application provides a dual-screen display device, including:

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;

the second controller is internally provided with an HDMI (high-definition multimedia interface) which is used for being connected with a second HDMI output interface to realize the communication connection between the second controller and the first controller;

the first controller is internally provided with an HDMI switching module, the HDMI switching module is used for realizing switching between a first HDMI output interface and a second HDMI output interface, the first HDMI output interface is used for being connected with a first display, and the second HDMI output interface is used for being connected with a second display;

the first controller is configured to receive an application starting instruction for starting a specified application, wherein the application starting instruction carries an application type of the specified application, and the application type is used for representing whether the specified application is a first application or a second application and is required to be displayed on a first display or a second display;

determining a target HDMI output interface and a target display required by the specified application based on the application type in response to the application starting instruction;

acquiring resolution identification data of the target display, wherein the resolution identification data is used for identifying the optimal resolution which can be supported by the target display;

if the resolution identification data is a null value, determining a first display resolution, and outputting the display content of the specified application to a target display through the target HDMI output interface for display according to the first display resolution;

and if the resolution identification data is a non-null value, determining a second display resolution, and outputting the display content of the specified application to a target display through the target HDMI output interface for displaying according to the second display resolution.

Further, the first controller is further configured to:

acquiring the connection state of the HDMI switching module, wherein the connection state of the HDMI switching module is used for representing whether the first HDMI output interface is connected with a first display or the second HDMI output interface is connected with a second display;

determining a target display required by the specified application based on the application type in response to the application starting instruction;

and if the connection state of the HDMI switching module is that the first HDMI output interface is connected with the first display and the target display is the first display, taking the first HDMI output interface connected with the first display as the target HDMI output interface.

Further, the first controller is further configured to:

if the connection state of the HDMI switching module is that the second HDMI output interface is connected with the second display, and when the target display is the first display, the HDMI switching module is called to switch the second HDMI output interface connected with the second display to the first HDMI output interface corresponding to the first display, and the first HDMI output interface is used as the target HDMI output interface.

Further, the first controller is further configured to:

when the target display is a first display and the target HDMI output interface is a first HDMI output interface, acquiring resolution identification data of the first display;

if the resolution identification data of the first display is null, acquiring the default display resolution of the first display;

taking the default display resolution as a first display resolution;

and according to the first display resolution, outputting the display content of the specified application to a first display through the first HDMI output interface for displaying.

Further, the first controller is further configured to:

if the connection state of the HDMI switching module is that the first HDMI output interface is connected with the first display, and when the target display is the second display, the HDMI switching module is called to switch the first HDMI output interface connected with the first display to the second HDMI output interface corresponding to the second display, and the second HDMI output interface is used as the target HDMI output interface.

Further, the first controller is further configured to:

generating a hot plug control instruction and sending the hot plug control instruction to a second controller, wherein the hot plug control instruction is used for enabling the second controller to execute hot plug operation on the HDMI;

receiving an action execution finishing instruction returned after the second controller responds to the hot plug control instruction to perform hot plug operation on the HDMI;

and responding to the action execution finishing instruction, and acquiring resolution identification data of the target display.

Further, the second controller is further configured to:

receiving a hot plug control instruction sent by the first controller;

responding to the hot plug control instruction, and performing hot plug operation on the HDMI in the second controller;

and after the hot plug operation is finished, generating an action execution finishing instruction and sending the action execution finishing instruction to the first controller.

Further, the first controller is further configured to:

when the target display is a second display and the target HDMI output interface is a second HDMI output interface, responding to the action execution finishing instruction, and acquiring resolution identification data of the second display;

if the resolution identification data of the second display is a non-null value, taking the resolution corresponding to the non-null value as a second display resolution;

and according to the second display resolution, outputting the display content of the specified application to a second display through the second HDMI output interface for displaying.

Further, the second controller is further configured to:

when responding to the hot plug control instruction and performing hot plug operation on the HDMI in the second controller, acquiring a transition picture;

and displaying the transition picture in a second display.

In a second aspect, the present application further provides a method for switching an HDMI of a dual-screen display device, including the following steps:

receiving an application starting instruction for starting a specified application, wherein the application starting instruction carries an application type of the specified application, and the application type is used for representing whether the specified application is a first application or a second application and needs to be displayed on a first display or a second display;

In a third 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 method for switching the HDMI for a dual-screen display device provided in the present application.

As can be seen from the foregoing technical solutions, in the dual-screen display device and the HDMI switching method thereof provided in the embodiments of the present invention, the first controller receives an application start instruction carrying an application type of a specified application, and determines a target HDMI output interface and a target display required by the specified application based on the application type; acquiring resolution identification data of a target display, determining a first display resolution if the resolution identification data is null, and determining a second display resolution if the resolution identification data is non-null; and according to the first display resolution or the second display resolution, outputting the display content of the specified application to the target display through the target HDMI output interface for displaying. Therefore, when the HDMI is switched, the double-screen display device provided by the invention can output corresponding display contents according to the display resolution requirements of the corresponding display, so that the display contents of the specified application can meet the resolution requirements of the corresponding display when displayed on different displays, namely, the double-screen display device can adapt to various resolution requirements, and the phenomenon of screen splash is avoided.

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

fig. 11 is a first flowchart illustrating a switching method of the HDMI of the dual display device according to the exemplary embodiment;

FIG. 12 is a flow chart illustrating a method of displaying on a target display at a first display resolution in accordance with an illustrative embodiment;

fig. 13 is a diagram exemplarily illustrating a first data flow of a switching method of the HDMI for the dual display device according to the exemplary embodiment;

fig. 14 is a second flowchart illustrating a switching method of the HDMI of the dual display device according to the exemplary embodiment;

FIG. 15 is a flow chart illustrating a method of displaying on a target display at a second display resolution in accordance with an illustrative embodiment;

fig. 16 is a diagram exemplarily illustrating a second data flow of the switching method of the HDMI for the dual display device according to the exemplary embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

The present application is mainly directed to a sound and picture synchronization process of a display device having a dual-system and dual-display structure, that is, a display device having a first controller (a first hardware system), a second controller (a second hardware system), a first display, and a second display, and the following first describes details of structures, functions, implementation manners, and the like of the display device having the dual-system hardware structure.

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 according to an exemplary embodiment. 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 a dual hardware control system is adopted between the first display 201 and the second display 202.

The first display 201 and the second display 202 may be used to display different display screens. 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; on the other hand, the display device can be a display system consisting of an intelligent television or a display and a set-top box. The specific display device type, size, resolution, etc. are not limiting, and those skilled in the art will appreciate that the display device 200 may be modified in performance 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. Examples include a web tv, a smart tv, an Internet Protocol Tv (IPTV), and the like. 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 interface of the display device or other display devices, so as to implement interactive chat between users. Specifically, the picture shot by the camera can be displayed on the display device in a full screen mode, a half screen mode or any optional 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 schematically showing the configuration of the control apparatus 100 according to the exemplary embodiment. 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 an output interface. 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 diagram illustrating a hardware configuration of a hardware system in the display apparatus 200 according to an exemplary embodiment. 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 supply board 4, a first rear case 51, a second rear case 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.

Among them, 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.

Wherein 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 35, the second TCON board 34b, the key board 36, and other parts of the display device 200, thereby achieving an aesthetic effect.

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

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

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

Fig. 4 is a schematic diagram illustrating a connection relationship between a power board and a load, and as shown IN fig. 4, the power board 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 driving board 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.

A block diagram of the hardware architecture of the display device 200 according to fig. 3 is exemplarily shown in fig. 5. As shown in fig. 5, the hardware system of the display apparatus 200 may include 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 25, 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 communication protocol module 232, a wired ethernet communication protocol 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 254, a Red Green Blue (RGB) terminal (not shown in the figure), 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 RAM 213, a random access memory ROM 214, a graphic processor 216, a CPU processor 212, a communication interface 218, 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 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-unit 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.

First display 280 for receiving image signals input from video processor 260-1 for displaying video content and images and menu manipulation interface first display 280 includes a display component for presenting a picture and a driving component for driving the display of the image. The video content may be displayed from the video in the broadcast signal received by the tuner/demodulator 220, or 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 module connected to the second controller 310 may include a communicator 330, a detector 340, a memory 390, and a second display 380 (i.e., the second display 202 in fig. 1). A user input interface, a video processor, an audio processor, a display, 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 via a 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 plural and may include a first interface 318-1 to 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 is a diagram schematically illustrating a functional configuration of a display device according to an exemplary embodiment.

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 is a block diagram illustrating a configuration of a software system in the display device 200 according to the exemplary embodiment.

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, while implemented in the application 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.

Fig. 8 is a block diagram illustrating a structure of an application layer of a display device according to an exemplary embodiment. As shown in fig. 8, the application layer of the display device contains 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.

A schematic diagram of a user interface in a display device 200 according to an exemplary embodiment is illustrated in fig. 9. As shown in fig. 9, the user interface includes a first diagram display area 2011 and a second diagram display area 2021. The first diagram display area 2011 and the second diagram display area 2021 have substantially the same function, and only the first diagram 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, or that the items in the view display 201 are scalable in size or proportion on the screen.

"item" refers to a visual object displayed in a view display area of a user interface in the display device 200 to represent corresponding content, such as icons, thumbnails, video clips, 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 structure of a dual screen display device according to an exemplary embodiment. Referring to fig. 10, the dual-screen display device provided in the embodiment of the present invention includes two main controllers, namely, a second controller 310 and a first controller 210, where each main controller runs an independent Android system, that is, a system N (a second hardware system) is configured in the second controller, a system a (a first hardware system) is configured in the first controller, the system N is a main system, and the system a is a slave system.

To enable the capabilities of both systems to be presented to the user, the dual screen display device is configured with dual displays. The dual display includes a first display (small screen) 280 and a second display (large screen) 380, the second display 380 (i.e. the first display 201 in fig. 1) is connected to the system N for displaying the display content of each application configured in the system N, and 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 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. Specifically, an HDMI interface (HDMI4) is configured in the system N (second controller), and switching between a first HDMI output interface (HDMI1) for connecting with the first display and a second HDMI output interface (HDMI2) for connecting with the HDMI interface in the system N is configured in the system a (first controller), so that the second HDMI output interface is connected with the second display. The two systems can be connected through a data path to realize data transmission between the two systems.

The two displays are respectively driven by the system N and the system A, and in a normal state, the output content of the system N is displayed on a large screen, namely the functions used by a normal user, such as functions of large-screen homepage, live television, video application, karaoke and the like; the small screen displays the output content of the system A, namely a small screen homepage, a voice assistant and the like; at this time, the system a is displayed on the small screen through the HDMI1 terminal and the relay chip.

An HDMI Switch module is configured in the first controller 210, and the HDMI Switch module is configured to Switch an HDMI output interface in the first controller, that is, when the HDMI Switch module switches an HDMI in the first controller to the first HDMI output interface, the connection between the first HDMI output interface and a small screen (a first display) is realized, so that the display content of the application started is displayed on the small screen. When the HDMI Switch module switches the HDMI in the first controller to the second HDMI output interface, the second HDMI output interface is connected with a large screen (a second display), so that the display content of the started application is displayed on the large screen.

When the started application is the first application and needs to be displayed on the first display, the HDMI Switch module switches the HDMI in the first controller to the first HDMI output interface (HDMI1), and the first controller is connected with the switching chip through the first HDMI output interface. The switching chip is connected to the first display through the screen line, and the switching chip converts the content transmitted by the first HDMI output interface into a signal and outputs the signal to the first display through the screen line, so that the display content of the application is started to be displayed on the first display.

When the started application is the first application and needs to be displayed on the second display, namely, the application image of the small screen is output to the large screen for display, and is also output to the large screen through the HDMI. The HDMI Switch module switches the HDMI in the first controller to the second HDMI output interface (HDMI2), and the second HDMI output interface (HDMI2) is connected to the HDMI interface (HDMI4) in the second controller, thereby realizing the connection between the first controller and the second controller. The second controller is connected with the second display through the screen line, so that the display content of the application started in the first controller is output to the second display through the HDMI2, the HDMI4 and the screen line in sequence for display. When the application exits, the HDMI Switch module switches the second HDMI output interface back to the first HDMI output interface, and outputs the display content of the application to the first display through the first HDMI output interface for display.

For example, since the camera is on the system a, when the user uses the social function, the screen on the social application is output to the large screen for display, that is, when the user starts the social application such as a magic mirror and a video call, the system a switches the HDMI output interface to the HDMI2 terminal, and the HDMI2 terminal is connected to the HDMI4 terminal of the system N, so that the output of the system a is displayed on the large screen. When the social application quits, the system A switches the HDMI output interface back to the HDMI1 terminal, at the moment, the small screen displays the small screen homepage, and the large screen displays according to the operation of the user.

Therefore, when the dual-screen display device provided by the embodiment of the invention realizes the switching display of the large screen and the small screen, the core is the switching of the two HDMI output interfaces in the first controller. The HDMI output interface in the first controller is used as an output end (TX), and one of the two HDMI output interfaces is communicated to a corresponding display, so that two receiving ends (RX) are arranged in the double-screen display device and are respectively a first display and a second display. Then, when the dual-screen display device is HDMI-switched, there is a case where one TX corresponds to two different RX. The output (TX) of the HDMI is the same and is not interrupted, and is a continuous output, and only switching to different terminals realizes output to different displays.

The HDMI output interface requires different output resolution due to different display resolution requirements of the two displays (the large screen is 4k display, and the small screen is 1080p display). In order to switch the HDMI interface to realize the switching display of the large screen and the small screen of the dual-screen display device, corresponding display content needs to be output according to the display resolution requirement of the corresponding display to be displayed, so that the phenomenon of screen splash is avoided, and the display is adapted to the display of various resolution requirements.

The display resolution requirement of each display is identified by resolution identification data (edid), and the optimal resolution supported by the corresponding display can be judged according to the resolution identification data. However, since the small screen does not support reading of the edid, and the large screen supports reading of the edid, when the HDMI output interface is switched to output, a corresponding HDMI switching method needs to be executed for different situations of the edid reading, so as to ensure that the resolution requirements of the corresponding display can be met when the applied display content is displayed on different displays.

Therefore, according to the dual-screen display device provided by the embodiment of the invention, when the HDMI is switched, different switching strategies are executed according to the edid reading conditions of different displays, so that the correct timing and colorspace are output in the switching process, that is, the resolution requirement is met, and no screen flashing or screen splash phenomenon occurs in the HDMI switching process and the switched display process, so that the user experience is improved.

Fig. 11 is a first flowchart illustrating a switching method of the HDMI of the dual display device according to the exemplary embodiment. In a dual-screen display device provided by an embodiment of the present invention, when HDMI is switched, for a scenario where one TX corresponds to two different RX, a first controller is configured to execute a method for switching HDMI of a dual-screen display device shown in fig. 11, where the method includes:

and S1, receiving an application starting instruction for starting the specified application, wherein the application starting instruction carries the application type of the specified application, and the application type is used for representing whether the specified application is a first application or a second application and needs to be displayed on the first display or the second display.

The second display is a main display and is used for displaying an operation interface, and application icons installed in the first controller and the second controller are displayed in the operation interface. A user selects a designated application on an operation interface through a remote controller to start, an application starting instruction is generated and sent to a first controller, and the first controller controls the starting of the designated application according to the application starting instruction.

After the designated application is triggered to start, it needs to be determined on which display the display content of the designated application needs to be displayed, so as to determine whether the first controller needs to execute the HDMI switching function, 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.

When the designated application is started, the application starting instruction carries the package name of the designated application, and the package name can determine the name of the designated 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. 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.

For example, the package name format may be "specify application name, controller, show display," which may visually determine the application type of the specified application, including application source and show requirements.

And S2, in response to the application starting instruction, determining a target HDMI output interface and a target display required by the specified application based on the application type.

After receiving the application starting instruction, the first controller obtains the application type carried in the application starting instruction, and can determine the application source and the display requirement of the specified application according to the application type of the specified application, namely a target display and a controller which are required to display content. Judging whether to switch the HDMI interface according to the characteristic whether the controller of the appointed application is consistent with the controller connected with the target display, namely determining which HDMI output interface is required by the output presentation of the display content of the appointed application.

The target display may be the first display or the second display, and the target HDMI output interface may be the first HDMI output interface or the second HDMI output interface. When judging whether the HDMI output interfaces in the first controller need to be switched, the switching method can be realized by judging whether a target display corresponding to the display requirement of the specified application is consistent with a current display currently connected with the first controller, and therefore, the connection state of the HDMI switching module needs to be acquired to determine the connection state of each HDMI output interface in the first controller.

In one possible embodiment, when determining the target HDMI output interface and the target display, the first controller is further configured to:

step 211, obtaining a connection state of the HDMI switching module, where the connection state of the HDMI switching module is used to represent whether the first HDMI output interface is being connected to the first display or the second HDMI output interface is being connected to the second display.

When the double-system application is coordinately displayed on the double-display, the connection state of the double-display and the double-controller in the current double-screen display device needs to be determined first, that is, the connection state of the HDMI switching module in the first controller needs to be determined first.

The HDMI switching module is used for realizing the alternative calling of two HDMI output interfaces, namely the HDMI switching module can call the first HDMI output interface to be connected with the first display, or call the second HDMI output interface to be connected with the second display.

Therefore, the first controller obtains the connection state of the HDMI switching module, that is, the current connection state of the two displays and the two controllers can be determined. That is to say, if the HDMI switching module is currently calling the first HDMI output interface to connect with the first display, at this time, the first display and the first controller are in a connected state, and the second display and the second controller are in a connected state. If the HDMI switching module calls the second HDMI output interface to be connected with the second display currently, at the moment, the second display and the first controller are in a connection state, and the first display is turned off.

Step 212, in response to the application start instruction, determines the target display required by the specified application based on the application type.

And the first controller determines the display requirement of the specified application according to the application type carried in the application starting instruction, namely the target display needing to display the display content.

Step 213, if the connection state of the HDMI switching module is that the first HDMI output interface is being connected to the first display and the target display is the first display, taking the first HDMI output interface connected to the first display as the target HDMI output interface.

When the designated application is the first application and the target display corresponding to the display requirement is the first display, if the connection state of the HDMI switching module is that the first HDMI output interface is being connected with the first display, that is, when the target display corresponding to the display requirement of the designated application is consistent with the current display corresponding to the connection state of the HDMI switching module in the first controller, the HDMI switching module in the first controller does not need to be controlled to switch, that is, the first HDMI output interface is connected with the first display, and at this time, the target HDMI output interface is the first HDMI output interface.

Therefore, when the output of the first controller is currently output to a small screen (first display) and a specific application which needs to be displayed on the small screen is about to be started, switching of the HDMI output interface is not needed, the target display required by the first controller for displaying the display content of the specific application is the first display, and the target HDMI output interface is the first HDMI output interface. When the dual-screen display device is started up, the HDMI signal of the first controller is connected to the small screen (the first display) through the first HDMI output interface by default, and if the specified application to be started is the first application and needs to be displayed on the small screen, the HDMI signal also conforms to the current situation that the first controller outputs to the small screen and the specified application needs to be displayed on the small screen is to be started.

In another possible embodiment, in determining the target HDMI output interface and the target display, the first controller is further configured to perform the following method steps:

step 221, obtaining a connection state of the HDMI switching module, where the connection state of the HDMI switching module is used to represent whether the first HDMI output interface is being connected to the first display or the second HDMI output interface is being connected to the second display.

Step 222, in response to the application launch instruction, determines the target display required by the specified application based on the application type.

In this embodiment, the contents of step 221 and step 222 may refer to the contents of step 211 and step 212 provided in the above embodiments, and are not described herein again.

Step 223, if the connection state of the HDMI switching module is that the second HDMI output interface is being connected to the second display and the target display is the first display, calling the HDMI switching module to switch the second HDMI output interface connected to the second display to the first HDMI output interface corresponding to the first display, and using the first HDMI output interface as the target HDMI output interface.

When the designated application is the first application and the target display corresponding to the display requirement is the first display, if the connection state of the HDMI switching module is that the second HDMI output interface is being connected with the second display, that is, when the target display corresponding to the display requirement of the designated application is inconsistent with the current display corresponding to the connection state of the HDMI switching module in the first controller, the HDMI switching module in the first controller needs to be controlled to switch.

At this moment, the first controller calls the HDMI switching module to switch a second HDMI output interface connected with the second display to a first HDMI output interface corresponding to the first display, so that the first HDMI output interface is connected with the first display, the display content of the specified application is output to the first display through the first HDMI output interface for display, and at this moment, the target HDMI output interface is the first HDMI output interface.

Therefore, when the output of the first controller is currently outputted to the large screen (second display) and a specific application that needs to be displayed on the small screen (first display) is about to be started, that is, when the content of the specific application is displayed by switching from the large screen to the small screen, the switching of the HDMI output interface is required, that is, the second HDMI output interface is switched back to the first HDMI output interface. At this time, the target display required by the first controller to display the display content of the specified application is the first display, and the target HDMI output interface is the first HDMI output interface.

And S3, acquiring resolution identification data of the target display, wherein the resolution identification data is used for identifying the optimal resolution which can be supported by the target display.

And after the target display corresponding to the display requirement of the specified application is determined, the first controller establishes connection between the target display and the target HDMI output interface, and outputs the display content of the specified application after the HDMI connection. When the display content is output to the target display through the target HDMI output interface, the display content of the designated application with the corresponding resolution needs to be output according to the resolution requirement of the target display, so that the display content of the designated application can be displayed in the target display with the optimal resolution, and the phenomenon of screen splash is avoided.

For this reason, in order to ensure that the first controller can output correct display content after switching the HDMI, the first controller is required to acquire resolution identification data (edid) of the target display. The resolution identification data can judge the optimal resolution supported by the current display, so that the display content of the specified application can be displayed in the target display in a full screen mode under the condition that the color and the image format are not changed at the optimal resolution supported by the target display.

And S4, if the resolution identification data is null, determining the first display resolution, and outputting the display content of the specified application to the target display through the target HDMI output interface for displaying according to the first display resolution.

Since the first display does not support reading of the edid and the second display supports reading of the edid, when the first controller obtains the edid of the target display, there may be a case where the received edid is a null value and a case where the received edid is an optimal resolution value.

Therefore, for the reading conditions of different edids, the dual-screen display device provided by the embodiment of the invention can execute different HDMI switching strategies, so that after HDMI is switched, the display content of the designated application can be displayed in the target display at the optimal resolution supported by the target display, and the phenomenon of screen splash is avoided.

A flow chart of a method of displaying at a target display at a first display resolution in accordance with an exemplary embodiment is illustrated in fig. 12. In one possible embodiment, referring to fig. 12, in the case that the resolution identification data read by the first controller is null, the first controller is further configured to perform the following method steps:

and S41, when the target display is the first display and the target HDMI output interface is the first HDMI output interface, acquiring resolution identification data of the first display.

And S42, if the resolution identification data of the first display is null, acquiring the default display resolution of the first display.

S43, the default display resolution is set as the first display resolution.

And S44, outputting the display content of the appointed application to the first display through the first HDMI output interface according to the first display resolution and displaying the display content.

If the edid is null, the target display is the first display. Therefore, in this embodiment, when the target display is the first display and the target HDMI output interface is the first HDMI output interface, the resolution identification data of the first display is obtained. At this time, the resolution identification data of the first display is null.

Since the display resolution of the first display is a fixed value of 1080P, the first controller can retrieve the default display resolution of the first display after acquiring the edid null value, where the default display resolution is the optimal resolution that the first display can support, for example, 1080P.

When the display content of the designated application is displayed, the default display resolution is used as the first display resolution, so that the resolution of the display content of the designated application output by the first HDMI output interface is in accordance with the first display resolution, and the display content of the designated application is displayed in the first display, namely the display content of the designated application is displayed in the first display at the resolution of 1080P.

Fig. 13 is a diagram exemplarily illustrating a first data flow of a switching method of the HDMI for the dual display device according to an exemplary embodiment.

For example, referring to fig. 13, in a scenario where the first controller outputs to the small screen (first display): when the appointed application is started or the power is started, the first controller calls the HDMI switching module to connect the first HDMI output interface (the HDMI1 terminal) with the first display. The first controller reads resolution identification data (edid) of the first display through the first HDMI output interface, and the first display returns a null value. And the first controller judges that no edid exists at the moment, acquires the default display resolution of the first display, forcibly outputs the default display resolution, namely outputs 1080P resolution, and enables the display content of the specified application to be output to the first display for display through the first HDMI output interface at the 1080P resolution.

It can be seen that in the case that an application in the first controller needs to be displayed in the first display, since the first display does not support the acquisition of the edid, the resolution requirement for the specified application when displayed in the first display can be achieved by calling the default display resolution of the first display.

In another possible embodiment, in the case that the resolution identification data read by the first controller is a non-null value, if edid is a non-null value, the target display is indicated as the second display. And since the first controller defaults to the connected small screen, at this time, there is a scene of switching display from the small screen to the large screen, when determining the target display and the target HDMI output interface, the first controller is further configured to perform the following method steps:

step 231, obtaining a connection state of the HDMI switching module, where the connection state of the HDMI switching module is used to represent whether the first HDMI output interface is being connected to the first display or the second HDMI output interface is being connected to the second display.

Step 232, in response to the application start instruction, determines the target display required by the specified application based on the application type.

In this embodiment, the contents of step 231 and step 232 may refer to the contents of step 211 and step 212 provided in the above embodiments, and are not described herein again.

Step 233, if the connection state of the HDMI switching module is that the first HDMI output interface is being connected to the first display and the target display is the second display, the HDMI switching module is invoked to switch the first HDMI output interface connected to the first display to the second HDMI output interface corresponding to the second display, and the second HDMI output interface is used as the target HDMI output interface.

When the designated application is the first application and the target display corresponding to the display requirement is the second display, if the connection state of the HDMI switching module is that the first HDMI output interface is being connected with the first display, that is, when the target display corresponding to the display requirement of the designated application is inconsistent with the current display corresponding to the connection state of the HDMI switching module in the first controller, the HDMI switching module in the first controller needs to be controlled to switch.

At this moment, the first controller calls the HDMI switching module to switch the first HDMI output interface connected with the first display to the second HDMI output interface corresponding to the second display, so that the second HDMI output interface is connected with the second display, the display content of the specified application is output to the second display through the second HDMI output interface for display, and at this moment, the target HDMI output interface is the second HDMI output interface.

Therefore, when the output of the current first controller is output to the small screen (first display) and a specific application which needs to be displayed on the large screen (second display) is about to be started, that is, when the content of the specific application is displayed by switching from the small screen to the large screen, switching of the HDMI output interface is required, that is, switching of the first HDMI output interface to the second HDMI output interface is required. At this time, the target display required by the first controller to display the display content of the specified application is the second display, and the target HDMI output interface is the second HDMI output interface.

When the HDMI output interface in the first controller performs a switching operation, the second controller needs to perform a hot-plug operation to replace the two sinks, that is, after the second controller performs the hot-plug operation, the current sink (the first display) can be replaced with another sink (the second display). After the second controller executes the hot plug operation, the first controller and the second controller can read the latest display data in real time again, and the display data comprises display resolution and the like.

Therefore, after the HDMI output interface of the first controller is switched to the second HDMI output interface, the second controller needs to perform a hot plug operation to establish the connection between the second HDMI output interface and the HDMI interface in the second controller.

Fig. 14 is a second flowchart illustrating a switching method of the HDMI of the dual display device according to the exemplary embodiment. Referring to fig. 14, the dual-screen display device according to the embodiment of the present invention, after performing HDMI interface switching and before acquiring resolution identification data of the target display in step S3, is further configured to perform the following method steps:

and S301, generating a hot plug control instruction and sending the hot plug control instruction to the second controller, wherein the hot plug control instruction is used for enabling the second controller to execute hot plug operation on the HDMI.

After the first controller determines the target display and the target HDMI output interface according to the application type carried in the application starting instruction, namely after the target display is determined to be the second display and the target HDMI output interface is determined to be the second HDMI output interface, the first controller informs the second controller to execute hot plug operation.

At the moment, the first controller generates a hot plug control instruction and sends the hot plug control instruction to the second controller, and the second controller executes hot plug operation according to the hot plug control instruction, so that the HDMI in the second controller is connected with the second HDMI output interface.

Specifically, the second controller, when performing a hot plug operation, is configured to perform the following method steps: receiving a hot plug control instruction sent by a first controller; responding to the hot plug control instruction, and performing hot plug operation on the HDMI in the second controller; and after the hot plug operation is finished, generating an action execution finishing instruction and sending the action execution finishing instruction to the first controller.

The hot plug operation is an operation that must be performed after the first controller calls the HDMI switch module to switch HDMI to the second HDMI output interface to ensure that the second HDMI output interface (HDMI2) is able to establish a connection with the HDMI interface (HDMI4) in the second controller.

And after the hot plug operation is finished, the second HDMI output interface can automatically acquire the display data of the first controller and the second controller, wherein the display data at the moment is the latest data of the two controllers. In the present embodiment, the acquired display data is the latest display resolution.

In order to facilitate the first controller to retrieve the latest display data in a timely manner, it is necessary to send an action completion instruction to the first controller after the second controller completes the hot plug operation.

And S302, receiving an action execution finishing instruction returned after the second controller responds to the hot plug control instruction to execute the hot plug operation on the HDMI.

And S303, responding to the action execution finishing instruction, and acquiring resolution identification data of the target display.

And the first controller receives an action execution finishing instruction sent by the second controller after the hot plug operation is executed, and immediately acquires the resolution identification data of the target display again, namely acquires the resolution identification data of the second display again.

The newly acquired resolution identification data can represent the latest optimal resolution supported by the second display, so that when the display content of the designated application is subsequently displayed, the latest and optimal resolution can be displayed in the second display to adapt to the display of different resolutions, and the phenomenon of screen blooming is avoided.

If the target display is the second display, the resolution identification data of the target display acquired by the first controller is a non-null value, and at this time, when the display content of the designated application is displayed, the display content can be output at the second display resolution, and the specific method is as follows:

and S5, if the resolution identification data is a non-null value, determining a second display resolution, and outputting the display content of the specified application to the target display through the target HDMI output interface for displaying according to the second display resolution.

Since the first display does not support reading of the edid and the second display supports reading of the edid, when the acquired resolution identification data is a non-null value, it is indicated that the currently acquired target display is the second display. In this case, the first controller outputs the display content of the specified application to the target display through the target HDMI output interface for display at the second display resolution.

A flow chart of a method of displaying at a target display at a second display resolution in accordance with an exemplary embodiment is illustrated in fig. 15. Referring to fig. 15, in the case where the resolution identification data read by the first controller is a non-null value, the first controller is further configured to:

and S51, when the target display is the second display and the target HDMI output interface is the second HDMI output interface, responding to the action execution finishing instruction, and acquiring resolution identification data of the second display.

And S52, if the resolution identification data of the second display is a non-null value, taking the resolution corresponding to the non-null value as the second display resolution.

And S53, outputting the display content of the appointed application to the second display through the second HDMI output interface according to the second display resolution and displaying the display content.

If the edid is not null, the target display is the second display. Therefore, in this embodiment, when the target display is the second display and the target HDMI output interface is the second HDMI output interface, the resolution identification data of the second display is obtained. At this time, the resolution identification data of the second display is a non-null value.

After the first controller obtains the edid of the non-null value, the edid at this time is the latest and optimal resolution of the second display, and therefore the first controller takes the actual detection resolution of the obtained resolution identification data of the second display as the second display resolution. For example, if the resolution of the second display is 4K resolution, i.e., 4096 × 2160 pixels, then 4K resolution is taken as the second display resolution.

And when the display content of the specified application is displayed, the actual detection resolution is taken as the second display resolution, so that the resolution of the display content of the specified application output by the second HDMI output interface conforms to the optimal second display resolution to be displayed in the second display, namely, the display content of the specified application is displayed in the second display at the optimal resolution of 4K.

When the second controller executes hot plug operation, namely, when the small screen is switched to the large screen for display, the blue screen problem of the second display is easily caused by the display time difference. Therefore, in order to avoid the phenomenon that the blue screen is watched by the user and influence user experience, the HDMI output interface is switched at the first controller, the second controller executes hot plug operation, and when the small screen is switched to the large screen for display, the second display can be shielded by using transition pictures.

Specifically, in the process of performing occlusion with transition pictures, the second controller is further configured to: when responding to the hot plug control instruction and performing hot plug operation on the HDMI in the second controller, acquiring a transition picture; and displaying the transition picture in a second display.

The second controller responds to the hot plug control instruction sent by the first controller, carries out hot plug operation on the HDMI, simultaneously obtains transition pictures prestored in the second controller, displays the transition pictures in the second display, and shields the content switching process of the second display, so that the phenomenon that a blue screen phenomenon caused by switching time difference is seen by a user when the small screen is switched to the large screen for display is avoided. Meanwhile, the transition picture can be shielded when the display content of the designated application is output to a large screen for display, so that the display content is prevented from being seen by a user when the display content is not displayed on the second display at the optimal resolution.

After the display content of the designated application is displayed on the second display at the optimal resolution, i.e., at the second display resolution, the second controller may cancel the display of the transition picture so that the display content of the designated application displayed at the optimal resolution in the second display is presented to the user.

For example, referring to fig. 16, in a scene where the first controller outputs to a large screen (second display): when the social application is started, the first controller calls the HDMI switching module to connect the second HDMI output interface with the second display. At this time, a transition picture is presented in the second display. The first controller sends a hot plug control command to the second controller, and informs the second controller to execute hot plug operation. The second controller performs a hot plug operation only for the HDMI interface (HDMI4) terminal. At this time, the second HDMI output interface re-reads the resolution identification data (edid) of the second controller, i.e., the edid of the second display, thereby performing an optimal output, i.e., an output at 4k resolution. The display content of the social application is output by the second HDMI output interface into the second display for display at 4k resolution (second display resolution). When the output of the display content of the social application is stable, the second controller removes the transition picture, and at the moment, the second display presents the display content of the social application.

It can be seen that, in the case that an application in the first controller needs to be displayed in the second display, the first controller cannot actively acquire the edid of the second display (target receiving end) because the output of the first controller is uninterrupted in the process of performing the HDMI switch. Therefore, the first controller needs to notify the second controller to perform a hot plug operation, so that the first controller can acquire the resolution identification data (edid) of the second display. And then, the display content of the designated application is output to the second display through the second HDMI output interface for displaying according to the resolution corresponding to the obtained edid, so that the resolution requirement of the second display can be met when the designated application is displayed to the second display.

As can be seen from the foregoing technical solutions, in the dual-screen display device provided in the embodiments of the present invention, the first controller receives an application start instruction carrying an application type of a specified application, and determines a target HDMI output interface and a target display required by the specified application based on the application type; acquiring resolution identification data of a target display, determining a first display resolution if the resolution identification data is null, and determining a second display resolution if the resolution identification data is non-null; and according to the first display resolution or the second display resolution, outputting the display content of the specified application to the target display through the target HDMI output interface for displaying. Therefore, the dual-screen display device provided by the embodiment can output corresponding display content according to the display resolution requirement of the corresponding display when the HDMI is switched, so that the display content of the designated application can meet the resolution requirement of the corresponding display when the display content is displayed on different displays, and can adapt to various resolution requirements to avoid the phenomenon of screen blooming.

Fig. 11 is a first flowchart illustrating a switching method of the HDMI of the dual display device according to the exemplary embodiment. Referring to fig. 11, the present application also provides a switching method of an HDMI of a dual display device, which is executed by a first controller in the dual display device shown in fig. 10, and the method includes the following steps:

s1, receiving an application starting instruction for starting a specified application, wherein the application starting instruction carries an application type of the specified application, and the application type is used for representing whether the specified application is a first application or a second application and is required to be displayed on a first display or a second display;

s2, in response to the application starting instruction, determining a target HDMI output interface and a target display required by the specified application based on the application type;

s3, acquiring resolution identification data of the target display, wherein the resolution identification data is used for identifying the optimal resolution supported by the target display;

s4, if the resolution identification data is null, determining a first display resolution, and outputting the display content of the specified application to a target display through the target HDMI output interface for displaying according to the first display resolution;

and S5, if the resolution identification data is a non-null value, determining a second display resolution, and outputting the display content of the specified application to a target display through the target HDMI output interface for displaying according to the second display resolution.

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 method for switching the HDMI for the dual-screen display device 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. Particularly, for the embodiment of the switching method of the HDMI of the dual-screen display device, since it is basically similar to the embodiment of the dual-screen display device, the description is simple, and for the relevant points, reference may be made to the description in the embodiment of the dual-screen 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 dual screen display device, comprising:

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

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

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

taking the default display resolution as a first display resolution;

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

6. The dual screen display device of claim 5, wherein the first controller is further configured to:

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

receiving a hot plug control instruction sent by the first controller;

8. The dual screen display device of claim 6, wherein the first controller is further configured to:

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

and displaying the transition picture in a second display.

10. A switching method of HDMI of a double-screen display device is characterized by comprising the following steps: