CN112040285B - Interface display method and display equipment - Google Patents

Interface display method and display equipment Download PDF

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Publication number
CN112040285B
CN112040285B CN202010838762.4A CN202010838762A CN112040285B CN 112040285 B CN112040285 B CN 112040285B CN 202010838762 A CN202010838762 A CN 202010838762A CN 112040285 B CN112040285 B CN 112040285B
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China
Prior art keywords
interface
display device
variable
display
value
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CN112040285A (en
Inventor
片兆峰
宋虎
侯进良
张来智
张荣波
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Hisense Visual Technology Co Ltd
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Hisense Visual Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
    • H04N21/43632—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • H04N21/43635—HDMI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/4424—Monitoring of the internal components or processes of the client device, e.g. CPU or memory load, processing speed, timer, counter or percentage of the hard disk space used
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4436—Power management, e.g. shutting down unused components of the receiver

Abstract

The application discloses an interface display method and display equipment, which are used for avoiding the influence of direct current shutdown on interface display of the display equipment. The method is applied to a display device and comprises the following steps: detecting whether a first playing interface used for playing media resources provided by a signal source has a state change, wherein the state change refers to that the first playing interface is switched from an operating state to a stop state, the stop state refers to a state when the first playing interface is completely covered by other interfaces, and the operating state refers to that the first playing interface is being played; when the state change is detected, detecting whether the display equipment is triggered to perform direct current shutdown operation, if so, maintaining a first variable in the display equipment as a current first value, wherein the first variable is the first value and indicates that the display equipment takes the first play interface as a first interface displayed after the display equipment is started; and when the display equipment is started, displaying a first interface according to the value of the first variable.

Description

Interface display method and display equipment
Technical Field
The present application relates to the field of display technologies, and in particular, to an interface display method and a display device.
Background
Generally, the first interface displayed after the display device is powered on is related to the interface played before the display device is powered off, and is kept as consistent as possible. For example, if the interface played before the display device is turned off is a signal source (source) interface for playing media resources provided by a signal source, the first interface displayed after the display device is turned on is still the signal source interface; if the interface played before the display device is turned off is not the signal source interface but a HOME (HOME) interface or an application interface, the first interface displayed after the display device is turned on may be the HOME interface. Therefore, the use habits of the user can be fitted as much as possible, and the user experience is improved.
However, when the dc is turned off, the display device often pops up a shutdown interface to cover the currently played interface, which means that even if the display device plays the signal source interface before the dc is turned off, the display device does not display the signal source interface but displays the main interface because the shutdown interface popped up when the dc is turned off covers the signal source interface, and thus the display device does not display the signal source interface first but displays the main interface after the dc is turned on.
Disclosure of Invention
The embodiment of the application provides an interface display method and display equipment, which are used for avoiding the influence of direct current shutdown on the interface display of the display equipment.
In a first aspect, there is provided a display device comprising:
a display;
a controller coupled with the display, the controller configured to:
detecting whether a first playing interface used for playing media resources provided by a signal source has a state change, wherein the state change refers to that the first playing interface is switched from an operating state to a stop state, the stop state refers to a state when the first playing interface is completely covered by other interfaces, and the operating state refers to that the first playing interface is being played;
when the state change is detected, detecting whether the display equipment is triggered to perform direct current shutdown operation, if so, maintaining a first variable in the display equipment as a current first value, wherein the first variable is the first value and indicates that the display equipment takes the first play interface as a first interface displayed after the display equipment is started;
and when the display equipment is started, displaying a first interface according to the value of the first variable.
In a second aspect, an interface display method is provided, which is applied to a display device, and includes:
detecting whether a first playing interface used for playing media resources provided by a signal source has a state change, wherein the state change refers to that the first playing interface is switched from an operating state to a stop state, the stop state refers to a state when the first playing interface is completely covered by other interfaces, and the operating state refers to that the first playing interface is being played;
when the state change is detected, detecting whether the display equipment is triggered to perform direct current shutdown operation or not, if so, maintaining a first variable in the display equipment as a current first value, wherein the first variable is the first value and indicates that the display equipment takes the first playing interface as a first interface displayed after startup;
and when the display equipment is started, displaying a first interface according to the value of the first variable.
In the above embodiment, when the first playing interface is switched from the running state to the stopped state, the display device checks whether the direct current shutdown operation is triggered by the display device, and if so, maintains the first variable as the current first value to indicate that the first interface displayed after the display device is started is the first playing interface. Therefore, when the display equipment carries out direct current shutdown under the condition of playing the first playing interface, even if the shutdown interface covers the first playing interface, the first playing interface can still be displayed during startup.
Drawings
Fig. 1A is a schematic diagram illustrating an operation scenario between the display device 200 and the control apparatus 100;
fig. 1B is a block diagram schematically illustrating a configuration of the control apparatus 100 in fig. 1A;
fig. 1C is a block diagram schematically illustrating a configuration of the display device 200 in fig. 1A;
FIG. 1D is a block diagram illustrating an architectural configuration of an operating system in memory of display device 200;
FIG. 2 is a flowchart illustrating an interface display method provided by an embodiment of the present application;
fig. 3 is a flowchart illustrating the state switching of the first play interface.
Detailed Description
To make the objects, technical solutions and advantages of the exemplary embodiments of the present application clearer, the technical solutions in the exemplary embodiments of the present application will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present application, and it is obvious that the described exemplary embodiments are only a part of the embodiments of the present application, but not all the embodiments.
All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments shown in the present application without inventive effort, shall fall within the scope of protection of the present application. Moreover, while the disclosure herein has been presented in terms of exemplary embodiment or embodiments, it is to be understood that each aspect of the disclosure can independently be implemented as a single unitary embodiment.
The terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.
The term "module," as used herein, refers 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 "gesture" as used in this application refers to a user's behavior through a change in hand shape or an action such as hand motion to convey a desired idea, action, purpose, and/or result.
To facilitate understanding of the interface display method and the display device provided in the embodiments of the present application, first, a structure of the display device, interaction between the display device and the control apparatus are described below by way of example:
fig. 1A is a schematic diagram illustrating an operation scenario between the display device 200 and the control apparatus 100. As shown in fig. 1A, the control apparatus 100 and the display device 200 may communicate with each other in a wired or wireless manner.
Among them, the control apparatus 100 is configured to control the display device 200, which may receive an operation instruction input by a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an intermediary for 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.
The control device 100 may be a remote controller 100A, which includes infrared protocol communication or bluetooth protocol communication, and other short-distance communication methods, etc. to control the display apparatus 200 in a wireless or other wired manner. The user may input a user instruction through a key on a remote controller, voice input, control panel input, etc., to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement the function of controlling 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. For example, the display device 200 is controlled using an application program running on the smart device. The application program may provide various controls to a user through an intuitive User Interface (UI) on a screen associated with the smart device through configuration.
For example, the mobile terminal 100B may install a software application with the display device 200, implement connection communication through a network communication protocol, and implement the purpose of one-to-one control operation and data communication. Such as: the mobile terminal 100B may be caused to establish a control instruction protocol with the display device 200 to implement the functions of the physical keys as arranged in the remote control 100A by operating various function keys or virtual buttons of the user interface provided 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.
The display apparatus 200 may be implemented as a television, and may provide an intelligent network television function of a broadcast receiving television function as well as a computer support function. Examples of the display device include a digital television, a web television, a smart television, an Internet Protocol Television (IPTV), and the like.
The display device 200 may be a liquid crystal display, an organic light emitting display, a projection display device. The specific display device type, size, resolution, etc. are not limited.
The display apparatus 200 also performs data communication with the server 300 through various communication means. Here, the display apparatus 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 300 may provide various contents and interactions to the display apparatus 200. By way of example, the display device 200 may send and receive information such as: receiving Electronic Program Guide (EPG) data, receiving software program updates, or accessing a remotely stored digital media library. The servers 300 may be a group or groups of servers, 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.
Fig. 1B is a block diagram illustrating the configuration of the control device 100. As shown in fig. 1B, the control device 100 includes a controller 110, a memory 120, a communicator 130, a user input interface 140, an output interface 150, and a power supply 160.
The controller 110 includes a Random Access Memory (RAM)111, a Read Only Memory (ROM)112, a processor 113, 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 of the communication cooperation, external and internal data processing functions.
Illustratively, when an interaction of a user pressing a key disposed on the remote controller 100A or an interaction of touching a touch panel disposed on the remote controller 100A is detected, the controller 110 may control to generate a signal corresponding to the detected interaction and transmit the signal to the display device 200.
And a memory 120 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 120 may store various control signal commands input by a user.
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 control apparatus 100 transmits a control signal (e.g., a touch signal or a button signal) to the display device 200 via the communicator 130, and the control apparatus 100 may receive the signal transmitted by the display device 200 via the communicator 130. The communicator 130 may include an infrared signal interface 131 and a radio frequency signal interface 132. For example: 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.
The user input interface 140 may include at least one of a microphone 141, a touch pad 142, a sensor 143, a key 144, and the like, so that a user can input a user instruction regarding controlling the display apparatus 200 to the control apparatus 100 through voice, touch, gesture, press, and the like.
The output interface 150 outputs a user instruction received by the user input interface 140 to the display apparatus 200, or outputs an image or voice signal received by the display apparatus 200. Here, the output interface 150 may include an LED interface 151, a vibration interface 152 generating vibration, a sound output interface 153 outputting sound, a display 154 outputting images, and the like. For example, the remote controller 100A may receive an output signal such as audio, video, or data from the output interface 150 and display the output signal in the form of an image on the display 154, in the form of audio at the sound output interface 153, or in the form of vibration at the vibration interface 152.
And a power supply 160 for providing operation power support for each element of the control device 100 under the control of the controller 110. In the form of a battery and associated control circuitry.
A hardware configuration block diagram of the display device 200 is exemplarily illustrated in fig. 1C. As shown in fig. 1C, the display apparatus 200 may further include a tuner demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a memory 260, a user interface 265, a video processor 270, a display 275, an audio processor 280, an audio input interface 285, and a power supply 290.
The tuner demodulator 210 receives the broadcast television signal in a wired or wireless manner, may perform modulation and demodulation processing such as amplification, mixing, and resonance, and is configured to demodulate, from a plurality of wireless or wired broadcast television signals, an audio/video signal carried in a frequency of a television channel selected by a user, and additional information (e.g., EPG data).
The tuner demodulator 210 is responsive to the user selected frequency of the television channel and the television signal carried by the frequency, as selected by the user and controlled by the controller 250.
The tuner demodulator 210 can receive a television signal in various ways according to the broadcasting system of the television signal, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting, internet broadcasting, or the like; and according to different modulation types, a digital modulation mode or an analog modulation mode can be adopted; and can demodulate the analog signal and the digital signal according to the different kinds of the received television signals.
In other exemplary embodiments, the tuning demodulator 210 may also be in an external device, such as an external set-top box. In this way, the set-top box outputs a television signal after modulation and demodulation, and inputs the television signal into the display apparatus 200 through the external device interface 240.
The communicator 220 is a component for communicating with an external device or an external server according to various communication protocol types. For example, the display apparatus 200 may transmit content data to an external apparatus connected via the communicator 220, or browse and download content data from an external apparatus connected via the communicator 220. The communicator 220 may include a network communication protocol module or a near field communication protocol module, such as a WIFI module 221, a bluetooth communication protocol module 222, and a wired ethernet communication protocol module 223, so that the communicator 220 may receive a control signal of the control device 100 according to the control of the controller 250 and implement the control signal as a WIFI signal, a bluetooth signal, a radio frequency signal, and the like.
The detector 230 is a component of the display apparatus 200 for collecting signals of an external environment or interaction with the outside. The detector 230 may include an image collector 231, such as a camera, a video camera, etc., which may be used to collect external environment scenes to adaptively change the display parameters of the display device 200; and the function of acquiring the attribute of the user or interacting gestures with the user so as to realize the interaction between the display equipment and the user. A light receiver 232 may also be included to collect ambient light intensity to adapt to changes in display parameters of the display device 200, etc.
In some other exemplary embodiments, the detector 230 may further include a temperature sensor, such as by sensing an ambient temperature, and the display device 200 may adaptively adjust a display color temperature of the image. For example, when the temperature is higher, the display apparatus 200 may be adjusted to display a color temperature of an image that is cooler; when the temperature is lower, the display device 200 may be adjusted to display a warmer color temperature of the image.
In some other exemplary embodiments, the detector 230, which may further include a sound collector, such as a microphone, may be configured to receive a sound of a user, such as a voice signal of a control instruction of the user to control the display device 200; alternatively, ambient sounds may be collected that identify the type of ambient scene, enabling the display device 200 to adapt to ambient noise.
The external device interface 240 is a component for providing the controller 210 to control data transmission between the display apparatus 200 and an external apparatus. The external device interface 240 may be connected to 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 240 may include: a High Definition Multimedia Interface (HDMI) terminal 241, a Composite Video Blanking Sync (CVBS) terminal 242, an analog or digital Component terminal 243, a Universal Serial Bus (USB) terminal 244, a Component terminal (not shown), a red, green, blue (RGB) terminal (not shown), and the like.
The controller 250 controls the operation of the display device 200 and responds to the operation of the user by running various software control programs (such as an operating system and various application programs) stored on the memory 260.
As shown in fig. 1C, the controller 250 includes a Random Access Memory (RAM)251, a Read Only Memory (ROM)252, a graphics processor 253, a CPU processor 254, a communication interface 255, and a communication bus 256. The RAM251, the ROM252, the graphic processor 253, and the CPU processor 254 are connected to each other through a communication bus 256.
The ROM252 stores various system boot instructions. When the display apparatus 200 starts power-on upon receiving the power-on signal, the CPU processor 254 executes a system boot instruction in the ROM252, copies the operating system stored in the memory 260 to the RAM251, and starts running the boot operating system. After the start of the operating system is completed, the CPU processor 254 copies the various application programs in the memory 260 to the RAM251 and then starts running and starting the various application programs.
A graphic processor 253 for generating screen images of various graphic objects such as icons, images, and operation menus. The graphic processor 253 may include an operator for performing an operation by receiving various interactive instructions input by a user, and further displaying various objects according to display attributes; and a renderer for generating various objects based on the operator and displaying the rendered result on the display 275.
A CPU processor 254 for executing operating system and application program instructions stored in memory 260. And according to the received user input instruction, processing of various application programs, data and contents is executed so as to finally display and play various audio-video contents.
In some example embodiments, the CPU processor 254 may comprise a plurality of processors. The plurality of processors may include one main processor and a plurality of or one sub-processor. A main processor for performing some initialization operations of the display apparatus 200 in the display apparatus preload mode and/or operations of displaying a screen in the normal mode. A plurality of or one sub-processor for performing an operation in a state of a standby mode or the like of the display apparatus.
The communication interface 255 may include a first interface to an nth interface. These interfaces may be network interfaces that are connected to external devices via a network.
The controller 250 may control the overall operation of the display apparatus 200. For example: in response to receiving a user input command for selecting a GUI object displayed on the display 275, the controller 250 may perform an operation related to the object selected by the user input command.
Where the object may be any one of the selectable objects, such as a hyperlink or an icon. The operation related to the selected object is, for example, an operation of displaying a link to a hyperlink page, document, image, or the like, or an operation of executing a program corresponding to an icon. The user input command for selecting the GUI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch panel, etc.) connected to the display apparatus 200 or a voice command corresponding to a user uttering voice.
A memory 260 for storing various types of data, software programs, or applications for driving and controlling the operation of the display device 200. The memory 260 may include volatile and/or non-volatile memory. And the term "memory" includes the memory 260, the RAM251 and the ROM252 of the controller 250, or a memory card in the display device 200.
In some embodiments, the memory 260 is specifically used for storing an operating program for driving the controller 250 of the display device 200; storing various application programs built in the display apparatus 200 and downloaded by a user from an external apparatus; data such as visual effect images for configuring various GUIs provided by the display 275, various objects related to the GUIs, and selectors for selecting the GUI objects are stored.
In some embodiments, the memory 260 is specifically configured to store drivers and related data for the tuner demodulator 210, the communicator 220, the detector 230, the external device interface 240, the video processor 270, the display 275, the audio processor 280, and the like, external data (e.g., audio-visual data) received from the external device interface, or user data (e.g., key information, voice information, touch information, and the like) received from the user interface.
In some embodiments, memory 260 specifically stores software and/or programs representing an Operating System (OS), which may include, for example: a kernel, middleware, an Application Programming Interface (API), and/or an application program. Illustratively, the kernel may control or manage system resources, as well as functions implemented by other programs (e.g., the middleware, APIs, or applications); at the same time, the kernel may provide an interface to allow middleware, APIs, or applications to access the controller to enable control or management of system resources.
A block diagram of the architectural configuration of the operating system in the memory of the display device 200 is illustrated in fig. 1D. The operating system architecture comprises an application layer, a middleware layer and a kernel layer from top to bottom.
The application layer, the application programs built in the system and the non-system-level application programs belong to the application layer and are responsible for direct interaction with users. The application layer may include a plurality of applications such as NETFLIX applications, setup applications, media center applications, and the like. These applications may be implemented as Web applications that execute based on a WebKit engine, and in particular may be developed and executed based on HTML, Cascading Style Sheets (CSS), and JavaScript.
Here, HTML, which is called HyperText Markup Language (HyperText Markup Language) as a whole, is a standard Markup Language for creating web pages, and describes web pages through Markup tags, where the HTML tags are used to describe characters, graphics, animation, sound, tables, links, etc., and a browser reads an HTML document, interprets the content of tags in the document, and displays the content in the form of web pages.
CSS, known as Cascading Style Sheets (Cascading Style Sheets), is a computer language used to represent the Style of HTML documents, and may be used to define Style structures, such as fonts, colors, locations, etc. The CSS style can be directly stored in the HTML webpage or a separate style file, so that the style in the webpage can be controlled.
JavaScript, a language applied to programming Web pages, can be inserted into an HTML page and interpreted and executed by a browser. The interaction logic of the Web application is realized by JavaScript. The JavaScript can package a JavaScript extension interface through a browser, realize the communication with the kernel layer,
the middleware layer can provide some standardized interfaces to support the operation of various environments and systems. For example, the middleware layer may be implemented as multimedia and hypermedia information coding experts group (MHEG) middleware related to data broadcasting, DLNA middleware which is middleware related to communication with an external device, middleware which provides a browser environment in which each application program in the display device operates, and the like.
The kernel layer provides core system services such as: file management, memory management, process management, network management, system security authority management and the like. The kernel layer may be implemented as a kernel based on various operating systems, for example, a kernel based on the Linux operating system.
The kernel layer also provides communication between system software and hardware, and provides device driver services for various hardware, such as: provide display driver for the display, provide camera driver for the camera, provide button driver for the remote controller, provide wiFi driver for the WIFI module, provide audio driver for audio output interface, provide power management drive for Power Management (PM) module etc..
A user interface 265 receives various user interactions. Specifically, it is used to transmit an input signal of a user to the controller 250 or transmit an output signal from the controller 250 to the user. For example, the remote controller 100A 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 interface 265, and then the input signal is transferred to the controller 250 through the user interface 265; alternatively, the remote controller 100A may receive an output signal such as audio, video, or data output from the user interface 265 via the controller 250, and display the received output signal or output the received output signal in audio or vibration form.
In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on the display 275, and the user interface 265 receives the user input commands through the GUI. Specifically, the user interface 265 may receive user input commands for controlling the position of a selector in the GUI to select different objects or items.
Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user interface 265 receives the user input command by recognizing the sound or gesture through a sensor.
The video processor 270 is configured to receive an external 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 that is directly displayed or played on the display 275.
Illustratively, the video processor 270 includes a demultiplexing module, a video decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, and the like.
The demultiplexing module is configured to demultiplex an input audio/video data stream, for example, an input MPEG-2 stream (based on a compression standard of a digital storage media moving image and voice), and demultiplex the input audio/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 image 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, for example, convert a frame rate of an input 60Hz video into a frame rate of 120Hz or 240Hz, where a common format is implemented by using, for example, an interpolation frame method.
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, such as converting the format of the signal output by the frame rate conversion module to output an RGB data signal.
And a display 275 for receiving the image signal from the output of the video processor 270 and displaying video, images and menu manipulation interfaces. For example, the display may display video from a broadcast signal received by the tuner demodulator 210, may display video input from the communicator 220 or the external device interface 240, and may display an image stored in the memory 260. The display 275, while displaying a user manipulation interface UI generated in the display apparatus 200 and used to control the display apparatus 200.
And, the display 275 may include a display screen assembly for presenting a picture and a driving assembly for driving the display of an image. Alternatively, a projection device and projection screen may be included, provided display 275 is a projection display.
The audio processor 280 is configured to receive an external audio signal, decompress and decode the received audio signal 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 by the speaker 286.
Illustratively, audio processor 280 may support various audio formats. Such as MPEG-2, MPEG-4, Advanced Audio Coding (AAC), high efficiency AAC (HE-AAC), and the like.
Audio output interface 285 receives audio signals from the output of audio processor 280. For example, the audio output interface may output audio in a broadcast signal received via the tuner demodulator 210, may output audio input via the communicator 220 or the external device interface 240, and may output audio stored in the memory 260. The audio output interface 285 may include a speaker 286, or an external audio output terminal 287, such as an earphone output terminal, that outputs to a generating device of an external device.
In other exemplary embodiments, video processor 270 may comprise one or more chips. Audio processor 280 may also comprise one or more chips.
And, in other exemplary embodiments, the video processor 270 and the audio processor 280 may be separate chips or may be integrated with the controller 250 in one or more chips.
And a power supply 290 for supplying power supply support to the display apparatus 200 from the power input from the external power source under the control of the controller 250. The power supply 290 may be a built-in power supply circuit installed inside the display apparatus 200 or may be a power supply installed outside the display apparatus 200.
In one example, the display device records whether an interface played before the shutdown is a signal source interface, and if the interface is the signal source interface, the signal source interface is displayed firstly after the startup; if the interface is not a signal source interface, but other interfaces such as a third-party application interface, a main interface and the like, the main interface is firstly displayed after the power-on. Therefore, the interfaces displayed before and after the display equipment is turned on and turned off are kept consistent as much as possible, so that the use habits of users are met, and better user experience is guaranteed. The signal source Interface is used for playing media resources, such as audio and video, provided by a signal source, and the signal source may include a plurality of different signal sources, such as a High Definition Multimedia Interface (HDMI), a Digital Television (DTV), and the like.
However, in some embodiments, when the display device performs the dc shutdown operation, a shutdown interface may pop up, where the shutdown interface generally includes a dialog box, and the dialog box is mainly used to prompt the user that the shutdown interface is currently performed, and the pop-up shutdown interface covers an interface displayed by the display device before the dc shutdown operation is performed. This means that even if the display device plays the signal source interface before the dc power-off, the shutdown interface popped up when the dc power-off covers the signal source interface, which results in that the interface played before the shutdown recorded by the display device is not the signal source interface, and further results in that the display device does not display the signal source interface but displays the main interface after the dc power-off. The dc power-off may also be referred to as dc standby, and unlike ac power-off in which the power supply of the display device is completely cut off, dc power-off does not cut off the power supply of the display device, and the display device can still be turned on in response to a power-on command input through the control device after dc power-off.
In view of the above problems, the present application provides an interface display method to avoid the influence of dc shutdown on the interface display of the display device. For ease of understanding, the following description is made in conjunction with the flow shown in FIG. 2:
referring to fig. 2, fig. 2 is a flowchart illustrating an interface display method provided by an embodiment of the present application. The method can be applied to display devices such as smart televisions, digital televisions and the like. As shown in fig. 2, the process may include:
in step S41, it is detected whether a state change occurs in the first playback interface, where the state change is a switch from the running state to the stopped state.
The first playing interface is the signal source interface described above, that is, the interface for playing the media resource provided by the signal source. The running state in step S41 refers to a state where the first playing interface is being played, and the stop state refers to a state where the first playing interface is completely covered by other interfaces, specifically, where complete covering refers to a state where the first playing interface is completely covered by other interfaces, and when the first playing interface is completely covered by other interfaces, the first playing interface is invisible from the perspective of the user and cannot interact with the first playing interface. Other interfaces here may be a main interface of the display device, an application interface of an installed third-party application on the display device, the shutdown interface described above, and the like.
When the first playing interface is in the running state, as an embodiment, if it is detected that the first playing interface is completely covered by other interfaces, the first playing interface is switched from the current running state to the stop state. The specific state switching process of the first playing interface is described below with reference to fig. 3 for example, and is not described herein again.
Step S42, when it is detected that the first playing interface has the above state change, it is detected whether the display device is triggered to perform a dc shutdown operation, and if so, a first variable in the display device is maintained as a current first value, where the first variable is the first value and indicates that the display device uses the first playing interface as a first interface to be displayed after the display device is turned on.
In an embodiment, when it is detected that the state change occurs in the first playing interface, if it is detected that the display device is not triggered to perform a dc shutdown operation, the first variable may be adjusted from a current first value to a second value, where the first variable is the second value and indicates that the display device displays a non-signal-source interface after being powered on, and specifically, the non-signal-source interface may be a main interface of the display device. The first variable may be a static global variable, and the current value of the first variable is not changed by the shutdown operation of the display device.
In one example, the display device may adjust the first variable to a different value according to a difference of a current signal source, so that after the display device is powered on, the display device may display the first play interface according to the signal source corresponding to the current value of the first variable. The specific corresponding relationship between the signal source and the value of the first variable may be set according to actual needs, which is not limited in this application. According to this embodiment, the first value in step S42 is the value corresponding to the current signal source.
In one embodiment, when the first playing interface is switched to play, the current signal source can be detected, and the value of the first variable is adjusted according to the current signal source. For example, if the current signal source is detected to be HDMI, the value of the first variable may be adjusted accordingly to be the value 1007 corresponding to the HDMI signal source; if the current signal source is detected to be a TV, the value of the first variable can be adjusted to be 0 corresponding to the value of the TV signal source. The above switching to the first playing interface for playing may include: and switching the first playing interface from the stop state to the running state, playing the first playing interface for the first time and the like. In one embodiment, when the first playing interface is played, the display device may adjust a value of the first variable according to the switched signal source in response to the signal source switching instruction.
In an example, a second variable may be further set in the display device, and a value of the second variable is used to record whether the display device is triggered to perform a dc shutdown operation. As an embodiment, the display device may set, in response to the dc power-off instruction, a value of the second variable to a third value, so as to indicate that the display device is triggered to perform the dc power-off operation by the second variable being the third value. Specifically, the dc power-off command may be input by a user operating the control device, for example, the user may input a key input command of a power key by pressing the power key on the control device; the dc shutdown instruction may also be triggered by the display device when the display device meets a preset shutdown condition, for example, when a preset shutdown time is reached.
As an embodiment, the second variable may be a temporary global variable, and when the display device completes the dc shutdown operation, a current value of the second variable is released.
As another example, the second variable may be a static global variable whose current value is not changed by the shutdown operation of the display device. For one embodiment, the display device may set the second variable to a third value in response to the dc power-off instruction, and may set the second variable to a fourth value in response to the power-on instruction, where the fourth value of the second variable indicates that the display device is not triggered to perform the dc power-off operation.
It should be noted that the first value, the second value, the third value, and the fourth value in the foregoing embodiments are only named for convenience of distinction, and do not limit specific values. The first value and the second value are different values, for example, if the second value is-1, the first value is a value other than-1, such as 0, 1007, and the like; the third value is a different value than the fourth value. In addition, the above four values are not necessarily related to actual values.
And step S43, when the display device is started, displaying a first interface according to the value of the first variable.
In one embodiment, in step S43, when the display device is powered on, it may be checked whether the recorded current value of the first variable is the second value, and if so, a non-first playing interface, such as a main interface, is displayed; if not, displaying the first playing interface according to the specific value of the first variable, for example, if the value of the first variable is checked to be 1007, and the signal source corresponding to the value is the HDMI signal source, displaying the first playing interface by taking the HDMI signal source as the current signal source; and if the value of the first variable is checked to be 0 and the signal source corresponding to the value is a TV signal source, the TV signal source is used as the current signal source to display the first playing interface.
Thus, the flow shown in fig. 2 is completed.
Through the process shown in fig. 2, the display device may not change the value of the first variable used for indicating the first interface displayed after the power is turned on when the dc power is turned off, thereby avoiding the influence of the dc power off on the interface display. The interfaces displayed before and after the display equipment is started are consistent to the user, the use habits of the user are met, and better user experience can be ensured.
In the flow shown in fig. 2, the first playing interface state switching process is described as follows by way of example:
referring to fig. 3, a first play interface state switching flowchart is exemplarily shown in fig. 3. As shown in fig. 3, the process may include the following steps:
in step S51, in response to an instruction to switch to a specified signal source, a first playing interface is played based on the specified signal source.
In one example, the display device has at least one signal source channel, such as an Analog TV (ATV) channel, a DTV channel, an HDMI channel, and the like, for transmitting an input signal from a corresponding signal source, respectively. During the operation of the display device, different signal sources, signal sources and applications may be switched to play different contents.
In response to an instruction instructing to switch to a specified signal source, as an embodiment, the display device switches to a signal source channel corresponding to the specified signal source, and plays the first play interface based on an input signal of the signal source channel. Taking the designated signal source as an HDMI signal source as an example, when an instruction indicating switching to the HDMI signal source is received, the display device switches to an HDMI channel in response to the instruction, and plays the first play interface based on an input signal of the HDMI channel.
The instruction for switching to the specified signal source may be inputted by a user operating the control device as an embodiment. For example, a user may Input a corresponding key Input instruction by pressing an "Input" key or a "source" key on the control device, the display device outputs all signal sources currently accessed by the display device to the user in response to the key Input instruction, and the user may operate the control device to select one of the signal sources and Input an instruction to switch to the signal source to the display device.
In one example, the switching of the signal sources needs to be in accordance with a Television Input Framework (TIF). Taking switching to the HDMI signal source as an example, when the HDMI signal source needs to be switched, the display device may use the tune method of TvView, and finally switch the current signal source channel to the HDMI channel by layer-by-layer calling of the TIF framework, that is, switch the current signal source to the HDMI signal source. The TvView is mainly used for displaying the media content provided by the current signal source on the first playing interface.
As an embodiment, after switching to a specified signal source, the display device may adjust the value of the first variable to a value corresponding to the specified signal source, for example, when switching from an HDMI signal source to a TV signal source, the display device may adjust the value of the first variable from 1007 to 0. The first variable here is the first variable in the flow shown in fig. 2 above. As an embodiment, the display device may obtain a type (type) value in the signal source information (TvInputInfo) of the current signal source, and adjust a value of the first variable to the type value.
Step S52, when the other interfaces completely cover the first playing interface, the first playing interface is switched from the running state to the stop state.
In one example, the Activity (Activity) in which the first playback interface is located may have four states: an operating state, a pause state, a stop state and a destruction state. The embodiment of the application mainly relates to an operating state and a stopping state in the four states, and when the Activity is in the operating state of the four states, a first playing interface is played in foreground and can interact with a user; when the first playing interface is covered by other interfaces, the Activity is switched to a stop state, and the first playing interface is invisible to the user and cannot interact with the user.
In one embodiment, an Activity stack is maintained in the system of the display device, when a new Activity is created, the new Activity is stored to the top of the Activity stack, and the new Activity is located above the previous activities in the Activity stack, and the previous activities are shifted to the background. When the first play interface is played through the above step S51, the Activity where the first play interface is located is stored at the top of the Activity stack in the display device.
When other interfaces cover the first playing interface, as an embodiment, the display device may call an onStop method of the Activity of the first playing interface, so as to call a reset (reset) method of TvView to switch the Activity of the first playing interface to the stop state, and further switch the first playing interface to the stop state.
The flow shown in fig. 3 is completed.
It should be noted that the flow shown in fig. 3 is only an example, and there may be other methods for switching the state of the first playing interface in practical application, which are not described herein by way of example.
As described in the above embodiment, when the first playing interface is switched from the running state to the stopped state and is currently in the dc shutdown state, the display device does not change the current value of the first variable used for indicating the first interface displayed after the startup, and displays the first interface according to the current value of the first variable when the startup. Therefore, when the display device is turned off through direct current under the condition that the first playing interface is displayed, even if the displayed turning-off interface covers the first playing interface, the display device can still display the first playing interface according to the current value of the first variable when the display device is turned on.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (10)

1. A display device, comprising:
a display;
a controller coupled with the display, the controller configured to:
detecting whether a first playing interface used for playing media resources provided by a signal source has a state change, wherein the state change refers to that the first playing interface is switched from an operating state to a stop state, the stop state refers to a state when the first playing interface is completely covered by other interfaces, and the operating state refers to that the first playing interface is being played;
when the state change is detected, detecting whether the display equipment is triggered to perform direct current shutdown operation or not, if so, maintaining a first variable in the display equipment as a current first value, wherein the first variable is the first value and indicates that the display equipment takes the first playing interface as a first interface displayed after startup;
and when the display equipment is started, displaying a first interface according to the value of the first variable.
2. The display device of claim 1, wherein the controller is further configured to:
when the state change is detected, if it is detected that the display device is not triggered to perform direct-current shutdown operation, the first variable is adjusted from a current first value to a second value, and the first variable is the second value and indicates that the display device uses a main interface as a first interface displayed after the display device is started.
3. The display device of claim 1, wherein the controller is further configured to:
and responding to a direct current shutdown instruction, setting a second variable in the display device to be a third value, wherein the second variable is the third value and indicates that the display device is triggered to perform direct current shutdown operation.
4. The display device of claim 3, wherein the controller is configured to detect whether the display device is triggered to DC off by:
checking whether the second variable in the display equipment is a third value or not, and if so, determining that the display equipment is triggered to perform direct current shutdown operation; if not, determining that the display equipment is not triggered to perform direct current shutdown operation.
5. The display device according to claim 3, wherein the second variable is a temporary global variable, and when the display device completes a dc shutdown operation, a current value of the second variable is released.
6. An interface display method is applied to a display device, and comprises the following steps:
detecting whether a first playing interface used for playing media resources provided by a signal source has a state change, wherein the state change refers to that the first playing interface is switched from an operating state to a stop state, the stop state refers to a state when the first playing interface is completely covered by other interfaces, and the operating state refers to that the first playing interface is being played;
when the state change is detected, detecting whether the display equipment is triggered to perform direct current shutdown operation or not, if so, maintaining a first variable in the display equipment as a current first value, wherein the first variable is the first value and indicates that the display equipment takes the first playing interface as a first interface displayed after startup;
and when the display equipment is started, displaying a first interface according to the value of the first variable.
7. The method of claim 6, further comprising:
when the state change is detected, if it is detected that the display device is not triggered to perform direct-current shutdown operation, the first variable is adjusted from a current first value to a second value, and the first variable is the second value and indicates that the display device uses a main interface as a first interface displayed after the display device is started.
8. The method of claim 6, further comprising:
and responding to a direct current shutdown instruction, setting a second variable in the display device to be a third value, wherein the second variable is the third value and indicates that the display device is triggered to perform direct current shutdown operation.
9. The method of claim 8, wherein the detecting whether the display device is triggered to perform a DC shutdown operation comprises:
checking whether the second variable in the display equipment is a third value, and if so, determining that the display equipment is triggered to perform direct current shutdown operation; if not, determining that the display equipment is not triggered to perform direct current shutdown operation.
10. The method according to claim 8, wherein the second variable is a temporary global variable, and when the display device completes a dc shutdown operation, a current value of the second variable is released.
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