CN114116622A

CN114116622A - Display device and file display method

Info

Publication number: CN114116622A
Application number: CN202111340481.7A
Authority: CN
Inventors: 孙永江; 邵无忌; 王梦洁
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-03-01

Abstract

The application provides a display device and a file display method. If the display equipment detects that an external storage equipment is connected with an external device interface, acquiring a root directory folder name list of the external storage equipment; judging whether the external storage equipment comprises a target folder which needs to be used by a user or not according to the name list of the root directory folder; if the external storage device comprises a target folder, acquiring file information in the target folder; and creating a file information display window in the user interface for displaying the file information in the target folder. The display device and the file display method can automatically open the folder needed to be used by the user in the external storage device, are convenient for the user to directly browse the files, quickly find the files needed to be used and improve the use experience of the user.

Description

Display device and file display method

Technical Field

The present application relates to the field of display device technologies, and in particular, to a display device and a file display method.

Background

The display device is a terminal device capable of outputting a specific display picture, and may be a terminal device such as a smart television, a mobile terminal, a smart advertisement screen, and a projector. Taking an intelligent television as an example, the intelligent television is based on an Internet application technology, is provided with an open operating system and a chip, is provided with an open application platform, can realize a bidirectional man-machine interaction function, integrates multiple functions of video, entertainment, data and the like, and is a television product for meeting diversified and personalized requirements of users.

The display device is also provided with an external device interface which can be used for connecting external storage equipment (such as a U disk, a mobile hard disk and the like). The external storage device stores document data such as documents, audio, videos and pictures, and the display device can display the files selected by the user according to the use requirements of the user. For example, a user can store files such as pictures and documents to be displayed in a U disk in advance, then the U disk is connected with an external device interface of the smart television when meeting display is carried out, and then the files such as the pictures and the documents are found and opened through operation, so that the files such as the pictures and the documents required by the user can be displayed through the smart television.

At present, after an external storage device is connected with a display device through an external device interface, a user needs to manually find a target folder where a file to be used is located on the display device. If the external storage device comprises a plurality of folders, the process of searching the target folder by the user is complicated in operation and long in time consumption, and the use experience of the user is reduced.

Disclosure of Invention

The application provides a display device and a file display method, which aim to solve the problem that a target folder required to be used by a user cannot be automatically opened in an external storage device in the conventional display device.

In one aspect, the present application provides a display device, comprising: a display, an external device interface, and a controller. The display is configured to display a user interface; the external device interface is configured to connect to an external storage device; the controller is configured to perform the following program steps:

and if the external device interface is detected to be connected with only one external storage device, acquiring a root directory folder name list of the external storage device.

And judging whether the external storage equipment comprises a target folder or not according to the root directory folder name list, wherein the target folder is a folder which is preset by a user and needs to be used.

And if the external storage equipment comprises the target folder, acquiring file information in the target folder.

And creating a file information display window in the user interface, wherein the file information display window is used for displaying the file information in the target folder.

On the other hand, the present application further provides a file display method applied to the display device, where the display device is connected to an external storage device through an external device interface, and the file display method includes:

According to the technical scheme, the application provides the display device and the file display method. The display device firstly obtains a name list of a root directory folder in an external storage device connected with the display device, then judges whether the external storage device comprises a target folder required to be used by a user according to the name list of the root directory folder, if the external storage device comprises the target folder, the target folder is automatically opened, and file information in the target folder is displayed, so that the user can directly select a target file. The display device provided by the application can automatically open the folder which needs to be used by the user in the external storage device, so that the user can directly browse the files conveniently, the files which need to be used can be quickly found, and the use experience of the user is improved.

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 creative efforts.

FIG. 1 is a usage scenario of a display device in an embodiment of the present application;

fig. 2 is a block diagram of a hardware configuration of a control device in the embodiment of the present application;

fig. 3 is a hardware configuration diagram of a display device in an embodiment of the present application;

FIG. 4 is a software configuration diagram of a display device in an embodiment of the present application;

FIG. 5 is a schematic diagram illustrating a connection state between a display device and an external storage device according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of a display interface of a root directory of an external storage device according to an embodiment of the present application;

FIG. 7 is a schematic interface diagram of a conference mode of a display device in an embodiment of the present application;

FIG. 8 is a schematic diagram of an interface of a display device displaying root directory file information in an embodiment of the present application;

fig. 9 is a schematic view of a file information display window for displaying file information in the form of a file list in the embodiment of the present application;

fig. 10 is a schematic view of a file information display window for displaying file information in the form of thumbnails in the embodiment of the present application;

FIG. 11 is a schematic diagram of a display interface of a display device for opening a target file in an embodiment of the present application;

FIG. 12 is a schematic diagram of a display interface of a display device for guiding a user to download an application program according to an embodiment of the present application;

FIG. 13 is a schematic diagram of a display interface of a root directory folder display window in an embodiment of the present application;

FIG. 14 is a schematic diagram of a display interface of a display window of an external storage device according to an embodiment of the present application;

FIG. 15 is a schematic diagram of a display interface of a display device for guiding a user to connect to an external storage device according to an embodiment of the present application;

FIG. 16 is a flowchart illustrating a document display method according to an embodiment of the present application;

FIG. 17 is a flowchart illustrating a method for determining whether an external storage device includes a target folder in an embodiment of the present application;

fig. 18 is a flowchart illustrating a method for opening a target file according to an embodiment of the present application.

Detailed Description

To make the purpose and embodiments of the present application clearer, the following will clearly and completely describe the exemplary embodiments of the present application with reference to the attached 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, and not all of the embodiments.

It should be noted that the brief descriptions of the terms in the present application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of the present application. These terms should be understood in their ordinary and customary meaning unless otherwise indicated.

The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between similar or analogous objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances.

The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to all elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

The term "module" 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.

Fig. 1 is a schematic diagram of an operation scenario between a display device and a control apparatus according to an embodiment. As shown in fig. 1, a user may operate the display apparatus 200 through the smart device 300 or the control device 100.

In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes an infrared protocol communication or a bluetooth protocol communication, and other short-distance communication methods, and controls the display device 200 in a wireless or 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.

In some embodiments, the smart device 300 (e.g., mobile terminal, tablet, computer, laptop, etc.) may also be used to control the display device 200. For example, the display device 200 is controlled using an application program running on the smart device.

In some embodiments, the display device 200 may also be controlled in a manner other than the control apparatus 100 and the smart device 300, for example, the voice command control of the user may be directly received by a module configured inside the display device 200 to obtain a voice command, or may be received by a voice control device provided outside the display device 200.

In some embodiments, the display device 200 is also in data communication with a server 400. The display device 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 400 may provide various contents and interactions to the display apparatus 200. The server 400 may be a cluster or a plurality of clusters, and may include one or more types of servers.

Fig. 2 exemplarily shows a block diagram of a configuration of the control apparatus 100 according to an exemplary embodiment. As shown in fig. 2, the control device 100 includes a controller 110, a communication interface 130, a user input/output interface 140, a memory, and a power supply. The control apparatus 100 may receive an input operation instruction from a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an interaction intermediary between the user and the display device 200.

Fig. 3 shows a hardware configuration block diagram of the display apparatus 200 according to an exemplary embodiment.

In some embodiments, the display apparatus 200 includes at least one of a tuner demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a display 260, an audio output interface 270, a memory, a power supply, a user interface.

In some embodiments the controller comprises a processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an nth interface for input/output.

In some embodiments, the display 260 includes a display screen component for presenting a picture, and a driving component for driving an image display, a component for receiving an image signal from the controller output, performing display of video content, image content, and a menu manipulation interface, and a user manipulation UI interface.

In some embodiments, the display 260 may be a liquid crystal display, an OLED display, and a projection display, and may also be a projection device and a projection screen.

In some embodiments, communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, and other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display apparatus 200 may establish transmission and reception of control signals and data signals with the external control apparatus 100 or the server 400 through the communicator 220.

In some embodiments, the user interface may be configured to receive control signals for controlling the apparatus 100 (e.g., an infrared remote control, etc.).

In some embodiments, the detector 230 is used to collect signals of the external environment or interaction with the outside. For example, detector 230 includes a light receiver, a sensor for collecting ambient light intensity; alternatively, the detector 230 includes an image collector, such as a camera, which may be used to collect external environment scenes, attributes of the user, or user interaction gestures, or the detector 230 includes a sound collector, such as a microphone, which is used to receive external sounds.

In some embodiments, the external device interface 240 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, and the like. The interface may be a composite input/output interface formed by the plurality of interfaces.

In some embodiments, the tuner demodulator 210 receives broadcast television signals via wired or wireless reception, and demodulates audio/video signals, such as EPG data signals, from a plurality of wireless or wired broadcast television signals.

In some embodiments, the controller 250 and the modem 210 may be located in different separate devices, that is, the modem 210 may also be located in an external device of the main device where the controller 250 is located, such as an external set-top box.

In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored in memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command for selecting a UI object to be displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.

In some embodiments, the object may be any one of selectable objects, such as a hyperlink, an icon, or other actionable control. The operations related to the selected object are: displaying an operation connected to a hyperlink page, document, image, or the like, or performing an operation of a program corresponding to the icon.

In some embodiments the controller comprises at least one of a Central Processing Unit (CPU), a video processor, an audio processor, a Graphics Processing Unit (GPU), a RAM Random Access Memory (RAM), a ROM (Read-Only Memory), a first to nth interface for input/output, a communication Bus (Bus), and the like.

A CPU processor. For executing operating system and application program instructions stored in the memory, 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 CPU processor may include a plurality of processors. E.g. comprising a main processor and one or more sub-processors.

In some embodiments, a graphics processor for generating various graphics objects, such as: icons, operation menus, user input instruction display graphics, and the like. The graphic processor comprises an arithmetic unit, which performs operation by receiving various interactive instructions input by a user and displays various objects according to display attributes; the system also comprises a renderer for rendering various objects obtained based on the arithmetic unit, wherein the rendered objects are used for being displayed on a display.

In some embodiments, the video processor is configured to receive an external video signal, and perform video 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 signal that can be displayed or played on the direct display device 200.

In some embodiments, the video processor includes a demultiplexing module, a video decoding module, an image synthesis module, a frame rate conversion module, a display formatting module, and the like. The demultiplexing module is used for demultiplexing the input audio and video data stream. 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 is used for carrying out 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 graphic generator so as to generate an image signal for display. And the frame rate conversion module is used for converting the frame rate of the input video. And the display formatting module is used for converting the received video output signal after the frame rate conversion, and changing the signal to be in accordance with the signal of the display format, such as an output RGB data signal.

In some embodiments, the audio processor 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 noise reduction, digital-to-analog conversion, and amplification processing to obtain an audio signal that can be played in the speaker.

In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on display 260, and the user input interface receives the user input commands 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.

In some embodiments, a "user interface" is a media interface for interaction and information exchange between an application or operating system and a user that enables conversion between an internal form of information and a form that is acceptable to the user. A commonly used presentation form of the 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, a system of a display device may include a Kernel (Kernel), a command parser (shell), a file system, and an application program. The kernel, shell, and file system together make up the basic operating system structure that allows users to manage files, run programs, and use the system. After power-on, the kernel is started, kernel space is activated, hardware is abstracted, hardware parameters are initialized, and virtual memory, a scheduler, signals and interprocess communication (IPC) are operated and maintained. And after the kernel is started, loading the Shell and the user application program. The application program is compiled into machine code after being started, and a process is formed.

Referring to fig. 4, in some embodiments, the system is divided into four layers, which are an Application (Applications) layer (abbreviated as "Application layer"), an Application Framework (Application Framework) layer (abbreviated as "Framework layer"), an Android runtime (Android runtime) and system library layer (abbreviated as "system runtime library layer"), and a kernel layer from top to bottom.

In some embodiments, at least one application program runs in the application program layer, and the application programs may be windows (windows) programs carried by an operating system, system setting programs, clock programs or the like; or an application developed by a third party developer. In particular implementations, the application packages in the application layer are not limited to the above examples.

The framework layer provides an Application Programming Interface (API) and a programming framework for the application. The application framework layer includes a number of predefined functions. The application framework layer acts as a processing center that decides to let the applications in the application layer act. The application program can access the resources in the system and obtain the services of the system in execution through the API interface.

As shown in fig. 4, in the embodiment of the present application, the application framework layer includes a manager (Managers), a Content Provider (Content Provider), and the like, where the manager includes at least one of the following modules: an Activity Manager (Activity Manager) is used for interacting with all activities running in the system; the Location Manager (Location Manager) is used for providing the system service or application with the access of the system Location service; a Package Manager (Package Manager) for retrieving various information related to an application Package currently installed on the device; a Notification Manager (Notification Manager) for controlling display and clearing of Notification messages; a Window Manager (Window Manager) is used to manage the icons, windows, toolbars, wallpapers, and desktop components on a user interface.

In some embodiments, the activity manager is used to manage the lifecycle of the various applications as well as general navigational fallback functions, such as controlling exit, opening, fallback, etc. of the applications. The window manager is used for managing all window programs, such as obtaining the size of a display screen, judging whether a status bar exists, locking the screen, intercepting the screen, controlling the change of the display window (for example, reducing the display window, displaying a shake, displaying a distortion deformation, and the like), and the like.

In some embodiments, the system runtime layer provides support for the upper layer, i.e., the framework layer, and when the framework layer is used, the android operating system runs the C/C + + library included in the system runtime layer to implement the functions to be implemented by the framework layer.

In some embodiments, the kernel layer is a layer between hardware and software. As shown in fig. 4, the core layer includes at least one of the following drivers: audio drive, display driver, bluetooth drive, camera drive, WIFI drive, USB drive, HDMI drive, sensor drive (like fingerprint sensor, temperature sensor, pressure sensor etc.) and power drive etc..

The above embodiments describe the hardware/software architecture and functional implementation of the display device. Fig. 5 is a schematic diagram illustrating a connection state between a display device and an external storage device in this embodiment, as shown in fig. 5, in this embodiment, an external storage device 500 may be connected to a display device 200 through an external device interface 240. The external storage device 500 may be, for example, a usb disk, a mobile hard disk, a card reader, and the like. The external storage device 500 may store local media files of different resource types, such as video files, audio files, images, texts, documents, and the like, so as to display or play the media files stored in the storage device at the display device end.

In some exemplary implementations, after the external storage device 500 accesses the display device 200 through the external device interface 240, the user may access the connected external storage device 500 through a specified path/entry, and after clicking to open the external storage device 500, the UI automatically displays the root directory of the external storage device 500.

In an exemplary implementation manner, referring to fig. 6, fig. 6 is a schematic view of a display interface of a root directory of an external storage device in an embodiment of the present application, as shown in fig. 6, the root directory of the external storage device includes local media folders that have been saved by the storage device. Optionally, the local media folders are visually and vividly presented to the user for browsing in the form of preview images, such as folder icons, audio icons, thumbnails of videos and images, and so forth. To facilitate accurate identification and distinction of folders by the user, folder information, such as folder names, file media asset information, and the like, may be annotated below each preview image, wherein the file media asset information includes, but is not limited to, asset names, video profiles, asset formats (e.g., AVI, mp3, and the like), and the like, as relevant content.

In some application scenarios, for example, when a conference is held, a user may store file materials such as images, texts, and documents that need to be used by the conference in an external storage device such as a usb disk for convenience of carrying. In a conference site, after a user connects a USB flash disk with a display device, firstly, the user needs to click on the display device to open the USB flash disk, and then accesses the connected USB flash disk. And then, the user selects a target folder to be used according to a UI (user interface) of the U-packing directory displayed by the display equipment. And finally, selecting the target file to be used in the target folder by the user so as to display or play the target file on the display equipment. However, if the usb disk includes multiple folders, the user needs to search for the target folder in the multiple folders, which is tedious in operation and long in time consumption, and reduces the user experience.

In order to quickly find a target folder and improve the user experience, in some embodiments of the present application, a display device 200 is provided, which includes: a display 260, an external device interface 240, and a controller 250. The display 260 is configured to display a user interface, where the user interface may include a media asset picture stored in the external storage device 500. The external device interface 240 is an external storage device 500, and may be in the form of an interface such as a USB interface or an HDMI interface. The controller 250 may be configured to execute a file display method for automatically opening a target folder that a user needs to use when accessing the external storage device 500 and displaying file information in the target folder, so that the user can directly select a target file. The file display method executed by the controller 250 specifically includes the following steps:

in some embodiments, the user may turn on a designated functional mode at the display device 200 before connecting the external storage device 500 with the display device 200, so that the display device 200 may access the connected external storage device 500. For example, a user turns on a "conference mode" of the display device 200, see fig. 7, where fig. 7 is an interface diagram of the conference mode in the display device in the embodiment of the present application; as shown in fig. 7, the conference mode of the display apparatus 200 includes: screen projection, document management, video conference and application. The user's selection of the "document management" may implement functions of detecting whether the display apparatus 200 is connected to the external storage apparatus 500, inquiring the number of the connected external storage apparatuses 500, and accessing the external storage apparatus 500 connected to the display apparatus 200.

In an exemplary implementation, the display device 200 may determine whether the external storage device 500 is connected or disconnected by monitoring mount broadcasts and unmount broadcasts of the external storage device 500. Specifically, when the display device 200 receives the "android. When the display apparatus 200 receives the "android. intent. action. media _ unound" broadcast, it indicates that the external storage apparatus 500 is disconnected from the display apparatus 200.

In an exemplary implementation, the display device 200 may further detect the number of external storage devices 500 connected to the display device 200 according to the received mount broadcast and unmount broadcast of the external storage device 500. Specifically, each time the display device 200 receives the mount broadcast and the mount broadcast of the external storage device 500, it usually obtains the CurrentLocalDiskNumber (the total number of currently connected connections) of the external storage device 500 after 300ms, obtains the LastLocalDiskNumber (the number of last connections) of the external storage device 500, and then calculates the difference between the CurrentLocalDiskNumber and the LastLocalDiskNumber to obtain the number of currently connected external storage devices 500. If the calculated difference is 1, it indicates that only one external storage device 500 is connected to the display device 200. If the calculated difference is greater than 1, it indicates that the display device 200 is connected with a plurality of external storage devices 500 at the same time.

In some embodiments, if the display apparatus 200 detects that only one external storage apparatus 500 is connected to the external device interface 240, root directory file information of the external storage apparatus 500 is acquired. The root directory in the external storage device 500 refers to the top level directory of the logical drive, and the root directory is relative to the child directories. The root directory is created at the time of file system creation, and its purpose is to store directory entries of sub-directories (also called folders) or files. In this embodiment, the root directory file information includes a root directory folder name list, where the root directory folder name list includes names of all folders in the root directory file of the external storage device 500. Referring to fig. 8, fig. 8 is a schematic interface diagram of a display device displaying root directory file information in an embodiment of the present application. As shown in fig. 8, the root directory file of the external storage device 500 includes: conference profile folders, personal profile folders, system data folders, movie folders, game folders, and download profile folders. The user can create folders with different names according to the use requirement so as to manage a large number of files conveniently.

In an exemplary implementation manner, the display device 200 may open the external storage device 500 by sending transition broadcast, and obtain root directory file information of the external storage device 500. For example, the display device 200 first obtains the deviceId (device identification number) of the currently newly connected external storage device 500 by searching a database of the local external storage device. When the display device 200 starts the conference mode, the display device 200 may pull up the folder of the external storage device 500 by sending a transition broadcast carrying the deviceId and a conference mode flag (identifier) to the media center, and acquire root directory file information.

In some embodiments, the display device 200 determines whether the external storage device 500 includes the target folder according to the root directory folder name list. In the embodiment of the application, the target folder is a folder preset by a user and required to be used. In practical applications, a user may preset a folder with a specific name as a target folder. For example, the user sets a folder named "meeting material" as the target folder, i.e., the folder named "meeting material" is described as the folder that the user needs to use. The name of the folder is unique as an identification of the folder. The folder with a specific name can be distinguished from other folders by the name of the folder, and the folder with the unique specific name can be found in a large number of folders. Accordingly, the display device 200 can determine whether the target folder is included in the external storage device 500 according to the root directory folder name list and the name of the target folder.

In some embodiments, the display device 200 may determine whether the external storage device 500 includes the target folder according to the root directory folder name list in the following manner. First, the display apparatus 200 acquires the name of the target folder. Then, the display device 200 traverses the root directory folder name list to find whether a root directory folder having the same name as the target folder exists; if there is a root directory folder with the same name as the target folder, the root directory folder with the same name is the target folder.

Taking the root directory folder of the external storage device shown in fig. 8 as an example, when the user sets the name of the target folder to "meeting materials". The display device 200, by traversing the root directory folder name: "meeting data", "personal data", "system data", "movie", "game" and "downloaded data" can be found out to a root directory folder named "meeting data", which is the target folder.

In some embodiments, if the target folder is included in the external storage device 500, the display device 200 acquires file information within the target folder. The target folder includes a target file that the user needs to use, and the target file may be one or multiple. Therefore, the target file is convenient for a user to quickly find. The display apparatus 200 needs to acquire all file information within the target folder. The file information in the target folder comprises information such as name, size, format and path of the file.

In an exemplary implementation, when the media center receives the transition broadcast, the controller 250 first determines whether the display device 200 initiates an open folder broadcast in the conference mode according to the deviceId and the conference mode flag. If the transition broadcast contains the deviceId, the controller 250 filters and loads the file of the 500 root directory of the external storage device corresponding to the deviceId according to the file type supported by the conference mode, and reports the searched file information set of the 500 root directory of the external storage device.

If the transition broadcast carries the conference mode flag, the controller 250 traverses all folder entries of the file information set, matches the folder name of each entry with the name of the "conference material", loads all file information of the type supported by the folder according to the URI (Uniform Resource Identifier) of the folder if the folder of the "conference material" exists, and transmits the loaded file information to an adapter to display all the supported file information of the folder after the loading is finished. Meanwhile, the path position of the 'meeting material' folder under the root directory is saved, the folder path position is set as the current path, the upper-level directory of the folder, namely the root directory, is added into the history directory, so that a return key is pressed under the 'meeting material' directory, the root directory can be returned through the history directory, and the focus is placed on the 'meeting material' folder of the root directory through the saved path position.

In some embodiments, after the display device 200 acquires the file information in the target folder, a file information display window for displaying the file information in the target folder is created in the user interface. Therefore, the user can browse the files in the target folder intuitively and find the files needed to be used quickly. The specific form of the file information in the target folder displayed by the file information display window may be a file list or a file thumbnail, and the like, which is not specifically limited in the present application. Referring to fig. 9 and 10, fig. 9 is a schematic view of a file information display window for displaying file information in a file list form in the embodiment of the present application, and fig. 10 is a schematic view of a file information display window for displaying file information in a thumbnail form in the embodiment of the present application.

As shown in fig. 9, the file information display window displays the file information in the target folder in the form of a file list, specifically including the file name, modification time, file type, and file size of each file in the meeting material folder. The mode of displaying the file information by the file list has the advantage of displaying more related information of the file, so that a user can conveniently select the information according to different types, sizes and the like of the file.

As shown in fig. 10, the file information display window displays the file information in the destination folder in the form of a thumbnail of a file, including a thumbnail of a file and a file name of each file in the conference material folder. The mode of displaying the file information by the file thumbnail can enable a user to browse the files more intuitively, and the main content of the files can be obtained through the file thumbnail so as to be convenient for selection according to the content of the files.

According to the technical scheme, the display device is provided. The display device firstly obtains a name list of a root directory folder in the external storage device connected with the display device, then judges whether the external storage device comprises a target folder required to be used by a user according to the name list of the root directory folder, if the external storage device comprises the target folder, the target folder is automatically opened, and file information in the target folder is displayed, so that the user can directly select a target file. The display device provided by the application can automatically open the folder which needs to be used by the user in the external storage device, so that the user can directly browse the files conveniently, the files which need to be used can be quickly found, and the use experience of the user is improved.

In some embodiments, the user may select a target file to be used according to file information in a target folder displayed in the file information display window, and input a control instruction for selecting the target file. The user may input a control instruction for selecting a target file through the control device 100 such as a remote controller, or, if the display 260 is a touch panel, the user may also input a control instruction for selecting a target file through the display 260. Each control instruction may correspond to one target file, and may also correspond to a plurality of selected target files. The display device 200 acquires a control instruction for selecting a target file input by a user, acquires a target file corresponding to the control instruction in response to the control instruction, and opens the target file.

In some embodiments, the display device 200 responds to the control instruction, and the process of opening the target file comprises the following steps: first, the display apparatus 200 acquires format information of a target file. The display apparatus 200 may obtain format information of the target file according to file information in the target folder, where the format information may be mp4, rmvb, avi, mkv, txt, doc, xls, ppt, pdf, and the like. Then, the display apparatus 200 determines whether there is an application that can open the object file according to the format information of the object file. For example, if the target file is in the mp4 format, the display apparatus 200 determines whether there is a video player that can open the mp4 format, and if the target file is in the pdf format, the display apparatus 200 determines whether there is a document viewer that can open the pdf format.

And if the application program capable of opening the target file exists, opening the target file through the application program. For example, the user selects "meeting document 1" file in the meeting materials folder, and the file type of the "meeting document 1" file is Word document and is in doc format. If there is a document editor in the display apparatus 200 that can open the doc format, the "conference document 1" file is opened with the document editor. Referring to fig. 11, fig. 11 is a schematic view of a display interface of a display device opening a target file in the embodiment of the present application, and as shown in fig. 11, a document editor supporting doc format may open a "conference document 1" file, and may display and edit the "conference document 1" file.

If no application program capable of opening the target file exists, the application program supporting the target file format information is downloaded. For example, when the display apparatus 200 does not detect an application program that can open the object file, an application store is opened, and the user is guided to download and install the application program that supports the object file format information. Then, the target file is opened using the downloaded application program. Referring to fig. 12, fig. 12 is a schematic view of a display interface of a display device for guiding a user to download an application program in an embodiment of the present application, and as shown in fig. 12, when an application program that can open a conference document 1 does not exist in the display device 200, a guidance download window may be created in the user interface to guide the user to open an application store to download the application program. As an example, the content of the guidance download window is "conference document 1 cannot be opened, application store is opened, and third-party application is installed". According to the actual application condition, the text content in the guide downloading window can be modified adaptively.

In some embodiments, if the target folder is not included in the external storage device 500, the user is required to manually select the folder and the file to be used in the external storage device 500. Therefore, in order to facilitate the user to select a folder, the display device 200 creates a root directory folder display window in the user interface, the root directory folder display window being used to display root directory folder information of the external storage device 500. The root directory folder information includes a list of root directory folder names, the size of the root directory folder, and the modification time of the root directory folder. Referring to fig. 13, fig. 13 is a schematic view of a display interface of a root directory folder display window in an embodiment of the present application, and as shown in fig. 13, a root directory folder of an external storage device includes: work material folders, personal material folders, study material folders, music folders, photo folders, and movie folders. When the target folder set by the user is the "meeting data" folder, it can be seen that the external storage device does not include the "meeting data" folder, and a situation that the user does not place the file to be used in the previously preset target folder during the current use may occur. At this time, the user is required to select the folder to be used according to the displayed root directory folder of the external storage device.

In some embodiments, if the display apparatus 200 detects that a plurality of external storage apparatuses 500 are simultaneously connected to the external device interface 240, the user is required to select which external storage apparatus 500 is required to be used. It should be noted that, in this embodiment, the connection of multiple external storage devices 500 at the same time may include a case where one external storage device 500 is connected to the display device 200, but the external storage device 500 includes multiple partitions. For example, because the storage space of the mobile hard disk is large, the user can divide the mobile hard disk into different partitions such as "system a", "work material B", "learning material C", and "game D" according to the use requirement. When the mobile hard disk is connected to the display device 200, it can be detected that 4 external storage devices are simultaneously connected. To facilitate the user to select which external storage device (or partition) to use, referring to fig. 14, fig. 14 is a schematic display interface diagram of a display window of the external storage device in the embodiment of the present application, as shown in fig. 14, the display device 200 detects that four external storage devices "system a", "work data B", "learning data C", and "game D" are simultaneously connected, and at this time, the user is required to select which hard disk needs to be used. The display device 200 creates an external storage device display window in the user interface, and the external storage device display window may display a list of external storage devices. Therefore, the user can quickly browse and select the external storage equipment required to be used.

In practical applications, a user may connect a plurality of external storage devices 500 to the display device 200 in sequence, and generally thinks that the last connected external storage device 500 is the external storage device 500 that the user currently wants to use. In some embodiments, if the display apparatus 200 detects that the external device interface 240 sequentially connects a plurality of external storage apparatuses 500, the newly connected external storage apparatus 500 is turned on. Specifically, the display device 200 obtains the connection time of each external storage device 500 that has been connected, and searches for the external storage device 500 with the shortest connection time as a target external storage device, that is, an external storage device that a user needs to use.

In some embodiments, when the user turns on a specific mode function of the display apparatus 200, for example, turns on a conference mode of the display apparatus 200, the display apparatus 200 enters a state of detecting whether the external device interface 240 is connected to the external storage apparatus 500. If the display apparatus 200 does not detect that the external storage apparatus 500 is connected to the external device interface 240, it guides the user to connect the external storage apparatus 500 and introduces a function. For example, referring to fig. 15, fig. 15 is a schematic view of a display interface of a display device for guiding a user to connect to an external storage device in an embodiment of the present application, as shown in fig. 15, in a conference mode, if there is no external storage device 500, a window for guiding the user to connect is displayed on the display device 200. For example, the content for guiding the user to connect to the window includes "please connect an external storage device such as a usb disk or a mobile hard disk to an external device interface of the device. The device can automatically open the root directory by connecting the U disk and the mobile hard disk in a conference mode, and is convenient and rapid to browse documents. If the 'meeting data' folder is contained in the U disk and the mobile hard disk root directory, the folder can be automatically opened, and the user can be conveniently distinguished from other files. In practical application, according to the use requirement, the text content of the guide user connection window can be adaptively modified.

The above UI is an example of a display device, and other types of terminal devices and/or UI of display devices embodied in the aspects of interface display and information acquisition are substantially similar to the above UI, and are not listed here. The UI interface provided in the present application is merely exemplary, and is subject to practical application and design.

According to the above embodiments, the present application further provides an interface display method, which can be executed on the display device side, where an execution subject of the method is a controller in the display device. Referring to fig. 16, fig. 16 is a schematic flowchart of a document display method in an embodiment of the present application, where the method includes the steps shown in fig. 16:

s101, if the fact that the external device interface is only connected with one external storage device is detected, a root directory folder name list of the external storage device is obtained.

S102, judging whether the external storage equipment comprises a target folder or not according to the name list of the root directory folder, wherein the target folder is a folder which is preset by a user and needs to be used.

S103, if the external storage device comprises the target folder, file information in the target folder is obtained.

And S104, creating a file information display window in the user interface, wherein the file information display window is used for displaying the file information in the target folder.

According to the technical scheme, the display method is provided. The method comprises the following steps: the method comprises the steps of firstly obtaining a name list of a root directory folder in an external storage device connected with a display device, then judging whether the external storage device comprises a target folder needed by a user according to the name list of the root directory folder, if the external storage device comprises the target folder, automatically opening the target folder, and displaying file information in the target folder, so that the user can directly select a target file. The display method provided by the application can automatically open the folder which needs to be used by the user in the external storage device, so that the user can directly browse the files conveniently, the files which need to be used can be quickly found, and the use experience of the user is improved.

In some embodiments, in step S102, it is determined whether the external storage device includes the target folder according to the root directory folder name list, referring to fig. 17, where fig. 17 is a flowchart illustrating a method for determining whether the external storage device includes the target folder in the embodiment of the present application, and as shown in fig. 17, the method further includes:

s201, the name of the target folder is obtained.

S202, traversing the name list of the root directory folder to find whether the root directory folder with the same name as the target folder exists.

S203, if there is a root directory folder with the same name as the target folder, the root directory folder with the same name is the target folder.

In some embodiments, after the creating the file information display window in the user interface in step S104, the method further includes:

and S105, acquiring a control instruction which is input by the user and selects a target file according to the file information, wherein the target file is a file required to be used by the user.

And S106, responding to the control instruction, and opening the target file.

In some embodiments, referring to fig. 18, fig. 18 is a flowchart illustrating a method for opening a target file in an embodiment of the present application. As shown in fig. 18, in step S106, in response to the control instruction, the specific method for opening the target file includes the following steps:

s301, acquiring format information of the target file.

S302, whether an application program supporting format information exists is detected.

S303, if the application program exists, opening the target file through the application program.

S304, if the application program does not exist, downloading the target application program, wherein the target application program supports the format information of the target file.

S305, opening the target file through the target application program.

In some embodiments, in step S102, after determining whether the external storage device includes the target folder according to the root directory folder name list, the method further includes: s107, if the external storage device does not comprise the target folder, a root directory folder display window is created in the user interface, and the root directory folder display window is used for displaying a root directory folder name list.

In some embodiments, the method further comprises: if the external device interface is detected to be simultaneously connected with a plurality of external storage devices, acquiring an external storage device list; and creating an external storage device display window in the user interface, wherein the external storage device display window is used for displaying an external storage device list.

In some embodiments, the method further comprises: if the external device interface is detected to be sequentially connected with a plurality of external storage devices, acquiring a connection time list, wherein the connection time list comprises connection times of the plurality of external storage devices; searching a target external storage device according to the connection time list, wherein the target external storage device is the external storage device with the shortest connection time; and acquiring a root directory folder name list of the target external storage equipment.

In some embodiments, the method further comprises: and if the external storage equipment is not connected with the external device interface, generating a guide information window, wherein the guide information window is used for guiding a user to connect the external storage equipment.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A display device, comprising:

a display configured to display a user interface;

an external device interface configured to connect to an external storage apparatus;

a controller configured to:

if the external device interface is detected to be connected with only one external storage device, acquiring a root directory folder name list of the external storage device;

judging whether the external storage device comprises a target folder or not according to the root directory folder name list, wherein the target folder is a folder preset by a user and required to be used;

if the external storage equipment comprises the target folder, acquiring file information in the target folder;

2. The display device according to claim 1, wherein in the step of determining whether the external storage device includes the target folder according to the root directory folder name list, the controller is further configured to:

acquiring the name of the target folder;

traversing the name list of the root directory folder to find whether the root directory folder with the same name as the target folder exists or not;

and if the root directory folder with the same name as the target folder exists, the root directory folder with the same name is the target folder.

3. The display device according to any one of claims 1 or 2, wherein after the step of creating a file information display window in the user interface, the controller is further configured to:

acquiring a control instruction which is input by a user and selects a target file according to the file information, wherein the target file is a file required to be used by the user;

and responding to the control instruction, and opening the target file.

4. The display device according to claim 3, wherein in the step of opening the object file in response to the control instruction, the controller is further configured to:

acquiring format information of the target file;

detecting whether an application program supporting the format information exists;

and if the application program exists, opening the target file through the application program.

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

if the application program does not exist, downloading a target application program, wherein the target application program supports the format information;

and opening the target file through the target application program.

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

and if the external storage equipment does not comprise the target folder, creating a root directory folder display window in the user interface, wherein the root directory folder display window is used for displaying the name list of the root directory folder.

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

if the external device interface is detected to be simultaneously connected with a plurality of external storage equipment, acquiring the external storage equipment list;

and creating an external storage device display window in the user interface, wherein the external storage device display window is used for displaying the external storage device list.

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

if the external device interface is detected to be sequentially connected with a plurality of external storage equipment, acquiring a connection time list, wherein the connection time list comprises connection time of the plurality of external storage equipment;

searching a target external storage device according to the connection time list, wherein the target external storage device is the external storage device with the shortest connection time;

and acquiring a root directory folder name list of the target external storage equipment.

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

and if the external storage equipment is not connected with the external device interface, generating a guide information window, wherein the guide information window is used for guiding a user to connect the external storage equipment.

10. A file display method is applied to display equipment, the display equipment is connected with external storage equipment through an external device interface, and the file display method comprises the following steps: