Method for updating a channel list on a display device and display device

Abstract

The application provides a display device and a method for updating a channel list of the display device. When a user switches to a target channel for watching, the display device can automatically detect whether current signal content accessed by the target channel is successfully played, and determine a current signal type accessed by the target channel when the current signal content is not successfully played. When the current signal type is an analog television signal, all digital television signals corresponding to a frequency point of the analog television signal are automatically searched. Finally, the display device adds channels corresponding to all the digital television signals to the channel list, thereby completing the updating operation of the channel list. When the television signal type of a channel selected by the user for watching on the display device changes, the user does not need to manually search for corresponding digital television signals to complete the updating of the channel list. Therefore, the updating method of the channel list reduces the complexity of user operation and improves the experience of the user for watching the display device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a method for updating a channel list on a display device and the display device. BACKGROUND

[0002] With the popularization of digital television, many countries use a mixed network of analog television signals and digital television signals to provide television signals. Specifically, a frequency point for transmitting analog television signals is vacated to be used for digital television signals. For users, a channel search operation is usually performed at the first boot, that is, the type of signal used on a certain channel is determined. Subsequently, the channel search operation is usually not frequently performed during the use of the display device, but the replacement of television signals continues. At this time, the following situations may occur: 1. A frequency point occupied by an analog television signal before channel search changes to a digital television signal; 2. A frequency point occupied by an analog television signal before channel search changes to a new generation television signal conforming to the ATSC 3.0 standard; 3. A frequency point occupied by a digital television signal before channel search changes to a new generation television signal conforming to the ATSC 3.0 standard.

[0003] After the first channel search, the frequency point information is stored by the display device. However, the signal in the channel may change in the subsequent process. When the user selects to play a certain channel, the display device locks the frequency according to the previously saved frequency point information, and then analyzes the audio and video data corresponding to the frequency point. However, if the signal on the frequency point changes, the display device cannot analyze the audio and video data, and thus the signal content cannot be played out, and the display device prompts that there is no signal in the channel.

[0004] The data types of analog television signals and digital television signals are different, and in the current display devices such as televisions, the same decoding method cannot be used to decode two different television signals. When the signal on a frequency point changes and the type of the signal also changes, the display device cannot listen to the changed television signal of another type. In this case, the user needs to manually select the channel update or signal search. This method is not only complicated to operate, but also affects the user experience of watching the display device. SUMMARY

[0005] The present application provides a method for updating a channel list on a display device and the display device to solve the problem that when the type of a television signal on a channel selected by a user on a display device changes, the user needs to manually search for the signal to update the channel list.

[0006] In a first aspect, the present application provides a display device, comprising: a display; a controller connected with the display, the controller being configured to: in response to an operation of a user switching a channel, control the display to play current signal content accessed by a target channel; determine whether the current signal content is played successfully; if the current signal content is not played successfully, determine a current signal type accessed by the target channel; if the current signal type is an analog television signal, acquire a list of digital television signals according to a frequency point where the analog television signal is located; wherein each digital television signal in the list of digital television signals corresponds to a channel; and update a channel list of the display device according to the list of digital television signals.

[0007] The display device provided by the present application can automatically detect whether current signal content accessed by a target channel is played successfully when the user switches to the target channel for watching, and determine a current signal type accessed by the target channel in the case that the current signal content is not played successfully. When the current signal type is an analog television signal, all digital television signals corresponding to the analog television signal at the frequency point are automatically searched. Finally, the display device adds channels corresponding to all the digital television signals to the channel list, thereby completing the updating operation of the channel list. When the user selects a channel on the display device for watching, the type of television signal at the channel changes, and the user does not need to manually search for the corresponding digital television signal to complete the updating operation of the channel list. Therefore, the updating method of the channel list reduces the complexity of the user operation and improves the user experience of watching the display device.

[0008] In some implementable manners, the controller is further configured to: if the current signal type is an analog television signal, acquire a preset frequency point bandwidth of a region where the display device is located; determine a frequency range of digital television signals according to the frequency point where the analog television signal is located and the preset frequency point bandwidth; and form a list of digital television signals by using all the digital television signals existing in the frequency range.

[0009] In some implementable manners, the controller is further configured to: after acquiring the list of digital television signals according to the frequency point where the analog television signal is located, control the display to display a prompt page; the prompt page is used to prompt the user whether to update the channel list; and in response to an operation of the user selecting to update the channel list, add channels corresponding to all the digital television signals in the list of digital television signals to an existing channel list of the display device.

[0010] In some implementable manners, the controller is further configured to: after acquiring the list of digital television signals according to the frequency point where the analog television signal is located, control the display to play content of a first digital television signal in the list of digital television signals.

[0011] In some embodiments, the controller is further configured to: if the current signal type is an ATSC 1.0 digital television signal conforming to the ATSC 1.0 standard, acquire an ATSC 3.0 digital television signal list conforming to the ATSC 3.0 standard corresponding to the current signal frequency point; control the display to display a prompt page; the prompt page is used to prompt the user whether to update the channel list; in response to the user selecting the operation of updating the channel list, add the channels corresponding to all ATSC 3.0 digital television signals in the ATSC 3.0 digital television signal list to the existing channel list of the display device.

[0012] In some embodiments, the controller is further configured to: after acquiring the ATSC 3.0 digital television signal list conforming to the ATSC 3.0 standard corresponding to the current signal frequency point, control the display to play the content of the first ATSC 3.0 digital television signal in the ATSC 3.0 digital television signal list.

[0013] In some embodiments, the controller is further configured to: if the current signal type is an analog television signal, and if no digital television signal list is acquired according to the frequency point where the analog television signal is located, control the display to display a prompt that the target channel has no signal.

[0014] In some embodiments, the controller is further configured to: after the display displays the prompt page, if the user does not select to update the channel list on the prompt page, control the display to display a prompt that the target channel has no signal.

[0015] In a second aspect, the present application further provides a method for updating a channel list on a display device, the method comprising: in response to the user switching channels, controlling the display to play the content of the current signal accessed by the target channel; determining whether the content of the current signal is successfully played; if the content of the current signal is not successfully played, determining the type of the current signal accessed by the target channel; if the current signal type is an analog television signal, acquiring a digital television signal list according to the frequency point where the analog television signal is located; wherein each digital television signal in the digital television signal list corresponds to a channel; and updating the channel list of the display device according to the digital television signal list.

[0016] The method for updating a channel list on a display device according to the second aspect of the present application can be applied to the display device according to the first aspect of the present application and is specifically implemented by the controller of the display device. Therefore, the beneficial effects that can be achieved by the method for updating a channel list on a display device according to the second aspect of the present application are the same as those of the display device according to the first aspect of the present application, which will not be described here again. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

[0018] Figure 1 A schematic diagram of a use scenario of a display device according to some embodiments is shown;

[0019] Figure 2 A hardware configuration block diagram of the control device 100 according to some embodiments is shown;

[0020] Figure 3 A hardware configuration block diagram of the display device 200 according to some embodiments is shown;

[0021] Figure 4 A software configuration diagram in the display device 200 according to some embodiments is shown;

[0022] Figure 5 A schematic diagram of displaying a no-signal prompt on the display device 200 according to some embodiments is shown;

[0023] Figure 6 A first flowchart of a channel list updating method on the display device 200 according to some embodiments is shown;

[0024] Figure 7 A schematic diagram of a channel selection page on the display device 200 according to some embodiments is shown;

[0025] Figure 8 A second flowchart of a channel list updating method on the display device 200 according to some embodiments is shown;

[0026] Figure 9 A schematic diagram of a prompt page on the display device 200 according to some embodiments is shown;

[0027] Figure 10 A flowchart of obtaining a digital television signal list on the display device 200 according to some embodiments is shown;

[0028] Figure 11 A third flowchart of a channel list updating method on the display device 200 according to some embodiments is shown. DETAILED DESCRIPTION

[0029] For the purpose of clarity and a more precise understanding of the present application, the exemplary embodiments of the present application will be described in detail with reference to the accompanying drawings. It should be apparent to those having ordinary skill in the art that the described exemplary embodiments are merely exemplary and are not intended to limit the scope of the present application.

[0030] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the embodiments described next, and is not intended to limit the embodiments of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and general meanings.

[0031] The terms "first", "second", "third", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar or like objects or entities, and do not necessarily mean a specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchanged as appropriate.

[0032] The terms "include" and "have" and any variations thereof are intended to cover but not exclusive inclusion, for example, a product or device including a series of components does not necessarily limit to all components clearly listed, but can include other components not clearly listed or inherent to such products or devices.

[0033] The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or a combination of hardware and / or software code capable of performing a function associated with that element.

[0034] Figure 1 A schematic diagram showing a use scenario of a display device according to some embodiments is shown. As shown, a user can operate the display device 200 through a smart device 300 or a control apparatus 100. Figure 1

[0035] In some embodiments, the control apparatus 100 can be a remote controller, and the communication between the remote controller and the display device includes infrared protocol communication or Bluetooth protocol communication, and other short-distance communication methods, to control the display device 200 through wireless or wired means. The user can input user instructions through buttons on the remote controller, voice input, control panel input, etc., to control the display device 200.

[0036] In some embodiments, a smart device 300 (such as a mobile terminal, tablet computer, computer, notebook computer, etc.) can also be used to control the display device 200. For example, an application running on the smart device is used to control the display device 200.

[0037] ​In some embodiments, the display device 200 can also be controlled in ways other than the control device 100 and the smart device 300, for example, the display device 200 can directly receive the user's voice instruction control through the voice instruction receiving module configured inside the display device 200, or the user's voice instruction control can be received through the voice control device set outside the display device 200.

[0038] In some embodiments, the display device 200 also communicates data with the server 400. The display device 200 can be communicatively connected through a local area network (LAN), a wireless local area network (WLAN), and other networks. The server 400 can provide various content and interactions to the display device 200. The server 400 can be a cluster or multiple clusters, and can include one or more types of servers.

[0039] Figure 2 A hardware configuration block diagram of the control device 100 according to some embodiments is shown. As shown, the control device 100 includes a controller 110, a communication interface 130, a user input / output interface 140, a memory, a power supply. The control device 100 can receive the user's input operation instruction, and convert the operation instruction into an instruction that the display device 200 can recognize and respond to, acting as an intermediary between the user and the display device 200. Figure 2

[0040] Figure 3 A hardware configuration block diagram of the display device 200 according to some embodiments is shown.

[0041] In some embodiments, the display device 200 includes at least one of a tuner and 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, and a user interface.

[0042] In some embodiments, the controller includes a processor, a video processor, an audio processor, a graphics processor, a RAM, a ROM, a first interface to an n-th interface for input / output.

[0043] In some embodiments, the display 260 includes a display screen component for presenting a picture, and a driving component for driving image display, a component for receiving image signals originating from the controller output, and displaying video content, image content, and menu control interface, and a user control UI interface.

[0044] In some embodiments, the display 260 can be a liquid crystal display, an OLED display, and a projection display, and can also be a projection device and a projection screen.

[0045] ​In some embodiments, the communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example, the communicator can include at least one of a Wifi module, a Bluetooth module, a wired Ethernet module, other network communication protocol chips or near field communication protocol chips, and an infrared receiver. The display device 200 can establish transmission and reception of control signals and data signals with the external control device 100 or the server 400 through the communicator 220.

[0046] In some embodiments, the user interface can be used to receive control signals of the control device 100 (e.g., an infrared remote controller).

[0047] In some embodiments, the detector 230 is used to collect signals of the external environment or interaction with the outside. For example, the detector 230 includes a light receiver for collecting ambient light intensity, or an image collector such as a camera for collecting external environmental scenes, user attributes or user interaction gestures, or a sound collector such as a microphone for receiving external sounds.

[0048] In some embodiments, the external device interface 240 can include, but is not limited to, any one or more of the following: a high-definition multimedia interface (HDMI), an analog or digital high-definition component input interface (component), a composite video input interface (CVBS), a USB input interface (USB), an RGB port, etc. It can also be a composite input / output interface formed by multiple interfaces described above.

[0049] In some embodiments, the tuner demodulator 210 receives broadcast television signals through wired or wireless reception, and demodulates audio and video signals and EPG data signals from multiple wireless or wired broadcast television signals.

[0050] In some embodiments, the controller 250 and the tuner demodulator 210 can be located in different split devices, i.e., the tuner demodulator 210 can also be in an external device of the main device where the controller 250 is located, such as an external set-top box, etc.

[0051] In some embodiments, the controller 250 controls the operation of the display device and responds to user operations by storing various software control programs on the memory. The controller 250 controls the overall operation of the display device 200. For example, in response to receiving a user command for selecting a UI object displayed on the display 260, the controller 250 can perform an operation related to the object selected by the user command.

[0052] In some embodiments, the object can be any one of selectable objects, such as a hyperlink, an icon or other operable control. The operation related to the selected object can be to display a page connected to the hyperlink, a document, an image, etc., or to execute a program corresponding to the icon.

[0053] In some embodiments, the controller includes 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), a ROM (Read-Only Memory), a first interface to an n-th interface for input / output, a communication bus, etc.

[0054] The CPU processor is configured to execute operating system and application program instructions stored in the memory, and to execute various application programs, data and content according to various interactive instructions received from external input, so as to finally display and play various audio and video content. The CPU processor can include multiple processors. For example, it can include one main processor and one or more sub-processors.

[0055] In some embodiments, the graphics processor is configured to generate various graphical objects, such as icons, operation menus, and user input instruction display graphics, etc. The graphics processor includes an operator configured to perform operations by receiving various interactive instructions from the user input, and to display various objects according to display attributes; and a renderer configured to render various objects obtained based on the operator, and the rendered objects are used for display on the display.

[0056] In some embodiments, the video processor is configured to receive external video signals, and to perform video processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, image synthesis, etc. according to standard encoding and decoding protocols of the input signals, so as to obtain signals directly displayable on the device 200.

[0057] In some embodiments, the video processor includes a demultiplexing module, a video decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, etc. The demultiplexing module is configured to perform demultiplexing processing on the input audio / video data stream. The video decoding module is configured to process the demultiplexed video signal, including decoding and scaling processing, etc. The image synthesizing module, such as an image synthesizer, is configured to perform superimposition and mixing processing on the video image after scaling processing and the GUI signal generated by the graphics generator according to the user input or itself, to generate an image signal for display. The frame rate conversion module is configured to convert the input video frame rate. The display formatting module is configured to change the output signal of the video after frame rate conversion to a signal conforming to the display format, such as an output RGB data signal.

[0058] In some embodiments, the audio processor is configured to receive external audio signals, perform decompression and decoding according to the standard codec protocol of the input signal, and perform noise reduction, digital-to-analog conversion, and amplification processing, etc., to obtain a sound signal that can be played in a loudspeaker.

[0059] In some embodiments, the user can input a user command through a graphical user interface (GUI) displayed on the display 260, and the user input interface receives the user input command through the graphical user interface (GUI). Alternatively, the user can input a 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 a sensor.

[0060] In some embodiments, the "user interface" is a medium interface for interaction and information exchange between an application program or an operating system and a user, which realizes the conversion between the internal form of information and the form acceptable to the user. The commonly used form of user interface is a graphical user interface (GUI), which refers to a user interface related to computer operation displayed in a graphical manner. It can be an icon, window, control, etc. interface element displayed in the display screen of an electronic device, wherein the control can include an icon, button, menu, tab, text box, dialog box, status bar, navigation bar, Widget, etc. visual interface element.

[0061] In some embodiments, the system of the display device can include a kernel, a shell, a file system and an application. The kernel, the shell and the file system together form a basic operating system structure, which allows a user to manage files, run programs and use the system. After power on, the kernel starts, activates the kernel space, abstracts hardware, initializes hardware parameters, etc., runs and maintains virtual memory, a scheduler, signals and inter-process communication (IPC). After the kernel starts, the shell and user applications are loaded. The application is compiled into machine code after starting, forming a process.

[0062] Referring to Figure 4 In some embodiments, the system is divided into four layers, from top to bottom, the application layer (referred to as "application layer" for short), the application framework layer (referred to as "framework layer" for short), the Android runtime and system library layer (referred to as "system runtime library layer" for short), and the kernel layer.

[0063] In some embodiments, at least one application program is running in the application layer, which can be a window program, a system setting program or a clock program provided by the operating system, etc.; or an application program developed by a third-party developer. In specific implementation, the application package in the application layer is not limited to the above examples.

[0064] The framework layer provides application programming interface (API) and programming framework for the application. The application framework layer includes some pre-defined functions. The application framework layer is equivalent to a processing center, which decides the action of the application in the application layer. The application can access the resources in the system and obtain the services of the system through the API interface in the execution.

[0065] As Figure 4As shown, the application framework layer in this embodiment includes managers, providers, or content providers, etc., wherein the managers include at least one of the following modules: Activity Manager, used to interact with all activities running in the system; Location Manager, used to provide system services or applications with access to system location services; Package Manager, used to retrieve various information related to application packages currently installed on the device; Notification Manager, used to control the display and clearing of notification messages; and Window Manager, used to manage icons, windows, toolbars, wallpapers, and desktop widgets on the user interface.

[0066] In some embodiments, the Activity Manager manages the lifecycle of individual applications and common navigation and back functions, such as controlling application exit, opening, and back actions. The Window Manager manages all window programs, such as obtaining the screen size, determining if a status bar is present, locking the screen, capturing the screen, and controlling display window changes (e.g., shrinking the display window, shaking the display, distorting the display, etc.).

[0067] In some embodiments, the system runtime library layer provides support for the upper layer, namely the framework layer. When the framework layer is used, the Android operating system runs the C / C++ libraries contained in the system runtime library layer to implement the functions that the framework layer needs to perform.

[0068] In some embodiments, the kernel layer is a layer between hardware and software. For example... Figure 4 As shown, the kernel layer includes at least one of the following drivers: audio driver, display driver, Bluetooth driver, camera driver, WIFI driver, USB driver, HDMI driver, sensor driver (such as fingerprint sensor, temperature sensor, pressure sensor, etc.), and power driver.

[0069] On the aforementioned display device 200, users can watch television channels and various media resources from various applications. When a user watches a television channel, the television signal can be either an analog television signal or a digital television signal.

[0070] With the popularization of digital television, many countries use the mixed network mode of analog television signal and digital television signal to provide television signals. Specifically, a certain frequency point for transmitting analog television signals is vacated for digital television signals. For users, a channel search operation is usually performed at the first boot, that is, the type of signal used on a certain channel is determined. Subsequently, the channel search operation is usually not frequently performed in the process of using the display device, but the replacement of television signals continues, and the following situations may occur: 1. A certain frequency point is occupied by an analog television signal during the previous channel search, but becomes a digital television signal subsequently; 2. A certain frequency point is occupied by an analog television signal during the previous channel search, but becomes a new generation of television signal conforming to the ATSC 3.0 standard subsequently; 3. A certain frequency point is occupied by a digital television signal during the previous channel search, but becomes a new generation of television signal conforming to the ATSC 3.0 standard subsequently.

[0071] After the first channel search, the frequency point information is stored by the display device. However, the signal in the channel may change in the subsequent process. When the user selects to play a certain channel, the display device locks the frequency according to the previously saved frequency point information, and then analyzes the audio and video data corresponding to the frequency point. However, if the signal on the frequency point changes, the display device cannot analyze the audio and video data, and thus the signal content cannot be played out, and the display device prompts that there is no signal in the channel.

[0072] The data types of analog television signals and digital television signals are different, and in the current display device such as a television, the same decoding method cannot be used to decode two different television signals. When the signal on a certain frequency point changes and the signal type also changes, the display device cannot listen to the changed television signal of another type. In this case, the channel update or signal search needs to be manually selected by the user. This way is not only complicated to operate, but also affects the user's experience of watching the display device.

[0073] To solve the above problems, a display device 200 is provided in the embodiments of the present application, which includes a display 260 and a controller 250. Wherein, Figure 6 A first flowchart of a channel list updating method on the display device 200 according to some embodiments is shown as follows. Figure 6 As shown in the figure, the controller 250 can be configured to perform the following steps:

[0074] In step S101, in response to the user's operation of switching channels, the display 260 is controlled to play the current signal content accessed by the target channel.

[0075] When the user uses the display device 200, the display device 200 can be controlled to switch channels by the control device 100 or by inputting a voice instruction to the display device 200. For example, from channel 1 to channel 2, and the like. For a television channel, the display device 200 can record the channel signal of the television channel, and play the corresponding television signal according to the channel information, for example, play an analog television signal or a digital television signal, and the like. Wherein, the display device 200 plays the content of the target channel is to play the content of the television signal corresponding to the target channel.

[0076] Step S102, determine whether the current signal content is played successfully.

[0077] In the embodiment of the application, the frequency point of the television channel will always exist, but the corresponding television signal on the frequency point may be updated or changed, so that the display device 200 cannot parse the audio and video data on the frequency point, and then the display 260 may not be able to normally play the picture.

[0078] Step S103, if the current signal content is not played successfully, determine the current signal type of the target channel access.

[0079] In the embodiment of the application, the television signal type that the display device 200 can play includes an analog television signal and a digital television signal. Among them, the analog television signal may be the most basic signal in some countries or regions, therefore, in the configuration of the display device 200, the analog television signal is usually first given to each channel access. And then, with the popularization and popularization of digital television, more and more digital television signals may gradually replace analog television signals.

[0080] If the current signal content in the target channel is not played successfully, then in the embodiment of the application, the display device 200 will first determine whether it is the most basic analog television signal without signal. That is, the display device 200 will determine whether the type of the current signal that is not played successfully is an analog television signal.

[0081] Step S104, if the current signal type is an analog television signal, according to the frequency point where the analog television signal is located, a list of digital television signals is obtained.

[0082] As described above, the update and replacement of the channel is usually replaced by a digital television signal replacing an analog television signal, therefore, if the current television signal that is not played successfully is an analog television signal, the display device 200 needs to continue to determine whether there is a replaceable digital television signal.

[0083] If the current television signal that is not played successfully is an analog television signal, the current analog television signal frequency point can be detected first, and then the corresponding digital television signal frequency point is obtained according to the analog television signal frequency point, so as to obtain a digital television signal list corresponding to the digital television signal frequency point.

[0084] In the embodiment of the present application, one digital television signal in the digital television signal list corresponds to one channel, that is, the digital television signal list corresponding to the frequency point can also be regarded as a channel list corresponding to the frequency point.

[0085] In step S105, the channel list of the display device 200 is updated according to the digital television signal list.

[0086] In the code stream of the digital television signal, not only the specific signal content, but also the physical channel number corresponding to the current digital television signal, the channel, the audio and video data corresponding to each channel and the like can be included. If the target channel of the analog television signal is prompted to have no signal, when the channel list is updated, the target channel needs to be deleted from the channel list, and then the channels corresponding to the digital television signals in the digital television signal list are added to the channel list.

[0087] For example, the user wants to watch the TV series XXX on channel 10, but the analog television signal of the frequency point 193.25 MHz accessed by the channel 10 has changed. At this time, the display device 200 can obtain that the digital television signal frequency point corresponding to the frequency point 193.25 MHz is 195 MHz, therefore, the display device 200 adds the channels corresponding to all the digital television signals on the frequency point 195 MHz to the channel list of the display device 200, and deletes the original channel 10 from the channel list.

[0088] It can be seen that the display device 200 in the above embodiment of the present application can automatically detect whether the current signal content accessed by the target channel is played successfully when the user switches to the target channel for watching. In the case that the current signal content is not played successfully, the display device 200 determines the current signal type accessed by the target channel, and automatically searches all the digital television signals corresponding to the analog television signal on the frequency point of the analog television signal in the case that the current signal type is an analog television signal. Finally, the display device 200 adds the channels corresponding to all the digital television signals to the channel list, so as to complete the updating operation of the channel list. The updating operation of the channel list in the embodiment of the present application is actively performed in the case that the channel signal currently played by the display device 200 changes, and the user does not need to manually search the digital television signal in the updating process of the channel list, therefore, the updating mode of the channel list reduces the complexity of the user operation, and improves the experience of the user watching the display device 200.

[0089] It should be understood that one physical channel number corresponds to one frequency point, which can be an analog television signal frequency point or a digital television signal frequency point, and for analog television signals, one frequency point corresponds to one television channel, and for digital television signals, one frequency point can correspond to multiple television channels.

[0090] Generally, the frequency point information corresponding to the physical channel number is specifically set according to the frequency band requirements of the country or region where the display device 200 is located. For example, in some regions, the digital television signal frequency point and the analog television signal frequency point corresponding to each physical channel number are fixed; or in some regions, the analog television signal frequency point corresponding to each physical channel number is not fixed, and the digital television signal frequency point is also within a frequency point range.

[0091] In the above step S104, taking the example that each physical channel number has a respective corresponding explicit frequency point, part of the correspondence between the physical channel number and the frequency point is as follows:

[0092] Region 1 Digital television signal Analog television signal Physical channel number Frequency (MHz) Frequency (MHz) 2 57 55.25 3 63 61.25 4 69 67.25 5 79 77.25 6 85 83.25 7 177 175.25 8 183 181.25 9 189 187.25 10 195 193.25 11 201 199.25 12 207 205.25 13 213 211.25 …… …… …… 69 803 801.25

[0093] In the table, the physical channel numbers from 2 to 69 each correspond to a digital television signal frequency point and an analog television signal frequency point. According to the explicit correspondence of the channel and the frequency point in this table, after learning that the target channel accesses the analog television signal, the current analog television signal frequency point of the target channel can be determined first, and then the corresponding physical channel number can be found according to the analog television signal channel using the correspondence in the above table, and finally the corresponding digital television signal frequency point can be determined according to the physical channel number.

[0094] In addition, in the above table, the analog television signal frequency point and the digital television signal frequency point also have a certain correspondence, for example, digital television signal frequency point = analog television signal frequency point + 1.75 MHz. Furthermore, in some embodiments, the digital television signal frequency point can also be calculated directly from the analog television signal frequency point according to this correspondence, rather than being obtained from the above table.

[0095] For example, in the target channel currently selected by the user for viewing on the display device 200, the currently accessed frequency point of the analog television signal is changed to 55.25 MHz, so the digital television signal frequency point corresponding to the frequency point 55.25 MHz is determined to be 57 MHz. If the digital television signal on the frequency point 57 MHz is digital television signal A, digital television signal B, digital television signal C, digital television signal D, etc., and the digital television signal A corresponds to channel 5-1, the digital television signal B corresponds to channel 5-2, the digital television signal C corresponds to channel 5-3, and the digital television signal D corresponds to channel 5-4, then when updating the channel list, the channels 5-1, 5-2, 5-3, and 5-4 can be added to the channel list.

[0096] Alternatively, if the currently accessed analog television signal at the target channel currently selected by the user on the display device 200 changes from the analog television signal at the frequency point of 801.25 MHz, the frequency point of 803 MHz corresponding to the digital television signal at the frequency point of 801.25 MHz can be determined. If the digital television signal at the frequency point of 803 MHz is the digital television signal E and the digital television signal F, etc., and the digital television signal E corresponds to the channel 69-1 and the digital television signal F corresponds to the channel 69-2, the channels 69-1 and 69-2 can be added to the channel list when the channel list is updated.

[0097] Since the display 260 displays a prompt of no signal after the signal at the target channel changes, in order to provide a better user experience, after the above-mentioned digital television signal list is obtained, the controller 250 of the display device 200 can also control the display 260 to automatically play the content of the first digital television signal in the digital television signal list, so as to avoid the display 260 still displaying the channel content of no signal.

[0098] Alternatively, the controller 250 can also control the display 260 to display a channel selection page to the user, and the channel selection page can display the channel numbers corresponding to the digital television signals in the above-mentioned digital television signal list. After the user selects a target channel number on the channel selection page, the controller 250 controls the display 260 to display the content of the digital television signal corresponding to the target channel number.

[0099] Figure 7 A schematic diagram of a channel selection page on the display device 200 according to some embodiments is shown. As shown in Figure 7 For example, the channel 5-1, the channel 5-2, the channel 5-3, and the channel 5-4 in the foregoing embodiments can be displayed on the channel selection page.

[0100] After the display device 200 obtains the above-mentioned digital television signal list, the channel list can be updated by the display device 200 itself, and the channel list can also be updated according to the user's selection. Figure 8 A second flowchart of a channel list updating method on the display device 200 according to some embodiments is shown. In some embodiments, in the process of updating the channel list according to the user's selection, as shown in Figure 8 The controller 250 of the display device 200 can also be configured to perform the following steps.

[0101] Step S201: After obtaining the digital television signal list according to the frequency point of the analog television signal, the display 260 displays a prompt page.

[0102] Figure 9Fig. 1 shows a schematic diagram of a prompt page on a display device 200 according to some embodiments. As shown in Fig. 1, the prompt page displays a prompt prompting the user to update the channel list, for example, "Current channel has no signal. Do you want to update the channel list?" Figure 9

[0103] After the user sees the prompt on the prompt page, the user can choose whether to update the channel list according to his / her needs. If the user wants to update the channel list, the user selects the "Yes" control. If the user does not want to update the channel list, the user selects the "No" control.

[0104] In the embodiments of the present application, when the user chooses whether to update the channel list, the user can move the focus to the position of the "Yes" or "No" control by using a control device 100 such as a remote controller, and then press the "Confirm" button on the control device 100. Alternatively, the user can input a voice control instruction such as "update the channel list" or "give up updating the channel list" to the display device 200 to complete the selection of updating the channel list.

[0105] Step S202, in response to the user's operation of choosing to update the channel list, add all the channels corresponding to the digital television signals in the digital television signal list to the existing channel list of the display device 200.

[0106] In addition, in some areas, the analog television signal frequency points corresponding to each physical channel number are not fixed, and the digital television signal frequency points are within a frequency point range. In this case, the display device 200 cannot determine the physical channel number using the analog television signal frequency point, and then determine the digital television signal frequency point using the physical channel number.

[0107] Figure 10 Fig. 4 shows a flowchart of obtaining a digital television signal list on a display device 200 according to some embodiments. In some embodiments, if the analog television signal frequency points corresponding to each physical channel number are not fixed, and the digital television signal frequency points are within a frequency point range, when obtaining the digital television signal list, the display device 200 can be configured to perform the following steps. Figure 10

[0108] Step S301, if the current signal type is an analog television signal, obtain the preset frequency point bandwidth of the area where the display device 200 is located.

[0109] In some countries or regions, the frequency point bandwidth of a television signal can be 6M, 7M, 8M, etc.

[0110] ​​Step S302, according to the frequency point of the analog television signal and the preset frequency point bandwidth, the frequency range of the digital television signal is determined. When the display device 200 detects the frequency point of the current analog television signal, the display device 200 can take the frequency point of the analog television signal as the center frequency point, and combine the frequency point bandwidth of the current region to determine the frequency range of the corresponding digital television signal.

[0111] For example, the frequency point of the analog television signal of the target channel is 184.25MHz, and the frequency point bandwidth of the current region of the display device 200 is 8M, so that the frequency range of the digital television signal determined with the frequency point 184.25MHz as the center point is 180.25MHz-188.25MHz.

[0112] Alternatively, the frequency point of the analog television signal of the target channel is 224.30MHz, and the frequency point bandwidth of the current region of the display device 200 is 6M, so that the frequency range of the digital television signal determined with the frequency point 224.30MHz as the center point is 221.30MHz-227.30MHz.

[0113] Further alternatively, the frequency point of the analog television signal of the target channel is 67.20MHz, and the frequency point bandwidth of the current region of the display device 200 is 7M, so that the frequency range of the digital television signal determined with the frequency point 67.20MHz as the center point is 63.70MHz-70.70MHz.

[0114] Step S303, all digital television signals existing in the frequency range are composed into a digital television signal list.

[0115] For example, the frequency range of the digital television signal to be selected is determined to be 180.25MHz-188.25MHz according to the above step S302, and if the frequency point of the digital television signal to be selected in the country or region is 184.50MHz within the range of 180.25MHz-188.25MHz, then all digital television signals corresponding to the frequency point 184.50MHz can form a digital television signal list corresponding to the analog television signal frequency point 184.25MHz.

[0116] Alternatively, the frequency range of the digital television signal to be selected is determined to be 221.30MHz-227.30MHz according to the above step S302, and if the frequency point of the digital television signal to be selected in the country or region is 226.5MHz within the range of 221.30MHz-227.30MHz, then all digital television signals corresponding to the frequency point 226.5MHz can also form a digital television signal list corresponding to the analog television signal frequency point 224.30MHz.

[0117] Alternatively, if it is determined according to the step S302 that the frequency range of the candidate digital television signal is 63.70MHz-70.70MHz, and there is no frequency point of the candidate digital television signal in the range of 63.70MHz-70.70MHz, the display device 200 can determine that there is no corresponding digital television signal list for the frequency point 67.20MHz of the analog television signal.

[0118] In addition, after the digital television signal list is obtained according to the steps S301-S302, the controller 250 can update the channel list by itself, or control the display 260 to display a prompt page, and after the user selects to update the channel list, add all the channels corresponding to the digital television signals in the digital television signal list to the existing channel list of the display device 200.

[0119] In addition, since the display 260 displays a prompt of no signal after the signal on the target channel changes, in order to provide a better user experience, after the digital television signal list is obtained according to the steps S301-S302, the controller 250 of the display device 200 can also control the display 260 to automatically play the content of the first digital television signal in the digital television signal list, so as to avoid the display 260 still displaying the channel content of no signal. Alternatively, the controller 250 can also control the display 260 to display a channel selection page to the user, and after the user selects a target channel number on the channel selection page, the controller 250 controls the display 260 to display the content of the digital television signal corresponding to the target channel number.

[0120] With the development of digital television, more and more signal standards and systems have also emerged. At present, for digital television signals, higher standards are also used in some countries or regions, for example, the ATSC3.0 standard. The ATSC3.0 standard can also be called the next-generation television standard, which is the latest version of the Advanced Television Systems Committee standard, and defines how to accurately broadcast and interpret television signals. At present, the commonly used digital television signal is the digital television signal conforming to the ATSC1.0 standard, that is, the digital television signal referred to in the embodiments of the present application.

[0121] Compared with the digital television signal conforming to the ATSC1.0 standard, the digital television signal conforming to the ATSC3.0 standard has many new features. In terms of sound and picture, in addition to 4K video with HDR (High Dynamic Range Imaging) technology, the ATSC3.0 standard can also realize immersive sound effects.

[0122] After the ground television station adopts the ATSC 3.0 standard and upgrades the technology to the Internet website, a wireless and data-independent IP transmission channel will be provided. This means that the bit information flowing through the Internet can be transmitted through the ground spectrum. The ATSC 3.0 standard can fully play the advantages of broadcasters in video program sources in the services provided by the mobile receiving device-based IP-based wireless Internet website.

[0123] The user has more choices when watching the display device 200, and the watching mode is more flexible. Moreover, the user can download the television program at night and store it locally in the display device 200, and then the user can enjoy the mass content at the right time. In addition, the digital television signal of the ATSC 3.0 standard also contains targeted advertising content.

[0124] It is worth noting that the digital television signal conforming to the ATSC 3.0 standard can directly replace the digital television signal or directly replace the analog television signal. Figure 11 A third flowchart of a channel list updating method on the display device 200 according to some embodiments is shown. In some countries and regions using the ATSC 3.0 standard, such as the United States, the display device 200 can receive the ATSC 3.0 digital television signal conforming to the ATSC 3.0 standard. Figure 11 As shown, the controller 250 of the display device 200 can also be configured to perform the following steps:

[0125] Step S401, if the current signal type is an ATSC 1.0 digital television signal conforming to the ATSC 1.0 standard, an ATSC 3.0 digital television signal list conforming to the ATSC 3.0 standard corresponding to the current signal frequency point is obtained.

[0126] In the embodiments of the present application, if the country or region where the display device 200 is located can use the digital television signal conforming to the ATSC 3.0 standard, these countries or regions will also set the frequency point and signal corresponding relationship for the digital television signal conforming to the ATSC 3.0 standard. As the same as the ordinary digital television signal in the above-mentioned embodiments, the digital television signal conforming to the ATSC 3.0 standard also corresponds to a frequency point value, and the same frequency point can also correspond to multiple digital television signals conforming to the ATSC 3.0 standard.

[0127] Step S402, control the display 260 to display a prompt page.

[0128] The prompt page mentioned here can refer to the prompt page shown in the above-mentioned embodiments. Figure 9 The user selects whether to update the channel list on the prompt page.

[0129] Step S403, in response to the user selecting the operation of updating the channel list, adding all the channels corresponding to the ATSC 3.0 digital television signals in the ATSC 3.0 digital television signal list to the existing channel list of the display device 200.

[0130] Similarly, after obtaining the ATSC 3.0 digital television signal list according to the above step S401, the controller 250 can also update the channel list by itself.

[0131] Alternatively, if the current signal type is an analog television signal, the ATSC 3.0 digital television signal list conforming to the ATSC 3.0 standard corresponding to the current signal frequency point can also be obtained. Further, the digital television signal conforming to the ATSC 3.0 standard is directly replaced by the analog television signal.

[0132] And since the signal on the target channel changes, the display 260 will display a no signal prompt, so as to provide a better user experience, after obtaining the ATSC 3.0 digital television signal list according to the above step S401, the controller 250 of the display device 200 can also control the display 260 to automatically play the content of the first ATSC 3.0 digital television signal in the ATSC 3.0 digital television signal list, thereby avoiding the display 260 still displaying the channel content of no signal. Alternatively, the controller 250 can also control the display 260 to display a channel selection page to the user, and after the user selects the target channel number on the channel selection page, the controller 250 controls the display 260 to display the content of the ATSC 3.0 digital television signal corresponding to the target channel number.

[0133] It is worth noting that if there is only one digital television signal in the digital television signal list obtained by any of the foregoing embodiments, in order to save the user's selection time, the display device 200 can also directly play the content of this digital television signal. Alternatively, the display device 200 can also display the channel number corresponding to the one digital television signal on the prompt page.

[0134] In the foregoing embodiments, if the current signal content accessed by the target channel is not played successfully, the display 260 will briefly display a no signal prompt on the display page. Then, if the digital television signal list corresponding to the analog television signal frequency point can be obtained, the display 260 will display a channel selection page, or directly play the content of the first digital television signal in the digital television signal list.

[0135] If the digital television signal list corresponding to the analog television signal frequency point is not acquired in the above embodiment, i.e., the analog television signal frequency point does not correspond to any digital television signal, the display 260 still displays the no signal prompt. In this process, the controller 250 of the display device 200 can be configured to: when the current signal type accessed by the target channel is an analog television signal, if the digital television signal list is not acquired according to the frequency point where the analog television signal is located, the controller 250 controls the display 260 to display the no signal prompt of the target channel.

[0136] Alternatively, the controller 250 of the display device 200 can also be configured to: when the current signal type accessed by the target channel is an ATSC 1.0 digital television signal conforming to the ATSC 1.0 standard, if the digital television signal list conforming to the ATSC 3.0 standard on the frequency point of the current signal is not acquired, the controller 250 controls the display 260 to display the no signal prompt of the target channel.

[0137] In some embodiments, after the display 260 displays the prompt page described above, if the user wants to update the channel list, the user can select the "Yes" control on the prompt page. If the user does not want to update the channel list, the user can select the "No" control or do nothing. When the user does not make any operation on the prompt page, the controller 250 of the display device 200 detects the time when the user does not operate, and after the time when the user does not operate reaches a preset time threshold, the controller 250 controls the prompt page to disappear, and then controls the display 260 to display the no signal prompt of the target channel.

[0138] From the above, it can be seen that the display device 200 provided in the present application can automatically detect whether the current signal content accessed by the target channel is successfully played when the user switches to the target channel for viewing. In the case where the current signal content is not successfully played, the display device 200 determines the current signal type accessed by the target channel, and automatically searches for all digital television signals corresponding to the analog television signal in the case where the current signal type is an analog television signal. Finally, the display device 200 adds the channels corresponding to all digital television signals to the channel list, thereby completing the update operation of the channel list. When the user selects a channel on the display device 200 to watch, the type of television signal on the channel changes, and the user does not have to manually search for the corresponding digital television signal to complete the update of the channel list. Therefore, the way of updating the channel list reduces the complexity of user operation and improves the user experience of watching the display device 200.

[0139] To solve the problem that the user needs to manually search for the signal and then complete the channel list update when the type of the television signal on a certain channel selected by the user for watching on the display device changes in the foregoing embodiments, an embodiment of the present application further provides a method for updating a channel list on a display device. The method can be applied to the display device 200 in the foregoing embodiments and is specifically implemented by the controller 250 of the display device 200. The method can specifically include the following steps.

[0140] In step S101, the display is controlled to play the current signal content accessed by the target channel in response to the user switching the channel.

[0141] In step S102, it is determined whether the current signal content is played successfully.

[0142] In step S103, if the current signal content is not played successfully, the type of the current signal accessed by the target channel is determined.

[0143] In step S104, if the type of the current signal is an analog television signal, a digital television signal list is obtained according to the frequency point where the analog television signal is located. Each digital television signal in the digital television signal list corresponds to a channel.

[0144] In step S105, the channel list of the display device is updated according to the digital television signal list.

[0145] Since the method for updating a channel list on a display device in the embodiment of the present application can be applied to the display device 200 in the foregoing embodiments and is implemented by the controller 250 of the display device 200, other contents about the method for updating a channel list on a display device in the embodiment of the present application can refer to the contents of the foregoing embodiments, which will not be described here again.

[0146] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0147] For the sake of explanation, the foregoing descriptions have been presented in terms of specific embodiments. However, it is to be appreciated that specific embodiments described herein are not intended to limit the scope of the present application, which is defined with reference to the following claims. Various modifications and changes can be made thereto by those skilled in the art which fall within the scope of the present application as defined by the following claims. The embodiments were chosen and described in order to explain the principles of the application and the practical application and to enable others skilled in the art to understand for implementing various embodiments and with various modifications as are suited to the particular use contemplated.

Claims

1. A display device, characterized in that, include: monitor; A controller connected to the display is configured to: In response to the user's channel switching operation, control the display to play the current signal content of the target channel; Determine whether the current signal content has been played successfully; If the current signal content fails to play successfully, the current signal type of the target channel is determined; wherein, the signal type changes over time; If the current signal type is an analog television signal, then the corresponding digital television signal frequency point is obtained according to the frequency point where the analog television signal is located; A list of corresponding digital television signals is obtained based on the frequency points of the digital television signals; each digital television signal in the list corresponds to a channel. The channel list of the display device is updated based on the digital television signal list.

2. The display device according to claim 1, characterized in that, The controller is also configured to: If the current signal type is an analog television signal, then obtain the preset frequency bandwidth of the region where the display device is located; The frequency range of the digital television signal is determined based on the frequency point of the analog television signal and the preset frequency bandwidth. A list of digital television signals is compiled from all digital television signals existing within the stated frequency range.

3. The display device according to any one of claims 1-2, characterized in that, The controller is also configured to: After obtaining the list of digital television signals based on the frequency of the analog television signal, the system controls the display to show a prompt page; the prompt page is used to prompt the user whether to update the channel list. In response to the user's selection to update the channel list, all channels corresponding to digital television signals in the digital television signal list are added to the existing channel list of the display device.

4. The display device according to claim 1, characterized in that, The controller is also configured to: After obtaining the list of digital television signals based on the frequency of the analog television signal, the display is controlled to play the content of the first digital television signal in the list.

5. The display device according to claim 1, characterized in that, The controller is also configured to: If the current signal type is an ATSC1.0 digital television signal conforming to the ATSC1.0 standard, then obtain the list of ATSC3.0 digital television signals conforming to the ATSC3.0 standard corresponding to the current signal frequency point; The display screen is controlled to show a prompt page; the prompt page is used to prompt the user whether to update the channel list. In response to the user's selection to update the channel list, all channels corresponding to ATSC3.0 digital television signals in the ATSC3.0 digital television signal list are added to the existing channel list of the display device.

6. The display device according to claim 5, characterized in that, The controller is also configured to: After obtaining the list of ATSC3.0 digital television signals that conform to the ATSC3.0 standard corresponding to the current signal frequency, the display is controlled to play the content of the first ATSC3.0 digital television signal in the list.

7. The display device according to claim 1, characterized in that, The controller is also configured to: When the current signal type is an analog television signal, if no digital television signal list is obtained based on the frequency of the analog television signal, the display will show a message indicating that the target channel has no signal.

8. The display device according to claim 3, characterized in that, The controller is also configured to: After the display shows the prompt page, if the user does not select to update the channel list on the prompt page, the display will show a prompt that the target channel has no signal.

9. A method for updating a channel list on a display device, characterized in that, The method includes: In response to the user's channel switching operation, control the display to play the current signal content of the target channel; Determine whether the current signal content has been played successfully; If the current signal content fails to play successfully, the current signal type of the target channel is determined; wherein, the signal type changes over time; If the current signal type is an analog television signal, then the corresponding digital television signal frequency point is obtained according to the frequency point where the analog television signal is located; A list of corresponding digital television signals is obtained based on the frequency points of the digital television signals; each digital television signal in the list corresponds to a channel. The channel list of the display device is updated based on the digital television signal list.

10. The method according to claim 9, characterized in that, The method further includes: If the current signal type is an analog television signal, then obtain the preset frequency bandwidth of the region where the display device is located; The frequency range of the candidate digital television signal is determined based on the frequency point of the analog television signal and the preset frequency point bandwidth. A list of digital television signals is compiled from all digital television signals existing within the stated frequency range.

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