KR20110000998A - Image display device and control method for the same - Google Patents

Abstract

PURPOSE: A control method of an image display device for arranging added contents services according to the desired search reference is provided to add a contents service by a symbol of a user in consideration of installed services. CONSTITUTION: If the same service as a first contents service exists on a service table, a control unit displays information about the same service on a display(S340, S360). If a deletion command about the same service is received, the controller deletes the same service on the service table(S370, S380). If an addition command of the first contents service is received, the controller registers the information about the first contents service on the service table(S350, S390).

Description

Image Display Device and Control Method for the Same}

The present invention relates to an image display apparatus and a control method thereof. More particularly, the present invention relates to an image display apparatus capable of transmitting and using a content service through a network and a control method thereof.

The image display device is a device having a function of displaying an image that a user can watch. The user can watch the broadcast through the image display device. A video display device displays a broadcast selected by a user among broadcast signals transmitted from a broadcast station on a display. Currently, broadcasting is shifting from analog broadcasting to digital broadcasting worldwide.

Digital broadcasting refers to broadcasting for transmitting digital video and audio signals. Digital broadcasts are more resistant to false noise than analog broadcasts, resulting in lower data loss, better error correction, higher resolution, and clearer pictures. In addition, unlike analog broadcasting, digital broadcasting is capable of bidirectional services.

In addition, as digital-based digital TV technology has been developed and commercialized in existing analog broadcasts, a variety of real-time broadcasts, contents on demand, games, news, etc. can be obtained by using Internet networks connected to homes in addition to existing radio media. It is now possible to provide content to viewers.

An example of providing content using the Internet network may be an Internet Protocol TV (IPTV). The IPTV refers to a service that provides information service, video content, and broadcasting using a high-speed Internet network.

Broadband, which can process a lot of data and use broadcasting networks and networks, has been applied to TVs, and services of various contents have become part of TV functions. Since various services can be provided through the Internet network, the type of content and the number of providers are unlimited. The ideal case is to use all the services you want on your TV.

 The service provided based on the Internet network is expected to diversify the content or provider. Due to the variety of services installed in the image display device, a user may feel confused about searching and using.

In addition, it is necessary to consider the limited resources of the video display system. Since resources such as memory of the video display device are limited, it is difficult to install all services desired by the user on the video display device and use them quickly and conveniently.

Accordingly, an object of the present invention is to provide an image display apparatus and a method of controlling the same, which improves the efficiency of using a resource such as a memory of the image display apparatus and enables a user to search and use a content service more easily and conveniently.

According to another aspect of the present invention, there is provided a method of controlling an image display apparatus, the method including: displaying a content service that can be provided through a network; Receiving an installation command for receiving a first content service of the content service; Acquiring information about the first content service; Determining whether the same service as the first content service exists in a service table; And if the same service does not exist in the service table, registering information about the first content service in the service table.

In addition, the video display device according to an embodiment of the present invention for achieving the above object, a display for displaying a content service; A signal input unit capable of receiving a content service through a network; A control unit which obtains information on a content service from which an installation command is received and registers it in a service table; And a storage unit capable of storing the service table, wherein the control unit, when receiving an installation command for receiving a first content service, obtains information about the first content service, and provides the first content service. If the same service as does not exist in the service table, the information about the first content service is registered in the service table.

According to the present invention, when adding and installing a content service by a user's preference, it is possible to avoid unnecessary service addition and installation by considering information of existing installed services, and to check and delete information of an existing installed service, and to delete a new service. It can be installed to efficiently utilize the resources of the video display device.

In addition, by allowing the added content services to be arranged according to the search criteria as desired by the user, the user may improve various service management conveniences.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 is an internal block diagram of an image display apparatus according to an embodiment of the present invention.

Referring to FIG. 1, an image display apparatus 100 according to an exemplary embodiment of the present invention may include an image / audio processor 101, an interface unit 150, a storage unit 160, a display 170, and an audio output unit ( 175 and the controller 180.

The video / audio processor 101 processes an input video signal or an audio signal to output an image or an audio signal to the display 170 and the audio output unit 175 of the video display device 100. To this end, the image / audio processor 101 may include a signal input unit 110, a demodulator 120, and a signal processor 140. In addition, the signal input unit 110 may include a tuner unit 111, an A / V input unit 112, a USB input unit 113, a wireless signal input unit 114, and a network unit 115.

The tuner unit 111 selects an RF broadcast signal corresponding to a channel selected by a user from among radio frequency (RF) broadcast signals received through an antenna, and converts the selected RF broadcast signal into an intermediate frequency signal or a baseband video or audio signal. To convert. For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal (DIF). If the analog broadcast signal is converted into an analog baseband video or audio signal (CVBS SIF). That is, the tuner 111 may process a digital broadcast signal or an analog broadcast signal. The analog baseband video or audio signal CVBS SIF output from the tuner 111 may be directly input to the signal processor 140.

In addition, the tuner 111 may receive an RF broadcast signal of a single carrier according to an Advanced Television System Committee (ATSC) scheme or an RF broadcast signal of a plurality of carriers according to a digital video broadcasting (DVB) scheme.

According to another embodiment of the present invention, the image display apparatus 100 may include at least two tuner units. When the second tuner unit includes at least two tuner units, the second tuner unit selects an RF broadcast signal corresponding to a channel selected by a user from among RF broadcast signals received through an antenna, similarly to the first tuner unit, and intermediates the selected RF broadcast signal. Convert to frequency signal or baseband video or audio signal.

In addition, the second tuner may sequentially select the RF broadcast signals of all the broadcast channels stored through the channel memory function among the received RF broadcast signals and convert them into intermediate frequency signals or baseband video or audio signals. The second tuner may periodically perform conversion of all broadcast channels. Therefore, the image display apparatus 100 may provide images of various channels converted through the second tuner in the form of thumbnails while displaying the image of the broadcast signal converted through the first tuner. In this case, the first tuner converts the main RF broadcast signal selected by the user into an intermediate frequency signal or a baseband video or audio signal, and the second tuner selects all RF broadcast signals except for the main RF broadcast signal sequentially / periodically. This may be converted into an intermediate frequency signal or a baseband video or audio signal.

The demodulator 120 receives the digital IF signal DIF converted by the tuner 111 and performs a demodulation operation. For example, when the digital IF signal output from the tuner unit 111 is an ATSC scheme, the demodulator 120 performs 8-VSB (8-Vestigal Side Band) demodulation. As another example, when the digital IF signal output from the tuner unit 111 is a DVB method, the demodulator 120 performs COFDMA (Cded Orthogonal Frequency Division Modulation) demodulation.

Also, the demodulation unit 120 may perform channel decoding. To this end, the demodulator 120 includes a trellis decoder, a de-interleaver, and a reed solomon decoder to perform trellis decoding, deinterleaving, Solomon decoding can be performed.

The demodulation unit 120 may perform demodulation and channel decoding, and then output a stream signal TS. In this case, the stream signal may be a signal multiplexed with a video signal, an audio signal, or a data signal. For example, the stream signal may be an MPEG-2 TS (Transprt Stream) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, and the like. In more detail, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

The stream signal output from the demodulator 120 may be input to the signal processor 140. After the signal processor 140 performs demultiplexing and signal processing, the signal processor 140 outputs an image to the display 170 and outputs an audio signal to the audio output unit 175.

In addition, in the case of an image display device having at least two tuner units, a corresponding number of demodulators may be provided. The demodulator may be provided separately according to the ATSC scheme and the DVB scheme.

In addition, the signal input unit 110 may connect the external device to the image display device 100. The external device refers to various types of video or audio output devices such as a digital versatile disk (DVD), a Blu-ray, a game device, a camcorder, a computer (laptop), and the like. The signal input unit 110 inputs an image, audio or data signal of an external device to the signal processor 140 capable of processing the image signal and the audio signal of the image display device 100.

The A / V input unit 112 of the signal input unit 110 includes an Ethernet terminal, a USB terminal, and a Composite Video Banking Sync to input video and audio signals of an external device to the video display device 100. ) Terminal, component terminal, S-video terminal (analog), DVI (Digital Visual Interface) terminal, HDMI (High Definition Multimedia Interface) terminal, RGB terminal, D-SUB terminal, IEEE 1394 terminal, SPDIF terminal, Liquid HD terminals and the like. The analog signal input through the CVBS terminal and the S-video terminal may be converted into a digital signal and input to the signal processor 140. The digital signal input through other input terminals may be input to the signal processor 140 without an analog / digital conversion process.

The USB input unit 113 may input a video and audio signal through a USB terminal.

The wireless signal inputter 114 may connect the image display apparatus 100 to a wireless network. The image display apparatus 100 may be connected to the wireless Internet through the wireless signal input unit 114. For wireless Internet access, wireless LAN (Wi-Fi), wireless broadband (Wibro), world interoperability for microwave access (Wimax), high speed downlink packet access (HSDPA) communication standards, and the like may be used. In addition, the wireless signal input unit 114 may perform short-range wireless communication with other electronic devices. For example, it may be networked with other electronic devices according to Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee communication standards.

In addition to the wireless signal input unit 114, via an Ethernet terminal, or the signal input unit 110 further includes a network unit 115 for efficient network connection and management, the network unit 115 is an image display The device 100 may be connected to a network through a PSTN, a LAN, a cable, or the like.

Meanwhile, the signal input unit 110 may be connected through at least one of the various set top boxes and the various terminals described above to perform input / output operations with the set top box. For example, when the set-top box is a set-top box for an Internet Protocol (IP) TV, video, audio, and data signals processed by the set-top box for IPTV may be transmitted to the controller 160 to enable bidirectional communication. Signals processed by the controller 160 may be transferred to the set-top box for IPTV.

Meanwhile, the above-described IPTV may mean ADSL-TV, VDSL-TV, FTTH-TV, etc. according to the type of transmission network, and include TV over DSL, Video over DSL, TV overIP (TVIP), and Broadband TV ( BTV) and the like. In addition, IPTV may be meant to include an Internet TV, a full browsing TV that can be connected to the Internet.

Therefore, in addition to the broadcast signal through the radio wave medium of the image display device and the signal from the external input device according to the present invention, the signal transmitted through the wired or wireless network can be processed.

The signal processor 140 may demultiplex the received stream signal, for example MPEG-2 TS, and separate the video signal, the audio signal, and the data signal, respectively. In addition, the signal processor 140 may perform image processing of the demultiplexed image signal. For example, when the demultiplexed video signal is an encoded video signal, it may be decoded. Specifically, when the demultiplexed video signal is an encoded video signal of MPEG-2 standard, it may be decoded by an MPEG-2 decoder. In addition, when the demultiplexed video signal is a video signal of the H.264 standard according to the Digital Multimedia Broadcasting (DMB) scheme or DVB-H, it may be decoded by the H.264 decoder.

In addition, the signal processor 140 may process brightness, tint, and color of the image signal. The image signal processed by the signal processor 140 is displayed on the display 170. In addition, the signal processor 140 may perform voice processing of the demultiplexed voice signal. For example, if the demultiplexed speech signal is a coded speech signal, it can be decoded. Specifically, when the demultiplexed speech signal is an encoded speech signal of MPEG-2 standard, it may be decoded by an MPEG-2 decoder. In addition, when the demultiplexed speech signal is an encoded speech signal of MPEG 4 Bit Sliced Arithmetic Coding (BSAC) standard according to the terrestrial digital multimedia broadcasting (DMB) scheme, it may be decoded by an MPEG 4 decoder. In addition, when the demultiplexed speech signal is an encoded audio signal of the AAC (Advanced Audio Codec) standard of MPEG 2 according to the satellite DMB scheme or DVB-H, it may be decoded by the AAC decoder.

In addition, the signal processor 140 may process a base, treble, volume control, and the like.

The voice signal processed by the signal processor 140 is output to the voice output unit 175. In addition, the signal processor 140 may perform data processing of the demultiplexed data signal. For example, when the demultiplexed data signal is an encoded data signal, it may be decoded. The encoded data signal may be EPG (Electronic Progtam Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted in each channel. For example, the EPG information may be TSC-PSIP (ATSC-Program and System Information Protocol) information in the ATSC scheme, and may include DVB-Service Information (DVB-SI) in the DVB scheme. . The ATSC-PSIP information or the DVB-SI information may be information included in the aforementioned stream, that is, the header (4 bytes) of the MPEG-2 TS.

In addition, the signal processor 140 may perform On Screen Display (OSD) processing. In detail, the signal processor 140 may display an image on a screen of the display 170 based on an image signal processed by the image, at least one of the data signal processed by the data signal, and a user input signal input to the remote controller 200. Various information can be displayed in a graphic or text format.

The storage unit 160 may store a program for processing and controlling each signal in the controller 180, or may store a signal processed video signal, an audio signal, or a data signal. In addition, the storage unit 160 may perform a function for temporarily storing an image, audio, or data signal input to the signal input unit 110.

The storage unit 160 may include a flash memory type, a hard disk type, a multimedia card micro type, and a card type memory (for example, SD or XD memory). It may include at least one type of storage medium, RAM, ROM (EEPROM, etc.). The image display apparatus 100 may reproduce a file (video file, still image file, music file, document file, etc.) stored in the storage unit 160 and provide the same to the user.

The controller 180 controls the overall operation of the image display apparatus 100. The controller 180 may receive a signal transmitted from the remote controller 200 through the interface unit 150. The controller 180 determines a command input by the user to the remote control apparatus 200 through the received signal and controls the image display apparatus 100 to correspond thereto. For example, when the user inputs a predetermined channel selection command, the controller 180 controls the tuner 111 to input the selected channel through the signal input unit 110. In addition, the signal processor 140 is controlled to process the video signal and the audio signal of the selected channel. In addition, the signal processor 140 is controlled so that the channel information selected by the user can be output through the display 170 or the audio output unit 175 together with the processed video signal and the audio signal.

As another example, the user may input another type of video or audio output command through the remote control apparatus 200. That is, the user may want to watch the video signal of the camera or camcorder input through the USB input unit 113 instead of the broadcast signal. In this case, the controller 180 processes the video signal or the audio signal input through the USB input unit 113 of the signal input unit 110 through the signal processor 140 and through the display 170 or the audio output unit 175. The video / audio processor 101 may be controlled to be output.

The controller 180 may determine the user command input to the user input unit 155 formed on the image display apparatus 100 in addition to the command input through the remote control apparatus 200 and control the image display apparatus 100 to correspond thereto. Can be. For example, the user may input an on / off command, a channel change command, a volume change command, or the like, through the user input unit 155. The user input unit 155 may be formed of a button or a key formed on the image display apparatus 100. The controller 180 may determine whether the user input unit 155 is manipulated and control the image display apparatus 100 accordingly.

Content and service providers are on the rise. In this trend, service providers increasingly want to provide their own user interfaces (UIs) and graphics engines. Such content may operate independently without being associated with other applications or content.

Therefore, a specific platform such as a content service must be installed in order for a user to use the content. The content service may be dedicated to the corresponding content or may be dedicated to the corresponding service provider. In addition, a content service may be installed for quick execution or automatic execution of a content service frequently used by a user.

However, installing all content services that can be provided through the network on the video display device is most suitable for the user's convenience. There is a limit.

Accordingly, the present invention manages the information on the installed content services in a service table and provides a notification function when installing redundant services, thereby increasing the efficiency of using resources such as a memory of the video display device and making it easier for a user to provide content services. Provided are an image display device and a control method thereof that can be easily searched and used.

2A to 2C are diagrams illustrating a screen displaying a content service according to a control method of an image display apparatus according to an embodiment of the present invention.

Referring to FIG. 2A, a menu screen 210 for selecting and executing an image or various functions watched by a user is displayed on at least a portion of the display 170, and the installed content service 220 is displayed on at least a portion of the display 170. Some are shown. The user can quickly use the content service by selecting one of the installed content services 220.

In addition, the installed content service 220 displayed on one screen may be a content service included in the same service provider or the same content type, and may be set to display only content services frequently used by a user.

2B is different from FIG. 2A in which the content service 220 installed on the side of the image or menu screen 210 that the user is watching is displayed on the menu screen 230 for selecting and executing the image or various functions that the user is watching. In the embodiment, the content service 240 installed on the side is displayed.

In addition, as shown in FIG. 2C, an image is displayed on the entire screen, and the viewer can select the object in the form of an object 250 corresponding to a content service installed on at least a portion of the display 170, for example, a widget or an icon. Can be displayed. In this case, in order not to disturb the user's viewing of the image, the object 250 may be displayed in a translucent state, more preferably, different from the image and the transparency.

3 is a flowchart provided to explain a method of controlling an image display device according to an exemplary embodiment.

As described above with reference to FIG. 1, the signal input unit 110 may receive a content service through a network and display a content service that may be provided through the network on the display 170 (S310).

When receiving an installation command for receiving the first content service among the content services (S320), the controller 180 obtains information about the first content service (S330).

The information about the first content service may include information about a name of the service, a service provider, news, weather, similar images, types of contents such as photographs, an installation capacity indicating the capacity of using the memory in the image display apparatus when the content service is installed. It may include at least one of priorities among the content services.

In addition, the information about the first content service may be information extracted by the controller from the content service, periodically updated by the service provider, or prestored.

The controller 180 determines whether the same service as the first content service exists in the service table (S340).

The same service as the first content service may be set based on the same service name. In addition, the service may be set to include a content service having a similar name and having the same type of content as the first content service.

If the same service does not exist in the service table, the controller 180 registers information about the first content service in the service table (S350). The server table may be stored in a storage unit and continuously managed. have.

In this case, the method may further include installing the first content service based on the installation command.

Since there is no overlapping content service, even if it is installed, the resources of the video display device are not doubled. Therefore, if the same service that overlaps does not exist in the service table, the controller 180 directly registers the information about the first content service in the service table and installs the first content service.

If the same service as the first content service exists in the service table, the controller 180 displays information on the same service on the display 170 (S360).

Even if the content of the first content service and the content service are the same, the service providers supplying the service may be different, and accordingly, the installation capacity may be different. Accordingly, information about the same service may be displayed to allow the user to add or not install the service. It is possible to determine whether to delete or uninstall a service registered in the service table.

Accordingly, the user can efficiently manage resources such as a memory of the image display apparatus, and it is possible to prevent the user from repeatedly installing the content service without knowing that the user has already installed the same service.

With respect to the overlapping service, a content service that occupies a smaller capacity may be registered, or a content service to be registered or installed in a service table may be selected according to a preference, a fee, etc. of a service provider of a user.

When receiving the delete command for the same service (S370), the controller 180 deletes the same service existing in the service table (S380).

In addition, when receiving the addition command of the first content service (S380), the controller 180 registers information about the first content service in the service table.

4 is a diagram illustrating a content service table of an image display device according to an embodiment of the present invention.

When installing a content service provided by an arbitrary operator on the video display device, a service table is created as shown in FIG. By managing the information about the content service in the form of a table, it is easy to view and arrange the content service by each item.

Referring to FIG. 4, information about a content service registered in a service table may include at least one of a name of a service, a service provider, a type of content, an installation capacity, and a priority. In addition, it may also include additional information such as usage time for the content service, available age, memo directly input by the user, and fee information in the case of a paid service.

In addition, if the user has made an additional command even if the contents of the content service are the same, it may be registered in the service table. For example, in FIG. 4, Service 1 and Service 3 have a difference in a provider and an installation capacity, but this may be due to a difference between providers and may be substantially the same content. have.

When a new content service is added, the following line may be added in an add-on manner, or may be registered according to the service name, provider, and content type.

The service provider of the content service may be updated periodically or searched periodically by the image display apparatus. When a new service provider for providing a content service occurs, the user may be notified of this.

5 is a flowchart provided to explain a method of controlling an image display device according to an exemplary embodiment.

When a search command for the content service included in the service table is received (S510), the controller 180 causes the search criteria list to be displayed on the display 170 (S520). It is preferably a keyword included.

In addition, when a selection command for one of the search criteria lists is received (S530), the controller 180 displays the content service on the display 170 based on the selected search criteria (S540).

If the list of search criteria is displayed in a plurality of stages, the search criteria keywords for the major categories are displayed as the top menu, the search criteria keywords for the subclasses are displayed in the sub menu according to the steps, and then the corresponding search criteria are selected. The content service may be displayed.

In addition, the method for controlling an image display apparatus according to the present invention may further include the step of executing the selected content service when at least one of the displayed content services is selected so that the content service can be executed immediately after the search.

6A and 6B are diagrams schematically illustrating a screen displayed according to a control method of an image display apparatus according to an embodiment of the present invention. In more detail, the displayed screen is briefly changed according to an exemplary embodiment of the content service search command described with reference to FIG. 5.

Referring to FIG. 6A, a list of search criteria is displayed when a search command for a service table is received. In FIG. 6A, the search criteria list is displayed in the order of Provider, Contents, and Capacity, but the present invention is not limited thereto.

When a provider is selected from the search criteria list, a list of service providers such as Yahoo and Netflix is displayed. When a specific provider is selected, all corresponding content services are displayed. Here, the content services provided by a specific provider may be displayed on the same screen as the list of service providers or separately displayed on the switched screen.

Referring to FIG. 6B, which shows another embodiment, content services are displayed in a state of a content service table rearranged by a selected search criterion.

For example, when a user selects Contents among Provider, Contents, and Installation Capacity, the content services registered in the service table for each content type are rearranged and displayed. do. In addition, the same service provider may provide all of the same type of service in various cases or different service providers may provide the same content service.

In addition, the user may select one of the displayed content services based on the search criteria set by the user to immediately execute the selected content service.

According to the present invention, when adding and installing a content service by a user's preference, it is possible to avoid unnecessary service addition and installation by considering information of existing installed services, and to check and delete information of an existing installed service, and to delete a new service. It can be installed to efficiently utilize the resources of the video display device.

In addition, by allowing the added content services to be arranged according to the search criteria as desired by the user, the user may improve various service management conveniences.

The image display device and its control method according to the present invention are not limited to the configuration and method of the embodiments described as described above, but the embodiments are all or part of each embodiment so that various modifications can be made. May be optionally combined.

Meanwhile, the present invention can be embodied as processor readable codes on a processor readable recording medium included in the image display device. The processor-readable recording medium includes all kinds of recording devices that store data that can be read by the processor. Examples of the processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like, and also include a carrier wave such as transmission through the Internet. The processor-readable recording medium can also be distributed over network coupled computer systems so that the processor-readable code is stored and executed in a distributed fashion.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

1 is an internal block diagram of an image display device according to an embodiment of the present invention;

2A to 2C are diagrams illustrating a screen on which a content service is displayed according to a control method of an image display apparatus according to an embodiment of the present invention.

3 is a flowchart provided to explain a method of controlling a video display device according to an embodiment of the present invention;

4 is a diagram briefly showing a content service table of an image display device according to an embodiment of the present invention;

5 is a flowchart provided to explain a control method of an image display apparatus according to an embodiment of the present invention;

6A to 6B are diagrams schematically illustrating a screen displayed according to a control method of an image display apparatus according to an embodiment of the present invention.

Claims (18)

Displaying a content service that can be provided through a network; Receiving an installation command for receiving a first content service of the content service; Acquiring information about the first content service; Determining whether the same service as the first content service exists in a service table; And And if the same service does not exist in the service table, registering information about the first content service in the service table. The method of claim 1, And installing the first content service based on the installation command. The method of claim 1, If the same service exists in the service table, displaying information about the same service. The method of claim 3, And deleting the same service existing in the service table when receiving a deletion command for the same service. The method of claim 3, And registering the information about the first content service in the service table when receiving the addition command of the first content service. The method of claim 1, And the information about the first content service includes at least one of a name of a service, a service provider, a type of content, an installation capacity, and a priority. The method of claim 1, Receiving a search command of a content service included in the service table; Displaying a list of search criteria; And displaying a content service based on the selected search criteria when a selection command for one of the search criteria lists is received. The method of claim 7, wherein And executing the selected content service when at least one of the displayed content services is selected. The method of claim 1, And periodically updating a service provider of the content service. A display for displaying a content service; A signal input unit capable of receiving the content service through a network; A control unit which obtains information on a content service from which an installation command is received and registers it in a service table; And And a storage unit capable of storing the service table. When the control unit receives an installation command for receiving a first content service, the controller acquires information about the first content service, and if the same service as the first content service does not exist in the service table, the first content. And displaying information about a service in the service table. The method of claim 10, And the control unit installs the first content service based on the installation command. The method of claim 10, And if the same service exists in the service table, the control unit displays information regarding the same service on the display. The method of claim 12, And the controller is configured to delete the same service existing in the service table when receiving a delete command for the same service. The method of claim 12, And receiving, by the control unit, information about the first content service in the service table when receiving the addition command of the first content service. The method of claim 10, And the information regarding the first content service includes at least one of a name of a service, a service provider, a type of content, an installation capacity, and a priority. The method of claim 10, If the control unit receives a search command of a content service included in the service table, the controller displays a list of search criteria, And displaying the content service based on the selected search criteria when a selection command for one of the search criteria lists is received. The method of claim 16, The control unit. And executing at least one selected content service if at least one of the displayed content services is selected. The method of claim 10, And the controller periodically updates the service provider of the content service.

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