KR20110138938A - Method for managing contents and display apparatus thereof - Google Patents

Abstract

PURPOSE: A content management method and display apparatus using the same are provided to display content categories by downloading content from content providers. CONSTITUTION: After content information is received from plural content providers, the received information is stored(200, 210). Plural content categories which are able to receive from the content providers are displayed in an offline state(220-240) using the stored content information. One content is selected among plural content(250). A content provider server is connected in order to receive the selected content(260).

Description

Method for managing contents and display device using same

The present invention relates to a method of managing various contents and a display apparatus using the same.

With the development and commercialization of digital TV and wired / wireless network technology, which has better signal processing and storage capability than conventional analog TV, real-time broadcasting, contents on demand (COD) using the internet network connected to each household in addition to the existing radio media. Various types of content services such as games, news, and video communication can be provided to users.

An example of providing a content service using the Internet network may be an Internet Protocol TV (IPTV). The IPTV refers to transmitting a variety of information services, moving picture content and broadcasting to a user's television using a high-speed Internet network.

Recently, the concept of broadband TV, web TV, etc. has been proposed as a type of network TV which has been further developed in the IPTV. Unlike conventional IPTV, a broadband TV or a web TV has a plurality of content providers, and a user may individually access a plurality of content providers to receive various VODs, games, and the like provided by the content providers.

An object of the present invention is to provide a content management method for effectively managing user contents and a display device using the same.

Content management method according to an embodiment of the present invention, receiving and storing content information from a plurality of content providers; Displaying a list of a plurality of contents which can be received from the plurality of content providers in an offline state by using the stored content information; Receiving at least one of the plurality of contents; And accessing a corresponding content provider server to receive the selected content.

A display apparatus according to an embodiment of the present invention, the storage unit for storing information about a plurality of contents provided from a plurality of content providers; A display unit displaying a list of the plurality of contents; A user interface configured to receive at least one of the plurality of contents; And a network interface for accessing at least one server of the plurality of content providers to receive the content information and the selected content, wherein the display unit is configured to use the content information stored in the storage unit in an offline state. Display the content list.

On the other hand, the content management method may be implemented as a computer-readable recording medium recording a program for execution on a computer.

According to an embodiment of the present invention, the display device can display a list of contents that can be downloaded from a content provider (CP) even when the display device is not connected to a wired or wireless network such as the Internet. Contents can be easily managed and reproduced.

1 is a diagram illustrating a network configuration of a display system according to an exemplary embodiment of the present invention.
2 is a block diagram illustrating a configuration of a display apparatus according to an exemplary embodiment of the present invention.
3 is a diagram illustrating an embodiment of a menu screen configuration of a display device.
4 is a flowchart illustrating an embodiment of a content management method according to the present invention.
5 is a diagram illustrating a first embodiment of a method of displaying a content list.
6 is a diagram illustrating a second embodiment of a method of displaying a content list.
7 is a diagram illustrating an embodiment of a method of playing content.
8 is a diagram illustrating an embodiment of a method of displaying content detail information.

Hereinafter, a content management method and a display apparatus using the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 illustrates a configuration of a display system according to an exemplary embodiment of the present invention, and illustrates a configuration of a network TV system for receiving content from a content provider using a network.

Referring to FIG. 1, a display system according to an exemplary embodiment of the present invention may include a network operator 10, at least one contents provider (CP) 20, and at least one network TV 30. They can be connected to each other by a network, for example the Internet.

The network operator 10 may provide the network TV 30 with the software necessary for the contents provided by the content provider 20 to operate normally on the network TV 30 or the software necessary for the network TV 30 to operate. have. In addition, the content provider 20 may also provide hardware information of the network TV 30 necessary for the content to be normally executed in the network TV 30.

For example, the network operator 10 provides a basic screen frame for providing contents provided by the content providers to the network TV 30, and the user selects the content, inputs various commands, or displays the output accordingly. It can provide a user interface for doing so. In addition, the network operator 10 may also serve to provide data for updating the firmware or software of the network TV 30, and the network operator 10 may be the same subject as the manufacturer of the network TV 30. have.

The content provider 20 may generate various contents that can be provided on the network, configure the content in a format that can be played on the network TV 30, and provide contents according to a request of the network TV 30. The content according to the invention can be any multimedia content that can be serviced via a network.

For example, content provided by the content provider 20 may be provided to the network TV 30 by the content provider 20 directly through the Internet, or to the network TV 30 via the network operator 10. It may be.

The network TV 30 may be equipped with dedicated firmware for reproducing, searching, displaying a list, and the like of each content provider 20. The firmware may be installed in the network TV 30 during the manufacturing process of the network TV 30, or may be downloaded and installed by the user from the content provider 20 or the network operator 10 during use.

The firmware of the network TV 30 may be referred to as a program for playing or executing content provided by the content provider 20. The firmware may vary depending on the type of content provided by the content provider 20. For example, when the content provider 20 is a VOD provider, the firmware may be a VOD playback program. When the content provider 20 is an AOD or MOD service provider, the content provider 20 may be an AOD or MOD playback program. If the content provider 20 is a video telephone operator, it may be a video telephone program.

The network TV 30 may receive content from the content provider 20 and play or execute the content. The network TV 30 may include any display device equipped with a network module, such as a TV, a broadcast receiving device such as a set-top box, a network phone, or the like. Although the present specification describes a broadcast receiving apparatus having a broadcast receiving function as an example, embodiments of the present invention may be applied to any display apparatus capable of network connection, and all of them may be included in the scope of the present invention.

More specifically, the content provider 20 may be a provider of making or distributing various contents to be provided to the network TV 30. The content provider 20 may include a TV station, a radio station, a VOD operator, an AOD operator, a game operator, a video phone service provider, a weather information provider, a photo related service provider, and the like.

The TV station refers to a conventional terrestrial or cable broadcasting station. The broadcasting station may create and store a program that users can watch and convert it digitally.

The radio station provides audio content and may provide only audio content with or without video content.

VOD operators and AOD operators have different characteristics from TV stations and radio stations. In other words, in the case of VOD or AOD, it saves the broadcasting program, movie, and music that I want and then plays it for viewing. For example, if there is a broadcast program that is not properly viewed because there is no time for viewing the current broadcast program, the site that provides the broadcast service can be accessed by downloading the file or immediately playing the file.

The AOD provider may provide a streaming service of audio content.

Music On Demand (MOD) service providers can download and listen to the music I want.

The video telephony provider may provide a relay service for making a video call with a user of another network TV through the network. Weather providers can provide weather information for different regions, and photo service providers can provide tools for editing and storing photos.

In addition, the content provider 20 may provide various services to the network TV through the Internet, such as a packet filter (PF) server, an EPG service provider, an electronic content guide (ECG) service provider, and a portal server operator. It can be any server operator.

The PF server is serviced by a company that manages all broadcasting information and location information provided by the content provider. The service may mainly include broadcasting time of the corresponding broadcasting station or location information necessary for broadcasting, and information that a user can access.

The EPG service may provide EPG information so that a user can search a broadcast program for each time zone and grasp each channel.

The ECG service can provide the user with the information of the contents provided by the content provider, the location and access authority of the access server, for example, the function for easily accessing the servers with the contents and the information of the contents. The note can be an electronic program guide.

The portal server is a web service provided by each broadcasting station. When the portal server receives a request from the user terminal, the portal server may connect to a web server of a company that serves a broadcasting station or content. The role of the portal server is to search for a list of programs provided by each broadcasting station or a content provider providing a content service.

The network TV 30 basically has a network interface capable of accessing the network, receives an IP address, receives and processes a data packet through the network, and stores or plays the data packet when the data packet is multimedia data such as video or audio. have.

The network TV 30 may operate to transmit the user's requirements in both directions while processing the multimedia data. In addition, the user input unit such as a remote controller or an operation button for controlling the network TV 30 is preferably provided with buttons for controlling the network TV, that is, buttons for selecting various menus.

According to another embodiment of the invention, the display system as shown in FIG. 1 may not include a network operator 10, in which case the network TV 30 uses a wired or wireless network as described above to provide content providers. (20) In more detail, the content provider 20 may directly access a server to receive content.

On the other hand, the display device according to an embodiment of the present invention may be composed of a network TV 30 shown in FIG.

Hereinafter, the configuration and operation of the above-described network TV 30 will be described in detail.

2 is a block diagram illustrating a configuration of a display apparatus according to an exemplary embodiment of the present invention. For example, the configuration of the network TV 30 shown in FIG. 1 is illustrated.

The network TV 30 may have a function of receiving a broadcast signal in the form of an RF signal through a radio or a cable through the broadcast receiver 41 in addition to a function of receiving content through a network.

As shown in FIG. 2, the network TV 30 includes a broadcast receiver 41, a demultiplexer 42, a video signal processor 43, a display 44, a network interface 45, and an OSD generator. 46, a user interface 47, a storage interface 48, a storage 49, an external signal input 39, and a controller 50 may be included.

Among the above components, the broadcast receiver 41, the demultiplexer 42, and the image signal processor 43 receive a broadcast signal and process the broadcast signal in a form that can be output to the display 44 through various processes. Can be configured.

In the case of digital broadcasting, the digital broadcasting signal may be transmitted in the form of a packetized transport stream by time division multiplexing the video signal, the audio signal and the additional data.

The broadcast receiver 41 includes an antenna for receiving a broadcast signal transmitted from the outside, and a tuner for tuning a broadcast signal having a frequency band corresponding thereto according to a tuning control signal of the controller 50 to be described later, It may include a demodulator (demodulator) for outputting a broadcast signal of a specific channel in the form of a transport stream through a VSB (Vestigial Sideband) demodulation process and error correction process.

In addition, the broadcast signal received through the broadcast receiver 41 is divided into various types of additional data defined by the demultiplexer 42 as a video signal, an audio signal, and PSIP (Program and System Information Protocol) information, and the like. Can be output as

The video data separated by the demultiplexer 42 may be processed by the image signal processor 43 and displayed on the display 44.

The image signal processor 43 may include an MPEG-2 decoder and a scaler that converts the video data to match the vertical frequency, resolution, aspect ratio, and the like of the output standard of the display 44.

The display unit 44 may display an image using various types of display panels such as digital light processing (DLP), liquid crystal display (LCD), plasma display panel (PDP), and the like.

The audio signal is processed by a voice signal processor (not shown) and output to the speaker. The voice signal processor may include an AC-3 decoder.

Meanwhile, the additional data included in the additional data separated through the demultiplexer 42 may be stored in the storage 49 through the storage interface 48 to be described later.

The storage unit 49 may be implemented by an electrically erasable programmable read-only memory (EEPROM).

The user interface unit 47 is a means for receiving a request command from a user. In general, the user interface unit 47 may include an infrared receiver for receiving an infrared signal input through a remote controller or a local key input unit provided at one side of the panel.

The network interface unit 45 may receive content or data from the content provider 20 or the network operator 10 through a network. For example, the server may be connected to a server of the content provider 20 through a wired or wireless network such as the Internet, and may receive content such as broadcasts, games, VODs, broadcast signals, and related information provided from the content provider server. .

In addition, the network interface unit 45 may also receive the update information and the update file of the firmware provided by the network operator 10.

The OSD generator 46 may generate a menu screen for receiving a user's determination signal in the form of an OSD.

That is, the OSD generator 46 may display the information related to the content received through the network interface 45 through the display 44.

The external signal input unit 39 is an interface capable of receiving input from another playback device such as a DVD player, a game machine, and the like. The external signal input unit 39 connects another playback device to the external signal input unit 39 to display the multimedia stored in the playback device. It can be output as (44).

The controller 50 may perform overall operation control according to a command input from the user interface 47. The controller 50 may receive and execute an update file of software, that is, firmware, of the content provider 20 received from the network operator 10.

According to an embodiment, the broadcast reception device 40 according to the present invention may output a 3D image. The menu screen of the broadcast reception device 40 may be provided in 3D, and the content provided by the content provider 20 may also receive and output 3D content. Meanwhile, additional components may be needed to output the 3D image.

According to an exemplary embodiment of the present invention, the display device, for example, the network TV 30, is connected to a plurality of contents that can be received from the content providers 20 even in an offline state not connected to a wired or wireless network such as the Internet. To display a list.

For example, a display apparatus according to an embodiment of the present invention receives and stores content information from a plurality of content providers 20, and receives a plurality of content information from the plurality of content providers 20 using the stored content information. The list of contents may be displayed in an offline state, and at least one of the plurality of contents may be selected and connected to a corresponding content provider server to receive the selected contents.

For that purpose, the storage unit 49 stores information on the plurality of contents received from the plurality of content providers 20 through the network interface unit 47, and the display unit 44 according to the user's request. In the offline state, the list of the plurality of contents may be displayed using the content information stored in the storage 49.

In addition, the user interface unit 47 may receive at least one of a plurality of contents displayed in the content list from the user, and the network interface unit 45 may receive the selected content by accessing a server of the corresponding content provider. .

On the other hand, the menu screen of the network TV 30 according to an embodiment of the present invention is an operation of providing a menu so that the network TV 30 can select and access one of a plurality of content providers (CP) This is the initial screen or main screen when entering the mode.

The menu screen may include a plurality of icons 212 representing a plurality of content providers, and in some embodiments, may also include a background image 201 having a specific theme.

3 illustrates an embodiment of a menu screen configuration of the display apparatus, and shows a menu screen of the network TV 30.

Referring to FIG. 3, a city-themed image may be used as the background image 101 of the menu screen, and icons 112 representing content providers may be displayed on the front surface of the menu screen.

The background image of the menu screen may have a specific theme. In addition to the city illustrated in FIG. 3, the menu image may have various themes such as a jungle, a department store, a beach, a universe, and a fairy tale scene. The background image may include graphic objects capable of selectively inserting and displaying an image different from the base image according to the subject.

The icons 112 are buttons for accessing a plurality of content provider servers, and a user may access a server of a selected content provider by selecting one of the icons 112 and receive a desired service. Preferably, icon 112 may also be associated with background image 101. That is, the icon 112 may be composed of graphic objects that match the theme of the background image 112.

For example, as shown in FIG. 3, the icons 112 may be displayed in the form of a billboard or a structure erected on a city street. The image displayed on the icon 112 may be provided by each content provider.

When the background image 101 is changed according to user information, for example, a region, the icons 112 or the image displayed on the icon 112 may also be changed.

In FIG. 3, as an example of content providers, icons of content providers, such as natural geographic 102, weather information 103, netfly 104, pecasa 105, and yaw 106, are displayed.

Natural geographic 102 is a content provider that provides content related to natural sciences, weather information 103 is a content provider that provides weather information, and Netfly 104 is a content provider that provides movie-related content, Pecasa ( 105 may be a content provider providing content related to a photo, and the YouTube tube 106 may be a content provider providing content related to a Video on Demand (VOD).

Meanwhile, in addition to the above icons, the menu screen may additionally display various types and numbers of icons. Scroll bars 107a and 107b may be disposed on the left and right sides of the icons 112 to display additional icons when the user selects the scroll bars 107a and 107b.

According to an exemplary embodiment, an image display area capable of displaying another image on a part of the background image 101 may be defined, and other images displaying an advertisement image or a message may be displayed on the image display area as necessary. have. The advertisement image may include an advertisement, and the other image may include any information or guidance message. The advertisement image or other image may be provided by the network operator 10 or the content provider 20.

According to an embodiment of the present invention, the image display area may be disposed at any position of the background image 101, and may be disposed at an appropriate position in consideration of the subject matter of the background image 101. For example, as illustrated in FIG. 3, an image display area 109 may be disposed at an outdoor billboard and the advertisement image 110 may be displayed.

The image display area may be configured in various forms according to the subject of the background image 101. The image display area may be disposed in a pond or a tree commonly seen in a park when the subject of the background image 101 is a park, and a show window commonly found in a department store when the subject of the background image 101 is a department store. Can be placed in.

As described above, by displaying an image in the image display area 109 and displaying the image to be in harmony with the background image 201, a user can display a message or an advertisement without being bored.

When the user selects one of the icons 112, such as the netfly icon 104, the selected icon 104 may be highlighted to distinguish it from other icons. When the selected icon 104 is highlighted, the arrow button of the gesture recognition remote controller is operated or when another icon is selected, the highlight can be moved to the selected icon.

Meanwhile, the number, size, position, and arrangement method of icons displayed on one screen may vary according to embodiments.

The icons 112 may include a name or an image for identifying each content provider, and may be embedded and sold in the network TV 30 sold by the manufacturer of the network TV 30. In addition, according to an embodiment, while the user purchases and uses the network TV 30, the network operator 10 receives an image to be used as an icon from the content provider 20 and transmits or updates the image to the network TV 30. You may.

In addition, the network TV 30 may be directly connected to the server of the content provider 20 to download.

When the network TV 30 is in an online state connected to a wired or wireless network such as the Internet, the user selects an icon corresponding to a desired content provider among the icons 112 displayed on the screen, and accordingly, the network TV ( 30 may access a server of a content provider corresponding to the selected icon and display a list of contents that can be received from the content provider.

4 is a flowchart illustrating a content management method according to an exemplary embodiment of the present invention. The illustrated content management method will be described with reference to the configuration of the display apparatus of FIG. 2.

Referring to FIG. 4, the network interface unit 45 receives content information from the plurality of content providers 20 (step 200).

For example, the network interface unit 45 provided in the network TV 30 connects to a server corresponding to each of the plurality of content providers 20 at predetermined intervals, and provides the corresponding content from the connected content provider server. The provider may receive information on a plurality of contents that can be provided by the provider. The content information receiving period may be set or changed by a user.

The content provider server connected to receive the content information may be a server previously accessed by the user or a server of a content provider preset by the user.

In addition, the received content information is the name of the content, Uniform Resource Locator (URL) information that is the location information that can receive the content, the user's previous purchase history for the content, the expiration period in the case of already purchased content or Rating information and the like.

The controller 50 stores the content information about the plurality of contents received through the network interface 45 in the storage 49 using the storage interface 48 (step 210).

When the user requests the display of a list of contents that can be received using the user interface unit 47 (step 220), when the network TV 30 is offline (step 230), the display unit In operation 240, the controller 44 displays a list of the plurality of contents using the content information stored in the storage 49 under the control of the controller 50.

For example, when the network TV 30 is online, the user may select any one of the plurality of content providers 20 and check a list of contents that can be received from the corresponding content provider. The 30 may access the corresponding content provider server using the connected network and receive content information therefrom.

In addition, even when the network TV 30 is not connected to a wired or wireless network such as the Internet, the user wants to play or purchase a list after checking a list of a plurality of contents provided from the plurality of content providers 20. You can select the content to be.

That is, when the user requests the display of the content list, the network TV 30 displays the information about the plurality of contents stored in the storage 49 without accessing content provider servers through the Internet or the like. ) To provide a list of content to the user.

Thereafter, the user interface unit 47 selects one of a plurality of contents included in the content list from the user (step 250), and the network interface unit 47 is controlled by the controller 50 to select the selected content. In step 260, the server accesses the content provider server corresponding to the content provider server.

5 and 6 illustrate embodiments of a method of displaying a content list in step 240.

Referring to FIG. 5, in response to a request for displaying a content list of a user in an offline state, information on a plurality of contents that can be received from a plurality of content providers may be displayed on the screen 300 of the network TV 30. have.

That is, the network TV 30 may predetermine information about each of the plurality of contents providers 'Contents 1' to 'Contents 10' that are received from a plurality of content providers, for example, each of 'CP1', 'CP2', and 'CP3'. Can be received and stored in the storage unit 49, and if there is a user's request for displaying the content list in an offline state, as shown in FIG. 5, a content list including the name of each content and information on the corresponding content provider is displayed. 300 can be displayed.

Accordingly, the user can easily grasp a plurality of contents that can be received from a plurality of content providers even in an offline state of the network TV 30.

Referring to FIG. 6, the content list as described above may be displayed separately for each of a plurality of content providers.

For example, when the content information stored in the storage unit 49 of the network TV 30 is information about contents that can be received from a plurality of content providers 'NETFLY', 'PECASA' and 'YOTUBE', the screen 300 ) CP buttons 310, 320, and 330 corresponding to each of the plurality of content providers may be displayed on the screen, and the user may select one of the CP buttons 310, 320, and 330. You can check the list of contents that can be received from the content provider.

As shown in FIG. 6, when the user selects the 'NETFLY' CP button 310, 'The Sum of All Fears' and 'Fired up' which are contents that can be received from the 'NETFLY' on the screen 300. The information 311 to 316 for each of 'Revolutionary Road', 'Alice in wanderland', 'Defiance' and 'Titan' may be displayed in the content list.

Meanwhile, the content information displayed on the screen 300 may further include not only the name of the corresponding content but also a purchase expiration period or rating information.

For example, as illustrated in FIG. 6, the contents already purchased by the user, 'The Sum of All Fears', 'Fired up', and 'Revolutionary Road' may include the remaining contents that are not purchased and highlights. It may be displayed to be distinguished using a method, and 'Fired up' among purchased contents may be displayed together with an expiration period 'Today 8:55 pm'.

In addition, among the contents displayed on the screen 300, contents in which rating information exists, for example, 'Revolutionary Road', may be displayed together with a rating information of '19 years old or older '.

According to one embodiment of the invention, the user can select and play any one of the plurality of contents displayed on the screen 300, for this purpose, the network TV 30 to the content provider server that provides the content The selected content may be received by accessing.

According to another embodiment of the present invention, the user may select two or more contents among the plurality of contents included in the content list as described above, and in this case, continuous playback of the two or more selected contents may be possible.

On the other hand, when the user selects content that has already been purchased among the plurality of contents displayed on the screen 300, the network interface unit 45 of the network TV 30 is connected to a content provider server that provides the corresponding content. Receive the selected content, and the display unit 44 may play the received content.

Referring to FIG. 7, when the user selects the purchased content from the content list, the network interface 45 may correspond to the selected content by using location information stored in the storage 49, for example, URL information. The selected content may be received by accessing a content provider server that provides content.

On the other hand, when the user selects content not purchased from among a plurality of contents displayed on the screen 300, the network TV 30 may display detailed information about the selected content.

Referring to FIG. 8, when a user selects content not previously purchased from the content list, the controller 50 displays detailed information about the content by using information stored in the storage 49 corresponding to the selected content. 300 can be displayed. Accordingly, the user may request a purchase of the selected content.

In addition, the above-described content management method according to the present invention can be stored in a computer-readable recording medium produced as a program to be executed in a computer, examples of the computer-readable recording medium are ROM, RAM, CD- ROMs, magnetic tapes, floppy disks, optical data storage devices, and the like, and also include those implemented in the form of carrier waves (eg, transmission over the Internet).

The computer readable recording medium can be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. In addition, functional programs, codes, and code segments for implementing the broadcast reception method may be easily inferred by programmers in the art to which the present invention belongs.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

Claims (11)

In the method for managing content in a display device connectable to a network,
Receiving and storing content information from a plurality of content providers;
Displaying a list of a plurality of contents which can be received from the plurality of content providers in an offline state by using the stored content information;
Receiving at least one of the plurality of contents; And
Accessing a corresponding content provider server to receive the selected content. The method of claim 1, wherein the storing step
And receiving the content information by accessing a server of each of the plurality of content providers at regular intervals. The method of claim 1, wherein the content information is
And at least one of a name of the content, Uniform Resource Locator (URL) information, a purchase history, an expiration period, and rating information. The method of claim 1, wherein the displaying step
And displaying the content list separately for each of the plurality of content providers. The method of claim 1, wherein the displaying step
And displaying at least one content purchased by a user from the plurality of contents separately from the other contents. The method of claim 1,
If the selected content is content purchased by the user,
The access step is connected to the corresponding content provider server using the stored URL information to receive the selected content,
The content management method further comprises the step of playing the received content. The method of claim 1,
If the selected content is content not purchased by the user,
And displaying detailed information on the selected content by using the stored content information. A storage unit which stores information on a plurality of contents provided from the plurality of content providers;
A display unit displaying a list of the plurality of contents;
A user interface configured to receive at least one of the plurality of contents; And
A network interface configured to access at least one server of the plurality of content providers and receive the content information and the selected content,
The display unit displays the content list by using the content information stored in the storage in the offline state. The method of claim 8, wherein the content information is
And at least one of a name of the content, uniform resource locator information, a purchase history, an expiration period, and rating information. The method of claim 9, wherein the network interface unit
If the selected content is content purchased by the user,
A display device for accessing a content provider server to receive the selected content using the URL information stored in the storage. The method of claim 8, wherein the display unit
If the selected content is content not purchased by the user,
And displaying detailed information on the selected content by using the stored content information.

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