JP6116011B2 - Content display system, content storage device, and information terminal - Google Patents

Description

  The present invention relates to a content display system, a content storage device, an information terminal, a content display method, and a program, and more particularly to a content display system, a content storage device, an information terminal, a content display method, and a program that display broadcast content.

  In recent years, with the spread of digital terrestrial television broadcasting, it has become popular to view broadcast programs on television and also view data broadcasts related to broadcast programs. Furthermore, a system that receives content information related to a broadcast program on a television and receives information related to the broadcast program in a personal computer, a PDA (Personal Digital Assistant) terminal, a mobile phone terminal, a smart phone terminal, or the like is also under study. By doing in this way, the viewer can check related information using a smartphone terminal or the like while watching a broadcast program on a television.

  Patent Document 1 discloses a TV program synchronization in which a broadcast storage reception output device that receives a broadcast wave outputs a broadcast program to a TV, and further outputs content related to the broadcast program displayed on the TV to a mobile terminal device. A configuration of the cooperation system is disclosed. The mobile terminal device constituting the system disclosed in Patent Document 1 has a remote control function, and transmits broadcast channel identification information input to the mobile terminal device to the television device. Thereby, the broadcast program displayed on the television device can be synchronized with the content information displayed on the mobile terminal device.

JP 2007-36523 A

  However, the television program synchronization cooperation system disclosed in Patent Document 1 has a problem that the timing at which information is displayed cannot be synchronized between the mobile terminal device and the television device. For example, when broadcast channel identification information is input to a mobile terminal device that implements a remote control function, the information displayed on the mobile terminal device is immediately switched, and the television device that receives the broadcast channel identification information from the mobile terminal device It is conceivable that it takes time to display a broadcast program of a designated broadcast channel. Therefore, when the mobile terminal device provides a service for displaying content related to the broadcast program displayed on the television device, when the broadcast channel of the television device is switched, the broadcast channel is set in the television device. Before switching, information displayed on the mobile terminal device may be switched.

  In order to solve the above problems, an object of the present invention is to provide a content display system, a content storage device, an information terminal, a content display method, and a program capable of synchronizing the display of a television device and the display of a mobile terminal device. It is to provide.

  A content display system according to a first aspect of the present invention includes: a broadcast content display device that displays broadcast content; and a communication device that displays related content that is information related to the broadcast content. The broadcast content display device detects that the second broadcast content is in a displayable state when the currently displayed first broadcast content is switched to the second broadcast content; The related content is displayed after detecting that the second broadcast content can be displayed.

  In the content storage device according to the second aspect of the present invention, in the broadcast content display device, the detection unit that detects that the first broadcast content is switched to the second broadcast content, and the first broadcast content is the second. A state in which the second broadcast content can be displayed from the content receiving unit that receives related content that is information related to the second broadcast content and the broadcast content display device. A message receiving unit that receives a content switching completion message that notifies that the content switching completion message is received, and a terminal communication unit that transmits the related content related to the second broadcast content to an information terminal when receiving the content switching completion message , Are provided.

  The information terminal according to the third aspect of the present invention, in the broadcast content display device, when the first broadcast content is switched to the second broadcast content, before the switching operation in the broadcast content display device is completed, Content for notifying that the second broadcast content can be displayed from the storage unit that acquires and stores related content that is information related to the second broadcast content and the broadcast content display device A message receiving unit that receives a switching completion message; and a reproduction unit that reproduces the related content related to the second broadcast content when the content switching completion message is received.

  The content display method according to the fourth aspect of the present invention is capable of displaying the second broadcast content when the first broadcast content currently displayed on the broadcast content display device is switched to the second broadcast content. In this case, the related content, which is information related to the second broadcast content, is acquired, and the acquired related content is displayed.

  The program according to the fifth aspect of the present invention is capable of displaying the second broadcast content when the first broadcast content currently displayed on the broadcast content display device is switched to the second broadcast content. , The related content that is information related to the second broadcast content is acquired, and the computer is caused to display the acquired related content.

  According to the present invention, it is possible to provide a content display system, a content storage device, an information terminal, a content display method, and a program that can synchronize the display of the television device and the display of the mobile terminal device.

1 is a configuration diagram of a content display system according to a first exemplary embodiment. It is a block diagram of the content display system concerning Embodiment 2. It is a block diagram of the broadcast content display apparatus concerning Embodiment 2. It is a block diagram of the content storage apparatus concerning Embodiment 2. FIG. It is a figure which shows the flow of the content display process concerning Embodiment 2. FIG. It is a block diagram of the content storage apparatus concerning Embodiment 3. FIG. 6 is a configuration diagram of an information terminal according to a third embodiment. It is a figure which shows the flow of the content display process concerning Embodiment 3. FIG.

(Embodiment 1)
Embodiments of the present invention will be described below with reference to the drawings. First, a configuration example of the content display system according to the first exemplary embodiment of the present invention will be described with reference to FIG. The content display system in FIG. 1 includes a broadcast content display device 10 and a communication device 20.

  The broadcast content display device 10 is a device that displays broadcast content. Broadcast content is, for example, content data related to a television program transmitted from a radio tower via a wireless line. The broadcast content display device may be a television device, for example. Alternatively, the broadcast content display device may be a computer device having a digital television tuner. The broadcast content display device 10 decodes the received broadcast content and displays it on a display unit such as a liquid crystal display.

  The communication device 20 is a device that displays related content that is information related to broadcast content. The related content is information that supplements the content of the broadcast content, and may be, for example, video data, numerical data, or character data. For example, the communication device 20 may receive related content data transmitted from a radio tower via a wireless line, or may receive related content data via another communication device.

  Next, operations of the broadcast content display device 10 and the communication device 20 will be described. The broadcast content display device 10 can switch the broadcast content to be displayed. For example, the broadcast content display apparatus 10 may change the broadcast content to be displayed when a viewer inputs channel information using a remote controller or the like. The broadcast content currently displayed on the broadcast content display device 10 is the pre-switching broadcast content, and the post-switching broadcast content is the post-switching broadcast content.

  Here, the broadcast content display apparatus 10 requires a predetermined time for the switching process when switching the broadcast content to be displayed. For example, the switching process may include a process for specifying broadcast content corresponding to input channel information, a process for receiving the specified broadcast content, a process for decoding the specified broadcast content, and the like. For example, the predetermined time may be about several seconds.

  The communication device 20 detects that the broadcast content display device 10 is ready to display the broadcast content after switching. For example, when the broadcast content display device 10 transmits a message notifying that the broadcast content after switching has been displayed, the communication device 20 receives the transmitted message, thereby transmitting the broadcast content display device. 10, it may be detected that the broadcast content after switching can be displayed. Alternatively, the communication device 20 may receive a message transmitted from the broadcast content display device 10 via another communication device.

  The communication device 20 displays related content related to the post-switching broadcast content after detecting that the post-switching broadcast content can be displayed in the broadcast content display device 10.

  As described above, by using the content display system of FIG. 1, the display timing of broadcast content on the broadcast content display device 10 and the display timing of related content on the communication device 20 can be synchronized. Therefore, the communication device 20 displays the post-switching broadcast content on the broadcast content display device 10 or substantially displays the post-switching broadcast content on the broadcast content display device 10 at the same time as the post-switching broadcast content. Related related content can be displayed. As a result, when switching the broadcast content to be displayed on the broadcast content display device 10, the event that the related content related to the post-switching broadcast content is displayed on the communication device 20 before the switching process on the broadcast content display device 10 is completed. Can be prevented.

(Embodiment 2)
Next, a configuration example of the content display system according to the second exemplary embodiment of the present invention will be described with reference to FIG. The content display system of this figure has a broadcast content display device 10, an information terminal 40, and a content storage device 30. The broadcast content display device 10 is the same as the broadcast content display device 10 of FIG. Further, the communication device 20 in FIG. 1 corresponds to the content storage device 30 and the information terminal 40. The content storage device 30 may be connected to the broadcast content display device 10 and the information terminal 40 using a wired LAN (Local Area Network) or a wireless LAN.

  The content storage device 30 stores related content related to the broadcast content displayed on the broadcast content display device 10. For example, the broadcast content display apparatus 10 may receive the related content via a wireless line when the broadcaster distributes the related content together with the broadcast content. Furthermore, when the content storage device 30 detects that the broadcast content displayed on the broadcast content display device 10 is switched, the content storage device 30 may receive related content related to the post-switching broadcast content. Specifically, the content storage device 30 may select and receive related content related to the post-switching broadcast content when a plurality of related content is received.

  When the broadcast content display device 10 becomes capable of displaying the post-switching broadcast content, the information terminal 40 acquires related content related to the post-switching broadcast content stored in the content storage device 30. The information terminal 40 displays the acquired related content. For example, when the content storage device 30 detects that the broadcast content after switching is ready to be displayed on the broadcast content display device 10, the content storage device 30 transmits related content related to the broadcast content after switching to the information terminal 40. Also good. The information terminal 40 may be a mobile phone terminal, a smart phone terminal, a PDA (Personal Digital Assistant) terminal, or a computer device such as a personal computer.

  Next, a configuration example of the broadcast content display apparatus 10 according to the second exemplary embodiment of the present invention will be described with reference to FIG. The broadcast content display device 10 includes a broadcast content receiving unit 11 and a communication unit 12.

  The broadcast content receiving unit 11 receives broadcast content distributed from a broadcaster or the like via a wireless line. The broadcast content receiving unit 11 may include an antenna for receiving wireless data, a tuner for receiving broadcast content corresponding to a desired channel, and the like. When the channel is switched, the broadcast content receiving unit 11 receives broadcast content corresponding to the channel after switching, which is different from the currently received broadcast content. In addition, the broadcast content receiving unit 11 displays the received broadcast content.

  The communication unit 12 transmits to the content storage device 30 a channel information notification message for notifying that the broadcast content to be displayed is switched and a switching completion information notification message for notifying that the post-switching broadcast content is ready to be displayed. To do.

  Next, a configuration example of the content storage device 30 according to the second exemplary embodiment of the present invention will be described with reference to FIG. The content storage device 30 includes a detection unit 31, a related content reception unit 32, a related content storage unit 33, a message reception unit 34, and a terminal communication unit 35.

  The detection unit 31 receives the channel information notification message transmitted from the broadcast content display device 10. By receiving the channel information notification message, the detection unit 31 detects that the currently displayed broadcast content is switched to a different broadcast content in the broadcast content display device 10. The detection unit 31 outputs channel information corresponding to the post-switching broadcast content to the related content reception unit 32.

  When the related content receiving unit 32 receives the channel information corresponding to the post-switching broadcast content, the related content receiving unit 32 receives the related content corresponding to the received channel information. Specifically, it is assumed that the related content receiving unit 32 receives related content related to the pre-switching broadcast content. Related content is, for example, content distributed by a broadcaster via a wireless line together with broadcast content. When the related content receiving unit 32 receives the channel information, the related content receiving unit 32 stops receiving the related content currently received, and receives the related content related to the post-switching broadcast content.

  When the related content receiving unit 32 receives related content related to the broadcast content after switching, the related content receiving unit 32 stores the received related content in the related content storage unit 33. The related content storage unit 33 may be, for example, a memory provided in the content storage device 30 or a storage medium device connected to the outside of the content storage device 30.

  The message receiving unit 34 receives the switching completion information notification message transmitted from the broadcast content display device 10. By receiving the switching completion information notification message, the message receiving unit 34 detects that the broadcast content after switching is in a displayable state in the broadcast content display device 10. The message receiving unit 34 outputs to the terminal communication unit 35 the switching completion information notification message or information indicating that the broadcast content after switching is in a displayable state in the broadcast content display device 10.

  When the terminal communication unit 35 receives the switching completion information notification message from the message receiving unit 34 or information indicating that the broadcast content after switching is ready to be displayed in the broadcast content display device 10, the terminal communication unit 35 stores the information in the related content storage unit 33. The related content related to the broadcast content after switching is transmitted to the information terminal 40.

  In FIG. 4, the detection unit 31 and the message reception unit 34 are described as different components, but the detection unit 31 and the message reception unit 34 are common as communication units that communicate with the broadcast content display device 10. It may be a component.

  Subsequently, a flow of content display processing in the content display system according to the second exemplary embodiment of the present invention will be described with reference to FIG. First, the broadcast content display apparatus 10 determines a channel after switching (S11). Next, the broadcast content display device 10 transmits a channel information notification message in which the channel information after switching is set to the content storage device 30 (S12).

  After transmitting the channel information notification message to the content storage device 30, the broadcast content display device 10 starts a channel switching operation (S13). The channel switching operation may be, for example, processing for specifying broadcast content corresponding to channel information after switching, processing for decoding the specified broadcast content, and the like. Next, the broadcast content display apparatus 10 completes the channel switching operation (S14). Completion of the channel switching operation may be, for example, that the broadcast content after switching can be displayed.

  Next, the broadcast content display device 10 transmits a switching completion information notification message to the content storage device 30 (S15). Next, the broadcast content display apparatus 10 displays the post-switching broadcast content (S16).

  Upon receiving the channel information notification message in step S12, the content storage device 30 receives related content corresponding to the channel after switching set in the channel information notification message (S17). The content storage device 30 stores the received related content in the related content storage unit 33. Next, when receiving the switching completion information notification message in step S15, the content storage device 30 transmits the related content stored in the related content storage unit 33 to the information terminal 40 (S18).

  When receiving the related content in step S18, the information terminal 40 displays or reproduces the received related content (S19).

  As described above, by using the content display system according to the second exemplary embodiment of the present invention, the broadcast content display apparatus 10 is in a state in which it can display the post-switching broadcast content after the channel switching operation is completed. After that, the switching completion information notification message is transmitted to the content storage device 30. Furthermore, when receiving the switching completion information notification message, the content storage device 30 transmits related content related to the post-switching broadcast content to the information terminal 40. By operating in this way, the information terminal 40 can display related content related to the post-switching broadcast content in synchronization with the timing of displaying the post-switching broadcast content in the broadcast content display device 10. Therefore, it is possible to prevent display of related content related to the post-switching broadcast content on the information terminal 40 before the broadcast content displayed on the broadcast content display device 10 is switched.

  In the second embodiment, the content storage device 30 receives the channel information notification message transmitted from the broadcast content display device 10 that the broadcast content displayed on the broadcast content display device 10 is switched. The operations that can be detected have been described. However, the content storage device 30 may detect that the broadcast content displayed on the broadcast content display device 10 is switched using a different method.

  For example, it is assumed that both the broadcast content display device 10 and the content storage device 30 have an infrared receiving unit that can receive infrared rays transmitted from a remote control device operated by a viewer. In such a case, the broadcast content display device 10 and the content storage device 30 can receive the channel information after switching transmitted from the remote control device. That is, the content storage device 30 does not receive the channel information notification message transmitted from the broadcast content display device 10 but receives the channel information after switching transmitted from the remote control device. It may be detected that the broadcast content to be displayed is switched.

(Embodiment 3)
Next, a configuration example of the content storage device 50 according to the third embodiment of the present invention will be described with reference to FIG. The content storage device 50 includes a detection unit 31, a related content reception unit 32, and a terminal communication unit 35. That is, the content storage device 50 has a configuration in which the related content storage unit 33 and the message reception unit 34 are excluded from the content storage device 30 described with reference to FIG.

  The detection unit 31 receives the channel information notification message transmitted from the broadcast content display device 10. The detection unit 31 outputs channel information corresponding to the post-switching broadcast content to the related content reception unit 32. When the related content receiving unit 32 receives the channel information corresponding to the post-switching broadcast content, the related content receiving unit 32 receives the related content corresponding to the received channel information. When the related content receiving unit 32 receives related content related to the broadcast content after switching, the related content receiving unit 32 outputs the received related content to the terminal communication unit 35.

  When the terminal communication unit 35 receives the related content related to the post-switching broadcast content output from the related content receiving unit 32, the terminal communication unit 35 transmits the received related content to the information terminal 60.

  That is, unlike the content storage device 30, the content storage device 50 transmits related content related to the post-switching broadcast content to the information terminal 60 without receiving the switching completion information notification message.

  Subsequently, a configuration example of the information terminal 60 according to the third embodiment of the present invention will be described with reference to FIG. The information terminal 60 includes a related content storage unit 61, a message reception unit 62, and a related content reproduction unit 63.

  The related content storage unit 61 stores related content transmitted from the content storage device 50. The related content transmitted from the content storage device 50 is related content related to the post-switching broadcast content in the broadcast content display device 10. The message receiving unit 62 receives the switching completion information notification message transmitted from the broadcast content display device 10. When the message receiving unit 62 receives the switching completion information notification message, the message receiving unit 62 sends the received switching completion information notification message or a message indicating that the broadcast content displayed on the broadcast content display device 10 has been switched to the related content reproduction unit 63. Output.

  When the related content playback unit 63 receives the switching completion information notification message output from the message receiving unit 62 or the message indicating that the broadcast content displayed on the broadcast content display device 10 has been switched, the related content storage unit 61 Get related content stored in. The related content reproduction unit 63 reproduces the acquired related content.

  Next, the flow of content display processing according to the third embodiment of the present invention will be described with reference to FIG. Steps S21 to S26, which are processes in the broadcast content display device 10, are the same as steps S11 to S16 in FIG.

  When receiving the channel information notification message in step S22, the content storage device 50 receives related content corresponding to the channel after switching set in the channel information notification message (S27). Next, the content storage device 50 transmits the received related content to the information terminal 60 (S28). Next, the information terminal 60 stores the related content transmitted from the content storage device 50 in the related content storage unit 61 (S29).

  Next, when receiving the switching completion information notification message in step S25, the information terminal 60 extracts the related content stored in the related content storage unit 61 in step S29, and reproduces the extracted related content (S30).

  As described above, the content storage device 50 according to the third embodiment of the present invention transmits the received related content to the information terminal 60 without receiving the switching completion information notification message. The information terminal 60 includes a related content storage unit 61 that stores related content transmitted from the content storage device 50. Therefore, when the information terminal 60 receives the switching completion information notification message transmitted from the broadcast content display device 10, the information terminal 60 can reproduce the related content stored in the related content storage unit 61.

  In the content display system according to the second embodiment, the content storage device 30 transmits the related content to the information terminal 60 after receiving the switching completion information notification message. However, the content display system according to the third embodiment When the information terminal 60 receives the switching completion information notification message, the related content that has already been stored can be reproduced. Therefore, in the content display system according to the third embodiment, compared to the content display system according to the second embodiment, after the broadcast content is switched in the broadcast content display device 10, the information terminal 60 displays the switched broadcast content. The period for displaying or playing back related content can be shortened.

  In the above-described embodiments, the present invention has been described as a hardware configuration, but the present invention is not limited to this. The present invention can also be realized by causing a CPU (Central Processing Unit) to execute a computer program for the processing in each device described with reference to FIGS. 5 and 8. )

  In the above example, the program can be stored and supplied to a computer using various types of non-transitory computer readable media. Non-transitory computer readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic recording media (for example, flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (for example, magneto-optical disks), CD-ROMs (Read Only Memory), CD-Rs, CD-R / W, semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (Random Access Memory)) are included. The program may also be supplied to the computer by various types of transitory computer readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves. The temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.

  Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.

(Supplementary Note 1) A broadcast content display device that displays broadcast content, and a communication device that displays related content that is information related to the broadcast content. The communication device displays the current content in the broadcast content display device. When the first broadcast content is switched to the second broadcast content, it is detected that the second broadcast content can be displayed, and the second broadcast content can be displayed. A content display system for displaying the related content after detecting that it has become.
(Supplementary Note 2) When the communication device detects that the first broadcast content is switched to the second broadcast content in the broadcast content display device, the communication device displays the related content related to the second broadcast content. A content storage device for receiving and an information terminal for displaying the related content, wherein the information terminal can acquire the related content stored in the content storage device and display the second broadcast content The content display system according to appendix 1, wherein the related content is displayed after entering a state.
(Supplementary Note 3) The broadcast content display device transmits a content switching completion message notifying that the second broadcast content is ready to be displayed to the content storage device, and the content storage device The content display system according to appendix 2, wherein when the switching completion message is received, related content related to the second broadcast content is transmitted to the information terminal.
(Supplementary Note 4) The broadcast content display device transmits a content switching completion message notifying that the second broadcast content is ready to be displayed to the information terminal, and the information terminal displays the broadcast content display A related content related to the second broadcast content is acquired in advance from the content storage device that has detected that the first broadcast content is switched to the second broadcast content in the device, and the content switch completion message is received. The content display system according to attachment 2, wherein when received, the related content related to the second broadcast content is displayed.
(Additional remark 5) The content acquisition part which acquires the related content which is the information relevant to the broadcast content displayed in a broadcast content display apparatus, and the 1st broadcast content currently displayed in the said broadcast content display apparatus is 2nd When switching to the broadcast content, the state detection unit that detects that the second broadcast content can be displayed and the second broadcast content can be displayed on the broadcast content display device. And a content display unit that displays related content related to the second broadcast content after detecting that.
(Supplementary Note 6) In the broadcast content display device, when it is detected that the first broadcast content is switched to the second broadcast content, and the detection unit that detects that the first broadcast content is switched to the second broadcast content. A content receiving unit that receives related content, which is information related to the second broadcast content, and a content switching completion that notifies the broadcast content display device that the second broadcast content is ready to be displayed A content storage device comprising: a message receiving unit that receives a message; and a terminal communication unit that transmits the related content related to the second broadcast content to an information terminal when the content switching completion message is received.
(Additional remark 7) The content storage part which stores the said related content is further provided, and the said terminal communication part will transmit the said related content stored in the said content storage part to the said information terminal, if the said content switch completion message is received The content storage device according to attachment 6.
(Supplementary Note 8) In the broadcast content display device, when the first broadcast content is switched to the second broadcast content, before the switching operation in the broadcast content display device is completed, the broadcast content display device is related to the second broadcast content. A storage unit for acquiring and storing related content as information, and a message receiving unit for receiving a content switching completion message for notifying that the second broadcast content can be displayed from the broadcast content display device And a playback unit that plays back the related content related to the second broadcast content when the content switching completion message is received.
(Additional remark 9) The said storage part is the content which acquired the related content which is the information relevant to the said 2nd broadcast content, when the 1st broadcast content is switched to a 2nd broadcast content in a broadcast content display apparatus. The information terminal according to appendix 8, wherein the related content is acquired from a storage device.
(Additional remark 10) When switching the display part which displays broadcast content, and the 1st broadcast content currently displayed on the said display part to 2nd broadcast content, it will be in the state which can display said 2nd broadcast content. A message generation unit that generates a content switching message for notifying that the content switching message has been received, and a related content storage device that stores related content that is information related to the second broadcast content, or the related content is displayed. Broadcast content display device that transmits to an information terminal.
(Supplementary Note 11) When the first broadcast content currently displayed on the broadcast content display device is switched to the second broadcast content, it is detected that the second broadcast content is ready to be displayed, A content display method for acquiring related content, which is information related to the second broadcast content, and displaying the acquired related content.
(Supplementary Note 12) When the first broadcast content currently displayed on the broadcast content display device is switched to the second broadcast content, it is detected that the second broadcast content is ready to be displayed, A program that causes a computer to execute execution of acquiring related content that is information related to the second broadcast content and displaying the acquired related content.

DESCRIPTION OF SYMBOLS 10 Broadcast content display apparatus 11 Broadcast content receiving part 12 Communication part 20 Communication apparatus 30 Content storage apparatus 31 Detection part 32 Related content receiving part 33 Related content storage part 34 Message receiving part 35 Terminal communication part 40 Information terminal 50 Content storage apparatus 60 Information Terminal 61 Related content storage unit 62 Message receiving unit 63 Related content playback unit

Claims (4)

A broadcast content display device for displaying broadcast content;
A communication device that displays related content that is information related to the broadcast content;
With
The communication device has a content storage device and an information terminal,
In the broadcast content display device, the content storage device can display the second broadcast content when the currently displayed first broadcast content is switched to the second broadcast content. When the content switching completion message for notifying is received from the broadcast content display device, the related content related to the second broadcast content is transmitted to the information terminal,
The content display system, wherein the information terminal displays related content related to the second broadcast content after detecting that the second broadcast content can be displayed. A broadcast content display device for displaying broadcast content;
A communication device that displays related content that is information related to the broadcast content;
With
The communication device has a content storage device and an information terminal,
The information terminal
Obtaining related content related to the second broadcast content in advance from the content storage device,
In the broadcast content display device, when the currently displayed first broadcast content is switched to the second broadcast content, content switching for notifying that the second broadcast content is ready to be displayed Receiving a completion message from the broadcast content display device;
A content display system for displaying related content related to the second broadcast content after receiving the content switching completion message. In the broadcast content display device, a detection unit that detects that the first broadcast content is switched to the second broadcast content;
A content receiving unit that receives related content that is information related to the second broadcast content when detecting that the first broadcast content is switched to the second broadcast content;
A message receiving unit for receiving a content switching completion message for notifying that the second broadcast content can be displayed from the broadcast content display device;
A content storage device comprising: a terminal communication unit that transmits the related content related to the second broadcast content to an information terminal when receiving the content switching completion message. In the broadcast content display device, when the first broadcast content is switched to the second broadcast content, before the switching operation in the broadcast content display device is completed, the relationship is information related to the second broadcast content A storage unit for acquiring and storing content;
A message receiving unit for receiving a content switching completion message for notifying that the second broadcast content can be displayed from the broadcast content display device;
An information terminal comprising: a reproduction unit that reproduces the related content related to the second broadcast content when receiving the content switching completion message.

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