JP2010273179A - Video display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique by which a user smoothly selects an external device on a screen for external input selection. <P>SOLUTION: A video display device includes a video output part 8 for displaying video, and a plurality of external input terminals 2 for inputting a model information packet of an external device when inputting a video packet from the external device. A storing part 5 stores information for managing connection states of the external input terminals 2 by associating the model information acquired from the model information packet of the external device with the external input terminals 2. A control part 6 controls the video output part 8 to display the connection states of the external input terminals 2 stored in the storing part 5. A connection state management part 3 analyzes the model information packet input from the external device through the external input terminals 2, and by using the model information acquired from the result of the analysis, updates the information for managing the connection states of the external input terminals 2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a technology of a video display device that has a plurality of external input terminals and displays a video signal from an electronic device connected to the external input terminals.

  In recent years, the number of external devices that can use a video display device such as a television receiver as a display medium continues to increase. Along with this, the number of external input terminals provided in video display devices has increased in order to allow more external devices to be used in a single video display device, and it supports various types of external devices. In order to achieve this, a plurality of types of input terminals are provided. Furthermore, some of the external devices to be connected are provided with an input terminal for connecting another external device. That is, a single video display device can use many external devices without inserting or removing a cord, and seems to be very convenient.

  On the other hand, if the user does not select the input of the external device desired to be displayed on the video display device from a plurality of external inputs, the video in the external device is displayed even if the external device is connected to the video display device. It is not possible. In such a selection operation, generally, a screen for selecting an external input is displayed on the video display device, and a display showing a desired external device or an external input terminal to which the external device is connected from the screen. The format for selecting is used. In the case of such a format, as the number of connected external devices increases, the number of options displayed on the screen increases in the same manner, so that the speed of operation when selecting an external input decreases. is there.

  As a method for solving the above-described problem, Patent Document 1 focuses on the difference in the type of video signal supplied by an external device connected to the video display device, and provides information on the type of video signal on the selection screen. By displaying, each input terminal is characterized to facilitate identification and increase the speed of operation.

  In Patent Document 2, model information is acquired from an external device connected to a display device, and the model information is displayed on a selection screen, thereby clarifying what external device is connected and easily identifying it. The speed of operation is raised.

JP 2008-67284 A JP 2008-35189 A

  In the video display device described in Patent Document 1 described above, identification by the type of video signal is required to select and display an input video from a desired external device from a screen for selecting external input. Therefore, when the video display device includes a plurality of input terminals of the same video signal type, it is difficult to quickly identify the same type of external device connected to the input terminal on the selection screen, and the desired external device. There is also a problem that it is necessary to understand in advance what kind of signal the video signal from is.

  In the display device described in Patent Document 2 described above, in order to quickly identify the connected external device, it is necessary to know which external device has what name. Therefore, when the number of external devices to be connected increases, the correspondence between external devices and device names that must be understood increases, which places an extra burden on the user and reduces the speed of selection operations. There is also. In addition, when a plurality of identical external devices are connected, it is difficult to identify which display corresponds to which external device although it is distinguished by numbering.

  The present invention has been made based on the above problems, and an object thereof is to provide a video display device that allows a user to smoothly select an external device on a screen for selecting an external input.

  In order to solve the above problems, a first technical means of the present invention is to connect a video output unit for displaying video and an external device, and when a video packet is input from the external device, a model information packet of the external device A storage unit for storing a plurality of external input terminals, model information obtained from a model information packet of the external device, and information for managing the connection state of the external input terminals in association with the external input terminals; A control unit that performs control to display the connection state of the external input terminal stored in the storage unit on the video output unit, and input from an external device via the external input terminal A connection state management unit that analyzes the model information packet received and updates information for managing the connection state of the external input terminal using the model information obtained from the analysis result It is obtained by the features.

  The second technical means relates to the video display device of the first technical means, and directly between the model information of the external device connected to the video display device and the external database storing the model image of the external device. A communication unit capable of bidirectional exchange of data via a cable or a network, the communication unit transmits model information obtained by analysis of the model information packet to the external database, A model image corresponding to the transmitted model information is received from the external database, the received model image and the model information transmitted to the external database are stored in the storage unit in association with each other, and the external input terminal The model image received from the external database is registered as information for managing the connection state.

  The third technical means relates to the video display device of the first or second technical means, and the control unit outputs from the external input terminal when an external device is newly connected to the external input terminal. A display screen for recognizing a connection detection signal and registering an installation location of the newly connected external device is displayed on the video output unit, and installation location information of the newly connected external device is stored in the memory. As information for managing the connection state of the external input terminal stored in the unit, the external device is recorded in association with the newly connected external input terminal.

  A fourth technical means relates to the video display device according to any one of the first to third technical means, wherein the connection state management unit indicates a date and time when an external device is connected to the external input terminal. The control unit stores the connection date / time and display processing stored in the storage unit when displaying the connection state of the external input terminal on the video output unit. The display of the connection state of the external input terminal is changed based on the time elapsed since the external device was connected by comparing the date and time to be performed.

  A fifth technical means relates to the video display device of any one of the first to fourth technical means, and includes an operation input unit that receives an operation input by a user, and the control unit is configured to input an operation input to the operation input unit. The external input selection screen that enables selection of the external input terminal is displayed on the video output means, and the external input selection screen indicates the connection state of the external input terminal stored in the storage unit. It is characterized by being.

  A sixth technical means relates to the video display device of the fifth technical means, wherein the control unit selects the external input terminal when the external input selection screen is selected by the operation of the operation input unit. A signal supplied from an external device connected to the external input terminal is displayed on the video output unit.

  According to the present invention, the user can directly recognize the appearance of the external device, the position of the external input terminal as the connection destination of the external device, and the installation location of the external device from the screen for selecting the external input. As a result, the user can select a desired external device more quickly, and when connecting or disconnecting the external device, the user can check the connection destination and installation location in advance on the video display device. It becomes.

It is a block diagram which shows the structure of the video display apparatus which concerns on embodiment of this invention. It is a table | surface which shows an example of the connection state management table which a memory | storage part hold | maintains. It is a table | surface which shows an example of the holding | maintenance model image table which a memory | storage part hold | maintains. It is a flowchart which shows the connection state update process which the connection state management part which comprises a video display apparatus performs. It is a flowchart which shows the model image acquisition process which the communication part which comprises a video display apparatus performs. It is a flowchart which shows the installation location registration process which the control part which comprises a video display apparatus performs. It is a figure which shows an example of a display of an external input selection screen. It is a figure which shows an example of a part display of the external input selection screen shown in FIG. It is a figure which shows an example of the display which gave the change to the external input selection screen shown in FIG. 7 based on connection elapsed time.

  The video display device according to the present invention is a device having one or a plurality of external input terminals for inputting video signals. Hereinafter, only examples applied to a television device are shown, but other types of display devices such as a display monitor for a PC are shown. Even applicable. The external input terminal provided in the video display device according to the present invention is a terminal to which a video packet (or video packet and audio packet) can be input from an external device, and the model information packet of the external device when the video packet is input. Can also be input.

  Furthermore, the model information packet used in the following description is based on the premise that model information includes manufacturer name, model name, and model category information. In the embodiment of the present invention, it is preferable to include at least such information as model information, but the present invention is not limited to this.

Embodiment 1
FIG. 1 is a block diagram showing a configuration of a video display apparatus 1 according to an embodiment of the present invention. The video display device 1 according to the present embodiment includes an external input terminal 2, a connection state management unit 3, a communication unit 4, a storage unit 5, a control unit 6, a display processing unit 7, and a video output unit 8. And have.
The external input terminal 2 outputs a video packet supplied from the connected external devices 11, 12, and 13 to the display processing unit 7, and sends a connection detection signal notifying that the external device has been detected to the connection state management unit 3. Output to. At this time, when the model information packet is supplied from the external devices 11, 12, and 13, the external input terminal 2 outputs the supplied model information packet to the connection state management unit 3.

  For each terminal of the external input terminal 2, the terminal to which the external device 11 is connected is “input 1”, the terminal to which the external device 12 is connected is “input 2”, and the terminal to which the external device 13 is connected is “input 3”. The individual input terminal names are given as follows. In this embodiment, the input terminal name is expressed in a format in which “input” is given a number, but is not limited thereto.

  The connection state management unit 3 is supplied with a connection detection signal, or a connection detection signal and a model information packet from the external input terminal 2, and models information of external devices connected to the connection state management table held in the storage unit 5 ( If the model information packet is not supplied, the default model information) is collated, and the connection state management table is updated according to the collation result. As shown in FIG. 2, the connection state management table stores the input terminal name, connection model information, connection model image, connection date and time, and installation location information in association with each terminal of the external input terminal 2. Further, in the present embodiment, the description is made on the assumption that the above-described five pieces of information are stored in the connection state management table, but the present invention is not limited to this.

  The communication unit 4 transmits the model information data supplied from the connection state management unit 3 to the external database 10 directly connected via a cable or connected via a network, and the model transmitted from the external database 10 The model image data corresponding to the information data is received. The received model image data is stored in the storage unit 5. At this time, the model information supplied from the connection state management unit 3 and the model image name stored in the storage unit 5 are stored in association with the stored model image table stored in the storage unit 5. As shown in FIG. 3, the held model image table stores the model image name stored in the storage unit 5 and the model information of the external device represented by the model image in association with each other.

  The control unit 6 receives the control signal supplied from the remote controller 9 and outputs a display control signal corresponding to the received control signal to the display processing unit 7. The remote controller 9 is provided with various buttons such as a power button, an input switching button, a channel button, a volume increase button, and a volume decrease button as in the case of a remote control used for a general television receiver. The input switching button is a button for instructing display of a screen (hereinafter referred to as “external input selection screen”) for selecting an external input on the display constituting the video output unit 8 when pressed. A specific display configuration of the external input selection screen will be described later.

In addition to the various buttons described above, the remote controller 9 is provided with an up cursor button, a down cursor button, a left cursor button, a right cursor button, and an enter (“ENTER”) button. Hereinafter, the up cursor button, the down cursor button, the left cursor button, and the right cursor button are collectively referred to as a cursor button.
When the cursor button is pressed while an external input selection screen or the like is displayed on the display of the video display device 1, the focus is moved by moving the cursor one by one in the upper, lower, left, or right directions. Button for instructing selection of an item.

  Here, focus will be described. When a plurality of buttons, text boxes, and the like are displayed on the display screen of the display, only one of them can accept input from the remote controller 9 or a main body operation unit (not shown). A state that accepts input is called having focus. Whether a button has the focus is indicated by the blinking cursor inside the text box, the menu is highlighted in the case of a drop-down list box, and surrounded by a broken line in the case of a command button. The user can make a judgment based on the above.

  The enter (“ENTER”) button is pressed when a box indicating an external input terminal constituting the external input selection screen displayed on the display is in focus, so that the external input terminal corresponding to the box is displayed. This is a button for instructing the selection.

The display processing unit 7 generates an output display signal for displaying various screens such as an installation location registration screen and an external input selection screen, a label, and the like based on the display control signal supplied from the control unit 6. A connection state display control process for outputting to the output unit 8 is performed. Further, based on the video switching signal supplied from the control unit 6, video switching control processing for outputting any externally input video signal supplied from the external input terminal 2 to the video output unit 8 is performed.
The video output unit 8 includes a display such as a CRT display, a liquid crystal display, or a plasma display, and displays an image on the display based on the video signal supplied from the display processing unit 7.

  The storage unit 5 includes a RAM, a ROM, or a semiconductor memory such as a flash memory. The storage unit 5 includes a program storage unit, a working storage unit, and a data storage unit. The program storage unit stores in advance a connection state update program to be executed by the connection state management unit 3 and other various programs. The working storage unit is used for work when executing the program stored in the program storage unit. The data storage unit stores various data such as the above-described model image data, connection state management table, and held model image table.

Next, processes performed by the connection state management unit 3, the communication unit 4, and the control unit 6 constituting the video processing apparatus having the above configuration will be described. First, connection state update processing of the connection state management unit 3 will be described with reference to the flowchart shown in FIG.
If the connection detection signal is supplied from any one of the external input terminals 2 in a state where the video display device 1 having the above configuration is turned on, the connection state management unit 3 performs step S1 shown in FIG. The model information is detected from the input terminal to which the connection detection signal is supplied (hereinafter, this input terminal is referred to as input X), that is, the model information packet is supplied from the external device to which the input X is connected. It is determined whether or not.

  If the determination result in step S1 is “YES”, that is, if a model information packet is supplied from an external device to which the input X is connected, the connection state management unit 3 proceeds to step S2. In step S2, the connection state management unit 3 performs packet analysis processing on the model information packet detected in step S1, extracts model information from the model information packet, and proceeds to step S4.

  On the other hand, if the determination result in step S1 is “NO”, the connection state management unit 3 proceeds to step S3. In step S3, the connection state management unit 3 extracts, as model information, default information set in advance so as to be model information when the model information packet is not supplied, and proceeds to step S4.

  In step S4, the connection state management unit 3 determines whether the model information extracted in step S2 or step S3 matches the connection model information of the input X stored in the connection state management table held in the storage unit 5. Judging. If the determination result in step S4 is “NO”, that is, if a new external device is connected to the input X, the connection state management unit 3 proceeds to step S5. On the other hand, if the determination result in step S4 is “YES”, that is, if there is no change in the connection state and there is no need to update the connection state management table, the connection state management unit 3 ends the series of processing.

  In step S5, the connection state management unit 3 first deletes all the information related to the connection state of the input X stored in the connection state management table held in the storage unit 5, and then the connection type information of the input X as step S2 or step The model information extracted in the process of S3 and the date and time of processing are stored as the connection date and time. Next, a signal for executing a process of registering a place where the connected external device is installed is output to the control unit 6, and the process proceeds to step S6.

  In step S6, the connection state management unit 3 searches the held model image table held in the storage unit 5, and whether there is model information that matches the model information stored in the connection state management table in the process of step S5. Determine whether. If the determination result in step S6 is “YES”, that is, if a model image representing an external device connected to the input X is stored in the storage unit 5, the connection state management unit 3 proceeds to step S7. move on. On the other hand, if the determination result in step S6 is “NO”, that is, if the model image representing the external device connected to the input X is not stored in the storage unit 5, the connection state management unit 3 Proceed to S8.

In step S7, the connection state management unit 3 acquires the model image name associated with the model information stored in the connection state management table in the process of step S5 from the retained model image table held in the storage unit 5, and the step Proceed to S9.
In step S8, the connection state management unit 3 outputs the model information stored in the connection state management table in the process of step S5 and the input terminal name associated with the storage information to the communication unit 4, and the storage unit 5 The default image name associated with the model category of the model information stored in the connection state management table is acquired as the model image name from the stored model image table to be stored, and the process proceeds to step S9.

  In step S9, the connection state management unit 3 stores the model image name acquired in step S7 or step S8 as the connection model image of the input X in the connection state management table held in the storage unit 5, and ends the series of processes. . This completes the description of the connection status management table update process.

  Second, the model image acquisition process of the communication unit 4 will be described with reference to the flowchart shown in FIG. As a premise, a model information packet is output from an external device connected to the video display device 1, and model information extracted from the model information packet is not stored in the retained model image table held in the storage unit 5, that is, connected In the state update process, the process proceeds to step S8 shown in FIG.

  When the video display device 1 having the above-described configuration is turned on and an external device is connected, when the model information and the input terminal name are output from the connection state management unit 3 to the communication unit 4, the communication unit 4 The process proceeds to step S11 shown in FIG. 5, and it is determined whether or not it is possible to connect to the external database 10 designated in advance. If the determination result in step S11 is “NO”, the communication unit 4 ends the series of processes. On the other hand, if the determination result in step S11 is “YES”, that is, if the video display device 1 is connected directly to the external database 10 via a cable or via a network, the communication unit 4 Proceed to S12.

  The external database 10 stores model images of external devices that can be connected to the video display device 1 in association with model information that can be acquired from the external devices. Also, by receiving the model information from the video display device 1, the database is searched using the received model information as a query, and if there is a model image corresponding to the received model information, the model information is transmitted. The model image data is transmitted to the display device 1. On the other hand, if a model image corresponding to the received model information does not exist, data indicating a model image acquisition failure is transmitted to the video display device 1 that transmitted the model information.

  In step S12, the communication unit 4 transmits the model information data supplied from the connection state management unit 3 to the external database, and proceeds to step S13. In step S13, the communication unit 4 determines whether or not model image data has been received from the external database 10 that has transmitted the model information. If the determination result in step S13 is “NO”, that is, if data indicating a model image acquisition failure is received from the external database 10, the communication unit 4 ends the series of processes. On the other hand, when the determination result of step S13 is “YES”, the communication unit 4 proceeds to step S14.

  In step S14, the communication unit 4 stores the model image data received from the external database 10 in step S13 in the storage unit 5, and transmits the model image data stored in the storage unit 5 to the external database 10 in step S12. The model information and the model image name stored in the storage unit 5 are stored in association with each other. In addition, the model image name received from the external database 10 is stored in the connection status management table held by the storage unit 5 as the connection model image of the input terminal name supplied from the connection status management unit 3, and the series of processing ends. To do. This completes the description of the model image acquisition process.

  Third, the installation location registration process of the control unit 6 will be described with reference to the flowchart shown in FIG. As a premise, the model information of the external device connected to an input terminal of the video display device 1 does not match the connection model information of the input X stored in the connection state management table held in the storage unit 5, that is, the connection In the state update process, the process proceeds to step S5 shown in FIG. That is, it is assumed that an external device is newly connected to an input terminal of the video display device 1 and a connection state update process is performed on the input terminal.

  When the video display device 1 having the above configuration is turned on and a new external device is connected, when the installation location registration signal is output from the connection state management unit 3 to the control unit 6, the control unit 6 Proceeding to the process of step S21 shown in FIG. 6, based on the installation location registration signal output from the connection state management unit 3, an installation location registration screen display signal is output to the display processing unit 7, and the process proceeds to step S22.

  In step S <b> 22, the control unit 6 determines whether an installation location registration completion signal has been received from the remote controller 9 through an operation by the user's hand. If the determination result in step S22 is “NO”, that is, if a signal indicating that the installation location registration is not completed is received, the control unit 6 proceeds to step SP24. On the other hand, if the determination result of step S22 is “YES”, the controller 6 proceeds to step S23.

  Here, the above-mentioned operation by the user's hand is to input installation location information or information to be registered later using the remote controller 9 on the installation location registration screen displayed through the process of step S21. When the installation location information is input, a signal indicating completion of installation location registration is output from the remote controller 9 to the control unit 6 when a signal indicating that registration is performed later is input.

In step S23, the control unit 6 stores the installation location information input on the installation location registration screen by the user using the remote controller 9 as the installation location of the input terminal based on the installation location registration signal in the storage unit 5. The connection state management table is stored, and the process proceeds to step S24.
In step S24, the control unit 6 outputs a signal for ending the display of the installation location registration screen to the display processing unit 7, and ends a series of operations. This completes the description of the installation location registration process.

  FIG. 7 is a diagram illustrating an example of the display of the external input selection screen. The external input selection screen 20 is displayed in a vacant space on the display screen when the input switching button of the remote controller 9 is pressed and the displayed video is contracted and displayed again. The external input selection screen 20 has as many images or figures 21 at the input terminal positions indicating where the input terminals of the external input terminal 2 are installed in the video display device 1 and the number of input terminals the video display device 1 has. An icon group 22 indicating external inputs arranged in the vertical direction, and an external input selection focus 23 indicating which icon is selected by moving up and down on the icon group 22.

  FIG. 8 is a diagram illustrating an example of icons displayed on the external input selection screen. The icon is generated for each input terminal, an image 24 representing the connected external device, a box 25 for displaying various information of the connected external device stored in the connection state management table, and the input terminal position described above And an image or graphic 26 representing an input terminal corresponding to the image or graphic 21 indicating the above.

  As described above, in the video display device 1 in which the external input selection screen shown in FIG. 7 described above is displayed on the display of the video output unit 8, the user presses the upper cursor button or the lower cursor button of the remote control 9, so that the focus 23 is changed. Move to the next higher or lower icon. Here, the video supplied from the external input to the display processing unit 7 from the control unit 6 by moving the focus 23 on the icon displaying the external input for which the video is to be displayed and pressing the determination button of the remote controller 9. A signal for selecting a signal is output. The display processing unit 7 supplied with the signal selects the video signal and outputs it to the video output unit 8, and the selected external video is displayed on the display of the video output unit 8. At this time, the external input selection screen 20 is not displayed, and the external video output from the display processing unit is displayed on the entire display.

  As described above, according to the first embodiment of the present invention, on the external input selection screen 20, not only the model information of the external device connected to each input terminal, but also the image representing the external device, its installation location, and the connection are connected. It is displayed so that the position on the video display device can be recognized. For this reason, the user can recognize the appearance of the external device and the positional relationship between the video display device and the external device directly from the external input selection screen without storing the type of the video signal or the name of the external device. Therefore, it is possible to select an external device on which an image is to be displayed directly from the external input selection screen. As a result, the user can quickly select a desired external device with a simple operation and with a small amount of knowledge, which is convenient.

<< Embodiment 2 >>
In the second embodiment according to the present invention, in the above-described first embodiment, the display processing unit 7 receives the signal indicating that the external input selection screen is displayed from the control unit 6 and the connection of each input terminal connection. The date and time of connection in the state management table are compared, the elapsed time since connection is calculated, and the icon shown in FIG. 8 changes according to the elapsed time.

  FIG. 9 is a diagram illustrating an example of the display of the external input selection screen in which the display is changed according to the connection elapsed time. A graphic 20 indicating a new connection is displayed on the external input icon 22a having a short connection elapsed time, and a graphic 21 for proceeding with replacement of an external device is displayed on the external input icon 22b having a long connection elapsed time. In this case, a graphic used for display such as the graphic 20 or the graphic 21 is stored in advance in the storage unit 5 in association with the connection elapsed time.

  By constructing in this way, it is possible to determine which one should be selected at a glance by displaying the external input selection screen 20 when it is desired to display the video on the video display device 1 immediately after connecting the external device. Therefore, the user's selection operation can be speeded up. In addition, since the degree of aging of the connected external device can be checked every time an external input is selected, the user can easily determine when to make a new external device.

  As mentioned above, although embodiment of this invention was described, it should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is defined by the terms of the claims, and includes meanings equivalent to the terms of the claims and all modifications within the scope.

DESCRIPTION OF SYMBOLS 1 ... Video display apparatus, 2 ... External input terminal, 3 ... Connection state management part, 4 ... Communication part, 5 ... Memory | storage part, 6 ... Control part, 7 ... Display processing part, 8 ... Video output part, 9 ... Remote control, DESCRIPTION OF SYMBOLS 10 ... External database, 11 ... External device, 12 ... External device, 13 ... External device, 20 ... External input selection screen, 21 ... Graphic, 22 ... Icon group, 22a ... Icon, 22b ... Icon, 23 ... Focus, 24 ... Image, 25 ... box, 26 ... figure, 27 ... figure, 28 ... figure.

Claims (6)

A video output unit for displaying video;
A plurality of external input terminals for connecting an external device and inputting a model information packet of the external device when a video packet is input from the external device;
A storage unit that stores model information obtained from the model information packet of the external device and information that manages the connection state of the external input terminal in association with the external input terminal;
A control unit that performs control to display the connection state of the external input terminal stored in the storage unit on the video output unit,
Connection state management for analyzing the model information packet input from an external device via the external input terminal and updating information for managing the connection state of the external input terminal using the model information obtained from the analysis result A video display device comprising a portion. Bidirectional data can be exchanged directly between the model information of the external device connected to the video display device and the external database storing the model image of the external device via a cable or a network. Have a communication department,
The communication unit transmits model information obtained by analyzing the model information packet to the external database, receives a model image corresponding to the transmitted model information from the external database, the received model image, and the The model image received from the external database is registered as information for managing the connection state of the external input terminal in association with model information transmitted to an external database and storing it in the storage unit. 2. The video display device according to 1.   The control unit recognizes a connection detection signal output from the external input terminal when an external device is newly connected to the external input terminal, and registers an installation location of the newly connected external device. The display screen is displayed on the video output unit, and the installation location information of the newly connected external device is used as information for managing the connection state of the external input terminal stored in the storage unit. The video display device according to claim 1, wherein recording is performed in association with a connected external input terminal. The connection state management unit stores the date and time when an external device is connected to the external input terminal as information for managing the connection state of the external input terminal in the storage unit,
When the control unit displays the connection state of the external input terminal on the video output unit, the control unit compares the connection date and time stored in the storage unit with the date and time of display processing, and after the external device is connected 4. The video display device according to claim 1, wherein the display of the connection state of the external input terminal is changed based on the elapsed time. An operation input unit that receives an operation input by a user;
The control unit causes the video output means to display an external input selection screen that enables selection of an external input terminal in accordance with an operation input to the operation input unit, and the external input selection screen is stored in the storage unit. The video display device according to claim 1, wherein the video input device indicates a connection state of the external input terminals.   When an external input terminal is selected using the external input selection screen by an operation of the operation input unit, the control unit displays a signal supplied from an external device connected to the selected external input terminal. The video display device according to claim 5, wherein the video display device is displayed on an output unit.

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