JP2005269113A - Display and displaying method, and operating method of electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the selection of a desired channel by a user from among a large number of channels being transmitted from connected electronic apparatus, and to operate the connected electronic apparatus collectively. <P>SOLUTION: In an apparatus having a multi-screen function capable of displaying a different video image in each of main area (also, referred to main screen) and at least one subarea (also, referred to subscreen) obtained by dividing one display area, operation related to connected external apparatus can be carried out by GUI (graphical user interface) employing that multi-screen function. The display receives a plurality of video signals and sound signals from external apparatus, e.g. a BS broadcast tuner and a CS broadcast tuner, and displays these plurality of video signals while distributing to the display area divided into the main area and at least one subarea, and transmits a signal for operating a source electronic apparatus which transmits a video signal being displayed in an area specified by a user at the operating section. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a display device, a display method, and an electronic device operation method, and more particularly to a television receiver that receives and displays a terrestrial broadcast wave, a satellite broadcast wave, a video signal transmitted via a communication satellite, and the like. The present invention relates to a display device, a display method, and an electronic device operation method for operating an electronic device that is a transmission source of a displayed video signal.

  Conventionally, as a function of screen display in a television receiver (hereinafter referred to as TV), video of another station is displayed as a sub-screen at one corner of the screen, and still images of multiple stations are displayed on one screen. Some of them are displayed at the same time (for example, see Patent Document 1 or Patent Document 2). In addition to displaying other station video as a sub-screen, it is possible to select a channel while confirming the contents of a plurality of programs (back programs) broadcast on the other station in real time for the currently displayed video. Also disclosed is a technique (see, for example, Patent Document 3).

  In recent years, the types of broadcast providing media have been diversified, such as terrestrial broadcasting, terrestrial digital broadcasting, satellite broadcasting by broadcasting satellite (BS broadcasting), communication satellite broadcasting (CS broadcasting), satellite digital broadcasting, and cable broadcasting. Accordingly, receiving devices such as a set top box (STB) incorporating a tuner device for receiving a dedicated broadcast wave are manufactured and sold. The user can view various broadcasts by connecting these receiving devices to the TV. For example, in cable broadcasting or satellite broadcasting, etc., the number of stations (number of channels) that provide programs has increased, as seen in a method that provides a channel selected by a user from a large number of channels on a pay-per-use basis. Broadcast formats are also diversifying.

  Therefore, even if the user can select a channel while confirming a back program in real time by the technique disclosed in Patent Document 3, for example, when there are several tens of channels, the video of each channel is divided and displayed. Then, the area allocated to each channel becomes extremely small to such an extent that the user cannot perform channel selection while looking at the divided screen. Also, if the user tries to use a plurality of broadcast providing media, the number of receiving devices such as STBs increases. Since these receiving devices are operated by an individually provided operation unit or a dedicated remote controller, setting of each receiving device, channel change, and the like cannot be collectively performed. In order for a user to change a channel between a plurality of broadcast providing media, a plurality of remote controllers must be used, which causes a problem that operation input to the broadcast providing media becomes complicated.

Japanese Patent Laid-Open No. 62-130080 JP-A-62-021379 JP 11-146300 A

  The present invention makes it easy for a user to select a desired channel from a large number of channels transmitted from a connected electronic device, and allows a collective operation of the connected electronic devices, and a connected device. A display method for dividing an image transmitted from an electronic device into a region and displaying the same, and a user can easily select a desired channel from a large number of channels transmitted from the connected electronic device and the connected electronic device It is an object of the present invention to provide an electronic device operation method for collectively operating devices.

  In order to achieve the above-described object, a display device according to the present invention includes a signal input unit that inputs a plurality of video signals and audio signals from the outside, a display unit that displays the input video signal, and a display area of the display unit. Is divided into a main area and at least one sub area and a plurality of video signals are assigned to each area, an operation means for selecting an operation in the display area for selecting a main area or a sub area, a video signal, Device operation signal storage means for storing an operation signal for operating an electronic device that is a transmission source of an audio signal, and an operation signal for operating the electronic device that is a transmission source of a video signal displayed in an area selected by the operation means And an operation signal transmitting means for transmitting to the electronic apparatus, an operation signal for operating the electronic apparatus that is a transmission source of the video signal displayed in the area selected by the operation means is transmitted to the electronic apparatus.

  Here, the display processing means displays the area selected by the operating means as a moving image and displays areas other than the selected area as a still image.

  As signal input means, main channel selection means for selecting a broadcast wave channel including a video signal displayed in the main area, and sub-selection for selecting a broadcast wave channel including a video signal displayed in the sub area. Prepare local means. The plurality of video signals and audio signals may be broadcast signals carried by broadcast waves having different formats, or may be reproduced from a recording medium. The signal transmission means outputs the operation signal as an infrared signal to the electronic device. As the infrared signal, a signal based on SIRCS (Serial Infrared Remote Control System) can be used.

  The display method according to the present invention includes a signal input step for inputting a plurality of video signals and audio signals, and when the input video signal is displayed on the display means, the display area of the display means is at least one of the main area and the main area. A display processing step of dividing the display area into sub-areas and assigning and displaying each video signal to each area. The display area of the display means is divided to display a plurality of videos.

  Here, in the display processing step, the region selected in the operation step is displayed as a moving image, and the region other than the selected region is displayed as a still image. The plurality of video signals and audio signals may be broadcast signals carried by broadcast waves having different formats, or may be reproduced from a recording medium.

  Furthermore, the electronic device operating method according to the present invention includes a signal input step for inputting a plurality of video signals and audio signals, and a display area of the display means when the input video signal is displayed on the display means. A display processing step that is divided into at least one sub-region and assigned to each region for each video signal, an operation step in which an operation for selecting a main region or a sub-region in the display region is performed, and a region selected in the operation step An operation signal transmission step of selecting an operation signal for operating the electronic device that is a transmission source of the video signal displayed on the device from the device operation signal storage means and transmitting the operation signal to the electronic device, and the display area selected in the operation step An operation signal for operating the electronic device that is the transmission source of the video signal displayed in the main area or the sub area is transmitted to the electronic apparatus.

  The plurality of video signals and audio signals may be broadcast signals carried by broadcast waves having different formats, or may be reproduced from a recording medium. In the signal transmission step, the operation signal is output to the electronic device as an infrared signal. As the infrared signal, a signal based on SIRCS can be used.

  According to the display device and the display method of the present invention, the user can easily select a desired channel from a number of channels transmitted from the connected electronic device. Moreover, according to the electronic device operating method according to the present invention, the connected electronic devices can be collectively operated by transmitting an operation signal for operating the electronic device that is the transmission source of the video signal and the audio signal to the electronic device. Can do.

  In the display device according to the present invention, one display area is divided into a main area (also referred to as a main screen) and at least one sub area (also referred to as a sub screen), and a different video is displayed for each of the divided areas. In a device having a multi-screen function that can be displayed, an operation related to a connected external device can be easily performed by a user using a GUI (graphical user interface) using the multi-screen function. The display device receives a plurality of video signals and audio signals from an external device such as a BS broadcast tuner device or a CS broadcast tuner device, and the display region is divided into a main region and at least one sub region. A video signal can be allocated and displayed, and an operation signal for operating the electronic device that is a transmission source of the video signal displayed in the area designated by the user in the operation unit can be transmitted to the electronic device. In a specific example of the present invention, an example will be described in which this display device is applied to a television receiver (hereinafter referred to as a TV) including at least two tuners inside itself.

  Hereinafter, a television receiver (TV) 1 to which a display device shown as an example of the present invention is applied will be described in detail with reference to the drawings.

  As shown in FIG. 1, the TV 1 is received by an antenna 11, an analog tuner 12 and an analog tuner 13 that receive broadcast waves of terrestrial analog broadcasting as input systems for video signals and audio signals, and other devices. Input terminals 14a, 14b, 14c and 14d for inputting video signals and audio signals are provided. Further, as a configuration for performing processing for displaying the received video signal and audio signal, a selector 15, a selector 16, a selector 17 for selecting the video signal and audio signal input from another device or received by the built-in tuner, and the audio An audio selector 18 that selects a signal, a display processing unit 19 that performs multi-screen display processing by dividing a display area, an operation signal memory 20 that stores operation signals for operating other devices, and various display processes EPROM 21 as a work area is provided. Further, the TV 1 includes a speaker 22, a display device 23, and an output terminal 24 that outputs a video signal and an audio signal to an external device as an output system. Furthermore, the TV 1 includes a remote control signal light receiving unit 25 that receives its own operation signal as a communication system with the outside, and a remote control signal output unit 26 that outputs operation signals of other devices. Each of the above components is managed by the control unit 27 as a whole.

  In the configuration described above, the analog tuner 12 and the analog tuner 13 are tuners for receiving terrestrial analog broadcasts, and when one of the channels is received, the other can select another channel. it can. In this specific example, the analog tuner 13 is used as a sub-screen display tuner when the analog tuner 12 is receiving a channel displayed on the main screen.

  As signal sources of signals input to the input terminals 14a, 14b, 14c, and 14d, BS digital broadcast receiving device 31, terrestrial digital broadcast receiving device 32, and CS digital broadcast receiving device 33 are devices that can receive other broadcast waves. Can be given. In addition to the broadcast wave, it may be a signal reproduced from a recording medium such as a DVD (Digital Versatile Disc), a CD (Compact Disc), or a video tape. Here, a DVD playback device 34 is connected.

  The selector 15, selector 16, and selector 17 are controlled by the control unit 27 to select a signal to be displayed on the main screen, a signal to be displayed on the sub screen, and a signal for external output from a plurality of video signals and audio signals. Yes. Here, the selector 15 selects the main screen display signal, the selector 16 selects the sub screen display signal, and the selector 17 selects the output-only signal to be output to the external recording apparatus. The audio selector 18 selects an audio signal corresponding to the video signal displayed on the selected screen from the main screen or the sub screen and sends it to the speaker 22.

  The display processing unit 19 has a working memory built therein, and performs a process of writing the input video signal into the memory and a process of reading it out and sending it to the display device 23 as appropriate. Thereby, multi-screen display can be realized from a plurality of input video signals. The display processing unit 19 also has a function of displaying an operation input state on the screen or a device state as a so-called OSD (On Screen Display) and a GUI (Graphical User Interface). Further, the display processing unit 19 determines the screen size and screen display position of the main screen, the screen size and screen display position of the sub screen, and the like. As the display device 23, a CRT display, a liquid crystal display, a plasma display, or the like can be used. The screen size, screen display position, and the like determined by the display processing unit 19 are stored in the EPROM 21 as a work area for display processing.

  The operation signal memory 20 is used for operating the BS digital broadcast receiver 31, the terrestrial digital broadcast receiver 32, the CS digital broadcast receiver 33, the DVD playback device 34, and the output destination device that are the signal sources of the input signals. The operation signal is stored. As the operation signal, a wireless communication method using a dedicated band, a short-range wireless communication method such as Bluetooth (registered trademark), an infrared communication method signal format standardized by IrDA (Infrared Data Association) However, since these devices are generally remotely operable by a remote controller (hereinafter referred to as a remote controller), a remote control signal is used as an operation signal. In this specific example, a remote control signal based on a so-called SIRCS (Serial Infrared Remote Control System) format, which is an infrared communication system dedicated to remote control, is used. Therefore, the remote control signal light receiving unit 25 is a light receiving device that receives a remote control signal for remotely operating the TV 1, and the remote control signal output unit 26 is controlled by the control unit 27, so that the BS digital broadcast receiving device 31, the terrestrial wave The light emitting device transmits a remote control signal to the digital broadcast receiving device 32, the CS digital broadcast receiving device 33, the DVD playback device 34, and the output destination device.

  In the operation signal memory 20, a plurality of patterns of operation signals are prepared according to the manufacturer and model of the device. Although not shown, the TV 1 has a setting mode in which the operation signal of the connected device is made valid from the SIRCS code stored in the operation signal memory 20 when the user purchases the TV 1.

  Next, the flow of video signals and audio signals in the TV 1 having the above-described configuration will be described. The terrestrial analog video signal selected by the analog tuner 12 and the analog tuner 13 and the signal from the external receiving device input by the input terminal 13 are input to the selector 15, the selector 16 and the selector 17 in parallel. The From the selector 15 and the selector 16, the video signals designated by the control unit 27 are output as a main screen display video signal and a sub screen display video signal, respectively, and input to the display processing unit 19. The display processing unit 19 is controlled by the control unit 27 to perform processing for determining the screen size and screen display position of the main screen, the screen size and screen display position of the sub screen, and the multi-screen video created thereby is displayed. It is output to the display device 23.

  An example of a multi-screen displayed on the display device 23 is shown in FIG. The display area 100 of the display device 23 is divided and a main screen 101 and sub screens 102 to 106 are displayed. In FIG. 2, the terrestrial analog video signal is displayed on the main screen 101, the terrestrial analog broadcast is displayed on the sub screen 102, the BS digital broadcast is displayed on the sub screen 103, and the terrestrial digital broadcast is displayed on the sub screen 104. Then, the CS digital broadcast is displayed on the sub screen 105. In addition, the playback signal of the DVD playback device 34 is displayed on the sub screen 106.

  Further, in the TV 1, the user can operate or connect to the TV 1 by a selection operation on the screen by using a GUI that changes the color of the display frame of the selected screen or displays a cursor or the like indicating the selected screen. You can perform operations on other devices. In FIG. 2, a cursor indicating that the cursor is selected is aligned with the main screen. In the display area of the display device, an OSD 107 indicating the setting state of the main screen and an OSD 108 indicating the setting state of the sub screen selected as the recording output are displayed.

  The audio signal is selected by the selector 15, the selector 16, and the selector 17 in the same manner as the video signal. The audio signal selected by the selector 15 and the selector 16 is sent to the audio selector 18, and the audio selector 18 is controlled by the control unit 27 and specified audio among the images displayed on the main screen or the sub screen. A signal is output from the speaker 22.

  In this specific example, most operation instructions to the TV 1 and the devices such as the BS digital broadcast receiver 31, the terrestrial digital broadcast receiver 32, the CS digital broadcast receiver 33, and the DVD playback device 34 connected to the TV 1 are TV 1. Can be done from a remote controller. Here, a remote controller (hereinafter referred to as a remote controller) 40 for operating the TV 1 will be described with reference to FIG.

  As shown in FIG. 3, the remote controller 40 mainly includes selection keys 41a, 41b, 41c, 41d for selecting at least up / down / left / right, a determination key 42 for determining the selection result, and a cancel key 43 for correcting the selection result. have. In addition, a key group 45 such as a power key 44 for turning on / off the power, a numeric key for directly designating a channel, or an alphabet key used for character input or the like is provided. The keys include a key for selecting a device that provides a video signal to be displayed on the main screen or the sub screen. The remote controller 40 includes an infrared light emitting unit at a position (not shown), and a signal based on the SIRCS format is transmitted to the TV 1.

  Next, a process of displaying video signals and audio signals input from other devices connected by the TV 1 to which the display device shown as a specific example of the present invention is applied in the divided area of the display device 23 will be described with reference to FIGS. Will be described. The processing shown in FIGS. 4 and 5 is performed by sequentially updating the still images on the sub screen when the main screen is selected by the user, that is, when the cursor for designating the screen is placed on the main screen by a remote controller or the like. It is a process to display. This displays the selected channel (or the channel transmitted from the selected external device) on the main screen and displays it on the other channel (or other channel transmitted from the selected external device) sub-screen. It is a normal display process.

  In step S1, the control unit 27 selects the signal of the channel selected by the analog tuner 13 for sub display by the selector 16. In step S <b> 2, the control unit 27 sets the screen display position and screen size of the sub screen 102 in the display area 100 by the display processing unit 19, and obtains the write start position to the memory built in the display processing unit 19. In step S3, the image reading position and screen size of the sub screen 102 are set, and the reading start position from the memory built in the display processing unit 19 is set. In step S4, writing to the display processing unit 19 is started by an instruction from the control unit 27, and reading from the display processing unit 19 is started in step S5. In step S6, the control unit 27 instructs the display processing unit 19 to stop writing and reading. A terrestrial analog broadcast still image is displayed on the sub-screen 102 through steps S1 to S6.

  Subsequently, the same processing is executed for the sub screen 103. In step S <b> 7, the control unit 27 selects the signal of the channel selected by the BS digital broadcast receiver 31 using the selector 15. In step S <b> 8, the control unit 27 sets the screen display position and screen size of the sub screen 103 in the display area 100 by the display processing unit 19, and obtains the write start position to the memory built in the display processing unit 19. In step S9, the image reading position and the screen size of the sub screen 103 are set, and the reading start position from the memory built in the display processing unit 19 is set. In step S10, the display processing unit 19 starts writing in accordance with an instruction from the control unit 27, and in step S11, the display processing unit 19 starts reading. In step S12, the control unit 27 instructs the display processing unit 19 to stop writing and reading. A BS digital broadcast still image is displayed on the sub-screen 103 in steps S7 to S12.

  Similarly, the same processing is executed for the sub screen 104 to the sub screen 106. Steps S13 to S18, steps S19 to S24 following FIG. 5, and steps S25 to S30 in FIG. 5 correspond to steps S1 to S6. In this way, the processing of the video to be displayed on the sub screen is executed in order, and when the display processing is completed, the display processing of the sub screen 102 is repeated. That is, while the selected channel is being broadcast on the main screen, the sub screen includes an analog tuner 12, an analog tuner 13, a BS digital broadcast receiver 31, a terrestrial digital broadcast receiver 32, a CS digital broadcast receiver 33, The video sent from the DVD playback device 34 is displayed as a still image while being sequentially updated at a predetermined cycle.

  Through the above processing, the terrestrial analog broadcast channel is displayed on the sub screen 102, the BS digital broadcast is displayed on the sub screen 103, the terrestrial digital broadcast is displayed on the sub screen 104, and the CS digital broadcast is displayed on the sub screen 105. The reproduced video from the DVD playback device is displayed on the sub-screen 106. In addition, the control unit 27 controls each device, and the video from the electronic device displayed on the sub screen is sequentially updated every predetermined time. As a result, the user can see images that are sequentially updated on the sub screen while viewing the main screen.

  When the TV 1 receives a sub screen channel change instruction from the user when the main screen and the sub screen are displayed by the processing of FIGS. 4 and 5, the TV 1 displays the sub screen with the cursor moved as a moving image. To do. A case where the user operates the remote controller 40 from the display state of FIG. 2 and moves the cursor displayed as the GUI to the sub screen will be described with reference to FIGS. The movement of the cursor is instructed by the up / down / left / right keys of the remote controller 40. For example, the cursor is moved from the main screen to the sub screen 102 by the right key 41d. Subsequently, the up and down keys 41a and 41b are used to move from the sub screen 102 to the sub screen 106. The cursor selecting the sub screen can be moved to the main screen by the left key 41c.

  FIG. 6 shows a process when an instruction to move the cursor from the main screen to the sub screen 102 is given by the right key 41d. When receiving the cursor movement signal, the control unit 27 instructs the display processing unit 19 to stop writing and reading in step S41. In step S 42, the display processing unit 19 is instructed to change the cursor display position from the main screen 101 to the sub screen 102. Next, in step S43, the control unit 27 selects the signal of the channel selected by the sub-display analog tuner 13 by the selector 16. In step S <b> 44, the control unit 27 sets the screen display position and the screen size of the sub screen 102 in the display area 100 by the display processing unit 19, and obtains the write start position to the memory built in the display processing unit 19. In step S45, the image reading position and the screen size of the sub screen 102 are set, and the reading start position from the memory built in the display processing unit 19 is set. In step S46, writing to the display processing unit 19 is started by an instruction from the control unit 27, and reading from the display processing unit 19 is started in step S47.

  Next, FIG. 7 shows processing when an instruction to move the cursor from the sub screen 102 to the sub screen 106 is given by the up / down keys 41a and 41b. When receiving the cursor movement signal, the control unit 27 instructs the display processing unit 19 to stop writing and reading in step S51. In step S52, the display processing unit 19 is instructed to change the display position of the cursor from the sub screen 102 to the sub screen 103. Next, in step S53, the control unit 27 selects the signal of the channel selected by the BS digital broadcast receiving apparatus 31 by the selector 16. In step S <b> 54, the control unit 27 sets the screen display position and the screen size of the sub screen 103 in the display area 100 by the display processing unit 19, and obtains the write start position in the memory built in the display processing unit 19. In step S55, the image reading position and screen size of the sub screen 103 are set, and the reading start position from the memory built in the display processing unit 19 is set. In step S56, writing to the display processing unit 19 is started by an instruction from the control unit 27, and reading from the display processing unit 19 is started in step S57.

  Further, when an instruction to move the cursor to the main screen is given by the left key 41c, the control unit 27 instructs the display processing unit 19 to stop writing and reading, and the display processing unit 19 is cursored. Is instructed to change the display position from the sub screen 103 to the main screen 101. Thereafter, the process shown in FIG. 4 is executed.

  Further, for example, when the user moves the cursor displayed as the GUI to the sub screen 103 by the operation from the remote controller 40 as shown in FIG. 8 from the display state shown in FIG. 2, a request for changing the channel of the sub screen 103 is issued. When the key operation is performed, the TV 1 transmits a signal for operating the channel change to the device that is the transmission source of the video signal displayed on the sub screen 103. The process at this time is shown in FIG.

  When a key operation for a channel change request is performed from the remote controller 40 with the cursor positioned on the sub screen 103, the control unit 27 in the TV 1 receives a remote control signal from the remote controller 40 as step S61, and in step S62. Decode the remote control signal. In step S <b> 63, the control unit 27 determines the transmission source receiver from the sub-screen selected by the cursor, and extracts the SIRCS code representing the channel change signal of the BS digital broadcast receiver 31. In step S64, the control unit 27 transmits the extracted SIRCS code from the remote control signal output unit 26.

  When selecting a channel to be output to the outside, as shown in FIG. 10, in step S71, the control unit 27 receives the video signal displayed on the sub-screen selected by the cursor. In step S72, the selector 17 selects and outputs a video signal from the BS digital broadcast receiver 31. Next, in step S73, the control unit 27 stores information on the signal output from the output terminal 24 in the EPROM 21, and rewrites the output signal information displayed on the OSD 108 in step S74.

  Thus, the user can select a program that the user wants to watch while simultaneously viewing a plurality of videos, and can select a video to be output to an external device for recording. As the selection method of the sub screen, there are a method of pointing the selected screen by the OSD mark display in addition to the cursor display, a method of displaying the screen selected by characters, and the like. Other OSD displays may be used.

  In addition to changing the channel, by selecting a sub screen with the cursor, other settings of the device sending the video signal to the selected sub screen can be changed. In this case, a remote control signal for changing the setting is selected from the operation signal memory 20.

  The display device of the present invention can be applied to a display portion of a television receiver as in the above-described specific examples, and can be used when video signals are input from a plurality of devices and displayed collectively.

It is a block diagram explaining a television receiver (TV) to which a display device shown as a specific example of the present invention is applied. It is a figure explaining the multiscreen display displayed on the display device of the said TV. It is a figure explaining the remote controller which operates the said TV. FIG. 11 is a diagram for describing processing for displaying video signals and audio signals input from other devices connected to the TV in a divided area of the display device 23; FIG. 11 is a diagram for describing processing for displaying video signals and audio signals input from other devices connected to the TV in a divided area of the display device 23; It is a figure explaining the process when the instruction | indication which moves a cursor from a main screen to a sub screen with the right key of the remote controller shown in FIG. 3 is given. It is a figure explaining the process when the instruction | indication which moves a cursor up and down a subscreen area | region with the up / down key of the remote controller shown in FIG. 3 is given. It is a figure explaining the process when the instruction | indication which moves a cursor to the main screen is given by the left key of the remote controller shown in FIG. It is a figure which shows typically the place which moves a cursor and selects a sub screen. It is a figure explaining the process which designates the video signal which moves a cursor and outputs.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Television receiver (TV), 11 Antenna, 12, 13 Analog tuner, 14 Input terminal, 15, 16, 17 Selector, 18 Audio selector, 19 Display processing part, 20 Operation signal memory, 21 EPROM, 22 Speaker, 23 Display device, 24 output terminal, 25 remote control signal light receiving unit, 26 remote control signal output unit, 27 control unit

Claims (16)

A signal input means for inputting a plurality of video signals and audio signals from the outside;
Display means for displaying the input video signal;
Display processing means for dividing the display area of the display means into a main area and at least one sub area and assigning the plurality of video signals to each area;
Operation means for operation input for selecting a main area or a sub area in the display area;
Device operation signal storage means for storing an operation signal for operating the electronic device that is the transmission source of the video signal and the audio signal;
A display device comprising: an operation signal transmitting unit configured to transmit an operation signal for operating an electronic device which is a transmission source of a video signal displayed in an area selected by the operation unit to the electronic device.   The display device according to claim 1, wherein the display processing unit displays a region selected by the operation unit as a moving image and displays a region other than the selected region as a still image.   As the signal input means, a main channel selecting means for selecting a broadcast wave channel including a video signal displayed in the main area and a broadcast wave channel including a video signal displayed in the sub area are selected. The display device according to claim 1, further comprising sub-tuning means.   2. The display device according to claim 1, wherein the plurality of video signals and audio signals are carried by broadcast waves having different formats.   The display device according to claim 1, wherein the plurality of video signals and audio signals include a video signal and an audio signal reproduced from a recording medium.   The display device according to claim 1, wherein the signal transmission unit outputs the operation signal as an infrared signal to the electronic device.   7. The display device according to claim 6, wherein the signal generating means generates an operation signal based on SIRCS (Serial Infrared Remote Control System). A signal input process for inputting a plurality of video signals and audio signals;
A display processing step in which when the input video signal is displayed on the display means, the display area of the display means is divided into a main area and at least one sub area, and each video signal is assigned to each area and displayed. A display method characterized by that.   9. The display method according to claim 8, wherein in the display processing step, the region selected in the operation step is displayed as a moving image, and a region other than the selected region is displayed as a still image.   9. A display method according to claim 8, wherein the plurality of video signals and audio signals are carried by broadcast waves having different formats.   9. The display method according to claim 8, wherein the plurality of video signals and audio signals include video signals and audio signals reproduced from a recording medium. A signal input process for inputting a plurality of video signals and audio signals;
When displaying the input video signal on the display means, a display processing step of dividing the display area of the display means into a main area and at least one sub-area, and assigning to each area for each video signal;
An operation step in which an operation of selecting a main area or a sub area in the display area is performed;
An operation signal transmission step of selecting an operation signal for operating the electronic device that is a transmission source of the video signal displayed in the region selected in the operation step from the device operation signal storage unit and transmitting the operation signal to the electronic device. An electronic device operating method characterized by the above.   13. The electronic device operation method according to claim 12, wherein in the signal transmission step, the operation signal is output to the electronic device by infrared communication.   14. The electronic device operating method according to claim 13, wherein in the signal generating step, an operation signal is generated based on SIRCS (Serial Infrared Remote Control System).   13. The electronic device operating method according to claim 12, wherein the plurality of video signals and audio signals are carried by broadcast waves having different formats.   13. The electronic device operating method according to claim 12, wherein the plurality of video signals and audio signals include a video signal and an audio signal reproduced from a recording medium.

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