JP5546090B2 - Information processing apparatus, display apparatus, and display system - Google Patents

Description

  The present invention relates to a display device that performs multi-screen simultaneous display, and an information processing device (such as a personal computer) connected to the display device. And display systems.

  A general display used in an information processing apparatus such as a personal computer (hereinafter referred to as a PC) is configured so that a user can arbitrarily set and change screen display functions such as brightness and contrast. In recent years, displays that have a plurality of input interfaces and display not only PC screens but also multiple screens, such as televisions, have become widespread.

  In such a display, it is possible to simultaneously display a screen (child screen) for displaying a sub video source within a screen (main screen) for displaying a main video source. The parent screen is displayed on the entire monitor, but the child screen is displayed in a small window at a corner in the parent screen, for example.

  On the front surface of the display, there are provided a screen display function, buttons for adjusting the size and position of the sub-screen, and the like. In many cases, a remote controller or the like having a button having a similar function is provided. The user can change the settings to the desired sub-screen position and size by manipulating them manually, or see the setting screen (hereinafter referred to as OSD menu) displayed on the display by the OSD function. Change the setting to. In order to change the size and position of the sub-screen, it is common to select from a plurality of setting conditions predetermined by the manufacturer.

However, the buttons, remote control, etc. described above have poor operability and are troublesome for the user. In view of this, an image display apparatus has been proposed in which a user can change the screen display function using an operation device (such as a keyboard and a mouse) for operating the PC (see, for example, Patent Document 1).
JP2001-175378

  The image display device described in Patent Document 1 describes that an OSD menu is operated with a mouse or the like to change settings. However, even if the OSD menu can be operated with a mouse or the like, in order to change the size and position of the sub-screen, the configuration in which the manufacturer still selects from a plurality of preset conditions remains unchanged. The setting flexibility was poor.

  In addition, there are a large number of setting conditions prepared in advance, and even if there are conditions of the target child screen size and position, the OSD menu is operated with a mouse or the like to set the target child screen. The size and position setting conditions have to be selected (by pressing the button many times, for example), which is problematic for the user.

  The present invention provides an information processing device, a display device, and a display system that can intuitively and easily change a sub-screen display condition of a display that performs multi-screen simultaneous display to a condition desired by a user. Objective.

According to the first aspect of the present invention, the first video signal is generated and output to the connected display device, and the video signal output means displayed on the display device outputs the first video signal . child screen size for displaying an image based on different second video signal from the first video signal, and operator for accepting a change instruction operation of the setting of the position, size of the child screen displayed on the display device, Sub-screen setting information changing means for generating sub-screen setting information, which is information for determining a position, in response to a change instruction operation received from the operator, and transmitting the sub-screen setting information to the display device. When the change instruction operation is received from the operation element, the information change unit generates non-display instruction information for making the child screen of the display device in a non-display state, transmits the non-display instruction information to the display device, and the change instruction operation The operation element in Operation size depending on of synthesizes the Gijiko screen to change the position in the first video signal, the size of the child screen at the operator, when receiving an operation for determining the position, the Gijiko screen The display instruction information for erasing and displaying the sub-screen of the display device together with the determined sub-screen setting information is transmitted to the display device.

  In the present invention, a control signal is transmitted from a PC connected to a display that simultaneously displays a child screen (screen displayed on a display) inside a parent screen (screen displayed on the entire display surface). The control signal is transmitted as a control command by DDC / CI (Display Data Channel Command Interface) which is a standard defined by, for example, VESA (Video Electronics Standards Association). When the PC receives an instruction to change the size and position of the sub-screen from the user with an operation unit such as a mouse, the PC transmits a control signal to the display in response thereto. The display changes the size and position of the sub-screen according to the control signal.

  According to the present invention, when the user performs an instruction to change the size and position of the child screen using an operator such as a mouse, the child screen is temporarily hidden. When the setting is changed, the sub screen is displayed again. Since the child screen is temporarily hidden, the user operation is not hindered. When the user performs an operation to change the size and position of the child screen using an operator such as a mouse, a pseudo child screen is generated in the image memory of the PC. This pseudo child screen is displayed on the display. As a result, the user can confirm the size and position to be set on the display, and the setting can be changed more easily. When the user finishes the operation to change the size and position of the child screen with an operator such as a mouse, the pseudo child screen is deleted. The pseudo child screen is only temporarily displayed, and subsequent screen display is not hindered.

According to a second aspect of the present invention, in the above invention, the pseudo child screen is only a screen frame or is translucent.

  In the present invention, the pseudo child screen is a semi-transparent window only in the window frame. By making only the frame or translucent, the user's operation is not hindered.

According to a third aspect of the present invention, in the above invention, the pseudo child screen is a video screen that displays a video to be currently displayed on the child screen of the display device.

  In the present invention, the pseudo child screen is a real image screen (for example, a television image) displayed on the child screen of the display. In order to display the real image of the child screen in real time, the real image information of the connected display may be received from the display. For example, video data is received from a display via a dedicated line (USB or the like).

According to a fourth aspect of the present invention, in the above invention, the sub-screen setting information storing unit that stores the sub-screen setting information and the sub-screen setting information stored in the sub-screen setting information storing unit are selected and read out. The apparatus further comprises setting information selection means for transmitting the read small screen setting information to the display device.

  In the present invention, the setting condition of the small screen is stored in the storage device (hard disk drive or the like) of the PC. By reading the stored setting conditions, the conditions previously specified by the user can be set at any time. Further, since it is stored in a storage device of a large-capacity PC, a large number of setting conditions can be stored. As a result, the user can save a number of sub-screen settings corresponding to the display usage conditions (for TV viewing, for games, and for personal computers).

The invention according to claim 5 is a display system comprising an information processing device and a display device connected to the information processing device, wherein the display device inputs video signal input means for inputting a plurality of video signals. And display setting information storage means for storing the child screen setting information which is the setting information of the size and position of the child screen to be displayed, based on the child screen setting information stored in the display setting information storage means, Screen display means for displaying a video based on any one of the plurality of video signals on the main screen and a video based on another video signal on the sub-screen, and receiving control information from the information processing apparatus Control information receiving means, wherein the information processing device generates a video signal and outputs the video signal to the display device; and setting of the size and position of the sub-screen displayed on the display device Change An operator that receives a display operation; and a child screen setting information changing unit that generates the child screen setting information according to a change instruction operation received from the operator and transmits the information to the display device. When the change instruction operation is received from the operator, the screen setting information changing unit generates non-display instruction information for making the child screen of the display device in a non-display state, and transmits the non-display instruction information to the display device. The display means, when receiving the non-display instruction information, puts the sub-screen in a non-display state, and the sub-screen setting information changing means changes the size and position according to the operation of the operator in the change instruction operation. The pseudo child screen to be changed is synthesized with the video signal, and when the operation to determine the size and position of the child screen is received with the operation element, the pseudo child screen is deleted, together with the determined child screen setting information, Above Display instruction information for displaying the child screen of the display device is displayed to the display device, and the display device stores the child screen stored in the display setting information storage unit based on the received child screen display setting information. A change means for changing the setting information is provided, and the screen display means puts the child screen in a display state when the display instruction information is received .

  As described above, according to the present invention, it is possible to intuitively and easily change the sub-screen display condition of the display that performs multi-screen simultaneous display to a condition desired by the user using an operator such as a mouse or a keyboard.

Hereinafter, a display system according to an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a display system according to an embodiment of the present invention. This display system includes a PC 1 and a display 2 connected to the PC 1.

  The PC 1 includes an interface 11 that transmits and receives data to and from the display 2, a control unit 12 that comprehensively controls the PC 1, a hard disk drive (HDD) 13 that is a storage unit, an operation unit 14 that is operated by a user, and a RAM 15 that is a work memory. It has. An interface 11, HDD 13, operation unit 14, and RAM 15 are connected to the control unit 12. The interface 11 is a general-purpose video signal output interface composed of an analog video output terminal (D-SUB) and a digital DVI input terminal.

  The PC 1 is connected to the display 2 via a general-purpose video signal cable such as an analog (RGB) connection cable or a digital (DVI) cable. The PC 1 transmits to the display 2 a PC video signal for screen display and a control signal for controlling the display 2. The control signal is transmitted as a control command by DDC / CI, which is a standard defined by VESA.

  The control unit 12 is constituted by a CPU, reads various programs stored in the HDD 13, develops them in the RAM 15, and performs various operations.

  The operation unit 14 includes input devices such as a mouse and a keyboard, and outputs an operation signal corresponding to a user operation to the control unit 12. The controller 12 performs various operations based on this operation signal.

  The display 2 is a display for a PC with a built-in tuner for television (hereinafter referred to as “TV”) broadcast, and is composed of, for example, an LCD, a CRT, or the like. In the present embodiment, a display 2 constituted by an LCD will be described. As shown in FIG. 1, the display 2 includes an interface 21 that performs data transmission / reception with the PC 1, a control unit 22 that controls the display 2 by performing various operations based on control signals received from the PC 1 via the interface 21, ROM 23 which is a storage unit, tuner 24 which receives and demodulates TV broadcast and outputs TV video signal and TV audio signal, audio processing unit 25 which processes (audio volume control) input audio signal, audio from input audio signal Is controlled by the image processing unit 27 and the image processing unit 27 that perform screen display processing from the PC video signal received from the PC 1 through the interface 21 and the TV video signal received through the tuner 24. A display unit 28 that is a liquid crystal display panel that performs screen display is provided.

  The interface 21 is a general-purpose video signal input interface including an analog video input terminal (D-SUB) and a digital DVI input terminal.

  An interface 21, a ROM 23, a tuner 24, a sound processing unit 25, and an image processing unit 27 are connected to the control unit 22. The control unit 22 is configured by a microcomputer incorporating a RAM. The control unit 22 reads various settings stored in the ROM 23 and develops them in a built-in RAM, and controls the tuner 24, the sound processing unit 25, and the image processing unit 27 connected thereto.

  The tuner 24 is connected to a TV antenna by an F-type TV terminal or the like, receives a TV signal of a standard defined by NTSC (National Television Standards Committee), demodulates it, and outputs a TV video signal to the image processing unit 27. To do. The tuner 24 selects and outputs only a TV video signal of a desired channel selected by an operation button (not shown) installed on the display 2 by the user. Further, the tuner 24 separates the TV audio signal from the received TV signal and outputs it to the audio processing unit 25. The volume of the audio signal is adjusted by the audio processing unit 25 and emitted from the speaker 26. In this example, the tuner 24 is described as a tuner for NTSC signals (analog broadcasting), but may be a tuner for digital broadcasting such as ISDB (Integrated Services Digital Broadcasting).

  An interface 21, a control unit 22, a tuner 24, and a display unit 28 are connected to the image processing unit 27. The image processing unit 27 drives the liquid crystal panel of the display unit 28 based on the PC video signal received from the PC 1 via the interface 21. Further, the liquid crystal panel of the display unit 28 is driven based on the TV video signal received via the tuner 24. The image processing unit 27 incorporates an A / D converter as necessary, and converts an analog video signal into a digital signal and performs processing when an analog video signal is received.

  The image processing unit 27 selectively displays either the PC video signal or the TV video signal on the display unit 28 based on an instruction from the control unit 22. Further, the image processing unit 27 can simultaneously display the PC video signal and the TV video signal on the display unit 28 on multiple screens based on an instruction from the control unit 22.

  FIG. 2 is a diagram for explaining multi-screen display. As shown in the figure, the image processing unit 27 synthesizes and displays a sub-screen 202 that is a sub video in a screen of a main screen 201 that is a main video based on an instruction from the control unit 22. For example, a screen display by a PC video signal is performed on the main screen 201, and a screen is synthesized by a TV video signal at a predetermined position in the screen (lower right of the screen in the figure) and displayed as a child screen 202. Note that whether the PC video signal or the TV video signal is displayed on the main screen and the sub screen may be selected by the user using an operation button or the like installed on the display 2, or a remote controller (not shown) or the like. You may make it select by. Further, as described above, the selection may be made by transmitting a control signal from the PC.

  The control unit 22 controls the image processing unit 27 and the audio processing unit 25 in accordance with the setting information (position, size, and sound selection of the child screen) developed in the RAM, and the position and size of the child screen 202 described above. In addition, the sound processing unit 25 sets the sound output to the speaker 26. As the sound, either the TV sound input from the tuner 24 or an external sound signal (for example, sound from the PC 1) is selected. Further, the audio selection information stored in the setting information describes information for determining whether to output the audio of the parent screen or the audio of the child screen. For example, when the audio selection information is described to output the audio of the main screen and the PC video signal is displayed on the main screen, the control unit 22 outputs the audio from the PC. Set to.

  This setting information is stored in the ROM 23. The ROM 23 stores a plurality of patterns of setting information, and the control unit 22 reads each setting information of the pattern selected according to the user's selection operation, and rewrites the information in the RAM. The control unit 22 controls the image processing unit 27 with the contents of the rewritten RAM, and sets the position and size of the child screen 202. Also, the audio processing unit 25 is controlled with the rewritten contents of the RAM, and the output audio is set. FIG. 3 is a diagram showing changes in the position and size of the sub-screen. As shown in FIG. 6A, the ROM 23 stores a plurality of patterns of setting information so that the child screen 202 is displayed at any one of the four corners of the main screen 201. Expands the setting information in the RAM to change the position of the sub-screen. Further, as shown in FIG. 5B, the ROM 23 stores a plurality of setting information of the child screens 202 having different sizes, and the control unit 22 develops each setting information in the RAM, thereby displaying the child screens. Change the size.

  The above change instruction may be performed by the user using an operation button or the like installed on the display 2, or may be performed by a remote controller or the like. Here, the pattern stored in the ROM 23 is read out, but arbitrary setting information may be written in the RAM. In the present embodiment of the present invention, the user can also instruct setting of arbitrary setting information using the operation unit 14 of the PC 1.

  In FIG. 1, when the user instructs to change the position and size of the child screen using the operation unit 14, the control unit 12 of the PC 1 controls the display 2 to change the position and size of the child screen. (DDC / CI) is transmitted. The HDD 13 of the PC 1 stores software for transmitting such a control signal, and the control unit 12 develops this software in the RAM 15 to transmit the control signal from the PC 1 to the display 2. Note that the channel change of the tuner 24 and the display video change of the parent screen and the child screen may also be performed using the operation unit 14 of the PC 1.

A case where the display 2 operates in accordance with the control signal transmitted by the PC 1 will be described.
The control unit 22 controls the connected tuner 24, audio processing unit 25, and image processing unit 27 based on a control signal (DDC / CI) transmitted from the PC 1 via the interface 21.

  The control unit 22 rewrites the information developed in the RAM based on the control signal received from the PC 1. For example, when a control signal is transmitted from the PC 1 to change the display position of the child screen 202 to the upper right in the parent screen 201, the setting information developed in the RAM is rewritten accordingly. The image processing unit 27 is controlled according to the rewritten RAM setting information, and the display position of the sub-screen 202 displayed on the display unit 28 is set. Note that the control unit 22 of the display 2 may change screen display functions such as brightness and contrast based on a control signal from the PC 1 in addition to changing the position and size of the sub-screen. The control unit 22 may also set the power on / off of the display 2 and the volume of the speaker 26 (audio processing unit 25) in accordance with the control signal.

  The display system according to the embodiment of the present invention can freely change the position and size of the child screen intended by the user in addition to the position and size of the child screen based on the setting information stored in the ROM 23 in advance. Is possible. Hereinafter, a case where the child screen is changed to the position and size intended by the user will be described.

  FIG. 4 is a diagram showing a change in the position and size of the child screen when the user arbitrarily sets. In the figure, a PC video signal is displayed on the main screen 201. On the parent screen 201, a cursor 250 that moves in accordance with a user operation of the operation unit 14 is displayed. First, when the user instructs to change the setting of the sub-screen using the operation unit 14 (for example, setting change is specified by operating the setting change software that is running), as shown in FIG. In place of the child screen 202 displayed on the screen, the pseudo child screen 203 is displayed at the same position and in the same size. The pseudo child screen 203 is displayed by changing the output video signal developed in the RAM 15 (or video output dedicated memory) by the control unit 12 of the PC 1. That is, on the display 2, the child screen 202 may be deleted and only the parent screen 201 may be displayed on the display unit 28. Erasing the sub-screen 202 on the display 2 can be realized by the control unit 12 of the PC 1 transmitting a control signal.

  The pseudo child screen 203 is displayed as a window in the basic software (OS) of the PC 1. The pseudo child screen 203 is displayed only as a window frame or as a semi-transparent window. By displaying only the frame or as translucent, the user's operation of the PC 1 is not hindered. In addition, you may make it display the real image | video (for example, image | video of TV) image which should be displayed on the subscreen 202 as the pseudo subscreen 203 in real time. In this case, the video data (video signal) of the real video displayed on the child screen is received from the display 2 via a dedicated line (USB or the like). Of course, the PC 1 may receive the video signal via the connection cable that transmits the video signal to the display 2. When the tuner is built in the PC 1, the same video as the video channel displayed on the sub-screen of the display 2 may be displayed from the tuner in real time.

  In this state, the user can operate the pseudo child screen 203 in the same manner as a normal window in the OS of the PC 1. That is, as shown in FIG. 5A, the operation unit 14 (mainly the mouse) is operated to move the cursor 250 to an arbitrary position in the pseudo child screen 203, and the mouse is clicked (dragged) in this state. Thus, the position of the pseudo child screen 203 can be freely changed. Also, as shown in FIG. 4B, the operation unit 14 (mainly a mouse) is operated to move the cursor 250 to the end (window frame) of the pseudo child screen 203, and the mouse is dragged in this state. Thus, the size of the pseudo child screen 203 can be freely changed. When the user changes the position and size of the pseudo child screen 203 and instructs the end of the setting change (operating the setting change software that is running to specify the end of the setting change), FIG. As shown in (A) and (B) of the figure, the pseudo child screen 203 is deleted, and the child screen 202 is displayed again at the same position and the same size.

  That is, after the user changes the position and size of the pseudo child screen 203, the control unit 12 of the PC 1 controls the control unit 22 of the display 2 to display the child screen similarly to the setting conditions of the pseudo child screen 203. Send a signal. The control unit 22 rewrites the setting conditions developed in the RAM to the setting conditions in which the user has changed the pseudo child screen 203 as described above. Thereby, it can change to the magnitude | size and position of a user's desired subscreen.

  As described above, the pseudo child screen 203 is displayed at the same position and the same size as the child screen 202 before and after the setting change, so that the user directly changes the size and position of the child screen 202. You can feel like you are. Moreover, it is not limited to the setting conditions of the several subscreen previously memorize | stored in the display 2, It can change to a user desired position and magnitude | size easily.

  Further, by storing the above setting conditions in the ROM 23 of the display 2, the conditions once set can be read at any time. By storing the setting conditions in the ROM 23, the setting conditions can be read at any time even when the PC 1 is not connected. Further, in the display system according to the embodiment of the present invention, it is possible to store the above setting conditions in the HDD 13 of the PC 1. When the user uses the operation unit 14 to give an instruction to store the setting conditions (operating the activated setting change software to specify saving of the setting conditions), the control unit 12 causes the HDD 13 to display a child screen. The setting conditions indicating the position and size are stored. The next time the user wants to change the position and size of the child screen, he / she only has to be instructed to read the setting conditions stored in the HDD 13. When the user issues a read instruction, the control unit 12 reads the setting condition stored in the HDD 13 and transmits a control signal to the control unit 22 of the display 2 so as to display a sub-screen under the setting condition. The control unit 22 rewrites the setting conditions expanded in the RAM to the setting conditions stored in the HDD 13 described above. Thereby, it can change to the magnitude | size and position of the desired subscreen which the user changed in the past at any time. The operation of storing the setting conditions in the HDD 13 may be automatically performed by the activated setting change software.

  Since the storage capacity of the HDD 13 is larger than the storage capacity of the ROM 23 of the display 2, the user can set a number of sub-screen settings according to the use conditions of the display 2 (for TV viewing, for games, for personal computers). Can also be saved.

  The above description shows a case where the user changes the setting of the sub-screen of the display 2 by operating the software built in the PC 1, but according to the configuration of the present invention, another PC (for example, connected via a network) It is also possible to change the setting of the sub-screen by operating the software built in the management PC and giving the control instruction to the PC by the management PC. Further, when a plurality of PCs 1 are connected, the management PC can also instruct to change the settings of all the display systems.

  FIG. 6 is a block diagram showing a configuration of a display management system using a management PC connected to a plurality of PCs over a network. The management PC 4 can instruct each PC 1 connected via the network 3 to transmit a control signal for changing the setting of the child screen. The setting of the small screen may be designated by a user operating the management PC 4 or setting information stored in advance in an HDD (not shown) of the management PC 4 may be read. The network 3 may be wired or wireless. The management PC 4 transmits instruction information to each terminal PC 1 by TCP / IP. That is, the management PC 4 can manage the sub-screen settings of all the displays 2 via each PC 1 and can change the position and size of the sub-screen collectively. It is also possible to change the position and size of the sub-screen individually for each display.

  The PC 1 and the management PC 4 can also refer to the contents expanded in the RAM of the control unit 22 of the display 2. The control unit 12 of the PC 1 transmits a control signal for enabling the contents developed in the RAM to be read to the control unit 22 of the display 2. In accordance with this, the control unit 22 outputs the contents of the RAM to the PC 1. The PC 1 reads the contents of the RAM output from the control unit 22. Thus, the PC 1 can acquire the current child screen setting condition of the display 2, and the management PC 4 can acquire and manage the current child screen setting of the display 2 from each PC 1.

  Next, the operation of the display system will be described in detail. FIG. 7 is a flowchart showing the child screen changing operation of the display system. First, the control unit 12 of the PC 1 determines whether or not the user has instructed a setting change (s10). As described above, the user gives an instruction to change the setting using the activated dedicated setting change software or the like. When the setting change is instructed, the control unit 12 transmits a control signal to the display 2 so as to delete the small screen (s11). The control unit 22 of the display 2 receives this (s20), deletes the child screen, and displays only the parent screen (PC video signal) (s21). Here, the control signal transmitted by the control unit 12 is transmitted by a command conforming to the DDC / CI standard, but the PC video signal is always transmitted to the display 2, and the PC video signal is displayed on the parent screen. Is always displayed.

  Thereafter, the control unit 12 of the PC 1 synthesizes and develops a pseudo child screen on the PC video signal (s12). The pseudo child screen is displayed by changing the output video signal developed in the RAM 15 (or video output dedicated memory). The control unit 12 changes the position and size of the pseudo child screen according to the user's operation (drag operation with the mouse) (s13).

  The control unit 12 determines whether or not an instruction to end the setting change is given (s14), and if there is no setting change end instruction. The process of changing the pseudo child screen according to the user's operation is repeated (s14 → s13). When the setting change end instruction is given, the setting conditions of the child screen displayed on the display 2 are determined so that the child screen is displayed at the current position and size of the pseudo child screen (s15). Thereafter, a control signal for changing the setting condition of the child screen and a control signal for redisplaying the child screen are transmitted to the display 2 (s16). The control unit 22 of the display 2 receives this (s22), changes the child screen setting conditions developed in the RAM, and redisplays the child screens under the changed conditions (s23).

  The control unit 12 transmits a control signal for changing the child screen setting condition to the display 2, and then deletes the pseudo child screen (s17). Further, the user can instruct the HDD 13 to store the changed small screen setting conditions manually. By storing the setting conditions in the HDD 13, the subsequent setting conditions can be read, and the user can easily specify the conditions changed in the past. This storage process may be automatically performed by the control unit 12 after the process of s17.

  In the display system of the present embodiment, an example in which the PC 1 transmits a control signal to change the setting of the small screen has been shown. However, of course, operation buttons and remote controllers installed on the display 2 as in the conventional display It is also possible to change the settings of the sub-screen using a touch panel or the like.

  As described above, the display system according to the present embodiment can change the setting condition of the child screen by transmitting the control signal from the PC 1 connected to the display 2. In this display system, the user can easily change the size and position of a desired sub-screen by operating the pseudo-sub-screen displayed on the display using an operation unit such as a mouse. In addition, the setting condition of the child screen can be changed collectively from the management PC 4 that manages each PC 1.

  In the present embodiment, an example in which the PC 1 transmits a control signal by command transmission and reception compliant with the DDC / CI standard using a video signal cable is shown, but the present invention is not limited to this. For example, the control signal may be transmitted using a USB or a dedicated interface. Further, the control signal is not limited to a wired connection by a cable, and may be transmitted by a wireless connection. Of course, the display is not limited to the LCD, but may be another display such as a CRT or a projector.

  In this embodiment, an example in which a PC is used as the information processing apparatus has been described. However, for example, another information processing apparatus such as a mobile phone may be used.

Block diagram of display system of the present invention Diagram explaining multi-screen display Figure showing changes in the position and size of the sub-screen The figure which showed the change of the position and the size of the small screen when the user sets arbitrarily Figure showing changes in the position and size of the sub-screen Block diagram showing the configuration of a display management system using a management PC connected to a plurality of PCs over a network Flowchart showing child screen changing operation of display system

Explanation of symbols

1-PC
2-Display 11- (PC) interface 12- (PC) control unit 13-HDD
14-operation unit 15-RAM
21- (display) interface 22- (display) control unit 23-ROM
24-tuner 25-audio processing unit 26-speaker 27-image processing unit 28-display unit

Claims (5)

Video signal output means for generating a first video signal and outputting the first video signal to a connected display device;
An operation for accepting a change instruction operation for setting the size and position of a sub-screen for displaying a video based on a second video signal different from the first video signal output from the video signal output means displayed on the display device With the child,
A sub-screen for generating sub-screen setting information, which is information for determining the size and position of the sub-screen displayed on the display device, according to the change instruction operation received from the operator and transmitting the sub-screen setting information to the display device Setting information changing means;
With
When the change instruction operation is received from the operator, the child screen setting information changing unit generates non-display instruction information for making the child screen of the display device in a non-display state, and transmits the non-display instruction information to the display device.
A pseudo child screen that changes the size and position according to the operation of the operator in the change instruction operation is combined with the first video signal,
When an operation for determining the size and position of the sub-screen is received with the operation element, the pseudo-sub-screen is erased, and a display instruction to display the sub-screen of the display device together with the determined sub-screen setting information An information processing apparatus that transmits information to the display device.   The information processing apparatus according to claim 1, wherein the pseudo child screen is only a screen frame or is translucent.   The information processing apparatus according to claim 1, wherein the pseudo child screen is a video screen that displays a video to be currently displayed on the child screen of the display device. Sub-screen setting information storing means for storing the sub-screen setting information;
4. The apparatus according to claim 1, further comprising setting information selection means for selecting and reading out the small screen setting information stored in the small screen setting information storing means and transmitting the read small screen setting information to the display device. The information processing apparatus according to any one of the above. A display system comprising an information processing device and a display device connected to the information processing device,
The display device includes video signal input means for inputting a plurality of video signals;
Display setting information storage means for storing child screen setting information which is setting information of the size and position of the child screen to be displayed;
Based on the sub-screen setting information stored in the display setting information storage means, the video based on any one of the plurality of video signals is displayed on the main screen, and the video based on the other video signals is displayed. Screen display means for displaying on the sub-screen;
Control information receiving means for receiving control information from the information processing apparatus;
With
The information processing apparatus includes:
Video signal output means for generating a video signal and outputting it to the display device;
An operator for accepting a change instruction operation for setting the size and position of the child screen displayed on the display device;
Sub-screen setting information changing means for generating the sub-screen setting information in response to a change instruction operation received from the operator and transmitting it to the display device;
With
When the change instruction operation is received from the operator, the child screen setting information changing unit generates non-display instruction information for making the child screen of the display device in a non-display state, and transmits the non-display instruction information to the display device.
The screen display means, when the non-display instruction information is received, the child screen is in a non-display state,
The sub-screen setting information changing unit synthesizes a pseudo-sub-screen that changes the size and position in accordance with the operation of the operator in the change instruction operation with the video signal,
When an operation for determining the size and position of the sub-screen is received with the operation element, the pseudo-sub-screen is erased, and a display instruction to display the sub-screen of the display device together with the determined sub-screen setting information Sending information to the display device;
The display device includes a changing unit that changes the sub screen setting information stored in the display setting information storage unit based on the received sub screen display setting information.
The display system, wherein the screen display means puts the child screen into a display state when the display instruction information is received.

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