JP2005091751A - Image display control method, image display device, display controller, computer and image display control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To speedily perform operations of an input device, by reducing the load with respect to the processing of indication input information from a specific PC. <P>SOLUTION: Indication input information on cursor movement etc., from an input device comprising a set of a keyboard 50 and a mouse 51 is outputted to an automatically selected active PC (e.g. PC 11) to calculate the local coordinates, on the basis of the indication input information, and a display control part 22 calculates global information, on the basis of the local coordinates to perform image display control over a display area of a corresponding monitor 21 on the basis of the global information. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an image display control method, an image display device, a display control device, a computer, and an image display control system for controlling display of image signals from a plurality of computers in a display area of a corresponding monitor.

  In recent years, ultra-high definition display screens used in computer systems and the like have been remarkably developed due to advances in liquid crystal panel manufacturing technology. For example, QUXGAW (Quad Ultra eXtended Graphics Array Wide: 3840 × 2400 pixels) and QUXGA (QuadGA) Image display devices (hereinafter referred to as “monitors”) having high-definition and high-pixel liquid crystal monitors such as Ultra eXtended Graphics Array (3200 × 2400 pixels) have been developed and sold, and images with a very large amount of information It became possible to display data with high definition.

  At the same time as this ultra-high-definition display screen, the processing capability of the personal computer that outputs image data (hereinafter referred to as “PC”) has also been improved. When complex calculations such as these are required, the response is not sufficient. For this reason, a dedicated PC for image processing corresponding to ultra-high resolution has been manufactured. However, this ultra-high resolution compatible PC is very expensive and generally difficult to use. It was.

  Therefore, conventionally, as shown in Patent Document 1, for example, there has been a system in which a plurality of control devices (PCs) are connected in parallel to perform distributed / parallel processing. That is, in this system, a plurality of PCs are connected via a network, and a single image or video is constructed while taking solidarity with each PC or individually. The constructed image is displayed on a monitor connected to each PC. These monitors are configured so as to be arranged in a square shape as a whole, and the displayed image is one large image as a whole.

JP-A-8-305485 (pages 1 to 4 and FIG. 1)

  However, in the above-described system, the keyboard / mouse is connected to only one main PC, and instruction input information from the keyboard / mouse as an input device is input to the other sub PC via the main PC. Become. For this reason, for example, when the main PC is performing heavy processing such as image processing, the instruction input information is not output to other sub PCs, and the keyboard / mouse operation is delayed. There is a problem that the operation stops depending on the state. There is also a problem that the entire system stops when the main PC is turned off.

  Furthermore, if the OS (Operating System) used by the PC is different and the network protocol is different, there is a problem that a system network cannot be constructed.

  Therefore, it may be possible to provide a dedicated PC for processing the instruction input information separately from these PCs. In this case, however, the production cost is increased and a dedicated installation place is required, and further, the system is consumed. There was a problem of increased power.

  The present invention has been made in view of the above problems, and can reduce the load on processing of instruction input information by a specific PC, and can perform an image display control method and image display capable of quickly operating an input device. An object is to provide a device, a display control device, a computer, and an image display control system.

  In order to solve the above-described problems and achieve the object, the present invention connects an image display device having a monitor and a plurality of computers, and displays image signals from the computers in the display area of the corresponding monitor. In the image display control method to be controlled, an output step of outputting predetermined instruction input information from one input means to a predetermined computer of the computers as necessary, and the predetermined information based on the instruction input information A corresponding output step based on the position information output from the predetermined computer and the selection output step in which the predetermined computer selects and outputs the position information of the generated predetermined information. And a display control process for performing display control of the display area of the monitor.

  According to a second aspect of the present invention, the selection output step is performed by the image display device or a display control device interposed between the image display device and each of the computers.

  According to a third aspect of the present invention, there is provided an image display control method for connecting an image display device having a monitor to a plurality of computers and controlling display of image signals from the computers in the display area of the monitor. An output step of outputting predetermined instruction input information from one input means to a predetermined computer of the computers as necessary, and a generation step of generating predetermined information including position information based on the instruction input information And a display control step of performing display control of the display area of the corresponding monitor based on position information in the generated predetermined information.

  The invention according to claim 4 is characterized in that, in the output step, the predetermined instruction input information of the entire computer input from one input means is output to the corresponding predetermined computer.

  The invention according to claim 5 is characterized in that the generation step is performed by the image display device or a display control device interposed between the image display device and each of the computers.

  According to a sixth aspect of the present invention, there is provided an image display apparatus having a monitor and displaying image signals from a plurality of computers connected to the monitor in a corresponding display area of the monitor. Input means for inputting, and display control means for performing display control of the display area of the corresponding monitor based on position information corresponding to the instruction input information from the input means.

  According to a seventh aspect of the present invention, the image display device further includes an information acquisition unit that outputs the instruction input information to a predetermined computer and acquires position information corresponding to the instruction input information from the predetermined computer. , Further provided.

  The invention according to claim 8 is characterized in that the image display device further comprises position information generating means for generating position information corresponding to the instruction input information.

  According to a ninth aspect of the present invention, there is provided a display control apparatus connected between a monitor and a plurality of computers and controlling display of an image signal from each computer in a corresponding display area of the monitor. And display control means for performing display control of the display area of the corresponding monitor based on position information corresponding to instruction input information from the input means.

  The display control device may further comprise information acquisition means for outputting the instruction input information to a predetermined computer and acquiring position information corresponding to the instruction input information from the predetermined computer. , Further provided.

  The invention according to claim 11 is characterized in that the display control device further comprises position information generating means for generating position information corresponding to the instruction input information.

  According to a twelfth aspect of the present invention, in a computer connected to a monitor and outputting an image signal to the monitor, predetermined information generating means for generating predetermined information based on instruction input information input, and the predetermined information generating means And a selection output means for selecting and outputting position information from the predetermined information generated in step (b).

  The invention of claim 13 is an image display control system for connecting a monitor to a plurality of computers and controlling display of an image signal from each computer in a corresponding display area of the monitor. And the computer according to claim 12, wherein the image display device has a display area of the corresponding monitor based on position information output from a predetermined computer of the computers. Display control is performed.

  The invention according to claim 14 is an image display control system according to claim 6 or 8, wherein a monitor and a plurality of computers are connected, and an image signal from each computer is displayed and controlled in a corresponding display area of the monitor. The image display device performs display control of the display area of the corresponding monitor based on the generated position information.

  Further, the invention of claim 15 is an image display control system according to claim 9 or 10, wherein a monitor and a plurality of computers are connected, and an image signal from each computer is displayed and controlled in a corresponding display area of the monitor. And a computer according to claim 12, wherein the display control device has a display area of the corresponding monitor based on position information output from a predetermined computer of the computers. Display control is performed.

  The invention according to claim 16 is an image display control system according to claim 9 or 11, wherein a monitor and a plurality of computers are connected, and an image signal from each computer is displayed and controlled in a corresponding display area of the monitor. The display control device performs display control of the display area of the corresponding monitor based on the generated position information.

  An image display control method, an image display device, a display control device, a computer, and an image display control system according to the present invention are based on instruction input information from one input device, and a predetermined PC (active PC) or image display Since the device or the display control device generates predetermined information and controls the image display of the display area of the corresponding monitor based on the position information of the predetermined information, the load on the processing of the instruction input information by a specific PC As a result, the input device can be operated quickly.

  DESCRIPTION OF EMBODIMENTS Embodiments of an image display control method, an image display device, a display control device, a computer, and an image display control system according to the present invention will be described below in detail with reference to the drawings of FIGS. The present invention is not limited to these embodiments, and various modifications can be made without departing from the scope of the present invention.

(Embodiment 1)
FIG. 1 is a configuration diagram showing an example of the configuration of an image display control system according to the present invention. In FIG. 1, the image display control system includes n (four in the embodiment) PCs 11 to 14, an image display device 20 having a monitor 21 such as a liquid crystal module, and the PDs 11 to 14 and the image display device 20. The communication control line 31 and video signal line 40 to be connected, a set of keyboard 50 and mouse 51 as input devices, and signal lines 52 and 53 for connecting the image display device 20 to the keyboard 50 and mouse 51 are configured. Yes.

  The image display device 20 includes a monitor 21 and a display control unit 22, and the display control unit 22 has n (four in the embodiment) input ports, and includes communication control lines 31 to 31 in the cable 30. The PC interface (hereinafter referred to as “PC I / F”) 23 for communicating with the PCs 11 to 14 via the network 34 and the video signal lines 41 to 44 within the cable 30 capture video signals from the PCs 11 to 14. Logic circuit 24, keyboard / mouse I / F (hereinafter referred to as “KBD / MS I / F”) 25 connected to keyboard 50 and mouse 51 via signal lines 52 and 53, PC I / F 23 and KBD / MS I / F 25 is constituted by a CPU 26 that performs signal processing of signals input from the I / F 25 and controls the logic circuit 24 and the entire image display device 20. The communication control lines 31 to 34 are, for example, a USB line, a PS / 2 line, a serial cable, and the like.

  As described above, the CPU 26 performs signal processing of signals input from the PC I / F 23 and the KBD / MS I / F 25 and determines where the mouse cursor (hereinafter simply referred to as “cursor”) is located. That is, in this embodiment, the monitor 21 can divide the display area into four parts corresponding to the four PCs 11 to 14 (see FIG. 1). It is determined in which display area the cursor is. Further, when transferring the key code input from the keyboard 50 to the PC, the CPU 26 determines to which PC it should be transferred. That is, it is not transferred to all PCs. Further, the CPU 26 calculates where the cursor should be drawn on the monitor screen based on the information from the PC I / F 23 and controls the logic circuit 24 to perform drawing based on the calculation result (calculated coordinate value). Let it be done.

  Here, the monitor screen is divided into four display areas. The display area where cursor display and keyboard key input are possible is called an active area, and the PC that drives this active area is called the active area. It is called active PC. The CPU 26 outputs information such as cursor movement and key code information to the active PC, and takes in the coordinate values of the cursor from the active PC.

  In addition, desktop coordinates managed by the OS of each of the PCs 11 to 14 are defined as local coordinates, and screen coordinates (coordinates on the monitor) managed by the image display device 20 are defined as global coordinates. The conversion between the local coordinates and the global coordinates can be performed by linear transformation. For example, the resolution output by a certain PC is (Xc, Yc), which is multiplied by a from the position on the monitor (X0, Y0). X coordinates are (local coordinates) = ((global coordinates) −X0) / a (the Y coordinates are also the same).

  The monitor 21 is one ultra-high resolution monitor having a resolution capable of simultaneously displaying output images of the four PCs 11 to 14. That is, the monitor 21 has display areas A to D divided corresponding to the PCs 11 to 14, and the output image input from the PCs 11 to 14 is input to the divided display areas A to D by the logic circuit 24. It is displayed at the same time based on the logic control.

  The configurations of the PCs 11 to 14 are the same, and the schematic configuration of the PC 11 is representatively shown in FIG. FIG. 2 shows only the components according to the present invention, but the normal PC 11 outputs a video signal and communicates with the graphic system for driving the image display device 20 and the image display device 20. For example, a port such as a USB, DDC / CI or serial port, a port such as a USB, PS / 2 or serial port for receiving a keyboard or mouse signal from the image display device 20 is provided. In this embodiment, a KBD / MS driver 15, a cursor display processing unit 16, and a hook driver 17 are also provided.

  The KBD / MS driver 15 receives the key code signal from the keyboard 50 and the state of the mouse button from the mouse 51 and the movement distance information in the X and Y directions via the image display device 20 and the communication control line 31.

  The cursor display processing unit 16 takes in information such as mouse movement output from the KBD / MS driver 15 and calculates the X and Y coordinate values. In a normal PC, the cursor display processing unit 16 draws the cursor at the calculated position. As described above, the command is output to the graphic card driver in the graphic system. In this embodiment, the command is output to the hook driver 17.

  The hook driver 17 is a component newly provided according to the present invention. The hook driver 17 hooks (interprets) the coordinate value and drawing command of the cursor calculated by the cursor display processing unit 16, and performs display control via the communication control line 31. To the unit 22. In this embodiment, since the drawing command is hooked by the hook driver, the cursor is not actually displayed on the monitor 21 by the cursor driver in the graphic system. This cursor is displayed by the logic circuit 24 of the image display device 20 described above.

  Further, when the hook driver 17 receives a cursor coordinate set command from the display control unit 22, the hook driver 17 moves the cursor position of the computer system in which the hook driver 17 is operating to a position designated by the display control unit 22. .

  Next, the cursor display control operation will be described with reference to FIGS. First, the user installs a hook driver in each of the PCs 11 to 14 to which the image display device 20 is connected, and then connects the PCs 11 to 14 and the image display device 20 with the communication control lines 31 to 34 and the video signal lines 41 to 44. Then, the PCs 11 to 14 and the image display device 20 are activated.

In FIG. 3, at the time of activation, the CPU 26 of the image display device 20 initializes an internal register (not shown) to an initial value or a previous final state value (step 101). The initial value may be set as follows.
1. The active PC / active area is, for example, a display area A shown in FIG. 5, a first display area where a valid video signal is input, a display area designated by a user operation, or a predefined display area.
2. The global coordinates (X, Y) of the cursor are the center of the active area or a predefined position.

  Next, the CPU 26 takes in information from the active PC (step 102), calculates coordinates on the monitor 21 (step 103), outputs the coordinate value to the logic circuit 24, and the logic circuit 24 sets the coordinate value. Display control of the monitor 21 for displaying the cursor is performed (step 104). When the PC is activated, the hook drivers of all the PCs 11 to 14 detect the cursor position and send information via the communication control line, but the CPU 26 takes in only the information from the active PC.

  The CPU 26 constantly monitors the KBD / MS I / F 25 and determines whether there is instruction input information from the keyboard 50 and the mouse 51 (step 105). If the instruction input information is present, it is determined whether the instruction input information is information such as cursor movement, mouse button click information, or key code information (step 106).

  Here, when the instruction input information is information such as cursor movement, that is, as shown in FIG. 5, when the user moves the cursor within the same display area A, for example, by (Δx, Δy), this movement amount Is sent to the active PC 11 via the communication control line 31 (step 107). As shown in FIG. 6, when the user moves the cursor from different display areas A to C, the current active PC is PC11, and the cursor is positioned at the end of the active area A (C and At the coordinates of “E”. Therefore, the CPU 26 changes the active PC from PC 11 to PC 13 and the active area from the display area A to C, and sends the coordinate value “E” of the cursor to the new active PC 13.

  If the instruction input information is mouse button click information, this click information is sent to the active PC 11 (step 108). If the instruction input information is key code information from the keyboard 50, this key information is sent. Code information is sent to the active PC 11 (step 109). Then, the CPU 26 returns to step 102 and takes in information from the active PC.

  Next, the cursor display control operation of the PC 11 will be described with reference to the flowchart of FIG. In FIG. 4, when the KBD / MS driver 15 of the active PC 11 receives information input via the image display device 20 and the communication control line 31 (step 201), whether this information is information such as cursor movement or the click of a mouse button Or key code information (step 202).

  Here, when the input information is information such as cursor movement, the cursor display processing unit 16 calculates local coordinates from the information such as movement (step 203). For example, when the movement amount is (Δx, Δy) and the original coordinate value is (X, Y), the new coordinate value is (X + Δx × k, Y + Δy × k). Since the input information is the coordinate value of “E” at the boundary of the active area C, the local coordinate of the cursor is calculated based on this coordinate value.

  Next, the cursor display processing unit 16 creates a drawing command based on the local coordinates (step 204). The created new coordinate value is transferred to the active PC, but the data format to be transferred is different. In the case of the calculation from the movement amount, the KBD / MS driver 15 generally supports the transfer amount. Therefore, the transfer is performed using the KBD / MS driver, and the coordinate value of the boundary of the newly applied active area is transferred. Is transferred using a newly installed hook driver (step 205).

  If the input information is mouse button click information, the KBD / MS driver 15 performs signal processing based on the click information (step 206), and outputs the processing result to the image display device 20 (step 207). ). If the input information is key code information, the KBD / MS driver 15 performs signal processing based on the click information (step 208), and outputs the processing result to the image display device 20 (step 209).

  Next, the cursor display operation will be described using the cursor display states shown in FIGS. First, in FIG. 5, when the user moves the cursor 1 by (Δx, Δy), the CPU 26 sends the value of the movement amount (Δx, Δy) to the active PC 11. At this time, it is information such as how many times the mouse ball has rotated in the X and Y directions, rather than numerical values representing coordinates. This information is not sent to the inactive PC, but only to the active PC. The KBD / MS driver 15 of the active PC 11 calculates new coordinate values (X + Δx × k, Y + Δy × k) from the original coordinate values. Note that k is a coefficient set in the OS, and this coefficient may be different for each computer. At this time, the image display device 20 can read k in advance and adjust Δx and Δy in combination with the screen resolution and display magnification to make the movement speed of the cursor 1 on the monitor 21 constant. is there.

  The new coordinate value is hooked by the hook driver 17 and sent to the image display device 20 via the communication control line 31. At this time, the CPU 26 checks whether or not the cursor 1 is moving within the current active area. If it is within the current active area, the CPU 26 controls the logic circuit 24 to draw the cursor 1. In addition, when the cursor 1 moves to the boundary of the current active area and Δx and Δy increase or decrease beyond the boundary, the user is trying to move across the display area (see FIG. 6). It becomes.

  When the CPU 26 detects the movement of the cursor across the display area, the active PC is the current active PC 11 and the cursor coordinates are at the boundary of the active area A as shown in FIG. Therefore, the CPU 26 changes the active PC and the active area to the PC 13 and the display area C. Then, the coordinate value of the cursor 1 (the coordinate value of “E”) is sent to the new active PC 13 via the communication control line 33 and set. As a result, the cursor can be moved beyond the display area.

  Here, it should be noted that even if there is only one cursor 1 displayed on the screen of the monitor 21, each PC holds a “invisible” cursor. That is, in FIG. 6, when the cursor 1 has moved to the display area C, the PC 11 remains in the state where the cursor 1 remains at the coordinate value “E”. However, since the CPU 26 does not send the cursor information to anything other than the active PC, the cursor information is not sent to the display area A while the display area C is active. No matter where the cursor is in the display area A, it is not displayed and has no effect.

  If the cursor 1 returns to the area of the display area A again as shown in FIG. 7, the cursor 1 moves to the position of the coordinate value “F” instead of the position “E”. At this time, in order to clarify the input focus of the keyboard 50 (setting indicating which display area the key code is sent to), it is also possible to return the inactive PC display area to the inactive state. is there. For this purpose, a setting is made to notify the hook driver that the cursor has left the active area. The hook driver sets notification to the OS so that the display area is brought into an inactive state.

  Alternatively, the CPU 26 waits until the cursor 51 is clicked in the new active area and when the cursor is clicked, the input focus is moved. At this time, the inactive command is sent to the hook driver of the previous active PC. It may be sent out.

  If each PC has a sound output function, only the sound output function of the active PC is turned on to output sound, and the sound output of other PCs is stopped or the volume is reduced. Such processing may be performed by the PC.

  As described above, in this embodiment, a set of keyboard and mouse is connected to the image display device, and the keyboard or mouse instruction input information is sent from the image display device to the selected active PC as necessary. Therefore, the user can operate a plurality of PCs as if they were one PC, thereby reducing the load on the processing of instruction input information by a specific PC, and operating the input device quickly. .

  In this embodiment, the PC automatically selected by the image display device is set as the active PC by the hook driver, and only this active PC can calculate the coordinate value of the cursor and display the cursor. Only one cursor is displayed, and the input device can be operated quickly.

  Further, in this embodiment, only the active PC is related to the cursor display, and each PC exists completely independently, so that the load on the processing of the instruction input information by the specific PC can be reduced. Even if the power of a certain PC is turned off, other PCs are not affected by this, and it is possible to prevent the entire system from being stopped. Further, in this embodiment, since each PC is completely independent, a system network can be constructed even if the OS used by the PC is different. Further, since the scale of the program related to the image display control method is small, it is possible to construct the program with little dependence on the OS / application.

  In this embodiment, since the CPU detects the active PC and displays the cursor in the corresponding display area, the configuration is simple and the manufacturing cost is reduced compared to the case where a conventional dedicated PC is provided. And the power consumption of the system can be reduced.

(Embodiment 2)
In the first embodiment, the calculation of the coordinate value of the cursor is performed on the PC side, but the present invention is not limited to this, and can be performed on the image display apparatus side. The operation of the image display apparatus will be described below based on the flowchart of FIG.

  The CPU 26 constantly monitors the KBD / MS I / F 25 and determines whether there is instruction input information from the keyboard 50 and the mouse 51 (step 301). If this instruction input information is present, it is determined whether the instruction input information is information such as cursor movement, mouse button click information, or key code information (step 302).

  Here, when the instruction input information is information such as cursor movement, that is, as shown in FIG. 5, when the user moves the cursor within the same display area A, for example, by (Δx, Δy), the original cursor If the coordinate value is (X, Y), the new coordinate value (global coordinate) is (X + Δx × k1, Y + Δy × k1) (step 303). Note that k1 is a coefficient set in the image display apparatus.

  Next, the CPU 26 converts this new coordinate value into a local coordinate value on the active PC 11 (step 304) and outputs it to the active PC 11 (step 305). In this case as well, this local coordinate value is not output to other PCs.

  If the instruction input information is mouse button click information, this click information is sent to the active PC 11 (step 108). If the instruction input information is key code information from the keyboard 50, this key information is sent. Code information is sent to the active PC 11 (step 109). Then, the CPU 26 returns to step 301 and takes in the instruction input information from the keyboard 50 and the mouse 51.

  When receiving the new coordinate value (local coordinate), the hook driver 17 of the active PC 11 moves the cursor to the coordinate. However, since the cursor is not displayed on the PC, the cursor is not drawn at this point. At this time, the CPU 26 checks whether or not the cursor is moving in the current active area A, and in the case of movement in the current active area A as shown in FIG. Control the cursor 1 to be drawn. When the cursor 1 moves to the boundary of the current active area and moves beyond the boundary, the user is trying to move across the display area (see FIG. 6).

  When the CPU 26 detects the movement of the cursor across the display area, the active PC is the current active PC 11 and the cursor coordinates are at the boundary of the active area A as shown in FIG. Therefore, the CPU 26 changes the active PC and the active area to the PC 13 and the display area C. Then, the coordinate value of the cursor 1 (the coordinate value of “E”) is sent to the new active PC 13 via the communication control line 33 and set. As a result, the cursor can be moved beyond the display area.

  As described above, in this embodiment, the same effect as in the first embodiment is obtained, and both the movement of the cursor and the coordinate value are managed on the image display device side to perform all the control of the cursor movement. Since only the information is transmitted on the side, the cursor moves more smoothly.

  In this embodiment, the image display device includes a display control unit that performs display control of the cursor. However, the present invention is not limited to this, and the cursor is separate from the image display device and described above. For example, it is possible to provide a display control device to which a set of keyboard and mouse is connected. Also in this case, the same effect as the above-described embodiment can be obtained.

  In this embodiment, it has been described that the display control is performed by the cursor display control device provided inside and outside the image display device (not including the PC). However, the cursor can be displayed on the PC body. It is. In this case, the communication of the coordinate value of the cursor is performed in the same manner as in the embodiment, and among the functions of the hook driver described above, the prohibited cursor display function is canceled and the OS in the PC is standard. It is also possible to draw the cursor as video data by the display function that it has, and this has the effect of eliminating the need for a cursor display control device.

It is a block diagram which shows an example of a structure of the image display control system concerning this invention. It is a block diagram which shows schematic structure of PC shown in FIG. 6 is a flowchart of the first embodiment for explaining the cursor display control operation of the image display apparatus shown in FIG. 1. FIG. 3 is a flowchart of the first embodiment for explaining an operation of controlling the cursor display of the PC shown in FIG. 1. FIG. It is a figure of the 1st example which shows the display state of the cursor in a monitor. Similarly, it is a figure of the 2nd example which shows the display state of the cursor in a monitor. Similarly, it is a figure of the 3rd example which shows the display state of the cursor in a monitor. 6 is a flowchart of Embodiment 2 for explaining an operation of cursor display control of the image display apparatus shown in FIG. 1.

Explanation of symbols

1 Cursor 11-14 Computer (PC)
15 KBD / MS driver 16 Cursor display processing unit 17 Hook driver 20 Image display device 21 Monitor 22 Display control unit 23 PC I / F
24 logic circuit 25 KBD / MS
26 CPU
30 Cable 31 to 34 Communication control line 41 to 44 Video signal line 50 Keyboard 51 Mouse 52, 53 Signal line A to D Display area

Claims (16)

In an image display control method for connecting an image display device having a monitor and a plurality of computers, and controlling display of an image signal from each computer in a display area of the corresponding monitor,
An output step of outputting predetermined instruction input information from one input means to a predetermined computer of the computers as necessary;
A generating step for generating predetermined information based on the instruction input information;
A selection output step in which the predetermined computer selects and outputs the position information of the generated predetermined information;
A display control step for performing display control of the display area of the corresponding monitor based on the position information output from the predetermined computer;
An image display control method comprising:   The image display control method according to claim 1, wherein the selection output step is performed by the image display device or a display control device interposed between the image display device and each of the computers. In an image display control method for connecting an image display device having a monitor and a plurality of computers, and controlling display of an image signal from each computer in a display area of the corresponding monitor,
An output step of outputting predetermined instruction input information from one input means to a predetermined computer of the computers as necessary;
Based on the instruction input information, a generating step for generating predetermined information including position information;
A display control step for performing display control of the display area of the corresponding monitor based on position information of the generated predetermined information;
An image display control method comprising:   4. The image display control method according to claim 1, wherein in the output step, the predetermined instruction input information of the entire computer input from one input unit is output to the corresponding predetermined computer. 5.   The image display control method according to claim 3, wherein the generation step is performed by the image display device or a display control device interposed between the image display device and each computer. In an image display device that has a monitor and displays image signals from a plurality of computers connected to the monitor in a display area of the corresponding monitor,
Input means for inputting predetermined instruction input information;
Display control means for performing display control of the display area of the corresponding monitor based on position information corresponding to instruction input information from the input means;
An image display device comprising:   The image display device further includes information acquisition means for outputting the instruction input information to a predetermined computer and acquiring position information corresponding to the instruction input information from the predetermined computer. The image display device according to claim 6.   The image display device according to claim 6, further comprising position information generation means for generating position information corresponding to the instruction input information. In a display control device that is connected between a monitor and a plurality of computers and controls display of image signals from the computers in the display area of the corresponding monitor,
Input means for inputting predetermined instruction input information;
Display control means for performing display control of the display area of the corresponding monitor based on position information corresponding to instruction input information from the input means;
A display control apparatus comprising:   The display control apparatus further includes information acquisition means for outputting the instruction input information to a predetermined computer and acquiring position information corresponding to the instruction input information from the predetermined computer. The display control apparatus according to claim 9.   The display control apparatus according to claim 9, further comprising a position information generation unit that generates position information corresponding to the instruction input information. In a computer connected to a monitor and outputting an image signal to the monitor,
Predetermined information generating means for generating predetermined information based on instruction input information to be input;
Selection output means for selecting and outputting position information among the predetermined information generated by the predetermined information generation means;
A computer comprising: In an image display control system for connecting a monitor and a plurality of computers and controlling display of an image signal from each computer in a corresponding display area of the monitor,
An image display device according to claim 6 or 7,
A computer according to claim 12,
An image display control system, wherein the image display device performs display control of a display area of the corresponding monitor based on position information output from a predetermined computer among the computers. In an image display control system for connecting a monitor and a plurality of computers and controlling display of an image signal from each computer in a corresponding display area of the monitor,
An image display control system comprising: the image display device according to claim 6, wherein the image display device performs display control of a display area of the corresponding monitor based on the generated position information. In an image display control system for connecting a monitor and a plurality of computers and controlling display of an image signal from each computer in a corresponding display area of the monitor,
A display control device according to claim 9 or 10,
A computer according to claim 12,
And the display control device controls image display on the monitor based on position information output from a predetermined computer of the computers. In an image display control system for connecting a monitor and a plurality of computers and controlling display of an image signal from each computer in a corresponding display area of the monitor,
An image display control system comprising: the display control device according to claim 9, wherein the display control device performs display control of a display area of the corresponding monitor based on the generated position information.

Images