JP2009086082A - Image display apparatus and image display system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display apparatus and an image display system, for displaying a window on a virtual screen of a computer device onto a shared screen of the image display apparatus, wherein the window can be stored within the shared screen by automatic correction when the window will protrude from the shaped screen. <P>SOLUTION: The image display system includes: a computer device 50 which outputs window image data being image data of a window on a virtual screen 55 provided adjacently to a display screen 54; and an image display apparatus 1 which receives the window image data output from the computer device 50 and generates a window from the window image data and displays a shared screen 80 being one region and performs such processing that the window is displayed within the shared screen 80 when it is determined on the basis of information of the position and size of the window on the virtual screen 55 that the window cannot be within the shared screen 80. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an image display device and an image display system capable of displaying a window on a virtual screen of one or a plurality of computer devices on a shared screen in one area.

  2. Description of the Related Art In recent years, conference attendees have started to hold conferences by displaying data prepared for each notebook computer on an image display device such as a projector. In the past, attendees connected notebook computers to projectors and displayed data on the projectors. After the meeting, each attendee or one of the representatives was working on the update by incorporating the data decided and changed at the meeting into the data.

  If the data prepared by attendees can be simultaneously displayed on a shared screen in one area and edited together, the information can be shared and the data can be shared on the spot at the same time. It can be edited and is very convenient.

  Therefore, an image display system 300 as shown in FIG. 13 can be considered. In this image display system 300, a plurality of computer apparatuses PC1 and PC2 are connected to a projector 200, and the projector 200 has windows W1-1 on a virtual screen which are virtual screens of the plurality of computer apparatuses PC1 and PC2. In this system, W1-2, W2-1, and W2-2 are superimposed and displayed as a shared screen. For example, when the user 1 operates the pointing device to move the windows W1-2 and W1-1 displayed on the display screen of the computer apparatus PC1 to the right side and move to the virtual screen, the window W1 -2, W1-1 are displayed on the shared screen.

  If the screen resolution of the virtual screen is lower than the screen resolution of the display screen, as shown in FIG. 14, when the window on the display screen is moved onto the virtual screen, the window will not fit on the shared screen. Therefore, the problem that the part of the window is not displayed on the shared screen occurs.

Patent Document 1 discloses a technique for displaying a part of a screen displayed on a computer device on a projector. However, it is not considered to display a window displayed by a plurality of computer devices as a shared screen with a projector, and the above problem cannot be solved. Patent Document 2 discloses a patent relating to the positional relationship between the main monitor and the sub monitor when the multi monitor is used to project the sub monitor onto the projector. However, the invention described in Patent Document 2 is an invention that makes it difficult to move the window to the sub-monitor, and prevents an erroneous operation in which a window that is not intended by the user is displayed on the projector. Can not.
JP 2004-86277 A JP 2007-101852 A

  The present invention solves the above-described problems, and in an image display device or an image display system that displays a window on a virtual screen of one or more computer devices on a shared screen of the image display device, the window is on the shared screen. Provided are an image display device and an image display system in which a window can be accommodated in a shared screen when trying to protrude.

In order to solve the above problems, the invention according to claim 1 displays a window on a virtual screen provided adjacent to a display screen of one or a plurality of computer devices on a shared screen in one area. In an image display device,
Receiving means for receiving window image data, which is image data of a window on the virtual screen, from the one or more computer devices;
Image placement means for generating a window from the received window image data and placing it on the shared screen;
A correction display unit configured to perform processing for storing and displaying the window in the shared screen when it is determined that the window does not fit in the shared screen based on the position and size information of the window on the virtual screen; It is characterized by that.

  According to a second aspect of the present invention, the correction display means performs a process of reducing the pixels of the window and placing the window in a shared screen.

  According to a third aspect of the present invention, the correction display means performs a process of moving a window and placing the window in a shared screen.

  According to a fourth aspect of the present invention, the correction display means transmits a virtual screen movement signal, which is a movement amount of the virtual screen relative to the display screen, to the computer device of the window image data transmission source that is determined not to fit, and the virtual screen is displayed. It is characterized by moving the display screen and placing the window in the shared screen.

  When the correction display means determines that the existing window on the virtual screen does not fit on the shared screen when the virtual screen is moved relative to the display screen, the invention described in claim 5 The correction display means performs a process of placing the existing window in a shared screen.

  According to a sixth aspect of the present invention, the correction display means performs processing for reducing the pixels of an existing window and placing the existing window in a shared screen.

  According to a seventh aspect of the present invention, the correction display means performs processing for moving an existing window and placing the existing window on a shared screen.

An image display system according to an eighth aspect of the present invention includes one or more computer devices that output window image data that is image data of a window on a virtual screen provided adjacent to the display screen;
The window image data output from the computer device is received, a window is generated from the window image data, displayed on a shared screen as one area, and based on information on the position and size of the window on the virtual screen. And an image display device that performs processing for displaying a window on the shared screen when it is determined that it does not fit on the shared screen;
The computer device and the image display device are configured to communicate with each other.

  According to the first aspect of the present invention, receiving means for receiving window image data, which is image data of a window on a virtual screen, from the one or more computer devices, and generating a window from the received window image data And when it is determined that the window does not fit on the shared screen based on the image placement means to be placed on the shared screen and the position and size information of the window on the virtual screen, Since it has correction display means for processing to be displayed in the window, it is possible to store the window in the shared screen when the window tries to protrude from the shared screen, and a part of the window on the virtual screen is shared. It became possible to solve the problem of not being displayed on the screen.

  According to the second aspect of the invention, the correction display means performs the process of reducing the pixels of the window and placing the window in the shared screen, so that the window on the virtual screen is automatically corrected. Can fit within the shared screen.

  According to the third aspect of the present invention, the correction display means performs the process of moving the window and placing the window in the shared screen, so that the window on the virtual screen is automatically corrected. It became possible to fit within the shared screen.

  According to the fourth aspect of the present invention, the correction display means transmits a virtual screen movement signal, which is a movement amount of the virtual screen relative to the display screen, to the computer device of the window image data transmission source that is determined not to fit, and Since the virtual screen is moved relative to the display screen and the window is placed in the shared screen, it is possible to place the window in the shared screen when the window tries to protrude from the shared screen. Thus, the problem that a part of the window on the virtual screen is not displayed on the shared screen can be solved.

  According to the invention described in claim 5, when the virtual screen is moved with respect to the display screen, the correction display means determines that the existing window on the virtual screen does not fit on the shared screen. The correction display means performs the process of storing the existing window in the shared screen, so that the moved window is stored in the shared screen and the existing window on the virtual screen is also stored on the shared screen. Can be displayed.

  According to the sixth aspect of the invention, the correction display means performs the process of reducing the pixels of the existing window and placing the existing window in the shared screen. Can be automatically corrected to fit within the shared screen.

  According to the seventh aspect of the invention, the correction display means moves the existing window and performs the process of placing the existing window on the shared screen, so that the existing window on the virtual screen is automatically displayed. It was possible to make corrections to fit within the shared screen.

  According to the invention described in claim 8, the image display system includes one or a plurality of computer devices that output window image data that is image data of a window on a virtual screen provided adjacent to the display screen; The window image data output from the computer device is received, a window is generated from the window image data, displayed on a shared screen as one area, and based on information on the position and size of the window on the virtual screen. And an image display device that performs processing for displaying a window on the shared screen when it is determined that the image does not fit on the shared screen, and a communication unit that communicates the computer device with the image display device. Therefore, when a window tries to protrude from the shared screen, it becomes possible to fit the window in the shared screen. , It was possible to solve the problem that some of the windows on the virtual screen is not displayed on the shared screen.

(Outline of image display system)
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a configuration diagram of an image display system using an image display device of the present invention. As shown in FIG. 1, the image display system 100 of the present invention is displayed on virtual screens 55a and 55b, which are virtual screens of computer devices 50a and 50b (represented as PC1 and PC2 in the figure, respectively). The displayed “window” is superimposed on one area and displayed as a shared screen 80, and the user of the computer devices 50a and 50b can operate the “window” displayed on the shared screen 80. System. In FIG. 1, display screens 54a and 54b are screens displayed by image display devices 51a and 51b of computer devices 50a and 50b, respectively. The virtual screens 55a and 55b are virtual screens of the computer devices 50a and 50b, respectively. In FIG. 1, the virtual screens 55a and 55b are virtually provided adjacent to the display screens 54a and 54b. . The virtual screens 55a and 55b are virtually provided at least partially on the display screens 54a and 54b. As will be described later, the cursors P1 and P2 and the “window” are displayed on the display screens 54a and 54b. And the virtual screens 55a and 55b can be moved. In the present embodiment, the virtual screens 55a and 55b are provided on the right side of the display screens 54a and 54b. The “window” includes a “window” in which a “folder” is opened in addition to a “window” of various application software displayed on the display screens 54a and 54b of the computer devices 50a and 50b.

  The image display system 100 includes one or more computer devices 50a and 50b, the image display device 1, and a communication unit 60 that connects the computer devices 50a and 50b and the image display device 1 to communicate data. Has been. In the present embodiment, the image display device 1 is a projector, and projects and displays the shared screen 80 on a screen 75 or the like.

  As shown in FIG. 1, the number of computer devices 50a and 50b that transmit data to the image display device 1 is not limited to two. There is no problem. Hereinafter, an embodiment in which the two computer devices 50 a and 50 b transmit image data to the image display device 1 will be described.

  The computer devices 50a and 50b are all included as long as they display “windows” on the display screens 54a and 54b. For example, Windows (registered trademark), Macintosh (registered trademark), Linux (registered trademark), MS-DOS are included. A so-called personal computer using an OS (operating system) such as (registered trademark), a PDA (abbreviation of personal digital assistant, portable information terminal), a workstation, a large general-purpose computer, and the like can also be included.

  The computer devices 50a and 50b output "window image data" which is image data of "window" on the virtual screens 55a and 55b and "window coordinate data" which is data of the position and size of "window" to the outside. In the present invention, the computer devices 50 a and 50 b output “window image data” and “window coordinate data” to the image display device 1 via the communication means 60. . The “window coordinate data” includes coordinate information of “window” on the virtual screens 55a and 55b (for example, coordinate information of a certain point of “window”), and information on the width and height of the “window”. In this embodiment, the coordinate information of “window” is based on the upper left position of “window”.

  The image display device 1 has a function of receiving “window image data” and “window coordinate data” from the computer devices 50 a and 50 b connected via the communication means 60. The image display device 1 has a function of generating a “window” on the basis of the received “window image data” and “window coordinate data”, and arranging and displaying the window as a shared screen 80 superimposed on one area. ing.

  The computer devices 50a and 50b include a built-in track pad or the like as a pointing device, or a mouse or the like. When the user operates the pointing device, the computer devices 50a and 50b generate pointers P1 and P2 from the “pointing device signal” obtained by the operation and display them on the display screens 54a and 54b. The “pointing device signal” includes “cursor position information data”, “pointing device pressing signal”, and the like. The “cursor position information data” is parameter data represented by X and Y coordinates such as (Xp, Yp), for example, and the positions of the cursors P1 and P2 are set to 2 from these X and Y coordinate data. It comes to express in dimension. When the user moves the pointing device up, down, left, or right, the X coordinate and Y coordinate parameters of the “cursor position information data” are increased / decreased / decreased. The “pointing device pressing signal” is a signal that is output when the user presses the pointing device button, so-called “click” when the button is quickly released, or between pressing and releasing the button. It includes so-called “drag” signals that move the pointing device. Note that the pointing device is not limited to a track pad or a mouse, and may be a pointing device such as a track ball, a pointing stick, or a pen tablet. When the cursors P1 and P2 are operated with the keyboards 52a and 52b of the computer devices 50a and 50b, the keyboards 52a and 52b are also included in the pointing device.

  The computer devices 50 a and 50 b have a function of transmitting “cursor position information data” and “pointing device pressing signal” on the virtual screens 55 a and 55 b to the image display device 1 via the communication unit 60. The computer devices 50 a and 50 b have a function of transmitting a “keyboard signal” that is an operation signal of the keyboards 52 a and 52 b to the image display device 1 via the communication unit 60.

  The image display device 1 has a function of receiving a “pointing device signal” and a “keyboard signal” from the computer devices 50 a and 50 b connected via the communication unit 60. Further, the image display device 1 has a function of displaying the cursors P1 and P2 on the shared screen 80 based on the received “cursor position information data”.

  In the present invention, when the users 1 and 2 operate the pointing device to move the cursors P1 and P2 from the display screens 54a and 54b to the virtual screens 55a and 55b, the cursors P1 and P2 are displayed on the display screens 54a and 54b. At the same time, it is displayed on the shared screen 80. For example, in FIG. 1, when the user 1 operates the pointing device, the cursor P1 displayed on the display screen 54a is moved to the right, and the cursor P1 exceeds the boundary between the display screen 54a and the virtual screen 55a. When the cursor P1 disappears from the right end of the display screen 54a, the cursor P1 appears from the left end of the shared screen 80.

  The users 1 and 2 can perform operations such as moving, clicking, and dragging the “window” on the shared screen 80 by operating the pointing device. For example, when the user 1 of the computer device 50a drags the window W1-1 displayed on the display screen 54a to the right side and the window W1-1 exceeds the boundary between the display screen 54a and the virtual screen 55a. The window W1-1 beyond the boundary appears from the left side of the shared screen 80 and is displayed.

  The image display device 1 identifies any one of the computer devices 50a and 50b transmitting the “window image data” of the “window” pointed to by the cursors P1 and P2 on the shared screen 80, and the identified computer. A function of transmitting a “pointing device signal” and a “keyboard signal” to the devices 50a and 50b is provided.

  The computer devices 50a and 50b have a function of receiving “pointing device signals” and “keyboard signals” of the other computer devices 50a and 50b from the image display device 1 and delivering them to the operating system and application software of the computer devices 50a and 50b. I have.

  Thereby, for example, the image display device 1 transmits a “pointing device signal” and a “keyboard signal” to the computer device 50 b outputting “window image data” of the window W 2-1 indicated by the cursor P 1. Thus, the user 1 can operate the window W2-1 on the virtual screen 55b of the computer device 50b.

  As a result, while viewing the shared screen 80 displayed by the image display device 1, the user 1 operating the computer device 50 a opens the window 2-1 without giving a verbal editing instruction to the user 2. It becomes possible to edit directly.

  When the user 1 operates the pointing device of the computer device 50a and operates the window W2-1 displayed on the shared screen 80, the image display device 1 displays the “pointing” output from the computer device 50a. The "device signal" and the "keyboard signal" are output to the computer device 50b, and the computer device 50b outputs the "pointing device signal" and the "keyboard signal" to the "operating system" and "application" displaying the W2-1 window. They are handed over to “software”, and these “operating system” and “application software” perform processing. For example, when the window W2-1 is a “window” of the word processor, the user 1 operates the pointing device of the computer device 50a to move the cursor P1 to a desired position in the window W2-1, By operating the keyboard 52a of the computer device 50a, characters can be input to the window W2-1. As described above, the computer device 50b acquires the “pointing device signal” and the “keyboard signal” output from the computer device 50a via the image device 1 and delivers them to the word processor software. The word processor software performs various processes such as character input based on the “pointing device signal” and the “keyboard signal”. “Application software” includes not only word processor software but also business software such as spreadsheet software, mail software, and presentation software, as well as image processing software. Users 1 and 2 are displayed on the shared screen 80. You can collaborate by operating “windows” of various software.

  Next, the communication means 60 will be described. For example, as shown in FIG. 1, the communication means 60 includes a hub 61 to which a plurality of communication lines are connected, a communication line 62 to connect the hub 61 and a plurality of computer devices 50a and 50b, a hub 61 and an image display device. 1 and a communication line 63 for connecting 1. The communication line 63 is connected to the network connection unit 10 of the image display apparatus 1 shown in FIG. The communication line 62 is connected to the network connection unit 113 of the computer devices 50a and 50b shown in FIG.

  As an interface of the network connection unit 10 of the image display device 1 and the network connection unit 113 of the computer devices 50a and 50b, an abbreviation of LAN (Local Area Network) or USB (Universal Serial Bus), USB 1.0, USB 1.1, USB 1394), IEEE 1394, RS232, RS422, and other communication interfaces can be included, and the communication line 62 and the communication line 63 are communication lines corresponding to these interfaces.

  Alternatively, the communication unit 60 may be a wireless unit, and the interface in this case may include a so-called wireless LAN, Bluetooth, or other wireless interface defined in IEEE802. In this case, the network connection unit 113 of the computer devices 50a and 50b and the network connection unit 10 of the image display device 1 use the wireless interface.

  Further, the communication means 60 shown in FIG. 1 can include a so-called intranet 65 and the Internet 66 as shown in FIG. 3, and a computer device 50a connected to a network such as the intranet 65 and the Internet 66, 50b may be an embodiment that transmits "window image data", "window coordinate data", "pointing device signal", and "keyboard signal" to the image display device 1. In FIG. 3, 65 is an intranet, 66 is the Internet, 67 is a hub, 68 is a switch, 69 is a router, 70 is a server, 71 is a firewall, and 72 is a wireless LAN access point.

(Description of image display device configuration)
The configuration of the image display device 1 will be described below. The image display apparatus 1 mainly includes a network connection unit 10, a CPU 12, a RAM 13, a ROM 14, a storage unit 15, a control panel 36, an infrared control unit 37, a lamp driving circuit 21, an image processing circuit 28, a focus adjustment mechanism 26, and the like. These are connected to each other by a bus 45.

  The network connection unit 10 is connected to the communication line 63 of the communication unit 60. The network connection unit 10 serves as a receiving unit 10a that receives “window image data”, “window coordinate data”, “pointing device signal”, and “keyboard signal” transmitted from the computer devices 50a and 50b. Yes. The network connection unit 10 also serves as a transmission means 10b for transmitting various data to the outside. The computer devices 50a and 50b are connected to a "pointing device signal", a "keyboard signal", a "virtual screen movement signal" described later, and the like. The data is sent.

  A CPU (abbreviation of central processing unit) 12 performs various calculations and processes in cooperation with a RAM (abbreviation of random access memory) 13 and a ROM (abbreviation of read only memory) 14.

  The RAM 13 temporarily stores data processed by the CPU 12. The RAM 13 serves as a VRAM (Video RAM) that temporarily stores “shared screen image data” to be displayed on the display screen 80. Note that a VRAM that temporarily stores image data to be displayed on the display screen 80 may be provided separately from the RAM 13 and connected to the bus 45.

  The ROM 14 stores various programs and parameters for controlling the image display apparatus 1. The application storage unit 14a stores application software for controlling the image display device 1 of the present invention. The application software is processed by the CPU 12 to realize various functions. An image storage unit 14b and a correction display unit 14c are stored in the application storage unit 14a of the ROM 14.

  The image arranging unit 14b generates a “window” from the “window image data” and the “window coordinate data” received by the receiving unit 10a, arranges it on one area, and displays it on the shared screen 80. Shared screen image data "is generated and output to the RAM 13 which is a VRAM.

  The correction display means 14c recognizes the position and size of the “window” on the virtual screens 55a and 55b from the “window coordinate data” received by the receiving means 10a, and whether or not the “window” fits on the shared screen 80. If it is determined that it does not fit, the “window” is displayed in the shared screen 80 for display. In the present embodiment, whether the “window” fits on the shared screen 80 based on the coordinate information of a certain point of the “window” or the “window coordinate data” including the width and height information of the “window”. The correction display means 14 changes the information of the coordinates of the four corners of the “window” to “window coordinate data”, which is data of the coordinates of the four corners of the “window”. Based on this, it may be determined whether or not the “window” fits in the shared screen 80.

  The storage unit 15 includes a nonvolatile memory, a hard disk, and the like, and stores various settings of the image display device 1. The “window image data” and “window coordinate data” received by the receiving unit 10 a may be paged and stored in the storage unit 15.

  The image display device 1 condenses the light source 22 such as a lamp that emits light by the electric power supplied from the lamp driving circuit 21 and the diffused light emitted by the light source 22, and supplies more uniform illumination light to the LCD 24 (Liquid Crystal Display). The illumination optical system 23 that irradiates the liquid crystal display element), the LCD 24 that inputs illumination light and expresses gradation in each pixel to generate an image, and projects the image generated by the LCD 24 onto a screen 75 or the like. And an imaging optical system 25. In place of the LCD 24, a DMD (Digital Micromirror Device) may be used. The imaging optical system 25 is composed of a large number of lenses, and is automatically focused by a focus adjustment mechanism 26 so that illumination light transmitted through the LCD 24 forms an image on a screen 75 or the like.

  The image display device 1 includes an image signal input unit 41 such as a VGA terminal (Video Graphics Array), a DVI-D terminal, an image signal switching circuit 42, which acquires “image signals” from the computer devices 50 a and 50 b. Although the image signal input circuit 43 is provided, in the present invention, the “window image data” transmitted from the computer devices 50 a and 50 b is received by the receiving means 10 a of the network connection unit 10. In addition, the image signal switching circuit 42 and the image signal input circuit 43 are not necessarily required for the image display device 1 of the present invention.

  The image processing circuit 28 obtains “shared screen image data” generated by the image placement unit 14b and stored in the RAM 13 which is a VRAM via the bus 45, and performs sharpness correction, gamma correction, Image processing such as contrast correction, white balance correction, and keystone correction is performed and output to the LCD drive circuit 30. The LCD drive circuit 30 outputs a signal electrode drive signal applied to the signal electrode of the LCD 24 and a scan electrode drive signal applied to the scan electrode based on the “shared screen image data” output from the image processing circuit 28. The LCD 24 generates an image based on the signal electrode drive signal and the scan electrode drive signal acquired from the LCD drive circuit 30.

  The control panel 36 is for changing various settings of the image processing apparatus 1 and operating the image display apparatus 1. A setting change signal or an operation signal generated by a user operation is sent via the bus 45. It is handed over to various programs. The infrared control unit 37 acquires change signals and operation signals for various settings made by the user using a remote controller (not shown) via the infrared light receiver 38, and the change signals and operation signals are acquired by the bus 45. It is handed over to various programs via.

(Description of configuration of computer device)
FIG. 4 is a block diagram of the computer device 50, and the computer device 50 will be described. The computer device 50 mainly includes a CPU 101, a memory 102, a bus controller 103, a video subsystem 104, an image display device 105, a USB bus controller 106, a USB connector 107, a hard disk 108, a floppy (registered trademark) disk drive 109, and a CDROM drive. 110, a keyboard 111, a pointing device 112, and a network connection unit 113.

  The CPU 101, the memory 102, and the video subsystem 104 are connected to each other via a high-speed bus 121. The CPU 101 performs various calculations and processing in cooperation with the memory 102. The memory 102 includes a ROM and a RAM. A BIOS (Basic Input / Output System) is stored in the ROM. The RAM temporarily stores various programs and data loaded from the hard disk 108, and temporarily stores the processing results of the CPU 101.

  The video subsystem 104 generates “display image data”, which is image data displayed on the display screens 54 a and 54 b, and outputs it to the image display device 105. The video subsystem 104 includes a graphics controller and a VRAM. The graphics controller generates “display image data” which is data of a set of pixels in accordance with an instruction from the CPU 101 and outputs the data to the VRAM. The VRAM temporarily stores “display image data” generated by the graphics controller. The “display image data” stored in the VRAM is output to the image display device 105.

  In addition, the video subsystem 104 generates “window image data” that is image data of “window” on the virtual screens 55 a and 55 b, and transmits it from the network connection unit 113 to the image display device 1 via the communication unit 60. It has a function to output. The graphics controller generates “window image data” that is data of a set of pixels in accordance with an instruction from the CPU 101 and outputs the data to the VRAM. The VRAM temporarily stores “window image data” generated by the graphics controller. The “window image data” stored in the VRAM is transmitted from the network connection unit 113 to the image display device 1 via the communication unit 60.

  Note that “display screen data” and “window image data” may be stored in the memory 102 instead of the VRAM.

  The image display device 105 includes an LCD, a CRT (Cathode Ray Tube), or the like. The image display device 105 is connected to the video subsystem 104 so that “display image data” generated by the video subsystem 104 is displayed. In the present invention, only the display screens 54a and 54b are displayed on the image display device 105 (51a and 51b), and the virtual screens 55a and 55b are not displayed.

  The bus controller 103 connects the high-speed bus 121 and the low-speed bus 122, and controls data flowing between the high-speed bus 121 and the low-speed bus 122.

  The USB bus controller 106, the hard disk 108, the floppy (registered trademark) disk drive 109, the CDROM drive 110, the keyboard 111, the pointing device 112, and the network connection unit 113 are connected to each other via a low-speed bus 122.

  The USB connector 107 is connected to a USB terminal. The USB bus controller 106 controls data input to the USB connector 107 and outputs the data to the low speed bus 122.

  The hard disk 108 stores the operating system 108a of the computer device 50 and application software 108b, and stores various data 108c. The application software 108b includes driver software for connecting the image display device 1 and the computer devices 50a and 50b and a program for generating the virtual screens 55a and 55b.

  The floppy (registered trademark) disk drive 109 is a device that reads data stored in a floppy (registered trademark) disk and writes data to the floppy (registered trademark) disk. The CDROM drive 110 is a device that reads data stored in a CDROM. These floppy (registered trademark) disk drive 109 and CDROM drive 110 realize driver software for connecting the image display device 1 and the computer device 50 stored in the floppy (registered trademark) disk or CD ROM, and the present invention. Application software is read and installed on the hard disk 108. The network connection unit 113 may receive the driver software or application software and install it on the hard disk 108.

  The keyboard 111 (52a, 52b) is a device for inputting characters and inputting commands. An input signal of the keyboard 111 is delivered to the operating system and application software via the low-speed bus 122. The pointing device 112 is a device that generates a “pointing device signal” including a “cursor position information signal” and a “pointing device pressing signal” of the cursors P1 and P2 on the display screens 54a and 54b and the virtual screens 55a and 55b. . The “pointing device signal” is delivered to the operating system and application software via the low-speed bus 122.

  The network connection unit 113 is connected to the communication unit 60 and communicates with the image display apparatus 1. The network connection unit 113 transmits “window image data”, “window coordinate data”, “pointing device signal”, and “keyboard signal” to the image display device 1 via the communication means 60. Further, the network connection unit 113 receives from the image display device 1 the “pointing device signal” and the “keyboard signal” transmitted from the other computer device 50 to the image display device 1 via the communication unit 60. ing. In addition, the network connection unit 113 receives a “virtual screen movement signal” to be described later from the image display device 1 via the communication unit 60.

(First embodiment)
FIG. 5 shows an explanatory diagram of the first embodiment, FIG. 6 shows a flowchart of the first embodiment, and the first embodiment will be described below. As shown in FIG. 5, according to the first embodiment, the correction display unit 14 c displays “window” on the shared screen 80 based on the position / size information of “window” on the virtual screens 55 a and 55 b. In this embodiment, the pixels of the “window” are reduced and stored in the shared screen 80 when it is determined that they do not fit.

  When the user moves the “window” from the display screen 54 to the virtual screen 55 and the flow of the first embodiment is started, the image display apparatus 1 starts from “Start” in FIG. The process proceeds to “Receive”.

  In the process of S11 “receive data from computer device”, the receiving means 10a of the image display device 1 receives “window image data” and “window coordinate data” transmitted by the computer devices 50a and 50b. These “window image data” and “window coordinate data” are stored in the RAM 13. When the process of S11 ends, the process proceeds to S12 to determine whether the window fits within the shared screen.

  In the determination of S12 “whether the window fits within the shared screen”, the correction display means 14c determines the position / size of the “window” on the virtual screens 55a and 55b based on the “window coordinate data” received in the process of S11. It is determined whether or not the “window” fits within the shared screen 80. If the correction display means 14c determines that the “window” does not fit within the shared screen 80, the process proceeds to S13 “window reduction”. On the other hand, when the correction display means 14c determines that “window” fits within the shared screen 80, the process proceeds to S14 “whether determination is complete for all windows”.

  In the process of S13 “reduction of window”, the correction display means 14c calculates a “reduction amount” for reducing the size of the “window” so as to be within the shared screen 80, and receives it in the process of S11. The pixel of the “window image data” stored in is reduced based on the calculated “reduction amount” to generate “reduced window image data” and stored in the RAM 13. Note that methods for reducing pixels include a bicubic method, a bilinear method, and a near-reel neighbor method, but are not limited to these methods. When the process of S13 is completed, the process proceeds to S14.

  In the determination of S14 “whether determination is complete for all windows”, the correction display means 14c determines whether the determination of S12 is complete for all “window image data” received in the processing of S11. When the correction display means 14c determines that the determination of S12 is not completed for all the “window image data”, the process proceeds to the determination of S12. On the other hand, if the correction display means 14c determines that the determination in S12 is completed for all “window image data”, the process proceeds to S15 “display all windows on shared screen”.

  In the process of S15 “display all windows on shared screen”, the image arrangement unit 14b generates “window” from “window image data”, “reduced window image data”, and “window coordinate data” stored in the RAM 13. Then, “display image data” that is arranged so as to overlap with one area and is displayed on the shared screen 80 is generated. This “display image data” is stored in the RAM 13. The “display image data” stored in the RAM 13 is output to the image processing circuit 28 and displayed on the screen 75. When the process of S15 is completed, the process proceeds to the determination of S16 “End of image processing apparatus”.

  When the user presses the “image display device end button” on the control panel 36 or the remote controller in the determination of S16 “end image processing device”, the flow of the first embodiment ends. On the other hand, if the user does not press the “image display device end button” on the control panel 36 or the remote controller, the process returns to S11.

(Second Embodiment)
FIG. 7 shows an explanatory diagram of the second embodiment, FIG. 8 shows a flowchart of the second embodiment, and the second embodiment will be described below. As shown in FIG. 7, in the second embodiment, the correction display unit 14 c causes the “window” to be displayed on the shared screen 80 based on the position / size information of the “window” on the virtual screens 55 a and 55 b. In this embodiment, when it is determined that it does not fit, the “window” is translated and placed in the shared screen 80.

  When the user moves the “window” from the display screens 54a and 54b to the virtual screens 55a and 55b and the flow of the second embodiment starts, the image display device 1 starts from “start” in FIG. The process proceeds to “Receive data from device”.

  In the process of S21 “Receive Data from Computer Device”, the receiving means 10a of the image display device 1 receives the “window image data” and “window coordinate data” transmitted from the computer devices 50a and 50b via the communication means 60. Receive. These “window image data” and “window coordinate data” are stored in the RAM 13. When the process of S11 ends, the process proceeds to S22 “Will the window fit within the shared screen”?

  In the determination of S22 “whether the window fits within the shared screen”, the correction display means 14c determines the position / size of the “window” on the virtual screen 55 based on the “window coordinate data” received in the process of S21. Recognize and determine whether the “window” fits within the shared screen 80. If the correction display means 14c determines that the “window” does not fit within the shared screen 80, the process proceeds to S23 “translate window”. On the other hand, when the correction display means 14c determines that “window” fits within the shared screen 80, the process proceeds to S24 “whether determination has been completed for all windows”.

  In the process of S23 “translate window”, the correction display means 14c calculates the “movement direction” and “movement amount” of “window” so as to be within the shared screen 80, and receives them in the process of S21. The parameters of the “window coordinate data” stored in the RAM 13 are changed based on the calculated “movement direction” and “movement amount”, and the “window” is set to the shared screen 80 so as to be within the shared screen 80. The process of moving in parallel is performed. The “window coordinate data” whose parameters have been changed is stored in the RAM 13. When the process of S23 is completed, the process proceeds to S24, "Determination of all windows is completed".

  In determining S24 “whether the determination has been completed for all windows”, the correction display unit 14c determines whether the determination in S22 has been completed for all the “window image data” received in the processing of S21. When the correction display unit 14c determines that the determination of S22 is not completed for all “window image data”, the process proceeds to determination of S22. On the other hand, if the correction display means 14c determines that the determination in S22 is completed for all the “window image data”, the process proceeds to S25 “display all windows on shared screen”.

  In the process of S25 “display all windows on shared screen”, the image arrangement unit 14b generates “window” from “window image data”, “reduced window image data”, and “window coordinate data” stored in the RAM 13. Then, “display image data” that is arranged so as to overlap with one area and is displayed on the shared screen 80 is generated. This “display image data” is stored in the RAM 13. The “display image data” stored in the RAM 13 is output to the image processing circuit 28 and displayed on the screen 75. When the process of S25 is completed, the process proceeds to S26 “Image processing apparatus end”.

  When the user presses the “image display device end button” on the control panel 36 or the remote controller in the determination of “end image processing device” in S26, the flow of the second embodiment ends. On the other hand, if the user does not press the “image display device end button” on the control panel 36 or the remote controller, the process returns to S21.

(Third embodiment)
FIG. 9 is an explanatory diagram of the third embodiment, FIG. 10 is a flowchart of the third embodiment, and the third embodiment will be described below. As shown in FIG. 9, in the third embodiment, the correction display unit 14c is configured to display the window W2 based on the position / size information of the window W2 moved from the display screen 54 to the virtual screen 55 by the user. "Window image transmission data" that is determined not to fit in the shared screen 80, the "virtual screen movement signal" that is the amount of movement of the virtual screen 55 relative to the display screen 54 The virtual screen 55 of the computer device 50 is translated (state (2) in FIG. 9), the window W2 is stored in the shared screen 80, and the existing window on the moved virtual screen 55 is displayed. When the correction display means 14c determines that W1 does not fit on the shared screen 80, the pixels of the existing window W1 are reduced (state (3) in FIG. 9), It is an embodiment to keep the window W1 on the shared screen 80.

  When the user moves the window W2 from the display screen 54 to the virtual screen 55 by operating the pointing device 112 and the flow of the third embodiment starts, the image display device 1 displays “start” in FIG. To S31 “Receive data from computer device”.

  In the process of S31 “Receive Data from Computer Device”, the receiving means 10a of the image display device 1 transmits the “window image data” and “window coordinate data” of the windows W1 and W2 transmitted by the computer device 50 to the communication means 60. Receive via. These “window image data” and “window coordinate data” are stored in the RAM 13. When the processing of S31 is completed, the process proceeds to S32 to determine whether the window fits within the shared screen.

  In the determination of S32 “whether the window fits in the shared screen”, the correction display means 14c determines the windows W1, W2 on the virtual screen 55 based on the “window coordinate data” of the windows W1, W2 received in the process of S31. Is recognized, and it is determined whether or not the existing window W1 and the moved window W2 fit within the shared screen 80. When the correction display unit 14c determines that the window W1 or the window W2 does not fit within the shared screen 80, the process proceeds to S33 “Whether the window is operated by the user”. On the other hand, if the correction display unit 14c determines that the window W2 is within the shared screen 80, the process proceeds to S37, "Whether determination is complete for all windows".

  In the determination of S33 “whether it is a window operated by the user”, the correction display unit 14c determines that the “window” determined not to be included in the shared screen 80 in the determination of S32 is the “window” operated by the user. It is determined whether or not W2. When the correction display means 14c determines that the “window” determined not to fit within the shared screen 80 in the determination in S32 is the window W2, S34 “Sends the movement amount of the virtual screen to the computer apparatus”. Proceed to processing. On the other hand, when the correction display means 14c determines that the “window” determined not to be included in the shared screen 80 in the determination of S32 is the existing window W1, S35 “existing window is in the shared screen” Proceed to the judgment of "Is it fit in?"

  In the process of S34 “Send virtual screen movement amount to computer device”, the correction display means 14c is “virtual amount” which is the movement amount of the virtual screen 55 with respect to the display screen 54, which is necessary to put the window W2 on the shared screen 80. “Screen movement amount” is calculated. Then, the correction display unit 14c generates a “virtual screen movement signal” from the calculated “virtual screen movement amount”, and transmits the “virtual screen movement signal” to the “window image data” of the window W2. To device 50. The computer apparatus 50 that has received the “virtual screen movement signal” performs a process of translating the virtual screen 55 by the “virtual screen movement amount”. The computer device 50 transmits “window coordinate data” of the window W1 and the window W2 on the virtual screen 55 after the movement of the virtual screen 55 to the image display device 1. When the process of S34 is completed, the process proceeds to S35 to determine whether an existing window fits in the shared screen.

  In the determination of S35 “whether the existing window fits in the shared screen”, the correction display unit 14c determines whether the existing window W1 fits in the shared screen 80 or not. In the process of S34, when a “virtual screen movement signal” is transmitted to the computer apparatus 50, as shown in (2) of FIG. 9, the window W1 and the window W2 on the moved virtual screen 55 are displayed. In the state where the shared screen 80 is translated, the correction display unit 14c determines whether or not the existing window W1 is within the shared screen 80. If the correction display means 14c determines that the existing window W1 does not fit within the shared screen 80, the process proceeds to S36 "Reduction of existing window". On the other hand, if it is determined that the correction display means 14c fits within the shared screen 80, the process proceeds to S37 “whether the determination has been completed for all windows”.

  In the process of S36 “Reduction of existing window”, the correction display means 14c calculates a “reduction amount” for reducing the size of the existing window W1 so as to be within the shared screen 80, and receives it in the process of S31. Then, the “window image data” pixel of the existing window W1 stored in the RAM 13 is reduced based on the calculated “reduction amount” to generate “reduced window image data”. The “reduced window image data” subjected to the reduction process is stored in the RAM 13. As described above, the reason for reducing the existing window W1 in the process of S36 is that the user is more interested in the window W2 that is moved on the virtual screen 55 by the user operating the pointing device. Because it is. When the process of S36 is completed, the process proceeds to S37 “Whether determination has been completed for all windows”.

  In the determination of S37 “whether the determination has been completed for all windows”, the correction display unit 14c determines whether the determination of S32 has been completed for all the “window image data” received in the processing of S31. When the correction display unit 14c determines that the determination of S32 is not completed for all the “window image data”, the process returns to the determination of S32. On the other hand, when the correction display means 14c determines that the determination of S32 is completed for all the “window image data”, the process proceeds to S38 “display all windows on shared screen”.

  In the process of S38 “display all windows on shared screen”, the image arrangement unit 14b generates “window” from “window image data”, “reduced window image data”, and “window coordinate data” stored in the RAM 13. Then, the “display image data” displayed on the shared screen 80 is generated by being arranged so as to overlap one area. This “display screen data” is stored in the RAM 13. The “display image data” stored in the RAM 13 is output to the image processing circuit 28 and displayed on the screen 75. When the process of S38 is completed, the process proceeds to S39 “Image processing apparatus end”.

  When the user presses the “image display device end button” on the control panel 36 or the remote controller in the determination of “end image processing device” in S39, the flow of the third embodiment ends. On the other hand, if the user does not press the “image display device end button” on the control panel 36 or the remote controller, the process returns to S31.

(Fourth embodiment)
FIG. 11 is an explanatory diagram of the fourth embodiment, FIG. 12 is a flowchart of the fourth embodiment, and the third embodiment will be described below. As shown in FIG. 11, in the fourth embodiment, the correction display unit 14c is configured to display the window W2 based on the position / size information of the window W2 moved from the display screen 54 to the virtual screen 55 by the user. "Window image transmission data" that is determined not to fit in the shared screen 80, the "virtual screen movement signal" that is the amount of movement of the virtual screen 55 relative to the display screen 54 The virtual screen 55 of the computer device 50 is translated (state (2) in FIG. 11), the window W2 is stored in the shared screen 80, and the existing window on the moved virtual screen 55 is displayed. When the correction display means 14c determines that W1 does not fit on the shared screen 80, the existing window W1 is translated (state (3) in FIG. 11). ), It is an embodiment to keep the existing window W1 on the shared screen 80.

  When the user moves the window W2 from the display screen 54 to the virtual screen 55 by operating the pointing device 112 and the flow of the fourth embodiment starts, the image display device 1 displays “start” in FIG. To S41 “Receive data from computer device”.

  In the process of S41 “Receive Data from Computer Device”, the receiving means 10a of the image display device 1 transmits the “window image data” and “window coordinate data” of the windows W1 and W2 transmitted by the computer device 50 to the communication means 60. Receive via. These “window image data” and “window coordinate data” are stored in the RAM 13. When the process of S41 is completed, the process proceeds to S42 “whether the window fits within the shared screen”.

  In determining whether the window fits within the shared screen in S42, the correction display means 14c determines the windows W1, W2 on the virtual screen 55 based on the “window coordinate data” of the windows W1, W2 received in the process of S41. Is recognized, and it is determined whether or not the existing window W1 and the moved window W2 fit within the shared screen 80. When the correction display unit 14c determines that the window W1 or the window W2 does not fit within the shared screen 80, the process proceeds to S43 “whether the window is operated by the user”. On the other hand, when the correction display means 14c determines that the window W2 is within the shared screen 80, the process proceeds to S47 "whether determination has been completed for all windows".

  In the determination of S43 “whether it is a window operated by the user”, the correction display means 14c is a window in which the “window” determined by the correction display means 14c that does not fit in the shared screen 80 in the determination of S42 is the “window” operated by the user It is determined whether or not W2. When the correction display means 14c determines that the “window” determined not to fit within the shared screen 80 in the determination in S42 is the window W2, S44 “Sends the amount of movement of the virtual screen to the computer device”. Proceed to processing. On the other hand, if the correction display means 14c determines that the “window” determined not to fit within the shared screen 80 in the determination of S42 is the existing window W1, S45 “the existing window is in the shared screen. Proceed to determine whether it will fit.

  In the process of S44 “Transmit virtual screen movement amount to computer device”, the correction display means 14c is “virtual amount” which is the movement amount of the virtual screen 55 with respect to the display screen 54, which is necessary to put the window W2 on the shared screen 80. “Screen movement amount” is calculated. Then, the correction display unit 14c generates a “virtual screen movement signal” from the calculated “virtual screen movement amount”, and transmits the “virtual screen movement signal” to the “window image data” of the window W2. To device 50. The computer apparatus 50 that has received the “virtual screen movement signal” performs a process of translating the virtual screen 55 by the “virtual screen movement amount”. The computer device 50 transmits “window coordinate data” of the window W1 and the window W2 on the virtual screen 55 after the movement of the virtual screen 55 to the image display device 1. When the processing of S44 is completed, the process proceeds to S45 “whether an existing window fits in the shared screen”.

  In S45 “determining whether an existing window fits in the shared screen”, the correction display unit 14c determines whether the existing window W1 fits in the shared screen 80 or not. In the process of S44, when a “virtual screen movement signal” is transmitted to the computer apparatus 50, as shown in (2) of FIG. 11, the window W1 and the window W2 on the moved virtual screen 55 are displayed. In the state where the shared screen 80 is translated, the correction display unit 14c determines whether or not the existing window W1 can be accommodated in the shared screen 80. If the correction display means 14c determines that the existing window W1 does not fit within the shared screen 80, the process proceeds to S46 "Translate existing window". On the other hand, when the correction display unit 14c determines that the correction display unit 14c fits within the shared screen 80, the process proceeds to S47, "Determination of all windows has been completed".

  In the process of S46 “translate existing window”, the correction display means 14c calculates the “movement direction” and “movement amount” of the existing window W1 so as to be within the shared screen 80, and is stored in the RAM 13. A process of changing the parameter of the “window coordinate data” of the existing window W1 based on the calculated “movement direction” and “movement amount” and moving the existing window W1 in the shared screen 80 in parallel. Do. The “window coordinate data” whose parameters have been changed is stored in the RAM 13. When the process of S46 is completed, the process proceeds to S47, "Determination of all windows is completed".

  In the determination of S47 “whether the determination has been completed for all windows”, the correction display unit 14c determines whether the determination of S42 has been completed for all the “window image data” received in the processing of S41. When the correction display unit 14c determines that the determination of S42 is not completed for all the “window image data”, the process returns to the determination of S42. On the other hand, when the correction display means 14c determines that the determination of S42 is completed for all the “window image data”, the process proceeds to S48 “display all windows on shared screen”.

  In the process of S48 “display all windows on shared screen”, the image arrangement unit 14b generates “window” from “window image data”, “reduced window image data”, and “window coordinate data” stored in the RAM 13. Then, the “display image data” displayed on the shared screen 80 is generated by being arranged so as to overlap one area. This “display screen data” is stored in the RAM 13. The “display image data” stored in the RAM 13 is output to the image processing circuit 28 and displayed on the screen 75. When the process of S48 is completed, the process proceeds to S49 “End of image processing apparatus”.

  When the user depresses the “image display device end button” on the control panel 36 or the remote controller in the determination of “end image processing device” in S49, the flow of the fourth embodiment ends. On the other hand, if the user does not press the “image display device end button” on the control panel 36 or the remote controller, the process returns to S41.

  In addition, although this invention was demonstrated about the example using a projector as an example of the image display apparatus 1, the image display apparatus of this invention is not limited to a projector, Other cathode ray tubes (a cathode ray tube, CRT, a liquid crystal display, organic EL) Needless to say, the present invention can also be applied to image display devices such as a display, a plasma display, and a rear projection display.

  Although the present invention has been described above in connection with the most practical and preferred embodiments at the present time, the present invention is not limited to the embodiments disclosed herein. The image display device and the image display system with such changes are also included in the technical scope without departing from the spirit or concept of the invention that can be read from the claims and the entire specification. Must be understood as.

It is explanatory drawing which shows the outline | summary of a system. It is a block diagram of an image display apparatus. It is explanatory drawing which shows a network. It is a block diagram of a computer apparatus. It is explanatory drawing which shows 1st Embodiment. It is a flowchart of a 1st embodiment. It is explanatory drawing which shows 2nd Embodiment. It is a flowchart of a 2nd embodiment. It is explanatory drawing which shows 3rd Embodiment. It is a flowchart of a 3rd embodiment. It is explanatory drawing which shows 4th Embodiment. It is a flowchart of 4th Embodiment. It is explanatory drawing of the conventional image display system. It is explanatory drawing which showed the problem of the conventional image display system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Image display apparatus 10 Network connection part 10a Receiving means 10b Transmitting means 12 CPU
13 RAM
14 ROM
14a Application storage unit 14b Image arrangement unit 14c Screen resolution arbitration unit 15 Storage unit 21 Lamp drive circuit 22 Light source 23 Illumination optical system 24 LCD
25 Image-forming optical system 26 Focus adjustment mechanism 28 Image processing circuit 30 LCD drive circuit 36 Control panel 38 Infrared light receiving unit 37 Infrared control unit 41 Image signal connection unit 42 Image signal switching circuit 43 Image signal input circuit 45 Bus 50a Computer device (PC1) )
50b Computer device (PC2)
51a Image display device (computer device 50a)
51b Image display device (computer device 50b)
52a Keyboard (Computer device 50a)
52b Keyboard (Computer device 50b)
54a Display screen (computer device 50a)
54b Display screen (computer device 50b)
55a Virtual screen (computer device 50a)
55b Virtual screen (computer device 50b)
60 Communication Means 61 Hub 62 Communication Line 63 Communication Line 65 Intranet 66 Internet 67 Hub 68 Switch 69 Router 70 Server 71 Firewall 72 Wireless LAN Access Point 75 Screen 80 Shared Screen 100 Image Display System 101 CPU
DESCRIPTION OF SYMBOLS 102 Memory 103 Bus controller 104 Video subsystem 105 Image display device 106 USB bus controller 107 USB connector 108 Hard disk 108a Operating system 108b Application software 109c Various data 109 Floppy (registered trademark) disk drive 110 CDROM drive 111 Keyboard 112 Pointing device 113 Network connection Part 121 High-speed bus 122 Low-speed bus 200 Conventional projector 300 Conventional image display system P1 Cursor (computer device 50a)
P2 cursor (computer device 50b)
W1 Existing window (third embodiment, fourth embodiment)
W2 Moved window (third embodiment, fourth embodiment)

Claims (8)

In an image display device for displaying a window on a virtual screen provided adjacent to a display screen of one or a plurality of computer devices on a shared screen of one region,
Receiving means for receiving window image data, which is image data of a window on the virtual screen, from the one or more computer devices;
Image placement means for generating a window from the received window image data and placing it on the shared screen;
A correction display unit configured to perform processing for storing and displaying the window in the shared screen when it is determined that the window does not fit in the shared screen based on the position and size information of the window on the virtual screen; An image display device characterized by that.   The image display apparatus according to claim 1, wherein the correction display unit performs a process of reducing the pixels of the window and placing the window in a shared screen.   The image display apparatus according to claim 1, wherein the correction display unit performs a process of moving the window and placing the window in a shared screen.   The correction display means transmits a virtual screen movement signal, which is a movement amount of the virtual screen with respect to the display screen, to the computer device that has transmitted the window image data determined not to fit, and moves the virtual screen relative to the display screen. The image display apparatus according to claim 1, wherein a process of placing the window in a shared screen is performed.   When the correction display means determines that the existing window on the virtual screen does not fit on the shared screen when the virtual screen is moved relative to the display screen, the correction display means 5. The image processing apparatus according to claim 4, wherein the image processing apparatus stores the image in a shared screen.   6. The image display device according to claim 5, wherein the correction display means performs a process of reducing the pixels of the existing window and placing the existing window in the shared screen.   The image display apparatus according to claim 5, wherein the correction display unit performs a process of moving an existing window and placing the existing window on a shared screen. One or a plurality of computer devices for outputting window image data which is image data of a window on a virtual screen provided adjacent to the display screen;
The window image data output from the computer device is received, a window is generated from the window image data, displayed on a shared screen as one area, and based on information on the position and size of the window on the virtual screen. And an image display device that performs processing for displaying a window on the shared screen when it is determined that it does not fit on the shared screen;
An image display system comprising communication means for communicating between the computer device and the image display device.

Images