JPH0635434A - Multiscreen control system - Google Patents

Abstract

PURPOSE:To provide the multiscreen control systems which does not vary in coordinate input resolution among respective display screens even if the number of the screens increases. CONSTITUTION:Plural image display systems 14 and 14 composed of display devices 1 and 11 which display images on screens by receiving video signals, data display controllers 2 and 12 which output the video signals for displaying images and cursors on the display screens of the display devices 1 and 11, and coordinate input devices 3 and 13 which are connected to the data display controllers 2 and 12 and indicate the display positions of the cursors displayed on the display screens of the display devices 1 and 11 are combined; and a central controller 5 connected to the data display controllers 2 and 12 of the image display systems 4 and 14 and controls the data display controllers 2 and 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-screen control system, and more particularly to a multi-screen control system suitable for controlling a cursor displayed on a multi-screen.

[0002]

2. Description of the Related Art A conventional cursor control method in a multi-screen control system is, for example, Japanese Patent Laid-Open No. 3-43788.
There is a method described in the issue.

In this cursor control method, one coordinate input device controls the cursor position in a multi-screen, and the cursor control is performed in the following procedure.

(1) The central control device calculates the effective coordinates of each display device, and outputs the effective coordinate data of the display device managed by the data display control device to each data display control device.

(2) Each data display control device stores the effective coordinate data from the central control device in the effective coordinate area storage section.

(3) The coordinate input device outputs the coordinate data indicating the detected coordinate position to the coordinate input section of each data display control device.

(4) The coordinate conversion unit of each data display control device compares the coordinate information from the coordinate input unit with the coordinate information of the effective coordinate area storage unit, and the effective coordinates of the display device managed by the data display control device. If it is determined that the coordinate information is present in the area, and if it is determined that the coordinate information is present in the effective coordinate area, the input coordinate information is converted into the coordinates of the display device and output to the cursor control unit.

(5) The cursor control unit of each data display control device generates a cursor video signal having the coordinates from the coordinate conversion unit as position information, and the video signal is sent to the display device via the data input / output unit. Output.

[0009]

The above-mentioned prior art does not take into consideration the input resolution of the coordinate input device, and as the number of multi-screens increases, the coordinate input resolution for each display screen becomes worse. Was there.

It is an object of the present invention to realize a multi-screen control system in which the coordinate input resolution for each display screen does not change even if the number of multi-screens increases.

[0011]

In order to achieve the above object, the present invention is a multi-screen control system in which a coordinate input device is added to each data display control device that manages each display device. is there.

A multi-screen control system of the present invention is a display device for receiving an image signal and displaying an image on the screen, and a data display control for outputting an image signal for displaying an image and a cursor on the display screen of the display device. Data display of each image display system by combining a plurality of image display systems each including a device and a coordinate input device connected to the data display control device and indicating a display position of a cursor displayed on the display screen of the display device. It is composed of a central control unit which is connected to the control unit and controls each data display control unit.

[0013]

The data display control device receives the coordinate data of the cursor display position from the coordinate input device which indicates the display position of the cursor, generates the video signal for the cursor from the coordinate data, and outputs this video signal to the data input / output unit. Through
Output to the display device managed by the data display control device. Since this is a multi-screen control system in which a plurality of such image display systems are combined, one coordinate input device, one data display control device, and one display device exist for each image display system. Is a one-to-one correspondence system. That is, the resolution of the coordinate input device does not change depending on the number of multi-screens, and it is not necessary to determine whether the coordinates indicating the display position of the cursor are effective coordinate data for the display device.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a system configuration diagram for explaining the system configuration of a multi-screen control system of the present invention, FIG. 2 is a block diagram of a data display device (FIG. 1), and FIG. 3 is a coordinate input device (FIG. 1). It is a block diagram of.

The display device 1 receives the video signal output from the data display control device 2 and displays an image on the display screen. The coordinate input device 3 detects the coordinate position pressed by the tablet unit 30 to specify the position of the cursor displayed on the display screen, and outputs the coordinate data from the coordinate information output unit 31 to the data display control device 2. To do. The data display control device 2 receives the coordinate data via the coordinate information input unit 20, generates a cursor video signal in the cursor control unit 21, and outputs it as a video signal to the display device 1 via the data input / output unit 22. Output. A plurality of image display systems 4 including the display device 1, the data display control device 2, and the coordinate input device 3 (in this embodiment, the display device 11,
The image display system 14 composed of the data display control device 12 and the coordinate input device 13 (only one) is combined and the central control device 5 controls those image display systems to form a multi-screen control system.

The positional relationship between the coordinate input device and the display device in this embodiment will be described with reference to the system image diagram of FIG. In the system image diagram of FIG. 4, it is assumed that the multi-screens are arranged side by side.

When the cursor 402 is displayed on the display screen 401 of the display device 400, the coordinate pointing bar 404 is displayed on the tablet 403 of the image display system to which the display device 400 belongs.
Is used to indicate the cursor position by the pressurizing operation. Similarly, the cursor 41 is displayed on the display screen 411 of the display device 410.
When 2 is displayed, the position of the cursor is designated by the pressing operation using the coordinate pointing rod 404 on the tablet 413 of the image display system to which the display device 410 belongs.

The tablet 403 and the display screen 401 are
Corresponding to the pair 1, all cursor coordinate designations by the coordinate pointing rod 404 on the tablet 403 are performed by the display device 4.
00 is displayed on the display screen 401 as a cursor 402. Similarly, the tablet 413 and the display screen 411 are
There is a one-to-one correspondence, and all cursor coordinate instructions by the coordinate pointing bar 404 on the tablet 413 are reflected as a cursor 412 on the display screen 411 of the display device 410.

When the coordinate pointing rod 404 is moved while being pressed on the tablet 403 and moved to the right end of the tablet 403, the cursor 402 on the display screen 401 moves to the right end of the display screen 401. When the coordinate pointing rod 404 is moved beyond the tablet 403 to the left end on the tablet 413, the cursor 402 on the display screen 401 disappears from the display screen 401, and the cursor 412 is displayed on the left end of the display screen 411. Further, when the coordinate pointing rod 404 is moved while being pressed on the tablet 413 and moved to the center of the tablet 413, the cursor 412 on the display screen 411 moves to the center of the display screen 411. In this way, by moving the coordinate pointing rod 404 while pressing it on the tablet, the cursor is displayed while moving on the display screen.

The resolution of the tablet with respect to one display screen does not change because one tablet corresponds to one display screen. Further, it is not necessary to judge whether the coordinates indicating the display position of the cursor are effective coordinate data for the display device.

The image display system in this embodiment is an independent image display device that can also operate independently.

FIG. 5 shows an example of a multi-screen control system according to another embodiment of the present invention, which is a tablet layout example of a 4-screen multi-screen control system (a) and a 6-screen multi-screen control system (b). The layout is shown.

In the example of the four-screen multi-screen control system (a), the tablet 50 and the tablet 51 are arranged on the left and right,
Similarly, the tablet system is a combination of a tablet 52 and a tablet 53, which are arranged on the left and right, in a vertical arrangement.

An example of the six-sided multi-screen control system (b) is a tablet 54, a tablet 55 and a tablet 56.
Is a tablet system in which a tablet 572, a tablet 58, and a tablet 59, which are similarly arranged in the left center and the right, are vertically combined.

As described above, the tablets can be arranged in combination vertically and horizontally according to the arrangement of the display screen.

[0027]

According to the present invention, since the coordinate input device exists for each image display system, the resolution of the coordinate input device does not change even if the number of screens of the multi-screen is increased or decreased.

Further, it is not necessary to judge whether the coordinates designating the display position of the cursor are effective coordinate data for the display device.

There are effects such as the following.

[Brief description of drawings]

FIG. 1 is a system configuration diagram illustrating a system configuration of a multi-screen control system of the present invention.

FIG. 2 is a block diagram of a data display device (FIG. 1).

FIG. 3 is a block diagram of a coordinate input device (FIG. 1).

FIG. 4 is a system image diagram illustrating a positional relationship between a coordinate input device and a display device in the present embodiment.

FIG. 5 is a tablet layout showing an example of a multi-screen control system according to another embodiment of the present invention.

[Explanation of symbols]

1, 11, 400, 410 ... Display device, 2, 12 ... Data display control device, 3, 13 ... Coordinate input device, 4, 14 ... Image display system, 5 ... Central control device, 20 ... Coordinate information input section, 21. ... cursor control section, 22 ... data input / output section, 30 ... tablet section, 31 ... coordinate information output section, 401, 411 ... display screen, 402, 412 ... cursor, 403, 413, 50, 51, 52, 53, 54 , 5
5, 56, 57, 58, 59 ... Tablet, 404 ... Coordinate pointing rod.

Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI Technical display location G09G 5/14 8121-5G

Claims (4)

[Claims] 1. A display device for receiving an image signal to display an image on a screen, a data display control device for outputting the image signal for displaying an image and a cursor on a display screen of the display device, and the data. An image display system comprising a coordinate input device connected to a display control device and instructing a display position of a cursor displayed on the display screen of the display device;
A multi-screen control system comprising a plurality of combinations, which is connected to each data display control device of each image display system and controls a multi-screen by a central control device which controls the data display control device. 2. The coordinate input device of each image display system is arranged in the same layout relationship as that of each display device of each image display system arranged on a multi-screen. The described multi-screen control system. 3. The multi-screen control system according to claim 1, wherein each coordinate input device of each image coordinate input display system can be arranged horizontally or vertically continuously. 4. The multi-screen control system according to claim 1, wherein a method of detecting a coordinate position by pressure detection is adopted as a coordinate detection method of each coordinate input device.