JPH0429484A - Video display system using multiple pictures - Google Patents

Abstract

PURPOSE:To effectively use a monitor of NTSC standards by automatically switching the video signal supplied to the monitor to the video signal of HDTV standards by a controller at the time of satisfying a prescribed condition in a video signal source which generates the video signal of first TV standards. CONSTITUTION:NTSC standards and HDTV standards are used as first TV standards and second TV standards respectively. A display controller 2 performs selective switching between video signals of R, G, and B outputted from first video signal sources 31 to 36 and those from a second video signal source 4 to supply them to monitors 11 to 16. That is, a controller 5 releases the operation stop of the second video signal source 4 and indicates the display controller 2 to select the output of the second video signal source 4 when receiving a prescribed command through a control signal line 8. Thus, a picture based on HDTV standards is displayed on the monitors 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Fields] The present invention relates to a video display system using a multi-screen that displays images using a plurality of television receivers (hereinafter referred to as TV) or monitors. It is related to.

[Prior Art] In recent years, research and development regarding high-definition TVs (hereinafter referred to as HDTVs) has been actively conducted, and various demonstrations (hereinafter referred to as demos) and events have already been conducted on HDTVs.
Events are being held using the. An example is shown in FIG. In addition, in the following description, when the subscript of a code is omitted, it is used as a general term.

FIG. 2 is a diagram showing a schematic configuration of a device that uses multiple monitors to display images based on the HDTV standard (1125 scanning lines/field frequency 80H2) on a large screen.
In FIG. 2, six monitors 105. ..., 10
6, a display controller 11, and a video signal source 12. Monitor 107. ..., 106 is NTSC standard (525 scanning lines/field frequency e011z)
It is a monitor. The video signal source 12 is HDTV standard R,
It generates G and B video signals and is composed of a video disc player (hereinafter referred to as VDP), a video tape recorder (hereinafter referred to as VTR), a TV camera, etc.

The display controller 11 also transmits R, G, and H HDTV video signals output from the video signal source 12 to each monitor 104 . ..., 1/6 area is distributed to 106 areas. As a result, an image based on one HDTV standard can be displayed on all six monitors.

According to the video display method using multi-screens with this configuration,
It is possible to display HDTV standard video signals using an NTSC standard monitor, which is cheaper than an HDTV standard monitor, and it is also possible to display high-definition images on an impressive large screen. It is used for various events.

[Problems to be Solved by the Invention] As shown in Fig. 2, HD T
When displaying high-definition images based on the HDTV standard on a large screen, it is possible to attract the attention of many people and is suitable for various events, but it is not possible to display only images based on the HDTV standard. Therefore, the equipment was not necessarily utilized effectively.

The present invention solves the above problems, and
It is an object of the present invention to provide a video display system using multiple screens that can display V standard images and that can effectively utilize a monitor.

[Means for Solving the Problems] In order to achieve the above object, the video display method using a multi-screen of the present invention includes a plurality of video display devices that display video signals based on a first television standard. a video signal generator that generates a video signal based on a first television standard; a video signal generator that generates a video signal based on a second television standard; and a video signal generator that generates a video signal that conforms to the first television standard. the plurality of video signal display devices by switching between the video signal generated by the video signal generation device that generates the video signal and the video signal generated by the video signal generation device that generates the video signal based on the second television standard; a control device that supplies a video signal to the first television, provided that a predetermined condition is satisfied in a video signal generating device that generates a video signal of at least the first television standard. The present invention is characterized in that the video signal based on the standard is switched to the video signal based on the second television standard.

[Operations and Effects of the Invention] In the present invention, a plurality of monitors of a first TV standard, for example, the NTSC standard, a video signal source of the first TV standard, and a video signal of a second TV standard, for example, of the HDTV standard, are provided. As shown in FIG. 2, it includes a signal source and a control device that switches the video signal supplied to the plurality of monitors from the video signal of the first TV standard to the video signal of the second TV standard, or vice versa. As with the conventional example, HDT is
Not only can video signals of the V standard be displayed, but also video signals generated from different video signal sources of the first TV standard can be supplied to each monitor. Since images from a TV standard video signal source can also be displayed, an NTSC standard monitor can be used effectively.

The control device automatically switches the video signal supplied to the monitor to the HDTV standard video signal when a predetermined condition is satisfied in the video signal source that generates the first TV standard video signal. Therefore, when a computer is used as a video signal source that generates a video signal of the first TV standard and a game or quiz is conducted in accordance with the purpose of the event or demonstration, when the goal is reached or the correct answer is In this case, it is possible to switch to a high-definition image that is in line with the purpose of the event or demonstration, thereby further arousing the audience's interest and deepening their understanding.

[Example code] Examples will be described below with reference to the drawings.

FIG. 1 is a diagram showing the configuration of an embodiment of a video display system using a multi-screen according to the present invention. In the figure, 1 to 16 are monitors, 2 is a display controller, and 31 to 36 are first a video signal source, 4 a second video signal source, 5 a control device, 6.
7.8 indicates a control signal line.

In FIG. 1, monitors 11 to 16 comply with the first TV standard;
For example, it is a monitor of the NTSC standard, and the first video signal sources 31 to 36 output video signals of the first TV standard. First video signal source 3. to 36, vTRl vDPl T outputs a video signal of the first TV standard.
Although a V-camera, a personal computer, a game device, etc. can be used, here, a personal computer will be used to conduct the quiz.

Further, the second video signal source 4 outputs a video signal of a second TV standard different from the first TV standard, and the second video signal source 4 outputs a video signal of a second TV standard different from the first TV standard.
A TV camera etc. can be used, but at least the first
Those that output high-definition video signals than the TV standard of
For example, it is desirable to use a video signal source of the above-mentioned HDTV standard.

In the following description, it is assumed that the first TV standard is the NTSC standard and the second TV standard is the HDTV standard.

The display controller 2 includes a first video signal source 3. 36 and the R, G, and H video signals output from the second video signal source 4 and supply them to the monitors II to 1e. Which video signal to select is determined by a command notified from the control device 5 via the control signal line 6. When the control device 5 instructs the selection of the first video signal source 3, the display controller 2 selects the first video signal source 3 for the monitor 1+(1=l,...,6). ．． Supplies the video signal output from the Therefore, in this case, images from different first video signal sources 3 are displayed on each monitor 1. Further, when the control device 5 instructs to select the second video signal source 4, the R, G, and H output from the second video signal source 4 are selected in the same way as explained in FIG. HDTV video signals are sent to each monitor 11. ...Distribute 1/6 area to +1s. As a result, one image based on the HDTV standard is displayed on all six monitors.

The control device 5 is composed of, for example, a microcomputer,
It controls the display controller 2, the first video signal source 3, and the second video signal source 4 in an integrated manner.

Specifically, it is as follows. Now, when an input device (not shown) such as a keyboard is operated and the operator instructs to take a quiz, the control device 5 transmits the control signal line 8.
The first video signal source 3 is activated via the control signal line 6, and an instruction to select the first video signal source 3 is given to the display controller 2 via the control signal line 6. As a result, for example, the monitor 1 has the first video signal source 3. The quiz image from the first video signal source 32 is displayed on the monitor 12. Other mojiri 13~
The same applies to 16. At this time, the control device 5 instructs the second video signal source 4 to stop its operation, for example, to pause, via the control signal line 7.

This allows the audience to answer the quiz using each input device (not shown) of the first video signal source 3. When each first video signal source 3 determines that the answer is correct, it notifies the control device 5 of a predetermined command via the control signal line 8.

Upon receiving the command, the control device 5 releases the stoppage of the operation of the second video signal source 4 and instructs the display controller 2 to select the output from the second video signal source 4. give.

As a result, an image based on the HDTV standard is displayed on the monitor 1.

Further, since the display controller 2 is controlled only by the control device 5, it is clear that switching of the video signal supplied to the monitor 1 can be forcibly performed by the input device of the control device 5. Therefore, if there is no correct answer to the quiz for a long time, the operator can force the HDT by operating the input device of the control device 5.
You can switch to a V standard image.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible. For example, although six monitors were used in the above embodiment, more monitors may be used.

In addition, in the above embodiment, if there is a correct answer to even one quiz, the entire screen is switched to an HDTV standard image, but only the one for which there is a correct answer is changed to an HDTV standard image, and all quizzes are changed to an HDTV standard image. It is also possible to set the entire screen to be an HDTV standard image when the answer is correct. Furthermore, it is also possible to switch to an HDTV standard image when a majority of correct answers are obtained.

Further, in the above embodiment, a personal computer is used as the first video signal source to conduct a quiz, but the present invention is not limited to this. As an alternative format, for example, it is possible to use a VTR or VDP as the first video signal source and switch to the DTVTV standard image (when all programs have finished). Various forms can be adopted.

In addition, in the above embodiment, the first TV standard is NTSC.
standard, but it is also possible to use the SECAM standard or PAL standard, and furthermore, the second TV standard can be set to the number of scanning lines of 1.
Although the HDTV standard is set to 125 lines/field frequency l1iOHz, the present invention is not limited to this, and various proposed HDTV standards can be adopted.

Furthermore, a plurality of second video signal sources may be provided and the video signal from one of them may be supplied.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a configuration of an embodiment of a video display system using multiple screens according to the present invention, and FIG. 2 is a diagram showing an example of a conventional configuration of a video display system using multiple screens. DESCRIPTION OF SYMBOLS 1... Monitor, 2... Display controller, 3... First video signal source, 4... Second video signal source, 5... Control device, 6.7. 8...Control signal line. Applicant Dai Nippon Printing Co., Ltd.

Claims (2)

[Claims] (1) A plurality of video display devices that display a video signal based on a first television standard, a video signal generator that generates a video signal that is based on the first television standard, and a video signal generator that generates a video signal that is based on a second television standard. a video signal generation device that generates a video signal, a video signal generated by the video signal generation device that generates a video signal of the first television standard, and the second video signal.
a control device that switches between a video signal generated by a video signal generator that generates a video signal based on the television standard and supplies the video signal to the plurality of video signal display devices;
The control device converts the video signal based on the first television standard to the video signal based on the second television standard, on condition that a predetermined condition is satisfied in the video signal generating device that generates the video signal according to at least the first television standard. A video display system that uses multiple screens and is characterized by switching to a video signal based on the television standard. (2) The video display system using a multi-screen according to claim 1, wherein the second television standard is a television standard of higher quality than the first television standard.