JP2003288069A - Video display system and video display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video display system and a video display device suitable for automatically changing a video displayed on a part to be displayed into a dedicated video to display when there is no input in the video display device or when a specific video is inputted. <P>SOLUTION: The video display system 1 comprises an indicating device 2 for indicating the video data to display and transmitting an image signal to the video display device 3, the video display device 3 for acquiring transmitted video data, performing the analysis, the switching, etc., of the video data, and displaying the video on the part to be displayed 4, and the part to be displayed 4 on which a video projected from the video display device 3 is displayed. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video display system for displaying video data according to instructions of a system user on a display target, and more particularly to switching specific video data to dedicated video data for display. The present invention relates to a video display system and a video display device that are suitable for use.

[0002]

2. Description of the Related Art Conventionally, a video display device such as a projector and a PC (Personal Computer) are connected by wire communication or wireless communication so that data communication is possible, and video data instructed by the PC is displayed on a screen or the like. There is a system that projects on a display target.

[0003]

However, in the above system, the system user gives an instruction to the PC regarding the image data to be displayed, always inputs the image output signal from the PC to the projector, and projects it on the screen. The projector will project any image output from the PC on the screen unless the operation is stopped by a switch or the like. Therefore,
When an error occurs in the PC, an inappropriate image may be displayed on the display target part, such as an image showing the error being projected on the screen.

Therefore, the present invention has been made by paying attention to such unsolved problems of the conventional technique, and when there is no input to the video display device or when a specific video is input. Another object of the present invention is to provide a video display system and a video display device that are suitable for automatically switching and displaying the video displayed on the display target portion so that the video is a dedicated video.

[0005]

In order to achieve the above object, a video display system according to claim 1 of the present invention comprises:
An image display system for displaying an image according to an instruction content from a system user on a displayed portion, and an image display device for displaying the image on the displayed portion, and for giving an instruction to the image display device. And an image data analysis means for analyzing the image data, and an image to be displayed on the displayed portion when the image data analyzed by the image data analysis means is specific data. An image switching means for automatically switching to a dedicated image is provided.

With such a configuration, the system user can give an instruction to display an image on the image display device by the instruction device, and the image data analysis means analyzes the image data of the instruction content, The video switching unit can automatically switch the video displayed on the display target portion to another video when the video from the instruction device is analyzed to be a specific video by analysis.

That is, when the image of the instruction content sent from the instruction device is the result of the analysis by the image data analysis means, for example, the inappropriate content, the image switching means displays the image on the displayed portion. The image to be displayed is automatically switched to a special image prepared in advance, which helps prevent unsightly images from being displayed on a display part such as a screen.

The invention according to claim 2 is the video display system according to claim 1, wherein the specific data is
It is characterized in that it is data indicating that an error has occurred in the pointing device. That is, when the video data from the pointing device is data indicating that an error has occurred in the pointing device as a result of analysis by the video data analyzing means, the video switching means separates the video to be displayed on the display target portion. The video is automatically switched to. Therefore, for example, when the pointing device is a PC, it is possible to prevent an error screen such as a hang-up screen of the PC from being displayed on a displayed portion such as a huge screen, which makes the presentation unsightly. Help to reduce the occurrence of.

According to a third aspect of the invention, in the video display system according to the first or second aspect, the specific data is for displaying a specific mark on the displayed portion in the data. It is characterized by including data. That is, when the video data instructed by the pointing device includes video data indicating a specific mark, the video switching means switches the video to another one. Is. For example, when the pointing device is a PC, P is added to the video data from the pointing device.
When the image data such as the logo mark and the clock display is included in the normal screen of the OS (Operating System) of C, the image to be displayed on the displayed portion is changed to another one by the image switching means. For example, when the video display device is a projector, the software for presentation is normally started and the video data displayed on the software is displayed on the projector, so that the normal screen of a personal PC, etc. , It is convenient because you can hide the screen you do not want others to see.

The invention according to claim 4 is the video display system according to any one of claims 1 to 3, wherein the dedicated video is a video for advertisement. In other words, the video switching means is configured to display the video for advertisement on the video display device when the analysis result by the video data analyzing means is specific video data. Therefore, when the video data that is not desired to be displayed is input, the video for advertisement is displayed on the displayed portion, so that the display of the unsightly video can be prevented and the product can be advertised. So convenient.

According to a fifth aspect of the present invention, in the video display system according to the first or third aspect, the video data of the video in the video switching means is specific data by the video data analyzing means. At that time, processing is performed so that the image is displayed on the displayed portion, and when the data is other than the specific data, the image displayed on the displayed portion is automatically switched to a dedicated image. It is characterized by performing processing.

That is, when the video data from the pointing device is a specific video by the video data analyzing means, the video switching means causes the video to be displayed on the displayed portion, and the video data other than the specific data is displayed. When it is data, it is automatically switched to a dedicated video.
Therefore, for example, when video data read by a dedicated application executed in the pointing device is displayed on the display target part, a mark including an application-specific mark in the video data is specified as specific data. This is convenient because it can prevent the display of images that you do not want to display when no other software is running.

According to a sixth aspect of the present invention, in the video display system according to any one of the first to fifth aspects, the video manual operation capable of manually switching the video by the video switching means. It is characterized in that a switching means is provided. In other words, by using the video manual switching means, the system user can manually switch to another video when a specific video is input and display the video on the display unit. is there. In addition, the manual switching can prevent automatic switching to a dedicated video when specific video data is input.

The invention according to claim 7 is the video display system according to any one of claims 1 to 6, further comprising an input determination means for determining the presence or absence of the video data from the pointing device. When it is determined that the data has not been input, the dedicated image is displayed on the display target portion. That is,
It becomes possible to determine whether or not the instruction content is input by the input determination means, and when there is no instruction content,
Since the dedicated video is displayed on the display target portion, it is possible to effectively use the system such as displaying the video for advertisement when there is no input.

According to an eighth aspect of the invention, in the image display system according to any one of the first to seventh aspects, the image display device displays the image by the optical projection of the displayed portion. It is characterized in that it is a projection-type image display device for displaying on. That is, the image display device is a projection type image display device that projects an image displayed on the liquid crystal by a lens such as a liquid crystal projector onto a screen.

The video display device according to claim 9 is a video display for displaying a video image on the display target portion in a video display system for displaying a video image according to the instruction content from the system user. An image data analysis means for analyzing image data input from the pointing device, and the display target when the image data analyzed by the image data analysis means is specific data. And a video switching unit for automatically switching the video displayed on the unit to a dedicated video.

The invention according to claim 10 is the invention according to claim 9.
In the above-mentioned video display device, the specific data is data indicating that an error has occurred in the pointing device. The invention according to claim 11 is the video display device according to claim 9 or 10, wherein the specific data includes data for displaying a specific mark on the display target portion. It is characterized by that.

The invention according to claim 12 is the invention according to claim 9.
The video display device according to any one of claims 11 to 11, wherein the dedicated video is a video for advertisement. The invention according to claim 13 is the video display system according to claim 9 or claim 11,
It is characterized in that a video manual switching means capable of manually switching the video by the video switching means is provided.

The invention according to claim 14 is the invention according to claim 9.
14. The video display device according to claim 13, wherein the video switching unit, when the video data is specific data by the video data analyzing unit,
It is characterized in that the video switching processing is automatically performed so that the video is displayed on the display target portion. According to a fifteenth aspect of the invention, in the video device according to any one of the ninth to fourteenth aspects, an input determination means for determining the presence or absence of the video data from the instruction device is provided.
When it is determined that the data has not been input, the dedicated image is displayed on the display target portion.

The invention according to claim 16 is the invention according to claim 9.
The image display device according to any one of claims 15 to 15, wherein the image display device is a projection type image display device that displays the image on the display target portion by optical projection. Here, the video display device according to any one of claims 9 to 16 is a device used in the video display system according to any one of claims 1 to 6, and the description thereof is omitted because its operation and effect are similar. To do.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are diagrams showing a first embodiment of a video display system according to the present invention. First, the configuration of the video display system according to the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing the configuration of a video display system according to the present invention.

The video display system 1 includes an instruction device 2 for instructing video data to be displayed on the video display device 3 and transmitting the video data, which will be described later, and the transmitted video data to obtain the video data. The display unit 3 includes an image display apparatus 3 for displaying an appropriate image on the display section 4 by performing analysis and switching, and a display section 4 for displaying an image projected from the video display apparatus 3.

The pointing device 2 is a PDA (Personal Digital
Assistant), laptop PC and other portable devices, desktop PC and WS (Work Station),
Data communication with the video display device 3 is performed by wire communication using a LAN cable or the like, or by wireless communication using a wireless LAN or the like. The image display device 3 is
An input determination unit 3a for determining the presence / absence of input of video data from the pointing device 2, and the video data from the pointing device 2 is acquired, and the data is analyzed to determine whether or not the data matches a specific video pattern. A specific pattern determination unit 3b for performing determination,
By acquiring the determination result of the input determination unit 3a, the determination result of the specific pattern determination unit 3b, and the video data from the instruction device 2,
An image switching unit 3c that transmits either the image data from the instruction device 2 or the dedicated image data stored in the memory unit 3d described below to the image projection unit 3e described below based on the determination result of each determination unit. , A memory unit 3d in which a dedicated image is stored, an image projecting unit 3e that obtains image data from the image switching unit 3c and projects it on the display target unit 4, a power supply of the image display unit 3, and a manual image switching Alternatively, an operation unit 3f for performing settings such as automatic switching, and a manual switching unit 3g for controlling the video switching unit 3c by an instruction from the operation unit 3f when manual switching of images is set by the operation unit 3f. Composed of.

The image display device 3 is not shown,
RO storing a program for controlling each processing unit
M and R for storing data used by the program
AM, a CPU (Central Processing Unit) for executing programs, and an I / O for transmitting and receiving data between each device.
And an F (interface) circuit. The display target portion 4 can display an image projected by the image projection portion 3e such as a dedicated large screen.

Next, the flow of the operation of the video display system 1 when the automatic video switching is set will be described with reference to FIG. Figure 2
4 is a flowchart showing a flow of operations of the video display system 1 when automatic video switching is set. As shown in FIG. 2, first, the process proceeds to step S200, where the input determination unit 3a determines whether or not there is input of video data from the instruction device 2, and if it is determined that there is input (Yes) Moves to step S202, and otherwise (No) moves to step S220.

When the process proceeds to step S202, the input determination unit 3a determines the data indicating the determination result and the video data input from the pointing device 2 as the specific pattern determination unit 3a.
b, and the process proceeds to step S204. Step S
In 204, the specific pattern determination unit determines whether the received video data matches the video data of the specific pattern registered in advance in a database (not shown), and when it is determined that they match (Yes ) Is step S
If not (No), the process proceeds to step S21.
Move to 2. Here, the video data of the specific pattern is
Video data including a specific mark displayed on the normal screen of the pointing device 2, video data indicating the occurrence of an error in the pointing device 2, or the like, that is, a video that is not desired to be displayed on the display unit 4.

When the process proceeds to step S206, the specific pattern determination section 3b outputs the determination result to the video switching section 3
After transmitting to c, it transfers to step S208. Step S
In the case of shifting to 208, the video switching unit 3c reads the first dedicated video data from the memory unit 3d and shifts to step S210. Here, the first dedicated video data is a video displayed on the display section 4 instead of this video when the video data from the instruction device 2 matches the video data of the specific pattern.

In step S210, the video switching unit 3c transmits the first dedicated video data to the video projection unit 3e, and the process proceeds to step S212. When the process proceeds to step S212, the image projection unit 3e projects the first dedicated image on the display target unit 4, and the process proceeds to step S200.
On the other hand, if it does not match the video data of the specific pattern
In the case of shifting to 214, the specific pattern determining unit 3b transmits the data indicating the determination result and the video data to the video switching unit 3c, and shifts to step S216.

In step S216, the video switching unit 3c
Since the determination result does not match the specific pattern, the image data input from the instruction device 2 is transmitted to the image projection unit 3e, and the process proceeds to step S218. Step S21
8, the image projection unit 3e causes the pointing device 2 to
The input image from the projector is projected on the display target portion 4, and step S20 is performed.
Move to 0.

When it is determined in step S200 that the video data is not input from the pointing device 2 and the process proceeds to step S220, the input determination unit 3a determines that the video switching unit 3c has no input data. Is transmitted and the process proceeds to step S222. In step S222, the video switching unit 3c causes
The second dedicated video data is read from the memory unit 3d and the process proceeds to step S224. Here, the second dedicated video data is a video to be displayed on the display target portion 4 when the video data is not input from the instruction device 2.

When the process proceeds to step S224, the display switching section 3c transfers the second dedicated video data to the video projection section 3c.
e, and the process proceeds to step S226. Step S
At 226, the video projection unit 3e projects the second dedicated video image on the display target unit 4, and the process proceeds to step S200.
That is, the processes of steps S200 to S226 are repeated, and a process of automatically determining an appropriate image according to the input condition and displaying the image on the display unit 4 is performed.

When the manual switching of the image is set by the operation unit 3f, arbitrary image data is manually selected from the dedicated image data stored in the memory unit 3d and the display unit 4 is displayed. It is also possible to display any input video data without performing the determination process of the specific pattern determination unit 3b. Further, the actual operation of the present embodiment will be described based on FIG. FIGS. 3A and 3B are diagrams showing an example of video data of a specific pattern used when the specific pattern determination unit compares the input video data.

First, as a prerequisite, the system user
Assuming that the video display system 1 is used for the presentation of the company's product, a notebook PC is used as the pointing device 2, a liquid crystal projector equipped with the function of the present invention is used as the video display device 3, and the display target portion 4 is large. It is assumed that the image is automatically switched by the operation unit 3f using the screen shown in FIG.

The system user first performs the operation of setting the video to be displayed on the display target section 4 by the dedicated application software installed in the instruction device 2.
Accordingly, when the video data of the product is input to the input determination unit 3a, the input determination unit 3a determines that the video data is input (step S200), and the data indicating the determination result and the video data are determined to be the specific pattern. It is transmitted to the unit 3b (step S202). Then, the data indicating the determination result is analyzed, and the specific pattern determination unit 3b compares the specific pattern video data recorded in the database with the product video data. In this case, the specific pattern does not match. (Step S204) The data indicating the determination result and the video data of the product are transmitted to the video switching unit 3c (step S212). Further, the video switching unit 3c analyzes the data indicating the determination result and transmits the video data of the product to the video projection unit 3e (step S21).
4), the image projection unit 3e displays the image data of the product on the display target unit 4 (step S216).

Further, the application software for setting the data displayed by the pointing device 2 is terminated, and the first screen 30 shown in FIG. 3A is displayed on the display unit of the pointing device 2 (not shown). The display processing in this case will be described. In the figure,
The first screen 30 has a first mark 30a at the bottom of the screen,
The second mark 30b is displayed, and a plurality of third marks 30b are displayed in the upper left of the screen.
The mark 30c is displayed. When the video data of the first screen 30 is input to the input determination unit 3a, it is determined that there is input (step S20).
0), the data indicating the determination result and the video data of the first screen 30 are transmitted to the specific pattern determination unit 3b (step S202). The specific pattern determination unit 3b analyzes the determination result and compares the video data of the specific pattern registered in the database with the video data of the first screen 30. Here, in the present embodiment,
The third marks 30a to 30c are registered in the database as the image data of the specific mark, and thus it is determined that the image data of the first screen 30 matches the image data of the specific pattern (step S204), and the image Switching unit 3
The determination result is transmitted to c (step S206). Furthermore,
The video switching unit 3c analyzes the determination result and reads the first dedicated video data from the memory unit 3d (step S
208) and transmits the data to the image projection unit 3e (step S210). Then, the video projection unit 3e displays the first dedicated video data on the display target unit 4 (step S2).
12). Here, in the present embodiment, the first dedicated video data is assumed to be a non-obtrusive video such as a "painting" or a "photograph of a plant" that does not destroy the atmosphere of the venue.

Furthermore, the pointing device 2 hangs up, and the error message 35a is displayed as shown in FIG.
When the second screen 35 including the is displayed on the display unit of the instruction device 2 (not shown), as in the case of the first screen 30 described above, in the present embodiment, the error message display screen is displayed. The screen 35 of No. 2 is registered in the database. Therefore, the specific pattern determination unit 3b determines that the screen 35 matches the specific pattern, and the processes of steps S206 to S212 are performed.

If the input determination unit 3a determines that the video data is not input from the instruction device 2 (step S200), the data showing the determination result is transmitted to the video switching unit 3c (step S220). ), The video switching unit 3c analyzes the determination result and reads the second dedicated video data from the memory unit 3d (step S22).
2) The image data is transmitted to the image projection unit 3e (step S224). Further, when receiving the transmitted second dedicated video data, the video projection unit 3e projects the video on the display target unit 4 (step S226). here,
In the present embodiment, as the second dedicated video data, a video for advertisement of the product of the company to which the system user belongs is displayed.

As described above, the input determination unit 3a determines whether or not the video data is input, and if there is no input, the video switching unit 3c displays the video for advertisement, and thus the display is desired. It is possible to prevent the display of a video that is not present and to advertise the product, which is an effective use of the video display device. When the video data is input, the specific pattern determination unit 3b determines whether the video data matches the video data of the specific pattern registered in the database. Since it is designed to display the image of
This is useful for preventing the display of an inappropriate image such as an error screen when hangs up or a normal OS screen is displayed on the display unit 4.

Further, by operating the operation unit 3f, it is possible to set the manual switching of the image and manually select the image to be displayed on the display section 4, or to display the image included in the specific pattern. , The usability of the system is improved. Further, as the second embodiment, the specific pattern determination unit 3b in FIG. 1 displays the image determined as the input image data being the specific pattern image data on the display target unit 4 as it is, and otherwise. A flow of operation of the video display system to which another example of the video switching process for switching the video of FIG. 4 to the dedicated video for display is applied will be described with reference to FIG. FIG. 4 is a flowchart showing an operation process of the video display system to which another example of the video switching process is applied. The configuration of the system is the same as that of the video display system 1 in the first embodiment, and the description thereof will be omitted.

As shown in FIG. 4, first in step S400.
Then, the input determination unit 3a determines whether or not there is an input of video data from the instruction device 2, and when it is determined that there is an input (Yes), the process proceeds to step S402, and otherwise. (No) moves to step S420. When the process proceeds to step S402, the input determination unit 3
By a, the data indicating the determination result and the video data input from the instruction device 2 are transmitted to the specific pattern determination unit 3b, and the process proceeds to step S404.

In step S404, the specific pattern determination unit determines whether the received video data matches the video data of the specific pattern registered in advance in a database (not shown), and it is determined that they match. If yes (Yes), the process proceeds to step S406, and if not (No), the process proceeds to step S412. Here, the video data of the specific pattern is video data including a specific mark displayed on the execution screen of the dedicated software used in the present system which is executed in the indicating device 2b, that is, the displayed portion. This is the image you want to display on 4.

When the process proceeds to step S406, the specific pattern determination unit 3b transmits the data indicating the determination result and the image data to the image switching unit 3c, and the process proceeds to step S408. In step S408, the video switching unit 3c transmits the video data input from the instruction device 2 to the video projection unit 3e because the determination result matches the specific pattern, and the process proceeds to step S410. That is,
Since the input video data is video data instructed by dedicated software, it is processed so as to be displayed on the display section 4.

At step S410, the image projection unit 3e projects the input image from the pointing device 2 on the display target portion 4, and the process proceeds to step S400. On the other hand, if the image data of the specific pattern does not match and the process proceeds to step S412, the specific pattern determination unit 3b transmits the determination result to the image switching unit 3c, and the process proceeds to step S414.

When the process proceeds to step S414, the image switching unit 3c reads the first dedicated image data from the memory unit 3d, and the process proceeds to step S416. Here, the first dedicated video data is a video to be displayed on the display target section 4 instead of this video when the video data from the instruction device 2 does not match the video data of the specific pattern.

In step S416, the video switching unit 3c transmits the first dedicated video data to the video projection unit 3e, and the process proceeds to step S418. When the process proceeds to step S418, the image projection unit 3e projects the first dedicated image on the display target unit 4, and the process proceeds to step S400.
Further, in step S400, it is determined that the video data is not input from the instruction device 2, and step S42 is performed.
When it shifts to 0, the input determination unit 3a transmits data indicating the determination result that there is no input data to the video switching unit 3c, and shifts to step S422.

In step S422, the video switching unit 3c reads the second dedicated video data from the memory unit 3d, and the process proceeds to step S424. Here, the second dedicated video data is a video to be displayed on the display target portion 4 when the video data is not input from the instruction device 2.
After shifting to step S424, the display switching section 3c transmits the second dedicated video data to the video projecting section 3e, and shifts to step S426.

In step S426, the image projection unit 3e projects the second dedicated image on the display target unit 4, and the process proceeds to step S400. That is, similar to the first embodiment, the processing of steps S400 to S426 is repeated to automatically determine an appropriate video image according to the input condition and display it on the display target section 4.

Further, the actual operation of the second embodiment will be described with reference to FIG. FIG. 5 is a diagram showing an example of an execution screen of dedicated software. It should be noted that the preconditions will be described by taking as an example the case where the present system is applied to a presentation of an in-house product as in the first embodiment. In addition, the title logo displayed on the execution screen of the application software is used as the video data of the specific pattern.

The system user first uses the dedicated application software installed in the instruction device 2 to perform an operation of setting a video image to be displayed on the display section 4.
As shown in FIG. 5, the video data 50b of the product is read on the execution screen 50 of the application software, and this video data is input to the input determination unit 3a. As a result, the input determination unit 3a determines that the video data has been input (step S400), and the data indicating the determination result and the video data are transmitted to the specific pattern determination unit 3b (step S402). Then, the data indicating the determination result is analyzed, and in the specific pattern determination unit 3b,
The video data of the specific pattern recorded in the database is compared with the video data of the product. In this case, the application software is being executed, and as shown in FIG. Since the title logo 50a is included and the input video data matches the specific pattern (step S404).
The data indicating the determination result and the video data of the product are transmitted to the video switching unit 3c (step S406). Further, the video switching unit 3c analyzes the data indicating the determination result and transmits the video data of the product to the video projection unit 3e (step S4).
08), the image projection unit 3e displays the image data of the product on the display target unit 4 (step S410).

Further, the display processing when the application software is terminated will be described. When the video data in the state in which the application software is finished is input to the input determination unit 3a, it is first determined that there is input (step S40).
0), data indicating the determination result and video data of the screen at that time are transmitted to the specific pattern determination unit 3b (step S402). The specific pattern determination unit 3b analyzes the determination result and compares the video data of the specific pattern registered in the database with the video data. Then, it is determined that the video data does not match the video data of the specific pattern (step S404), and the video switching unit 3
The determination result is transmitted to c (step S412). Furthermore,
The video switching unit 3c analyzes the determination result and reads the first dedicated video data from the memory unit 3d (step S
414), and transmits the data to the image projection unit 3e (step S416). Then, the video projection unit 3e displays the first dedicated video data on the display target unit 4 (step S4).
18). Here, in the present embodiment, the first dedicated video data is assumed to be a non-obtrusive video such as a "painting" or a "photograph of a plant" that does not destroy the atmosphere of the scene.

As described above, since only the video data having the specific pattern included in the input video data is normally displayed and the other video is switched to the dedicated video for display, an application for video display is provided. This is convenient because it is possible to display only the video that you want to display, such as displaying only the video that was transmitted while the program was running.

Here, the input judging section 3a shown in FIG.
Corresponding to the input determination means according to claim 7 and claim 15,
The specific pattern determination unit 3b corresponds to the video data analysis unit according to claims 1, 5, 9, and 14, and the video switching unit 3c includes:
Corresponding to the video switching means according to claims 1, 5, 6, 9, 13 and 14, the manual video switching function of the operation section 3f and the manual switching section 3g is defined by claim 6 and claim 13.
It corresponds to the described video manual switching means.

In the above embodiment, the image display device 3 is provided with the input determination, the specific pattern determination, and the image switching function, but the present invention is not limited to this, and a dedicated function having the same function is provided. The device may be installed between the video display device 3 and the instruction device 2 to perform the same processing as described above. Further, in the above-described embodiment, the first to third marks 30a shown in FIG.
First screen 30 including ~ 30c and error message 3
Although the second screen 35 including 5a is taken as an example, the present invention is not limited to this, and video data of another pattern such as an OS-specific logo mark or a dedicated discrimination mark may be used for the discrimination.

Further, in the above-mentioned embodiment, the "picture", the "photograph of the plant", and the "video for advertisement" are displayed as the dedicated video, but the present invention is not limited to this.
Any image may be displayed according to the purpose of use of the image display system 1.

[0055]

As described above, according to the video display system of claims 1 to 3 of the present invention, the video of the instruction content sent from the pointing device is analyzed by the video data analyzing means. As a result, for example, when the content is inappropriate, the video switching unit automatically switches the video to be displayed on the display target section to the dedicated video prepared in advance, so that the unsightly video etc. This is useful for preventing images that you do not want to be displayed from being displayed on the display part such as the screen.

Further, according to the video display system of the fourth aspect, when the video data which is not desired to be displayed is inputted, the video for advertisement is displayed on the displayed portion, which is unsightly. This is convenient because it allows the product to be advertised while preventing the display of images. According to the video display system of claim 5, if the input video is a video to be displayed, it is displayed as it is, and if it is not desired to be displayed, it is switched to a dedicated video and displayed. As a result, it is useful for preventing unsightly images from being displayed on the display part such as a screen.

According to the video display system of the sixth aspect, by using the video manual switching means, the system user can manually switch the video displayed on the displayed portion to another arbitrary video. It can be displayed on the display unit, and it can be prevented from being automatically switched to a dedicated video when specific video data is input, so that the usability of the system is improved.

According to the video display system of the seventh aspect, it is possible to determine whether or not the instruction content has been input by the input determination means, and when there is no instruction content, it is dedicated to the displayed portion. Since the video is displayed, it is possible to effectively use the system, such as displaying a video for advertisement when there is no input. In addition,
The video display device according to any of claims 9 to 15 is used in the video display system according to any one of claims 1 to 7, and since the same effect is obtained, the description of the effect is omitted.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a video display system according to the present invention.

FIG. 2 is a flowchart showing a flow of operations of the video display system 1 when automatic video switching is set.

FIG. 3A and FIG. 3B are diagrams showing an example of video data of a specific pattern used in comparison with input video data in a specific pattern determination unit.

FIG. 4 is a flowchart showing an operation process of a video display system to which another example of the video switching process is applied.

FIG. 5 is a diagram showing an example of an execution screen of dedicated software.

[Explanation of symbols]

1 Video display system 2 pointing device 3 Video display device 4 Displayed part 30 First screen 35 Second screen 50 execution screen

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Masahiro Kitano             Seiko, 3-3-3 Yamato, Suwa City, Nagano Prefecture             -In Epson Corporation (72) Inventor Isuke Karaki             Seiko, 3-3-3 Yamato, Suwa City, Nagano Prefecture             -In Epson Corporation F term (reference) 5C082 AA03 BB01 CA76 CB01 DA87                       MM09 MM10

Claims (16)

[Claims] 1. A video display system for displaying a video image according to an instruction from a system user on a display target portion, and a video display device for displaying the video image on the display target portion,
When the instruction device for giving an instruction to the video display device, the video data analysis means for analyzing the video data, and the video data analyzed by the video data analysis means is specific data, An image display system comprising: an image switching unit that automatically switches an image displayed on the display target section to an exclusive image. 2. The video display system according to claim 1, wherein the specific data is data indicating that an error has occurred in the pointing device. 3. The video display system according to claim 1, wherein the specific data includes data for displaying a specific mark on the display target portion in the data. 4. The video display system according to claim 1, wherein the dedicated video is a video for advertisement. 5. The video switching means performs processing so that the video is displayed on the display target portion when the video data is specific data by the video data analyzing means, and the specific data is displayed. The video display system according to claim 1 or 3, wherein a process for automatically switching the video displayed on the displayed portion to a dedicated video is performed when the data is other than the data. 6. The video display system according to claim 1, further comprising video manual switching means capable of manually switching the video by the video switching means. 7. An input determination means for determining the presence or absence of data of the video from the pointing device, and displaying the dedicated video on the display target portion when it is determined that the data is not input. The image display system according to any one of claims 1 to 6, wherein: 8. The image display device according to claim 1, wherein the image display device is a projection type image display device that displays the image on the display target portion by optical projection. The described video display system. 9. A video display device for displaying a video image on the display target portion in a video display system for displaying a video image according to an instruction content from a system user, the input being from the instruction device. Video data analyzing means for analyzing the data of the video that has been analyzed, and when the data of the video analyzed by the video data analyzing means is specific data, the video to be displayed on the displayed portion is converted to a dedicated video. An image display device comprising: an image switching unit that automatically switches. 10. The video display device according to claim 9, wherein the specific data is data indicating that an error has occurred in the pointing device. 11. The video display device according to claim 9, wherein the specific data includes data for displaying a specific mark on the display target portion in the data. 12. The video display system according to claim 9, wherein the dedicated video is a video for advertisement. 13. The video display device according to claim 7, further comprising video manual switching means capable of manually switching the video by the video switching means. 14. The video switching means automatically performs video switching processing so as to display the video on the display target portion when the video data is specific data by the video data analysis means. The image display device according to claim 9 or 11, characterized in that 15. An input determination means for determining the presence or absence of data of the video from the pointing device is provided, and the dedicated video is displayed on the displayed portion when it is determined that the data is not input. The image display device according to any one of claims 9 to 14, wherein: 16. The image display device according to claim 9, wherein the image display device is a projection type image display device that displays the image on the display target portion by optical projection.