JP3120766B2 - Image display method and apparatus, information storage medium - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display method and apparatus for displaying and outputting image data on a large, substantially vertical display screen, and a program for causing a computer to execute the image display method of the image display apparatus. Information storage medium.

[0002]

2. Description of the Related Art Currently, when image data is presented to a large number of viewers in order to execute a presentation,
Image display devices such as liquid crystal projectors are generally used. Since the liquid crystal projector projects and outputs image data on a screen which is a large display screen which is disposed substantially vertically at a position away from the liquid crystal projector, it is possible to display and output the image data so that many viewers can visually recognize the image data.

[0003]

By using the above-described image display device such as a liquid crystal projector, it is possible to display and output image data at a position where many viewers can visually recognize the image data. However, when a large number of viewers are arranged in the front-back direction, the viewer in front can easily see the entire image data, but the viewer in the back can obstruct the viewer in front, and It may be difficult to see the lower part.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has an image display which enables all persons to recognize the entire image data even when a large number of viewers are arranged in the front-rear direction. It is intended to provide a method and apparatus.

[0005]

According to a first aspect of the present invention, there is provided an image display method for displaying and outputting image data registered as a large number of main scanning lines continuous in the sub-scanning direction on a substantially vertical large display screen. The main scanning lines sequentially supplied are sequentially output in the sub-scanning direction to display image data, accept input of various manual operations, and read out main scanning lines of image data in response to the manual operations. The position is switched between the start position and the middle position in the sub-scanning direction, and a state where the entire image data is displayed over the entire display screen and a state where the lower part of the image data is displayed at the upper part of the display screen are set. I changed it. In the image display method according to the second aspect of the present invention, the middle position of the data reading to be switched and set is displaced in the sub-scanning direction so that the entire image data is displayed over the entire area of the display screen. The state where the lower part of the image data is displayed is switched .

Therefore, according to the image display method of the present invention,
The image data is displayed and output at a position where many viewers can visually recognize it. At this time, if a large number of viewers are lined up in the front-back direction, the lower viewer may not be able to visually recognize the lower part of the image data. In such a case, the operator executes a predetermined manual operation. Then, the state in which the entire image data is displayed on the entire display screen is switched to the state in which the lower part of the image data is displayed on the upper part of the display screen. The whole will be presented.

The third aspect of the present invention is the first or second aspect.
In the image display method described above, a lower range of image data displayed on an upper portion of the display screen is changed in response to a manual operation. Therefore, the lower range of the image data displayed on the upper portion of the display screen is increased or decreased by a desired manual operation by the operator.

According to a fourth aspect of the present invention, there is provided an image display device for displaying and outputting image data on a substantially vertical large display screen, an image storage device in which a plurality of image data are registered in advance, Image supply means for supplying image data registered in the image storage means to the image display means,
Manual operation means for receiving various manual operations, and display control means for switching the image data supplied from the image storage means to the image display means to the whole and the lower part in response to the manual operation of the manual operation means. The image storage means, wherein the image data is registered as a number of main scanning lines continuous in the sub-scanning direction, the image display means,
The main scanning lines sequentially supplied are sequentially output in the sub-scanning direction to display image data, and the display control means sets the position at which the image supply means reads the main scanning lines of the image data from the image storage means. Switching between the head position and the middle position in the scanning direction is set. In the image display device according to the fifth aspect of the present invention, the image storage unit registers the image data as a number of main scanning lines that are continuous in the sub-scanning direction, and the image display unit stores the sequentially supplied main scanning lines. The lines are output in order in the sub-scanning direction to display image data, and the display control unit sets a position where the image supply unit reads a main scanning line of image data from the image storage unit as a head position in the sub-scanning direction. and switch setting to the intermediate position, the range adjusting device displaces the intermediate position of the data reading said display control means switching setting in the sub-scanning direction
You.

Therefore, in the image display device of the present invention, the image data registered in the image storage means is supplied to the image display means by the image supply means, and the image display means converts the image data into a substantially vertical large display screen. , The image data is displayed and output at a position where many viewers can view it. At this time, if a large number of viewers are lined up in the front-rear direction, the viewer below may not be able to visually recognize the lower part of the image data. When the manual operation is performed, the image data supplied from the image storage unit to the image display unit is switched between the whole and the lower part by the display control unit in response to the manual operation. Then, the state in which the entire image data is displayed in the entire area of the display screen and the state in which the lower part of the image data is displayed in the upper part of the display screen are switched. Will be presented.

The various means referred to in the present invention may be formed so as to realize their functions. For example, dedicated hardware, a computer provided with appropriate functions by a program, a computer provided by an appropriate program , The functions realized inside, and the combination thereof are allowed. Further, the large display screen referred to in the present invention means a display screen of a size used for visual recognition by a large number of viewers.

The invention according to claim 6 is the invention according to claims 4 and 5.
The image display device according to claim 1, further comprising a range adjustment unit that changes a lower range of the image data to be switched and set by the display control unit in accordance with the manual operation of the manual operation unit. Therefore, when the operator manually operates the manual operation means as desired, the lower range of the image data to be switched and set by the display control means is changed by the range adjustment means in accordance with the manual operation means, and is displayed at the upper part of the display screen. The range of the lower part of the image data is increased or decreased.

According to a seventh aspect of the present invention, in the image display device according to the fifth aspect, the image storage unit is configured to register the image data as a number of main scanning lines continuous in the sub-scanning direction. The image display means displays the image data by sequentially outputting the main scanning lines sequentially supplied in the sub-scanning direction, and the display control means determines that the image supply means outputs the main scanning lines of the image data from the image storage means. Is switched between the head position and the middle position in the sub-scanning direction.

Therefore, normally, the image display means outputs a large number of main scanning lines of the image data registered in the image storage means in order in the sub-scanning direction, whereby the image data is displayed on the display screen. However, when the position at which the image supply unit reads the main scanning line of the image data from the image storage unit is moved in the sub-scanning direction by the display control unit, the image display unit outputs the image data from the middle of the sub-scanning direction. Because
The lower part of the image data is displayed on the upper part of the display screen.

The invention according to claim 8 is the invention according to claims 4 and 5.
In the image display device described in the above, the image storage means registers image data as a number of main scanning lines continuous in the sub-scanning direction, and the image display means stores the main scanning lines sequentially supplied in the sub-scanning direction. The display control means outputs the image data in order in the scanning direction, and the display control means sets a position at which the image supply means reads a main scanning line of the image data from the image storage means as a head position and a middle position in the sub-scanning direction. And the range adjuster displaces the midway position of the data reading, which is set by the display controller, in the sub-scanning direction.

Therefore, normally, the image data is displayed on the display screen by the image display means sequentially outputting a large number of main scanning lines of the image data registered in the image storage means in the sub-scanning direction. However, when the position at which the image supply unit reads the main scanning line of the image data from the image storage unit is moved in the sub-scanning direction by the display control unit, the image display unit outputs the image data from the middle of the sub-scanning direction. Because
The lower part of the image data is displayed on the upper part of the display screen. Further, when the middle position of the data reading switched and set by the display control means is displaced in the sub-scanning direction by the range adjusting means, the position at which the image display means outputs image data from the middle of the sub-scanning direction is displaced. The range below the image data displayed at the top of the screen will change.

The invention according to claim 9 is the invention according to claims 4 to 8
The image display device according to any one of claims 1 to 3, wherein the display screen includes a screen arranged at a position separated from the image display unit, and the image display unit includes the display screen arranged at a position separated from the image display unit. And outputs the image data. Therefore, since the image data is projected and output by the image display means on the display screen arranged at the separated position, the image data is displayed and output so that many viewers can easily recognize it.

The invention according to claim 10 is the invention according to claims 4 to
9. The image display device according to any one of 9 , wherein the image supply unit supplies image data one by one from the image storage unit to the image display unit in response to a manual operation of the manual operation unit. Therefore, the image data is supplied one by one from the image storage unit to the image display unit by the image supply unit in response to the manual operation of the manual operation unit, and the still image data is displayed one by one as desired by the operator. The state in which the whole is displayed and the state in which the lower part is displayed are switched each time.

According to an eleventh aspect of the present invention, in the image display apparatus according to the tenth aspect , the image supply means reads out image data one by one from the image storage means, and the image readout means. And an image output unit for temporarily storing one image data read out from the sub-scanning position from a predetermined sub-scanning position.

Therefore, when the image supply means supplies the image data one by one from the image storage means to the image display means in response to the manual operation of the manual operation means, one image data is read from the image storage means by the image reading means. Are read out one by one. The read one image data is temporarily held by the image holding means, and the held one image data is read from a predetermined sub-scanning position by the image output means, so that the whole of one image data is displayed. State and the state where the lower part is displayed can be easily switched.

The information storage medium of the invention according to claim 12 is:
Image storage means in which image data is registered as a number of main scanning lines continuous in the sub-scanning direction, image display means for outputting sequentially supplied main scanning lines in the sub-scanning direction in order to display image data, and manual Supplying a plurality of image data registered in advance in the image storage means to the image display means on an information storage medium storing software readable by a computer to which the operation means is connected; The position at which the main scanning line of the image data is read from the image storage means is switched between the head position and the middle position in the sub-scanning direction in response to the manual operation of the operation means, and the image data supplied to the image display means is set. A program for causing the computer to perform switching between the whole and the lower part is stored. In the information storage medium according to the present invention, a position at which a main scanning line of image data is read from the image storage means is switched between a head position and a middle position in the sub-scanning direction in response to manual operation of the manual operation means. A program for causing the computer to execute setting and shifting the data reading halfway position to be set in the sub-scanning direction and switching the image data supplied to the image display means between the whole and the lower part is stored. Have been.

Accordingly, when a computer stored in the information storage medium of the present invention is read by a computer to which image display means and manual operation means are connected, and the corresponding processing operation is executed, this computer Since a plurality of image data registered in advance in the storage unit is supplied to the image display unit, the image display unit can display and output the image data at a position where a large number of viewers can visually recognize the image data. Further, since the image data supplied to the image display means is switched between the whole and the lower part in response to the manual operation of the manual operation means, for example, many viewers are arranged in the front-rear direction and Even when the lower part of the image data cannot be visually recognized, as a result, the entire image data is presented to a viewer behind.

The information storage medium referred to in the present invention is not particularly limited as long as a program for causing a computer to execute various processes is stored in advance as software. ROM (Read Only Memory) or HDD (Hard
Disc (Driving Drive), CD (Compact Disc) -ROM or F
D (Floppy Disc), etc. are allowed.

The computer referred to in the present invention may be any device that can read a program made of software and execute a corresponding processing operation.
(Central Processing Unit) as a main component, and a device to which various devices such as a ROM, a RAM, and an I / F (Interface) are connected as necessary is allowed.

[0024]

FIG. 1 shows a first embodiment of the present invention.
This will be described below with reference to FIG. FIG. 1 is a schematic diagram showing a use state of an image display system in which the image display device according to the present embodiment is a part, FIG. 2 is a block diagram showing the structure of the image display system, and FIG. FIG. 3 is a plan view illustrating an appearance of a controller. 4 is a flowchart showing a main routine of the image display method according to the present embodiment, FIG. 5 is a flowchart showing a subroutine of the next screen display processing, FIG. 6 is a flowchart showing a subroutine of the previous screen display processing, and FIG. 9 is a flowchart showing a subroutine of FIG.

As shown in FIG. 1, the image display device 1 according to the present embodiment is combined with a screen 2 serving as a display screen to form an image display system 3. The screen 2 is a large screen used for visual recognition by a large number of viewers 4, and is disposed substantially vertically so as to be visually recognized by the large number of viewers 4. The image display device 1 according to the present embodiment is manually operated by an operator 5, and projects and displays image data on a screen 2 disposed at a separated position.

As shown in FIG. 2, the image display device 1 of the present embodiment includes a video output device 10 as a device main body and a projection device 11 as image display means. Is connected to a controller 12 which is a manual operation means. The video output device 10 includes an image storage medium 13 as an image storage unit, an image reading circuit 14 as an image reading unit, an image memory 15 as an image holding unit, and a video output circuit 16 corresponding to the image output unit and the display control unit. , Etc.

The image storage medium 13 is, for example, an MO (Magn
etic Optical Disc) and a plurality of image data are registered in advance. This image data is stored in, for example, a bitmap format, and is composed of a number of main scanning lines that are continuous in the sub-scanning direction.

The image reading circuit 14 is provided with, for example, MOD (M
O Drive) and a control unit connected to it.
The image data is read one by one from the image storage medium 13 in response to a manual operation of the controller 12 described later. The image memory 15 is composed of a predetermined storage area secured in a random access memory (RAM), and temporarily stores one image data read by the image reading circuit 14.

The video output circuit 16 is, for example, a D / AC
(Digital / Analog Converter) or the like, and converts one image data held in the image memory 15 into a video signal and supplies it to the projection device 11. This projection device 11
For example, it consists of an optical system part of a liquid crystal projector,
The image data supplied from the video output device 10 is projected on the screen 2 and displayed.

However, the video output circuit 16 operates in response to a manual operation of the controller 12 described later.
Is switched between the whole and the lower part.
More specifically, since the image memory 15 temporarily holds the image data as a number of main scanning lines continuous in the sub-scanning direction, the video output circuit 16 reads the main scanning line of the image data from the image memory 15 in the sub-scanning direction. The position is switched between the start position of the default setting and the intermediate position set in advance.

The controller 12 inputs the control data necessary for the image reading circuit 14 and the video output circuit 16 as described above.
A switching key 23 and the like are provided. When the next screen key 21 is input, an instruction to read the next image data is input to the image reading means 14. When the previous screen key 22 is input, the previous image data is read to the image reading means 14. Instructions are entered as data.

When the switching key 23 is operated, the video output circuit 16 sets the sub-scanning position at which the main scanning line of the image data is read from the image memory 15 to the default starting position and the preset intermediate position. Since an instruction to switch alternately is inputted, the state where the entire image data is displayed on the entire area of the screen 2 and the state where the lower part of the image data is displayed on the upper part of the screen 2 are switched.

In the image display device 1 of the present embodiment, as described above, image data is supplied from the image storage medium 13 to the projection device 11 by the image reading circuit 14, the image memory 15, and the video output circuit 16 as described above. , Image reading circuit 14
The image supply means is formed by the image memory 15 and the video output circuit 16.

An image display method using the image display device 1 according to the present embodiment in the above-described configuration will be sequentially described below. First, as shown in FIG. 1, the image display device 1 of the present embodiment is used as an image display system 3 in combination with a screen 2 to present image data to a large number of viewers 4. used.

In this case, the large screen 2 is arranged substantially vertically in front of and at the head of a large number of viewers 4, and the image display device 1 is arranged at the head of and behind the viewers 4.
Therefore, as shown in FIG.
2 to input various keys 21 to 23 (step S
1 to S3), the image display device 1 displays and outputs image data on the screen 2 in response to this (steps S4 to S8).

For example, when the operator 5 performs an input operation on the next screen key 21 of the controller 12 (step S1), a processing operation for displaying and outputting the next image data is executed.
(Step S4). In this case, as shown in FIG. 5, the next image data is read from the image storage medium 13 by the image reading circuit 14 (step T1) and stored in the image memory 15 (steps T2 and T3).

As shown in FIG. 4, the image data stored in the image memory 15 is read out by the video output circuit 16 and converted into a video signal (step S7). Since the projection device 11 projects and outputs image data (step S8), the next image data is displayed and output on the screen 2 as shown in FIG. When the video output circuit 16 reads image data from the image memory 15 as described above, the read position depends on a switching setting described later.

When the operator 5 performs an input operation on the previous screen key 22 of the controller 12 (step S2), a processing operation for displaying and outputting the previous image data is executed (step S5). In this case, as shown in FIG. 6, the previous image data is read from the image storage medium 13 by the image reading circuit 14 and stored in the image memory 15 (step E1).
-T3), and thereafter, the previous image data is displayed and output on the screen 2 in the same manner as described above (steps S7, S8).

However, even if the image data is displayed on the screen 2 and presented to the viewer 4 as described above,
If a large number of are arranged in the front-rear direction, the viewer 4a in front may hinder the viewer 4b behind and may not be able to see the lower part of the screen 2 as shown in FIG. However, in the image display device 1 according to the present embodiment, in the above case, the lower part of the image data is displayed on the upper part of the screen 2 as desired by the operator 5 as shown in FIG. Can be.

That is, as shown in FIG. 4, when the operator 5 operates the switching key 23 of the controller 12 (step S3), a processing operation for switching the display state of the image data is executed (step S6). . In this case, FIG.
As shown in (1), it is first determined whether the current setting of the position at which the video output circuit 16 reads image data from the image memory 15 is a head position or an intermediate position (step P1), and this read position is determined as the head position. Then, the read position is updated to the intermediate position (step P2), and if the read position is determined to be the intermediate position, the read position is updated to the head position (step P3).

When the read position is set to the head position as described above, the video output circuit 16 sequentially reads a number of main scanning lines of the image data stored in the image memory 15 from the head position (step S7). As shown in FIG. 1A, the entire image data is displayed and output over the entire area of the screen 2 (step S8).

On the other hand, when the reading position is set at an intermediate position, the video output circuit 16 sequentially reads a large number of main scanning lines of the image data stored in the image memory 15 from the intermediate position. As shown, the lower part of the image data is displayed and output on the upper part of the screen 2.

For this reason, the image display device 1 of the present embodiment
Then, the lower part of the image data can be displayed on the upper part of the screen 2 as desired by the operator 5, so that even if the viewer 4b behind cannot visually recognize the lower part of the screen 2, the lower part of the image data is displayed on the viewer 4b. Can be presented, and as a result, the entire image data can be presented to all the viewers 4.

Moreover, in the image display device 1 of the present embodiment, the above-described operation of switching the display state of the image data is realized by switching the reading position of the image memory 15, so that the optical system is mechanically operated. There is no need to move the display, and the display state of the image data can be switched with a simple structure.

In particular, in the image display device 1 according to the present embodiment, since the projection device 11 projects and outputs the image data to the screen 2 disposed at the separated position, a large number of viewers 4
Can be displayed and output in a state in which the image data can be easily recognized, and the above-described operation of switching the display state of the image data effectively functions.

In the image display device 1 of the present embodiment, the still image data is supplied one by one from the image storage medium 13 to the projection device 11 in response to the manual operation of the controller 12, so that the operator 5 It is possible to display the image data one by one as desired, and to switch the display state of the image data each time.

In particular, when displaying image data one by one as described above, one of a large number of image data stored in the image storage medium 13 is copied to the image memory 15 and then used for display output. For example, if the image storage medium 13 is an MO
It is possible to satisfactorily display image data even on a large-capacity information storage medium having a low transfer rate as described above, and the operation of switching the display state of the image data can be easily realized.

The present invention is not limited to the above-described embodiment, but allows various modifications without departing from the scope of the invention. For example, in the above embodiment, the projection device 11 and the large screen 2 are used to present image data to a large number of viewers 4.
(Plasma Display Panel) or multi-stage CRT (Cat
hode-Ray Tube).

Also, in the above-described embodiment, a case where a large number of still image data are sequentially displayed and output one by one by a manual operation is exemplified. For example, a large number of still image data is automatically displayed and output automatically in a sequence. Alternatively, it is also possible to continuously display and output moving image data.

Further, in the above embodiment, it is assumed that, when the display state of the image data is switched, the display state is maintained even when the image data is switched to the next screen or the previous screen. However, for example, even if the state where the lower part of the image data is displayed on the upper part of the screen 2 is switched, the display state is automatically set to the default state when the image data is switched to the next screen or the previous screen. It is also possible to do so.

In the above embodiment, it is assumed that each part of the image display device 1 is formed as a dedicated hardware. However, for example, the computer can be operated by installing appropriate software on the image display device. It is also possible to realize each of the units, and it is also possible to realize a part by software and a part as hardware.

For example, the projection device 11 and the controller 12
An image display device (not shown) in which the image storage medium 13 and the like are connected to a computer is supplied with software including a predetermined program in an information storage medium such as an FD, thereby realizing the image display device and method of the present invention. In this case, the information storage medium supplies a plurality of image data registered in advance in the image storage medium 13 to the projection device 11, and the image supplied to the projection device 11 in response to a manual operation of the controller 12. A control program for switching data between the whole and the lower part may be stored as software.

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described below with reference to FIG. The same portions as those in the first embodiment described above with respect to the second embodiment are denoted by the same names and reference numerals, and detailed description thereof is omitted.

The image display device 31 of the present embodiment also has the configuration shown in FIG.
As shown in the figure, the image display system 32 is formed by combining with the screen 2 serving as a display screen in the same manner as the image display device 1 described above. Parameter setting circuit 3 as an adjusting means
4 has been added.

The parameter setting circuit 34 is connected to the controller 35 and the video output circuit 16. In response to a manual operation of the controller 35, the video output circuit 16 reads out the image data from the image memory 15. Is increased or decreased to change the range when the lower part of the image data is displayed and output.

For this reason, as shown in FIG. 9, an up key 36 and a down key 37 for increasing / decreasing the parameter of the image data reading position are added to the controller 35, and these keys 36 and 37 are manually operated. By operation, a parameter increase / decrease instruction is input to the parameter setting circuit 34 as data.

The parameter setting circuit 34 corresponding to the manual operation of the controller 35 increases or decreases the parameter of the read position of the video output circuit 16 by, for example, setting the parameter setting circuit 34 to a reference value for the default setting of the video output circuit 16. This is performed by adding or subtracting values.

In the configuration described above, the image display device 31 of the present embodiment also has the same configuration as the image display device 1 described above.
A large number of image data can be sequentially displayed and output on the screen 2 by the manual operation of the operator 5 and presented to a large number of viewers 4. The state in which the lower part of the image data is displayed on the upper part can also be switched.

However, the image display device 31 of the present embodiment
Thus, when the lower part of the image data is displayed on the upper part of the screen 2 as described above, the display range can be changed as desired. That is, as shown in FIG. 10, when the operator 5 manually operates the keys 36 and 37 of the controller 35 as desired (steps A1 and A2), the video output circuit 16 is correspondingly switched by the parameter setting circuit 34 to the image memory. The parameter of the position from which the image data is read from 15 is increased or decreased (steps A3 and A4).

As described above, when the parameter at the reading position is increased by the parameter setting circuit 34, the position at which the video output circuit 16 reads image data from the image memory 15 is close to the head position. The lower range of the image data to be displayed increases.

On the other hand, when the parameter at the reading position is reduced by the parameter setting circuit 34, the video output circuit 16
Since the position in the middle of reading image data from the image memory 15 departs from the head position, the lower range of the image data displayed on the upper portion of the screen 2 is reduced.

As described above, if the range of the lower portion of the image data displayed on the upper portion of the screen 2 is increased, the portion not displayed on the screen 2 is reduced. Can be easily recognized. Also, if the range of the lower part of the image data displayed on the screen 2 is reduced, the lower part of the image data displayed on the screen 2 will be raised.
The lower part of the image data can be surely presented to the viewer 4b behind.

[0063]

Since the present invention is configured as described above, it has the following effects.

In the image display method according to the first aspect of the present invention, when image data registered as a number of main scanning lines that are continuous in the sub-scanning direction is displayed and output on a substantially vertical large display screen, the image data is sequentially supplied. The main scanning lines are sequentially output in the sub-scanning direction to display image data, input of various manual operations is accepted, and the position at which the main scanning line of the image data is read in the sub-scanning direction in response to the manual operation is set. By switching between the head position and the middle position, by switching between a state in which the entire image data is displayed over the entire display screen and a state in which the lower part of the image data is displayed at the upper part of the display screen, Even when the image data is presented to a large number of viewers, even if the viewer behind cannot view the lower part of the image data, the lower part of the image data is displayed on the upper part of the display screen and presented to the viewers behind. It is possible, it is possible to come across the image data in all of a large number of viewers, can switch the display state of easily and satisfactorily image data. In the image display method according to the second aspect of the present invention, the middle position of the data reading to be switched and set is displaced in the sub-scanning direction so that the entire image data is displayed over the entire area of the display screen. by the lower part of the image data is to switch between a state to be displayed, it is possible to switch the display state of easily and satisfactorily image data, it is possible to increase or decrease the bottom of the display range of the image data
You.

The third aspect of the present invention provides the first and second aspects.
The image display method according to claim 1, wherein a lower range of the image data displayed at an upper portion of the display screen is changed in accordance with a manual operation, so that an image displayed at an upper portion of the display screen as desired. Since the range of the lower part of the data can be increased or decreased, it is possible to present the lower part of the image data in a state where the entire image can be easily recognized, or to present the lower part more easily to the viewer behind. .

According to a fourth aspect of the present invention, there is provided an image display device, comprising: an image display means for displaying and outputting image data on a substantially vertical large display screen; an image storage means in which a plurality of image data are registered in advance; Image supply means for supplying image data registered in the image storage means to the image display means,
Manual operation means for receiving various manual operations, and display control means for switching the image data supplied from the image storage means to the image display means to the whole and the lower part in response to the manual operation of the manual operation means. The image storage means, wherein the image data is registered as a number of main scanning lines continuous in the sub-scanning direction, the image display means,
The main scanning lines sequentially supplied are sequentially output in the sub-scanning direction to display image data, and the display control means sets the position at which the image supply means reads the main scanning lines of the image data from the image storage means. By switching between the head position and the middle position in the scanning direction, even when the rear viewer cannot visually recognize the lower part of the image data when presenting the image data to many viewers, the lower part of the image data is displayed. Since it can be displayed at the top of the display screen and presented to the viewers behind, the entire image data can be presented to all of the many viewers, and the display state of the image data can be easily displayed with a simple structure. Can be switched. In the image display device according to the fifth aspect of the present invention, the image storage unit registers the image data as a number of main scanning lines that are continuous in the sub-scanning direction, and the image display unit stores the sequentially supplied main scanning lines. The lines are output in order in the sub-scanning direction to display image data, and the display control unit sets a position where the image supply unit reads a main scanning line of image data from the image storage unit as a head position in the sub-scanning direction. The range adjusting means switches the middle position of the data reading set by the display control means in the sub-scanning direction, thereby switching the display state of the image data favorably with a simple structure. And the display range below the image data can be increased or decreased .

The invention according to claim 6 is the invention according to claims 4 and 5.
The image display device according to the above, further comprising a range adjustment unit that changes a lower range of the image data to be switched and set by the display control unit in accordance with the manual operation of the manual operation unit, If desired, the range of the lower part of the image data displayed on the upper part of the display screen can be increased or decreased, so that the lower part of the image data can be presented to the viewer in the rear in a state in which the entire image can be easily recognized, or the lower part can be displayed. Can be presented easily.

According to a seventh aspect of the present invention, in the image display device according to the fifth aspect , the image storage means has registered therein image data as a number of main scanning lines continuous in the sub-scanning direction. The image display means displays the image data by sequentially outputting the main scanning lines sequentially supplied in the sub-scanning direction, and the display control means determines that the image supply means outputs the main scanning lines of the image data from the image storage means. Is switched between the start position and the middle position in the sub-scanning direction in the
The display state of image data can be properly switched with a simple structure.

The invention according to claim 8 provides the invention according to claims 4 to 5
In the image display device described in the above, the image storage means registers image data as a number of main scanning lines continuous in the sub-scanning direction, and the image display means stores the main scanning lines sequentially supplied in the sub-scanning direction. The display control means outputs the image data in order in the scanning direction, and the display control means sets a position at which the image supply means reads a main scanning line of the image data from the image storage means as a head position and a middle position in the sub-scanning direction. The range adjusting means can switch the display state of the image data with a simple structure by displacing, in the sub-scanning direction, the middle position of the data reading set by the display control means. At the same time, the display range below the image data can be increased or decreased.

The ninth aspect of the present invention relates to the fourth to eighth aspects.
The image display device according to any one of claims 1 to 3, wherein the display screen includes a screen arranged at a position separated from the image display unit, and the image display unit includes the display screen arranged at a position separated from the image display unit. By projecting and outputting the image data, the image data can be displayed and output in a state where many viewers can easily recognize it, and the function of allowing the rear viewer to confirm the lower part of the image data is effectively used. be able to.

The tenth aspect of the present invention is the fourth aspect of the present invention.
9. The image display device according to any one of 9 , wherein the image supply unit supplies image data one by one from the image storage unit to the image display unit in response to a manual operation of the manual operation unit. Thus, the still image data can be displayed one by one as desired by the operator, and each time, the state in which the entire image is displayed and the state in which the lower part is displayed can be switched.

According to an eleventh aspect of the present invention, in the image display device according to the tenth aspect , the image supply means reads out image data one by one from the image storage means, and the image readout means. Image holding means for temporarily holding one piece of image data read by the above, and image output means for reading one piece of image data held by the image holding means from a predetermined sub-scanning position. ,
The display state of the image data can be satisfactorily controlled with a simple structure.

The information storage medium according to the twelfth aspect of the present invention
Image storage means in which image data is registered as a number of main scanning lines continuous in the sub-scanning direction, image display means for outputting sequentially supplied main scanning lines in the sub-scanning direction in order to display image data, and manual Supplying a plurality of image data registered in advance in the image storage means to the image display means on an information storage medium storing software readable by a computer to which the operation means is connected; The position at which the main scanning line of the image data is read from the image storage means is switched between the head position and the middle position in the sub-scanning direction in response to the manual operation of the operation means, and the image data supplied to the image display means is set. By switching between the whole and the lower part, a program for causing the computer to execute is stored in the information storage medium of the present invention. When a computer to which the image display means and the manual operation means are connected is read and the corresponding processing operation is executed, when the image data is presented to a large number of viewers, the rear viewer can view the image data. Even when the lower part cannot be visually recognized, the lower part of the image data can be displayed on the upper part of the display screen and presented to the viewers behind, so that the entire image data can be presented to all of the many viewers. It is possible to easily and satisfactorily switch the display state of the image data. In the information storage medium according to the present invention, a position at which a main scanning line of image data is read from the image storage means is switched between a head position and a middle position in the sub-scanning direction in response to manual operation of the manual operation means. A program for causing the computer to execute setting and shifting the data reading halfway position to be set in the sub-scanning direction and switching the image data supplied to the image display means between the whole and the lower part is stored. By doing so, it is possible to easily and satisfactorily switch the display state of the image data,
The display range below the image data can be increased or decreased .

[Brief description of the drawings]

FIG. 1 is a schematic perspective view illustrating a use state of an image display system that includes an image display device according to a first embodiment of the present invention;

FIG. 2 is a block diagram illustrating an image display system.

FIG. 3 is a plan view showing an appearance of a controller which is a manual operation means.

FIG. 4 is a flowchart illustrating a main routine of an image display method of the image display device.

FIG. 5 is a flowchart illustrating a subroutine of a next screen display process.

FIG. 6 is a flowchart showing a subroutine of a previous screen display process.

FIG. 7 is a flowchart illustrating a subroutine of a display switching process.

FIG. 8 is a block diagram illustrating an image display system according to a second embodiment of the present invention.

FIG. 9 is a plan view showing the appearance of the controller.

FIG. 10 is a flowchart illustrating a subroutine of a range control process.

[Explanation of symbols]

1, 31 image display device 2 screen as display screen 3, 32 image display system 4 viewer 5 operator 11 projection device as image display means 12 controller as manual operation means 13 image storage medium as image storage means 14 image Image readout circuit as readout means 15 Image memory as image holding means 16 Video output circuit corresponding to image output means and display control means

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G09G 5/00 G06F 3/14 G09G 3/36 G09G 5/34 H04N 5/74

Claims (13)

(57) [Claims] When outputting image data registered as a number of main scanning lines that are continuous in the sub-scanning direction on a large vertical display screen, the sequentially supplied main scanning lines are sequentially arranged in the sub-scanning direction. To display the image data, accept input of various manual operations, and switch the reading position of the main scanning line of the image data between the head position and the middle position in the sub-scanning direction in response to the manual operation. An image display method for switching between a state in which the entire image data is displayed in the entire area of the display screen and a state in which the lower part of the image data is displayed at the upper part of the display screen. 2. When image data registered as a large number of main scanning lines that are continuous in the sub-scanning direction is displayed and output on a substantially vertical large display screen, the sequentially supplied main scanning lines are sequentially arranged in the sub-scanning direction. To display the image data, accept input of various manual operations, and switch the reading position of the main scanning line of the image data between the head position and the middle position in the sub-scanning direction in response to the manual operation. A position in the middle of data reading to be switched is displaced in the sub-scanning direction, and a state in which the entire image data is displayed in the entire area of the display screen and a state in which the lower part of the image data is displayed in the upper part of the display screen. An image display method that switches between. 3. An image data displayed on an upper portion of the display screen.
Change the lower area of the data in response to manual operation
An image display method according to any one of claims 1 and 2, wherein
Law. 4. An image data is displayed on a large, substantially vertical display screen.
Image display means for displaying and outputting, and image storage means in which a plurality of image data are registered in advance
And the image data registered in the image storage means
Image supply means for supplying to the display means, manual operation means for receiving various manual operations, and image storage means corresponding to manual operation of the manual operation means
The image data supplied to the image display means from
Display control means for switching to a lower part , wherein the image storage means is configured to store the image data continuously in the sub-scanning direction.
Are registered as a number of main scanning lines, and the image display means scans the sequentially supplied main scanning lines in the sub-scanning direction.
Display image data output sequentially in a direction, the display control means, the image stored in the image supply device
Sub-scanning the position where the main scanning line of the image data is read from the means
Image display device that switches between the head position and the middle position in the direction
Place. 5. Image data is displayed on a large, substantially vertical display screen.
Image display means for displaying and outputting, and image storage means in which a plurality of image data are registered in advance
And the image data registered in the image storage means
Image supply means for supplying to the display means, manual operation means for receiving various manual operations, and image storage means corresponding to manual operation of the manual operation means
The image data supplied to the image display means from
Display control means for switching to a lower part , wherein the image storage means is configured to store the image data continuously in the sub-scanning direction.
Are registered as a number of main scanning lines, and the image display means scans the sequentially supplied main scanning lines in the sub-scanning direction.
Display image data output sequentially in a direction, the display control means, the image stored in the image supply device
Sub-scanning the position where the main scanning line of the image data is read from the means
Switching between the head position and the middle position in the direction, and the range control unit switches and sets the display control unit.
Image table that displaces the middle position of data reading in the sub-scanning direction
Indicating device. 6. An image data which is switched and set by said display control means.
The lower area of the data corresponds to the manual operation of the manual operation means
The range adjusting means vary, and further comprising 請
6. The image display device according to claim 4 or claim 5. 7. The image storage means according to claim 1, wherein said image data is
Registered as a number of main scanning lines
The image display means scans the sequentially supplied main scanning lines in the sub-scanning direction.
Display image data output sequentially in a direction, the display control means, the image stored in the image supply device
Sub-scanning the position where the main scanning line of the image data is read from the means
6. A switching setting between a head position and a middle position in the direction.
Image display device. 8. The image storage means according to claim 1, wherein said image data is
Registered as a number of main scanning lines
The image display means scans the sequentially supplied main scanning lines in the sub-scanning direction.
Display image data output sequentially in a direction, the display control means, the image stored in the image supply device
Sub-scanning the position where the main scanning line of the image data is read from the means
Switching between the head position and the middle position in the direction, and the range control unit switches and sets the display control unit.
Claims: Displacing a middle position of data reading in the sub-scanning direction.
6. The image display device according to 4 or 5. 9. The image display device according to claim 8, wherein the display screen is provided from the image display means.
The image display means comprises a screen arranged at a separated position, and the image display means comprises a screen arranged at the separated position.
The image data is projected and output on a display screen.
An image display device according to any one of the preceding claims. 10. The image supply means includes :
The image from the image storage means in response to the manual operation of the step;
No claim 4 supplies the image data to the display means one by one.
10. The image display device according to any one of claims 9 to 9. 11. The image supply means for reading out image data one by one from the image storage means.
Image reading means, and one image data read by the image reading means;
Image holding means for temporarily holding, and one image data held in the image holding means in a predetermined
The image display device according to claim 10, further comprising: an image output unit that reads out from a sub-scanning position . 12. A method according to claim 1, wherein the image data is continuous in the sub-scanning direction.
Image storage means registered as the number of main scanning lines
The supplied main scanning lines are sequentially output in the sub-scanning direction to
Image display means for displaying data and manual operation means are connected.
Contains computer readable software
In it are information storage medium is a plurality of images de that has been previously registered in the image storage unit
Data to the image display means, and the image storage means corresponding to the manual operation of the manual operation means.
The position where the main scanning line of the image data is read from the column
The image is displayed by switching between the head position and the middle position
Switching the image data supplied to the means between the whole and the bottom
Program rating for executing Rukoto, to the computer
An information storage medium characterized by being stored. 13. A method according to claim 8, wherein the image data is continuous in the sub-scanning direction.
Image storage means registered as the number of main scanning lines
The supplied main scanning lines are sequentially output in the sub-scanning direction to
Image display means for displaying data and manual operation means are connected.
Contains computer readable software
In it are information storage medium is a plurality of images de that has been previously registered in the image storage unit
Data to the image display means, and the image storage means corresponding to the manual operation of the manual operation means.
The position where the main scanning line of the image data is read from the column
Switch between the head position and the middle position of the
The middle position of the data reading to be
The image data supplied to the image display means
Program rating for executing switching to the said computer
An information storage medium characterized by being stored.