JPH03204686A - Picture information display device - Google Patents

Abstract

PURPOSE:To carry out an agreeable presentation by receiving a picture and displaying the whole of the picture, with a first display device and only a main picture out of the pictures by means of a second display device. CONSTITUTION:Only picture information used for the presentation is displayed on a large-sized display 13, and a menu, a message, a cursor, etc., are displayed on only a monitor 14 for a presenter, so that an audience pays attention on the contents of a screen without being disturbed by the menu, etc. While, the presenter can advance the presentation while always confirming the whole of the picture information displayed on the large-sized display 13, on the monitor 14, and an operational menu and the message are displayed on the monitor 14. Thus, a comfortable presentation is carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image information display device suitable for presentations performed in front of an audience, such as conferences and presentations at academic conferences.

[Conventional technology]

Conventionally, slide projectors and overdrive projectors (○HP) have been used as image information display devices for presentation purposes. 2. Description of the Related Art There are known devices that display images created using a computer on a large projection display or the like.

With such devices, when carrying out a presentation, it is necessary for the presenter to input instructions such as switching screens into the device as the presentation progresses. The presenter uses a pointing device such as a mouse to move a selection cursor onto the menu and enter input into the device.

However, displaying a menu or a selection cursor on a large display for presentations has the problem of giving unnecessary information to the audience and hindering their understanding of the presentation content.

Therefore, with conventional image information display devices, it is possible to separately output the presentation image and an image with menus and selection cursors combined with this image, and the presentation image is displayed on a large display and the menu etc. are combined with it. The images were displayed on a monitor screen provided for the presenter. This allows presentations to be made by displaying screens that are not displayed, such as menus, on a large display, etc., and the presenter can view the menu displayed on the monitor while checking the content displayed on the large screen on a dedicated monitor screen. It was possible to make a selection using a mouse or the like and give instructions to the device to change the screen, etc.

[Problem to be solved by the invention]

In the conventional technology mentioned above, the monitor screen for one presenter displays a menu, etc. overlaid on top of the image information displayed on the large display, so the presenter can check the image information that is hidden under the menu. The problem was that I couldn't do it.

Also, depending on the color of the image information that is the background of the menu etc.
One presenter said that the menu etc. would be difficult to see.
When creating presentation images, it is necessary to perform cumbersome tasks such as specifying the color of menus and the like for each image one by one. Furthermore, in order to synthesize menus and the like with image information, it is necessary to use high-speed logic circuits or switching elements, which poses the problem of increased costs.

An object of the present invention is to display image information that is meaningful only to the presenter, such as menus for the presenter to give instructions to the device and messages from the device to the presenter, without displaying them on the presentation display. To provide an image information display device that can be displayed only on a monitor and in which information such as a menu does not overlap presentation image information on a presenter's monitor.

[Means to solve the problem]

In order to achieve the above object, the present invention includes an image generating means for generating an image consisting of a main image and an additional image placed side by side with the main image, and a scan rate capable of displaying the entire image, which receives the image. a first display device;

a second display device receiving the image and having a scan rate capable of displaying only the main image among the images;
Provided is a first image information display device characterized by having at least the following.

Preferably, the image generating means includes means for adjusting at least one of the scan rate of the first display device and the scan rate of the second display device.

Moreover, the present invention aims to achieve the above object.

An image generation section that generates an image consisting of a main image and an additional image arranged side by side with the main image, and a blanking processing section that performs blanking processing on the additional image portion of the image generated by the image generation section. an image generating means that outputs an image generated by the section and an image subjected to blanking processing by the blanking processing section; a first display device that receives and displays the image generated by the image generation section; and a blanking processing section. A second image information display device is provided, comprising at least a second display device that receives and displays an image on which a section has performed blanking processing.

In addition, in order to achieve the above-mentioned purpose, the display period includes a period during which the image generation section and one image generation section that generate and output an image consisting of a main image and an additional image placed side by side with the main image output images. A synchronization signal for outputting a first display synchronization signal and a second display synchronization signal whose display period includes only the period in which the image generation section outputs the main image part out of the period in which the image generation section outputs the image. a first image generating unit, the synchronizing signal generating unit outputs the image generated by the image generating unit;
a first display device that displays an image in synchronization with a display synchronization signal; and a second display that displays an image generated by the image generation section in synchronization with a second display synchronization signal outputted by the synchronization signal generation section. Provided is a third image information display device characterized by having at least the following.

The image generating means may include a cursor image generating means for generating a cursor image by superimposing it on the image, and a means for suppressing generation of the cursor image in an area other than the additional image portion of the cursor image generating means. desirable.

Further, it is preferable that the additional image is an image for inputting an operation instruction to the image information display device, or an image showing information related to the operating state of the image information display device.

[Effect]

According to the first image information display device according to the present invention, the image generating means generates an image consisting of a main image and an additional image arranged side by side with the main image. Also, according to their respective scan rates, the first display device receives the image and displays the entire image, and the second nice play device displays only the main image of the image.

Further, according to the second image information display device according to the present invention,
In the image generation means, the image generation section generates an image consisting of a main image and an additional image arranged side by side with the main image. The blanking processing unit performs blanking processing on the additional image portion of the image generated by the image generation unit. Meanwhile, the first display device receives and displays the image generated by the image generation section,
The second display device receives and displays the image that has been subjected to blanking processing by the blanking processing section.

Furthermore, according to the third image information display device according to the present invention,
In the image generation means, the image generation section generates and outputs an image consisting of a main image and an additional image placed side by side with the main image, and the synchronization signal full-generation image generation section includes the period for outputting the image in its display period. The first display synchronization signal and the second display synchronization signal whose display period includes only the period in which the image generation section outputs the main image portion out of the period in which the image generation section outputs the image are output. On the other hand, the first display device displays the image generated by the image generation section in synchronization with the first display synchronization signal output by the synchronization signal generation section, and the second display device displays the image generated by the image generation section. is displayed in synchronization with the second display synchronization signal output by the synchronization signal generator.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of an image information display device according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a diagram showing the configuration of an image information display device as an embodiment of the present invention.

In FIG. 1, the device is connected to a system bus 3, a CPU (central processing unit) 1. System memory 2, a large external memory 18, such as an optical disk and its drive. CRT (cathode ray tube) controller 4.
An interface 12 of an instruction input device 15 such as a mouse, digitizer or joystick, a frame memory 5 connected to a CRT controller 4, a cursor generation circuit 1o, and a parallel-serial conversion circuit 6 connected in series from the output of the frame memory 5, respectively. ．． Cursor synthesis circuit 7. LUT (lookup table)8. Digital/analog (D/A) converter9. Cursor control circuit 1 which controls the cursor signal generated by the cursor generation circuit 10 and sends it to the cursor synthesis circuit 7] Back side that receives the image signal output from the 2D/A converter 9 and the synchronization signal output from the CRT controller, respectively. Or a large display 13 and CRT using front projection type etc.
It is composed of a small monitor 14 made by E.g.

FIG. 2A shows a method of storing data in the frame memory 5, in which data is stored in an address space 20 of the memory corresponding to the image space according to horizontal and vertical addresses of pixels. The CRT controller 4 adjusts the scanning direction of the large display 13 and monitor 14, and controls the frame memory 5.
The address and timing are controlled so that the data within is read horizontally one row at a time in the rask direction.

The data read from frame memory 5 is parallel/
After parallel-to-serial conversion in the serial (P/S) circuit 6 and synthesis with the cursor signal in the cursor synthesis circuit 7, the L
Input to UT8. The LUT 8 is composed of a high-speed RAM (random access memory), etc., and converts the coated color information into luminance value data of three colors, R2O, B (red, green, blue). The output signal of LUT 8 is converted to an analog value by D/A converter 9 and displayed on large display 13.
and is supplied to the monitor 14.

In FIG. 2(A), the address space 20 of the frame memory 5 is divided into a main information storage area 21 and an auxiliary information storage area 22. The auxiliary information storage area 22 stores information such as operation menus for the presenter to give instructions to the device and messages from the device to the presenter.

FIG. 2(B) shows an example of the display screen of the large display 13, and shows the main information storage area 2 of the frame memory 5.
The scan rate of the display 13 is set so that the image information 23 stored in the display I3 is displayed on the screen of the display I3.

FIG. 2 (CG) shows an example of the display screen of the monitor 14. The monitor 14 stores image information 24 whose scan rate is stored in the main information storage area 21, as well as menu information 25a and 25b for inputting instructions to the device stored in the auxiliary storage area 22. It is assumed that message information 27 is displayed at the same time. Furthermore, a cursor 26 for menu selection is also displayed. The cursor 26 moves on the screen according to the movement instructed by a pointing device such as a mouse, and for example, to call up the next screen, move the cursor to the next screen and click the mouse button. The presenter can give operation commands to the device.

Note that the above example shows only one example of the command.

Many other commands such as random search are possible. In order to be able to select from a wide variety of commands,
All you have to do is display the commands in a hierarchical manner, or add an command menu to step through the menus. In addition to the above-mentioned example, the message may also include, for example, the title of the screen currently being displayed or the manuscript for presentation.

FIG. 3 is a diagram showing the timing of image signals to be displayed. V5ync and H5ync are vertical and horizontal synchronization signals generated by the CR, T controller 4 and sent to the large display 13 and monitor 14. Although FIG. 3 shows separate syncs in which the two synchronization signals are independent, a composite synchronization signal may be used. The auxiliary information is read out from the image signal following the vertical retrace period, and then the main information is output.

FIG. 4 is a diagram showing a detailed configuration of the cursor control circuit 11 such as the cursor generation circuit 1o shown in FIG.

The cursor generation circuit 10 includes a cursor buffer 101 and a parallel-serial conversion circuit 102, and the cursor control circuit 11 includes an MMV (mono multivibrator) 1.
11.112 and D flip-flop 113. Orgate 114. It is composed of an AND gate 115.

The cursor buffer 101 is a memory having the size of the cursor or the size of the entire display screen, and is
According to a cursor control signal from the controller 4, data is read out at the timing when the cursor is to be displayed on the screen. The parallel-serial conversion circuit 102 converts the data read from the cursor buffer 101 into
It is converted into a dot rate cursor signal and sent to the cursor control circuit 11.

The MMVs 111 and 112 delay the vertical synchronizing signal sent from the CRT:I controller 4, and generate pulses synchronized with the display timing of auxiliary information, as shown in FIG. The output of the MMV 112 is sent to the ant gate 115 via the OR gate 114 after being time-aligned with the horizontal synchronizing signal by the D flip-flop 113. As a result, a cursor signal appears at the output of the AND gate 115 only during the display period of the auxiliary information, and the cursor signal is synthesized with the image signal in the cursor synthesis circuit 7.

The OR gate 114 is provided for the purpose of displaying a cursor on the main information display based on instructions from a mouse or the like, so that the presenter can use the cursor like a conventional pointing stick. This is what makes it possible.

As described above, according to this embodiment, only the image information used for the presentation is displayed on the large display 13, including menus and messages.

Since the cursor and the like are displayed only on the presenter's monitor 14, the audience can concentrate on the content on the screen without being disturbed by menus and the like.

In addition, the presenter can proceed with the presentation while constantly checking the entire image information displayed on the large display, and the operation menu and messages are displayed on the monitor, allowing for a comfortable presentation. be able to.

Furthermore, because the menu does not become invisible depending on the content of the presentation screen, there is no hassle when creating the screen.Furthermore, the same number of colors as the main information can be used for menus, etc., making the menu easy to read. You can configure the screen.

Note that setting the scan rate of a large display or monitor is achieved by adjusting the output amplitude of the vertical oscillation circuit in a normal display, so there is no need for any special @processing, and it is possible to set the scan rate using conventional image information processing. Cost reduction can be achieved compared to other equipment.

Further, in this embodiment, information such as a menu is displayed at the top of the screen, but it may be displayed at the bottom of the screen, or at both the top and bottom.

Further, the auxiliary information may be displayed in a vertical area such as the right end or the left end, and in this case, the data storage address in the frame memory is changed, and the V 5ync shown in FIGS. 3 and 4, H5ync may be replaced with H5ync and memory read clock, respectively.

Further, in this case, the scan rate is adjusted by adjusting the amplitude of horizontal scanning.

Furthermore, in the above example, the main information and the auxiliary information are lined up without any gaps, but for example, when using the image information display device of this embodiment in a place where the power supply voltage is unstable, the scan amplitude of the large display may fluctuate. In order to prevent the auxiliary information from appearing in the main information, some blank parts may be provided between the main information and the auxiliary information.

FIG. 5 is a diagram showing another example of a method of storing data in a frame memory.

In FIG. 5, a main information storage area 51 and an auxiliary information storage area 52 are provided for the entire address space 50. The difference from the method shown in FIG. 2 described above is that each address size in the horizontal and vertical directions of the memory is larger than the number of pixels on the display screen. This allows the main information storage area 51 to be moved within the memory address space 50 to scroll the image.

Also, by the data storage method shown in FIG. 5, the data storage method shown in FIG.
, (C) can be obtained using a well-known multi-window technique or the like.

Next, a second embodiment of the image information display device according to the present invention will be described using FIG. 6.

FIG. 6 is a diagram showing the configuration of the image information display device according to this embodiment.

In the figure, the same parts as in the first embodiment (FIG. 1) are given the same reference numerals, and their explanation will be omitted. The configuration shown in FIG. 6 differs from the configuration according to the first embodiment in that the output of the D/A converter 9 is passed through the gate circuit 16 and then the large display 13
It is in the place that leads to a.

The gate circuit 16 has a configuration as shown in FIG. 7, for example, and delays the vertical synchronizing signal in the MMV 161, 162 and the D flip-flop 163 to generate a gate pulse indicating the display period of auxiliary information.

The gate pulse is guided to the switch 165, and the switch 165 is operated so as to maintain the R, G, and B image signals at the blank level voltage generated by the blank level generation circuit 164 during the display period of the auxiliary information. Switch.

As described above, according to this embodiment, the image signal output to the large display 13a is maintained at a blank level during the display period of information such as a menu, so that the above-mentioned information is not visible to the audience. can concentrate on the content of the presentation. On the other hand, the presenter can always check the entire presentation image on the dedicated monitor 14 and can comfortably operate the apparatus using the menu. Furthermore, since the menu does not become invisible depending on the content of the presentation image, there is no need to worry about preparing for the presentation.

Further, the switch 165 used in the gate circuit 16 is
Since the switching operation can be performed in vertical or horizontal periods or twice, there is no need for high-speed elements that perform switching in units of dots, and the cost increase in this part is small.

Further, in this embodiment, it is also possible to use a display having the same scan rate as the monitor 14 as the large display 13a. However, the screen of the large display 13a-
In order to display the presentation image on the cup and use the screen effectively, it is desirable to match the scan rate of the large display 13a to the presentation image. At this time, the advantage of using the configuration shown in FIG. 6 is that even if the scan rate of the large display 13a changes due to fluctuations in the power supply voltage, for example, menus etc. can be prevented from appearing.

Next, a third embodiment of the image display device according to the present invention will be described using FIG. 8.

FIG. 8 is a diagram showing the configuration of the image information display device according to this embodiment.

In this figure, the same parts as in FIG. 1 are given the same reference numerals, and their explanation will be omitted. The configuration shown in FIG. 8 differs from the configuration of the first embodiment (FIG. 1) in that the synchronization signal generated by the CRT controller 4 is delayed by a delay circuit 17 and then sent to the large display 13a. .

The delay circuit 17 is configured by, for example, connecting MMVs in two stages, and as shown in FIG.
The vertical synchronizing signal V5ync generated in is delayed for a certain period of time to obtain V5ync2, which is supplied as the vertical synchronizing signal to the large display 13a.

FIG. 10 shows an example of a display screen obtained by this embodiment, and is an example where the large display 13a and the monitor 14 have the same scan rate. FIG. 10(A) is an example of the display screen of the large display 13a,
Image information for presentation is displayed at the top, and the bottom part is solid black during the blank period.

FIG. 10(B) shows the screen of the monitor 14, in which information such as a menu is displayed at the top, and the same image as that displayed on the large display 13a is displayed at the bottom.

As described above, according to this embodiment, information such as a menu is not displayed on the large display, so the audience can concentrate on the content of the presentation.

On the other hand, presenters can use a dedicated monitor to constantly check the entire image displayed on the large display and operate the device while viewing menus and other information displayed on the monitor. You can do it comfortably.

Furthermore, since information such as a menu cannot be obscured by the image content of the presentation, the time and effort required to prepare the presentation described above is saved.

Also, in the above embodiment, the case where information such as a menu is displayed at the top of the monitor has been explained, but the menu etc. may also be displayed at the bottom, and in this case, the vertical synchronization signal supplied to the monitor is delayed. Let them do it.

It is also possible to display a menu or the like on the left or right end of the monitor screen, in which case the delay circuit delays the horizontal synchronization signal.

Note that the scan rate of the large display may be adjusted in order to prevent the black blank level signal shown in FIG. 10(A) from being output to the large display.

In each of the above-mentioned embodiments, the case where one large display for presentations and one monitor for the presenter was used was explained as an example. A stand may be provided.

Furthermore, monitors may be provided not only for presenters but also for moderators, chairpersons, and other assistants.

Note that, once the scan rate of a large display is adjusted to suit the form of the display screen, there is no need to readjust it thereafter. However, in cases where the format of the display screen is frequently changed, it is desirable to provide an interface circuit for changing the scan rate of the large display so that it can be controlled from the CPU, thereby improving the usability of the device.

As described above, in each of the embodiments, in an image information display device for a presentation given in front of an audience, the scan rates of the large display for the audience and the monitor for the presenter are different, so that the presenter can easily Information such as menus for giving instructions to the device and messages from the device to the presenter can be displayed only on the monitor and not on the large display.
The audience's attention to the content of the presentation is not interrupted.

In addition, the presenter can perform the presentation while constantly checking the entire image information displayed on the large display, and since the image content of the presentation will not obscure information such as menus, the presenter can use the menu at the stage of presentation preparation. It is possible to provide an easy-to-use image information display device at low cost without having to worry about the location or color arrangement of information such as.

Further, by providing a blanking means for the image signal supplied to the large display, information such as a menu can be displayed only on the monitor screen. This allows the audience to concentrate on the presentation content without being distracted by information such as menus, while the presenter can operate the device using menus while viewing the entire image displayed on the large display on the monitor. , and be able to make comfortable presentations.

Furthermore, since the menu does not become invisible depending on the image content of the presentation, there is no need to worry about how to display information such as menus when preparing for a presentation.

Furthermore, by shifting the phases of the synchronization signals supplied to the large display and the monitor, information such as a menu can be prevented from appearing on the large display. This prevents the audience from being distracted by the menu or the like and preventing them from understanding the presentation content.

Further, the presenter can proceed with the presentation while constantly checking the entire presentation image information on the monitor, and can operate using information such as menus.

Furthermore, since menus and the like do not become invisible depending on the content of the presentation, it is possible to provide an image information device that is easy to use since the user is freed from the hassle of preparing for a presentation.

〔Effect of the invention〕

As described above, according to the present invention, image information that is meaningful only to the presenter, such as a menu for the presenter to give instructions to the device or a message to the presenter, is not displayed on the presentation display. , it is possible to provide an image display device that can display presentation image information only on a monitor display for a presenter without overlapping with presentation image information.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an image information display device according to a first embodiment of the present invention, FIG. 2 is an explanatory diagram for explaining the operation of the image information display device, and FIG. 3 is a block diagram showing the configuration of an image information display device according to a first embodiment of the present invention. 4 is a block diagram showing the configuration of the cursor generation section and the cursor control section. FIG. 5 is an explanatory diagram showing another method of storing data in the frame memory. FIG. FIG. 7 is a block diagram showing the configuration of the image information display device according to the second embodiment, FIG. 7 is a block diagram showing the configuration of the blanking means, and FIG. 8 is a block diagram showing the configuration of the image information display device according to the third embodiment of the present invention. Block diagram showing the configuration, No. 9
The figure is a time chart showing the operation of the image information display device, and FIG. 10 is an explanatory diagram showing the display screen of the image information display device. 4...CRT controller,

Claims (1)

[Claims] 1. Image generating means for generating an image consisting of a main image and an additional image placed side by side with the main image; and a first display that receives the image and has a scan rate capable of displaying the entire image. An image information display device comprising: a second display device that receives the image and has a scan rate capable of displaying only the main image among the images. 2. An image generation unit that generates an image consisting of a main image and an additional image arranged side by side with the main image, and a blanking processing unit that performs blanking processing on the additional image portion of the image generated by the image generation unit, an image generating unit that outputs an image generated by the image generation unit and an image subjected to blanking processing by the blanking processing unit; a first display device that receives and displays the image generated by the image generation unit; An image information display device comprising at least a second display device that receives and displays an image that has been subjected to blanking processing by a processing section. 3. An image generation unit that generates and outputs an image consisting of a main image and an additional image arranged side by side with the main image, and a first display synchronization signal whose display period includes a period during which the image generation unit outputs an image. and a synchronization signal generation unit that outputs a second display synchronization signal whose display period includes only the period in which the image generation unit outputs the main image part out of the period in which the image generation unit outputs the image. a first display device that displays the image generated by the image generation section in synchronization with a first display synchronization signal outputted by the synchronization signal generation section; An image information display device comprising at least a second display device that displays images in synchronization with a second display synchronization signal output by the section. 4. The image information display device according to claim 1, wherein the image generating means includes means for adjusting at least one of the scan rate of the first display device and the scan rate of the second display device. An image information display device comprising: 5. The image information display device according to claim 1, 2, 3 or 4, wherein the image generating means includes a cursor image generating means for generating a cursor image by superimposing it on the image, and a cursor image generating means for generating a cursor image by superimposing it on the image; An image information display device comprising: means for suppressing generation of a cursor image in areas other than the additional image portion. 6. The image information display device according to claim 1, 2, 3, 4, or 5, wherein the additional image is an image for inputting an operation instruction to the image information display device. . 7. The image information display device according to claim 1, 2, 3, 4, 5 or 6, characterized in that the additional image is an image showing information related to the operating state of the image information display device. image information display device.