JPH11237866A - Image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an electronic presentation system which is flexibly adaptive to the state in a lecture and gives a high degree of freedom of a lecturer by providing a touch panel on the screen of an image display device as a terminal for the lecturer and displaying image data in a memory for image display on more than one display devices. SOLUTION: A display controller 9 displays display data, stored in a 1st image memory 7, on a 1st display device 14 for an attendance and controls a mixer 13 to put display data of the 1st image memory 7 and a 2nd image memory 8 one over the other, thereby displaying the resulting display data on a 2nd display device 15 as the terminal for the lecturer. The terminal for the lecturer comprises the 2nd display device 15 and touch panel 16 and image data on the 1st display device 14 can be switched at an arbitrary point of time in the lecture by operating the touch panel 16. Consequently, the lecturer is able to control the display system in addition to contents displayed for the attendance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal projector or an overhead projector (OHP) device using an information device such as a personal computer, that is, an electronic presentation system.

[0002]

2. Description of the Related Art Liquid crystal projectors and OHP devices using information devices such as personal computers are conventionally known. Usually, in a presentation system using a personal computer that is frequently used, the contents displayed by presentation software are one content.
A general method is to create a plurality of pages for each page and display them while reproducing them in order. In this case, the personal computer stores, in a hard disk device or the like provided therein, each page in the file in which the image data for presentation prepared in advance is stored.
It controls the reading of the image data to be displayed and the image data to be displayed to the image display memory in order and for display.
This electronic presentation system can only display previously prepared contents, similarly to the conventional method of projecting contents printed on an OHP transparent sheet by an OHP device. For this reason, you cannot use the flexible technique of writing notes on the spot, clarifying points of interest, and proceeding with the lecture during the lecture.

There is also known a method of pointing a point with a "stick" or "laser beam" used to focus the attention of a listener during a lecture. In this method, a point is designated on a magnified and projected screen, or a point is designated by a display effect of software for creating presentation material. However, when the method using software is adopted, the procedure becomes too coherent, and there is a drawback that an impression lacking in flexibility and flexibility is easily received. As for the display during a lecture, an image information display device that sends a message or data from the listener to the speaker and displays the message or data only on the display device for the lecturer has been proposed (Japanese Patent Publication No. Hei 9-222). 8-3852).

[0004]

As described in the prior art, in an OHP device using an information device such as a personal computer, it is necessary to prepare image data for presentation in advance. There was a problem that the presentation image could not be added flexibly according to the response of the listener, and the degree of freedom and flexibility of the display of the speaker was low. In the present invention,
It is an object of the present invention to provide an electronic presentation system that can flexibly cope with a situation during a lecture and has a high degree of freedom for a speaker in a presentation performed by an image display device such as a liquid crystal projector or an OHP device. .

[0005]

According to the first aspect of the present invention, the image data stored in the image display memory is transmitted to two display devices, an image display device of the speaker terminal and an image display device for the audience. In the image information display system having the function of displaying, a touch panel is added on the screen of the image display device of the speaker terminal, an input function by the touch panel and a unit for inputting control information, and 2
And a function of displaying image data in the image display memory on two display devices.

According to a second aspect of the present invention, in the image display device of the first aspect, an input function by a touch panel and a means for inputting image data on a screen of the image display device of the speaker terminal, and the input image data A third memory means for storing is provided, and by inputting with a touch pen or the like on the touch panel of the speaker terminal, a third memory means is newly added on the image data previously stored in the image display memory. Image data is added.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of an image display device according to the present invention will be described in detail with reference to the drawings. The hardware configuration is common to the first and second embodiments, which will be sequentially described later.

FIG. 1 is a functional block diagram showing an example of an embodiment of a main part configuration of the image display device of the present invention. In the figure, 1 is a CPU, 2 is a ROM, 3
RAM, 4 HDD (Hard Disk Drive), 5 FDD (Floppy Disk Drive), 6 first interface circuit, 7 first image memory, 8 second image memory, 9 Is a display controller, 10 is a touch panel controller, 11 is a second interface circuit, 12 is a system bus, 13 is a mixer, 14 is a first display device, 15 is a second display device, 1
Reference numeral 6 denotes a touch panel, and 17 denotes a pointing device.

First, the function of each block will be briefly described with reference to FIG. The CPU 1 has a function of performing all controls such as control of the entire image display apparatus and image generation, and is controlled by a program stored in the ROM 2. The RAM 3 is a memory unit used as a work area or an application area required when the CPU 1 operates. The HDD 4, which is an external storage device,
It is a memory unit that can take in and store image data from outside the device by means of the FDD 5 as another external storage device or the first interface circuit 6. The first image memory 7 and the second image memory 8 are memory means for storing display data. The display controller 9 transmits the display data stored in the first image memory 7 and the second image memory 8 to the first display device 14 and the second image memory 8.
Has a function of performing control for display on the display device 15. Further, the display controller 9 controls the mixer 1
3 to control the first image memory 7 and the second image memory 8
It also has a function of superimposing the display image data and instantly switching the display.

The touch panel controller 10 reads the position information input to the touch panel 16, controls the read information by a program or the like built in the touch panel controller 10, and exchanges information with the display controller 9. It is possible to add information to the display image information of the image memory 7 or the second image memory 8 or to partially rewrite the information. The touch panel 16 is provided so as to overlap the display area of the second display device 15, and a position on the display screen corresponds to a portion pressed on the touch panel 16 with a pen or the like. The second interface circuit 11 and the pointing device 17 are input means that can be used for performing input for controlling the entire display system. The above blocks 1 to 11 are interconnected by a system bus 12.

First Embodiment This first embodiment mainly corresponds to the invention of claim 1, but also relates to the invention of claim 2. In the first embodiment, the first display device 14 shown in FIG. 1 is used as a display device for the audience, and the second display device 15 and the touch panel 16 constitute a speaker terminal. Is the case. In this case, the first image memory 7 stores display data for the listener as display information for the listener.

The second image memory 8 stores display data for the speaker as display information for the speaker. Here, the display data stored in the second image memory 8 includes a command for controlling the display system of FIG. 1, for example, a control to advance the screen display to the next page or return to the previous page. The display area is provided in a predetermined area of the second image memory 8 so that the data for performing such control can be input from the touch panel 16. Stores data for Therefore, an image for controlling the display system is displayed on the screen of the second display device 15 serving as the speaker terminal, in addition to the display content of the first display device 14 serving as the audience display device. Will be done.

That is, by the display controller 9,
The display data stored in the first image memory 7 is displayed on the first display device 14 for the listener, and the mixer 13 is controlled to control the first image memory 7 and the second image memory. 8 is superimposed on the display data, and is displayed on the second display device 15 which is the terminal for the speaker. In this case,
The touch panel controller 10 reads the position information input to the touch panel 16 and performs control by a program or the like built in the touch panel controller 10,
By exchanging information with the display controller 9, information is added to the display image data in the second image memory 8, or a part of the information is rewritten.

As described above, in the first embodiment,
A speaker terminal is configured by the second display device 15 and the touch panel 16, and the image data of the display device for the audience can be switched at any time during the lecture by operating the touch panel 16. ing. Therefore, in addition to what is displayed for the audience,
It is possible to control the display system, to concentrate on the talk without using extra nerves, and to obtain a more effective presentation environment than before. In addition,
In the above-described embodiment, the case of a lecture has been mainly described. However, if the terminal for the lecturer is used for the teacher and the image display device for the audience is used for the student, it is needless to say that the terminal can be sufficiently used for education. Absent.

Second Embodiment The second embodiment mainly corresponds to the invention of claim 2, but is based on the invention of claim 1. In the second embodiment, in the image display device described in the first embodiment, it is assumed that arbitrary image information is added and displayed by handwriting input to image display information stored in advance. The feature is that it is made possible. The first image memory 7 stores the display data for the listener in the same manner as described in the first embodiment.
However, in the second embodiment, the second image memory 8 stores display data input from the touch panel 16 together with control data such as commands for controlling the display system. different. That is, the data stored in the second image memory 8 is, in addition to the control data, information written by a touch pen, for example, display data such as encircled by a circle, an underline, and an arrow. The third memory means for storing the input image data stores display data in a predetermined area of the second image memory 8 in addition to the control data area (second memory means). What is necessary is just to provide the area which performs.

The touch panel controller 10 reads the position information input to the touch panel 16, controls the read information by a program or the like built in the touch panel controller 10, and exchanges information with the display controller 9. New information is added to the display image information 8 or part of the information is rewritten. In the second embodiment, by performing an input with a touch pen or the like on the touch panel 16 of the speaker terminal, a new handwriting is performed by handwriting on the image data stored in the first image memory 7 in advance. 2 image memory 8
The image data added to is displayed in a superimposed manner. Therefore, it is possible to add arbitrary information, which is extremely effective when adding the latest information during a lecture. The above operation is shown in a flowchart.

FIG. 2 is a flow chart showing a flow of main processing at the time of display in the image display device of the present invention. In the figure, # 1 to # 6 indicate steps.

In step # 1, it is checked whether there is an input on the touch panel 16. If there is an input on the touch panel 16, it is checked in step # 2 whether the data is image data. If it is not image data, step # 3
2 to end the flow of FIG. If it is image data, the image data is stored in the second image memory 8 in step # 4.

In step # 5, the image data is read from the second image memory 8. In step # 6, the read image data is combined with the image data read from the first image memory 7, and the first display device 1 for the audience is synthesized.
4 on the screen of the second display device 15 of the speaker terminal. By the processes of steps # 1 to # 6, display operations such as image display and page switching by the image display device of the present invention are executed.

The display data in this case includes:
In addition, by inputting an area surrounded by a rectangle on the touch panel 16 and adding a function of filling the area surrounded or canceling the filling, the display of the first display device 14 for the listener can be displayed. It is also possible to use data that masks a certain part to make it invisible or unmasks it to make it visible. For example, at first, a certain part of the display of the first display device 14 for the audience is hidden (masked), and the part is clarified (unmasked) while proceeding with the story. It is possible to give an effective presentation.

[0021]

According to the image display device of the first aspect, the first display device is a display device for the audience, the second display device and the touch panel are the terminals for the lecturer, and the first image memory is for the audience. The display information for the speaker and the display information for the speaker are stored in the second image memory, and the command for controlling the display system (for example, to advance the screen display to the next page) is displayed in the display for the speaker. , Return to the previous page, etc.) can be input from the touch panel. Therefore, in addition to the contents displayed for the audience, the function of an input means (touch panel) capable of controlling the display system is added to the speaker terminal.
A more effective presentation environment is realized as compared with the related art.

According to a second aspect of the present invention, in the image display apparatus of the first aspect, information written on a touch panel with a touch pen or the like (this information is so-called handwritten input information) is stored in a second image memory. And the first image memory. Therefore, in addition to the effect of the image display device of the first aspect, arbitrary information can be added to the previously stored display information by handwriting. Therefore, it is extremely useful when adding the latest information. For example, on the display screen for the audience (display information), the content to be emphasized is indicated on the spot during the lecture by enclosing a part of the area with a circle, underlining, or adding an arrow. It becomes possible. Another advantage is that the operation of indicating a point on the display screen, which has been conventionally performed using a pointing rod or a laser, can be performed on the terminal. Note that, by inputting a region surrounded by a square on the touch panel as display data, and adding a function of filling the surrounded region or canceling the filling, the first display device for the audience can be displayed. A more effective presentation environment can be obtained by using data that masks a part of the display to make it invisible or removes the mask to make it visible.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing an example of an embodiment of a main part configuration of an image display device of the present invention.

FIG. 2 is a flowchart showing a flow of main processing at the time of display in the image display device of the present invention.

[Explanation of symbols]

1 CPU, 2 ROM, 3 RAM, 4 H
DD, 5... FDD, 6... 1st interface circuit, 7... 1st image memory, 8... 2nd image memory, 9. 2 interface circuits, 1
2 System bus, 13 Mixer, 14 First display device, 15 Second display device, 16 Touch panel, 17 Pointing device

Claims (2)

[Claims] 1. An image information display system having a function of displaying image data stored in an image display memory on two display devices, an image display device of a speaker terminal and an image display device for a listener. A means for adding a touch panel on the screen of the image display device of the speaker terminal, inputting an input function by the touch panel and control information, a second memory means for storing the input control information, An image display device having a function of displaying image data in an image display memory on the two display devices. 2. The image display device according to claim 1, wherein an input function using a touch panel and image data are input on a screen of the image display device of the speaker terminal; and a third unit that stores the input image data. The image data of the third memory means is newly added to the image data previously stored in the image display memory by performing an input using a touch pen or the like on the touch panel of the speaker terminal by using the touch panel of the speaker terminal. An image display device comprising: