JPH05193295A - Electronic blackboard - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an electronic blackboard with digitized input and display output. [Structure] An electronic blackboard is composed of a data processing device having a function equivalent to that of a word processor using a polymer dispersed liquid crystal panel as a display unit. [Effect] Since a relatively lightweight and large-sized display screen can be configured, it becomes possible to computerize input and display output.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic blackboard and, more particularly, to a technique effective when used in a fully electronic blackboard.

[0002]

2. Description of the Related Art A conventional electronic blackboard has a function of making a hard copy of a content handwritten with a felt-tip pen or the like on a flexible white plastic sheet as needed.

[0003]

In the conventional electronic blackboard,
It is called an electronic blackboard by making a pad copy of the handwritten contents. With the spread of information devices for offices, documents and the like are widely created by word processors and the like. Therefore, the inventor of the present application considered a fully electronic electronic blackboard having a function of easily and automatically displaying the contents and materials of the agenda created by such a word processor. An object of the present invention is to provide an electronic blackboard in which inputs and display outputs are also digitized. The above and other objects and novel features of the present invention will be apparent from the description of this specification and the accompanying drawings.

[0004]

The outline of the representative one of the inventions disclosed in the present application will be briefly described as follows. That is, the polymer blackboard is used as a display unit to form an electronic blackboard with a data processing device having the same function as a word processor.

[0005]

According to the above-mentioned means, since a comparatively lightweight and large-sized display screen can be constructed, it is possible to computerize the input and display output.

[0006]

1 is a schematic perspective view of an embodiment of an electronic blackboard according to the present invention. In this embodiment, a polymer-dispersed liquid crystal is used for the display unit 1 to perform an electrical display and also used as a handwriting input unit as described later. The display unit 1 performs an operation of displaying an agenda, materials, etc. according to display data formed by a data processing device including a built-in microcomputer system.

The polymer-dispersed liquid crystal panel (or liquid crystal polymer) used as the display unit 1 uses solid liquid crystal 14 instead of liquid liquid crystal, as shown in the sectional view of FIG. The two substrates 13 and 15 sandwich the liquid crystal 14 between them.
Is configured. The substrates 13 and 15 are transparent plastic substrates on which electrode patterns are formed. A reflector 16 is provided on the back surface of the lower substrate 15. The use of such a reflection plate 16 is advantageous in terms of thinning and weight reduction of the display panel section. Instead of this reflection plate 16,
A backlight unit as indicated by an arrow in the figure may be provided.

By using the solid liquid crystal 14 as described above, the substrates 13 and 15 sandwiching it can be made plastic. With this, unlike a liquid crystal display panel using a liquid crystal, it is not necessary to use a glass substrate, so that a thinner display panel can be configured and since it is rich in flexibility, mechanical strength such as bending stress can be increased. With
It is possible to realize a large display screen like a blackboard without the risk of breaking like a glass substrate.

In FIG. 1, 2 is an operation panel,
It is mainly used to instruct the operation mode of the electronic blackboard. For example, it is used for various mode controls such as display input mode, display operation, page designation, and display output mode.

Reference numeral 3 is a keyboard, which is used for inputting characters and figures in place of handwriting. That is, it is used for inputting characters, figures, etc. to be displayed on the display unit 1 by an operation similar to that of a word processor. The above-mentioned operation panel 2 may be omitted, and the various modes as described above may be controlled by the keyboard 3. It should be noted that the degree of freedom of the system can be increased by providing the dedicated operation panel 2 for controlling various modes of the electronic blackboard, such as preparing the keyboard 3 as an option.

Reference numeral 5 denotes a floppy drive device, which is equipped with a floppy disk on which the agenda and materials created by other word processors and the like are stored, and by reading the floppy disk, conventional handwriting can be automated. It goes without saying that the floppy drive device 5 can also be used when recording the minutes including matters decided in a conference or the like.

A hard copy output port 6 is used to print out various data stored in a display screen or a built-in microcomputer system by a built-in printer or the like and output it as a hard copy.

Reference numeral 4 denotes a light pen, which is used when handwriting is input using the surface of the display unit 1. That is, as shown in FIG. 2, a touch panel or a tablet 10 made of a transparent plate is superposed on the surface of the display panel 11 using the polymer-dispersed liquid crystal as described above, and by touching the surface with the light pen 4, Input handwritten data. Instead of the light pen 4, the handwriting input data may be taken in by touching a finger.

An example of how to use the electronic blackboard of this embodiment is as follows:
It is as follows. Before the meeting, create an agenda and materials with a word processor etc. and write it on a floppy disk. The floppy disk thus prepared is mounted on the floppy drive device 5 and the read operation is instructed by the operation panel 2. As a result, the agenda and materials created above are input to the memory of the built-in microcomputer.

In a meeting or the like, the operation panel 2 is operated to display the agenda and materials corresponding thereto. At this time, since the storage capacity of the floppy disk or the memory device has a storage capacity of a plurality of pages, it is possible to display the agenda and materials consisting of a plurality of pages within a very short time only by designating the read page. ..

During the conference, for inputting decisions, the document editing function of the word processor function of the keyboard 3 is used to add or delete agendas and materials created in advance. In addition, the light pen 4
It is possible to input by handwriting by using and to overlap with any part of the display screen. In this case, when the polymer-dispersed liquid crystal is used, the electrodes 13 and 15 can be thinly formed, so that the parallax between the trajectory of the light pen 4 and the liquid crystal display operation corresponding thereto can be reduced, and handwriting work can be facilitated. ..

The conference material created as described above can be written in a floppy disk as well as being output as a hard copy. As a result, the conference materials can also be stored in the floppy disk, so that a clean copy by a word processor or the like can be largely omitted.
That is, the conference material can be created by simply copying only the handwritten input portion, and the storage management thereof can be digitized.

By digitizing such a blackboard, it is possible to simply omit the handwriting input as compared with the conventional electronic blackboard. It becomes possible. Therefore, it is possible to easily create a report or the like that summarizes a series of related minutes and to read and display the previous minutes by collectively digitizing as described above, thus promoting the efficiency of the meeting. be able to.

The effects obtained from the above embodiment are as follows. That is, (1) by constructing an electronic blackboard using a polymer-dispersed liquid crystal panel as a display unit, a relatively large-sized display screen can be constructed, so that input and display output can also be digitized. The effect is obtained.

(2) From the above (1), it becomes possible to digitize the conference materials, etc., the minutes, and the storage management all at once, thus promoting the efficiency of the meetings. can get.

Although the invention made by the present inventor has been specifically described based on the embodiments, the invention of the present application is not limited to the embodiments, and various modifications can be made without departing from the scope of the invention. Needless to say. For example, the handwriting input function may be omitted. This is because the same operation as the handwriting input function can be performed by the addition and deletion functions that utilize the document editing function similar to the word processor by operating the keyboard 3, and the relatively large tablet or touch panel can be omitted. The price of 1 can be reduced. As an exchangeable storage medium, R
It may be another storage device such as an AM card. That is, a random access memory configured by a semiconductor integrated circuit device and a backup battery can be housed in a card-shaped plastic case and used as a replaceable memory medium. As the data processing device that performs the display operation and the document editing, any device having a data processing function equivalent to the microcomputer function may be used. The present invention can be widely used for electronic blackboards.

[0022]

The effects obtained by the typical ones of the inventions disclosed in the present application will be briefly described as follows. That is, by configuring the electronic blackboard using the polymer dispersion type liquid crystal panel as a display unit,
Since a comparatively lightweight and large-sized display screen can be configured, display input and display output can be made electronic.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of an electronic blackboard according to the present invention.

FIG. 2 is a schematic perspective view showing an embodiment of the display panel.

FIG. 3 is a cross-sectional perspective view showing an embodiment of a display panel used in the electronic blackboard according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Display part, 2 ... Operation panel, 3 ... Keyboard, 4 ... Runt pen, 5 ... Floppy drive device, 6 ... Hard copy output port, 10 ... Tablet (touch panel), 11 ... Polymer dispersion type liquid crystal display panel, 13, 15 ... plastic substrate, 14 ... solid-state liquid crystal, 16 ... reflector.

Claims (1)

[Claims] 1. An electronic blackboard comprising: a display unit made of a polymer dispersed liquid crystal panel; and a data processing unit for processing display data necessary for a display operation on the display unit.