JP2002189202A - Electronic bulletin board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic bulletin board permitting powerless display by constructing a display part from memory type liquid crystal display elements, and permitting remote and multi-points simultaneous rewrite display by making the display part operate via a personal computer and a network. SOLUTION: It is made possible to display data from a personal computer by constructing an information display screen from the memory type liquid crystal elements displayable in color and it is also possible to write and erase display contents instantly, and further, the bulletin board permits remote and multi-points simultaneous rewrite/write display by making it operate via the network, and furthermore, it is constructed so as to maintain an information display state without electric power.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic bulletin board for displaying data of a personal computer or information data distributed over a network.

[0002]

2. Description of the Related Art Conventionally, a bulletin board, which is one of the main information transmitting means in public facilities, hospitals and schools, has a printed matter of the same content manually pasted on bulletin boards installed in several places. However, when the posting place extends over a wide range and at many points, it takes a lot of labor and is inefficient and a large time lag occurs in the information posting. On the other hand, in recent years, information display devices using an LED display, a plasma display, and the like have become widespread, and the above-mentioned problems have been improved, leading to labor saving and paper resource protection.

[0003]

In an information display device using such an LED display or a plasma display, power is constantly consumed while information is displayed, and running costs are high and there is a problem in economy. In terms of power consumption, it is not good at saving resources,
Since it is not suitable for the purpose of displaying for 24 hours like a conventional bulletin board, improvement is required.

The present invention uses a memory-type liquid crystal display element capable of color display in an information display section, so that power is not required except when writing or rewriting display contents.
It is an object to provide an electronic bulletin board capable of realizing remote multipoint simultaneous display.

[0005]

According to the present invention, there is provided an information display unit comprising a liquid crystal display element for displaying an image in response to an input character or image signal. It has a memory function that can maintain an image display without external energy except when rewriting an image. By utilizing this memory function, the information display unit has an ultra-low power consumption.

Thus, an electronic bulletin board which can be displayed and rewritten simultaneously at remote multiple points and which does not require power while displaying information contents, that is, maintaining image display, can be obtained.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, an information display surface is constituted by a liquid crystal display element having a memory function capable of color display, and is connected to a personal computer for editing and creation. Information data can be displayed.
This has the effect that erasing can be performed instantaneously.

According to a second aspect of the present invention, the information display surface is constituted by a liquid crystal display element having a memory function capable of color display, and is connected to a network, thereby distributing information data via the network, thereby enabling remote control. This has the effect that multipoint simultaneous rewriting display is enabled.

According to a third aspect of the present invention, the information display surface is constituted by a liquid crystal display element having a memory function capable of displaying a color image, whereby writing and rewriting can be performed by any one of the first and second means. This has the effect that the displayed content can be maintained without power.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG.

FIG. 1 is a schematic configuration diagram of an electronic bulletin board according to an embodiment of the present invention.

In FIG. 1, an information display surface 10 is constituted by a liquid crystal display element capable of color display having a memory property capable of maintaining an image display without external energy except when rewriting an image. The display principle of this liquid crystal utilizes interference reflection due to a helical structure of a liquid crystal molecule arrangement called a cholesteric phase which has been known since the discovery of the liquid crystal, and color display is possible without a color filter and a polarizing plate. This is a display mode in which the reflection state and the transmission state are each stable and have memory properties. In order to take advantage of the characteristics of the liquid crystal display element, it is designed so that power consumption of the entire system is finely controlled so as to minimize power consumption except when rewriting an image. Also,
This system can display data edited and created on a personal computer by connecting to a personal computer, and can display data remotely by connecting to a network. Simultaneous rewriting becomes possible.

[0013]

As described above, according to the present invention, power is not required during display of information contents except when rewriting the information contents, that is, during maintenance of image display, and remote multipoint simultaneous display and rewrite are possible. An advantageous effect of providing a simple electronic bulletin board can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an electronic bulletin board according to an embodiment of the present invention.

[Explanation of symbols]

 1 Electronic bulletin board 2 Information display surface

Claims (3)

[Claims] An information display surface is constituted by a liquid crystal display element having a memory function capable of displaying a color image, and connected to a personal computer, whereby information data edited and created by the personal computer can be displayed. An electronic bulletin board that can be erased instantly. 2. An information display surface comprising a liquid crystal display element having a memory function capable of color display, connected to a network, and distributing information data via the network so that remote multipoint simultaneous rewrite display can be performed. A composed electronic bulletin board. 3. An information display surface comprising a liquid crystal display element having a memory property capable of displaying a color image.
3. An electronic bulletin board configured to be able to maintain display content written and rewritten by any one of claims 2 without power.