JPH10222106A - Electronic information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic information display device capable of improving the power of expression and the power of transmission of information. SOLUTION: This electronic information display device is provided with a magnetic display sheet 10 capable of a monochromatic writing and erasing, rollers 50,60 for transporting the magnetic sheet 10 and a recording head forming a still picture based on picture information to be supplied from an external host device and marks M1-M4 of charactors, signs or graphics or the like printed in color are formed on the recording surface of the magnetic sheet 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic information display device for recording and displaying a still image on a display based on image information sent from an external host device.

[0002]

2. Description of the Related Art Conventionally, a magnetically responsive magnetic display sheet has been known as a display body which develops or erases color in response to the direction and strength of a magnetic field (for example, Japanese Patent Application Laid-Open No. 48-48).
56393, JP-A-2-146082).

[0003] Such a magnetic display sheet can draw simple characters and figures by contacting a magnet pen with a built-in magnet on the sheet surface, and can be reused many times by erasing. Has been put to practical use.

In recent years, an electronic information display device has been developed which records and displays a still image on a magnetic display sheet by a recording head forming a dot matrix magnetic field based on print information sent from an external host device. Is being done.
Since the electronic information display device can change the display content arbitrarily by remote control from an external host device, it can be installed at public facilities, stations, retail stores, etc. Can be widely announced and advertised. In addition, poster replacement work is not required, which contributes to resource saving of paper and the like, and is therefore expected to be a future bulletin board.

[0005]

In such an electronic information display device, it is possible to record different information on the magnetic display sheet for each rewriting operation, but when a part of the display information becomes the same information every time. However, since it is difficult to erase and record only the portion to be changed, the erasing operation and the recording operation on the entire surface of the sheet are repeated every time.

Further, image information to be displayed is sent from an external host and temporarily stored in a memory in the apparatus. However, since the memory stores the image information in units of images, if the same data exists in a plurality of pieces of image information, the memory Will be consumed extra.

Further, the current magnetic display sheet is only a monochrome display of white or black, and cannot display a color image like a conventional poster. Therefore, there is no denying the impression that the expressiveness and appeal of the information are less than the poster.

An object of the present invention is to provide an electronic information display device capable of significantly improving the expressive power and transmitting power of information.

[0009]

SUMMARY OF THE INVENTION The present invention provides a writable and erasable display device, a transporting device for transporting the display device, and a display device based on image information supplied from an external host device. Recording means for forming a still image on the recording surface of the display, and erasing means for erasing the still image on the display formed by the recording means, wherein erasing by the erasing means is not possible on the recording surface of the display. An electronic information display device characterized in that various characters, symbols or figures are formed. According to the present invention, the same information can be displayed any number of times without being erased by forming characters, symbols, or graphics that cannot be erased by the erasing means on the recording surface of the display. This eliminates the need for data transfer and storage of information that cannot be erased by the erasing means on the recording surface, thereby saving memory and improving processing speed.

Further, according to the present invention, a writable and erasable display body is a monochromatic display body, and a character, a symbol or a figure which cannot be erased by an erasing means is printed in color.
It is a symbol or a figure. According to the present invention, the same information can be displayed many times without being erased by forming color printed characters, symbols or graphics on the recording surface of the display. Also,
Since the display can be written or erased in a single color, information to be displayed can be changed every time. In this way, the expressiveness and transmission power of information,
The degree of appeal can be greatly improved. In addition, since information printed on the recording surface does not require data transfer or storage, memory can be saved and processing speed can be improved.

According to the present invention, a writable and erasable display body, a transporting means for transporting the display body, and a still image are formed on the display body based on image information supplied from an external host device. An electronic information display device comprising: a recording unit for generating a sound based on sound information supplied from an external host device; and a sound generating unit for generating a sound in accordance with image display of a display body. It is. According to the present invention, in accordance with the image display of the display body, by generating sounds such as music, narration, and sound effects, to stimulate both visual and auditory senses, expressive power and transmission power of information,
The degree of appeal can be greatly improved. In addition, information can be reliably transmitted to the blind and the hearing impaired.

[0012]

FIG. 1 is a side sectional view of an electronic information display device according to the present invention, and FIG. 2 is a partial perspective view thereof. A driven roller 50 is disposed on the inner upper portion of the housing 1, and a driving roller 60 is disposed on the inner lower portion. A flexible and endless magnetic member is provided between the two rollers 50 and 60. The display sheet 10 is suspended. Roller 5
Numeral 0 is urged upward by an elastic member (not shown) such as a spring, and applies a constant tension to the magnetic display sheet 10 to stabilize the running of the sheet and maintain the flatness of the sheet surface. The roller 60 is driven to rotate by a motor 63 via gears 61 and 62. By driving the roller 60, the magnetic display sheet 10 is moved from bottom to top on the front side of the housing 1 (left side in FIG. 1 and rear side in FIG. 2), and from the rear side of the housing 1 (right side in FIG. In FIG. 2 (front side), circulation is performed so as to transfer from top to bottom. A display window 2 made of a transparent material such as acrylic resin or glass is formed on the front surface of the housing 1.

The recording head 30 is installed below the rear transfer side of the magnetic display sheet 10 and, based on a print signal from an external host device (not shown), directs a dot matrix toward the surface of the magnetic display sheet 10. A recording magnetic field is generated. The recording head 30 has a plurality of electromagnetic coils arranged in a staggered manner, for example, and is mounted on a carriage 31 that reciprocates in the sheet width direction. The carriage 31 is 2
Endless belt 3 suspended between two pulleys 34, 35
3 and a motor 36 that drives the pulley 35 to rotate while being guided by the two guide shafts 32.
Driven by

The erasing head 20 is composed of a permanent magnet or the like having a length equal to or longer than the sheet width. The erasing head 20 is arranged above the front transfer side of the magnetic display sheet 10 and in close contact with the back side of the magnetic display sheet 10. I have.

FIG. 3 is a partial sectional view showing the structure of the magnetic display sheet 10. On the magnetic display sheet 10, microcapsules 15 that develop color in response to magnetism are applied and fixed over the entire surface. The microcapsule 15 is composed of a high-viscosity liquid and a spherical shell that holds the liquid tightly.
In this liquid, substantially black magnetic particles and substantially white non-magnetic particles are dispersed. For example, black iron oxide (FeO) particles having a particle size of 0.1 to 5 μm are used as magnetic particles, and white titanium oxide particles having a particle size of 0.1 to 5 μm are used as nonmagnetic particles. In addition, as the high-viscosity liquid, an aqueous liquid, an oil or fat, an organic solvent including a surfactant-based solvent or the like is used, and gelatin is mainly used as a material of the spherical shell. Distributed in a range.

The microcapsules 15 are kneaded together with a binder 14 made of a highly transparent synthetic rubber-based adhesive or the like, and applied to a substrate 11 made of a transparent material such as polyethylene terephthalate.
A μm capsule coating layer 12 is formed.

A protective sheet 13 made of, for example, a polypropylene long-fiber nonwoven fabric is adhered to the back surface of the capsule coating layer 12 so as to have a thickness of, for example, 300 to 1000 μm.
Seat running is facilitated.

On the other hand, the recording head 30 has a box-shaped yoke 39 made of a high magnetic permeability material, a magnetic core 37 erected inside the yoke 39 and made of a high magnetic permeability material, and an electromagnetic core mounted on the magnetic core 37. And a plurality of magnetic cores 37 and electromagnetic coils 38 corresponding to the plurality of print dots. A number of voids are formed on the printing surface 39a of the yoke 39, and the leading end of the magnetic core 37 is positioned at the center of each void, and the leakage magnetic field is generated by the presence of the void between the magnetic core 37 and the void. Occurs.

When the electromagnetic coil 38 is selectively energized in response to a print signal, a magnetic field is generated along the axial direction of the magnetic core 37 and passes through a magnetic circuit comprising the magnetic core 37, a gap and a yoke 39. , A recording magnetic field is generated toward the magnetic display sheet 10.

Next, the principle of magnetic recording / display and erasure will be described. When the recording head 30 is brought close to the surface of the magnetic display sheet 10 where the substrate 11 is located, and a recording magnetic field is generated based on a print signal, the magnetic particles dispersed in the microcapsules 15 are attracted to the substrate 11 and the pressure is reduced. Thereby, the non-magnetic particles move to the protective sheet 13 side.
Then, when viewed from the front side of the magnetic display sheet 10, the portion to which the recording magnetic field is applied is observed to appear substantially black, and by applying the magnetic field in a dot matrix using the recording head 30, characters and symbols can be displayed. Recording can be performed, thereby enabling monochrome (single color) display.

Next, when the erasing head 20 is brought close to the back side of the magnetic display sheet 10, that is, the side where the protective sheet 13 is located, the magnetic particles dispersed in the microcapsules 15 are attracted to the protective sheet 13 side, and the pressure is reduced. As a result, the non-magnetic particles move toward the base 11. Then, when viewed from the front side of the magnetic display sheet 10, the portion to which the erasing magnetic field is applied becomes substantially white, and the erasing magnetic field is uniformly erased by applying the erasing magnetic field to the entire sheet width.

As the above-mentioned high-viscosity liquid in the microcapsule 15, a liquid having a predetermined viscosity is selected so as to maintain a display state of the magnetic particles moved to the back side or the front side by applying a magnetic field. That is, if the viscosity of the liquid is low, the display state is prevented from being disturbed by the particles that have once moved to the front side or the back side settling or moving due to vibration or the like. Therefore, the above-described recording head 3
The magnetic attraction force in the zero and erasing heads 20 needs to be greater than the yield value due to the viscosity of the liquid, and thereby writing and erasing of a display are performed.

Next, the operation of the entire apparatus will be described. Referring to FIGS. 1 and 2, first, before printing is started, the magnetic display sheet 10 is circulated at a constant speed and the erase head 20 is rotated.
To erase the entire surface. Next, a print signal is received from an external host device, and each time the development of image data for one print line is completed, the recording head 30 is moved for several milliseconds to several hundred milliseconds while moving in the sheet width direction. The magnetic printing is performed by applying the pulse current described above and applying a dot matrix magnetic field to the surface of the magnetic display sheet 10.

When the printing for one line is completed, the magnetic display sheet 10 is moved by a predetermined feed pitch and stopped, and then printing is performed based on the image data developed for the next printing line. Thus, the development of the image data, the recording head 30
The image of one sheet is formed while repeating the serial printing and the intermittent feeding of the magnetic display sheet 10.

Next, when a new image is printed, the magnetic display sheet 10 is circulated at a constant speed to erase the entire surface by the erasing head 20, and then the recording head 3 is printed.
Performs serial printing with 0.

FIG. 4 is a perspective view showing various examples of the magnetic display sheet 10. In FIG. 4A, a mark M1 representing a frame equivalent to the display area of the display window 2 is formed on the recording surface of the magnetic display sheet 10 in a color other than black. Mark M1
The area inside is the area to be subjected to magnetic recording and erasing.

In FIG. 4B, the magnetic display sheet 10
A mark M2 formed by continuously arranging characters and forming a frame is formed in a color other than black on the recording surface of. The area inside the mark M2 is an area to be subjected to magnetic recording and erasing.

In FIG. 4C, the magnetic display sheet 10
A color mark M3 composed of a combination of characters, graphics, and the like, such as an advertising poster, is formed at two locations above and below the recording surface of the recording medium. The area between the marks M3 is an area to be subjected to magnetic recording and erasing.

In FIG. 4D, the magnetic display sheet 10
A mark M4 composed of black or color ruled lines is formed on the recording surface of. The area inside the mark M4 is an area to be subjected to magnetic recording or erasing.

The marks M1 to M4 may be printed directly on the base 11 of the magnetic display sheet 10 shown in FIG. It is formed so as not to be erased by the recording magnetic field.

By forming such marks M1 to M4 on the recording surface of the magnetic display sheet 10 in advance, it is possible to significantly improve the expressive power, transmission power and appeal of information together with the magnetically recorded image. In addition, by forming in advance a fixed ruled line, a logo character, and the like that require a repetitive writing operation by printing in black or color, the recording speed can be improved, and the life of the magnetic display sheet can be extended. .

FIG. 5 is a block diagram showing the electrical configuration of the electronic information display device according to the present invention. The electronic information display device includes a CPU (central processing unit) 71 for controlling the operation of the entire device according to a predetermined program, a clock circuit 72 for generating a clock for determining the operation timing, and a timer circuit 73 for measuring the elapsed time. A clock circuit 91 for measuring today's date, day of the week and current time; an operation panel 75 including various switches and display LEDs (light emitting diodes); and an input / output (I
/ O) circuit 74 and an EPROM (Electrically Programmable Read Only) for storing programs and data.
Memory) 76 and an EEPROM (Erasable Electrically Programmable R) for storing data in a rewritable manner.
ead Only Memory) 77, a system control circuit 78 for managing display-related management and control related to the entire apparatus such as an initial operation at power-on, and an interface circuit 80 for communicating with external devices. An interface (I / F) control circuit 79 for controlling the interface circuit 80; a motor control circuit 83 for controlling the number of rotations and the direction of rotation of the motors 36 and 63; and a head control for controlling the operation of the recording head 30. Circuit 84 and a RAM (Random) for temporarily storing various data such as print data.
Access Memory) 85, a memory control circuit 86 for controlling a use area of each of the memories 76, 77, 85, and a motor 3
6, 63 and a driver circuit 88 for driving the recording head 30, a driver control circuit 87 for controlling the driver circuit 88, and a bus 70 for interconnecting the circuits.

The interface circuit 80 is a facsimile modem (facsimile modem) for transmitting / receiving a signal to / from another facsimile apparatus via a transmission line such as a telephone line.
81 and a serial communication circuit 82 for transmitting and receiving signals to and from another computer in accordance with a communication standard such as RS232C.
And Such a facsimile device or computer functions as an external host device of the present device.

The alarm circuit 90 includes a sound source such as a buzzer, a chime, and a speaker, and a light source such as a lamp and a light emitting diode, and is connected to the input / output circuit 74.

The sound circuit 92 includes a D / A (digital-analog) converter, a MIDI sound source, and the like. Based on waveform data and MIDI data transmitted from an external host device, sound such as music, narration, and sound effects are provided. The signal is converted into a signal, and a sound is generated from the speaker 93. By generating a sound in accordance with the image display of the magnetic display sheet 10 in this manner, the expressive power, the transmitting power, and the appeal of the information can be remarkably improved.

[0036]

As described in detail above, according to the present invention, the expressive power, transmission power and appeal of information recorded on a display can be remarkably improved.

[Brief description of the drawings]

FIG. 1 is a side sectional view of an electronic information display device according to the present invention.

FIG. 2 is a partial perspective view showing an electronic information display device according to the present invention.

FIG. 3 is a partial sectional view showing a structure of a magnetic display sheet 10.

4 is a perspective view showing various examples of the magnetic display sheet 10. FIG.

FIG. 5 is a block diagram showing an electrical configuration of the electronic information display device according to the present invention.

[Explanation of symbols]

 Reference Signs List 1 housing 2 display window 10 magnetic display sheet 20 erasing head 30 recording head 31 carriage 36, 63 motor 50, 60 roller 71 CPU 73 timer circuit 74 input / output circuit 80 interface circuit 85 RAM 91 clock circuit 92 sound circuit 93 speaker

Claims (3)

[Claims] 1. A writable and erasable display body, a transport means for transporting the display body, and forming a still image on a recording surface on the display body based on image information supplied from an external host device. Recording means for erasing, and erasing means for erasing a still image on the display body formed by the recording means, a character which cannot be erased by the erasing means on the recording surface of the display body,
An electronic information display device, wherein a symbol or a figure is formed. 2. A display device according to claim 1, wherein said display member capable of writing and erasing is a monochrome display member, and characters, symbols or graphics which cannot be erased by said erasing means are characters, symbols or graphics printed in color. The electronic information display device according to claim 1, wherein 3. A writable and erasable display body, a transport means for transporting the display body, and a display means for forming a still image on the display body based on image information supplied from an external host device. An electronic information display device, comprising: a recording unit; and a sound generating unit for generating a sound in accordance with image display of a display body based on sound information supplied from an external host device.