JP2002365672A - Information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily change display contents of an information display device used at a place where many people gather (for example, a public hall) as an advertisement/public medium. SOLUTION: A display plate 4 is constituted by arranging many display elements 2 along longitudinal and lateral two directions and in a rectangular shape. Each element 2 has a fixed piece made up with a magnetic body having hysteresis characteristic. A movable piece made up with a permanent magnet is supported to the fixed piece in a freely rotative manner and capsules, that are colored in accordance with the polarities of the movable piece, are mounted on the piece. Two axis X section coil 10 and Y section coil 11 are arranged on each element 2 to surround the fixed piece. An X section driving circuit 12 and a Y section driving circuit 13 are provided to supply normal and reverse direction currents to the coils 10 and 11. When specific coils 10 and 11 are energized, the polarities of the fixed piece is reversed, the movable piece and the capsules are rotated for a half revolution and a specific image is displayed on the entire surface of the plate 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information display device suitable for use as an advertisement / promotion medium in places where many people gather (for example, public halls, hospitals, train stations, conference rooms, etc.).

[0002]

2. Description of the Related Art In the recent highly information-oriented society, it is important to widely transmit information such as still images and moving images, and as a part thereof, advertisements and media are used in various places. Conventionally, as this kind of advertisement / advertisement medium, a panel made of synthetic resin or metal has been widely used in addition to a paper poster.

[0003]

However, in this case, when the display content of the advertisement / promotion medium is changed,
There is a disadvantage that it is necessary to replace the advertising medium and it is difficult to make a quick and simple change.

[0004] In view of such circumstances, an object of the present invention is to provide an information display device capable of easily changing display contents.

[0005]

First, according to a first aspect of the present invention, a plurality of display elements (2) are arranged on a plane to form a front panel (3) and a back panel (5). Display device (1) having a display plate (4) sandwiched between
A movable element (7) made of a permanent magnet is rotatably supported on a stator (6) made of a magnetic material having hysteresis characteristics as each of the display elements, and the movable element has a polarity corresponding to its polarity. A coil (10, 11, 14) is provided on each of the display elements with two or more axes so as to surround the stator, and a positive electrode is mounted on each of the coils. Drive devices (12, 13, 19) capable of conducting electricity in opposite directions are provided.

By adopting such a configuration, when a specific coil is energized, the polarity of the stator is reversed and the mover and the capsule are rotated by 180 °, so that a specific image is displayed on the entire display panel. become. At this time, since all the stators have a hysteresis characteristic with respect to the reversal of their polarities, it is not necessary to always turn on the power of the information display device when displaying a still image on the display panel.

In the invention according to a second aspect of the present invention, the stator (6) is formed in a cylindrical shape.

In the invention according to a third aspect of the present invention, the stator (6) is formed in a cylindrical shape.

[0009] The invention according to claim 4 of the present invention is constituted by imparting fluorescence to the capsule (9).

[0010] The invention according to claim 5 of the present invention is constituted by filling a transparent lubricant around the capsule (9).

Further, the invention according to claim 6 of the present invention is characterized in that a convex lens (3) is provided on the front surface of the front panel (3).
a) is formed corresponding to the display element (2). With this configuration, the effective display area of the display element is enlarged, and the dead space of the display panel is reduced.

Further, the invention according to claim 7 of the present invention is configured such that a writing device (15) is detachably provided so as to be magnetically coupled to the driving device (12, 13, 19). With this configuration, it is possible to easily change the image on the display panel.

It should be noted that reference numerals in parentheses are for convenience showing corresponding elements in the drawings, and therefore, the present invention is not limited to the description on the drawings. The same is true for the column of “Claims”.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing a first embodiment of an information display device according to the present invention, FIG. 2 is an enlarged detailed view of a part of the information display device shown in FIG. 1, and FIG. It is a figure which shows the movement of the mover of a display apparatus, (a) is a front view when an electric current is made to flow into an X part coil in a positive direction, (b) is the right side view, (c) is an X part coil. 1, (d) is a right side view thereof, FIG. 4 is a half sectional view of the mover of the information display device shown in FIG. 1, and FIG. 5 is an information display device shown in FIG. FIG. 6 is a graph showing the hysteresis characteristics of the magnetic material.

As shown in FIG. 1, the information display device 1 has a thin flat display plate 4, and a writing device 15 is detachably attached to the display plate 4.

In this display panel 4, as shown in FIGS. 1, 2 and 5, a large number of display elements 2 are arranged in a rectangular shape in two vertical and horizontal directions (X and Y directions). And the back panel 5 and each display element 2
Is composed of a stator 6, a mover 7 and a capsule 9. That is, each display element 2 has a stator 6 made of a magnetic material formed in a cylindrical shape.
As shown in FIG. 6, it has a hysteresis characteristic with respect to reversal of its polarity (N pole and S pole). Further, in the internal space of each stator 6, a movable element 7 formed of a spherical permanent magnet having a predetermined diameter (for example, 0.5 mm) is rotatably held. Further, as shown in FIG. 4, a capsule 9 made of a synthetic resin having a spherical shape is mounted on the surface of each mover 7, and each capsule 9 has a polarity (N pole and S pole) of the mover 7. And a black back surface 9a and a white back surface 9b, each of which is painted in half corresponding to each pole. The periphery of the capsule 9 (gap between the front panel 3, the back panel 5, and the stator 6) is filled with a transparent lubricant (not shown) such as silicone oil. It can rotate smoothly in the internal space.

As shown in FIGS. 1 and 3, these display elements 2 have a biaxial coil (X section coil 1).
0, Y section coil 11) is arranged so as to surround the stator 6. That is, the X-section coils 10 are arranged on the display elements 2 in each column, and the Y-section coils 11 are arranged on the display elements 2 in each row. And
An X section drive circuit 12 is connected to each of the X section coils 10, and a Y section drive circuit 13 is connected to each of the Y section coils 11.

On the other hand, the writing device 15 has a writing circuit 16, and a large number of X section transformers 17 are connected to the writing circuit 16 in such a manner as to be magnetically coupled to the respective X section driving circuits 12. At the same time, a number of Y section transformers 18 are connected to the respective Y section drive circuits 13 in such a manner as to be magnetically coupled.

Since the information display device 1 has the above-described configuration, when information is transmitted as an image such as a still image or a moving image using the information display device 1, a large number of display elements 2 use black or By displaying white, the image is represented on the entire display panel 4. At this time, the procedure for displaying black or white on each display element 2 is as follows.

That is, to change the white display element 2 to black, as shown in FIGS. 3A and 3B, the X-part drive circuit 12 corresponding to the display element 2 A positive-direction current is supplied, and a positive-direction current is supplied to the Y-part coil 11 from the Y-part drive circuit 13 corresponding to the display element 2. At this time, the value of the current flowing through the X-section coil 10 and the Y-section coil 11 is １ ／ of the specified value (the current value required for reversing the polarity of the stator 6). Then, in the display element 2, the current flowing through the X coil 10 and the current flowing through the Y coil 11 reach a specified value, and the polarity of the stator 6 is inverted. Since the black surface 9a of the capsule 9 appears by rotating by 180 °, the display element 2 displays black. In the other display elements 2, the current is only zero or half of the specified value, and the polarity of the stator 6 is not inverted, so that the original display (black or white) is maintained.

Conversely, the display element 2 in which black is displayed in this way
To return to white, as shown in FIGS. 3 (c) and (d), a current in the opposite direction is applied from the X-part drive circuit 12 corresponding to the display element 2 to the X-part coil 10 and the display element 2
A current in the opposite direction is passed from the Y section drive circuit 13 corresponding to the current to the Y section coil 11. At this time, the value of the current flowing through the X-section coil 10 and the Y-section coil 11 is １ ／ of the specified value (the current value required for reversing the polarity of the stator 6). Then, in the display element 2, the current flowing through the X coil 10 and the current flowing through the Y coil 11 reach a specified value, and the polarity of the stator 6 is inverted. Since the white back surface 9b of the capsule 9 appears by rotating by 180 °, the display element 2 displays white. In the other display elements 2, the current is only zero or half the specified value, and the polarity of the stator 6 is not inverted, so that the original display (black or white) is maintained.

At this time, since all the stators 6 have a hysteresis characteristic with respect to the reversal of their polarities, when displaying a still image on the display panel 4, the information display device 1 is always turned on. It is not necessary and has excellent power saving.

When an image on the display panel 4 is changed, a writing device 15 is attached to the display panel 4, each X section transformer 17 is connected to each X section drive circuit 12 by magnetic coupling, and Each Y section transformer 18 is connected to the section drive circuit 13 by magnetic coupling. In this state, using a personal computer or a mobile phone, the writing device 15 can be remotely connected via the Internet.
When the display data is transmitted to the display board, a predetermined signal is transmitted from the writing circuit 16 to each of the X section drive circuits 12 and each of the Y section drive circuits 13 based on the display data, and it is appropriately selected whether or not to supply power. 4 will be changed.

In the above embodiment, the surface 9
Although the description has been given of the case where the capsule 9 is used in which a is black and the back surface 9b is white, the front surface 9a and the back surface 9b of the capsule 9 may be painted with other colors (for example, three primary colors, fluorescent colors, etc.). Absent.

In the above-described embodiment, as shown in FIGS. 1 and 2, the display elements 2 of the display panel 4 are arranged in a rectangular shape in two vertical and horizontal directions (X and Y directions).
The case where the Y-section coil 11 is arranged on two axes has been described. However, as shown in FIGS. 7 and 8, the display elements 2 of the display panel 4 are arranged in a triangular shape in three directions (X direction, Y direction, Z direction), and the X part coil 10, the Y part coil 11 and the Z part coil are arranged. The partial coils 14 may be arranged on three axes at 120 ° intervals. In this case, it is necessary to connect the X section drive circuit 12, the Y section drive circuit 13, and the Z section drive circuit 19 to the X section coil 10, the Y section coil 11, and the Z section coil 14, respectively. Similarly, it is possible to arrange the coil and its driving circuit on four or more axes.

In the above embodiment, the case where the front surface of the front panel 3 is flat as shown in FIG. 5 has been described. However, as shown in FIG. 2, the effective display area of each display element 2 can be increased and the dead space of the display panel 4 can be reduced.

In the above embodiment, the case where the stator 6 is cylindrical as shown in FIG. 3 has been described. However, as shown in FIG. 10, the stator 6 has a cylindrical shape. It is also possible. In this case, the movable element 7 is rotatably sandwiched between the stator 6 and the front panel 3, so that the back panel 5 can be omitted and the cost can be reduced.

Further, in the above-described embodiment, the case where the information display device 1 is used alone has been described. However, as shown in FIG. 11, a large number (four in FIG. 11) of the information display devices 1 are combined. A screen information display panel can also be configured. In this case, the writing device 15 of each information display device 1 is attached to the back of the back panel 5 and the display plates 4 of each information display device 1 are arranged without gaps, so that one image is expressed by all the information display devices 1. It is also possible.

[0030]

As described above, according to the present invention,
When a specific coil is energized, the polarity of the stator is inverted, and the mover and the capsule are rotated by 180 °, so that it is possible to provide an information display device capable of easily changing display contents. Moreover, since all the stators have a hysteresis characteristic with respect to the reversal of their polarities, it is not necessary to always turn on the power of the information display device when displaying a still image on the display panel. High power.

As a result, if this information display device is used as a substitute for a projector, lectures, conferences, and briefings can be held in a bright place. It contributes to.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of an information display device according to the present invention.

FIG. 2 is an enlarged detailed view of a part of the information display device shown in FIG.

3A and 3B are views showing the movement of the mover of the information display device shown in FIG. 1, wherein FIG. 3A is a front view when a current is applied to an X-section coil in a positive direction, and FIG. FIG. 3C is a front view when a current is applied to the X coil in the reverse direction, and FIG. 3D is a right side view thereof.

FIG. 4 is a half sectional view of a mover of the information display device shown in FIG.

5 is an enlarged sectional view of a display element of the information display device shown in FIG.

FIG. 6 is a graph showing hysteresis characteristics of a magnetic body.

FIG. 7 is a front view showing a second embodiment of the information display device according to the present invention.

8 is an enlarged detailed view of a part of the information display device shown in FIG.

9 is an enlarged sectional view of a display element of the information display device shown in FIG.

FIG. 10 is a principle view showing a third embodiment of the information display device according to the present invention.

11A and 11B are diagrams illustrating an example of a use state of the information display device according to the present invention, wherein FIG. 11A is a front view and FIG. 11B is a right side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Information display device 2 ... Display element 3 ... Front panel 3a ... Convex lens 4 ... Display panel 5 ... Back panel 6 ... Stator 7 ... Mover 9 ... Capsule 10 ... Coil (X Part 11) Coil (Y part coil) 12 ... Driving device (X part driving circuit) 13 ... Driving device (Y part driving circuit) 14 ... Coil (Z part coil) 15 ... Writing device 19 ... ... Drive device (Z part drive circuit)

Claims (7)

[Claims] An information display device (1) having a display plate (4) in which a number of display elements (2) are arranged on a plane and sandwiched between a front panel (3) and a back panel (5). A movable element (7) made of a permanent magnet is rotatably supported on a stator (6) made of a magnetic material having hysteresis characteristics as each of the display elements. A coil (10, 11, 14) is mounted on each of the display elements in two or more axes so as to surround the stator of the display element. Driving device (1
An information display device comprising: 2, 13, 19). 2. The information display device according to claim 1, wherein the stator has a cylindrical shape. 3. The information display device according to claim 1, wherein the stator has a cylindrical shape. 4. The information display device according to claim 1, wherein the capsule (9) is provided with fluorescence. 5. The information display device according to claim 1, wherein a transparent lubricant is filled around the capsule (9). 6. The information display according to claim 1, wherein a convex lens (3a) is formed on the front surface of the front panel (3) so as to correspond to the display element (2). apparatus. 7. A writing device (15) detachably provided in a form that can be magnetically coupled to a driving device (12, 13, 19). Information display device.